CN106188623A - A kind of composite reinforcing fiber and preparation technology thereof - Google Patents
A kind of composite reinforcing fiber and preparation technology thereof Download PDFInfo
- Publication number
- CN106188623A CN106188623A CN201610544950.XA CN201610544950A CN106188623A CN 106188623 A CN106188623 A CN 106188623A CN 201610544950 A CN201610544950 A CN 201610544950A CN 106188623 A CN106188623 A CN 106188623A
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- Prior art keywords
- reinforcing fiber
- composite reinforcing
- crystal whisker
- rock wool
- calcium carbonate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
- C08K9/06—Ingredients treated with organic substances with silicon-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/346—Clay
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/08—Oxygen-containing compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/10—Silicon-containing compounds
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
Abstract
The present invention provides a kind of composite reinforcing fiber material, it is characterised in that be made up of the raw material of following weight portion: ore deposit rock wool 50 80 parts, calcium carbonate crystal whisker 10 30 parts, attapulgite powder 1 10 parts, coupling agent 15 parts.Its preparation technology comprises the following steps: takes above-mentioned raw material, first ore deposit rock wool is carried out cutting and grinding；Add calcium carbonate crystal whisker, attapulgite powder mixed at high speed, mixed process adds silane coupler, obtains composite reinforcing fiber.Composite reinforcing fiber of the present invention easily disperses, and is difficult to conglomeration, relevant with adding attapulgite powder；Loss on ignition substantially reduces, and unit weight is less, relevant with adding inorganic crystal whisker；Therefore the present invention has an excellent fibre property: high intensity, polymolecularity, abrasion performance, high temperature resistant, the compatibility is good.Attapulgite powder is the characteristic mineral products in area, Xuyi, northern Suzhou, also promotes the efficient utilization of regions resources.The brake block sample prepared as reinforcing fiber using the present invention, coefficient of friction is highly stable, and brake oil is low, Heat stability is good, and wear rate is minimum；Illustrate that composite reinforcing fiber of the present invention can be used for the friction material that processability is excellent.
Description
Technical field
The invention belongs to fibrous material field, be specifically related to a kind of composite reinforcing fiber that can be used for manufacturing friction material,
Announce its composition and manufacture standby technique.
Background technology
In the vehicle accident caused because of the problem of vehicle own, the traffic accident that braking system faults causes reaches total number of accident
45%.For Brake for vehicle, it is desirable to it has high and stable brake force, relatively low wear rate, high and stable braking rub
Wipe coefficient.Therefore develop high performance vehicle Novel brake composite friction material particularly significant, the most day by day cause the attention of people.
Friction material is also called ternary complex, refers mainly to: reinforcing material, binding agent and friction auxiliary agent.Reinforcing material is
Refer to the reinforcing fiber of skeleton function: mineral-type such as rock wool, meerschaum, wollastonite, asbestos etc., metal class such as steel is fine, copper is fine, aluminum
Fine etc., organic such as cellulose, carbon fiber, glass, Dralon, nylon etc..Reinforcing material is selected mainly to consider enhancement
Energy, hardness, the mutual compatibility, specific surface area, noise etc..
In these reinforcing fibers inorfil especially rock wool fibers because of the factor consumptions such as price more, but at present pole the most
Being used alone the rock wool fibers reinforcing fiber as brake friction material less, composite reinforcing fiber is development trend.Composite strengthening
Fiber friction material, by " learning from other's strong points to offset one's weaknesses " compound between different fibers, can promote the collaborative work between different fibre fractionation
With, possess superior new capability or overcome the shortcoming of Single Fiber, being one of the important directions of friction enhancing material research, this kind of
Product extremely has DEVELOPMENT PROSPECT.
Have several composite reinforcing fiber in the market, exist expensive, shot content is high, bad dispersibility, enhancement
Can not be good etc. shortcoming, it is difficult to meet market demands.Therefore, in order to improve composite reinforcing fiber performance and reduce production cost, city
Field needs to develop the composite reinforcing fiber that a kind of performance is good, price is low.
