CN110550880A - Lignin fiber prepared from waste cotton linters and preparation method thereof - Google Patents
Lignin fiber prepared from waste cotton linters and preparation method thereof Download PDFInfo
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- CN110550880A CN110550880A CN201910932625.4A CN201910932625A CN110550880A CN 110550880 A CN110550880 A CN 110550880A CN 201910932625 A CN201910932625 A CN 201910932625A CN 110550880 A CN110550880 A CN 110550880A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/18—Waste materials; Refuse organic
- C04B18/24—Vegetable refuse, e.g. rice husks, maize-ear refuse; Cellulosic materials, e.g. paper, cork
- C04B18/248—Vegetable refuse, e.g. rice husks, maize-ear refuse; Cellulosic materials, e.g. paper, cork from specific plants, e.g. hemp fibres
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
- C04B20/023—Chemical treatment
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
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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
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- General Chemical & Material Sciences (AREA)
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Abstract
The invention discloses a lignin fiber prepared from waste cotton linters, which comprises the following components in parts by weight: 50-90 parts of short cotton linter fiber, 10-30 parts of montmorillonite powder, 10-32 parts of dispersible latex powder, 6-26 parts of organic silicon waterproof powder, 4-25 parts of bauxite powder, 0.6-1 part of surfactant and 0.3-0.7 part of weather-resistant agent. The invention has the beneficial effects that: the main raw material for preparing the lignin fiber is the waste cotton linter, so that the problem of pollution of the solid waste cotton linter is solved, and the solid waste cotton linter can be recycled; the raw materials have the advantages of high dispersibility, high oil absorption rate, high activity and the like after being processed, so that the production cost is reduced; the short linter fiber, the montmorillonite powder, the dispersible latex powder, the organic silicon waterproof powder and the bauxite powder enable the lignin fiber to have strong adsorbability and weather resistance, and after the short linter fiber, the montmorillonite powder, the dispersible latex powder, the organic silicon waterproof powder and the bauxite powder are mixed with asphalt, the strength and the heat resistance of an asphalt highway are improved, the cracking of the asphalt highway is prevented, and the pressure resistance and the active adhesive force are increased.
Description
Technical Field
The invention relates to the technical field of preparation of lignin fibers, and particularly relates to a lignin fiber prepared from waste cotton linters and a preparation method thereof.
Background
The lignin fiber is an organic fiber, is mainly applied to pavement paving and is an indispensable stabilizer. The lignin fiber used in the existing road asphalt material has the problems of low cracking resistance, low water retention, low adhesive force, low compression resistance, softening in summer and the like. In order to solve the problems, if the problems cannot be effectively controlled in the early stage of the construction process, the problems in the later stage are amplified, and the convenience of construction, the strength and the adsorption to the asphalt grease must be improved.
disclosure of Invention
In order to solve the above problems, an object of the present invention is to provide a lignin fiber prepared from waste cotton linters and a preparation method thereof, wherein the lignin fiber has significantly improved bonding strength and surface strength, and strong adsorptivity and weather resistance.
The invention provides a lignin fiber prepared from waste cotton linters, which comprises the following components in parts by weight:
50-90 parts of short cotton linter fiber, 10-30 parts of montmorillonite powder, 10-32 parts of dispersible latex powder, 6-26 parts of organic silicon waterproof powder, 4-25 parts of bauxite powder, 0.6-1 part of surfactant and 0.3-0.7 part of weather-resistant agent.
As a further improvement of the invention, the paint comprises the following components in parts by weight: 50-60 parts of short cotton linter fiber, 10-15 parts of montmorillonite powder, 10-17 parts of dispersible latex powder, 6-11 parts of organic silicon waterproof powder, 4-10 parts of bauxite powder, 0.6-0.7 part of surfactant and 0.3-0.4 part of weather-resistant agent.
