CN112300507A - Polystyrene and rice hull powder environment-friendly composite material and preparation method thereof - Google Patents
Polystyrene and rice hull powder environment-friendly composite material and preparation method thereof Download PDFInfo
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- CN112300507A CN112300507A CN202011208267.1A CN202011208267A CN112300507A CN 112300507 A CN112300507 A CN 112300507A CN 202011208267 A CN202011208267 A CN 202011208267A CN 112300507 A CN112300507 A CN 112300507A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L25/00—Compositions of, homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Compositions of derivatives of such polymers
- C08L25/02—Homopolymers or copolymers of hydrocarbons
- C08L25/04—Homopolymers or copolymers of styrene
- C08L25/06—Polystyrene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3009—Sulfides
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Abstract
The invention relates to the field of environment-friendly materials, in particular to an environment-friendly composite material of polystyrene and rice hull powder, which comprises the following components in percentage by mass: 30-40% of polystyrene; 20-30% of rice hull powder; 15-30% of filling material; 3-6% of a plasticizer; 2-4% of a hardening agent; 3-7% of a colorant; 5-7% of a stabilizer; 2-4% of a lubricant; the invention also discloses a preparation method of the environment-friendly composite material of polystyrene and rice hull powder, and the preparation method comprises the following steps: s1: recycling the polystyrene board; s2: pretreating rice hull powder; s3: proportioning of the filling material; s4: heat treatment of polystyrene, rice hull powder and filler; s5: hot-press molding of raw materials; the formula of the environment-friendly composite material is simpler, and more scientific and reasonable, and the physical properties of the environment-friendly composite material containing the polystyrene and the rice hull powder are effectively improved by adding the filler into the environment-friendly composite material containing the polystyrene and the rice hull powder, so that the actual service life of the environment-friendly composite material is effectively prolonged.
Description
Technical Field
The invention relates to the technical field related to environment-friendly materials, in particular to an environment-friendly composite material of polystyrene and rice hull powder and a preparation method thereof.
Background
The rice hull powder has wide sources, is an energy-saving and environment-friendly biomass raw material, can be used as wood flour of the wood-plastic composite material, but is not researched much at present for preparing the wood-plastic composite material, and has not ideal performance; the wood-plastic composite material has the advantages of wood and plastic, has good processing performance and high mechanical strength, has the characteristics of water resistance and corrosion resistance, is widely applied to the fields of building industry, automobile industry and the like, but has poor flame retardance and poor toughness, so the wood-plastic composite material needs to be popularized and used and also needs to be optimized and modified in multiple aspects.
Disclosure of Invention
The invention aims to provide an environment-friendly composite material of polystyrene and rice hull powder and a preparation method thereof, which aim to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the environment-friendly composite material of polystyrene and rice hull powder comprises the following components in percentage by mass:
30-40% of polystyrene;
20-30% of rice hull powder;
15-30% of filling material, which is prepared by glass fiber, asbestos and molybdenum disulfide according to the proportion of 2:2: 1;
3-6% of a plasticizer, specifically dibutyl phthalate;
2-4% of a hardening agent, which is specifically hexamethylenetetramine;
3-7% of colorant, which is prepared by blending various pigments;
5-7% of stabilizer, 2-4% of lubricant and the balance of water.
Preferably, the composition comprises (by mass percent):
35% of polystyrene;
25% of rice hull powder;
20% of filling material, which is prepared by glass fiber, asbestos and molybdenum disulfide according to the proportion of 2:2: 1;
4% of a plasticizer, in particular dibutyl phthalate;
3% of a hardening agent, specifically hexamethylenetetramine;
4% of colorant, which is prepared by blending various pigments;
5% of stabilizer, 3% of lubricant and the balance of water.
Preferably, the composition comprises (by mass percent):
33% of polystyrene;
24% of rice hull powder;
23% of filling material, which is prepared by glass fiber, asbestos and molybdenum disulfide according to the proportion of 2:2: 1;
4% of a plasticizer, in particular dibutyl phthalate;
3% of a hardening agent, specifically hexamethylenetetramine;
4% of colorant, which is prepared by blending various pigments;
5% of stabilizer, 3% of lubricant and the balance of water.
