CN1405372A - Method for preparing lignocellulose for road - Google Patents
Method for preparing lignocellulose for road Download PDFInfo
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- CN1405372A CN1405372A CN02132786A CN02132786A CN1405372A CN 1405372 A CN1405372 A CN 1405372A CN 02132786 A CN02132786 A CN 02132786A CN 02132786 A CN02132786 A CN 02132786A CN 1405372 A CN1405372 A CN 1405372A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/66—Disintegrating fibre-containing textile articles to obtain fibres for re-use
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Abstract
The invention refers to a method of preparing wood fiber for road. The method is as follows: use scrap newspapers as raw materials, and after cleaning &purifying, soaking and pulping, compound it and ultra-small powder of denatured kaolin under normal temperature and pressure, the kaolin's magnitude is 11%-23% (wt%) of fiber's; then after dehydration, desiccation and scatterning, the fiber production is made into scattered-shape wood fiber; then the wood fiber is mixed with pitch solution under normal temperature and pressure and stirring condition, then control the temperature to be 70-100 degree C to make solvent oil volatilize and then cool it for circular utilization; then extrude the fiber to shape and cool it to obtain the grain-shape road wood fiber.
Description
Affiliated technical field
The present invention relates to a kind of preparation method of fiber stabilizer, specifically is a kind of preparation method of lignocellulose for road.
Background technology
Method for preparing lignocellulose for road is accompanied by popularizing of SMA pavement structure and produces, SMA (Stone Matrix Asphalt), full name is a pitch horse's hoofs fat crushed stones compound, it is a kind of widely used novel road surface structure of vast developed country that is, it is (by pitch by gap grading rubble and pitch water chestnut fat, fiber stabilizer, breeze, the fine aggregate composition) high temperature mixes and stirs the hot-mix asphalt mixture as pavement abrasion layer or cover that forms, and it has, and effectively embedding is crowded between aggregate, asphalt membrane is thicker, voidage is little, rough surface, characteristics such as fiber reinforcement.Lignin fibre is one of important composition composition that constitutes SMA, and the adding of this stabilizing agent can guarantee that pitch is mixing and stirring, stores, transports, paving and rolling maintenance stability in the process.
The SMA technology was come out since Germany from 1960's, because its superior performance, and be widely used and develop, fiber stabilizer irreplaceable effect in asphalt also is familiar with by people gradually and is obtained certainly, and kinds of fibers also develops into the lignin fibre of present main flow from initial mineral fibres, organic polymer fiber thus.Germany JRS
TMCompany is that a family utilizes the log of national high-quality to be engaged in the company that the various uses lignin fibre is produced, and once utilizes pitch to develop VIATOP as the granulating auxiliary agent
Series of products, wherein VIATOP Superior
Directly lignin fibre, pitch, modifier EVA are mixed be pressed into granular, thereby greatly improved the performance of product.U.S. FIBERAND
TMCompany once utilized discarded art paper, earlier it fully was crushed into paper pulp, added kaolin again and carried out compoundly, finally made product Road-Cel
, its product occupies 75% the market share in the U.S..
The at present domestic known loose first class lignin fibre that the development of precious permanent development in science and technology Co., Ltd of Jilin Province Highway Administration Bureau is arranged, but loose first class exists the easy moisture absorption with lignin fibre, to the seal request height in the packaging process, defective such as be not easy in asphalt, add in the work progress.However, no matter be external or domestic, about the preparation method of cellulose fiber for road use, all do not have document and openly report.
Summary of the invention
The objective of the invention is to develop and a kind ofly adopt discarded newsprint as fibrous raw material, produce the preparation method of granular cellulose fiber for road use product, every performance indications of its prepared product that goes out all reach at present the level of like product in the world, reach the demand that satisfies making high-grade highway surface layer.
