WO2016086498A1

WO2016086498A1 - Application of glass fiber having low crystallization temperature, low crystallization rate and ultra-high content of aluminum, and preparation method and composite material thereof

Info

Publication number: WO2016086498A1
Application number: PCT/CN2015/000506
Authority: WO
Inventors: 杨德宁
Original assignee: 杨德宁
Priority date: 2014-12-01
Filing date: 2015-07-15
Publication date: 2016-06-09
Also published as: TW201623181A

Abstract

A glass fiber having a low crystallization temperature, a low crystallization rate and an ultra-high content of aluminum; the glass fiber has a nominal diameter within a range of 5 micrometer to 13 micrometer, and the variation of the diameter of the glass fiber is within a range of ±15% of the nominal diameter. The glass fiber comprises 21-25 wt.% or 25.1-39 wt.% of aluminum oxide, 0.001-8.7 wt.% of sodium oxide and 7-14 wt.% of magnesium oxide, and comprises silicon oxide with a weight percentage 2.61-4.8 times greater than that of calcium oxide, and calcium oxide with a weight percentage 1-1.8 times greater than that of magnesium oxide.

Description

Application of low crystallization temperature, low crystallization rate, ultra-high aluminum glass fiber, preparation method thereof, composite material

Technical field

The invention belongs to the field of glass fibers; in particular, it relates to a low crystallization temperature, a low crystallization rate, an application of an ultra-high aluminum glass fiber, a preparation method thereof, and a composite material.

The invention mainly belongs to a new use invention of a chemical product;

In new applications, new glass products [low crystallization temperature] and [low crystallization rate] material properties have been discovered; these new properties have produced unexpected technical effects.

The invention mainly belongs to a new use invention of a chemical product;

In particular, glass materials of a specific composition of the type [1].[2].[3] of the prior art are compared. In the use of the glass fiber of the present invention: new glass products [low crystallization temperature] and [low crystallization] are found. Speed] material properties, thus ensuring ultra-high aluminum glass fiber with high fracture strength characteristics with [low viscosity temperature properties] and [aluminum, silicon, calcium, magnesium eutectic properties], overcoming technology in large production Difficulties, the production of normal 髙 quality, produced unexpected technical effects.

This is not clear in common sense and cannot be inferred from common sense.

The present invention represents a technical development trend in the field of new use of glass fibers; the present invention also overcomes the above-mentioned technical problems that are eager to solve in the field of new use of glass fibers but have never been successful.

Background technique

There are prior art techniques [1] that are close to, but have, and are not identical to the present invention:

The inventor's CN201110060932.1 has glass fiber, a preparation method and a glass fiber composite material with high breaking strength, energy saving, environmental protection and low viscosity characteristics.

First, there is a comparative technique [2], which is close to, but has a crossover, and is not identical to the present invention:

The inventor's CN 201310161555, X is a glass fiber, a preparation method thereof and a glass fiber composite material.

There are prior art techniques [3] that are close to, but have, and are not identical to the present invention:

The inventor's CN 201410408595.4 is a glass fiber produced by a cooling portion anti-crystallization method.

First comparative technique [4], alkali-free E glass fiber: in terms of weight percent, its composition contains about 55% silicon oxide, less than 2% magnesium oxide, more than 20% calcium oxide, about 14% aluminum oxide, sodium oxide. Less than 1%, boron oxide is about 8%.

First comparative technology [5], S grade high strength glass fiber: in terms of weight percentage, its composition contains about 63% of silicon oxide, about 0.3% of calcium oxide, about 14% of magnesium oxide, about 25% of alumina, oxidation. Boron is about 2%; when the glass fiber diameter is ≤ 9 microns, the breaking strength (N/tex) is generally within 0.8.

Equipment and method for testing product properties

(A) Using a crystallization oven: The on-line [highest point] and the lower line [lowest point] of the crystallization temperature of various glass materials to be measured are measured.

(B) Method for testing viscosity temperature: using the US THETA rotary high temperature viscometer.

(C) Method for testing the properties of the breaking strength: (determined according to the standard specified in CB/T7690.2)

(D) Crystallization rate test method:

Using a glass melting furnace, the crystallization rate of different glasses is tested at the upper line [ie, the highest point] of the glass crystallization temperature zone, and the temperature is gradually lowered: (not by the prior art, The test purpose characteristics and test equipment and test methods of the new material properties of the glass crystallization rate are also defects caused by the crystallization of the product of the type of the invention which will be unique in the large-scale production, and the original and the first ):

In the specification of the present invention, the magnitude of the minute value of all the crystallization rates, and thus the speed of the crystallization rate, are determined by the same glass melting furnace specified in the lower part, and the analysis of the different glasses specified in the lower part. The data obtained from the test method of crystal velocity is based on:

a. The characteristics of the selected glass melting furnace are:

1. The glass melting furnace is provided with a display for accurately measuring the temperature inside the furnace for observing and recording temperature changes.

2. The overall thermal insulation performance of the selected glass melting furnace should be good. The temperature in the furnace should be kept at least 1500-850 °C for a period of 150 minutes or more; that is, the glass liquid is in the furnace. It is sufficient time for the temperature inside to remain at least 150 minutes or more to complete the natural temperature lowering process of the furnace temperature of 1300-850 °C. (Because the upper line range of the glass crystallization temperature zone of the product of the invention is mostly within the range of 1300--850 ° C, for example, the upper line range of the glass crystallization temperature zone of a product is: 1230--920 ° C)

b. Test purpose:

Since the product of the present invention has the characteristic that the upper line [highest point] of the crystallization temperature is higher than the molding temperature, in order to study the selective use of glass having a relatively slow crystallization rate in large production, it is advantageous to form before molding in large production. Especially in the cooling work part, the glass liquid cooling process stage, reducing the risk of devitrification of the glass liquid; in particular, in the cooling work part of the liquid line edge and corners and bottoms, which are easy to devitrify, add some heating control devices, and add The temperature is controlled to be higher than the crystallization temperature on the line 50-80 ° C;

However, the actual state is that in the corners and bottom of the cooling working part, due to the slow flow of some areas of the molten glass, some products, in some areas with slower flow, the temperature of the molten glass drops faster. The apex of the crystal temperature begins to drop, and the glass of this product produces local crystallization in only 30-35 minutes. This will make such products, in large production, prone to the risk of unqualified products of partially devitrified glass fibers after entering the molding stage.

Therefore, in the large production, the glass product having the relatively slow crystallization rate of the present invention should be selectively used, because of its relatively slow crystallization rate: 45-70 when the temperature of the glass liquid starts to fall from the apex of the crystallization temperature. No crystallization occurred in minutes or 60-90 minutes or 60-150 minutes. The slow crystallization rate of the glass liquid of the glass material discovered by the invention can be beneficial to solve the corner of the cooling working part. And the bottom, when some of the slower flow areas are partially devitrified; due to the slow crystallization rate of the molten glass, in some areas with slower flow, it is easy to overcome the local devitrification of the glass fiber forming stage. The risk of substandard products.

c. Test method for crystallization rate of different glasses:

In the first step, the temperature of the crystal ladder is measured first, and the on-line [highest point] and the lower line [lowest point] of the crystallization temperature of various glass materials to be measured are measured.

The second step,

Put the glass raw material into the melting pot;

2. Put it in a glass melting furnace;

3. Turn off the power after melting to make the glass melting furnace cool naturally;

4. According to the upper line [highest point] of the crystallization temperature of the glass to be measured (for example, 1230--920 °C), the temperature of the internal temperature of the furnace is observed to be more accurate (for example, 1230 ° C) Time to the time period required for the measurement;

5. If the melting pot is taken out after 20 minutes, the glass will be quickly cooled to glass and observed for crystallization. Thus, the glass to be measured is obtained from the upper line of the crystallization temperature [highest point]. Naturally cool down the nature of the crystallization rate for 20 minutes; or take out the melting pot after 45 minutes; or remove the melting pot after 60 minutes; or remove the melting pot after 90 minutes; or remove the melting pot after 120 minutes; or 150 minutes Thereafter, the melting pot was taken out; the properties of the glass to be measured, the crystallization rate of 20, 45, 60, 90, 120, and 150 minutes from the natural temperature drop of the upper line [highest point] of the crystallization temperature were obtained.

