CN100419136C - Composite fiber and preparation method thereof - Google Patents
Composite fiber and preparation method thereof Download PDFInfo
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- CN100419136C CN100419136C CNB2006101112419A CN200610111241A CN100419136C CN 100419136 C CN100419136 C CN 100419136C CN B2006101112419 A CNB2006101112419 A CN B2006101112419A CN 200610111241 A CN200610111241 A CN 200610111241A CN 100419136 C CN100419136 C CN 100419136C
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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
The present invention relates to a kind of composite fibre and production method thereof, being mainly used in proportion adds in the bituminous concrete in right amount, utilize the little reinforcement effect and the oil absorption of this composite fibre, the anti-cracking performance and the ageing resistace of bituminous concrete are increased substantially, changed the performance of conventional asphalt concrete pavement.
Background technology
At present in the construction of bituminous concrete, add chemical fibre, have the problem of oil absorption, anti-cracking performance and ageing resistace difference.
Summary of the invention
Purpose of the present invention just provides a kind of composite fibre and production method thereof, to solve the problem of oil absorption, anti-cracking performance and ageing resistace difference that prior art exists.
Technical scheme of the present invention is: a kind of composite fibre, this composite fibre constitute the synthetic silk of lignocellulose and polymer fiber, the part by weight of its formation is 67%～77% and 23%～33%.
The part by weight that the synthetic silk of described lignocellulose and polymer fiber constitutes is preferably 72% and 28%.
Described lignocellulose is that a kind of pH value is 7.5 ± 1.0, length less than 6mm, oil absorbency greater than 5 times of deadweights, content of ashes (18 ± 5) %, 0.150mm qi of chong channel ascending adversely sieve percent of pass protolignin's fiber for (70 ± 10) %, or the wood fibre of other identical standards; The synthetic silk of described polymer fiber be a kind of length 6 ± 1.5mm, diameter 0.01～O.025mm, tensile strength 〉=500Mpa, elongation at break 〉=15%, heat-resisting 210 ℃ continue 2 hours unconverted polymer short fibers of volume.
A kind of production method of described composite fibre comprises following processing step: with wood material through coarse crushing, smart pulverize, sieve, weighing, separation, mixing, drying, weighing get described lignocellulose; Simultaneously the synthetic silk of polymer fiber is added shear behind the dispersant with drying after described polymer short fiber; Then above-mentioned lignocellulose, polymer short fiber are mixed after adding high-strength dose, promptly obtain described composite fibre.
The present invention has following characteristics:
(1) improves the road surface heat-resisting ability, improve anti-softening, the rutting resistance in road surface.
(2) improve concrete and resist the freeze-thaw damage ability, improved road surface winter low temperature anti-cracking performance.
(3) increase the road surface friction, rainy day road surface skid resistance is improved.
(4) endurance quality and the fatigue resistance of raising concrete road surface, particularly for bridge floor and free settling road surface, prolong its service life greatly, and returns of investment are remarkable.The conventional pavement recapping cycle is 3～5 years, and the ordinary maintenance amount is big, the expense height.Use the new pavement life of composite fibre to increase by 3～5 times than original, the economic benefit of bringing thus is considerable.
Description of drawings
Fig. 1 is a technological process of production schematic diagram of the present invention.
The specific embodiment
This composite fibre constitute the synthetic silk of lignocellulose and polymer fiber, the part by weight of its formation is 67%～77% and 23%～33%, both part by weight are preferably 72% and 28%.
Described lignocellulose is that a kind of pH value is 7.5 ± 1.0, length less than 6mm, oil absorbency greater than 5 times of deadweights, content of ashes (18 ± 5) %, 0.150mm qi of chong channel ascending adversely sieve percent of pass protolignin's fiber for (70 ± 10) %, or the wood fibre of other identical standards; The synthetic silk of described polymer fiber be a kind of length 6 ± 1.5mm, diameter 0.01～O.025mm, tensile strength 〉=500Mpa, elongation at break 〉=15%, heat-resisting 210 ℃ continue 2 hours unconverted polymer short fibers of volume.
Referring to Fig. 1, the production method of composite fibre of the present invention comprises following processing step:
With 2 coarse crushings of wood material 1 process meal machine [degree of grinding is: qi of chong channel ascending adversely sieve 0.15mm screen cloth percent of pass (55 ± 10) %], refined grinder 3 smart pulverizing [degree of grinding is: qi of chong channel ascending adversely sieve 0.15mm screen cloth percent of pass (70 ± 10) %], sieving machine 4 sieve (400 mesh sieve), meter electronics 5 weighings, separator 6 separates (fiber and gas are separated), blender 7 mixes (mixed with fibers of different length is even), drying machine 8 carries out drying, after weighing, meter electronics 9 sends into mixing machine 10 again; Dispersant (CaSO with the synthetic silk 11 and 0.77% of polymer fiber
42H
2O) after 12 mixing,, after weighing, meter electronics 9 also sends into mixing machine 10 again through 13 shearings of staple fibre cutter, drying machine 14 dryings; While adds 0.8% high-strength dose of (Baso in mixing machine 10
4) 16, promptly obtain composite fibre of the present invention through mixing of mixing machine 10 at last, become final finished 18 through packing machine 17 packings again.
This composite fibre according to above-mentioned explained hereafter has tension and resistant to elevated temperatures double grading.Above-mentioned processing step is except that dry run, and whole technology is all carried out under normal temperature, normal pressure.In drying machine, lignocellulose control baking temperature is 85 ℃, and the synthetic silk control of polymer fiber baking temperature is 65 ℃, is 2h drying time.