The preparation method of lignocellulose for road of the present invention is, with discarded newsprint is raw material, through purifying, removal of impurities, soak, under agitation break into fiber slurry, fiber slurry concentration is controlled to be 3%-5% (weight), kaolin superfine powder after the modification and fiber slurry are dropped into recombiner jointly, kaolin superfine powder addition is the 11%-23% (weight) of fibre weight, at normal temperature, the normal pressure speed of agitator be carry out under the 3000r/m-5000r/m condition compound, be controlled to be 10min-20min recombination time, the fiber after it is compound is through dehydration, dry, break up and make loose shape wood fibre; With solid asphalt with solvent naphtha dissolving and be mixed with cold primer-oil; enter jointly in the mix still with loose shape wood fibre again; cold primer-oil and loose fiber weight proportion are 1: 1.1-1: 1.3; carrying out 10min-20min under stirring condition mixes; mixed fiber control temperature is under 70 ℃ of-100 ℃ of conditions, makes the solvent naphtha volatilization, and the cooling back is in order to recycle; fiber makes it extrusion modling through comminutor, and the cooling back obtains the graininess lignocellulose for road.
The kaolin superfine powder is carried out modification, be to be 30 ℃-40 ℃ in the control temperature by kaolin superfine powder and titanate coupling agent 311-7, time is 45min-60min, and the titanate coupling agent addition is to mix under 2%-4% (weight) condition of kaolin quality.The activation index of kaolin superfine powder＞80% after the modification.
After the purification of raw material newsprint process, removal of impurities, the immersion, under condition of stirring, break into fiber slurry.
Cold primer-oil is to be done K cryogenic treatment and pulverized by the high-quality bitumen for road use, and will pulverizing pitch again, to be dissolved in rubber industry usefulness solvent naphtha (petrochemicals) formulated, and its concentration is 25%-35% (weight).
Fiber product after compound recited above, be control temperature be to carry out drying under 100 ℃ of-140 ℃ of conditions, break up then and make loose shape wood fibre, outward appearance is a canescence, and content of ashes is 12%-19% (weight), pH value 6.5-7.5, heat loss value＜1%, oil factor 4-8 is under 70% condition at relative air humidity, fiber water absorption rate＜5%.
The most significant advantage of the present invention is:
A. on material choice, abandoned traditional mineral fibres, organic polymer fiber adopts the lignin fibre of natural reproducible to stablize asphalt, and lignin fibre has higher oil factor, and bigger specific area is safe in utilization harmless.
B. producing of loose shape wood fibre, owing to adopted the kaolin superfine powder and the wood fibre of modification compound, thus increased the content of ashes in the fiber, improve fiber serviceability in engineering.Microscopic appearance with the loose shape fiber of scanning electron microscopic observation, drawing kaolin by Instrumental Analysis has been coated with uniformly and has been invested fiber surface, loose shape wood fibre outward appearance is a canescence, and average fiber length is 0.476mm, and content of ashes is 12%-19%, pH value 6.5-7.5, heat loss value＜1%, oil factor 4-8 is under the condition of relative air humidity 70%, fiber water absorption rate＜5%, its every performance indications all reach international like product level.
C. the key problem in technology of graininess lignocellulose for road preparation is the problem of mixing and stirring of loose shape wood fibre and bitumen for road use.Pitch is made of the heavy ends in the oil, and thickness at normal temperatures and pressures lacks mobile and dispersedly, can't realize and the mixing and stirring of fiber.Preparation method of the present invention has solved the problems referred to above, adopt solvent naphtha earlier pitch to be dissolved, be mixed with cold primer-oil, and then the oil absorption that utilizes wood fibre again makes pitch be wrapped in fiber surface equably, simultaneously utilize the effumability of solvent naphtha again with its recycling use, method is simple, and is industrial feasible.
