CN107964733B - Glass fiber cloth composite sandwich felt and processing method thereof - Google Patents
Glass fiber cloth composite sandwich felt and processing method thereof Download PDFInfo
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- CN107964733B CN107964733B CN201711161517.9A CN201711161517A CN107964733B CN 107964733 B CN107964733 B CN 107964733B CN 201711161517 A CN201711161517 A CN 201711161517A CN 107964733 B CN107964733 B CN 107964733B
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
- D04H1/542—Adhesive fibres
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
- B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/20—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
- D03D15/242—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads inorganic, e.g. basalt
- D03D15/267—Glass
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04C—BRAIDING OR MANUFACTURE OF LACE, INCLUDING BOBBIN-NET OR CARBONISED LACE; BRAIDING MACHINES; BRAID; LACE
- D04C1/00—Braid or lace, e.g. pillow-lace; Processes for the manufacture thereof
- D04C1/02—Braid or lace, e.g. pillow-lace; Processes for the manufacture thereof made from particular materials
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2101/00—Inorganic fibres
- D10B2101/02—Inorganic fibres based on oxides or oxide ceramics, e.g. silicates
- D10B2101/06—Glass
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Laminated Bodies (AREA)
- Inorganic Fibers (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
Abstract
The invention relates to the technical field of textile, in particular to a glass fiber cloth composite sandwich felt, and also particularly relates to a processing method of the glass fiber cloth composite sandwich felt; the invention comprises a glass fiber cloth layer, a diversion sandwich layer and a chopped strand layer which are arranged from top to bottom in sequence; the glass fiber cloth layer, the diversion sandwich layer and the short-cut yarn layer are subjected to stitch bonding through stitch bonding yarns; in the invention, a three-layer mode of a glass fiber cloth layer, a diversion sandwich layer and a chopped strand layer which are sequentially arranged from top to bottom is adopted, the diversion sandwich layer mainly plays a role of hollow diversion, the glass fiber cloth layer is used as a basic enhancement layer, and the chopped strand layer and the glass fiber cloth layer clamp the diversion sandwich layer together, so that the invention meets the requirements of high permeability and good resin wettability; the processing method of the glass fiber cloth composite sandwich felt is simple and rapid, and can be used for batch processing production.
Description
Technical Field
The invention relates to the technical field of spinning, in particular to a glass fiber cloth composite sandwich felt, and further particularly relates to a processing method of the glass fiber cloth composite sandwich felt.
Background
The fiber reinforced material is a novel composite material and has the excellent performances of light weight, high strength, corrosion resistance, heat preservation, insulation, sound insulation, water resistance and the like; the traditional forming process is a mold-opening manual process, and has the advantages of low production efficiency, high cost, serious environmental pollution, great harm to human bodies and poor product performance: the combination effect of the resin and the fiber is poor, various defects such as air bubbles, dry spots and the like are easily generated, and the mechanical property of the product is seriously influenced.
With the high requirements of society on energy conservation, consumption reduction, work efficiency improvement, environmental friendliness and the like, the continuous development of a molding process of a resin-based composite material is promoted, particularly, in recent years, closed mold molding processes such as a resin transfer molding process (RTM), a vacuum assisted resin transfer molding process (VARTM), a resin impregnation molding process (SCRIMP) and the like which are developed at high speed are provided with higher requirements on a fiber reinforced material, wherein the most important factor is that a fabric with high permeability and good resin wettability is adopted as far as possible, a hollow guide fiber type reinforced material is required, and the requirements on high permeability and good resin wettability can be met. Disclosure of Invention
In order to overcome the defects, the invention aims to provide the glass fiber cloth composite sandwich felt which adopts a three-layer mode of a glass fiber cloth layer, a flow guide sandwich layer and a chopped strand layer which are sequentially arranged from top to bottom, can well perform hollow flow guide, and meets the requirements of high permeability and good resin wettability; the processing method of the glass fiber cloth composite sandwich felt is simple and rapid, and can be used for batch processing production.
The technical scheme for solving the technical problem is as follows:
a glass fiber cloth composite sandwich felt comprises a glass fiber cloth layer, a flow guide sandwich layer and a chopped strand layer which are sequentially arranged from top to bottom; the glass fiber cloth layer, the diversion sandwich layer and the short-cut yarn layer are subjected to stitch bonding through stitch bonding yarns.
