CN109354802A - A kind of preparation method of energy-saving environmental-protection board material - Google Patents

A kind of preparation method of energy-saving environmental-protection board material Download PDF

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CN109354802A
CN109354802A CN201811209869.1A CN201811209869A CN109354802A CN 109354802 A CN109354802 A CN 109354802A CN 201811209869 A CN201811209869 A CN 201811209869A CN 109354802 A CN109354802 A CN 109354802A
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parts
energy
preparation
protection board
board material
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刘东升
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Hefei Moon New Decorative Material Co Ltd
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Hefei Moon New Decorative Material Co Ltd
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    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
    • C08J9/10—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
    • C08J9/102—Azo-compounds
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    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0095—Mixtures of at least two compounding ingredients belonging to different one-dot groups
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    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
    • C08J9/08—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing carbon dioxide
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    • C08J2203/00—Foams characterized by the expanding agent
    • C08J2203/02—CO2-releasing, e.g. NaHCO3 and citric acid
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    • C08J2203/04—N2 releasing, ex azodicarbonamide or nitroso compound
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    • C08J2203/18—Binary blends of expanding agents
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    • C08J2327/00—Characterised by the use 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 a halogen; Derivatives of such polymers
    • C08J2327/02—Characterised by the use 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 a halogen; Derivatives of such polymers not modified by chemical after-treatment
    • C08J2327/04—Characterised by the use 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 a halogen; Derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
    • C08J2327/06—Homopolymers or copolymers of vinyl chloride
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    • C08J2497/00—Characterised by the use of lignin-containing materials
    • C08J2497/02—Lignocellulosic material, e.g. wood, straw or bagasse
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Abstract

The invention discloses a kind of preparation methods of energy-saving environmental-protection board material, are related to plate field, comprising the following steps: (1) cleaning of waste PVC buckle；(2) crushing of waste PVC buckle；(4) modification of PVC is discarded；(5) preparation of PVC powder is regenerated；(5) preparation of modified conch meal；(6) material mixes；(7) preparation of energy-saving environmental-protection board material；The method of the present invention is using discarded PVC buckle as raw material, it is acted on using coordinateds such as maleic anhydride grafting, isocyanates, after the comprehensive mechanical property for improving discarded PVC, the sheet material prepared with raw materials associateds such as modified conch meals, with good mechanical property, at the same it is original from a wealth of sources, and production cost is low, solve the problems, such as the regeneration of discarded PVC buckle, energy conservation and environmental protection.

Description

A kind of preparation method of energy-saving environmental-protection board material
Technical field
The present invention relates to plate fields, and in particular to a kind of preparation method of energy-saving environmental-protection board material.
Background technique
Due to the mass production of plastics, the plastic refuse that consume is with shorter service life is sharply increased.Plastics A large amount of discarded huge wastes for not only causing resource, also bring high risks, contaminated soil and ocean to environment, and burning disposal produces Raw a large amount of harmful substance, endangers environment, and plastics recycling is added and causes global great attention.
Chinese patent CN102911462B discloses a kind of waste PVC and fly ash composite material and preparation method thereof, should Composite material includes the raw material of following parts by weight: 80-120 parts of waste PVC, 35-55 parts of flyash, 3-10 parts of plasticizer, fire-retardant 1-2 parts of agent, 0.5-2 parts of stabilizer, 0.5-2 parts of impact modifier, 0.3-1 parts of lubricant and 0.1-0.5 parts of antioxidant；By weight Part weighs the mixing of each raw material, and by double screw extruder extruding pelletization after stirring, through blank, air-cooled, the composite material is made.This Invent composite material fine heat-resisting performance obtained, excellent combination property；The additive amount of renewable resource reaches in the composite material To 90%-95%, production cost is reduced, reduces environmental pollution.
Chinese patent CN105330923A discloses the rubber floor covering and its system that a kind of waste-tyre rubber-powder is raw material preparation Preparation Method passes through waste-tyre rubber-powder, PVC powder, croci, potassium bearing rock powder, polypropylene powder, urethane cures The selection of agent and raw material proportioning are designed, and are acted on by the sylvite in potassium rock with waste-tyre rubber-powder, Jin Erda To the purpose of activated waste tire glue powder, in conjunction with the addition of croci, so that crumb rubber activation degree enhances；In conjunction with The addition of PVC powder, polypropylene powder, polyurethane curing agent, so that intensity of rubber powder during curing molding is protected, Improve the performance of rubber floor covering, while regeneration waste tire.