Preferably, the composition comprises (by mass percent):
31% of polystyrene;
23% of rice hull powder;
26% of filling material, wherein the filling material is prepared from glass fiber, asbestos and molybdenum disulfide in a ratio of 2:2: 1;
4% of a plasticizer, in particular dibutyl phthalate;
3% of a hardening agent, specifically hexamethylenetetramine;
4% of colorant, which is prepared by blending various pigments;
5% of stabilizer, 3% of lubricant and the balance of water.
Preferably, the polystyrene is a waste polystyrene board recovery material, is cleaned, aired and then crushed, and the particle size of the crushed polystyrene is less than 1 cm.
Preferably, the rice hull powder is dried at 90-100 ℃ for 2-3h, crushed to have the grain diameter smaller than 5 mm after being dried, then added into a sodium hydroxide solution with the mass fraction of 5-10%, soaked at 30-40 ℃ for 30-60min, then added with a silane coupling agent and sodium dodecyl benzene sulfonate, stirred for 50-100min, washed with clear water and dried to obtain the modified rice hull powder
Preferably, the colorant is a fluorescent or phosphorescent pigment.
The preparation method of the environment-friendly composite material of polystyrene and rice hull powder comprises the following steps:
s1: the recycled polystyrene board is recycled, cleaned, dried and crushed;
s2: drying the rice hull powder at 100 ℃ for 2h, crushing the rice hull powder after drying until the grain size is smaller than 5 mm, adding the rice hull powder into a sodium hydroxide solution with the mass fraction of 6%, soaking the rice hull powder for 40min at 40 ℃ in a heat preservation environment, adding a silane coupling agent and sodium dodecyl benzene sulfonate, stirring the mixture for 60min, washing the mixture by using clear water, and drying the washed mixture;
s3: preparing glass fiber, asbestos and molybdenum disulfide into a filling material according to the proportion of 2:2: 1;
s4: adding polystyrene, rice hull powder and a filler into a heat treatment device according to the mass percentage, introducing saturated steam into the heat treatment device, heating to 135 ℃, preserving heat for 10min, taking out materials in the heat treatment device, and standing at room temperature for twelve hours to obtain a pretreated raw material;
s5: adding the pretreated raw material obtained in the step S4, a plasticizer, a hardening agent, a coloring agent and a stabilizer into a forming machine according to mass percentage for hot press forming, and cooling after forming to obtain the environment-friendly polystyrene and rice hull powder composite material.
Compared with the prior art, the invention has the beneficial effects that: the formula of the environment-friendly composite material is simpler, more scientific and reasonable, and by adding a proper amount of glass fiber and asbestos into the environment-friendly composite material of polystyrene and rice hull powder and the filler prepared according to the proportion of 2:2:1, the toughness of the environment-friendly composite material is effectively improved through the glass fiber in the filler, the heat resistance of the environment-friendly composite material is effectively improved through the asbestos, and the abrasion resistance and wear resistance of the environment-friendly composite material are improved through the molybdenum disulfide in the environment-friendly composite material, so that the actual service life of the environment-friendly composite material is effectively prolonged.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
The invention provides a technical scheme that: the environment-friendly composite material of polystyrene and rice hull powder comprises the following components in percentage by mass:
35% of polystyrene;
25% of rice hull powder;
20% of filling material, which is prepared by glass fiber, asbestos and molybdenum disulfide according to the proportion of 2:2: 1;
4% of a plasticizer, in particular dibutyl phthalate;
3% of a hardening agent, specifically hexamethylenetetramine;
4% of colorant, which is prepared by blending various pigments;
5% of stabilizer, 3% of lubricant and the balance of water.
The polystyrene is a waste polystyrene board recovery material, is washed, dried and then crushed, and has a particle size smaller than 1 cm after crushing, and the colorant is a fluorescent or phosphorescent pigment.