As an improvement of the invention, the diversion sandwich layer is composed of a sandwich felt formed by chemically bonding organic fibers.
As a further improvement of the invention, the chopped yarn layer is woven by chopped yarns of glass fiber cloth.
As a further improvement of the invention, the glass fiber cloth layer is formed by folding a plurality of glass fiber cloths.
As a further improvement of the invention, the glass fiber cloth comprises 30-40% of silicon dioxide, 20-30% of alumina, 10-15% of calcium oxide, 3-5% of boron oxide, 1-3% of magnesium oxide, 2-5% of sodium oxide, 3-6% of titanium oxide, 1-3% of lithium oxide, 2-8% of zinc oxide and 5-8% of silicon carbide according to weight ratio.
As a further improvement of the invention, the glass fiber cloth comprises 30% of silicon dioxide, 30% of aluminum oxide, 12% of calcium oxide, 5% of boron oxide, 2% of magnesium oxide, 4% of sodium oxide, 5% of titanium oxide, 1% of lithium oxide, 5% of zinc oxide and 6% of silicon carbide according to weight ratio.
As a further improvement of the invention, the sandwich felt comprises, by weight, 30% -50% of ceramic fibers, 5% -8% of red copper fibers, 6% -9% of alumina fibers, 20% -35% of carbon fibers, 5% -10% of viscose fibers, 2% -5% of antimony sulfide, 1% -3% of zinc oxide and 1% -3% of organic silicon modified phenolic resin.
As a further improvement of the invention, the sandwich felt comprises 30% ceramic fibers, 8% red copper fibers, 8% alumina fibers, 35% carbon fibers, 8% viscose fibers, 5% antimony sulfide, 3% zinc oxide and 3% silicone modified phenolic resin by weight.
A processing method of a glass fiber cloth composite sandwich felt comprises the following steps:
step S01, weaving the glass fiber cloth chopped yarns to form chopped yarn layers;
step SO2, chemically bonding organic fibers to form a sandwich felt to form a diversion sandwich layer, and placing the diversion sandwich layer on the chopped strand layer;
step SO3, folding a plurality of glass fiber cloth together to form a glass fiber cloth layer, and placing the glass fiber cloth layer on the diversion sandwich layer;
and step S04, stitching the glass fiber cloth layer, the diversion sandwich layer and the chopped strand layer through stitching threads.
As a further improvement of the present invention, in step SO2, after the low-melting point fibers are homogeneously blended in the synthetic fibers, the sandwich felt is formed by carding, lapping, drawing, and chemical bonding.
In the invention, a three-layer mode of a glass fiber cloth layer, a diversion sandwich layer and a chopped strand layer which are sequentially arranged from top to bottom is adopted, the diversion sandwich layer mainly plays a role of hollow diversion, the glass fiber cloth layer is used as a basic enhancement layer, and the chopped strand layer and the glass fiber cloth layer clamp the diversion sandwich layer together, so that the invention meets the requirements of high permeability and good resin wettability; the processing method of the glass fiber cloth composite sandwich felt is simple and rapid, and can be used for batch processing production.
Drawings
For ease of illustration, the present invention is described in detail by the following preferred embodiments and the accompanying drawings.
FIG. 1 is a schematic structural view of the present invention;
reference numerals: 1-glass fiber cloth layer, 11-warp, 12-weft, 2-diversion sandwich layer and 3-chopped strand layer.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
As shown in fig. 1, the glass fiber cloth composite sandwich mat of the present invention comprises a glass fiber cloth layer 1, a flow guiding sandwich layer 2 and a chopped strand layer 3, which are sequentially arranged from top to bottom.
In the invention, the glass fiber cloth layer 1, the diversion sandwich layer 2 and the chopped strand layer 3 are stitch-bonded through stitch-bonding yarns.
In the invention, a three-layer mode of a glass fiber cloth layer 1, a diversion sandwich layer 2 and a chopped strand layer 3 which are sequentially arranged from top to bottom is adopted, the diversion sandwich layer 2 mainly plays a role of hollow diversion, the glass fiber cloth layer 1 is used as a basic enhancement layer, and the chopped strand layer 3 and the glass fiber cloth layer 1 clamp the diversion sandwich layer 2 together, so that the invention meets the requirements of high permeability and good resin wettability.