PVC buckle is a kind of ceiling material, is using Corvic as base-material, light weight facilitates installation, uses degree Extensively, a large amount of PVC buckle waste and leftover pieces generate every year accordingly, but the regeneration to PVC buckle in the prior art The technical solution utilized is seldom.
Summary of the invention
Aiming at the problems existing in the prior art, the present invention provides a kind of preparation method of energy-saving environmental-protection board material, The method of the present invention is acted on using discarded PVC buckle as raw material using coordinateds such as maleic anhydride grafting, isocyanates, is improved useless After abandoning the comprehensive mechanical property of PVC, the sheet material prepared with raw materials associateds such as modified conch meals has good mechanical property Can, while it is original from a wealth of sources, production cost is low, solves the problems, such as the regeneration of discarded PVC buckle, energy conservation and environmental protection.
In order to achieve the above object, the present invention is achieved through the following technical solutions:
A kind of preparation method of energy-saving environmental-protection board material, comprising the following steps:
(1) the PVC buckle waste material generated in waste and old PVC buckle material or fitment process is cleaned by ultrasonic, is removed After surface smut, natural air drying；
(2) it will be crushed in step (1) treated PVC buckle dead meal merging pulverizer, cross 150-300 mesh, merging It is 3 hours dry in vacuum drying oven under 60-70 degrees Celsius, obtain discarded PVC powder；
(3) vinyl oxethyl by discarded PVC powder and quite with the maleic anhydride of its weight 4-6%, 0.8-1.5% The antioxidant mixing of silane, 2-3% isocyanates and 1-2% is added high-speed mixer mixing 5-10 minutes, after mixing, adds Enter extruding pelletization in double screw extruder, after pellet is cleaned up with deionized water, is placed in baking oven and dries；
(4) pellet made from step (3) is placed in pulverizer and is crushed, crossed 100-200 mesh, obtain regeneration PVC powder；
(5) shell is cleaned and is impregnated 30-40 minutes in the hydrochloric acid solution that mass concentration is 1-3%, it is repeatedly clear with clear water After washing, high-temperature calcination 2-3 hours, it is placed in low-temperature plasma generator after interior progress plasma radiation processing, ground 150-300 mesh obtains modified conch meal；
(6) PVC powder 60-70 parts, 8-15 parts of repefral, modified conch meal 16-22 parts, wood powder will be regenerated 22-30 parts, 6-12 parts of calcium carbonate, 2-4 parts of stearic acid, 5-12 parts of nano silica, 1-3 parts of silane coupling agent, fire retardant 3-5 After being mixed 10-15 minutes in part and light stabilizer 1.5-2.8 parts of addition high-speed mixer, still aging 10 hours, it is added compound It 2-5 parts of foaming agent, is stirred 20-25 minutes, obtains mixed material；
(7) mixed material in step (6) is added in two-roll mill, under 158-165 degrees Celsius, mill 12-20 After minute, it is placed in moulded from foam molding in vulcanizing press, cooling, excision forming is to get the energy-saving environmental-protection board material.
Preferably, the ultrasonic cleaning condition in the step (1) are as follows: ultrasonic power 1.5-2KW, frequency 35-50KHz, clearly Wash time 20-30 minute.
Preferably, the antioxidant in the step (3) is β-((3,5- di-tert-butyl-hydroxy phenyl) propionic acid) Ji Wusi Alcohol ester, three (2,4- dibutyl phenyl ester) phosphites, triphenyl phosphite and pentaerythritol bis-phosphite two (octadecyl alcolol) ester One or more of combine.
Preferably, the running parameter setting of the double screw extruder in the step (3) are as follows: engine speed 140- 180 revs/min, pressure 10-15MPa, one area of temperature to 5th area of extruder are successively set as 140-150 degrees Celsius, 150- 160 degrees Celsius, 160-170 degrees Celsius, 170-175 degrees Celsius, 160-170 degrees Celsius.
Preferably, the plasma radiation processing step in the step (5) are as follows: low-temperature plasma generator is vacuumized, After stable gas pressure, microwave discharge is carried out, is 50-80KW in radiant power, radiated time is 80-100 minutes, stops electric discharge, closes Power supply is closed, is passed through air to normal pressure.
Preferably, the light stabilizer in the step (6) is the positive hexadecyl ester of 3,5- di-tert-butyl-4-hydroxybenzoic acid, 2- Cyano -3,3- diphenyl-ethyl acrylate, -4 methoxyl group ketone of 2- hydroxyl, in 2- (2- hydroxy-5-methyl base phenyl) benzotriazole One or more of combine.
