CN108659263A - A kind of modified calcium carbonate and its application in PVC wood plastic clad plate - Google Patents
A kind of modified calcium carbonate and its application in PVC wood plastic clad plate Download PDFInfo
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- CN108659263A CN108659263A CN201810509736.XA CN201810509736A CN108659263A CN 108659263 A CN108659263 A CN 108659263A CN 201810509736 A CN201810509736 A CN 201810509736A CN 108659263 A CN108659263 A CN 108659263A
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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
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- 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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- 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
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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
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
- C08K9/06—Ingredients treated with organic substances with silicon-containing compounds
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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
- C08L27/00—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 a halogen; Compositions of derivatives of such polymers
- C08L27/02—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 a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—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 a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08L27/06—Homopolymers or copolymers of vinyl chloride
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/02—CO2-releasing, e.g. NaHCO3 and citric acid
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- 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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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2497/00—Characterised by the use of lignin-containing materials
- C08J2497/02—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
Abstract
The invention discloses a kind of modified calcium carbonate and its PVC wood plastic clad plate application, the PVC wood plastic clad plate includes that the raw material of following parts by weight is made：35 parts of 100 parts of polyvinyl chloride resin, 10 20 parts of end hydroxy butadiene, 40 60 parts of wood powder, 30 50 parts of modified calcium carbonate, 48 parts of aramid fiber, 13 parts of polyether-modified dimethyl silicone polymer, 35 parts of sodium carboxymethylcellulose, 35 parts of composite foamable agent, 13 parts of coupling agent, 24 parts of stabilizer, 13 parts of lubricant and processing aid.The modified calcium carbonate first uses coconut oleoyl amine sulfosuccinic acid monoesters disodium and iso-spermaceti ester alcohol stearic acid surface to be modified, it is twice-modified with eight aminophenyl cagelike silsesquioxanes and polyacrylamide again, obtained calcium carbonate applications can assign the strong excellent mechanical property of composite plate, shock resistance, heat resistance and anti-flammability in PVC composite plates.
Description
Technical field
The present invention relates to wood plastic composite technical field, specifically a kind of modified calcium carbonate and its compound in PVC wood plastic
The application of plate.
Background technology
PVC wood plastic clad plate is mixed by high temperature using raw materials such as wood powder, bamboo powder, agricultural residues powder and polyvinyl chloride resins
It closes, a kind of composite material made from machine-shaping.PVC wood plastic clad plate with more it is water-fast, corrosion-resistant, fire prevention, it is mould proof, not by worm
The advantages that eating into, is pollution-free, easy to process, is widely used in interior door, skirting, integral cabinet, wardrobe, exterior wall cladding, smallpox
Furred ceiling, decorative wall panels, outdoor flooring, fence upright, plastic-steel wayside pavilion, gardens guardrail, balcony guardrail, enclose garden fence, leisure bench,
Set the fields such as pond, flower stand, flower case air conditoner support, Air conditioner cover, shutter, road marking board, conveying tray.Polyvinyl chloride resin is due to it
There are a large amount of polarity C-Cl keys in molecular chain structure, there are larger active forces between molecule, belong to hard brittle material, impact strength
It is relatively low, and there is notch sensitivity, by easy embrittlement when external impacts, it is therefore desirable to carry out toughening modifying to hard PVC.
Important filler one of of the calcium carbonate as PVC wood plastic plank, but since calcium carbonate particle grain size is smaller, on surface
Atomicity is more, then surface energy is higher, and suction-operated is stronger, mutually reunites between each particle；Followed by calcium carbonate is as a kind of
Inorganic filler, particle surface is hydrophilic and oleophobic, with the compatibility of polyvinyl chloride resin it is poor, easily form aggregation, cause to lack inside high polymer
It falls into, mechanical property is deteriorated.In order to improve the filling capacity of calcium carbonate, it is necessary to using effective technique and surface modifying method to it
Calcium carbonate carries out surface modification.It is usually at present aliphatic acid to the surface conditioning agent in calcium carbonate modified method, mainly selected
Or its salt, although the dispersibility and processing fluidity of system make moderate progress, since polyvinyl chloride resin is difficult effective with pearl filler
In conjunction with leading to the interfacial adhesion force difference of matrix and filler, to cause the mechanical strength of composite material not high.
The disclosure of background above technology contents is only used for inventive concept and the technical solution that auxiliary understands the present invention, not
The prior art for necessarily belonging to present patent application, no tangible proof show the above present patent application the applying date
In the case of having disclosed, above-mentioned background technology should not be taken to the novelty and creativeness of evaluation the application.
Invention content
Present invention aims at provide strong a kind of good each component compatibility, high intensity, shock resistance, good flame resistance, resistance to
PVC wood plastic clad plate hot, with long service life.