D. on material choice, adopted the lignin fibre of natural reproducible, the solvent of the preparation raw material of modified kaolin and cold primer-oil preparation is all selected the market existing products for use, and its main preparation process condition relaxes.The a whole set of preparation technology of lignocellulose for road of the present invention is simple for this reason, and production cost is low, is easy to realize suitability for industrialized production, all can reach nontoxic to people and external environment in preparation and use thereof, is environment-friendly products completely.
E. its every performance indications of lignocellulose for road of the present invention all reach the level of like product in the world, be specially adapted in the more relatively road surface of asphalt contents such as SMA, can prevent effectively asphalt mix and stir, store, the generation of transportation, paving process medium pitch segregation, weeping, make asphalt show good performance.
Description of drawings
Accompanying drawing is lignocellulose for road preparation technology's of the present invention flow diagram.
In the diagram, raw material be with waste paper as fibrous raw material, general Vinsol fiber content is 92-95%, through purification, the removal of impurity, in pulping equipment, soak, pull an oar, concentration of slurry is controlled to be 3%-5% (weight).The kaolin superfine powder is selected coating kaolin (industrial products) for use, enter modified device, modifier is selected titanate coupling agent 311-7 (chemical products that sell in market) for use, its addition is the 2%-4% (weight) of kaolin superfine powder, the control modification temperature is 30 ℃-40 ℃, and the time is 45min-60min; Fiber slurry for preparing and the kaolin superfine powder after the modification enter equipment complex, kaolin superfine powder addition is the 11%-23% (weight) of fibre weight, under high-speed stirred, normal temperature, normal pressure, carry out the compound of 10min-20min, fiber after compound is put into dehydrator and is dewatered, and then knock down drier, carry out drying under 100 ℃-140 ℃ temperature, dried fiber is dispersed as loose shape wood fibre with the equipment of breaing up; The high-quality bitumen for road use is done K cryogenic treatment, pulverize and drop into the pitch dissolution vessel, add rubber industry simultaneously with solvent naphtha (petrochemicals), make its cold primer-oil that is mixed with 25%-35% (weight), will stir 10min-20min in loose shape wood fibre and the cold primer-oil input mixing apparatus, make pitch and mixed with fibers evenly also fully enter into fiber, fiber after mixing and stirring is heated up, and 70 ℃-100 ℃ of control temperature make the solvent naphtha volatilization, enter the condenser cooling, and then recycle.The fiber that will remove solvent naphtha at last sends into that extrusion molding device carries out granulation, final graininess lignocellulose for road is obtained in cooling.
Specific embodiment example 1:
Getting coating kaolin 0.4Kg joins in the heated at high speed mixer, design temperature is 30 ℃, after machining 5 minutes, titanate coupling agent 311-7 is joined in the mixer, the addition of titanate coupling agent is 8g, closing machine behind the modification 45min, the coating kaolin after the taking-up modification, measuring activation index is 82%.
Select for use discarded newsprint as fibrous raw material, content of cellulose 93.4%, content of ashes 6.6%.Take by weighing newsprint 3.6Kg and soaked 1 hour in water, be made into fiber pulp with beating equipment, slurry concentration is 3%, pour fiber pulp into equipment complex, coating kaolin in equipment complex after the adding modification starts mulser, and control rotor speed is 3000r/min, behind the timing 10min, compound end is poured the slurry after compound into filter bag and is filtered, and filters the back fiber owing to be entwined bulk each other, block fiber is put into muffle furnace oven dry 4 hours, and bake out temperature is 100C.Dried fiber is dispersed as loose first class wood fibre 4Kg with the equipment of breaing up.With ESEM loose first class is detected with lignocellulosic products, the result shows that kaolin is coated with uniformly and invests fiber surface, adopting image analysis technology to measure average fiber length is 0.532mm, and other every detection indexs are content of ashes 13.2%, pH value 6.9, heat loss value 0.67%, oil factor 6.7 is under the condition of relative air humidity 70%, fiber water absorption rate 4.32%, These parameters detect all and carry out with reference to external like product examination criteria.
