CN110982292A - Waste tire rubber powder and agricultural straw filled plastic-wood composite section - Google Patents
Waste tire rubber powder and agricultural straw filled plastic-wood composite section Download PDFInfo
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- CN110982292A CN110982292A CN201911206181.2A CN201911206181A CN110982292A CN 110982292 A CN110982292 A CN 110982292A CN 201911206181 A CN201911206181 A CN 201911206181A CN 110982292 A CN110982292 A CN 110982292A
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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
- C08L97/00—Compositions of lignin-containing materials
- C08L97/02—Lignocellulosic material, e.g. wood, straw or bagasse
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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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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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
- C08K3/32—Phosphorus-containing compounds
- C08K2003/321—Phosphates
- C08K2003/322—Ammonium phosphate
- C08K2003/323—Ammonium polyphosphate
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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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
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/20—Recycled plastic
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Abstract
The invention provides a waste tire rubber powder and agricultural straw filled type plastic-wood composite profile, which relates to the field of plastic-wood composite materials and comprises the following components in parts by weight: 60-80 parts of agricultural straw, 20-40 parts of polyethylene glycol terephthalate, 20-40 parts of polyolefin plastic powder, 20-40 parts of waste tire rubber powder, 10-20 parts of gutta-percha, 10-30 parts of starch-coated calcium carbonate, 5-10 parts of polyethylene wax, 1-5 parts of maleic anhydride graft polymer, 0.1-2 parts of silane coupling agent, 1-10 parts of needle-shaped wollastonite, 10-20 parts of reinforced fiber, 1-5 parts of microencapsulated ammonium polyphosphate, 1-2 parts of rosin pentaerythritol ester, 0.1-1 part of antimony tri (stearate) heat stabilizer and 0.1-1 part of AMB impact modifier, and the plastic-wood composite section prepared by the invention has extremely excellent mechanical property, and the flame-retardant and moisture-proof effects also prove that the addition of the waste tire rubber powder and the gutta percha has great benefits for improving the mechanical properties of the plastic-wood composite section.
Description
Technical Field
The invention relates to the field of plastic-wood composite materials, in particular to a waste tire rubber powder and agricultural straw filled type plastic-wood composite section.
Background
The plastic-wood material is also changed into wood-plastic material, is a novel composite material which is briskly developed in recent years at home and abroad, generally refers to a novel wood material which is prepared by mixing polyethylene, polypropylene, polyvinyl chloride and the like instead of common resin adhesives with more than 35-70% of waste plant fibers such as wood flour, rice hulls, straws and the like, and then carrying out plastic processing technologies such as extrusion, mould pressing, injection molding and the like to produce a plate or a section, and is mainly used for industries such as building materials, furniture, logistics packaging and the like. The board is made by mixing plastic and wood powder according to a certain proportion and then performing hot extrusion molding, and is called as an extruded wood-plastic composite board.
The wood-plastic material contains plastics, so that the wood-plastic material has a better elastic modulus. In addition, the fiber is contained and is fully mixed with the plastic, so the wood composite material has physical and mechanical properties of compression resistance, bending resistance and the like which are equivalent to those of hardwood, and the durability of the wood composite material is obviously superior to that of common wood materials. The surface hardness is high, generally 2-5 times of that of wood, and the wood is waterproof and moistureproof. The problems that the wooden product is easy to rot and expand and deform after absorbing water and being damped in a moist and watery environment are fundamentally solved, the wooden product can be used in an environment where traditional wooden products cannot be applied, and the wooden product has a very wide application prospect.
However, since the plastic-wood product is a poor thermal conductor, the surface layer and the interior of the plastic-wood product are heated unevenly under the change of the external environment temperature, internal stress is easily generated, expansion, contraction, deformation and the like are caused, the service life of the plastic-wood product is shortened as a result of long-term action, and the conditions of fracture, cracking and the like are caused seriously.
The main component of the wood flour is cellulose, the cellulose contains a large amount of hydroxyl, and the hydroxyl forms intermolecular hydrogen bonds or intramolecular hydrogen bonds, so that the wood flour has water absorption, the moisture absorption rate can reach 8-12%, and the wood flour has strong polarity; most of thermoplastic plastics are nonpolar and have hydrophobicity, so the compatibility between the thermoplastic plastics and the thermoplastic plastics is poor, the interfacial adhesion force is very small, the compatibility between wood powder and plastic components and fillers is poor, the bonding force between materials is not strong, and the strength of the manufactured plastic-wood product cannot be ensured, which is a problem to be solved at present.