Summary of the invention

The invention relates to a low crystallization temperature, a low crystallization rate, and an ultra-high alumina glass fiber, characterized in that the alumina content is 21%--39% and the sodium oxide content is 0.01-16% by weight percentage. The content of magnesium oxide is 7%-20%, the content of silica is 2.61-4.8 times that of calcium oxide, and the content of calcium oxide is magnesium oxide. 1, 0-1, 8 times the content.

The invention relates to a high softening point, a low difference of a thermal expansion coefficient in a high temperature region, a low crystallization rate, an ultra-high aluminum medium and a low alkali, and a heat resistant glass fiber, characterized in that the alumina content thereof is 21%-25% or 25.1-39%, the silica content is 2.61-4.09 times or 3.61-4.09 times or 4.1-4.8 times of the calcium oxide content.

The use of a low crystallization temperature, a low crystallization rate, and an ultra-high alumina glass fiber according to claim 1, wherein the glass fiber has a nominal diameter of from 5 micrometers to 13 micrometers, and the deviation value of the glass fiber diameter is Within ±15% of the nominal diameter.

According to claim 1, a method for preparing a high softening point, a low difference in thermal expansion coefficient of a high temperature region, a low crystallization rate, and an ultrahigh aluminum low alkali heat resistant glass fiber having a nominal diameter of 5 Within micron to 13 microns, the deviation of the diameter of the glass fiber is within ±15% of the nominal diameter, which is characterized by:

Step 1. The raw material of various components required for the glass fiber formulation according to claim 1, after being mixed and stirred, melted at a melting temperature corresponding to each glass fiber formulation to form a glass fiber liquid having a predetermined viscosity, and then homogenized. , clarify, discharge bubbles, forming a flowable melt;

In step 2, the molten glass fiber body formed in the step 1 is drawn at a high speed through a plurality of holes of a porous refractory metal plate to form a glass fiber, and the glass fiber product can be obtained by cooling.

Description of the combined invention and the dependent claims:

Not only is the independent claim 1 inventive, the following 14 dependent claims are also inventive.

The following 14 types of crucible combination applications with a low crystallization temperature, low crystallization rate, and ultra-high alumina glass fiber are first used in fiberglass applications:

New [a. low crystallization temperature] material properties and [a. low crystallization rate] material properties were found; and known compounds were known [c. aluminum and silicon at low viscosity and high aluminum content, The properties of the eutectic of calcium and magnesium] and the various effects produced are substantially improved and improved.

These material properties and technical effects are integrated into each of the combination inventions, forming an interrelated and supportive support for each of the 14 types of crust combinations; for the corresponding 14 categories of traditional products, New unanticipated functions and unpredictable technical effects; all 14 first-class traditional products Products, the unobvious technical effects that have never been revealed; and because these non-obvious technical effects are also unclear in common sense, they cannot be inferred from common sense; therefore, there is substantial progress and creativity.

It is also possible to combine the properties of these materials with each new type of knot formed, and judge that it is an invention of a change in the relationship of the elements; in the content of the invention, after the change of the relationship of each of the different types of knots in the 14 categories, for the corresponding 14 In the case of traditional products, new and unpredictable functions and unexpected technical effects are produced. It is also unclear in common sense and cannot be inferred from common sense; therefore, there is substantial progress. And creativity.

Dependent Claims Invention and Combination Invention 1:

A glass fiber composite material characterized by comprising

Plastic substrate, and

The use of a low crystallization temperature, low crystallization rate, ultra-high alumina glass fiber according to claim 1 embedded in a plastic substrate.

The technical effects of the invention of the dependent claims and the combination of the invention 1 are as follows:

The glass fiber composite material of the invention forms functional support of each other after the glass fibers of the invention are embedded in the plastic matrix;

Since the invention of the chemical use described later in the glass fiber application, [A] has [the highest point of the crystallization range of the glass material is much higher than the viscosity temperature of 10 ^2.5 (Pa·s)] and [low analysis Crystal Velocity Properties]; [B] produced unexpected technical effects: By overcoming the technical difficulties, it is possible to guarantee the high-alloy aluminum glass fiber and carry out the normal production of the 髙 quality, in order to ensure the quality of the normal 髙 quality. Production, in the use of glass fiber, the appearance of [low viscosity temperature properties], [aluminum, silicon, calcium, magnesium eutectic properties], [high fracture strength characteristics] of glass fiber products appeared, resulting in the preparation Less technical effects.

In the present invention, when the glass fiber diameter is ≤9 μm, the breaking strength (N/tex) can reach 0.75-1.25; the E glass fiber breaking strength (N/tex) 0.55 can be 1-1.2 times higher. And now 95% of the world's fiberglass composite The material is made of E glass fiber.

What is also to be noted here is the characteristic of the structure that can functionally support each other: since the resin usually accounts for less than 30% of the glass fiber composite material and the glass fiber accounts for more than 70%, the glass fiber is the skeleton and the fracture of the composite material. Strength plays a decisive role.

Therefore, if the breaking strength of the glass fiber is doubled, 35% of the glass fiber can be used, and 15% of the resin can be used, and the weight of the glass fiber composite material is also reduced by 50%; however, the breaking strength of the glass fiber composite material is unchanged;

If the breaking strength of the glass fiber is doubled, and 70% of the glass fiber is used, and 30% of the resin is used, the weight of the glass fiber composite is constant; however, the breaking strength of the glass fiber composite is doubled.

The present invention - a new performance glass fiber composite material, can select or improve the technical effect of breaking strength twice as high as that of the conventional glass fiber composite material. Or choose to produce a technical effect that the breaking strength of the composite is constant when the weight is only 1/2. Can be widely used in wind power, petrochemical pipes, ship shells, aircraft shells, electronic components, vehicle housing and other fields.

Dependent Claims Invention and Combination Invention 2:

A glass fiber composite material blade for wind power, characterized by comprising

Plastic substrate, and

a composite material made of a low crystallization temperature, a low crystallization rate, and an application of an ultra-high alumina glass fiber according to claim 1 embedded in a plastic substrate;

Wind blade composition: glass fiber composite wind blade leaf shell; glass fiber composite wind blade leaf root; glass fiber composite wind blade structure girders.

The technical effects of the invention of the dependent claims and the combination of the invention 2:

The invention relates to a wind fiber fiberglass composite material blade and a wind blade composition: a wind blade leaf shell; a wind blade leaf root; a wind blade structure beam, in which the glass fiber for wind power is embedded in the plastic base body, functionally capable of each other stand by;

In the present invention, when the glass fiber diameter is ≤9 μm, the breaking strength (N/tex) can reach 0.75-1.25; the E glass fiber breaking strength (N/tex) 0.55 can be 1-1.2 times higher. And now 95% of the global fiberglass composites use E-glass.

What is also to be noted here is the characteristic of the structure that can functionally support each other: since the resin usually accounts for only 30% or less of the glass fiber composite material, and the glass fiber accounts for more than 70%, the glass fiber is the composite material. The skeleton and breaking strength play a decisive role.

The present invention - a new performance glass fiber composite material, can select or improve the technical effect of breaking strength twice as high as that of the conventional glass fiber composite material. Or choose to produce a technical effect that the breaking strength of the composite is constant when the weight is only 1/2. It can be widely used in the field of glass fiber composite materials for wind power; the wind expansion area is doubled under the same weight, and the wind power conversion efficiency is doubled.

Dependent Claims Invention and Combination Invention 3:

Glass fiber composite wind blade leaf shell characterized by

Plastic substrate, and

A composite of a composite material produced by the application of a low crystallization temperature, a low crystallization rate, and an ultra-high alumina glass fiber embedded in a plastic substrate as described in claim 1.