Get high-quality bitumen for road use 1kg, it is carried out-6 ℃ of K cryogenic treatment make it to become fragile, pitch is ground into the container that fragment is put into 6L, add 2.67kg rubber industry solvent naphtha, make pitch dissolve and be mixed with the cold primer-oil of 27% (weight) by stirring with the steel roller.The loose first class that makes previously put into wood fibre 4kg mix and stir still and cold primer-oil is poured into wherein, stirred 10 minutes, be evenly distributed in the loose fiber up to pitch, this moment, fiber was pitchy.Give and to mix and stir the still heating, temperature is controlled at 70 ℃, makes the asphalt solution 80min that fully volatilizees, and the oil gas that volatilizes is collected into the condenser recycle by flue.The fiber that mixes and stirs is sent into the feeding warehouse of multifunction granulating machine, start comminutor and make fiber be squeezed into graininess, fiber grain is final products after cooling.Loose shape fiber content 81%, particle length scope 8-15mm, particle diameter 6mm.Example 2:
Getting coating kaolin 0.57Kg joins in the heated at high speed mixer, design temperature is 35 ℃, after machining 5 minutes, titanate coupling agent 311-7 is joined in the mixed cylinder, the addition of titanate coupling agent is 17g, closing machine behind the modification 50min, the coating kaolin after the taking-up modification, measuring activation index is 87%.
Select for use discarded newsprint as fibrous raw material, content of cellulose 93.4%, content of ashes 6.6%.Take by weighing newsprint 3.43Kg and soaked 1 hour in water, be made into fiber pulp with beating equipment, slurry concentration is 4%, pour fiber pulp into equipment complex, coating kaolin in equipment complex after the adding modification starts mulser, and control rotor speed is 4000r/min, behind the timing 15min, reaction finishes, and will react the back slurry and pour the filter bag filtration into, filters the back fiber owing to be entwined bulk each other, block fiber is put into muffle furnace oven dry 4 hours, and bake out temperature is 120 ℃.Dried fiber is dispersed as loose first class wood fibre 4Kg with the equipment of breaing up.With ESEM loose first class is detected with lignocellulosic products, the result shows that kaolin is coated with uniformly and invests fiber surface, adopting image analysis technology to measure average fiber length is 0.482mm, and other every detection indexs are content of ashes 15.8%, pH value 6.8, heat loss value 0.52%, oil factor 7.2 is under the condition of relative air humidity 70%, fiber water absorption rate 3.78%, These parameters detect all and carry out with reference to external like product examination criteria.
Get high-quality bitumen for road use 1kg, it is carried out-6 ℃ of K cryogenic treatment make it to become fragile, pitch is ground into the container that fragment is put into 6L, add 2.33kg rubber industry solvent naphtha, make pitch dissolve and be mixed with the cold primer-oil of 30% (weight) by stirring with the steel roller.The loose first class that makes previously put into wood fibre 4kg mix and stir still and cold primer-oil is poured into wherein, stirred 15 minutes, be evenly distributed in the loose fiber up to pitch, this moment, fiber was pitchy.Give and to mix and stir the still heating, temperature is controlled at 85 ℃, makes the asphalt solution 60min that fully volatilizees, and the oil gas that volatilizes is collected into the condenser recycle by flue.The fiber that mixes and stirs is sent into the feeding warehouse of multifunction granulating machine, start comminutor and make fiber be squeezed into graininess, fiber grain is final products after cooling.Loose shape fiber content 80%, particle length scope 8-15mm, particle diameter 6mm.Example 3:
Getting coating kaolin 0.73Kg joins in the heated at high speed mixer, design temperature is 40 ℃, after machining 5 minutes, titanate coupling agent 311-7 is joined in the mixed cylinder, the addition of titanate coupling agent is 29g, closing machine behind the modification 60min, the kaolin superfine powder after the taking-up modification, measuring activation index is 85%.
