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Composite fiber and preparation method thereof

A composite fiber and production method technology, which is applied in fiber processing, textiles and papermaking, filament/thread forming, etc., can solve the problems of oil absorption characteristics, poor crack resistance and anti-aging performance, and improve low temperature crack resistance. Economical Considerable benefits and significant investment benefits

Active Publication Date: 2007-02-07
天成垦特莱赞皇科技有限公司
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Problems solved by technology

[0003] The purpose of the present invention is to provide a composite fiber and its production method to solve the problems of poor oil absorption properties, crack resistance and aging resistance in the prior art

Method used

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  • Composite fiber and preparation method thereof

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Embodiment Construction

[0014] The composition of the composite fiber is lignocellulose and polymer fiber synthetic silk, and the weight ratios thereof are 67%-77% and 23%-33%, preferably 72% and 28%.

[0015] The lignocellulose has a pH value of 7.5 ± 1.0, a length of less than 6mm, an oil absorption rate greater than 5 times its own weight, an ash content of (18 ± 5)%, and a 0.150mm air sieve passing rate of (70 ± 10)%. The original wood fiber, or other wood fiber of the same standard; the polymer fiber synthetic filament is a kind of long 6 ± 1.5mm, diameter 0.01 ~ 0.025mm, tensile strength ≥ 500Mpa, elongation at break ≥ 15%, Heat-resistant 210°C polymer staple fiber with no change in volume for 2 hours.

[0016] see figure 1 , the production method of the composite fiber of the present invention comprises the following process steps: the wooden raw material 1 is coarsely pulverized through the coarse pulverizer 2 [the degree of pulverization is: air-sieve 0.15mm sieve passing rate (55 ± 10)%], ...

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Abstract

The invention relates to a composite fiber formed by wooden cellulose and polymer composite fiber, wherein the pH value of wooden cellulose is 7.5+-1.0, while its length is less than 6mm, the oil adsorption is higher than 5 times of itself weight, the ash component is (18+-50%, and the air screen penetration is (70+-10%); the polymer composite fiber has 6+-1.5mm length and 0.01-0.025mm diameter, while its anti-tension strength is higher than 500MPa, the breakage extension rate is higher than 15%, and its volume will not change when being heated from 2 hours at 210Deg. C. The production of said composite fiber comprises: breaking, screening, separating, mixing, drying and weighting the wooden material; adding disperser into polymer composite fiber to be sheared and dried; then adding strengthener into said raw material to be mixed.

Description

technical field [0001] The invention relates to a composite fiber and a production method thereof, which are mainly used for adding an appropriate amount into asphalt concrete in proportion, and greatly improve the anti-cracking performance and anti-aging performance of the asphalt concrete by utilizing the micro-reinforcement effect and oil absorption characteristics of the composite fiber , changing the performance of conventional asphalt concrete pavement. Background technique [0002] At present, chemical fiber is added in the construction of asphalt concrete, which has the problems of poor oil absorption property, crack resistance and anti-aging performance. Contents of the invention [0003] The object of the present invention is to provide a composite fiber and its production method to solve the problems of poor oil absorption properties, crack resistance and aging resistance in the prior art. [0004] The technical solution of the present invention is: a composite...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D5/40C04B14/38C04B16/06
Inventor 付庆福
Owner 天成垦特莱赞皇科技有限公司
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