As a further improvement of the invention, the paint comprises the following components in parts by weight: 60-70 parts of short cotton linter fiber, 15-20 parts of montmorillonite powder, 17-22 parts of dispersible latex powder, 11-16 parts of organic silicon waterproof powder, 10-15 parts of bauxite powder, 0.7-0.8 part of surfactant and 0.4-0.5 part of weather-resistant agent.
as a further improvement of the invention, the paint comprises the following components in parts by weight: 70-80 parts of short cotton linter fiber, 20-25 parts of montmorillonite powder, 22-28 parts of dispersible latex powder, 16-21 parts of organic silicon waterproof powder, 15-20 parts of bauxite powder, 0.8-0.9 part of surfactant and 0.5-0.6 part of weather-resistant agent.
As a further improvement of the invention, the paint comprises the following components in parts by weight: 80-90 parts of short cotton linter fiber, 25-30 parts of montmorillonite powder, 28-32 parts of dispersible latex powder, 21-26 parts of organic silicon waterproof powder, 20-25 parts of bauxite powder, 0.9-1 part of surfactant and 0.6-0.7 part of weather-resistant agent.
As a further improvement of the invention, the paint comprises the following components in parts by weight: 65-75 parts of short cotton linter fiber, 18-27 parts of montmorillonite powder, 15-25 parts of dispersible latex powder, 7-17 parts of organic silicon waterproof powder, 8-16 parts of bauxite powder, 0.65-0.85 part of surfactant and 0.45-0.55 part of weather-resistant agent.
As a further improvement of the invention, the surfactant is a silicone oil.
As a further improvement of the invention, the weather resistant agent is a mixture of an ultraviolet resistant agent, an aging resistant agent and a light stabilizer, and the mass ratio of the ultraviolet resistant agent to the aging resistant agent to the light stabilizer is 2:1: 1.
As a further improvement of the invention, the mass ratio of the montmorillonite powder to the dispersible latex powder is 1: 1.
The invention also provides a preparation method for preparing lignin fiber by using the waste cotton linters, which comprises the following steps:
step 1, putting short cotton linter fibers into a shearing device, shearing the short cotton linter fibers into fragments with the length less than 7 millimeters, and then pouring the obtained fragments into a crushing device to be crushed for 40-50min to obtain cellulose fibers;
Step 2, putting the cellulose fiber obtained in the step 1 into a stirring device, adding montmorillonite powder, dispersible latex powder, organic silicon waterproof powder, bauxite powder, a surfactant and a weather-resistant agent with corresponding mass into the stirring device according to the mass ratio, and stirring for 20-30min to obtain a uniform mixture;
and 3, putting the uniform mixture obtained in the step 2 into a compressor for compression to obtain the granular lignin fiber.
The invention has the beneficial effects that: firstly, the main raw material for preparing the lignin fiber is the waste cotton linter, so that the pollution problem of the solid waste cotton linter is solved, and the solid waste cotton linter can be recycled; secondly, the raw materials have the advantages of high dispersibility, high oil absorption rate, high activity and the like after being processed, so that the production cost is greatly reduced, and the market is facilitated; and thirdly, the short cotton linter fiber, the montmorillonite powder, the dispersible latex powder, the organic silicon waterproof powder and the bauxite powder enable the lignin fiber to have strong adsorbability and weather resistance, and after the short cotton linter fiber, the montmorillonite powder, the dispersible latex powder, the organic silicon waterproof powder and the bauxite powder are mixed with asphalt, the strength and the heat resistance of an asphalt highway are improved, the asphalt highway is prevented from cracking, and the pressure resistance and the active adhesive force are increased.
drawings
Fig. 1 is a flow chart of a method for preparing lignin fiber from waste cotton linters according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail below with reference to specific embodiments and with reference to the attached drawings.