Four kinds of materials involved in the present invention: ore deposit rock wool fibers, calcium carbonate crystal whisker, attapulgite powder, coupling agent.Ore deposit rock wool is fine
Fiber based on dimension.Calcium carbonate crystal whisker be a kind of with single crystal form growth needle-like, have uniform crosssection, complete profile,
Improve the fibrous material of internal structure, there is bigger specific surface area, high intensity, high-modulus, high tenacity, high-insulativity, wear-resisting
Consumption, high temperature resistant, acid and alkali-resistance, many excellent physicochemical properties such as anticorrosive, nontoxic, be the most wide novel of a kind of market prospect
Inorganic fibers, can be widely applied to the industries such as friction material, building materials, environmental project.Attapulgite is a kind of crystalloid layer chain
The clay mineral of the aqueous zeopan of shape structure, its crystal structure belongs to the transitional type of layer structure and duplex structure, crystal
Present threadiness, threadiness zoarium or needle-like.Due to microstructure, appearance and charge characteristics that itself is unique, attapulgite clay rod
Stone has many premium properties, such as unique dispersibility, colloidality, adsorptivity, high temperature resistant, resistance to acids and bases etc., thus by extensively
It is applied to the fields such as chemical industry, building materials, medicine, agricultural and environmental conservation.Xuyi Jiangsu occupies whole world attapulgite ore reserve first, accounts for
The 50% of whole world reserves, more than the 70% of whole nation gross reserves.
Therefore, for the composite reinforcing fiber of the good low cost of Development and Production performance, the present invention provides a kind of composite strengthening fine
The composition of dimension and preparation technology, can be as friction material and the raw material of encapsulant.By ore deposit rock wool fibers, calcium carbonate crystal whisker, recessed
Convex rod stone powder is combined, and is aided with coupling agent treatment, develops NEW TYPE OF COMPOSITE reinforcing fiber, to improving fibre property, overcoming bad dispersibility
Etc. defect, make full use of local mineral resources, positive economic benefit and social benefit can be produced.Have no that this four classes material is combined
For preparing the report of composite reinforcing fiber material.
Summary of the invention
In the presence of the technical problem to be solved avoids above-mentioned composite reinforcing fiber material prior art
Problem, it is provided that a kind of more excellent physicochemical property, based on the calcium carbonate whisker of ore deposit rock wool fibers, attapulgite powder, coupling
The complex fiber material of agent and preparation technology thereof.
The present invention solves technical problem and is adopted the technical scheme that:
Composite reinforcing fiber material characteristics of the present invention is: be made up of the raw material of following weight portion: ore deposit rock wool 50-80 part, carbonic acid
Calcium pyroborate 10-30 part, attapulgite powder 1-10 part, coupling agent 1-5 part.Rock wool is mainly passed through by following raw material in described ore deposit
High-temperature smelting pot carries out spinning and carries out surface reason generation, wherein basalt 10-30 part, diabase 50-70 part, limestone 5-15
Part, dolomite 5-10 part.Described calcium carbonate crystal whisker, its preparation technology comprises the following steps: fully digested by lime powder
After, add the sodium dihydrogen phosphate that concentration is 0.5-1mmoL/L and obtain suspension, be sufficiently stirred for and be heated to 90 DEG C, be passed through
Carbon dioxide carries out carbonation reaction, generates precipitation；After precipitation filtration, washing, dry at 100 DEG C.Described is recessed
Convex rod stone powder, selects the attapulgite clay ores type that attapulgite crystalline content is more than 50%, carbonate content is less than 10%,
Attapulgite clay is ground to 100-320 mesh.
The feature of composite reinforcing fiber material preparation process of the present invention is to comprise the following steps: take above-mentioned weight portion former
Material, first carries out cutting and grinding by ore deposit rock wool；Add calcium carbonate crystal whisker, attapulgite powder mixed at high speed, mixed process adds silicon
Alkane coupling agent, obtains composite reinforcing fiber.
Compared with the prior art, beneficial effects of the present invention is embodied in: inorganic crystal whisker-calcium carbonate crystal whisker have high intensity,
Abrasion performance, many excellent physicochemical properties such as high temperature resistant, anticorrosive, nontoxic, be ideal reinforcing fiber materials.Attapulgite
Stone powder has excellent adsorptivity and dispersive property, can prevent fibrous caking, overcome fiber dispersion difference defect；Attapulgite
Powder is the characteristic mineral products in area, Xuyi, northern Suzhou, also promotes the efficient utilization of regions resources.Ore deposit rock wool fibers and calcium carbonate crystal whisker,
Attapulgite powder is combined, and is aided with coupling agent bonding, forms the novel composite reinforcing fiber material with premium properties, create pre-
Technique effect unexpectedly: high intensity, polymolecularity, abrasion performance, high temperature resistant, the compatibility is good.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is further described.
Embodiment 1:
In the present embodiment, composite reinforcing fiber is made up of ore deposit rock wool, calcium carbonate crystal whisker, attapulgite powder, coupling agent.Preparation method
For:
1, preparation ore deposit rock wool fibers: carried out spinning by following raw material by high-temperature smelting pot and carry out surface reason generation,
Wherein 20 parts of basalt, diabase 60 parts, 10 parts of limestone, 10 parts of dolomite.