Select for use discarded newsprint as fibrous raw material, content of cellulose 93.4%, content of ashes 6.6%.Take by weighing newsprint 3.27Kg and soaked 1 hour in water, be made into fiber pulp with beating equipment, slurry concentration is 5%, pour fiber pulp into equipment complex, coating kaolin in equipment complex after the adding modification starts mulser, and control rotor speed is 5000r/min, behind the timing 20min, reaction finishes, and will react the back slurry and pour the filter bag filtration into, filters the back fiber owing to be entwined bulk each other, block fiber is put into muffle furnace oven dry 4 hours, and bake out temperature is 140 ℃.Dried fiber is dispersed as loose first class wood fibre 4Kg with the equipment of breaing up.With ESEM loose first class is detected with lignocellulosic products, the result shows that kaolin is coated with uniformly and invests fiber surface, adopting image analysis technology to measure average fiber length is 0.426mm, and other every detection indexs are content of ashes 18.8%, pH value 6.8, heat loss value 0.58%, oil factor 6.9 is under the condition of relative air humidity 70%, fiber water absorption rate 4.12%, These parameters detect all and carry out with reference to external like product examination criteria.
Get high-quality bitumen for road use 1kg, it is carried out-6 ℃ of K cryogenic treatment make it to become fragile, pitch is ground into the container that fragment is put into 6L, add 2kg rubber industry solvent naphtha, make pitch dissolve and be mixed with the cold primer-oil of 33% (weight) by stirring with the steel roller.The loose first class that makes previously put into wood fibre 4kg mix and stir still and cold primer-oil is poured into wherein, stirred 20 minutes, be evenly distributed in the loose fiber up to pitch, this moment, fiber was pitchy.Give and to mix and stir the still heating, temperature is controlled at 100 ℃, makes the asphalt solution 40min that fully volatilizees, and the oil gas that volatilizes is collected into the condenser recycle by flue.The fiber that mixes and stirs is sent into the feeding warehouse of multifunction granulating machine, start comminutor and make fiber be squeezed into graininess, fiber grain is final products after cooling.Loose shape fiber content 81%, particle length scope 10-18mm, particle diameter 8mm.
Claims (6)
1, a kind of preparation method of lignocellulose for road, comprise with discarded paper, kaolin is raw material, discarded paper breaks into slurries through preliminary treatment, it is characterized in that discarding paper and select newsprint for use, through purifying, removal of impurities, after the immersion, under agitation break into fiber slurry, the fiber slurry weight concentration is controlled to be 3%-5%, with titanate coupling agent 311-7 the kaolin superfine powder is carried out dropping into recombiner with fiber slurry after the modification, the addition of modified kaolin superfine powder is the 11%-23% that fiber drops into weight, at normal temperature, normal pressure, carry out compound under the stirring condition, control recombination time is 10min-20min, and the fiber after compound is through dehydration, dry, break up and make loose shape wood fibre; Solid asphalt is mixed with cold primer-oil; and mix and stir in the still with loose shape wood fibre input; its weight proportion is 1: 1.1-1: 1.3; carrying out 10min-20min under normal temperature, normal pressure, stirring condition mixes; mixed fiber is heated to 70 ℃-100 ℃ in mixing and stirring still, make the solvent naphtha volatilization, through cooling; carry out recycle, last fiber obtains graininess lignocellulose for road product through comminutor extrusion modling, cooling.
2, according to the preparation method of the described lignocellulose for road of claim 1, it is characterized in that modified kaolin is by kaolin superfine powder and titanate coupling agent 311-7, in the control temperature is 30 ℃-40 ℃, time is 45min-60min, and the titanate coupling agent addition is to be mixed and made under the condition of kaolin weight 2%-4%.
3,, it is characterized in that activation index＞80% of the kaolin superfine powder after the modification according to the preparation method of the described lignocellulose for road of claim 1.