An object of the present disclosure is to provide a kind of modified calcium carbonate applied to PVC wood plastic clad plate, the carbon modified
Sour calcium is modified by following steps：
（1）Lime stone addition crusher is crushed so that the mesh of material mesh number >=20 obtains calcium carbonate coarse powder；
（2）Grinder is added in calcium carbonate coarse powder, coconut oleoyl amine sulfosuccinic acid monoesters disodium is added and different cetanol is stearic
The modifying agent of acid esters composition, the addition of the modifying agent are the 2-4% of lime stone weight, and grinding, it is 200-400 mesh to obtain grain size
Calcium carbonate fine powder；
（3）By twice-modified dose of addition of calcium carbonate fine powder, eight aminophenyl cagelike silsesquioxanes and polyacrylamide composition
Blender, twice-modified dose of addition are the 1.5-2.5% of lime stone weight, and high-speed stirred is uniformly mixed, and obtains modified carbonic acid
Calcium；
（4）Modified calcium carbonate is dried, 600-1000 mesh is ground to, is sieved, obtains PVC wood plastic clad plate modified calcium carbonate.
Further, the weight ratio of the coconut oleoyl amine sulfosuccinic acid monoesters disodium and iso-spermaceti ester alcohol stearic acid is 1:
1-3。
Further, in described twice-modified dose eight aminophenyl cagelike silsesquioxanes and polyacrylamide weight ratio
It is 1:2-3.
The present invention second is designed to provide application of the modified calcium carbonate in PVC wood plastic clad plate, the PVC wood plastic
Composite plate includes that the raw material of following parts by weight is made：
100 parts of polyvinyl chloride resin, 10-20 parts of end hydroxy butadiene, 40-60 parts of wood powder, 30-50 parts of modified calcium carbonate, aramid fiber
4-8 parts, dimethyl silicone polymer 1-3 parts polyether-modified, 3-5 parts of sodium carboxymethylcellulose, 3-5 parts of composite foamable agent, coupling agent
3-5 parts of 1-3 parts, 2-4 parts of stabilizer, 1-3 parts of lubricant and processing aid.
Further, the composite foamable agent is 1 by weight ratio:The sodium bicarbonate and sodium N-lauroyl sarcosinate group of 2-4
At.
Further, the coupling agent includes one in polyetherimide, titanate coupling agent and Lü Zuqian
Kind or multiple combinations.
Further, the stabilizer includes dibutyl tin lauric acid maleate or/and calcium-zinc composite stabilizing agent.
Further, the lubricant is made of castor oil polyoxyethylene ether and pentaerythrite palmitate.
Further, the processing aid is made of zinc stearate and methacrylate-Bismaleimide Copolymer.
Third of the present invention is designed to provide the preparation method of the PVC wood plastic clad plate, includes the following steps：
S1:Above-mentioned each raw material is weighed according to above-mentioned formula, then blender is added in wood powder alkene, and polyether-modified poly dimethyl is added
Siloxanes and sodium carboxymethylcellulose obtain modified mixture；
S2:Homogenizer is added in polyvinyl chloride resin and end hydroxy butadiene, 100-130 DEG C is warming up to, adds modified carbonic acid
Calcium, aramid fiber, modified mixture, composite foamable agent, coupling agent, stabilizer, lubricant and processing aid, stir evenly, obtain
Mixed material；
S3:Said mixture material is delivered to conical double screw extruder, extrusion molding at being 150-170 DEG C in temperature is cooling
Sizing is to get PVC wood plastic clad plate.
Compared with prior art, it advantages of the present invention and has the beneficial effect that：
1, calcium carbonate used in the present invention first use coconut oleoyl amine sulfosuccinic acid monoesters disodium and iso-spermaceti ester alcohol stearic acid into
Row surface is modified, due to Long carbon chain aliphatic acid, the hydroxyl of coconut oleoyl amine sulfosuccinic acid monoesters disodium and iso-spermaceti ester alcohol stearic acid
The groups such as base, carboxyl, carbonyl, sulfonic group, cocounut oil can not only improve the compatibility, dispersibility and processing fluidity of calcium carbonate,
Each group and PVC wood plastic System forming network structure so that calcium carbonate has good compatibility with polyvinyl chloride resin and wood powder, carries
High PVC wood moulding reaction system interfacial adhesion, and then improve the mechanical property of plank.
2, calcium carbonate of the present invention is carried out with eight aminophenyl cagelike silsesquioxanes and polyacrylamide again by modified
Secondary surface is modified, since eight aminophenyl cagelike silsesquioxanes are inorganic-organic hybridization structure, on calcium carbonate particle surface
Introduce silicon oxygen bond, phenyl and amino, when composite plate is ignited, siloxanes move to rapidly composite surface performance protective layer every
Oxygen, heat-insulated, the burning of flame-proof sheet material, and eight aminophenyl cagelike silsesquioxane of siloxy group can enhance calcium carbonate and PVC
Compatibility, the mechanical property of PVC board will not only be reduced by being added, and can also improve the notch punching of the PVC board of plank
Hit intensity and tensile break strength；It is equipped with polyacrylamide again, the flame retardant effect of PVC board is more notable.