The preparation method of the environment-friendly composite material of polystyrene and rice hull powder comprises the following steps:
s1: the recycled polystyrene board is recycled, washed, dried and crushed, and the particle size of the crushed polystyrene board is less than 1 cm;
s2: drying the rice hull powder at 100 ℃ for 2h, crushing the rice hull powder after drying until the grain size is smaller than 5 mm, adding the rice hull powder into a sodium hydroxide solution with the mass fraction of 6%, soaking the rice hull powder for 40min at 40 ℃ in a heat preservation environment, adding a silane coupling agent and sodium dodecyl benzene sulfonate, stirring the mixture for 60min, washing the mixture by using clear water, and drying the washed mixture;
s3: preparing glass fiber, asbestos and molybdenum disulfide into a filling material according to the proportion of 2:2: 1;
s4: adding polystyrene, rice hull powder and a filler into a heat treatment device according to the mass percentage, introducing saturated steam into the heat treatment device, heating to 135 ℃, preserving heat for 10min, taking out materials in the heat treatment device, and standing at room temperature for twelve hours to obtain a pretreated raw material;
s5: adding the pretreated raw material obtained in the step S4, a plasticizer, a hardening agent, a coloring agent and a stabilizer into a forming machine according to mass percentage for hot press forming, and cooling after forming to obtain the environment-friendly polystyrene and rice hull powder composite material.
Wherein the pressure of the saturated steam introduced into the heat treatment device is 200-300 kPa.
Example two
The invention provides a technical scheme that: the environment-friendly composite material of polystyrene and rice hull powder comprises the following components in percentage by mass:
33% of polystyrene;
24% of rice hull powder;
23% of filling material, which is prepared by glass fiber, asbestos and molybdenum disulfide according to the proportion of 2:2: 1;
4% of a plasticizer, in particular dibutyl phthalate;
3% of a hardening agent, specifically hexamethylenetetramine;
4% of colorant, which is prepared by blending various pigments;
5% of stabilizer, 3% of lubricant and the balance of water.
The polystyrene is a waste polystyrene board recovery material, is washed, dried and then crushed, and has a particle size smaller than 1 cm after crushing, and the colorant is a fluorescent or phosphorescent pigment.
The preparation method of the environment-friendly composite material of polystyrene and rice hull powder comprises the following steps:
s1: the recycled polystyrene board is recycled, washed, dried and crushed, and the particle size of the crushed polystyrene board is less than 1 cm;
s2: drying the rice hull powder at 100 ℃ for 2h, crushing the rice hull powder after drying until the grain size is smaller than 5 mm, adding the rice hull powder into a sodium hydroxide solution with the mass fraction of 6%, soaking the rice hull powder for 40min at 40 ℃ in a heat preservation environment, adding a silane coupling agent and sodium dodecyl benzene sulfonate, stirring the mixture for 60min, washing the mixture by using clear water, and drying the washed mixture;
s3: preparing glass fiber, asbestos and molybdenum disulfide into a filling material according to the proportion of 2:2: 1;
s4: adding polystyrene, rice hull powder and a filler into a heat treatment device according to the mass percentage, introducing saturated steam into the heat treatment device, heating to 135 ℃, preserving heat for 10min, taking out materials in the heat treatment device, and standing at room temperature for twelve hours to obtain a pretreated raw material;
s5: adding the pretreated raw material obtained in the step S4, a plasticizer, a hardening agent, a coloring agent and a stabilizer into a forming machine according to mass percentage for hot press forming, and cooling after forming to obtain the environment-friendly polystyrene and rice hull powder composite material.
Wherein the pressure of the saturated steam introduced into the heat treatment device is 200-300 kPa.
EXAMPLE III
The invention provides a technical scheme that: the environment-friendly composite material of polystyrene and rice hull powder comprises the following components in percentage by mass:
31% of polystyrene;
23% of rice hull powder;
26% of filling material, wherein the filling material is prepared from glass fiber, asbestos and molybdenum disulfide in a ratio of 2:2: 1;
4% of a plasticizer, in particular dibutyl phthalate;
3% of a hardening agent, specifically hexamethylenetetramine;
4% of colorant, which is prepared by blending various pigments;
5% of stabilizer, 3% of lubricant and the balance of water.
