CN109706554A - A kind of preparation method of high temperature resistant staple fiber - Google Patents
A kind of preparation method of high temperature resistant staple fiber Download PDFInfo
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- CN109706554A CN109706554A CN201811631814.XA CN201811631814A CN109706554A CN 109706554 A CN109706554 A CN 109706554A CN 201811631814 A CN201811631814 A CN 201811631814A CN 109706554 A CN109706554 A CN 109706554A
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- fiber
- high temperature
- staple fiber
- temperature resistant
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Abstract
The present invention provides a kind of preparation method of high temperature resistant staple fiber, the waste silk generated when being processed using waste textile or spinning, by collecting and the processes such as cutting, fiber dispersion, screening slagging-off, drying, prepare high temperature resistant staple fiber, method is simple and environmentally-friendly, it is at low cost, which is used to prepare friction material, can be widely applied in the clutch and brake apparatus of the machinery such as engineering machinery, agricultural machinery, mining machinery, heavy-duty vehicle, car, motorcycle and ship.
Description
Technical field
A kind of method and application prepared the invention belongs to staple fiber technical field more particularly to high temperature resistant staple fiber should
The short fibre of high temperature resistant prepares high temperature friction material.
Background technique
Friction enhancing material is one of important composition part of friction material, main to use gold in friction material formulation
Belong to fiber, organic fiber and inorfil, they not only play a crucial role the intensity of friction material, and to changing
The polishing machine important role of kind friction material.Friction material must have enough intensity, otherwise will appear friction material
Material flake causes braking function to fail the problem of fragmentation.Fire resistant organic fibre include poly- fragrant oxadiazoles fiber, carbon fiber,
Para-aramid fiber, pbo fiber etc., this fiber not only has excellent mechanical property, but also is able to maintain stabilization at high temperature
Physical and chemical properties, so high-temperature fibre is the ideal material as friction enhancing material.But current and traditional nothing
There is also at high price compared to high-temperature fibre material for machine filler, it is difficult to the shortcomings that obtaining.
Summary of the invention
In order to overcome the deficiencies of the prior art, the purpose of the present invention is to provide a kind of high temperature resistant staple fiber preparation method, benefits
The waste silk generated when being processed with waste textile or spinning, by collecting the processes such as cutting, fiber dispersion, screening slagging-off, drying,
High temperature resistant staple fiber is prepared, method is simple and environmentally-friendly, and it is at low cost, which is used to prepare friction material, it can be extensive
Clutch and system applied to the machinery such as engineering machinery, agricultural machinery, mining machinery, heavy-duty vehicle, car, motorcycle and ship
In dynamic device.
To achieve the above object, the present invention adopts the following technical scheme:
A kind of preparation method of high temperature resistant end fiber, its main feature is that carrying out in accordance with the following steps:
Step 1: collecting and cutting, collects high temperature resistance and long bunch fiber, and the high temperature resistance and long bunch fiber of collection is laid in hand hay cutter
In the carrier bar of blade cutting machine, in the side of guillotine cutter, setting fills the bearing container of water, adds dispersing agent in water, leads to
Chopper is crossed by high temperature resistance and long bunch fiber cutting short-forming fiber；
Step 2: the staple fiber after cutting is straight into bearing container, keeps bearing container middle short fiber in a certain concentration
It in range, is stirred in cutting-off process, disperses staple fiber gradually in water, the heavy or light impurities in staple fiber are gradually
It is separated from staple fiber surface；Slurry after stirring is entered into high speed rotation after scummer by feed inlet tangent line with certain pressure, by
In the difference of centrifugal force, the light impurities including sand grains, metallic particles, blob of viscose, plastics are sunk in scummer；Heavy impurity is got rid of
To scummer wall surface, under the effect of gravity, gradually to the fortune movement of cone bottom, into sediment pot；Fiber is since centrifugal force is smaller, gradually
It is moved to center low-pressure area, vortex rises after reaching bottom, is finally discharged by good slurry mouth, obtains more clean short fibered pulp
Material；
Step 3: clean short stock carries out press dewatering, and dewatered liquid reflux is recycled into bearing container
It uses；
Step 4: the staple fiber of dehydration is dried, and 90-110 DEG C of drying temperature, is obtained well dispersed, clean short
Fiber.
Further, the high temperature resistance and long bunch fiber is the waste and old poly- fragrant oxadiazoles fibre generated in process of textile production
One of dimension, carbon fiber, para-aramid fiber, meta-aramid fibers, pbo fiber are several.
Further, the staple fiber in the step 1 is having a size of 3~9mm.
Further, dispersing agent is polyacrylamide or modified starch in the step 1.
Further, the concentration of the dispersing agent is 0.1%~2%.
Further, the staple fiber concentration in the step 2 in bearing container is 0.5%~10%.
Further, 60~300rpm of speed of agitator in the step 2,0.5~2h of mixing time.