4, according to the preparation method of the described lignocellulose for road of claim 1, it is characterized in that described modified kaolin superfine powder and fiber slurry compound be under the control speed of agitator is the condition of 3000r/m-5000r/m, to carry out.
5, according to the preparation method of the described lignocellulose for road of claim 1, it is characterized in that cold primer-oil is by the high-quality bitumen for road use, it is formulated with solvent naphtha to be dissolved in rubber industry after K cryogenic treatment, pulverizing under-6 ℃ of conditions, and its weight concentration is 25%-35%.
6,, it is characterized in that the baking temperature of the fiber product after compound is controlled at 100 ℃-140 ℃ according to the preparation method of the described lignocellulose for road of claim 1.
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| CNB021327866A CN1246514C (en) | 2002-08-20 | 2002-08-20 | Method for preparing lignocellulose for road |
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| CNB021327866A CN1246514C (en) | 2002-08-20 | 2002-08-20 | Method for preparing lignocellulose for road |
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| CN1246514C CN1246514C (en) | 2006-03-22 |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100419136C (en) * | 2006-08-17 | 2008-09-17 | 付庆福 | Composite fiber and preparation method thereof |
| CN101096835B (en) * | 2007-05-29 | 2011-08-31 | 南京林业大学 | Lignocellulose material for road and method for making same |
| CN101607800B (en) * | 2009-07-24 | 2012-05-23 | 江苏省交通科学研究院股份有限公司 | Cellulose fiber for road use and method for preparing same |
| CN102925182A (en) * | 2003-05-16 | 2013-02-13 | 埃克森美孚研究工程公司 | Delayed coking process for producing free-flowing shot coke |
| CN103755190A (en) * | 2014-01-06 | 2014-04-30 | 同济大学 | Regenerated cellulose fiber and preparation method thereof |
| CN104098285A (en) * | 2014-07-16 | 2014-10-15 | 同济大学 | Waste paper fiber for self-curing of cement-based material, and preparation method of waste paper fiber |
| CN104109397A (en) * | 2013-04-19 | 2014-10-22 | 厦门大学 | Preparation for fiber composite powder and new technology of fiber composite powder as addition composition of modified asphalt |
| CN104372609A (en) * | 2014-10-27 | 2015-02-25 | 安徽聚顺塑业科技有限公司 | Novel process for efficient, energy-saving and green preparation of distinctive fibers by waste old clothes |
| CN104446078A (en) * | 2014-12-18 | 2015-03-25 | 长安大学 | Preparation method of straw fibers for enhancing bituminous pavement |
| CN107746208A (en) * | 2017-10-24 | 2018-03-02 | 中南林业科技大学 | A kind of road herbaceous plant Fiber Asphalt Mixture and preparation method thereof |
| CN109208360A (en) * | 2018-09-14 | 2019-01-15 | 中南林业科技大学 | A kind of wood composite fiber and preparation method thereof |
| CN109400965A (en) * | 2018-10-30 | 2019-03-01 | 河南工业大学 | A kind of preparation method of lignocellulose for road modified thermoplastic starch |
| CN110183871A (en) * | 2019-06-25 | 2019-08-30 | 厦门市思弘科技开发有限公司 | A kind of lignin fibre and preparation method thereof |
| CN112961377A (en) * | 2021-02-26 | 2021-06-15 | 北京拓朴博大科技发展有限公司 | Preparation method of road particle fiber |
| CN114180880A (en) * | 2021-12-17 | 2022-03-15 | 山东交通学院 | Modified straw fiber and preparation method thereof, and fiber asphalt mixture and preparation method thereof |
| CN116239332A (en) * | 2023-03-14 | 2023-06-09 | 江苏中创同盛新材料有限公司 | Granular wood fiber capable of improving stability of asphalt pavement and preparation method thereof |