The polystyrene is a waste polystyrene board recovery material, is washed, dried and then crushed, and has a particle size smaller than 1 cm after crushing, and the colorant is a fluorescent or phosphorescent pigment.
The preparation method of the environment-friendly composite material of polystyrene and rice hull powder comprises the following steps:
s1: the recycled polystyrene board is recycled, washed, dried and crushed, and the particle size of the crushed polystyrene board is less than 1 cm;
s2: drying the rice hull powder at 100 ℃ for 2h, crushing the rice hull powder after drying until the grain size is smaller than 5 mm, adding the rice hull powder into a sodium hydroxide solution with the mass fraction of 6%, soaking the rice hull powder for 40min at 40 ℃ in a heat preservation environment, adding a silane coupling agent and sodium dodecyl benzene sulfonate, stirring the mixture for 60min, washing the mixture by using clear water, and drying the washed mixture;
s3: preparing glass fiber, asbestos and molybdenum disulfide into a filling material according to the proportion of 2:2: 1;
s4: adding polystyrene, rice hull powder and a filler into a heat treatment device according to the mass percentage, introducing saturated steam into the heat treatment device, heating to 135 ℃, preserving heat for 10min, taking out materials in the heat treatment device, and standing at room temperature for twelve hours to obtain a pretreated raw material;
s5: adding the pretreated raw material obtained in the step S4, a plasticizer, a hardening agent, a coloring agent and a stabilizer into a forming machine according to mass percentage for hot press forming, and cooling after forming to obtain the environment-friendly polystyrene and rice hull powder composite material.
Wherein the pressure of the saturated steam introduced into the heat treatment device is 200-300 kPa.
Through comparative experiments on the three groups of examples, the three groups of examples can provide an environment-friendly composite material of polystyrene and rice husk powder, and through comparative experiments, the toughness of the environment-friendly composite material of polystyrene and rice husk powder prepared in the first example is poor, the toughness of the environment-friendly composite material of polystyrene and rice husk powder prepared in the second example is optimal, and the brittleness of the environment-friendly composite material of polystyrene and rice husk powder prepared in the third example is worst, so that the second example has the best effect.
The invention has reasonable structural design, and uses the environment-friendly composite material prepared by adding a proper amount of glass fiber and asbestos into the environment-friendly composite material of polystyrene and rice hull powder and preparing the filler in a ratio of 2:2:1, the toughness of the environment-friendly composite material is effectively improved through the glass fiber in the filler, the heat resistance of the environment-friendly composite material is effectively improved through the asbestos, the abrasion resistance and wear resistance of the environment-friendly composite material are improved through the molybdenum disulfide, thereby effectively prolonging the actual service life of the environment-friendly composite material, improving the glossiness of the surface of the material by adding fluorescent or phosphorescent pigment, thereby effectively improving the aesthetic property of the rice hull powder, and treating the rice hull powder sequentially by a sodium hydroxide solution, a silane coupling agent and sodium dodecyl benzene sulfonate, thereby softening the hard fibers in the rice hull powder and effectively improving the overall flexibility of the environment-friendly composite material.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. Polystyrene, rice husk powder environmental protection combined material, its characterized in that: comprises (by mass percent):
30-40% of polystyrene;
20-30% of rice hull powder;
15-30% of filling material, which is prepared by glass fiber, asbestos and molybdenum disulfide according to the proportion of 2:2: 1;
3-6% of a plasticizer, specifically dibutyl phthalate;
2-4% of a hardening agent, which is specifically hexamethylenetetramine;
3-7% of colorant, which is prepared by blending various pigments;
5-7% of stabilizer, 2-4% of lubricant and the balance of water.