In one embodiment of the present invention, the flow guiding sandwich layer 2 is composed of a sandwich felt formed by chemically bonding organic fibers; further, the invention provides an implementation mode of the sandwich felt, wherein the sandwich felt comprises, by weight, 30% -50% of ceramic fibers, 5% -8% of red copper fibers, 6% -9% of alumina fibers, 20% -35% of carbon fibers, 5% -10% of viscose fibers, 2% -5% of antimony sulfide, 1% -3% of zinc oxide and 1% -3% of organic silicon modified phenolic resin.
The ceramic fiber, also known as aluminum silicate fiber, is a novel light refractory material, has the advantages of light volume weight, high temperature resistance, good thermal stability, low thermal conductivity, small heat capacity, good mechanical vibration resistance, small thermal expansion, good heat insulation performance and the like, and can be made into products such as an aluminum silicate fiber board, an aluminum silicate fiber felt, an aluminum silicate fiber rope, an aluminum silicate fiber blanket and the like through special processing; the novel sealing material has the characteristics of low high-temperature resistance and heat conductivity coefficient, light volume weight, long service life, high tensile strength, good elasticity, no toxicity and the like, is a novel material for replacing asbestos, and is widely used for heat preservation on heat energy equipment of metallurgy, electric power, machinery and chemical industry; in the invention, the ceramic fiber is used as a basic filler, so that the sandwich felt is mainly lighter in weight, resistant to high temperature, enhanced in thermal stability and low in thermal conductivity.
The red copper fiber has the low hardness and wear resistance of the metal simple substance copper; in the invention, the red copper fiber is used as an auxiliary filler, so that the sandwich felt is mainly wear-resistant.
The alumina fiber is one of the super light high temperature heat insulating materials, it adopts high technology 'sol-gel' method, soluble aluminium and silicate are made into colloidal solution with certain viscosity, the solution is spun into fiber blank body by high speed centrifugation, then through dehydration, drying and medium high temperature heat treatment crystallization, etc., it is transformed into Al-Si alumina polycrystalline fiber, its main crystal phase is mainly corundum phase and a small amount of mullite phase, the chemical component is Al2O395%+SiO25 percent, the fiber diameter is 3-7 um, the monofilament length is 10-150 mm, the appearance is white, smooth, soft and rich in elasticity, especially like absorbent cotton, the fiber material and the crystal material are integrated, the use temperature is 1450-1600 ℃, the melting point is 1840 ℃, the fiber material has better heat resistance stability, the thermal conductivity, the heating shrinkage and the heat capacity of the alumina fiber are lower, the long-term use temperature is 1300-1400 ℃, the fiber material has better chemical stability, and the fiber material can be used in acid environment, oxidizing atmosphere and reducing gasThe coating is used under the conditions of atmosphere and vacuum, has certain corrosion resistance to alkaline environment, and is easily corroded by lead vapor and vanadium pentoxide; in the invention, the alumina fiber is used as an auxiliary filler, so that the sandwich felt keeps good heat-resistant stability, the heat conduction is low, and the acid resistance and the oxidation resistance can be kept.