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2002
- 2002-08-20 CN CNB021327866A patent/CN1246514C/en not_active Expired - Fee Related
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| CN102925182A (en) * | 2003-05-16 | 2013-02-13 | 埃克森美孚研究工程公司 | Delayed coking process for producing free-flowing shot coke |
| CN102925182B (en) * | 2003-05-16 | 2014-04-23 | 埃克森美孚研究工程公司 | Delayed coking process for producing free-flowing shot coke |
| CN100419136C (en) * | 2006-08-17 | 2008-09-17 | 付庆福 | Composite fiber and preparation method thereof |
| CN101096835B (en) * | 2007-05-29 | 2011-08-31 | 南京林业大学 | Lignocellulose material for road and method for making same |
| CN101607800B (en) * | 2009-07-24 | 2012-05-23 | 江苏省交通科学研究院股份有限公司 | Cellulose fiber for road use and method for preparing same |
| CN104109397A (en) * | 2013-04-19 | 2014-10-22 | 厦门大学 | Preparation for fiber composite powder and new technology of fiber composite powder as addition composition of modified asphalt |
| CN104109397B (en) * | 2013-04-19 | 2017-08-11 | 厦门大学 | A kind of preparation of fiber composite powder and the novel technique that component is added as modified pitch |
| CN103755190B (en) * | 2014-01-06 | 2015-10-28 | 同济大学 | A kind of regenerated cellulose fibre and manufacture method thereof |
| CN103755190A (en) * | 2014-01-06 | 2014-04-30 | 同济大学 | Regenerated cellulose fiber and preparation method thereof |
| CN104098285A (en) * | 2014-07-16 | 2014-10-15 | 同济大学 | Waste paper fiber for self-curing of cement-based material, and preparation method of waste paper fiber |
| CN104098285B (en) * | 2014-07-16 | 2017-01-18 | 同济大学 | Waste paper fiber for self-curing of cement-based material, and preparation method of waste paper fiber |
| CN104372609A (en) * | 2014-10-27 | 2015-02-25 | 安徽聚顺塑业科技有限公司 | Novel process for efficient, energy-saving and green preparation of distinctive fibers by waste old clothes |
| CN104446078A (en) * | 2014-12-18 | 2015-03-25 | 长安大学 | Preparation method of straw fibers for enhancing bituminous pavement |
| CN107746208A (en) * | 2017-10-24 | 2018-03-02 | 中南林业科技大学 | A kind of road herbaceous plant Fiber Asphalt Mixture and preparation method thereof |
| CN109208360A (en) * | 2018-09-14 | 2019-01-15 | 中南林业科技大学 | A kind of wood composite fiber and preparation method thereof |
| CN109208360B (en) * | 2018-09-14 | 2020-06-23 | 中南林业科技大学 | Wood composite fiber and preparation method thereof |
| CN109400965A (en) * | 2018-10-30 | 2019-03-01 | 河南工业大学 | A kind of preparation method of lignocellulose for road modified thermoplastic starch |
| CN110183871A (en) * | 2019-06-25 | 2019-08-30 | 厦门市思弘科技开发有限公司 | A kind of lignin fibre and preparation method thereof |
| CN112961377A (en) * | 2021-02-26 | 2021-06-15 | 北京拓朴博大科技发展有限公司 | Preparation method of road particle fiber |
| CN112961377B (en) * | 2021-02-26 | 2022-12-27 | 北京拓朴博大科技发展有限公司 | Preparation method of road particle fiber |
| CN114180880A (en) * | 2021-12-17 | 2022-03-15 | 山东交通学院 | Modified straw fiber and preparation method thereof, and fiber asphalt mixture and preparation method thereof |
| CN116239332A (en) * | 2023-03-14 | 2023-06-09 | 江苏中创同盛新材料有限公司 | Granular wood fiber capable of improving stability of asphalt pavement and preparation method thereof |
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| CN1246514C (en) | 2006-03-22 |
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