3, for the present invention using the coordinative role of unique composition of raw materials and each component, compatibility is good, and the PVC wood plastic of preparation is multiple
Plywood have high intensity, high tenacity, shock resistance strong, good flame resistance, it is wear-resisting, heat-resisting, be unlikely to deform, that stability is good etc. is excellent
Point can be widely used in the building fields such as timber floor, ceiling, wallboard.
4, the present invention polyether-modified dimethyl silicone polymer and sodium carboxymethylcellulose modified wood powder, due to polyether-modified
Si-O-C in dimethyl silicone polymer molecule can assign the excellent anti-flammability of wood powder, anti-aging, weatherability etc., and be equipped with
Sodium carboxymethylcellulose is closed using the compatibility and dispersibility that can improve wood powder and PVC composite plate systems, improves the anti-of plank
Compressive Strength and impact resistance.
5, polyvinyl chloride resin of the present invention is equipped with end hydroxy butadiene, can significantly improve the toughness of composite plate, improve product
Impact resistance and crack resistance.
6, the product uniform foam cell that the foaming agent that uses of the present invention is, the interaction force between feed change molecule, carries
The mechanical property of high product；Used lubricant and processing aid not only improve the dispersibility and processing fluidity of system, also
The finish and intensity of composite board can be improved.
7, the raw material sources of PVC composite plates of the present invention are extensive, preparation process is simple, cost reduction, product comprehensive performance are excellent
It is different, industrialized production easy to implement.
Specific implementation mode
Invention is further described in detail With reference to embodiment.It is emphasized that following the description is only
It is merely exemplary, the range being not intended to be limiting of the invention and its application.
Embodiment 1
A kind of PVC wood plastic clad plate, including the raw material of following parts by weight are made：100 parts of polyvinyl chloride resin, end hydroxy butadiene
15 parts, 50 parts of wood powder, 45 parts of modified calcium carbonate, 5 parts of aramid fiber, 2 parts of polyether-modified dimethyl silicone polymer, carboxymethyl cellulose
4 parts of plain sodium, 3.5 parts of composite foamable agent, 2 parts of titanate coupling agent, 3 parts of dibutyl tin lauric acid maleate stabilizer, lubrication
3 parts of 2 parts of agent and processing aid.
The composite foamable agent is 1 by weight ratio:2.5 sodium bicarbonate and sodium N-lauroyl sarcosinate composition.The profit
Lubrication prescription is 2 by weight ratio:1 castor oil polyoxyethylene ether and pentaerythrite palmitate composition.The processing aid is by weight
Than being 1:2 zinc stearates and methacrylate-Bismaleimide Copolymer composition.
The modified calcium carbonate is modified by following steps：
（1）Lime stone addition crusher is crushed so that the mesh of material mesh number >=20 obtains calcium carbonate coarse powder；
（2）Grinder is added in calcium carbonate coarse powder, it is 1 to add mass ratio:2 coconut oleoyl amine sulfosuccinic acid monoesters disodium and
The modifying agent of iso-spermaceti ester alcohol stearic acid composition, the addition of the modifying agent are the 3% of lime stone weight, and grinding, obtaining grain size is
The calcium carbonate fine powder of 250 mesh；
（3）By calcium carbonate fine powder, weight ratio 1:The two of 3 eight aminophenyl cagelike silsesquioxanes and polyacrylamide composition
Blender is added in secondary modifying agent, and twice-modified dose of addition is the 2% of lime stone weight, and high-speed stirred is uniformly mixed, and obtains modification
Calcium carbonate；
（4）Modified calcium carbonate is dried, 600 mesh are ground to, is sieved, obtains PVC wood plastic clad plate modified calcium carbonate.
The preparation method of the PVC wood plastic clad plate, includes the following steps：
S1:Above-mentioned each raw material is weighed according to above-mentioned formula, then blender is added in wood powder alkene, and polyether-modified poly dimethyl is added
Siloxanes and sodium carboxymethylcellulose obtain modified mixture；
S2:Homogenizer is added in polyvinyl chloride resin and end hydroxy butadiene, is warming up to 120 DEG C, add modified calcium carbonate,
Aramid fiber, modified mixture, composite foamable agent, coupling agent, stabilizer, lubricant and processing aid, stir evenly, must mix
Material；
S3:Said mixture material is delivered to conical double screw extruder, extrusion molding at being 150-170 DEG C in temperature is cooling
Sizing is to get PVC wood plastic clad plate.