2, preparing calcium carbonate crystal whisker, its preparation technology comprises the following steps: after fully being digested by lime powder, adds dense
Degree obtains suspension for the sodium dihydrogen phosphate of 0.5mmoL/L, is sufficiently stirred for and is heated to 90 DEG C, be passed through carbon dioxide
Carry out carbonation reaction, generate precipitation；After precipitation filtration, washing, dry at 100 DEG C.
3, preparation attapulgite powder: select attapulgite crystalline content more than 50%, concavo-convex less than 10% of carbonate content
Rod stone clay minerals type, is ground to 200 mesh by attapulgite clay.
4, ore deposit rock wool 70 parts, calcium carbonate crystal whisker 20 parts, attapulgite powder 5 parts, silane coupler 5 parts are taken.First by ore deposit rock wool
Carry out cutting and grinding；Add calcium carbonate crystal whisker, attapulgite powder mixed at high speed, mixed process adds silane coupler, i.e.
Obtain composite reinforcing fiber.
Embodiment 2:
In the present embodiment, composite reinforcing fiber is made up of ore deposit rock wool, calcium carbonate crystal whisker, attapulgite powder, coupling agent.Preparation method
For:
1, preparation ore deposit rock wool fibers: carried out spinning by following raw material by high-temperature smelting pot and carry out surface reason generation,
Wherein 30 parts of basalt, diabase 50 parts, 15 parts of limestone, 5 parts of dolomite.
2, preparing calcium carbonate crystal whisker, its preparation technology comprises the following steps: after fully being digested by lime powder, adds dense
Degree obtains suspension for the sodium dihydrogen phosphate of 1mmoL/L, is sufficiently stirred for and is heated to 90 DEG C, be passed through carbon dioxide and enter
Row carbonation reaction, generates precipitation；After precipitation filtration, washing, dry at 100 DEG C.
3, preparation attapulgite powder: select attapulgite crystalline content more than 50%, concavo-convex less than 10% of carbonate content
Rod stone clay minerals type, is ground to 100 mesh by attapulgite clay.
4, ore deposit rock wool 60 parts, calcium carbonate crystal whisker 30 parts, attapulgite powder 9 parts, silane coupler 1 part are taken.First by ore deposit rock wool
Carry out cutting and grinding；Add calcium carbonate crystal whisker, attapulgite powder mixed at high speed, mixed process adds silane coupler, i.e.
Obtain composite reinforcing fiber.
The composite reinforcing fiber material prepared in order to top method, is analyzed detection and Test of Friction.This is presented herein below
The technical specification of invention and experimental data:
The technology of the present invention index is as follows, and result shows, compared with the rock wool fibers of single ore deposit, composite reinforcing fiber of the present invention easily divides
Dissipate, be difficult to conglomeration, may be relevant with adding attapulgite powder；Loss on ignition substantially reduces, and unit weight is less, may be with the inorganic crystalline substance of interpolation
Must be relevant.Illustrate that composite reinforcing fiber of the present invention has excellent fibre property.
According to the form below formula prepares truck drum-type brake pad sample.Composite reinforcing fiber of the present invention, resin, filler are thrown
Enter batch mixer, discharging after mixing 15-20 minute.Through hot-forming, heat treatment, grind and be processed into finished product.Hot-forming: batch mixing
Suppressing in 5 DEG C of 160 soil, use the briquetting pressure of 20-30Mpa, the dwell time is 8-l Omin.During pressurize, every
2-3min must open mould venting, then matched moulds pressurization, obtains semi-finished product.Heat treatment: the semi-finished product of this sample used within half an hour
It is warmed up to 150 DEG C, is incubated 12 hours, then, with stove cooling down, obtains finished product.
Truck drum-type brake pad (component proportioning)
| Component | Proportioning (%) |
| Composite reinforcing fiber of the present invention | 20—35 |
| Phenol-formaldehyde resin modified | 15—20 |
| Frictional property regulator | 20—40 |
| Antifriction material | 10—15 |
The test of brake block friction and wear behavior is carried out on fixed speed fricting test machine.Coefficient of friction uses computer automatically to detect note
Record.Test film is block sample, a size of 25 X 25 X 6mm；Mating plate is HT250, and organizational structure is pearlite, and hardness is
HB180-220.Test film bearing pressure 1M Pa. temperature 100 DEG C, 150 DEG C, 200 DEG C, 250 DEG C, 300 DEG C, at 350 DEG C point
Other the coefficient of friction of friction pair and the wear rate of composite are measured.Result shows, at 350 DEG C, coefficient of friction is in
Between 0.35-0.40, coefficient of friction is highly stable, and brake oil is low；Even if seldom there is heat fading, show
The heat stability of test piece is fine；And test piece wear rate when low temperature and high temperature is minimum.Illustrate that the used present invention is compound to increase
The composite braking material that strong fiber prepares is the friction material of a kind of function admirable.