Preferably, the composite foamable agent in the step (6) is AC foaming agent, nano zine oxide and sodium bicarbonate according to matter Amount is mixed than 4:2:3 and is formed.
Preferably, the fire retardant in the step (6) is phosphorus flame retardant, in nitrogenated flame retardant, phosphorus-nitrogenated flame retardant One or more mixing composition.
Preferably, the silane coupling agent in the step (6) be γ-methacryloxypropyl trimethoxy silane, Gamma-aminopropyl-triethoxy-silane, γ-glycidyl ether oxygen propyl trimethoxy silicane, (the 'beta '-methoxy ethoxy of vinyl three Base) one or more of silane, vinyltriethoxysilane and γ-divinyl triammonium base propyl-triethoxysilicane knot It closes.
Preferably, the molding condition of moulded from foam in the step (7) are as follows: 175-180 degrees Celsius of molding temperature, molding pressure Power 11-13MPa, clamp time 8-12 minutes.
The present invention have it is following the utility model has the advantages that
(1) the method for the present invention utilizes the coordinateds such as maleic anhydride grafting, isocyanates using discarded PVC buckle as raw material Effect improves after discarding the comprehensive mechanical property of PVC, and the sheet material prepared with raw materials associateds such as modified conch meals has good Good mechanical property, at the same it is original from a wealth of sources, and production cost is low, solves the problems, such as the regeneration of discarded PVC buckle, energy conservation Environmental protection.
(2) in the method for the present invention by by discarded PVC powder and maleic anhydride, vinylethoxysilane, isocyanates and Antioxidant mixing extruding pelletization improves the defect that discarded PVC powder is reduced by aging easy fracture, cracking and mechanical property, enhancing The comprehensive mechanical property of discarded PVC powder, to improve the mechanical property of sheet material.
(3) the active of conch meal is enhanced by high-temperature calcination and plasma radiation in the method for the present invention, and improves shellfish The aperture rate of shell powder improves conch meal and regenerates the binding force of PVC powder, while the adsorptivity of sheet material can be enhanced.
(4) it is foamed using composite foamable agent to raw material in the method for the present invention, composite foamable agent is AC foaming agent, nanometer Zinc oxide and sodium bicarbonate mixing composition, nano zine oxide, which is added, can be effectively reduced the decomposition temperature of AC foaming agent, improve AC The foaming effect of foaming agent, sodium bicarbonate, which is added, can alleviate the heat release of AC foaming agent, carry out reacting balance.
Specific embodiment
Below with reference to embodiment, further description of the specific embodiments of the present invention, and following embodiment is only used for more Technical solution of the present invention is clearly demonstrated, and not intended to limit the protection scope of the present invention.
Embodiment 1
A kind of preparation method of energy-saving environmental-protection board material, comprising the following steps:
(1) the PVC buckle waste material generated in waste and old PVC buckle material or fitment process is cleaned by ultrasonic, is removed After surface smut, natural air drying；
(2) it will be crushed in step (1) treated PVC buckle dead meal merging pulverizer, cross 150-300 mesh, merging In vacuum drying oven at 60 c, 3 hours dry, obtain discarded PVC powder；
(3) by discarded PVC powder and quite with the maleic anhydride of its weight 4%, 0.8% vinylethoxysilane, 2-3% isocyanates and 1% antioxidant mixing be added high-speed mixer mix 5 minutes, after mixing, be added twin-screw squeeze Extruding pelletization in machine out after pellet is cleaned up with deionized water, is placed in baking oven and dries；
(4) pellet made from step (3) is placed in pulverizer and is crushed, sieved with 100 mesh sieve, obtain regeneration PVC powder；
(5) shell is cleaned and is impregnated 30 minutes in the hydrochloric acid solution that mass concentration is 1%, after being cleaned repeatedly with clear water, It high-temperature calcination 2 hours, is placed in low-temperature plasma generator after interior progress plasma radiation processing, ground 150 meshes, Conch meal must be modified；
It (6) will 60 parts of PVC powder of regeneration, 8 parts of repefral, modified 16 parts of conch meal, 22 parts of wood powder, calcium carbonate 6 parts, 2 parts of stearic acid, 5 parts of nano silica, 1.5 parts of 1 part of silane coupling agent, 3 parts of fire retardant and light stabilizer addition high speeds It is mixed in mixing machine after ten minutes, still aging 10 hours, is added 2 parts of composite foamable agent, is stirred 20 minutes, obtains mixture Material；
(7) mixed material in step (6) is added in two-roll mill, under 158 degrees Celsius, after mill 12 minutes, It is placed in moulded from foam molding in vulcanizing press, cooling, excision forming is to get the energy-saving environmental-protection board material.