High temperature resistant staple fiber obtained by the above method is used as to the flock of friction material, obtains high temperature resistant friction material
Material.
High-temperature resistant friction material obtained above is used to prepare engineering machinery, agricultural machinery, mining machinery, traction engine
, the mechanical clutch and brake apparatus such as car, motorcycle and ship.
Compared with prior art, beneficial effects of the present invention:
(1) present invention can effectively reduce the hardness of product, resistance to height using high temperature resistant staple fiber as the filler of friction material
Warm nature can be good, has high temperature friction coefficient stabilization, heat fading used as the reinforcement of friction material under the conditions of 600-700 DEG C
The small advantage low with brake noise.
(2) present invention using waste and old recycling high temperature resistance and long bunch fiber, in the high temperature resistant, high-intensitive same for guaranteeing material
When relatively broad acquisition material and cost of material can be reduced.
(3) dispersing agent that the present invention uses can not only improve the dispersibility of fiber itself, and remaining dispersing agent can also adhere to
Lubricating action is played in friction material formulation in fiber surface, can play reduction and stablize coefficient of friction, reduce abrasion and
Reduce the effect of noise；Simultaneously can also improve friction material be respectively formulated between physical compatibility.
(4) simple process of the invention is feasible, and the uniformity of material is good, stable friction factor, low rate of wear, service life
Long, high mechanical strength, environment compatibility is good, has very wide application prospect.
Specific embodiment
The present invention is further explained in the light of specific embodiments.
A kind of preparation method of high temperature resistant end fiber, its main feature is that carrying out in accordance with the following steps:
Step 1: collecting and cutting, collects high temperature resistance and long bunch fiber, and the high temperature resistance and long bunch fiber of collection is laid in hand hay cutter
In the carrier bar of blade cutting machine, in the side of guillotine cutter, setting fills the bearing container of water, adds dispersing agent in water, point
Powder is polyacrylamide or modified starch, and concentration is 0.1%~2%；High temperature resistance and long bunch fiber is cut into ruler by chopper
The very little staple fiber for being 3~9mm；
Step 2: the staple fiber after cutting is straight into bearing container, keeps bearing container middle short fiber in a certain concentration
It in 0.5%~10% range, is stirred in cutting-off process, 60~300rpm of speed of agitator, 0.5~2h of mixing time makes
Staple fiber is gradually dispersed in water, and the heavy or light impurities in staple fiber are gradually separated from staple fiber surface；After stirring
Slurry enters high speed rotation after scummer by feed inlet tangent line with certain pressure, due to the difference of centrifugal force, including sand grains, metal
Particle, blob of viscose, plastics light impurities sink in scummer；Heavy impurity is thrown toward scummer wall surface, under the effect of gravity, gradually
Gradually to the fortune movement of cone bottom, into sediment pot；Fiber is gradually moved to center low-pressure area since centrifugal force is smaller, after reaching bottom
It is vortexed and rises, be finally discharged by good slurry mouth, obtain more clean short stock；
Step 3: clean short stock carries out press dewatering, and dewatered liquid reflux is recycled into bearing container
It uses；
Step 4: the staple fiber of dehydration is dried, and 90-110 DEG C of drying temperature, is obtained well dispersed, clean short
Fiber.
High temperature resistance and long bunch fiber is waste and old poly- fragrant oxadiazoles fiber, the carbon fiber, contraposition generated in process of textile production
One of aramid fiber, meta-aramid fibers, pbo fiber are several.
High temperature resistant staple fiber obtained by the above method is used as to the flock of friction material, obtains high temperature resistant friction material
Material.
High-temperature resistant friction material obtained above is used to prepare engineering machinery, agricultural machinery, mining machinery, traction engine
, the mechanical clutch and brake apparatus such as car, motorcycle and ship.
Claims (7)
1. a kind of preparation method of high temperature resistant end fiber, it is characterised in that: carry out in accordance with the following steps:
Step 1: collecting and cutting, collects high temperature resistance and long bunch fiber, and the high temperature resistance and long bunch fiber of collection is laid in cutting knife type
In the carrier bar of cutting machine, in the side of guillotine cutter, setting fills the bearing container of water, adds dispersing agent in water, passes through hand hay cutter
Knife is by high temperature resistance and long bunch fiber cutting short-forming fiber；
Step 2: the staple fiber after cutting is straight into bearing container, keeps bearing container middle short fiber in a certain concentration range
It is interior, it is stirred in cutting-off process, disperses staple fiber gradually in water, the heavy or light impurities in staple fiber are gradually from short
Fiber surface separation；Slurry after stirring is entered into high speed rotation after scummer by feed inlet tangent line with certain pressure, due to from
The difference of mental and physical efforts, the light impurities including sand grains, metallic particles, blob of viscose, plastics are sunk in scummer；Heavy impurity, which is thrown toward, to be removed
Slag wall face, under the effect of gravity, gradually to the fortune movement of cone bottom, into sediment pot；Fiber is since centrifugal force is smaller, gradually in
The movement of heart low-pressure area, vortex rises after reaching bottom, is finally discharged by good slurry mouth, obtains more clean short stock；
Step 3: clean short stock carries out press dewatering, and dewatered liquid reflux is recycled into bearing container；
Step 4: the staple fiber of dehydration is dried, and 90-110 DEG C of drying temperature, obtains well dispersed, clean staple fiber.