example 1
the embodiment 1 of the invention discloses a lignin fiber prepared by using waste cotton linters, which comprises the following components in parts by weight:
55 parts of short cotton linter fiber, 12 parts of montmorillonite powder, 12 parts of dispersible latex powder, 6 parts of organic silicon waterproof powder, 5 parts of bauxite powder, 0.6 part of surfactant and 0.3 part of weather-resistant agent. The capillary self-absorption function of the short cotton linter fibers can effectively conduct water and grease in the system, and the formed stress obviously improves the bonding strength and the surface strength. Therefore, the lignin fiber prepared by the short linter fiber has strong adsorbability and weather resistance, and after the mixed asphalt is used for paving a highway, the strength and heat resistance of the asphalt highway can be improved, the asphalt highway is prevented from cracking, and the pressure resistance and the active adhesive force of the asphalt highway are increased. The montmorillonite powder has good adsorption performance, can improve oil absorption rate, the dispersive latex powder increases the adsorption and dispersibility of auxiliary materials, the organic silicon waterproof powder reduces the water absorption of products and improves heat resistance, and the bauxite powder has good adsorption performance, fire resistance and acid and alkali resistance. The short linter fibers selected in the embodiment are solid waste linters, so that the problem of pollution of the solid waste linters is solved, the waste linters can be recycled, and the raw material cost is greatly reduced.
Further, the surfactant is silicone oil. The surfactant is used for improving the surface activity of the lignin fiber, so that the lignin fiber and the asphalt material can be combined more easily. The commonly used surfactants are mostly artificially synthesized, such as silane coupling agents, silicone oil or titanate coupling agents, and the like, and the silicone oil is selected as the coupling agent in the embodiment. The surfactant material can be selected as appropriate in a specific production process according to actual conditions or specific requirements, and is not limited to silicone oil.
further, the weather resisting agent is a mixture of an ultraviolet resisting agent, an aging resisting agent and a light stabilizer, and the mass ratio of the ultraviolet resisting agent to the aging resisting agent to the light stabilizer is 2:1: 1. The weathering agent can keep the lignin fiber in a stable state under different climatic conditions, so that the lignin fiber added with the weathering agent is used for paving the asphalt highway, the asphalt highway can adapt to temperature change in four seasons, and the service life of the highway is prolonged. The weather-resistant agent in the embodiment of the invention is a mixture of an ultraviolet resistant agent, an anti-aging agent and a light stabilizer, and the adverse effects of ultraviolet rays, illumination and the like on the lignin fibers are weakened through the comprehensive effects of the ultraviolet resistant agent, the anti-aging agent and the light stabilizer.
Further, the mass ratio of the montmorillonite powder to the dispersible latex powder is 1: 1.
the specific preparation method of the lignin fiber is shown in figure 1:
step 1, putting short linter fibers into a shearing device, shearing the short linter fibers into fragments with the length less than 7 mm, and then pouring the obtained fragments into a crushing device for crushing for 40-50min to obtain cellulose fibers.
In this embodiment, firstly, the short cotton linter fiber, the montmorillonite powder, the dispersible latex powder, the organic silicon waterproof powder, the bauxite powder, the surfactant and the weather-resistant agent are weighed according to the weight ratio of the components; and then putting the weighed short linter fibers into a shearing device for shearing treatment to obtain fragments with the length of 5 mm, putting the fragments into a crushing device for crushing treatment, and continuously crushing for 30min to obtain the cellulose fibers.
And 2, putting the cellulose fiber obtained in the step 1 into a stirring device, adding montmorillonite powder, dispersible latex powder, organic silicon waterproof powder, bauxite powder, a surfactant and a weather-resistant agent in corresponding mass into the stirring device according to the mass ratio, and stirring for 20-30min to obtain a uniform mixture.
In the embodiment, the surfactant is selected from silicone oil, the weather resisting agent is a mixture of an ultraviolet resistant agent, an aging resistant agent and a light stabilizer, and the mass ratio of the ultraviolet resistant agent to the aging resistant agent to the light stabilizer is 2:1: 1. Wherein the mass ratio of the montmorillonite powder to the dispersible latex powder is 1: 1. The obtained cellulose fibers, the montmorillonite powder, the dispersible latex powder, the organosilicon waterproof powder, the bauxite powder, the surfactant and the weather-resistant agent which are weighed previously are sequentially put into a stirring device to be stirred and mixed, the selected stirring time in the embodiment is 25min, the stirring time can be determined according to actual conditions in the specific production process, if the preparation forgiveness is large, the longer stirring time is selected, otherwise, the stirring time is properly reduced, and the mixture is well stirred and uniformly mixed.