Ultrasonic cleaning condition in step (1) are as follows: ultrasonic power 1.5KW, frequency 35KHz, scavenging period 20 minutes.
Antioxidant in step (3) is β-((3,5- di-tert-butyl-hydroxy phenyl) propionic acid) pentaerythritol ester.
The running parameter of double screw extruder in step (3) is set are as follows: engine speed is 140 revs/min, and pressure is 10MPa, one area of temperature to 5th area of extruder are successively set as 140 degrees Celsius, and 150 degrees Celsius, 160 degrees Celsius, 170 is Celsius Degree, 160 degrees Celsius.
Plasma radiation processing step in step (5) are as follows: low-temperature plasma generator is vacuumized, after stable gas pressure, Microwave discharge is carried out, is 50KW in radiant power, radiated time is 80 minutes, stops electric discharge, closes power supply, is passed through air to normal Pressure.
Light stabilizer in step (6) is the positive hexadecyl ester of 3,5- di-tert-butyl-4-hydroxybenzoic acid.
Composite foamable agent in step (6) is that AC foaming agent, nano zine oxide and sodium bicarbonate are mixed according to mass ratio 4:2:3 It is combined into.
Fire retardant in step (6) is phosphorus flame retardant.
Silane coupling agent in step (6) is γ-methacryloxypropyl trimethoxy silane.
The molding condition of moulded from foam in step (7) are as follows: 175 degrees Celsius of molding temperature, molding pressure 11MPa, when molding Between 8 minutes.
Embodiment 2
A kind of preparation method of energy-saving environmental-protection board material, comprising the following steps:
(1) the PVC buckle waste material generated in waste and old PVC buckle material or fitment process is cleaned by ultrasonic, is removed After surface smut, natural air drying；
(2) it will be crushed in step (1) treated PVC buckle dead meal merging pulverizer, cross 300 meshes, be placed in vacuum It is 3 hours dry in baking oven under 70 degrees Celsius, obtain discarded PVC powder；
(3) by discarded PVC powder and quite with the maleic anhydride of its weight 6%, 1.5% vinylethoxysilane, 3% isocyanates and 2% antioxidant mixing be added high-speed mixer mix 10 minutes, after mixing, be added twin-screw squeeze Extruding pelletization in machine out after pellet is cleaned up with deionized water, is placed in baking oven and dries；
(4) pellet made from step (3) is placed in pulverizer and is crushed, crossed 200 meshes, obtain regeneration PVC powder；
(5) shell is cleaned and is impregnated 40 minutes in the hydrochloric acid solution that mass concentration is 3%, after being cleaned repeatedly with clear water, It high-temperature calcination 3 hours, is placed in low-temperature plasma generator after interior progress plasma radiation processing, ground 300 meshes, Conch meal must be modified；
It (6) will 70 parts of PVC powder of regeneration, 15 parts of repefral, modified 22 parts of conch meal, 30 parts of wood powder, carbonic acid 12 parts of calcium, 4 parts of stearic acid, 12 parts of nano silica, 3 parts of silane coupling agent, 5 parts of fire retardant and 2.8 parts of light stabilizer additions After being mixed 15 minutes in high-speed mixer, still aging 10 hours, 5 parts of composite foamable agent is added, is stirred 25 minutes, obtains mixed Close material；
(7) by step (6) mixed material be added two-roll mill in, under 165 degrees Celsius, mill after twenty minutes, It is placed in moulded from foam molding in vulcanizing press, cooling, excision forming is to get the energy-saving environmental-protection board material.
Ultrasonic cleaning condition in step (1) are as follows: ultrasonic power 2KW, frequency 50KHz, scavenging period 30 minutes.
Antioxidant in step (3) is three (2,4- dibutyl phenyl ester) phosphites.
The running parameter of double screw extruder in step (3) is set are as follows: engine speed is 180 revs/min, and pressure is 15MPa, one area of temperature to 5th area of extruder are successively set as 150 degrees Celsius, and 160 degrees Celsius, 170 degrees Celsius, 175 is Celsius Degree, 170 degrees Celsius.