The technical effects of the invention of the dependent claims and the combination of the invention 3:

The glass fiber composite wind blade leaf shell of the invention forms functional support with each other after the glass fiber of the invention is embedded in the plastic matrix;

Glass fiber composite wind blade leaf shell is an important part of glass fiber composite wind blade.

Dependent Claims Invention and Combination Invention 4:

Glass fiber composite wind blade blade root, characterized in that the composite wind blade comprises

Plastic substrate, and

A composite material produced by the application of a low crystallization temperature, a low crystallization rate, and an ultra-high alumina glass fiber according to claim 1 embedded in a plastic substrate.

The technical effects of the invention of the dependent claims and the combination of the invention 4:

The glass fiber composite wind blade blade root of the invention forms functional support with each other after the glass fiber of the invention is embedded in the plastic matrix;

Glass fiber composite wind blade blade root is an important component of fiberglass composite wind blade Minute.

RELATED STATEMENT OF INVENTION AND COMBINATION 5: A glass fiber composite wind blade structure beam characterized by

Plastic substrate, and

A composite girders made of a composite material produced by the application of a low crystallization temperature, a low crystallization rate, and an ultra-high alumina glass fiber according to claim 1 embedded in a plastic substrate.

The technical effects of the invention of the dependent claims and the combination of the invention 5:

The invention relates to a glass fiber composite wind blade structure beam, which is functionally capable of supporting each other after the glass fiber of the invention is embedded in the plastic matrix;

Dependent Claims Invention and Combination Invention 6:

A glass fiber composite hull structure characterized by:

Plastic substrate, and

A hull structure made of a composite material produced by the application of a low crystallization temperature, a low crystallization rate, and an ultra-high alumina glass fiber according to claim 1 embedded in a plastic substrate.

Technical effects of the invention of the dependent claims and the combination of the invention 6

The glass fiber composite hull structure of the invention forms functional support of each other after the glass fibers of the invention are embedded in the plastic matrix;

The hull structure of the fiberglass composite of the present invention can provide light support for an innovative hull design when used in ships, yachts, and fishing boats.

The present invention - a new performance glass fiber composite material, can select or improve the technical effect of breaking strength twice as high as that of the conventional glass fiber composite material. Or choose to produce a technical effect that the breaking strength of the composite is constant when the weight is only 1/2. Can be widely used in innovative hull design to provide strength protection, improve the performance of ships, yachts, fishing boats due to hull structure, or have faster speed; or more energy efficient; or safer.

Dependent Claims and Combinations of Invention 7: A glass fiber composite aircraft housing structure characterized by comprising

Plastic substrate, and

An aircraft housing structure made of a composite material produced by the application of a low crystallization temperature, a low crystallization rate, and an ultra-high alumina glass fiber according to claim 1 embedded in a plastic substrate.

Technical effects of the invention of the dependent claims and the combination of the invention 7:

A glass fiber composite aircraft housing structure, after the glass fibers of the invention are embedded in a plastic matrix, form functional support;

The present invention - a new performance glass fiber composite material, can select or improve the technical effect of breaking strength twice as high as that of the conventional glass fiber composite material. Or choose to produce a technical effect that the breaking strength of the composite is constant when the weight is only 1/2.

When the glass fiber composite material of the invention is used for the structure of the unmanned aerial vehicle and the rocket shell:

If it is chosen to produce a weight reduction of only 1/2, the technical effect of the fracture strength of the glass fiber composite is unchanged. Provides lightweight support for innovative aircraft designs; or has faster speeds; or more energy efficient; or more secure

Dependent Claims and Combinations 8: A wind power generator comprising a plastic substrate, and

a composite material made of a low crystallization temperature, a low crystallization rate, and an application of an ultra-high alumina glass fiber embedded in a plastic substrate; the phoenix electric blade; the bearing; the generator; Wind tower pillars.

Technical effects of the invention of the dependent claims and the combination of the invention 8

The invention relates to a glass fiber composite material blade for wind power, which is prepared by embedding a glass fiber for wind power into a plastic substrate according to the invention, and a phoenix electric blade; a bearing; a generator; a wind power tower pillar. Formed functional support for each other.

Therefore, in the case of the same weight of the composite wind blade of the present invention, the breaking strength is increased by 100% or more than that of the conventional composite wind blade, and the windward area of the composite wind blade can be increased by 100% or more. Will increase the weight of the wind blade at the same or slightly higher total cost.

However, if the cost is basically not increased (the cost of glass fiber is only a few percent of the cost of wind farm construction), the windward area of the composite wind blade of the present invention is increased by 100%, but it must be accompanied by an increase in wind energy efficiency. 100% of the generators, coupled with bearings and wind towers that can withstand higher wind energy, will increase the wind energy efficiency of the fiberglass composite wind blades by 100%.

The wind power generation device of the present invention has the efficiency of thermal power generation or higher power generation efficiency. This will enable clean renewable energy - wind power generation, with strong technical support in terms of efficiency, economy and wider application.

The wind power generation device of the invention represents a new trend of technological development of the world's wind power new energy industry.

Dependent Claims Invention and Combination Invention 9:

A watercraft characterized by comprising a plastic substrate, and

a hull structure made of a composite material produced by the application of a low crystallization temperature, a low crystallization rate, and an ultra-high alumina glass fiber embedded in a plastic substrate; a power plant; a cockpit; Ship deck.

The technical effects of the invention of claim 9 and the combination invention 9:

The hull structure of the watercraft of the present invention not only forms the composite hull structure made of glass fiber after the glass fiber of the invention is embedded in the plastic matrix, but also supports each other in function, and is indispensable with a watercraft. The powerplant, cockpit, and ship deck are functionally supported by each other.

The present invention - a new performance glass fiber composite material, can select or improve the technical effect of breaking strength twice as high as that of the conventional glass fiber composite material. Or choose to produce a composite material with a breaking weight of only 1/2. Constant technical effects. Can be widely used in innovative hull design to provide strength protection, improve the performance of ships, yachts, fishing boats due to hull structure, or have faster speed; or more energy efficient.

Ships, yachts, and fishing boats will be able to withstand greater waves or various external impacts; and have higher safety.

Dependent Claims and Combinations of Invention 10: An aircraft characterized by comprising a plastic substrate, and

A composite material made of a composite material produced by the application of a low crystallization temperature, a low crystallization rate, and an ultra-high alumina glass fiber embedded in a plastic substrate; a power device; a control system Device.

The technical effects of the invention of the dependent claims and the combination of the invention 10:

An aircraft housing structure, after the glass fiber is embedded in the plastic substrate, forms an aircraft outer casing structure, and a power device; a control system device; can functionally support each other.

If it is chosen to produce a weight reduction of only 1/2, the technical effect of the fracture strength of the glass fiber composite is unchanged. It will save a lot of power energy; or speed up the flight; or lengthen the flight time; it can also provide light support for innovative aircraft designs.

If you choose to increase the breaking strength, the technical effect is 1 times higher than the traditional glass fiber composite. It will make the rocket especially capable of withstanding greater explosive thrust; and with higher safety; or it can provide strength guarantee for innovative rocket design.

Dependent Claims and Combinations 11: An aircraft characterized by comprising a plastic substrate, and

A composite material produced by the application of a low crystallization temperature, a low crystallization rate, and an ultra-high alumina glass fiber embedded in a plastic substrate; the aircraft outer casing structure; the power device; the wing ; driving control system device.

Technical effects of the invention of the dependent claims and the combination 11 of the invention:

The outer shell structure of the aircraft, after the glass fiber is embedded in the plastic matrix, forms the structure of the aircraft shell, and the power unit; the wing; the driving control system device; can support each other in function.

When the glass fiber composite material of the invention is used in an aircraft shell structure:

If it is chosen to produce a weight reduction of only 1/2, the technical effect of the fracture strength of the glass fiber composite is unchanged. It will greatly save aircraft power energy; or speed up the flight of the aircraft; or lengthen the flight time of the aircraft; it can also provide light support for innovative aircraft design.

If you choose to improve the breaking strength, the technical effect is 1-3 times higher than the traditional glass fiber composite. The aircraft will be able to withstand higher flight speeds; and have higher aircraft safety; or provide strength protection for innovative aircraft designs.