And 3, putting the uniformly mixed material obtained in the step 2 into a compression granulator for compression to obtain a granular lignin fiber product. The compression pressure in the embodiment is 7-8 MPa, and the lignocellulose is packed and molded under the pressure of 0.8 +/-0.05 MPa, so that a flocculent lignin fiber product is obtained.
The following examples differ from example 1 only in that:
Example 2
A lignin fiber prepared from waste cotton linters comprises the following components in parts by weight: 50 parts of short cotton linter fiber, 10 parts of montmorillonite powder, 10 parts of dispersible latex powder, 6 parts of organic silicon waterproof powder, 4 parts of bauxite powder, 0.6 part of surfactant and 0.3 part of weather-resistant agent.
The results of laboratory tests were as follows:
Example 3
A lignin fiber prepared from waste cotton linters comprises the following components in parts by weight: 58 parts of short cotton linter fiber, 14 parts of montmorillonite powder, 14 parts of dispersible latex powder, 7 parts of organic silicon waterproof powder, 6 parts of bauxite powder, 0.6 part of surfactant and 0.3 part of weather-resistant agent.
The results of laboratory tests were as follows:
Example 4
a lignin fiber prepared from waste cotton linters comprises the following components in parts by weight: 62 parts of short cotton linter fiber, 16 parts of montmorillonite powder, 16 parts of dispersible latex powder, 9 parts of organic silicon waterproof powder, 8 parts of bauxite powder, 0.6 part of surfactant and 0.3 part of weather-resistant agent.
The results of laboratory tests were as follows:
Example 5
a lignin fiber prepared from waste cotton linters comprises the following components in parts by weight: 64 parts of short cotton linter fiber, 18 parts of montmorillonite powder, 18 parts of dispersible latex powder, 10 parts of organic silicon waterproof powder, 9 parts of bauxite powder, 0.65 part of surfactant and 0.35 part of weather-resistant agent.
The results of laboratory tests were as follows:
example 6
a lignin fiber prepared from waste cotton linters comprises the following components in parts by weight: 66 parts of short cotton linter fiber, 18 parts of montmorillonite powder, 18 parts of dispersible latex powder, 10 parts of organic silicon waterproof powder, 9 parts of bauxite powder, 0.65 part of surfactant and 0.35 part of weather-resistant agent.
The results of laboratory tests were as follows:
Example 7
A lignin fiber prepared from waste cotton linters comprises the following components in parts by weight: 68 parts of short cotton linter fiber, 21 parts of montmorillonite powder, 21 parts of dispersible latex powder, 12 parts of organic silicon waterproof powder, 11 parts of bauxite powder, 0.75 part of surfactant and 0.45 part of weather-resistant agent.
the results of laboratory tests were as follows:
Example 8
A lignin fiber prepared from waste cotton linters comprises the following components in parts by weight: 71 parts of short cotton linter fiber, 23 parts of montmorillonite powder, 23 parts of dispersible latex powder, 14 parts of organic silicon waterproof powder, 13 parts of bauxite powder, 0.75 part of surfactant and 0.45 part of weather-resistant agent.
The results of laboratory tests were as follows:
Example 9
a lignin fiber prepared from waste cotton linters comprises the following components in parts by weight: 73 parts of short cotton linter fiber, 24 parts of montmorillonite powder, 24 parts of dispersible latex powder, 15 parts of organic silicon waterproof powder, 14 parts of bauxite powder, 0.85 part of surfactant and 0.55 part of weather-resistant agent.
The results of laboratory tests were as follows:
example 10
A lignin fiber prepared from waste cotton linters comprises the following components in parts by weight: 75 parts of short cotton linter fiber, 26 parts of montmorillonite powder, 26 parts of dispersible latex powder, 17 parts of organic silicon waterproof powder, 16 parts of bauxite powder, 0.85 part of surfactant and 0.55 part of weather-resistant agent.