The carbon fiber is a novel fiber material of high-strength and high-modulus fiber with the carbon content of more than 95 percent; it is made up by stacking organic fibres of flake graphite microcrystals along the axial direction of fibre, and making carbonization and graphitization treatment so as to obtain the invented microcrystal graphite material. The carbon fiber has the characteristics of corrosion resistance and high modulus, not only has the intrinsic characteristic of a carbon material, but also has the soft processability of textile fiber, and is a new generation of reinforced fiber. The carbon fiber has the two characteristics of strong tensile resistance of the carbon material and soft processability of the fiber, and is a new material with excellent mechanical property; the carbon fiber has a tensile strength of about 2 GPa to 7GPa, a tensile modulus of about 200 GPa to 700GPa, and a density of about 1.5 g/cc to 2.0 g/cc, which is mainly determined by the carbonization temperature except the structure of the precursor; generally, the density can reach 2.0 g per cubic centimeter by graphitization treatment at a high temperature of 3000 ℃, and the weight of the graphite is very light, the specific weight of the graphite is lighter than that of aluminum and less than 1/4 of steel, and the specific strength of the graphite is 20 times of that of iron; the thermal expansion coefficient of the carbon fiber is different from that of other fibers, and the carbon fiber has the characteristic of anisotropy; the specific heat capacity of carbon fibres is generally 7.12, the thermal conductivity decreases with increasing temperature with negative values parallel to the fibre direction (0.72 to 0.90) and positive values perpendicular to the fibre direction (32 to 22), the specific resistance of carbon fibres is related to the type of fibre, the high modulus at 25 ℃ is 775, and the high strength carbon fibres are 1500 per centimetre, which gives carbon fibres the highest specific strength and specific modulus of all high performance fibres; the carbon fiber has the characteristics of high strength, high modulus, low density, small linear expansion coefficient and the like in physical properties. The carbon fiber has the characteristics of common carbon materials, has obvious anisotropy and softness in appearance, can be processed into various fabrics, has high strength along the fiber axis direction due to small specific gravity, and has more than 3 times of Young modulus (representing the physical quantity of tensile strength or compression strength of a material within the elastic limit) compared with the traditional glass fiber; compared with Kevlar fiber, the Young modulus is about 2 times of that of Kevlar fiber, the strength and modulus of the carbon fiber are reduced along with the increase of the porosity, and the porosity has great influence on the shearing strength, the bending strength and the bending modulus between layers; the decrease in tensile strength with increasing porosity is relatively slow; the tensile modulus is less affected by the porosity. The carbon fiber in the invention enables the sandwich felt to have the functions of corrosion resistance, high modulus and strong tensile resistance, and the sandwich felt is easy to stretch.
Viscose fiber belongs to cellulose fiber, which is prepared by using natural fiber (wood fiber, cotton linter) as a raw material, preparing soluble cellulose xanthate through the procedures of alkalization, aging, sulfonation and the like, dissolving the soluble cellulose xanthate in dilute alkali liquor to prepare viscose, and performing wet spinning; by adopting different raw materials and spinning processes, common viscose fibers, high wet modulus viscose fibers, high strength viscose fibers and the like can be obtained respectively. Common viscose fibers have common physical and mechanical properties and chemical properties, and are divided into cotton types, wool types and filament types, commonly called artificial cotton, artificial wool and rayon; the high-wet-modulus viscose fiber has higher polymerization degree, strength and wet modulus, the fiber can bear the load of 22.0CN per unit linear density under a wet state, the wet elongation under the load is not more than 15 percent, and the high-wet-modulus viscose fiber mainly comprises a high-strength fiber and has higher strength and fatigue resistance; the viscose fiber has good moisture absorption, the moisture regain is about 13 percent under the common atmospheric condition, the viscose fiber is obviously expanded after moisture absorption, the diameter is increased by 50 percent, and therefore the fabric feels hard after being soaked in water and has large shrinkage; in the invention, the viscose fiber is used as an auxiliary filler, and the sandwich felt is mainly provided with higher strength and moisture absorption.
Antimony sulfide is used as a vulcanizing agent in the invention, and mainly makes linear molecules of the sandwich felt form a three-dimensional net structure, so that the plasticity of the sandwich felt is reduced, the elastic strength of the sandwich felt is increased, and the mechanical property of the sandwich felt is greatly improved.
Zinc oxide is an oxide of zinc, is poorly soluble in water, is soluble in acids and strong bases, is a white solid, so called zinc white, and can be obtained by burning zinc or roasting zinc blende (zinc sulfide); in nature, zinc oxide is the main component of the mineral zincite, although there are two manufacturing methods for artificial zinc oxide: is prepared by oxidizing or baking zinc ore with pure zinc; zinc oxide has applications as an additive in a variety of materials and products, including plastics, ceramics, glass, cement, lubricants, paints, ointments, adhesives, gap-filling materials, pigments, foods (zinc replenishers), batteries, ferrite materials, flame retardant materials, medical first aid bandages, and the like; in the invention, zinc oxide is used as a vulcanization activator, and can fully play a role in promoting vulcanization and improve the performance of the sandwich felt.