2. a kind of preparation method of high temperature resistant staple fiber according to claim 1, it is characterised in that: the high temperature resistance and long tow
Fiber is waste and old poly- fragrant oxadiazoles fiber, the carbon fiber, para-aramid fiber, meta-aramid fibre generated in process of textile production
One of dimension, pbo fiber are several.
3. a kind of preparation method of high temperature resistant staple fiber according to claim 1, it is characterised in that: short in the step 1
Fiber size is 3~9mm.
4. a kind of preparation method of high temperature resistant staple fiber according to claim 1, it is characterised in that: disperse in the step 1
Agent is polyacrylamide or modified starch.
5. a kind of preparation method of high temperature resistant staple fiber according to claim 4, it is characterised in that: the concentration of the dispersing agent
It is 0.1%~2%.
6. a kind of preparation method of high temperature resistant staple fiber according to claim 1, it is characterised in that: accepted in the step 2
Staple fiber concentration in container is 0.5%~10%.
7. a kind of preparation method of high temperature resistant staple fiber according to claim 1, it is characterised in that: stirred in the step 2
60~300rpm of revolving speed, 0.5~2h of mixing time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811631814.XA CN109706554A (en) | 2018-12-29 | 2018-12-29 | A kind of preparation method of high temperature resistant staple fiber |
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| CN201811631814.XA CN109706554A (en) | 2018-12-29 | 2018-12-29 | A kind of preparation method of high temperature resistant staple fiber |
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| CN109706554A true CN109706554A (en) | 2019-05-03 |
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| CN201811631814.XA Pending CN109706554A (en) | 2018-12-29 | 2018-12-29 | A kind of preparation method of high temperature resistant staple fiber |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1456719A (en) * | 2003-06-05 | 2003-11-19 | 上海依极科技有限公司 | Production of aromatic copolymide fiber dissolving pulp |
| CN101058895A (en) * | 2006-04-17 | 2007-10-24 | 上海兰邦工业纤维有限公司 | Method of manufacturing fire-resistant high-performance organic pulp-shape fibre |
| CN101144253A (en) * | 2007-08-17 | 2008-03-19 | 钟洲 | High-temperature resistant insulation continuous sheet and manufacturing method thereof |
| CN102535223A (en) * | 2010-12-09 | 2012-07-04 | 烟台泰和新材料股份有限公司 | Method for preparing and grading contrapuntal aramid pulp |
| CN103103870A (en) * | 2012-12-28 | 2013-05-15 | 东华大学 | Method for preparing functional carbon fiber composite electrothermal paper |
| CN104343041A (en) * | 2014-10-15 | 2015-02-11 | 中国海诚工程科技股份有限公司 | Preparation method of meta-aramid paper |
| CN204401353U (en) * | 2014-12-31 | 2015-06-17 | 郑州运达造纸设备有限公司 | A kind of sediment pot of HC Cleaner |
| CN206721561U (en) * | 2017-04-24 | 2017-12-08 | 东莞金洲纸业有限公司 | It is a kind of to improve the system for removing paper pulp impurity efficiency |
-
2018
- 2018-12-29 CN CN201811631814.XA patent/CN109706554A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1456719A (en) * | 2003-06-05 | 2003-11-19 | 上海依极科技有限公司 | Production of aromatic copolymide fiber dissolving pulp |
| CN101058895A (en) * | 2006-04-17 | 2007-10-24 | 上海兰邦工业纤维有限公司 | Method of manufacturing fire-resistant high-performance organic pulp-shape fibre |
| CN101144253A (en) * | 2007-08-17 | 2008-03-19 | 钟洲 | High-temperature resistant insulation continuous sheet and manufacturing method thereof |
| CN102535223A (en) * | 2010-12-09 | 2012-07-04 | 烟台泰和新材料股份有限公司 | Method for preparing and grading contrapuntal aramid pulp |
| CN103103870A (en) * | 2012-12-28 | 2013-05-15 | 东华大学 | Method for preparing functional carbon fiber composite electrothermal paper |
| CN104343041A (en) * | 2014-10-15 | 2015-02-11 | 中国海诚工程科技股份有限公司 | Preparation method of meta-aramid paper |
| CN204401353U (en) * | 2014-12-31 | 2015-06-17 | 郑州运达造纸设备有限公司 | A kind of sediment pot of HC Cleaner |
| CN206721561U (en) * | 2017-04-24 | 2017-12-08 | 东莞金洲纸业有限公司 | It is a kind of to improve the system for removing paper pulp impurity efficiency |
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Application publication date: 20190503 |