Chinese patent CN 102277000A discloses a wood-plastic composite section prepared by utilizing waste polyethylene and a preparation method thereof. The wood-plastic composite section comprises the following components in percentage by weight: 100 parts of wood fiber powder, 0.5-1.2 parts of stearic acid, 15-20 parts of waste polyethylene plastic, 3-5 parts of a phase solvent, 2-3 parts of a lubricant, 0.2-0.6 part of an anti-ultraviolet agent, 3-5 parts of a coloring agent, 2-4 parts of CPE and 8-12 parts of calcium carbonate; the preparation method comprises mixing the dried wood fiber powder at high speed to 80 deg.C, adding stearic acid, and mixing at high speed to 130 deg.C; adding the rest components, uniformly mixing, adding into a parallel double-screw granulator, plasticizing at 140-220 ℃, extruding and crushing to obtain granules; and (4) extruding and molding the particles. The polyethylene-based wood-plastic composite material prepared by the method has excellent comprehensive performance and good processing performance, and the preparation method is simple to operate, low in cost and easy to implement industrially.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a waste tire rubber powder and agricultural straw filled plastic-wood composite section.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme:
a waste tire rubber powder and agricultural straw filled plastic-wood composite section comprises the following components in parts by weight:
60-80 parts of agricultural straw, 20-40 parts of polyethylene glycol terephthalate, 20-40 parts of polyolefin plastic powder, 20-40 parts of waste tire rubber powder, 10-20 parts of gutta-percha, 10-30 parts of starch-coated calcium carbonate, 5-10 parts of polyethylene wax, 1-5 parts of maleic anhydride graft polymer, 0.1-2 parts of silane coupling agent, 1-10 parts of needle-shaped wollastonite, 10-20 parts of reinforcing fiber, 1-5 parts of microencapsulated ammonium polyphosphate, 1-2 parts of rosin pentaerythritol ester, 0.1-1 part of antimony tri (stearate) heat stabilizer and 0.1-1 part of AMB impact modifier.
Further, the paint comprises the following components in parts by weight:
70 parts of agricultural straw, 20 parts of polyethylene terephthalate, 40 parts of polyolefin plastic powder, 25 parts of waste tire rubber powder, 20 parts of eucommia ulmoides gum, 20 parts of starch-coated calcium carbonate, 5 parts of polyethylene wax, 2 parts of maleic anhydride grafted polymer, 1 part of silane coupling agent, 5 parts of needle-shaped wollastonite, 10 parts of reinforcing fiber, 2 parts of microencapsulated ammonium polyphosphate, 1 part of rosin pentaerythritol ester, 0.5 part of antimony tri (stearate) heat stabilizer and 1 part of AMB impact modifier.
Further, the paint comprises the following components in parts by weight:
80 parts of agricultural straw, 40 parts of polyethylene terephthalate, 30 parts of polyolefin plastic powder, 20 parts of waste tire rubber powder, 15 parts of eucommia ulmoides gum, 20 parts of starch-coated calcium carbonate, 10 parts of polyethylene wax, 2 parts of maleic anhydride grafted polymer, 2 parts of silane coupling agent, 1 part of needle-shaped wollastonite, 12 parts of reinforcing fiber, 5 parts of microencapsulated ammonium polyphosphate, 1 part of rosin pentaerythritol ester, 1 part of antimony tri (stearate) heat stabilizer and 0.2 part of AMB impact modifier.
Furthermore, the agricultural straw is any one of wheat straw, rice straw, corn straw, rape straw, cotton straw and sugarcane straw.
Further, the preparation method of the starch-coated calcium carbonate comprises the following steps:
preparing starch into suspension with a certain concentration, heating to 90-95 ℃ for gelatinization for 60-80min, adjusting the pH of the solution to 10-11 by using NaOH solution, adding a certain amount of palmitic acid, carrying out heat preservation reaction for 30-50min, adding calcium carbonate powder, stirring and mixing uniformly, adjusting the rotating speed to 400-600r/min, pouring the reaction solution into ammonium sulfate solution under mechanical stirring, adjusting the rotating speed to 40-60r/min after pouring, stirring for 10-15h, filtering, washing with water and drying.
Further, the mass of the added palmitic acid is 10-15% of the mass of the starch.
Further, the maleic anhydride grafted polymer is any one of maleic anhydride grafted ABS, maleic anhydride grafted PP, maleic anhydride grafted SBS, maleic anhydride grafted SEBS, maleic anhydride grafted EVA, maleic anhydride grafted PE and maleic anhydride grafted POE.
Further, the reinforcing fiber is any one of basalt fiber, glass fiber, carbon fiber, boron fiber and tetrapod-like zinc oxide whisker.
The preparation method of the waste tire rubber powder and agricultural straw filled plastic-wood composite section comprises the following steps:
(1) crushing agricultural straws, pretreating the crushed agricultural straws with NaOH solution, washing the crushed agricultural straws with water, drying the crushed agricultural straws, and blasting the crushed agricultural straws with a straw blasting machine;
(2) adding the agricultural straw, polyethylene glycol terephthalate, polyolefin plastic powder, waste tire rubber powder, gutta percha, starch-coated calcium carbonate, polyethylene wax, maleic anhydride grafted polymer, silane coupling agent, needle-shaped wollastonite and reinforcing fiber into a stirrer, and uniformly mixing to obtain a mixture;
(3) and adding the mixture, microencapsulated ammonium polyphosphate, rosin pentaerythritol ester, antimony tri (stearate) heat stabilizer and AMB impact modifier into a mixing roll for mixing, and performing compression molding treatment on the mixed material.