The organic silicon modified phenolic resin has the characteristics of phenolic resin and simultaneously makes up the defects of phenolic resin, such as high curing temperature, long curing time, inconvenience for large and bulky construction, poor adhesion to a bottom layer, poor organic solvent resistance, poor mechanical strength of a paint film at high temperature and the like; in the invention, the organic silicon modified phenolic resin is used as a curing agent, so that the sandwich felt has better high temperature resistance and organic solvent resistance.
Still further, the present invention provides an embodiment of the sandwich felt comprising 30% ceramic fibers, 8% red copper fibers, 8% alumina fibers, 35% carbon fibers, 8% viscose fibers, 5% antimony sulfide, 3% zinc oxide and 3% silicone modified phenolic resin by weight.
Still further, the present invention provides another embodiment of a sandwich felt comprising, by weight, 50% ceramic fibers, 5% red copper fibers, 6% alumina fibers, 30% carbon fibers, 5% viscose fibers, 2% antimony sulfide, 1% zinc oxide, and 1% silicone modified phenolic resin.
Still further, the present invention provides another embodiment of a sandwich felt comprising, by weight, 40% ceramic fibers, 8% red copper fibers, 9% alumina fibers, 23% carbon fibers, 10% viscose fibers, 5% antimony sulfide, 3% zinc oxide, and 2% silicone modified phenolic resin.
In the invention, the chopped yarn layer 3 is woven by glass fiber cloth chopped yarns.
In the invention, the glass fiber cloth layer 1 is formed by folding a plurality of glass fiber cloths, and the glass fiber cloths are woven by warps and wefts.
The invention provides an implementation mode of glass fiber cloth, wherein the glass fiber cloth comprises 30-40 wt% of silicon dioxide, 20-30 wt% of aluminum oxide, 10-15 wt% of calcium oxide, 3-5 wt% of boron oxide, 1-3 wt% of magnesium oxide, 2-5 wt% of sodium oxide, 3-6 wt% of titanium oxide, 1-3 wt% of lithium oxide, 2-8 wt% of zinc oxide and 5-8 wt% of silicon carbide; the silicon dioxide can reduce the dielectric loss of the glass fiber cloth; boron oxide, magnesium oxide and sodium oxide are used as cosolvents, so that the viscosity is reduced, the water resistance is better, the mechanical property is improved, the tensile strength is better, and the water resistance and the wear resistance are enhanced; the zinc oxide can reduce the expansion coefficient and improve the high temperature resistance.
Silica is an acidic oxide, and silicic acid is used as a hydrate; the silicon dioxide is insoluble in water and acid but soluble in hydrofluoric acid and hot concentrated phosphoric acid and can react with molten alkali; silicon dioxide is widely present in nature and constitutes, together with other minerals, a rock, natural silicon dioxide called silica, representing about one-twelve percent of the mass of the crust, in both crystalline and amorphous forms; the silica is used as a main filler, the glass fiber cloth is insoluble, and the silica has wide application and low cost.
Alumina, also known as alumina, is a compound of aluminum and oxygen with the molecular formula Al2O3Commonly known as "alumina", is a white amorphous powder; the solid is a white solid which is insoluble in water, is neutral oxide, is odorless, tasteless, extremely hard, and amphoteric oxide which is easy to absorb moisture and not deliquescent (burned and not absorbed by moisture), can be dissolved in inorganic acid and alkaline solution, is almost insoluble in water and non-polar organic solvent, and has a melting point of about 2000 ℃; in the present invention, alumina is one of the main fillers, and functions to impart oxidation resistance and refractoriness to the glass fiber cloth.
Calcium oxide is used in the present invention primarily as a desiccant to absorb moisture.
Boron oxide is a colorless glassy solid that can dissolve many alkaline metal oxides during melting to produce glassy borates and metaborates (glasses) with characteristic colors for the production of elemental boron and fine boron compounds; in the present invention, boron oxide acts as a desiccant together with calcium oxide.