Dependent Claims and Combinations of Invention 12: A chemical or petroleum pipe, comprising: a plastic matrix, and

A chemical or petroleum pipe made of a composite material produced by the application of a low crystallization temperature, a low crystallization rate, and an ultra-high alumina glass fiber according to claim 1 embedded in a plastic substrate.

The technical effects of the invention of the dependent claims and the combination of the invention 12:

A chemical or petroleum pipe, in which a glass fiber composite chemical or petroleum pipe outer casing structure is formed after the glass fiber is embedded in a plastic matrix, functionally supporting each other.

Therefore, the glass fiber of the invention can be produced and combined into the plastic matrix to form a glass fiber composite structure which can functionally support each other; the glass fiber composite structure also has the 髙 breaking strength, light weight and high product quality, and the finished product New performance with high rates.

The present invention - a new performance glass fiber composite material, can select or improve the technical effect of breaking strength twice as high as that of the conventional glass fiber composite material. Or choose a glass fiber composite material to produce a technical effect that the breaking strength is constant when the weight is only 1/2.

When the glass fiber composite material of the invention is used in chemical or petroleum pipe shell structure:

If it is chosen to produce a weight reduction of only 1/2, the technical effect of the fracture strength of the glass fiber composite is unchanged. It will result in significant cost savings; it can also provide lightweight support for innovative chemical or petroleum pipe designs.

If you choose to increase the breaking strength, the technical effect is 1 times higher than the traditional glass fiber composite. Chemical or petroleum pipes will be able to withstand greater pressures to accelerate the delivery of chemicals or oil or natural gas; and have higher safety; or provide strength protection for innovative chemical or petroleum pipe designs.

A high performance fiberglass composite housing automobile comprising:

Characterized by: comprising a plastic matrix, and

a composite material produced by the application of a low crystallization temperature, a low crystallization rate, and an ultra-high alumina glass fiber according to claim 1 embedded in a plastic substrate;

Automotive window structure;

And power unit; instrument panel; direction controller; car shell; car chassis; car brakes;

The technical effect of the invention of claim 13 and the combination invention 13

A high-performance glass fiber composite shell automobile, after the glass fiber is embedded in the plastic matrix, forms a glass fiber composite shell structure, which is functionally supported by each other.

Especially when used in a vehicle casing, it also exhibits a technical effect of reducing the weight and generating energy saving.

Because of the comparison of the steel casing, due to the inelasticity, it will be deformed after being subjected to a light impact, not only repairing the skin paint, but also repairing the deformed steel plate, so the cost is high. The invention has a more elastic composite material shell. After being subjected to a light impact, it is not easy to be deformed by the depression, and will rebound back to the original shape, so that only the surface is scratched and the paint is low in cost.

When the glass fiber composite material of the invention is used in a vehicle housing structure:

If the present invention is selected to produce a lighter weight of only 1/2 than the prior art, the technical effect of the breaking strength of the glass fiber composite material is unchanged. It will greatly save costs; it can also be designed for the innovation of various types of vehicles, and energy-saving technical effects. Provide support.

If you choose to increase the breaking strength, the technical effect is 1 times higher than the traditional glass fiber composite. There will be greater safety; or it can provide strength protection for the design of innovative vehicles.

DRAWINGS

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic cross-sectional view showing a glass fiber article of the present invention.

2 is a schematic flow chart showing a process for preparing a glass fiber of the present invention.

Description of the reference numerals

1: indicates a glass fiber product

detailed description

Hereinafter, examples of the application of a low crystallization temperature, a low crystallization rate, and an ultra-high alumina glass fiber of the present invention will be described in detail.

Embodiment 1 of the present invention:

The glass fiber has a nominal diameter of 9 microns, and the deviation of the diameter of the glass fiber is within ±15% of the nominal diameter, and is characterized by:

In terms of weight percent, the alumina content is 29.2%, the sodium oxide content is 0.1%, the silica content is 47.2%, the calcium oxide content is 13%, and the magnesium oxide content is 10.5%, which is characterized by: the silica content is oxidized. The calcium content is 3.6 times and the calcium oxide content is 1.2 times the magnesium oxide content.

In the present invention, when the glass fiber diameter is ≤ 9 μm, the breaking strength (N/tex) is 1.0.

In this example, the actual melting time is 10 ^1.5 (Pa·s) viscosity temperature 1540 ° C; in this example, when the bubble is discharged, the glass discharge bubble is 10 ² (Pa·s) viscosity temperature 1440 ° C; 10 ^2.5 (Pa·s) viscosity temperature 1380 ° C; 10 ³ (Pa sec) viscosity temperature 1320 ° C;

Low crystallization temperature characteristics:

In this example, there is a crystallization range, 1148-920 ° C; strong crystallization range, 1148-990 ° C.

[A] Because in the glass fiber molding process, a cooler is usually added to the drawing drain plate, and the process temperature of the drawing is required to be within 10 ^2.5 (Pa·s); the highest range of crystallization is possible. Point 1148 ° C, less than 10 ^2.5 (Pa·s) viscosity temperature 1380 ° C, rather than much higher than 10 ^2.5 (Pa·s) viscosity temperature 1380 ° C; meet the process requirements of the fiber temperature during the fiberglass molding process

[B] In addition, the crystallization rate of the present example of the present invention is relatively slow, and crystallization is started after 60-120 minutes in the upper line range of each glass crystallization temperature zone under the condition of gradually decreasing temperature. It will not start crystallization in 10 to 31 minutes; therefore, it can overcome the difficulties of the prior art in large production, so that the bottom, the corner of the cooling part, or the glass area before molding is heated. Device and temperature measuring device, will not be measured The temperature difference from the temperature point to the start of heating and the instability of the fluidity of the glass liquid, in the large production, the crystallization rate is not too fast, local crystallization occurs, the product is unqualified, and the glass fiber is not produced. Difficulties.

Therefore, in the present example of the present invention, in the large production: due to the bottom portion, the corners of the cooling portion, or the glass liquid region before molding, the heating device and the temperature measuring device are added, even if the heating is detected by the temperature point. The time difference and the fluidity of the glass liquid are unstable, but in the large production, the crystallization rate is 4-5 times slower, and the local crystallization is not easy to occur, or the drawing hole is blocked, or the product is not easy to be produced. Qualified will not cause difficulties in producing fiberglass.

Moreover, due to the use of this chemical product in the use of glass fibers, the use of the two newly discovered properties of [A].[B] has achieved unexpected technical effects:

[1] In order to make the present invention, there are [low viscosity temperature properties] and [aluminum, silicon, calcium, magnesium co-melt properties], ultra-high aluminum fiberglass with high fracture strength characteristics, overcoming technology in large production Difficulties; the technical effect of the unpredictable large-scale production of normal enamel quality.

[2] In order to achieve the normal process requirements of the viscosity temperature of the drawing during the glass fiber molding process, it is possible to control the same normal quality and large-volume production efficiency as the E-glass fiber [ie, than the S-class fiberglass production line, the production capacity is large. A hundred times] unpredictable technical effect.

[3] can achieve lower viscosity and temperature than E glass fiber, and in large production, it will be more cost-effective than E-glass fiber, and the technical effect of reducing energy consumption is not expected.

[4] can achieve a product with a S-class glass fiber breaking strength (N/tex) of 0.8, the same or a more 髙 (N / tex) 1.25-1.3 level; because the viscosity temperature is lower than the S-class glass fiber, but in In large production, it will save more cost than S-class glass fiber, and the technical effect of reducing energy consumption is not expected.

On the other hand, if these new properties are not found, it is impossible to overcome the technical difficulties in large-scale production, and the goal of performing large-scale production with normal defects can not be achieved. Can not produce the above-mentioned unexpected technology effect.

Further explanation, the highest point of the crystallization range is lower than the process temperature of 10 ^2.5 (Pa·s) viscosity temperature:

Since the glass component is determined to ensure continuous drawing, it is necessary to balance the upward force and the downward drawing force caused by the tension on the surface of the glass. The temperature range that is balanced is very narrow.