Further, the preparation method comprises the following steps:
(1) crushing agricultural straws, pretreating the crushed agricultural straws for 20 to 25 hours by using a NaOH solution with the mass concentration of 0.5 to 2 percent, drying the crushed agricultural straws after washing, putting the crushed agricultural straws into a straw blasting machine for 50 to 100 seconds under the pressure of 2 to 5MPa, and performing blasting by releasing pressure within 0.00875 s;
(2) adding the agricultural straw, polyethylene glycol terephthalate, polyolefin plastic powder, waste tire rubber powder, gutta-percha, starch-coated calcium carbonate, polyethylene wax, maleic anhydride grafted polymer, silane coupling agent, needle-shaped wollastonite and reinforcing fiber into a stirrer, and stirring at 600-800r/min and 80-90 ℃ for 10-30min to obtain a mixture;
(3) and adding the mixture, the microencapsulated ammonium polyphosphate, the rosin pentaerythritol ester, the antimony tri (stearate) heat stabilizer and the AMB impact modifier into a mixing roll, mixing for 5-10min at the temperature of 165-175 ℃, discharging, and placing the material into a flat vulcanizing machine for compression molding treatment, wherein the compression molding treatment temperature is 170-180 ℃, the pressure is 10-15MPa, and the time is 10-15 min.
(III) advantageous effects
The invention provides a waste tire rubber powder and agricultural straw filled plastic-wood composite section, which has the following beneficial effects:
the agricultural straw has wide sources, can greatly reduce the cost by replacing wood flour, is beneficial to recycling waste, and because the plastic-wood material is a poor thermal conductor, the surface layer and the inside are heated unevenly under the change of the external environment temperature, and the expansion, the contraction and the deformation are easily caused by the internal stress, the waste tire rubber powder is added in the invention, and the waste tire rubber powder is connected in the plastic-wood material through a gel film to form a semi-solid connecting system with high viscosity and elasticity, so that the internal stress generated by the change of the external environment temperature can be counteracted, the mechanical property of the plastic-wood composite section can be improved, the gutta percha is an excellent polymer material with rubber-plastic dual property, the atomic arrangement is symmetrical, the molecules can be regularly discharged into a crystal structure, macromolecular chains are oriented and crystallized along the stress direction when being heated, the deformation resistance of the plastic-wood composite section is improved, and the maleic anhydride grafted polymer mainly plays the role of a bridge in the plastic-wood, by reducing the interface energy among different materials, the dispersion among the filler molecules, the straws, the plastic and the rubber is promoted, the mechanical entanglement among the high polymer and the straws is enhanced to enhance the interface affinity, thereby integrally improving the performance of the plastic-wood composite section, the plastic-wood composite section of the invention is waterproof and moistureproof, fundamentally solves the problems that a wood product is easy to rot and expand and deform after absorbing water and being affected with damp in a humid and watery environment, also prevents insects and termites, effectively stops insect harassment, has longer service life compared with the common wood-plastic material, the plastic wood has strong plasticity, can very simply realize personalized modeling, fully embodies the personalized style, has high environmental protection, no pollution, no public nuisance and recycling, greatly saves the use amount of wood, benefits the society, does not crack, expand or deform, does not need maintenance and curing, is convenient to clean, and saves the later maintenance and care cost.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but 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 1:
a waste tire rubber powder and agricultural straw filled plastic-wood composite section comprises the following components in parts by weight:
70 parts of wheat straw, 20 parts of polyethylene terephthalate, 40 parts of polyolefin plastic powder, 25 parts of waste tire rubber powder, 20 parts of eucommia ulmoides gum, 20 parts of starch-coated calcium carbonate, 5 parts of polyethylene wax, 2 parts of maleic anhydride grafted ABS, 1 part of a silane coupling agent, 5 parts of needle-shaped wollastonite, 10 parts of basalt fiber, 2 parts of microencapsulated ammonium polyphosphate, 1 part of rosin pentaerythritol ester, 0.5 part of antimony tri (stearate) heat stabilizer and 1 part of AMB impact modifier.
The preparation method of the starch-coated calcium carbonate comprises the following steps:
preparing starch into suspension with a certain concentration, heating to 95 ℃ for gelatinization for 60min, adjusting the pH of the solution to 10-11 by using NaOH solution, adding a certain amount of palmitic acid, wherein the mass of the added palmitic acid is 12% of the mass of the starch, keeping the temperature for reaction for 40min, adding calcium carbonate powder, stirring and mixing uniformly, adjusting the rotating speed to 600r/min, pouring the reaction solution into ammonium sulfate solution under mechanical stirring, adjusting the rotating speed to 50r/min after pouring, stirring for 12h, filtering, washing with water, and drying.
The preparation method comprises the following steps:
crushing wheat straws, pretreating the crushed wheat straws with a NaOH solution with the mass concentration of 1% for 20 hours, washing the crushed wheat straws with water, drying the crushed wheat straws, maintaining the pressure in a straw blasting machine for 100 seconds at 4MPa, and relieving the pressure in 0.00875s for blasting, wherein the wheat straws, the polyethylene glycol terephthalate, the polyolefin plastic powder, the waste tire rubber powder, the gutta percha, the starch-coated calcium carbonate, the polyethylene wax, the maleic anhydride grafted ABS, the silane coupling agent, the needle-shaped wollastonite and the basalt fiber are added into a stirrer, the mixture is stirred at 600r/min and 80 ℃ for 20 minutes to obtain a mixture, the microencapsulated ammonium polyphosphate, the rosin pentaerythritol ester, the tristearic acid antimony heat stabilizer and the AMB impact modifier are added into a mixing roll, the mixture is mixed for 10 minutes at 170 ℃, the discharge is carried out, the material is placed into a flat vulcanizing machine for compression molding treatment, the compression molding treatment temperature is 180 ℃, the pressure is 10MPa and the time is 10 min.