Magnesium oxide is a white amorphous powder, which is odorless, tasteless, and non-toxic; the catalyst is in a slightly alkaline reaction, the pH value of a saturated aqueous solution is 10.3, but the catalyst is very easy to dissolve in dilute acid and is very slightly soluble in pure water, the solubility of the catalyst is increased due to the existence of carbon dioxide, and the catalyst is a mild catalyst and is insoluble in ethanol; in the present invention, magnesium oxide acts as a catalyst and functions catalytically.
The sodium oxide is white amorphous sheet or powder, and is sensitive to humidity; melting in dark red and hot state, and performing violent chemical combination reaction when meeting water to form sodium hydroxide; in the present invention, sodium oxide is used as the polymerization agent.
Titanium dioxide is a white solid or powdery amphoteric oxide, is a white inorganic pigment, has no toxicity, optimal opacity, optimal whiteness and brightness, is considered to be a white pigment with the best performance in the world at present, has strong adhesion to titanium white, is not easy to chemically change, and is always snow white; titanium dioxide is stable in nature, is used in large quantities as a white pigment in paints, has good hiding power, is similar to white lead, but does not turn black like white lead; it has the same persistence as zinc white; in the present invention, titanium dioxide acts as a coloring agent, and functions as a bleaching agent.
Lithium oxide is a white powder or a hard shell solid, an ionic compound thereof; in the present invention, lithium oxide plays a role in corrosion resistance.
Zinc oxide is an oxide of zinc, is insoluble in water, and is soluble in acid and strong base; it is a white solid, so called zinc white, which can be obtained by burning zinc or roasting sphalerite (zinc sulfide); in nature, zinc oxide is the main component of the mineral zincite, although there are two manufacturing methods for artificial zinc oxide: the zinc oxide is prepared by oxidizing or baking zinc ore with pure zinc, and the zinc oxide has application in various materials and products as an additive; in the present invention, zinc oxide is used as the thickener.
The silicon carbide crystal is a colorless transparent crystal, the industrial silicon carbide is light yellow, green, blue or even black due to different types and contents of impurities, the transparency is different according to the purity, the silicon carbide crystal structure is divided into hexagonal or rhombohedral α -SiC and cubic β -SiC (called cubic silicon carbide), the silicon carbide is stable in chemical property, high in heat conductivity coefficient, small in thermal expansion coefficient and good in wear resistance, and the silicon carbide is enhanced in wear resistance.
The present invention provides one embodiment of a glass fiber cloth comprising, by weight, 30% silica, 30% alumina, 12% calcium oxide, 5% boron oxide, 2% magnesium oxide, 4% sodium oxide, 5% titanium oxide, 1% lithium oxide, 5% zinc oxide, and 6% silicon carbide.
The invention provides another embodiment of a glass fiber cloth comprising, by weight, 40% silica, 22% alumina, 12% calcium oxide, 4% boron oxide, 1% magnesium oxide, 4% sodium oxide, 3% titanium oxide, 2% lithium oxide, 6% zinc oxide, and 6% silicon carbide.
The present invention provides yet another embodiment of a glass fiber cloth comprising, by weight, 35% silica, 25% alumina, 15% calcium oxide, 3% boron oxide, 3% magnesium oxide, 3% sodium oxide, 6% titanium oxide, 3% lithium oxide, 2% zinc oxide, and 5% silicon carbide.
The invention provides a processing method of a glass fiber cloth composite sandwich felt, which comprises the following steps:
step S01, weaving the glass fiber cloth chopped yarns to form chopped yarn layers;
step SO2, chemically bonding organic fibers to form a sandwich felt to form a diversion sandwich layer, and placing the diversion sandwich layer on the chopped strand layer;
step SO3, folding a plurality of glass fiber cloth together to form a glass fiber cloth layer, and placing the glass fiber cloth layer on the diversion sandwich layer;
and step S04, stitching the glass fiber cloth layer, the diversion sandwich layer and the chopped strand layer through stitching threads.
In step SO2, after the low-melting-point fibers are uniformly blended in the synthetic fibers, the sandwich felt is formed by carding, lapping, drafting and chemical bonding.