Plasma radiation processing step in step (5) are as follows: low-temperature plasma generator is vacuumized, after stable gas pressure, Microwave discharge is carried out, is 80KW in radiant power, radiated time is 100 minutes, stops electric discharge, closes power supply, be passed through air extremely Normal pressure.
Light stabilizer in step (6) is 2-cyano -3,3-diphenyl ethyl acrylate.
Composite foamable agent in step (6) is that AC foaming agent, nano zine oxide and sodium bicarbonate are mixed according to mass ratio 4:2:3 It is combined into.
Fire retardant in step (6) is nitrogenated flame retardant.
Gamma-aminopropyl-triethoxy-silane in step (6).
The molding condition of moulded from foam in step (7) are as follows: 180 degrees Celsius of molding temperature, molding pressure 13MPa, when molding Between 12 minutes.
Embodiment 3
A kind of preparation method of energy-saving environmental-protection board material, comprising the following steps:
(1) the PVC buckle waste material generated in waste and old PVC buckle material or fitment process is cleaned by ultrasonic, is removed After surface smut, natural air drying；
(2) it will be crushed in step (1) treated PVC buckle dead meal merging pulverizer, cross 200 meshes, be placed in vacuum It is 3 hours dry in baking oven under 68 degrees Celsius, obtain discarded PVC powder；
(3) by discarded PVC powder and quite with the maleic anhydride of its weight 5%, 1.2% vinylethoxysilane, 2.2% isocyanates and 1.5% antioxidant mixing be added high-speed mixer mix 8 minutes, after mixing, be added twin-screw Extruding pelletization in extruder after pellet is cleaned up with deionized water, is placed in baking oven and dries；
(4) pellet made from step (3) is placed in pulverizer and is crushed, crossed 160 meshes, obtain regeneration PVC powder；
(5) shell is cleaned and is impregnated 36 minutes in the hydrochloric acid solution that mass concentration is 2%, after being cleaned repeatedly with clear water, It high-temperature calcination 2.5 hours, is placed in low-temperature plasma generator after interior progress plasma radiation processing, ground 220 mesh Sieve, obtains modified conch meal；
It (6) will 68 parts of PVC powder of regeneration, 12 parts of repefral, modified 20 parts of conch meal, 28 parts of wood powder, carbonic acid 2.2 parts of 10 parts of calcium, 3 parts of stearic acid, 9 parts of nano silica, 2 parts of silane coupling agent, 4 parts of fire retardant and light stabilizer additions are high After being mixed 13 minutes in fast mixing machine, still aging 10 hours, 3.5 parts of composite foamable agent is added, is stirred 23 minutes, obtains mixed Close material；
(7) mixed material in step (6) is added in two-roll mill, under 162 degrees Celsius, after mill 18 minutes, It is placed in moulded from foam molding in vulcanizing press, cooling, excision forming is to get the energy-saving environmental-protection board material.
Ultrasonic cleaning condition in step (1) are as follows: ultrasonic power 1.8KW, frequency 42KHz, scavenging period 28 minutes.
Antioxidant in step (3) is triphenyl phosphite.
The running parameter of double screw extruder in step (3) is set are as follows: engine speed is 175 revs/min, and pressure is 13MPa, one area of temperature to 5th area of extruder are successively set as 145 degrees Celsius, and 152 degrees Celsius, 168 degrees Celsius, 173 is Celsius Degree, 165 degrees Celsius.
Plasma radiation processing step in step (5) are as follows: low-temperature plasma generator is vacuumized, after stable gas pressure, Microwave discharge is carried out, is 68KW in radiant power, radiated time is 90 minutes, stops electric discharge, closes power supply, is passed through air to normal Pressure.
Light stabilizer in step (6) is -4 methoxyl group ketone of 2- hydroxyl.
Composite foamable agent in step (6) is that AC foaming agent, nano zine oxide and sodium bicarbonate are mixed according to mass ratio 4:2:3 It is combined into.
Fire retardant in step (6) is phosphorus-nitrogenated flame retardant.
Silane coupling agent in step (6) be γ-glycidyl ether oxygen propyl trimethoxy silicane,.
The molding condition of moulded from foam in step (7) are as follows: 178 degrees Celsius of molding temperature, molding pressure 11.5MPa, molding Time 10 minutes.