2. The polystyrene, rice hull powder environment-friendly composite material according to claim 1, characterized in that: comprises (by mass percent):
35% of polystyrene;
25% of rice hull powder;
20% of filling material, which is prepared by glass fiber, asbestos and molybdenum disulfide according to the proportion of 2:2: 1;
4% of a plasticizer, in particular dibutyl phthalate;
3% of a hardening agent, specifically hexamethylenetetramine;
4% of colorant, which is prepared by blending various pigments;
5% of stabilizer, 3% of lubricant and the balance of water.
3. The polystyrene, rice hull powder environment-friendly composite material according to claim 1, characterized in that: comprises (by mass percent):
33% of polystyrene;
24% of rice hull powder;
23% of filling material, which is prepared by glass fiber, asbestos and molybdenum disulfide according to the proportion of 2:2: 1;
4% of a plasticizer, in particular dibutyl phthalate;
3% of a hardening agent, specifically hexamethylenetetramine;
4% of colorant, which is prepared by blending various pigments;
5% of stabilizer, 3% of lubricant and the balance of water.
4. The polystyrene, rice hull powder environment-friendly composite material according to claim 1, characterized in that: comprises (by mass percent):
31% of polystyrene;
23% of rice hull powder;
26% of filling material, wherein the filling material is prepared from glass fiber, asbestos and molybdenum disulfide in a ratio of 2:2: 1;
4% of a plasticizer, in particular dibutyl phthalate;
3% of a hardening agent, specifically hexamethylenetetramine;
4% of colorant, which is prepared by blending various pigments;
5% of stabilizer, 3% of lubricant and the balance of water.
5. The polystyrene, rice hull powder environment-friendly composite material according to claim 1, characterized in that: the polystyrene is a waste polystyrene board recovery material, is cleaned, aired and then crushed, and the particle size of the crushed polystyrene is less than 1 cm.
6. The polystyrene, rice hull powder environment-friendly composite material according to claim 1, characterized in that: the rice hull powder is dried at 90-100 ℃ for 2-3h, and is crushed to the grain diameter of less than 5 mm after being dried, then is added into a sodium hydroxide solution with the mass fraction of 5-10%, is soaked for 30-60min at 30-40 ℃, then is added with a silane coupling agent and sodium dodecyl benzene sulfonate, is stirred for 50-100min, and is washed by clear water and is dried to obtain the modified rice hull powder.
7. The polystyrene, rice hull powder environment-friendly composite material according to claim 1, characterized in that: the colorant is a fluorescent or phosphorescent pigment.
8. A method for preparing the environment-friendly composite material of the polystyrene and the rice hull powder according to any one of claims 1 to 7, wherein the process comprises the following steps:
s1: the recycled polystyrene board is recycled, washed, dried and crushed, and the particle size of the crushed polystyrene board is less than 1 cm;
s2: drying the rice hull powder at 100 ℃ for 2h, crushing the rice hull powder after drying until the grain size is smaller than 5 mm, adding the rice hull powder into a sodium hydroxide solution with the mass fraction of 6%, soaking the rice hull powder for 40min at 40 ℃ in a heat preservation environment, adding a silane coupling agent and sodium dodecyl benzene sulfonate, stirring the mixture for 60min, washing the mixture by using clear water, and drying the washed mixture;
s3: preparing glass fiber, asbestos and molybdenum disulfide into a filling material according to the proportion of 2:2: 1;
s4: adding polystyrene, rice hull powder and a filler into a heat treatment device according to the mass percentage, introducing saturated steam into the heat treatment device, heating to 135 ℃, preserving heat for 10min, taking out materials in the heat treatment device, and standing at room temperature for twelve hours to obtain a pretreated raw material;
s5: adding the pretreated raw material obtained in the step S4, a plasticizer, a hardening agent, a coloring agent and a stabilizer into a forming machine according to mass percentage for hot press forming, and cooling after forming to obtain the environment-friendly polystyrene and rice hull powder composite material.
9. The method for preparing environment-friendly polystyrene and rice hull powder composite material as recited in claim 8, wherein the pressure of the saturated steam introduced into the heat treatment device is 200-300 kPa.
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| 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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Application publication date: 20210202 |