Example 2:
a waste tire rubber powder and agricultural straw filled plastic-wood composite section comprises the following components in parts by weight:
80 parts of cotton straw, 40 parts of polyethylene terephthalate, 30 parts of polyolefin plastic powder, 20 parts of waste tire rubber powder, 15 parts of eucommia ulmoides gum, 20 parts of starch-coated calcium carbonate, 10 parts of polyethylene wax, 2 parts of maleic anhydride grafted SEBS (styrene-ethylene-butadiene-styrene), 2 parts of a silane coupling agent, 1 part of needle-like wollastonite, 12 parts of carbon fiber, 5 parts of microencapsulated ammonium polyphosphate, 1 part of rosin pentaerythritol ester, 1 part of antimony tri (stearate) heat stabilizer and 0.2 part of AMB impact modifier.
The preparation method of the starch-coated calcium carbonate comprises the following steps:
preparing starch into suspension with a certain concentration, heating to 90 ℃ for gelatinization for 65min, adjusting the pH of the solution to 10-11 by using NaOH solution, adding a certain amount of palmitic acid, wherein the mass of the added palmitic acid is 15% of the mass of the starch, keeping the temperature for reaction for 50min, adding calcium carbonate powder, stirring and mixing uniformly, adjusting the rotating speed to 500r/min, pouring the reaction solution into ammonium sulfate solution under mechanical stirring, adjusting the rotating speed to 40r/min after pouring, stirring for 15h, filtering, washing with water, and drying.
The preparation method comprises the following steps:
crushing cotton straws, pretreating the crushed cotton straws with a NaOH solution with the mass concentration of 1% for 20 hours, washing the crushed cotton straws with water, drying the crushed cotton straws, putting the crushed cotton straws in a straw blasting machine, maintaining the pressure for 100 seconds under the pressure of 2MPa, and releasing the pressure for blasting within 0.00875 seconds, wherein the cotton straws, the polyethylene glycol terephthalate, the polyolefin plastic powder, the waste tire rubber powder, the gutta percha, the starch-coated calcium carbonate, the polyethylene wax, the maleic anhydride grafted SEBS, the silane coupling agent, the needle-shaped wollastonite and the carbon fibers are added into a stirrer, the mixture is stirred for 15 minutes at the temperature of 600r/min and 80 ℃ to obtain a mixture, the microencapsulated ammonium polyphosphate, the rosin pentaerythritol ester, the antimony tristearate and the AMB impact modifier are added into a mixing roll, the mixture is mixed for 10 minutes at the temperature of 165 ℃, the mixture is placed in a flat vulcanizing machine for compression molding treatment, the compression molding treatment temperature, the time period is 12 min.
Example 3:
a waste tire rubber powder and agricultural straw filled plastic-wood composite section comprises the following components in parts by weight:
60 parts of rape straw, 20 parts of polyethylene terephthalate, 30 parts of polyolefin plastic powder, 20 parts of waste tire rubber powder, 12 parts of eucommia ulmoides gum, 30 parts of starch-coated calcium carbonate, 10 parts of polyethylene wax, 3 parts of maleic anhydride grafted POE, 2 parts of a silane coupling agent, 2 parts of needle-shaped wollastonite, 10 parts of glass fiber, 1 part of microencapsulated ammonium polyphosphate, 1 part of rosin pentaerythritol ester, 0.5 part of antimony tri (stearate) heat stabilizer and 1 part of AMB impact modifier.
The preparation method of the starch-coated calcium carbonate comprises the following steps:
preparing starch into suspension with a certain concentration, heating to 95 ℃ for gelatinization for 75min, adjusting the pH of the solution to 10-11 by using NaOH solution, adding a certain amount of palmitic acid, wherein the mass of the added palmitic acid is 10% of the mass of the starch, keeping the temperature for reaction for 30min, adding calcium carbonate powder, stirring and mixing uniformly, adjusting the rotating speed to 400r/min, pouring the reaction solution into ammonium sulfate solution under mechanical stirring, adjusting the rotating speed to 40r/min after pouring, stirring for 12h, filtering, washing with water, and drying.
The preparation method comprises the following steps:
crushing rape straws, pretreating the crushed rape straws with a NaOH solution with the mass concentration of 1.5% for 25 hours, washing the crushed rape straws with water, drying the crushed rape straws, putting the crushed rape straws into a straw blasting machine, maintaining the pressure for 50 seconds under the pressure of 4MPa, and relieving the pressure for blasting within 0.00875 seconds, wherein the rape straws, the polyethylene terephthalate, the polyolefin plastic powder, the waste tire rubber powder, the gutta percha, the starch-coated calcium carbonate, the polyethylene wax, the maleic anhydride grafted POE, the silane coupling agent, the needle-shaped wollastonite and the glass fiber are added into a stirrer, stirring is carried out for 10 minutes at 800r/min and 90 ℃ to obtain a mixture, the microencapsulated ammonium polyphosphate, the rosin pentaerythritol ester, the antimony tri (stearate) heat stabilizer and the AMB impact modifier are added into a mixing roll, mixed for 10 minutes at 165 ℃ and then discharged, the material is placed into a flat vulcanizing machine for compression molding, the compression molding temperature is 170 ℃, and the, the time is 10 min.