The processing method is simple and quick, and can be used for batch processing production.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (3)
1. The glass fiber cloth composite sandwich felt is characterized by comprising a glass fiber cloth layer, a flow guide sandwich layer and a chopped strand layer which are sequentially arranged from top to bottom; the glass fiber cloth layer, the diversion sandwich layer and the chopped strand layer are stitch-bonded through stitch-bonding threads, and the diversion sandwich layer is composed of a sandwich felt formed by chemical fibers through chemical bonding; the chopped strand layer is woven by glass fiber chopped strands; the glass fiber cloth layer is formed by folding a plurality of glass fiber cloths; the glass fiber cloth comprises 30-40 wt% of silicon dioxide, 20-30 wt% of aluminum oxide, 10-15 wt% of calcium oxide, 3-5 wt% of boron oxide, 1-3 wt% of magnesium oxide, 2-5 wt% of sodium oxide, 3-6 wt% of titanium oxide, 1-3 wt% of lithium oxide, 2-8 wt% of zinc oxide and 5-8 wt% of silicon carbide; the sandwich felt which is a component of the diversion sandwich layer comprises 30% of ceramic fiber, 8% of red copper fiber, 8% of alumina fiber, 35% of carbon fiber, 8% of viscose fiber, 5% of antimony sulfide, 3% of zinc oxide and 3% of organic silicon modified phenolic resin by weight ratio.
2. The glass fiber cloth composite sandwich mat according to claim 1, wherein the glass fiber cloth comprises 30% silica, 30% alumina, 12% calcium oxide, 5% boron oxide, 2% magnesium oxide, 4% sodium oxide, 5% titanium oxide, 1% lithium oxide, 5% zinc oxide and 6% silicon carbide by weight.
3. The glass fiber cloth composite sandwich mat according to claim 1, characterized in that the processing method of the glass fiber cloth composite sandwich mat comprises the following steps: step S01, weaving the glass fiber chopped yarns to form chopped yarn layers; step SO2, chemically bonding chemical fibers to form a sandwich felt to form a diversion sandwich layer, and placing the diversion sandwich layer on the chopped strand layer; step SO3, folding a plurality of glass fiber cloth together to form a glass fiber cloth layer, and placing the glass fiber cloth layer on the diversion sandwich layer; step S04, stitching the glass fiber cloth layer, the diversion sandwich layer and the chopped strand layer through stitching threads;
in the step SO2, after the low-melting-point fibers are uniformly blended in the chemical fibers, the sandwich felt is formed through carding, lapping, drafting and chemical bonding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711161517.9A CN107964733B (en) | 2017-11-21 | 2017-11-21 | Glass fiber cloth composite sandwich felt and processing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711161517.9A CN107964733B (en) | 2017-11-21 | 2017-11-21 | Glass fiber cloth composite sandwich felt and processing method thereof |
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| CN107964733A CN107964733A (en) | 2018-04-27 |
| CN107964733B true CN107964733B (en) | 2020-06-19 |
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Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008266841A (en) * | 2007-04-23 | 2008-11-06 | Fujikoo:Kk | Firefighting clothing material |
| CN201189737Y (en) * | 2008-06-23 | 2009-02-04 | 常州市长海玻纤制品有限公司 | Fiberglas composite stitch-bonding felt |
| CN101555918B (en) * | 2009-01-25 | 2013-03-13 | 瑞阳汽车零部件（仙桃）有限公司 | High-performance organic fibre brake pad |
| CN201358361Y (en) * | 2009-02-19 | 2009-12-09 | 浙江联洋复合材料有限公司 | Sandwich composite felt |
| CN202937959U (en) * | 2012-10-26 | 2013-05-15 | 常州市润源经编运用工程技术研究中心有限公司 | Heat-insulating sandwich composite felt |
| CN203739362U (en) * | 2014-01-28 | 2014-07-30 | 常州众杰复合材料有限公司 | Sandwich stitched and knitted compound fabric structure |
| CN205130528U (en) * | 2015-07-30 | 2016-04-06 | 浙江联洋新材料股份有限公司 | Vacuum water conservancy diversion fabric |
| CN105859146A (en) * | 2016-04-07 | 2016-08-17 | 乌海市世环新型陶瓷建材有限公司 | High-strength glass fiber material block and preparation method thereof |
| CN107323010A (en) * | 2017-07-24 | 2017-11-07 | 常州天马集团有限公司（原建材二五三厂） | A kind of three-dimensional preforming composite fibre and its processing technology |
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