[1] If a specific composition of the prior art type is used, the crystallization temperature is too large, and the glass material at the molding temperature is not in production, and will be in the molding process at a temperature of 10 ^2.5 (Pa·s). In the stage, the highest point of the crystallization range is higher than the viscosity of the glass material of 10 ^2.5 (Pa·s) viscosity temperature; crystallization occurs on the drawing drain plate, and the drawing of the drawing plate is blocked, and the production cannot be performed.

[2] If the plug-in drain plate is blocked in order to prevent crystallization from being formed on the drawing plate during the molding process, the highest point of the crystallization range is much higher than 10 ^2.5 for the specific components of the prior art type (Pa· Second) viscosity temperature of the glass material, using a molding process that rises to a viscosity temperature of more than 10 ^2.5 (Pa·s) [eg 10 ^2.3 (Pa·s) -10 ² (Pa·s)]; Because the viscosity is too small, that is, the temperature is too high, the crescent-shaped root becomes unstable, and a slow 'pulsation' phenomenon can be seen on the root. This phenomenon indicates that the amount of glass liquid passing through the root of each unit is different. As a result, the thickness of the fiber also fluctuates greatly, sometimes because the amount of molten glass passing through the root of the wire is instantaneously increased to the temperature of the molten glass at the root of the wire. Ascending to the surface tension becomes the dominant factor, when the glass fiber breaks from the root of the wire. Therefore, if the viscosity is too small, that is, if the temperature is too high, normal mass production cannot be formed.

Embodiment 2 of the present invention:

In an embodiment of the invention, the glass fiber has a nominal diameter of 9 microns, and the deviation of the diameter of the glass fiber is within ±15% of the nominal diameter, and is characterized by:

In terms of weight percent, the alumina content is 25%, the sodium oxide content is 0.1%, the silica content is 52%, the calcium oxide content is 13.3%, and the magnesium oxide content is 9.6%, which is characterized by: the silica content is oxidized. The calcium content is 3.9 times and the calcium oxide content is 1.4 times the magnesium oxide content.

In the present invention, when the glass fiber diameter is ≤ 9 μm, the breaking strength (N/tex) is 0.8.

In this example, the actual melting time is 10 ^1.5 (Pa·s) viscosity temperature 1565 ° C; in this example, the actual glass discharge bubble viscosity temperature 10 ² (Pa·s) 1425 ° C; 10 ^2.5 (Pa·s) viscosity temperature 1325 ° C; 10 ³ (Pa·s) viscosity temperature 1230 ° C;

Low crystallization temperature characteristics:

In this example, there is a crystallization range, 1305-910 ° C; a strong crystallization range, 1305-980 ° C.

[A] Because in the glass fiber molding process, a cooler is usually added to the drawing drain plate, and the process temperature of the drawing is required to be within 10 ^2.5 (Pa·s); the highest range of crystallization is possible. Point 1305 ° C, less than 10 ^2.5 (Pa sec) viscosity temperature 1325 ° C, rather than much higher than 10 ^2.5 (Pa sec) viscosity temperature 1325 ° C; meet the process requirements of the viscosity temperature of the fiber drawing process stage drawing;

[B] In addition, the crystallization rate of the present example of the present invention is relatively slow, and crystallization is started after 60-120 minutes in the upper line range of each glass crystallization temperature zone under the condition of gradually decreasing temperature. It will not start crystallization in 10 to 31 minutes; therefore, it can overcome the difficulties of the prior art in large production, so that the bottom, the corner of the cooling part, or the glass area before molding is heated. The device and the temperature measuring device will not be unstable due to the detection of the heating time difference from the temperature point to the start of heating and the fluidity of the molten glass. In the large production, the crystallization rate is not too fast, local crystallization is generated, and the product is easy to be produced. Failure to do so will not cause difficulties in producing fiberglass.

[1] In order to make the present invention, there are [low viscosity temperature properties] and [aluminum, silicon, calcium, magnesium co-melt properties], ultra-high aluminum fiberglass with high fracture strength characteristics, overcoming technology in large production Difficult; Unprecedented technical effects of large-scale production of common enamel quality.

On the other hand, if these new properties are not found, it is impossible to overcome the technical difficulties in large-scale production, and the goal of performing large-scale production with normal defects can not be achieved. The above-mentioned unexpected technical effects cannot be produced.

[See Embodiment 1 of the present invention]

Embodiment 3 of the present invention:

In terms of weight percent, the alumina content is 14.5%, the sodium oxide content is 0.2%, the silica content is 40.3%, the calcium oxide content is 12%, and the magnesium oxide content is 11%, which is characterized by: the silica content is oxidized. The calcium content is 3.35 times and the calcium oxide content is 1.1 times the magnesium oxide content.

In the present example, when the glass fiber diameter is ≤ 9 μm, the breaking strength (N/tex) is 1.25.

In this example, the actual melting time is 10 ^1.5 (Pa·s) viscosity temperature 1620 ° C; in this example, 10 ² (Pa·s) viscosity temperature is 1455 ° C; 10 ^2.5 (Pa·s) viscosity temperature 1395 ° C; 10 ³ ( Pa·second) viscosity temperature 1330 ° C;

Low crystallization temperature characteristics:

In this example, there is a crystallization range, 1371-910 ° C; strong crystallization range, 1371-980 ° C.

[A] Because in the glass fiber molding process, a cooler is usually added to the drawing drain plate, and the process temperature of the drawing is required to be within 10 ^2.5 (Pa·s); the highest range of crystallization is possible. Point 1371 ° C, less than 10 ^2.5 (Pa·s) viscosity temperature 1395 ° C, rather than much higher than 10 ^2.5 (Pa·s) viscosity temperature 1395 ° C; meet the process requirements of the viscosity temperature of the fiber drawing process stage drawing;

[See Embodiment 1 of the present invention]

Embodiment 4 of the present invention:

In terms of weight percent, the alumina content is 23%, the sodium oxide content is 0.1%, the silica content is 47%, the calcium oxide content is 16.7%, and the magnesium oxide content is 13.2%, which is characterized by: the silica content is oxidized. The calcium content is 2.8 times and the calcium oxide content is 1.3 times the magnesium oxide content.

In the embodiment of the present invention, when the glass fiber diameter is ≤ 9 μm, the breaking strength (N/tex) is 0.75.

In this example, the actual melting time is 10 ^1.5 (Pa·s) viscosity temperature 1520 ° C; in this example, the bubble temperature is 10 ² (Pa·s) viscosity temperature 1145 ° C; 10 ^2.5 (Pa·s) viscosity temperature 1290 ° C; 10 ³ ( Pa·second) viscosity temperature 1180 ° C;

Low crystallization temperature characteristics:

In this example, there is a crystallization range, 1265-910 ° C; strong crystallization range, 1210-980 ° C.

[A] Because in the glass fiber molding process, a cooler is usually added to the drawing drain plate, and the process temperature of the drawing is required to be within 10 ^2.5 (Pa·s); the highest range of crystallization is possible. Point 1265 ° C, less than 10 ^2.5 (Pa sec) viscosity temperature 1290 ° C, rather than much higher than 10 ^2.5 (Pa sec) viscosity temperature 1290 ° C; meet the process requirements of the viscosity temperature of the drawing during the glass fiber molding process;

[3] can achieve lower viscosity temperature than E glass fiber, but in large production, it will be more economical than E glass fiber. Cost, the technical effect of reducing energy consumption.

[See Embodiment 1 of the present invention]

Embodiment 5 of the present invention:

In terms of weight percent, the alumina content is 23%, the sodium oxide content is 0.3%, the silica content is 54.7%, the calcium oxide content is 13%, and the magnesium oxide content is 9%, which is characterized in that the silica content is oxidized. The calcium content is 4.2 times and the calcium oxide content is 1.44 times the magnesium oxide content.