Example 4:
a waste tire rubber powder and agricultural straw filled plastic-wood composite section comprises the following components in parts by weight:
80 parts of sugarcane straw, 40 parts of polyethylene terephthalate, 40 parts of polyolefin plastic powder, 40 parts of waste tire rubber powder, 20 parts of eucommia ulmoides gum, 30 parts of starch-coated calcium carbonate, 10 parts of polyethylene wax, 5 parts of maleic anhydride grafted PE, 2 parts of a silane coupling agent, 10 parts of needle-shaped wollastonite, 20 parts of tetrapod-shaped zinc oxide whiskers, 5 parts of microencapsulated ammonium polyphosphate, 2 parts of rosin pentaerythritol ester, 1 part of antimony tri (stearate) heat stabilizer and 1 part of AMB impact modifier.
The preparation method of the starch-coated calcium carbonate comprises the following steps:
preparing starch into suspension with a certain concentration, heating to 95 ℃ for gelatinization for 80min, adjusting the pH of the solution to 10-11 by using NaOH solution, adding a certain amount of palmitic acid, wherein the mass of the added palmitic acid is 15% of the mass of the starch, keeping the temperature for reaction for 50min, adding calcium carbonate powder, stirring and mixing uniformly, adjusting the rotating speed to 600r/min, pouring the reaction solution into ammonium sulfate solution under mechanical stirring, adjusting the rotating speed to 60r/min after pouring, stirring for 15h, filtering, washing with water, and drying.
The preparation method comprises the following steps:
crushing sugarcane straws, pretreating the crushed sugarcane straws with a 2% NaOH solution for 25 hours, washing the crushed sugarcane straws with water, drying the crushed sugarcane straws, placing the crushed sugarcane straws in a straw blasting machine, keeping the pressure for 100 seconds at 5MPa, and relieving the pressure for blasting within 0.00875 seconds, wherein the sugarcane straws, the polyethylene glycol terephthalate, the polyolefin plastic powder, the waste tire rubber powder, the gutta percha, the starch-coated calcium carbonate, the polyethylene wax, the maleic anhydride grafted PE, the silane coupling agent, the needle-shaped wollastonite and the tetrapod-shaped zinc oxide whisker are added into a stirrer, the mixture is stirred at 800r/min and 90 ℃ for 30min to obtain a mixture, the microencapsulated ammonium polyphosphate, the rosin pentaerythritol ester, the antimony tristearate heat stabilizer and the AMB impact modifier are added into a mixing roll, mixed for 10min at 175 ℃, the discharge is carried out, the material is placed in a flat vulcanizing machine for compression molding treatment, the compression molding treatment temperature is 180 ℃, the pressure is 15MPa and the time is 15 min.
Example 5:
a waste tire rubber powder and agricultural straw filled plastic-wood composite section comprises the following components in parts by weight:
75 parts of cotton straw, 20 parts of polyethylene terephthalate, 30 parts of polyolefin plastic powder, 20 parts of waste tire rubber powder, 10 parts of gutta-percha, 25 parts of starch-coated calcium carbonate, 5 parts of polyethylene wax, 1 part of maleic anhydride grafted EVA (ethylene vinyl acetate), 0.1 part of silane coupling agent, 1 part of needle-shaped wollastonite, 10 parts of boron fiber, 1 part of microencapsulated ammonium polyphosphate, 1 part of rosin pentaerythritol ester, 0.1 part of antimony tri (stearate) heat stabilizer and 0.1 part of AMB impact modifier.
The preparation method of the starch-coated calcium carbonate comprises the following steps:
preparing starch into suspension with a certain concentration, heating to 90 ℃ for gelatinization for 80min, adjusting the pH of the solution to 10-11 by using NaOH solution, adding a certain amount of palmitic acid, wherein the mass of the added palmitic acid is 10% of the mass of the starch, keeping the temperature for reaction for 40min, adding calcium carbonate powder, stirring and mixing uniformly, adjusting the rotating speed to 400r/min, pouring the reaction solution into ammonium sulfate solution under mechanical stirring, adjusting the rotating speed to 40r/min after pouring, stirring for 15h, filtering, washing with water, and drying.
The preparation method comprises the following steps:
crushing cotton straws, pretreating the crushed cotton straws with a NaOH solution with the mass concentration of 1% for 25 hours, washing the crushed cotton straws with water, drying the crushed cotton straws, putting the crushed cotton straws in a straw blasting machine, maintaining the pressure for 50 seconds under the pressure of 2MPa, and releasing the pressure for blasting within 0.00875 seconds, wherein the cotton straws, the polyethylene glycol terephthalate, the polyolefin plastic powder, the waste tire rubber powder, the gutta percha, the starch-coated calcium carbonate, the polyethylene wax, the maleic anhydride grafted EVA, the silane coupling agent, the needle-shaped wollastonite and the boron fiber are added into a stirrer, the mixture is obtained by stirring at 600r/min and 80 ℃ for 10min, the mixture, the microencapsulated ammonium polyphosphate, the rosin pentaerythritol ester, the tri (stearic acid) antimony heat stabilizer and the AMB impact modifier are added into a mixing roll, the mixture is mixed for 10min at 170 ℃, the mixture is placed in a flat vulcanizing machine for compression molding treatment, the compression molding treatment temperature is 180 ℃, and the, the time is 10 min.