Embodiment 4
A kind of preparation method of energy-saving environmental-protection board material, comprising the following steps:
(1) the PVC buckle waste material generated in waste and old PVC buckle material or fitment process is cleaned by ultrasonic, is removed After surface smut, natural air drying；
(2) it will be crushed in step (1) treated PVC buckle dead meal merging pulverizer, cross 250 meshes, be placed in vacuum It is 3 hours dry in baking oven under 65 degrees Celsius, obtain discarded PVC powder；
(3) by discarded PVC powder and quite with the maleic anhydride of its weight 4.6%, 1.2% vinyl oxethyl silicon Alkane, 2.8% isocyanates and 1.6% antioxidant mixing are added high-speed mixer and mix 8 minutes, after mixing, are added double Extruding pelletization in screw extruder after pellet is cleaned up with deionized water, is placed in baking oven and dries；
(4) pellet made from step (3) is placed in pulverizer and is crushed, crossed 160 meshes, obtain regeneration PVC powder；
(5) shell is cleaned and is impregnated 35 minutes in the hydrochloric acid solution that mass concentration is 2.5%, cleaned repeatedly with clear water Afterwards, high-temperature calcination 2.8 hours are placed in low-temperature plasma generator after interior progress plasma radiation processing, ground 250 Mesh obtains modified conch meal；
It (6) will 68 parts of PVC powder of regeneration, 12 parts of repefral, modified 20 parts of conch meal, 28 parts of wood powder, carbonic acid 10 parts of calcium, 2.8 parts of stearic acid, 10 parts of nano silica, 2.6 parts of silane coupling agent, 4.2 parts of fire retardant and light stabilizer 2.4 After being mixed 13 minutes in part addition high-speed mixer, still aging 10 hours, 4.5 parts of composite foamable agent is added, is stirred 23 Minute, obtain mixed material；
(7) mixed material in step (6) is added in two-roll mill, under 162 degrees Celsius, after mill 18 minutes, It is placed in moulded from foam molding in vulcanizing press, cooling, excision forming is to get the energy-saving environmental-protection board material.
Ultrasonic cleaning condition in step (1) are as follows: ultrasonic power 1.6KW, frequency 46KHz, scavenging period 28 minutes.
Antioxidant in step (3) is pentaerythritol bis-phosphite two (octadecyl alcolol) ester.
The running parameter of double screw extruder in step (3) is set are as follows: engine speed is 170 revs/min, and pressure is 13MPa, one area of temperature to 5th area of extruder are successively set as 148 degrees Celsius, and 156 degrees Celsius, 164 degrees Celsius, 172 is Celsius Degree, 168 degrees Celsius.
Plasma radiation processing step in step (5) are as follows: low-temperature plasma generator is vacuumized, after stable gas pressure, Microwave discharge is carried out, is 68KW in radiant power, radiated time is 90 minutes, stops electric discharge, closes power supply, is passed through air to normal Pressure.
Light stabilizer in step (6) is 2- (2- hydroxy-5-methyl base phenyl) benzotriazole.
Composite foamable agent in step (6) is that AC foaming agent, nano zine oxide and sodium bicarbonate are mixed according to mass ratio 4:2:3 It is combined into.
Fire retardant in step (6) is phosphorus flame retardant.
Silane coupling agent in step (6) is vinyl three ('beta '-methoxy ethyoxyl) silane.
The molding condition of moulded from foam in step (7) are as follows: 178 degrees Celsius of molding temperature, molding pressure 12MPa, when molding Between 10 minutes.
Comparative example 1: discarded PVC powder is not made any modification and is directly used, while remaining preparation method and raw material are equal It is same as Example 1；
Embodiment 2；In addition to being not added with any foaming agent, remaining raw material and preparation method are same as Example 1；
Sheet material is made in energy-saving environmental-protection board material made from embodiment 1-4 and comparative example 1-2 to be tested for the property, As a result such as the following table 1；
Table 1:
Test group Density (gram/cm) Bending strength (MPa) Impact strength (MPa)
Embodiment 1 1.46 53 74
Embodiment 2 1.44 56 77
Embodiment 3 1.47 56 79
Embodiment 4 1.43 58 82
Comparative example 1 1.64 28 45
Comparative example 2 2.09 34 47
As it can be seen from table 1 comparative example 1 and the data of embodiment 1 are compared, the plate of embodiment 1 is relative to right For 1 plate of ratio, density reduces 10.98%, and bending strength improves 89.28%, and impact strength improves 64.44%, Therefore discarded PVC is after organics modifications, then is utilized, hence it is evident that improves the comprehensive mechanical property of material.