In this example, the actual melting time is 10 ^1.5 (Pa·s) viscosity temperature 1670 ° C; in this example, 10 ² (Pa·s) viscosity temperature is 1510 ° C; 10 ^2.5 (Pa·s) viscosity temperature 1415 ° C; 10 ³ ( Pa·second) viscosity temperature 1320 ° C;

Low crystallization temperature characteristics:

In this example, there is a crystallization range, 1355-910 ° C; strong crystallization range, 1355-980 ° C.

[A] Because in the glass fiber molding process, a cooler is usually added to the drawing drain plate, and the process temperature of the drawing is required to be within 10 ^2.5 (Pa·s); the highest range of crystallization is possible. Point 1355 ° C, less than 10 ^2.5 (Pa sec) viscosity temperature 1415 ° C, rather than much higher than 10 ^2.5 (Pa sec) viscosity temperature 1415 ° C; meet the process requirements of the viscosity temperature of wire drawing in the glass fiber molding process.

[B] In addition, the crystallization rate of this example of the present invention is relatively slow, in the upper line range of each glass crystallization temperature zone, under the condition of gradual cooling, after 45-90 minutes or 60-120 minutes, Will begin to devitrify. It will not start crystallization in 10 to 31 minutes; therefore, it can overcome the difficulties of the prior art in large production, so that the bottom, the corner of the cooling part, or the glass area before molding is heated. The device and the temperature measuring device will not be unstable due to the detection of the heating time difference from the temperature point to the start of heating and the fluidity of the molten glass. In the large production, the crystallization rate is not too fast, local crystallization is generated, and the product is easy to be produced. Failure to do so will not cause difficulties in producing fiberglass.

Further explain the process reasons why the highest point of the crystallization range is lower than the viscosity temperature of 10 ^2.5 (Pa·s):

[See Embodiment 1 of the present invention]

Embodiment 6 of the present invention:

In terms of weight percent, the alumina content is 25%, the sodium oxide content is 5%, the silica content is 50.5%, the calcium oxide content is 10.7%, and the magnesium oxide content is 8.8%, which is characterized by: the silica content is oxidized. The calcium content is 4.7 times and the calcium oxide content is 1.2 times the magnesium oxide content.

In the embodiment of the present invention, when the glass fiber diameter is ≤ 9 μm, the breaking strength (N/tex) is 0.8.

In this example, the actual melting time is 10 ^1.5 (Pa·s) viscosity temperature 1650 ° C; in this example, 10 ² (Pa·s) viscosity temperature is 1480 ° C; 10 ^2.5 (Pa·s) viscosity temperature 1370 ° C; 10 ³ ( Pa·second) viscosity temperature 1260 ° C;

Low crystallization temperature characteristics:

In this example, there is a crystallization range, 1265-910 ° C; strong crystallization range, 1245-980 ° C.

[A] Because, in the glass fiber molding process, a cooler is usually added to the drawing drain plate, and the process temperature of the drawing is required to be within 10 ^2.5 (Pa·s); The highest point is 1265 ° C, lower than 10 ^2.5 (Pa·s) viscosity temperature 1370 ° C, rather than much higher than 10 ^2.5 (Pa·s) viscosity temperature 1370 ° C; meet the process requirements of the viscosity temperature of the fiber drawing process stage drawing;

[4] can achieve a product with a S-level glass fiber breaking strength (N/tex) of 0.8, the same or more ambiguous (N/tex) 1.25-1.3 level; because the viscosity temperature is lower than S-class glass fiber, and in large production, it will be more cost-effective than S-class glass fiber, and the technical effect of reducing energy consumption is not expected.

[See Embodiment 1 of the present invention]

From the above-described 10 embodiments of the present invention, it is analyzed how the present invention discovers new properties, produces technical effects, and overcomes the drawbacks of the prior art [1].[2].[3].

There is a comparative technique [1].[2].[3] whose composition is different from the present invention and is not identical:

First, the comparative technology [1], the inventor's CN201110060932.1 has high breaking strength and energy saving, environmental protection and low viscosity characteristics of glass fiber and preparation method and glass fiber composite material.

There is a comparative technique [2], CN 201310161555, the present inventor, a glass fiber, a preparation method thereof, and a glass fiber composite material.

Prior to the comparative technique [3], the inventor's CN 201410408595.4 is a glass fiber produced by a cooling portion anti-crystallization method.

Including the present invention and the glass materials of [1].[2].[3], both of which have different characteristics of the properties of the two-sided glass material:

On the one hand, the glass of this specific composition has sharp crystallization peaks in the DSC curve at the strong crystallization temperature range, and the conversion time of the glass from liquid to crystallization devitrification is short and fast, and there is a technical difficulty in crystallization and devitrification in the cooling process.

On the other hand, there are a variety of excellent glass material features to varying degrees.

In the first technical comparison scheme [1], the content of silicon oxide is 1.9 times to 4.1 times that of calcium oxide. The content of calcium oxide is 1.0 times to 1.8 times the content of magnesium oxide;

In the prior art [2] technical solution: the content of silicon oxide is 4.11 times - 5.48 times of the content of calcium oxide, and the content of calcium oxide is 0.8 times - 1.99 times of the content of magnesium oxide;

In the prior art [3] technical solution: the content of silicon oxide is 1.6-5.8 times that of calcium oxide, and the content of calcium oxide is 0.8--2.1 times of magnesium oxide;

The invention belongs to a new use invention of a chemical product: in the technical solution, the content of silicon oxide is 2.51 times to 4.8 times of the content of calcium oxide, and the content of calcium oxide is 1.0 times to 1.8 times of the content of magnesium oxide;

It can be seen that the composition of the prior art [1].[2].[3] is intersected and not identical to the present invention:

[1] The difference is: 1.9 times -4.1 times the front end of the technique [2] 1.9-2.5 times and 1.6-5.8 times the front end of the contrast technique [4] 1.6-2.5 times, outside the scope of the present invention.

[2] The difference is: 4.11 times - 5.48 times of the back end of technology 3 is 4.81 times - 5.48 times, and the back end of the technique 4 is 4.81 times - 5.8 times of 1.6 - 5.8 times, which is outside the scope of the present invention.

[3] The difference is: in the technical solution of Comparative Technology 3.4: the content of calcium oxide is 0.8 times to 1.99 times of magnesium oxide; 0.8--2.1 times; both the front and the back end are larger than the range of 1.0 times to 1.8 times of the present invention.

The invention belongs to a new invention invention of chemical products:

It was found that in the technical solution, especially when the silica is 2.51 to 4.8 times that of calcium oxide; the calcium oxide is 1.0 to 1.8 times of the magnesium oxide; a new [a. low crystallization temperature] material property is produced. [a. low crystallization rate] material properties; known for known compounds [c. properties of co-melts of aluminum, silicon, calcium, magnesium at low viscosity and high aluminum content] and various effect. Compared with the prior art [1].[2].[3], there are substantial improvements and improvements. (See Examples 1-10)

For the technical solution of the present invention, when the silicon oxide is 2.51 times to 4.8 times that of the calcium oxide; when the calcium oxide is 1.0 times to 1.8 times the magnesium oxide, the above three properties of the abc are found, and The nature of the production, there are substantial improvements and improve various effects; first comparative technology [1]. [2]. [3], technical solutions No, found and revealed.

However, in the prior art [1].[2].[3], in the technical solution, in the technical solution of the present invention, the silicon oxide is 2.51 times-4.8 times that of calcium oxide; the calcium oxide is 1.0 times of magnesium oxide- The technical solutions other than the front and back ends of the 1.8-fold range cannot have [the formation of the above four properties of abcd and the various effects produced, and substantial improvements and improvements], and there are several defects:

[a] such as:

First, there is a comparative technology [1].[2].[3], in the technical solution: 4.11 times - 5.48 times of the back end of the comparison technology [2] 4.81 times - 5.48 times, compared with 1.6 of the comparison technology [3] 5.8 times [back end 4.81 times - 5.8 times], when outside the scope of the present invention, will result in: [d. The low cohesive properties of aluminum, silicon, calcium, magnesium at low viscosity and high aluminum content are not present. result;

See Comparative Example 2:

Comparative Example 2: The technical content of the comparative technique [2] has a silica content of 4.11 times to 5.48 times of the calcium oxide content of 4.11 times to 5.48 times, and a back end of 1.6 to 5.8 times of the comparison technique [3]. In the range of 4.81 times to 5.8 times: Comparative Example 2 [Comparative Example of SiO2 content which is 5.3 times of calcium oxide content]. The silica content of the present invention is outside the range of 2.51 to 4.8 times the calcium oxide content.