Claims (6)
1. a composite reinforcing fiber, it is characterised in that be made up of the raw material of following weight portion:
Ore deposit rock wool 50-80 part, calcium carbonate crystal whisker 10-30 part, attapulgite powder 1-10 part, coupling agent 1-5 part.
A kind of composite reinforcing fiber the most according to claim 1, it is characterised in that described ore deposit rock wool is mainly by following weight
Part raw material carries out spinning by high-temperature smelting pot and carries out surface reason generation, wherein basalt 10-30 part, diabase 50-70 part,
Limestone 5-15 part, dolomite 5-10 part.
A kind of composite reinforcing fiber the most according to claim 1, it is characterised in that described calcium carbonate crystal whisker, it prepares work
Skill comprises the following steps: after fully being digested by lime powder, adds the sodium dihydrogen phosphate that concentration is 0.5-1mmoL/L and obtains
To suspension, it is sufficiently stirred for and is heated to 90 DEG C, be passed through carbon dioxide and carry out carbonation reaction, generate precipitation；Will precipitation
After filtration, washing, dry at 100 DEG C.
A kind of composite reinforcing fiber the most according to claim 1, it is characterised in that described attapulgite powder, selects concavo-convex
The attapulgite clay ores type that excellent stone crystalline content is more than 50%, carbonate content is less than 10%, grinds attapulgite clay
It is milled to 100-320 mesh.
A kind of composite reinforcing fiber the most according to claim 1, it is characterised in that silane coupler selected by described coupling agent.
The preparation technology of a kind of composite reinforcing fiber the most according to claim 1, it is characterised in that it comprises the following steps:
Take above-mentioned raw material, first ore deposit rock wool is carried out cutting and grinding；Add calcium carbonate crystal whisker, attapulgite powder mixed at high speed, mixed
Add silane coupler during conjunction, obtain composite reinforcing fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610544950.XA CN106188623A (en) | 2016-07-12 | 2016-07-12 | A kind of composite reinforcing fiber and preparation technology thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610544950.XA CN106188623A (en) | 2016-07-12 | 2016-07-12 | A kind of composite reinforcing fiber and preparation technology thereof |
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| CN106188623A true CN106188623A (en) | 2016-12-07 |
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| CN201610544950.XA Pending CN106188623A (en) | 2016-07-12 | 2016-07-12 | A kind of composite reinforcing fiber and preparation technology thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106673505A (en) * | 2016-12-11 | 2017-05-17 | 孙祎 | Preparation method of high-strength anti-cracking rock wool material |
| CN112553783A (en) * | 2020-11-27 | 2021-03-26 | 山东鲁阳节能材料股份有限公司 | Toughening type inorganic fiber felt and preparation method thereof |
| CN113175487A (en) * | 2021-04-28 | 2021-07-27 | 胡伟义 | Method for preparing reinforced composite mineral fiber |
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| CN1468890A (en) * | 2003-06-12 | 2004-01-21 | 山东大学 | Carbon fiber reinforced friction material and its prepn |
| US20080141898A1 (en) * | 2004-10-07 | 2008-06-19 | Fields John R | Mopping grade asphalts |
| CN101435475A (en) * | 2008-12-17 | 2009-05-20 | 东营信义汽车配件有限公司 | Composite material brake block special for high-speed train |
| CN103194172A (en) * | 2013-03-20 | 2013-07-10 | 咸阳非金属矿研究设计院有限公司 | Non-asbestos composite fiber and preparation method thereof |
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2016
- 2016-07-12 CN CN201610544950.XA patent/CN106188623A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1468890A (en) * | 2003-06-12 | 2004-01-21 | 山东大学 | Carbon fiber reinforced friction material and its prepn |
| US20080141898A1 (en) * | 2004-10-07 | 2008-06-19 | Fields John R | Mopping grade asphalts |
| CN101435475A (en) * | 2008-12-17 | 2009-05-20 | 东营信义汽车配件有限公司 | Composite material brake block special for high-speed train |
| CN103194172A (en) * | 2013-03-20 | 2013-07-10 | 咸阳非金属矿研究设计院有限公司 | Non-asbestos composite fiber and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106673505A (en) * | 2016-12-11 | 2017-05-17 | 孙祎 | Preparation method of high-strength anti-cracking rock wool material |
| CN112553783A (en) * | 2020-11-27 | 2021-03-26 | 山东鲁阳节能材料股份有限公司 | Toughening type inorganic fiber felt and preparation method thereof |
| CN113175487A (en) * | 2021-04-28 | 2021-07-27 | 胡伟义 | Method for preparing reinforced composite mineral fiber |
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Application publication date: 20161207 |