Example 6:
a waste tire rubber powder and agricultural straw filled plastic-wood composite section comprises the following components in parts by weight:
80 parts of rice straw, 20 parts of polyethylene terephthalate, 20 parts of polyolefin plastic powder, 20 parts of waste tire rubber powder, 10 parts of gutta-percha, 10 parts of starch-coated calcium carbonate, 5 parts of polyethylene wax, 1 part of maleic anhydride grafted PP, 0.1 part of silane coupling agent, 1 part of needle-shaped wollastonite, 10 parts of carbon fiber, 1 part of microencapsulated ammonium polyphosphate, 1 part of rosin pentaerythritol ester, 0.1 part of antimony tri (stearate) heat stabilizer and 0.1 part of AMB impact modifier.
The preparation method of the starch-coated calcium carbonate comprises the following steps:
preparing starch into suspension with a certain concentration, heating to 90 ℃ for gelatinization for 60min, adjusting the pH of the solution to 10-11 by using NaOH solution, adding a certain amount of palmitic acid, wherein the mass of the added palmitic acid is 10% of the mass of the starch, keeping the temperature for reaction for 30min, adding calcium carbonate powder, stirring and mixing uniformly, adjusting the rotating speed to 400r/min, pouring the reaction solution into ammonium sulfate solution under mechanical stirring, adjusting the rotating speed to 40r/min after pouring, stirring for 10h, filtering, washing with water, and drying.
The preparation method comprises the following steps:
crushing rice straws, pretreating the crushed rice straws with 0.5% NaOH solution for 20 hours, washing the crushed rice straws with water, drying the crushed rice straws, putting the crushed rice straws into a straw blasting machine, maintaining the pressure for 50 seconds under the pressure of 2MPa, and releasing the pressure for blasting within 0.00875s, wherein the rice straws, the polyethylene terephthalate, the polyolefin plastic powder, the waste tire rubber powder, the gutta percha, the starch-coated calcium carbonate, the polyethylene wax, the maleic anhydride grafted PP, the silane coupling agent, the needle-shaped wollastonite and the carbon fibers are added into a stirrer, the mixture is stirred for 10min at the temperature of 600r/min and 80 ℃ to obtain a mixture, the microencapsulated ammonium polyphosphate, the rosin pentaerythritol ester, the antimony tri (stearate) and the AMB impact modifier are added into a mixing roll, mixed for 5min at the temperature of 165 ℃ and the pressure of 10MPa, the mixture is placed into a flat vulcanizing machine for compression molding treatment, the compression molding temperature is 170 ℃, and, the time is 10 min.
Example 7:
a waste tire rubber powder and agricultural straw filled plastic-wood composite section comprises the following components in parts by weight:
60 parts of corn straws, 40 parts of polyethylene terephthalate, 30 parts of polyolefin plastic powder, 25 parts of waste tire rubber powder, 10 parts of eucommia ulmoides gum, 20 parts of starch-coated calcium carbonate, 10 parts of polyethylene wax, 2 parts of maleic anhydride grafted EVA (ethylene vinyl acetate), 1 part of silane coupling agent, 5 parts of needle-shaped wollastonite, 10 parts of basalt fiber, 5 parts of microencapsulated ammonium polyphosphate, 1 part of rosin pentaerythritol ester, 0.5 part of antimony tri (stearate) heat stabilizer and 0.1 part of AMB impact modifier.
The preparation method of the starch-coated calcium carbonate comprises the following steps:
preparing starch into suspension with a certain concentration, heating to 95 ℃ for gelatinization for 80min, adjusting the pH of the solution to 10-11 by using NaOH solution, adding a certain amount of palmitic acid, wherein the mass of the added palmitic acid is 12% of the mass of the starch, keeping the temperature for reaction for 35min, adding calcium carbonate powder, stirring and mixing uniformly, adjusting the rotating speed to 500r/min, pouring the reaction solution into ammonium sulfate solution under mechanical stirring, adjusting the rotating speed to 40r/min after pouring, stirring for 10h, filtering, washing with water, and drying.
The preparation method comprises the following steps:
crushing corn straws, pretreating the crushed corn straws with 0.5 percent NaOH solution for 20 hours, washing the corn straws, drying the corn straws, putting the corn straws, polyethylene glycol terephthalate, polyolefin plastic powder, waste tire rubber powder, gutta percha, starch-coated calcium carbonate, polyethylene wax, maleic anhydride grafted EVA (ethylene-vinyl acetate), a silane coupling agent, needle-shaped wollastonite and basalt fiber into a stirrer to be decompressed and exploded within 0.00875s, stirring the mixture at 800r/min and 80 ℃ for 10min to obtain a mixture, adding the mixture, microencapsulated ammonium polyphosphate, rosin pentaerythritol ester, antimony tri (stearate) heat stabilizer and AMB impact modifier into a mixing roll, mixing the mixture at 170 ℃ for 10min, discharging the mixture, putting the mixture into a flat vulcanizing machine to be subjected to compression molding, wherein the compression molding temperature is 170 ℃, the pressure is 12MPa and the time is 15 min.