The results of laboratory tests were as follows:
Example 11
A lignin fiber prepared from waste cotton linters comprises the following components in parts by weight: 75 parts of short cotton linter fiber, 26 parts of montmorillonite powder, 26 parts of dispersible latex powder, 17 parts of organic silicon waterproof powder, 16 parts of bauxite powder, 0.95 part of surfactant and 0.65 part of weather-resistant agent.
The results of laboratory tests were as follows:
Example 12
A lignin fiber prepared from waste cotton linters comprises the following components in parts by weight: 77 parts of short cotton linter fiber, 26 parts of montmorillonite powder, 26 parts of dispersible latex powder, 17 parts of organic silicon waterproof powder, 16 parts of bauxite powder, 0.95 part of surfactant and 0.65 part of weather-resistant agent.
The results of laboratory tests were as follows:
Example 13
A lignin fiber prepared from waste cotton linters comprises the following components in parts by weight: 79 parts of short cotton linter fiber, 28 parts of montmorillonite powder, 28 parts of dispersible latex powder, 19 parts of organic silicon waterproof powder, 16 parts of bauxite powder, 0.6 part of surfactant and 0.3 part of weather-resistant agent.
The results of laboratory tests were as follows:
Example 14
a lignin fiber prepared from waste cotton linters comprises the following components in parts by weight: 81 parts of short cotton linter fiber, 11 parts of montmorillonite powder, 11 parts of dispersible latex powder, 20 parts of organic silicon waterproof powder, 18 parts of bauxite powder, 0.6 part of surfactant and 0.3 part of weather-resistant agent.
the results of laboratory tests were as follows:
example 15
A lignin fiber prepared from waste cotton linters comprises the following components in parts by weight: 83 parts of short cotton linter fiber, 13 parts of montmorillonite powder, 13 parts of dispersible latex powder, 23 parts of organic silicon waterproof powder, 18 parts of bauxite powder, 0.65 part of surfactant and 0.35 part of weather-resistant agent.
The results of laboratory tests were as follows:
example 16
A lignin fiber prepared from waste cotton linters comprises the following components in parts by weight: 85 parts of short cotton linter fiber, 15 parts of montmorillonite powder, 15 parts of dispersible latex powder, 22 parts of organic silicon waterproof powder, 17 parts of bauxite powder, 0.6 part of surfactant and 0.4 part of weather-resistant agent.
The results of laboratory tests were as follows:
Example 17
a lignin fiber prepared from waste cotton linters comprises the following components in parts by weight: 86 parts of short cotton linter fiber, 17 parts of montmorillonite powder, 17 parts of dispersible latex powder, 23 parts of organic silicon waterproof powder, 18 parts of bauxite powder, 0.7 part of surfactant and 0.4 part of weather-resistant agent.
the results of laboratory tests were as follows:
example 18
A lignin fiber prepared from waste cotton linters comprises the following components in parts by weight: 87 parts of short cotton linter fiber, 19 parts of montmorillonite powder, 19 parts of dispersible latex powder, 26 parts of organic silicon waterproof powder, 18 parts of bauxite powder, 0.67 part of surfactant and 0.38 part of weather-resistant agent.
The results of laboratory tests were as follows:
example 19
A lignin fiber prepared from waste cotton linters comprises the following components in parts by weight: 88 parts of short cotton linter fiber, 23 parts of montmorillonite powder, 23 parts of dispersible latex powder, 7 parts of organic silicon waterproof powder, 18 parts of bauxite powder, 0.66 part of surfactant and 0.42 part of weather-resistant agent.
The results of laboratory tests were as follows:
example 20
A lignin fiber prepared from waste cotton linters comprises the following components in parts by weight: 89 parts of short cotton linter fiber, 24 parts of montmorillonite powder, 24 parts of dispersible latex powder, 9 parts of organic silicon waterproof powder, 21 parts of bauxite powder, 0.72 part of surfactant and 0.46 part of weather-resistant agent.
The results of laboratory tests were as follows:
Example 21
A lignin fiber prepared from waste cotton linters comprises the following components in parts by weight: 90 parts of short cotton linter fiber, 11 parts of montmorillonite powder, 11 parts of dispersible latex powder, 8 parts of organic silicon waterproof powder, 12 parts of bauxite powder, 0.75 part of surfactant and 0.55 part of weather-resistant agent.