Comparative example 2 and the data of embodiment 1 are compared, the plate of embodiment 1 is for comparative example 2, density 30.14% is reduced, bending strength improves 55.88%, and impact strength improves 57.45%, can be seen that from data, and addition is multiple The plate that foaming agent is prepared is closed, the density of plate is not only effectively reduced, the plate produced is light, and it is easy to use, simultaneously The plate mechanical mechanics property produced is remarkably reinforced, and improves the durability of plate.
In conclusion the invention has the following advantages that
(1) the method for the present invention utilizes the coordinateds such as maleic anhydride grafting, isocyanates using discarded PVC buckle as raw material Effect improves after discarding the comprehensive mechanical property of PVC, and the sheet material prepared with raw materials associateds such as modified conch meals has good Good mechanical property, at the same it is original from a wealth of sources, and production cost is low, solves the problems, such as the regeneration of discarded PVC buckle, energy conservation Environmental protection.
(2) in the method for the present invention by by discarded PVC powder and maleic anhydride, vinylethoxysilane, isocyanates and Antioxidant mixing extruding pelletization improves the defect that discarded PVC powder is reduced by aging easy fracture, cracking and mechanical property, enhancing The comprehensive mechanical property of discarded PVC powder, to improve the mechanical property of sheet material.
(3) the active of conch meal is enhanced by high-temperature calcination and plasma radiation in the method for the present invention, and improves shellfish The aperture rate of shell powder improves conch meal and regenerates the binding force of PVC powder, while the adsorptivity of sheet material can be enhanced.
(4) it is foamed using composite foamable agent to raw material in the method for the present invention, composite foamable agent is AC foaming agent, nanometer Zinc oxide and sodium bicarbonate mixing composition, nano zine oxide, which is added, can be effectively reduced the decomposition temperature of AC foaming agent, improve AC The foaming effect of foaming agent, sodium bicarbonate, which is added, can alleviate the heat release of AC foaming agent, carry out reacting balance.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, although referring to aforementioned reality Applying example, invention is explained in detail, for those skilled in the art, still can be to aforementioned each implementation Technical solution documented by example is modified or equivalent replacement of some of the technical features.It is all in essence of the invention Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.

Claims (10)

1. a kind of preparation method of energy-saving environmental-protection board material, which comprises the following steps:
(1) the PVC buckle waste material generated in waste and old PVC buckle material or fitment process is cleaned by ultrasonic, removes surface After dirt, natural air drying；
(2) it will be crushed in step (1) treated PVC buckle dead meal merging pulverizer, cross 150-300 mesh, be placed in vacuum It is 3 hours dry in baking oven under 60-70 degrees Celsius, obtain discarded PVC powder；
(3) the vinyl oxethyl silicon by discarded PVC powder and quite with the maleic anhydride of its weight 4-6%, 0.8-1.5% The antioxidant mixing of alkane, 2-3% isocyanates and 1-2% is added high-speed mixer mixing 5-10 minutes, after mixing, is added Extruding pelletization in double screw extruder after pellet is cleaned up with deionized water, is placed in baking oven and dries；
(4) pellet made from step (3) is placed in pulverizer and is crushed, crossed 100-200 mesh, obtain regeneration PVC powder；
(5) shell is cleaned and is impregnated 30-40 minutes in the hydrochloric acid solution that mass concentration is 1-3%, after being cleaned repeatedly with clear water, It high-temperature calcination 2-3 hours, is placed in low-temperature plasma generator after interior progress plasma radiation processing, ground 150- 300 meshes obtain modified conch meal；
(6) PVC powder 60-70 parts, 8-15 parts of repefral, modified conch meal 16-22 parts, wood powder 22-30 will be regenerated Part, 6-12 parts of calcium carbonate, 2-4 parts of stearic acid, 5-12 parts of nano silica, 1-3 parts of silane coupling agent, 3-5 parts of fire retardant and After being mixed 10-15 minutes in 1.5-2.8 parts of addition high-speed mixers of light stabilizer, still aging 10 hours, it is added composite foamed It 2-5 parts of agent, is stirred 20-25 minutes, obtains mixed material；
(7) mixed material in step (6) is added in two-roll mill, under 158-165 degrees Celsius, mill 12-20 minutes Afterwards, it is placed in moulded from foam molding in vulcanizing press, cooling, excision forming is to get the energy-saving environmental-protection board material.
2. the preparation method of energy-saving environmental-protection board material according to claim 1, which is characterized in that in the step (1) Ultrasonic cleaning condition are as follows: ultrasonic power 1.5-2KW, frequency 35-50KHz, scavenging period 20-30 minutes.