Claims (3)
1. composite fibre is characterized in that: this composite fibre constitute lignocellulose and the synthetic silk of polymer fiber, the part by weight of its formation is 67%～77% and 23%～33%; Described lignocellulose is that a kind of pH value is 7.5 ± 1.0, length less than 6mm, oil absorbency greater than 5 times of deadweights, content of ashes (18 ± 5) %, 0.150mm qi of chong channel ascending adversely sieve percent of pass protolignin's fiber for (70 ± 10) %; The synthetic silk of described polymer fiber is a kind of length 6 ± 1.5mm, diameter 0.01～0.025mm, tensile strength 〉=500Mpa, elongation at break 〉=15%, heat-resisting 210 ℃ of lasting 2 hours unconverted polymer short fibers of volume.
2. the production method of the described composite fibre of claim 1 is characterized in that: comprise following processing step: with wood material through coarse crushing, smartly pulverize, sieve, weighing, separation, mixing, drying, weighing get described lignocellulose; Simultaneously the synthetic silk of polymer fiber is added shear behind the dispersant with drying after described polymer short fiber; Then above-mentioned lignocellulose, polymer short fiber are mixed after adding high-strength dose, promptly obtain described composite fibre.
3. production method according to claim 2 is characterized in that: described drying steps all carries out in drying machine, and lignocellulose control baking temperature is 85 ℃, and the synthetic silk control of polymer fiber baking temperature is 65 ℃, is 2h drying time; Described coarse crushing, smart pulverising step adopt meal machine, refined grinder respectively, and the degree of grinding of this meal machine is: qi of chong channel ascending adversely sieve 0.15mm screen cloth percent of pass (55 ± 10) %; The degree of grinding of this refined grinder is: qi of chong channel ascending adversely sieve 0.15mm screen cloth percent of pass (70 ± 10) %; Describedly sieve, separation, blend step adopt sieving machine, separator, blender respectively; Described weighing step all adopts meter electronics, and sieving of this sieving machine is 400 mesh sieves; Described shearing step adopts the staple fibre cutter; The described step that mixes adopts mixing machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101112419A CN100419136C (en) | 2006-08-17 | 2006-08-17 | Composite fiber and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101112419A CN100419136C (en) | 2006-08-17 | 2006-08-17 | Composite fiber and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
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| CN1908256A CN1908256A (en) | 2007-02-07 |
| CN100419136C true CN100419136C (en) | 2008-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2006101112419A Active CN100419136C (en) | 2006-08-17 | 2006-08-17 | Composite fiber and preparation method thereof |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101830657B (en) * | 2010-05-05 | 2012-09-26 | 长安大学 | Bituminous mixture mineral fiber composite granules for roads and preparation method thereof |
| CN117105555B (en) * | 2023-08-29 | 2024-03-22 | 天成垦特莱赞皇科技有限公司 | Composite fiber for asphalt pavement and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87100798A (en) * | 1986-02-18 | 1988-01-20 | 窒素公司 | Woody fiber mat |
| CN1114375A (en) * | 1994-06-27 | 1996-01-03 | 刘英杰 | Method for making wooden cellulose |
| CN1405372A (en) * | 2002-08-20 | 2003-03-26 | 东北大学 | Method for preparing lignocellulose for road |
-
2006
- 2006-08-17 CN CNB2006101112419A patent/CN100419136C/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87100798A (en) * | 1986-02-18 | 1988-01-20 | 窒素公司 | Woody fiber mat |
| CN1114375A (en) * | 1994-06-27 | 1996-01-03 | 刘英杰 | Method for making wooden cellulose |
| CN1405372A (en) * | 2002-08-20 | 2003-03-26 | 东北大学 | Method for preparing lignocellulose for road |
Non-Patent Citations (4)
| Title |
|---|
| 木塑复合材料成型技术装备的研究现状和发展方向. 江波，许澍华，张金斌.橡塑技术与装备，第31卷第3期. 2005 |
| 木塑复合材料成型技术装备的研究现状和发展方向. 江波，许澍华，张金斌.橡塑技术与装备，第31卷第3期. 2005 * |
| 木塑复合材料的研究、发展及展望. 高黎，王正.人造板通讯，第2期. 2005 |
| 木塑复合材料的研究、发展及展望. 高黎，王正.人造板通讯，第2期. 2005 * |
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| CN1908256A (en) | 2007-02-07 |
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Owner name: BEIJING TIANCHENG KENTELAI TECHNOLOGY CO., LTD. Free format text: FORMER NAME: FU QINGFU |
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Address after: 102200 torch Street 21, Changping District science and Technology Park, Beijing Patentee after: BEIJING TIANCHENG KENTELAI TECHNOLOGY CO., LTD. Address before: 100097 No. 21, min route, Haidian District, Beijing Patentee before: Fu Qingfu |
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Effective date of registration: 20190731 Address after: 051230 No. 1, No. 6 Road, Zanhuang Economic Development Zone, Shijiazhuang City, Hebei Province Patentee after: Tiancheng Ken Trizanhuang Technology Co., Ltd. Address before: 102200 torch Street 21, Changping District science and Technology Park, Beijing Patentee before: BEIJING TIANCHENG KENTELAI TECHNOLOGY CO., LTD. |
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