The results of laboratory tests were as follows:
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The lignin fiber prepared from the waste cotton linters is characterized by comprising the following components in parts by weight:
50-90 parts of short cotton linter fiber, 10-30 parts of montmorillonite powder, 10-32 parts of dispersible latex powder, 6-26 parts of organic silicon waterproof powder, 4-25 parts of bauxite powder, 0.6-1 part of surfactant and 0.3-0.7 part of weather-resistant agent.
2. The lignin fiber prepared by using waste cotton linters according to claim 1, characterized by comprising the following components in parts by weight: 50-60 parts of short cotton linter fiber, 10-15 parts of montmorillonite powder, 10-17 parts of dispersible latex powder, 6-11 parts of organic silicon waterproof powder, 4-10 parts of bauxite powder, 0.6-0.7 part of surfactant and 0.3-0.4 part of weather-resistant agent.
3. The lignin fiber prepared by using waste cotton linters according to claim 1, characterized by comprising the following components in parts by weight: 60-70 parts of short cotton linter fiber, 15-20 parts of montmorillonite powder, 17-22 parts of dispersible latex powder, 11-16 parts of organic silicon waterproof powder, 10-15 parts of bauxite powder, 0.7-0.8 part of surfactant and 0.4-0.5 part of weather-resistant agent.
4. the lignin fiber prepared by using waste cotton linters according to claim 1, characterized by comprising the following components in parts by weight: 70-80 parts of short cotton linter fiber, 20-25 parts of montmorillonite powder, 22-28 parts of dispersible latex powder, 16-21 parts of organic silicon waterproof powder, 15-20 parts of bauxite powder, 0.8-0.9 part of surfactant and 0.5-0.6 part of weather-resistant agent.
5. The lignin fiber prepared by using waste cotton linters according to claim 1, characterized by comprising the following components in parts by weight: 80-90 parts of short cotton linter fiber, 25-30 parts of montmorillonite powder, 28-32 parts of dispersible latex powder, 21-26 parts of organic silicon waterproof powder, 20-25 parts of bauxite powder, 0.9-1 part of surfactant and 0.6-0.7 part of weather-resistant agent.
6. The lignin fiber prepared by using waste cotton linters according to claim 1, characterized by comprising the following components in parts by weight: 65-75 parts of short cotton linter fiber, 18-27 parts of montmorillonite powder, 15-25 parts of dispersible latex powder, 7-17 parts of organic silicon waterproof powder, 8-16 parts of bauxite powder, 0.65-0.85 part of surfactant and 0.45-0.55 part of weather-resistant agent.
7. The lignin fiber produced using waste cotton linters according to claim 1, wherein the surfactant is silicone oil.
8. the lignin fiber prepared from waste cotton linters according to claim 1, wherein the weather resistant agent is a mixture of ultraviolet resistant agent, aging resistant agent and light stabilizer, and the mass ratio of the ultraviolet resistant agent, the aging resistant agent and the light stabilizer is 2:1: 1.
9. The lignin fiber prepared from waste cotton linters according to claim 1, wherein the mass ratio of the montmorillonite powder to the dispersible latex powder is 1: 1.
10. A preparation method for preparing lignin fiber by using waste cotton linters is characterized by comprising the following steps:
Step 1, putting short cotton linter fibers into a shearing device, shearing the short cotton linter fibers into fragments with the length less than 7 millimeters, and then pouring the obtained fragments into a crushing device to be crushed for 40-50min to obtain cellulose fibers;
step 2, putting the cellulose fiber obtained in the step 1 into a stirring device, adding montmorillonite powder, dispersible latex powder, organic silicon waterproof powder, bauxite powder, a surfactant and a weather-resistant agent with corresponding mass into the stirring device according to the mass ratio, and stirring for 20-30min to obtain a uniform mixture;
And 3, putting the uniform mixture obtained in the step 2 into a compressor for compression to obtain the granular lignin fiber.
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