3. the preparation method of energy-saving environmental-protection board material according to claim 1, which is characterized in that in the step (3) Antioxidant be β-((3,5- di-tert-butyl-hydroxy phenyl) propionic acid) pentaerythritol ester, three (2,4- dibutyl phenyl ester) phosphorous One or more of sour rouge, triphenyl phosphite and pentaerythritol bis-phosphite two (octadecyl alcolol) ester combine.
4. the preparation method of energy-saving environmental-protection board material according to claim 1, which is characterized in that in the step (3) Double screw extruder running parameter setting are as follows: engine speed be 140-180 revs/min, pressure 10-15MPa, squeeze out One area of temperature to 5th area of machine are successively set as 140-150 degrees Celsius, and 150-160 degrees Celsius, 160-170 degrees Celsius, 170-175 Degree Celsius, 160-170 degrees Celsius.
5. the preparation method of energy-saving environmental-protection board material according to claim 1, which is characterized in that in the step (5) Plasma radiation processing step are as follows: low-temperature plasma generator is vacuumized, after stable gas pressure, carry out microwave discharge, in spoke Penetrating power is 50-80KW, and radiated time is 80-100 minutes, stops electric discharge, closes power supply, be passed through air to normal pressure.
6. the preparation method of energy-saving environmental-protection board material according to claim 1, which is characterized in that in the step (6) Light stabilizer be the positive hexadecyl ester of 3,5- di-tert-butyl-4-hydroxybenzoic acid, 2-cyano -3,3-diphenyl ethyl acrylate, 2- One or more of -4 methoxyl group ketone of hydroxyl, 2- (2- hydroxy-5-methyl base phenyl) benzotriazole combine.
7. the preparation method of energy-saving environmental-protection board material according to claim 1, which is characterized in that in the step (6) Composite foamable agent be AC foaming agent, nano zine oxide and sodium bicarbonate according to mass ratio 4:2:3 mix form.
8. the preparation method of energy-saving environmental-protection board material according to claim 1, which is characterized in that in the step (6) Fire retardant be one or more of phosphorus flame retardant, nitrogenated flame retardant, phosphorus-nitrogenated flame retardant mixing composition.
9. the preparation method of energy-saving environmental-protection board material according to claim 1, which is characterized in that in the step (6) Silane coupling agent be γ-methacryloxypropyl trimethoxy silane, gamma-aminopropyl-triethoxy-silane, γ-shrink Glycerol ether oxygen propyl trimethoxy silicane, vinyl three ('beta '-methoxy ethyoxyl) silane, vinyltriethoxysilane and γ- One or more of divinyl triammonium base propyl-triethoxysilicane combines.
10. the preparation method of energy-saving environmental-protection board material according to claim 1, which is characterized in that in the step (7) The molding condition of moulded from foam are as follows: 175-180 degrees Celsius of molding temperature, molding pressure 11-13MPa, clamp time 8-12 minutes.
CN201811209869.1A 2018-10-17 2018-10-17 A kind of preparation method of energy-saving environmental-protection board material Withdrawn CN109354802A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110183796A (en) * 2019-06-28 2019-08-30 蒙城县欣瑞特建材有限公司 A kind of low cost waste recovery PVC wood plastic plate

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CN107216110A (en) * 2017-06-06 2017-09-29 合肥月煌新型装饰材料有限公司 A kind of building and ornament materials and preparation method thereof
CN108485068A (en) * 2018-04-16 2018-09-04 合肥欧克斯新型建材有限公司 It is a kind of to utilize the Wood-plastic material and preparation method thereof for discarding eggshell
CN108641237A (en) * 2018-06-04 2018-10-12 合肥大麦灯箱器材有限公司 A kind of advertising PVC board composite material and preparation method

Patent Citations (3)

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Publication number Priority date Publication date Assignee Title
CN107216110A (en) * 2017-06-06 2017-09-29 合肥月煌新型装饰材料有限公司 A kind of building and ornament materials and preparation method thereof
CN108485068A (en) * 2018-04-16 2018-09-04 合肥欧克斯新型建材有限公司 It is a kind of to utilize the Wood-plastic material and preparation method thereof for discarding eggshell
CN108641237A (en) * 2018-06-04 2018-10-12 合肥大麦灯箱器材有限公司 A kind of advertising PVC board composite material and preparation method

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110183796A (en) * 2019-06-28 2019-08-30 蒙城县欣瑞特建材有限公司 A kind of low cost waste recovery PVC wood plastic plate

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