Example 8:
a waste tire rubber powder and agricultural straw filled plastic-wood composite section comprises the following components in parts by weight:
80 parts of wheat straw, 20 parts of polyethylene terephthalate, 30 parts of polyolefin plastic powder, 20 parts of waste tire rubber powder, 10 parts of gutta-percha, 15 parts of starch-coated calcium carbonate, 10 parts of polyethylene wax, 1 part of maleic anhydride grafted PE, 1 part of silane coupling agent, 2 parts of needle-shaped wollastonite, 10 parts of tetrapod-shaped zinc oxide whisker, 5 parts of microencapsulated ammonium polyphosphate, 1 part of rosin pentaerythritol ester, 0.1 part of antimony tri (stearate) heat stabilizer and 1 part of AMB impact modifier.
The preparation method of the starch-coated calcium carbonate comprises the following steps:
preparing starch into suspension with a certain concentration, heating to 90 ℃ for gelatinization for 80min, adjusting the pH of the solution to 10-11 by using NaOH solution, adding a certain amount of palmitic acid, wherein the mass of the added palmitic acid is 12% of the mass of the starch, keeping the temperature for reaction for 50min, adding calcium carbonate powder, stirring and mixing uniformly, adjusting the rotating speed to 400r/min, pouring the reaction solution into ammonium sulfate solution under mechanical stirring, adjusting the rotating speed to 40r/min after pouring, stirring for 10h, filtering, washing with water, and drying.
The preparation method comprises the following steps:
crushing wheat straws, pretreating the crushed wheat straws with a NaOH solution with the mass concentration of 1% for 20 hours, washing the crushed wheat straws with water, drying the crushed wheat straws, putting the crushed wheat straws in a straw blasting machine, keeping the pressure for 50 seconds under the pressure of 2MPa, and releasing the pressure for blasting within 0.00875 seconds, wherein the wheat straws, the polyethylene glycol terephthalate, the polyolefin plastic powder, the waste tire rubber powder, the gutta percha, the starch-coated calcium carbonate, the polyethylene wax, the maleic anhydride grafted PE, the silane coupling agent, the needle-shaped wollastonite and the tetrapod-shaped zinc oxide whisker are added into a stirrer, the mixture is stirred at the temperature of 800r/min and 80 ℃ for 10 minutes to obtain a mixture, the microencapsulated ammonium polyphosphate, the rosin pentaerythritol ester, the antimony tristearate and the AMB impact modifier are added into a mixing roll, mixed for 5 minutes at the temperature of 175 ℃, then the mixture is discharged, the material is put into a flat vulcanizing machine for, the pressure is 12MPa and the time is 10 min.
Comparative example 1:
substantially the same as in example 1 except that the used tire rubber powder was not contained.
Comparative example 2:
the procedure was as in example 1 except that no gutta-percha was contained.
And (3) performance testing:
the following table 1 shows the performance test results of the plastic-wood composite profiles prepared in example 1 and comparative examples 1-2.
Table 1:
as can be seen from table 1 above, the plastic-wood composite profile prepared by the method has excellent mechanical properties, is flame-retardant and moisture-proof, and the addition of the waste tire rubber powder and the gutta percha is proved to be of great benefit for improving the mechanical properties of the plastic-wood composite profile.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. The waste tire rubber powder and agricultural straw filled plastic-wood composite section is characterized by comprising the following components in parts by weight:
60-80 parts of agricultural straw, 20-40 parts of polyethylene glycol terephthalate, 20-40 parts of polyolefin plastic powder, 20-40 parts of waste tire rubber powder, 10-20 parts of gutta-percha, 10-30 parts of starch-coated calcium carbonate, 5-10 parts of polyethylene wax, 1-5 parts of maleic anhydride graft polymer, 0.1-2 parts of silane coupling agent, 1-10 parts of needle-shaped wollastonite, 10-20 parts of reinforcing fiber, 1-5 parts of microencapsulated ammonium polyphosphate, 1-2 parts of rosin pentaerythritol ester, 0.1-1 part of antimony tri (stearate) heat stabilizer and 0.1-1 part of AMB impact modifier.
2. The waste tire rubber powder and agricultural straw filled type plastic-wood composite profile as claimed in claim 1, which comprises the following components in parts by weight:
70 parts of agricultural straw, 20 parts of polyethylene terephthalate, 40 parts of polyolefin plastic powder, 25 parts of waste tire rubber powder, 20 parts of eucommia ulmoides gum, 20 parts of starch-coated calcium carbonate, 5 parts of polyethylene wax, 2 parts of maleic anhydride grafted polymer, 1 part of silane coupling agent, 5 parts of needle-shaped wollastonite, 10 parts of reinforcing fiber, 2 parts of microencapsulated ammonium polyphosphate, 1 part of rosin pentaerythritol ester, 0.5 part of antimony tri (stearate) heat stabilizer and 1 part of AMB impact modifier.