Comparative Example 2: In terms of weight percent, the alumina content was 20%, the sodium oxide content was 1%, the silica content was 58%, the calcium oxide content was 11%, and the magnesium oxide content was 10%, which was characterized by: [The content of silicon oxide is 5.3 times that of calcium oxide], and the content of calcium oxide is 1.1 times that of magnesium oxide. When the actual melting time is 10 ^1.5 (Pa·s), the viscosity temperature is too high, which can not be measured by the US THETA rotary high-temperature viscometer; in this example, the bubble temperature is 10 ² (Pa·s) viscosity temperature is 1610 ° C [than calcium sodium glass row When the bubble is 10 ² (Pa·s), the viscosity temperature is 1430 ° C and 髙 180 ° C; it is difficult to discharge bubbles during large production;

It can be seen that the viscosity temperature of Comparative Example 2 at an alumina content of only 20% is so poor that there is no eutectic property of aluminum, silicon, calcium or magnesium at a high aluminum content. It is also impossible to add the alumina content to 25-39% to achieve large-scale production; it is impossible to achieve the purpose of bismuth fracture strength.

[b]如:

And there is a comparative technology [1].[2].[3], in the technical solution:

It is outside the scope of the present invention, such as 1.9 times to 4.1 times the front end of the comparison technique [1] and 1.9 to 2.5 times the front end and 1.6 to 5.8 times the front end of the comparison technique [3].

Will produce the highest point of the crystallization range, higher than the viscosity temperature of 10 ^2.5 (Pa·s), a. will easily produce crystallization on the drawing leakage plate, and block the drawing of the leakage plate, can not be produced; b. or A slow 'pulsation' phenomenon can be seen on the silk roots. This phenomenon indicates that the amount of glass liquid passing through the root of each unit is different. As a result, the thickness of the fiber also fluctuates greatly, sometimes because the amount of molten glass passing through the root of the wire is instantaneously increased to the temperature of the molten glass at the root of the wire. Rising to make the surface tension become the dominant factor, then the glass fiber will break off from the root of the wire, due to the highest point of the crystallization range, higher than the viscosity temperature of 10 ^2.5 (Pa·s) and the temperature will be too high to form normal. Large production.

It is explained by the comparative example 1: (this is the comparative example [1] technical solution, the silicon oxide content is in the range of 1.9-4.1 times of the calcium oxide content, and the range of 1.9-2.5 times [2.0 times the comparative example] The silica content of the present invention is 2.51-4.8 times that of the calcium oxide content, which is an intersection in the range of technical solutions that are not identical.)

The highest point of the crystallization range of the glass material of the specific composition of the prior art [1][3] type is higher than the viscosity temperature of 10 ^2.5 (Pa·s), the comparative example:

In terms of weight percent, the alumina content is 25%, the sodium oxide content is 3%, the silica content is 38%, the calcium oxide content is 19%, and the magnesium oxide content is 15%, which is characterized by: [silicon oxide content is The calcium oxide content is 2.0 times], and the calcium oxide content is 1.3 times that of the magnesium oxide.

In this example, the actual melting time is 10 ^1.5 (Pa·s) viscosity temperature 1460 ° C; in this example, 10 ² (Pa·s) viscosity temperature is 1330 ° C; 10 ^2.5 (Pa·s) viscosity temperature 1220 ° C; 10 ³ ( Pa·second) viscosity temperature 1115 ° C;

Comparative Example 1, in the upper line range of the glass crystallization temperature zone (with crystallization range, 1255-930 ° C; strong crystallization range, 1245-980 ° C), under gradual cooling conditions, within 10 - 31 minutes, will Start crystallization.

Low crystallization temperature characteristics:

Comparative Example 1 has a crystallization range of 1255-930 ° C; a strong crystallization range of 1245-980 ° C.

Because in the glass fiber molding process, a cooler is usually added to the drawing drain plate, and the process temperature of the drawing is required to be within 10 ^2.5 (Pa·s);

[A] Comparative Example 1 has a crystallization range, the highest point of 1255 ° C, greatly 髙 10 20 ^2.5 (Pa sec) viscosity temperature 1220 ° C, rather than less than 10 ^2.5 (Pa sec) viscosity temperature 1220 ° C; Process requirements for the viscosity temperature of the wire drawing process in the glass fiber forming process:

Further, in Comparative Example 1, in the upper line range of the glass crystallization temperature zone (the crystallization range, 1255-930 ° C; strong crystallization range, 1245-980 ° C), under the condition of gradual cooling, in 10-31 minutes Inside, crystallization will begin. In large production, even if the bottom of the cooling section, the corners, or the glass area before molding, the heating device and the temperature measuring device are added, the heating time difference from the temperature point to the start of heating and the flow of the molten glass are also detected. Sexual instability, and easy to be in large production, because the crystallization rate is too fast, resulting in local crystallization, easy to make the product unqualified, and will not cause difficulties in the production of fiberglass.

Therefore, in Comparative Example 1, in the large production: even if the bottom portion, the corners of the cooling portion, or the glass liquid region before molding, the heating device and the temperature measuring device are added, the temperature is detected to start heating. The difference in heating time and the instability of the fluidity of the glass liquid are also easy to produce in large production, because the crystallization rate is too fast, local crystallization may be easily generated, or the drawing hole may be blocked, or the product may be unqualified, and the production may be caused. Difficulties in fiberglass.

From the disclosure of the defects of Comparative Example 1 and Comparative Example 2, the technical solutions of the two ends of the prior art [1].[2].[3] are outside the scope of the technical solution of the present invention: The new [a. low crystallization rate] material properties found in the present invention; the known compounds [b. the difference in thermal expansion coefficient between high temperature regions] and [c. aluminum at low viscosity and high aluminum content, The properties of the co-melt of silicon, calcium, and magnesium] also do not produce the various unexpected technical effects of the present invention.

Review

The invention mainly belongs to a new use invention of a chemical product;

As can be seen from the foregoing ten embodiments of the present invention, the present invention has found a new [a. low crystallization temperature] material property - [the highest point of the crystallization range, which can be lower than the viscosity temperature of 10 ^2.5 (Pa·s). Properties] and [low crystallization rate] material properties; substantial improvement and improvement of known compounds [b. difference in thermal expansion coefficient in high temperature region] and [c. high softening point];

These properties can be utilized to produce the various unexpected technical effects of the present invention:

[1] In order to make the present invention, there are [low viscosity temperature properties] and [aluminum, silicon, calcium, magnesium eutectic properties], ultra-high aluminum glass fibers with high fracture strength characteristics, especially in large production The technical difficulty of crystallization is difficult; the technical effect of the large-scale production of normal enamel quality can be achieved.

On the other hand, if these new properties are not found, it is impossible to overcome the technical difficulties in large-scale production, and the goal of performing large-scale production with normal defects can not be achieved. There is no technical effect that can't be expected.

The present invention finds a new [a. low crystallization temperature] material property - [the highest point of the crystallization range, the property of the viscosity temperature below 10 ^2.5 (Pa·s)] and the [low crystallization rate] material properties Substantial improvement and improvement of known compounds [b. difference in thermal expansion coefficient in high temperature zone] and [c. high softening point];

These properties can be utilized to produce various unexpected technical effects of the present invention, which are not clear in common knowledge and cannot be inferred from common sense.

In the new use of fiberglass:

The new [low crystallization temperature property] of the product discovered in the above new use of the glass fiber of the present invention and [Low crystallization rate] material properties; can not be judged by the 'chemical products, whether new products or known products, whose performance is inherent to the product itself', to be easily recognized by those skilled in the art, It is a conclusion that can be inferred; to deny the use of this chemical product invention, the substantial advancement and creativity in the application of fiberglass.

Because the use of this chemical product was discovered in the new use of glass fiber, a new [low crystallization temperature property: the highest point of the crystallization range, which can be lower than 10 ^2.5 (Pa·s) viscosity temperature, was found for the newly discovered product. The nature of the material] and the [low crystallization rate] material properties are not clear in common knowledge and cannot be inferred from common sense;

Moreover, due to the use of this chemical product in glass fiber applications, the use of these new properties, to obtain unexpected technical effects:

It is also unclear in common sense that cannot be inferred from common sense. The nature of these new discoveries And produced unexpected technical effects. They have not been disclosed by all the prior art.

Therefore, it should be judged that the technical solution of claim 1 of the present invention and all the technical solutions of the dependent claims of the present invention have substantial progress and creativity in the new use of glass fiber.

Moreover, the product discovered by the present invention has a new [low crystallization temperature property: the highest point of the crystallization range, a property lower than a viscosity temperature of 10 ^2.5 (Pa·s)] and a [low crystallization rate] material property; One of the properties of the product is the new property of the product found, or a substantial improvement and improvement of the known properties; and as long as one of these new properties is utilized, any of the specifications is produced to improve product performance, Or the quality of the pass rate, or the unexpected technical effect of increasing the yield; the invention should be judged to be substantially progressive and inventive.

The present invention finds substantial product properties in the new use of glass fibers and thus produces unexpected technical effects. Both are technical effects that produce changes in "quality" and "quantity". It cannot be speculated in advance and cannot be predicted. It is not clear in common sense and cannot be inferred from common sense.

It is shown that the solution of the present invention is non-obvious, has outstanding substantive features and significant technological progress, and is creative.

And this new product nature and non-obvious technical effects. If it is impossible to speculate, predict and reason in advance, and overcome the technical bias of traditional fiberglass technology, it solves the above-mentioned major problems that people are eager to solve in the industry, indicating that the technical solution is non-obvious and has outstanding substantive features. , with significant technological advancement and creativity.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention. Any person skilled in the art of fiberglass technology may change or modify the equivalent embodiments by using the above-disclosed technical contents. Different requirements and performance implementation and preparation methods and glass fiber composites. It can be seen that, without departing from the technical content of the present invention, especially the substantive content of the claims, according to the technical essence of the present invention, the application of a low crystallization temperature, a low crystallization rate, and an ultra-high alumina glass fiber in the above embodiments. Any simple modifications, equivalent changes and modifications are still within the scope of the technical solutions of the present invention.

Claims

The invention relates to a low crystallization temperature, a low crystallization rate, and an ultra-high alumina glass fiber, characterized in that the alumina content is 21%--39% and the sodium oxide content is 0.01-16% by weight percentage. The content of magnesium oxide is 7% to -20%, the content of silicon oxide is 2.61 to 4.8 times that of calcium oxide, and the content of calcium oxide is 1, 0-1, and 8 times that of magnesium oxide.
The invention relates to a high softening point, a low difference of a thermal expansion coefficient in a high temperature region, a low crystallization rate, an ultra-high aluminum medium and a low alkali, and a heat resistant glass fiber, characterized in that the alumina content thereof is 21%-25% or 25.1-39%, the silica content is 2.61-4.09 times or 3.61-4.09 times or 4.1-4.8 times of the calcium oxide content.
The use of a low crystallization temperature, a low crystallization rate, and an ultra-high alumina glass fiber according to claim 1, wherein the nominal diameter of the glass fiber is within 5 micrometers to 13 micrometers, and the deviation of the diameter of the glass fiber is Within ±15% of the nominal diameter.
According to claim 1, a method for preparing a high softening point, a low difference in thermal expansion coefficient of a high temperature region, a low crystallization rate, and an ultrahigh aluminum low alkali heat resistant glass fiber having a nominal diameter of 5 Within micron to 13 microns, the deviation of the diameter of the glass fiber is within ±15% of the nominal diameter, which is characterized by:

Step 1. The raw material of various components required for the glass fiber formulation according to claim 1, after being mixed and stirred, melted at a melting temperature corresponding to each glass fiber formulation to form a glass fiber liquid having a predetermined viscosity, and then homogenized. , clarify, discharge bubbles, forming a flowable melt;

In step 2, the molten glass fiber body formed in the step 1 is drawn at a high speed through a plurality of holes of a porous refractory metal plate to form a glass fiber, and the glass fiber product can be obtained by cooling.
A glass fiber composite material characterized by comprising

Plastic substrate, and

The use of a low crystallization temperature, low crystallization rate, ultra-high alumina glass fiber according to claim 1 embedded in a plastic substrate.
A glass fiber composite material blade for wind power, characterized by comprising

Plastic substrate, and

a composite material made of a low crystallization temperature, a low crystallization rate, and an application of an ultra-high alumina glass fiber according to claim 1 embedded in a plastic substrate;

Wind blade composition: glass fiber composite wind blade leaf shell; glass fiber composite wind blade leaf root; glass fiber composite wind blade structure girders.
Glass fiber composite wind blade leaf shell characterized by

Plastic substrate, and

A composite of a composite material produced by the application of a low crystallization temperature, a low crystallization rate, and an ultra-high alumina glass fiber embedded in a plastic substrate as described in claim 1.
Glass fiber composite wind blade blade root, characterized in that the composite wind blade comprises

Plastic substrate, and

A composite material produced by the application of a low crystallization temperature, a low crystallization rate, and an ultra-high alumina glass fiber according to claim 1 embedded in a plastic substrate.
Glass fiber composite wind blade structure beam characterized by

Plastic substrate, and

A composite girders made of a composite material produced by the application of a low crystallization temperature, a low crystallization rate, and an ultra-high alumina glass fiber according to claim 1 embedded in a plastic substrate.
A glass fiber composite hull structure characterized by:

Plastic substrate, and

A hull structure made of a composite material produced by the application of a low crystallization temperature, a low crystallization rate, and an ultra-high alumina glass fiber according to claim 1 embedded in a plastic substrate.
A fiberglass composite aircraft housing structure characterized by comprising

Plastic substrate, and

An aircraft housing structure made of a composite material produced by the application of a low crystallization temperature, a low crystallization rate, and an ultra-high alumina glass fiber according to claim 1 embedded in a plastic substrate.
A wind power generation device comprising: a plastic substrate, and

a composite material made of a low crystallization temperature, a low crystallization rate, and an application of an ultra-high alumina glass fiber embedded in a plastic substrate; the phoenix electric blade; the bearing; the generator; Wind tower pillars.
A watercraft characterized by comprising a plastic substrate, and

a hull structure made of a composite material produced by the application of a low crystallization temperature, a low crystallization rate, and an ultra-high alumina glass fiber embedded in a plastic substrate; a power plant; a cockpit; Ship deck.
An aircraft characterized by comprising a plastic substrate, and

A composite material made of a composite material produced by the application of a low crystallization temperature, a low crystallization rate, and an ultra-high alumina glass fiber embedded in a plastic substrate; a power device; a control system Device.
An aircraft characterized by comprising a plastic substrate, and

A composite material produced by the application of a low crystallization temperature, a low crystallization rate, and an ultra-high alumina glass fiber embedded in a plastic substrate; the aircraft outer casing structure; the power device; the wing ; driving control system device.
a chemical or petroleum pipe characterized by comprising a plastic matrix, and

A chemical or petroleum pipe made of a composite material produced by the application of a low crystallization temperature, a low crystallization rate, and an ultra-high alumina glass fiber according to claim 1 embedded in a plastic substrate.
A high performance fiberglass composite housing automobile comprising:

Characterized by: comprising a plastic matrix, and

a composite material produced by the application of a low crystallization temperature, a low crystallization rate, and an ultra-high alumina glass fiber according to claim 1 embedded in a plastic substrate;

Automotive window structure;

And power unit; instrument panel; direction controller; car shell; car chassis; car brakes;