3. The waste tire rubber powder and agricultural straw filled type plastic-wood composite profile as claimed in claim 1, which comprises the following components in parts by weight:
80 parts of agricultural straw, 40 parts of polyethylene terephthalate, 30 parts of polyolefin plastic powder, 20 parts of waste tire rubber powder, 15 parts of eucommia ulmoides gum, 20 parts of starch-coated calcium carbonate, 10 parts of polyethylene wax, 2 parts of maleic anhydride grafted polymer, 2 parts of silane coupling agent, 1 part of needle-shaped wollastonite, 12 parts of reinforcing fiber, 5 parts of microencapsulated ammonium polyphosphate, 1 part of rosin pentaerythritol ester, 1 part of antimony tri (stearate) heat stabilizer and 0.2 part of AMB impact modifier.
4. The waste tire rubber powder and agricultural straw filled plastic-wood composite profile as claimed in claim 1, wherein the agricultural straw is any one of wheat straw, rice straw, corn straw, rape straw, cotton straw and sugarcane straw.
5. The waste tire rubber powder and agricultural straw filled type plastic-wood composite profile as claimed in claim 1, wherein the preparation method of the starch coated type calcium carbonate comprises the following steps:
preparing starch into suspension with a certain concentration, heating to 90-95 ℃ for gelatinization for 60-80min, adjusting the pH of the solution to 10-11 by using NaOH solution, adding a certain amount of palmitic acid, carrying out heat preservation reaction for 30-50min, adding calcium carbonate powder, stirring and mixing uniformly, adjusting the rotating speed to 400-600r/min, pouring the reaction solution into ammonium sulfate solution under mechanical stirring, adjusting the rotating speed to 40-60r/min after pouring, stirring for 10-15h, filtering, washing with water and drying.
6. The waste tire rubber powder and agricultural straw filled type plastic-wood composite profile as claimed in claim 5, wherein the mass of the added palmitic acid is 10-15% of the mass of starch.
7. The waste tire rubber powder and agricultural straw filled type plastic-wood composite profile as claimed in claim 1, wherein the maleic anhydride grafted polymer is any one of maleic anhydride grafted ABS, maleic anhydride grafted PP, maleic anhydride grafted SBS, maleic anhydride grafted SEBS, maleic anhydride grafted EVA, maleic anhydride grafted PE and maleic anhydride grafted POE.
8. The waste tire rubber powder and agricultural straw filled type plastic-wood composite profile as claimed in claim 1, wherein the reinforcing fiber is any one of basalt fiber, glass fiber, carbon fiber, boron fiber and tetrapod-like zinc oxide whisker.
9. The waste tire rubber powder and agricultural straw filled type plastic-wood composite profile as claimed in any one of claims 1 to 8, which is prepared by the following steps:
(1) crushing agricultural straws, pretreating the crushed agricultural straws with NaOH solution, washing the crushed agricultural straws with water, drying the crushed agricultural straws, and blasting the crushed agricultural straws with a straw blasting machine;
(2) adding the agricultural straw, polyethylene glycol terephthalate, polyolefin plastic powder, waste tire rubber powder, gutta percha, starch-coated calcium carbonate, polyethylene wax, maleic anhydride grafted polymer, silane coupling agent, needle-shaped wollastonite and reinforcing fiber into a stirrer, and uniformly mixing to obtain a mixture;
(3) and adding the mixture, microencapsulated ammonium polyphosphate, rosin pentaerythritol ester, antimony tri (stearate) heat stabilizer and AMB impact modifier into a mixing roll for mixing, and performing compression molding treatment on the mixed material.
10. The waste tire rubber powder and agricultural straw filled type plastic-wood composite profile as claimed in claim 9, wherein the preparation method comprises the following steps:
(1) crushing agricultural straws, pretreating the crushed agricultural straws for 20 to 25 hours by using a NaOH solution with the mass concentration of 0.5 to 2 percent, drying the crushed agricultural straws after washing, putting the crushed agricultural straws into a straw blasting machine for 50 to 100 seconds under the pressure of 2 to 5MPa, and performing blasting by releasing pressure within 0.00875 s;
(2) adding the agricultural straw, polyethylene glycol terephthalate, polyolefin plastic powder, waste tire rubber powder, gutta-percha, starch-coated calcium carbonate, polyethylene wax, maleic anhydride grafted polymer, silane coupling agent, needle-shaped wollastonite and reinforcing fiber into a stirrer, and stirring at 600-800r/min and 80-90 ℃ for 10-30min to obtain a mixture;
(3) and adding the mixture, the microencapsulated ammonium polyphosphate, the rosin pentaerythritol ester, the antimony tri (stearate) heat stabilizer and the AMB impact modifier into a mixing roll, mixing for 5-10min at the temperature of 165-175 ℃, discharging, and placing the material into a flat vulcanizing machine for compression molding treatment, wherein the compression molding treatment temperature is 170-180 ℃, the pressure is 10-15MPa, and the time is 10-15 min.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112963799A (en) * | 2021-03-15 | 2021-06-15 | 宁波雅佳达车业有限公司 | Headlight and have electric motor car of this headlight |
| CN118546505A (en) * | 2024-07-24 | 2024-08-27 | 苏州博大永旺新材股份有限公司 | Synthesis method of biodegradable modified PET copolyester material |
-
2019
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112963799A (en) * | 2021-03-15 | 2021-06-15 | 宁波雅佳达车业有限公司 | Headlight and have electric motor car of this headlight |
| CN118546505A (en) * | 2024-07-24 | 2024-08-27 | 苏州博大永旺新材股份有限公司 | Synthesis method of biodegradable modified PET copolyester material |
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