Embodiment 2
A kind of PVC wood plastic clad plate, including the raw material of following parts by weight are made：100 parts of polyvinyl chloride resin, end hydroxy butadiene
10 parts, 45 parts of wood powder, 50 parts of modified calcium carbonate, 4 parts of aramid fiber, 1 part of polyether-modified dimethyl silicone polymer, carboxymethyl cellulose
5 parts of plain sodium, 4 parts of composite foamable agent, 1.5 parts of polyetherimide coupling agent, 4 parts of calcium zinc stabilizer, 1.5 parts of lubricant and processing help
4 parts of agent.
The composite foamable agent is 1 by weight ratio:3 sodium bicarbonate and sodium N-lauroyl sarcosinate composition.The lubrication
Agent is 1 by weight ratio:1 castor oil polyoxyethylene ether and pentaerythrite palmitate composition.The processing aid is by weight ratio
It is 1:3 zinc stearates and methacrylate-Bismaleimide Copolymer composition.
The modified calcium carbonate is modified by following steps：
（1）Lime stone addition crusher is crushed so that the mesh of material mesh number >=20 obtains calcium carbonate coarse powder；
（2）Grinder is added in calcium carbonate coarse powder, it is 1 to add mass ratio:1.5 coconut oleoyl amine sulfosuccinic acid monoesters disodium
With the modifying agent of iso-spermaceti ester alcohol stearic acid composition, the addition of the modifying agent is the 2.5% of lime stone weight, and grinding obtains grain
Diameter is the calcium carbonate fine powder of 400 mesh；
（3）By calcium carbonate fine powder, weight ratio 1:The two of 2 eight aminophenyl cagelike silsesquioxanes and polyacrylamide composition
Blender is added in secondary modifying agent, and twice-modified dose of addition is the 1.5% of lime stone weight, and high-speed stirred is uniformly mixed, and must be changed
Property calcium carbonate；
（4）Modified calcium carbonate is dried, 800 mesh are ground to, is sieved, obtains PVC wood plastic clad plate modified calcium carbonate.
The preparation method of the PVC wood plastic clad plate, includes the following steps：
S1:Above-mentioned each raw material is weighed according to above-mentioned formula, then blender is added in wood powder alkene, and polyether-modified poly dimethyl is added
Siloxanes and sodium carboxymethylcellulose obtain modified mixture；
S2:Homogenizer is added in polyvinyl chloride resin and end hydroxy butadiene, is warming up to 100 DEG C, add modified calcium carbonate,
Aramid fiber, modified mixture, composite foamable agent, coupling agent, stabilizer, lubricant and processing aid, stir evenly, must mix
Material；
S3:Said mixture material is delivered to conical double screw extruder, extrusion molding at being 150-170 DEG C in temperature is cooling
Sizing is to get PVC wood plastic clad plate.
Embodiment 3
A kind of PVC wood plastic clad plate, including the raw material of following parts by weight are made：100 parts of polyvinyl chloride resin, end hydroxy butadiene
20 parts, 60 parts of wood powder, 40 parts of modified calcium carbonate, 6 parts of aramid fiber, 3 parts of polyether-modified dimethyl silicone polymer, carboxymethyl cellulose
3 parts of plain sodium, 4 parts of composite foamable agent, 2.5 parts of Lü Zuqian coupling agent, 2.5 parts of calcium-zinc composite stabilizing agent, lubricant
1.5 parts and 4 parts of processing aid.
The composite foamable agent is 1 by weight ratio:3 sodium bicarbonate and sodium N-lauroyl sarcosinate composition.The lubrication
Agent is 1 by weight ratio:1 castor oil polyoxyethylene ether and pentaerythrite palmitate composition.The processing aid is by weight ratio
It is 1:3 zinc stearates and methacrylate-Bismaleimide Copolymer composition.
The modified calcium carbonate is modified by following steps：
（1）Lime stone addition crusher is crushed so that the mesh of material mesh number >=20 obtains calcium carbonate coarse powder；
（2）Grinder is added in calcium carbonate coarse powder, it is 1 to add mass ratio:3 coconut oleoyl amine sulfosuccinic acid monoesters disodium and
The modifying agent of iso-spermaceti ester alcohol stearic acid composition, the addition of the modifying agent are the 4% of lime stone weight, and grinding, obtaining grain size is
The calcium carbonate fine powder of 300 mesh；
（3）By calcium carbonate fine powder, weight ratio 1:The two of 2 eight aminophenyl cagelike silsesquioxanes and polyacrylamide composition
Blender is added in secondary modifying agent, and twice-modified dose of addition is the 1.5% of lime stone weight, and high-speed stirred is uniformly mixed, and must be changed
Property calcium carbonate；
（4）Modified calcium carbonate is dried, 1000 mesh are ground to, is sieved, obtains PVC wood plastic clad plate modified calcium carbonate.
The preparation method of the PVC wood plastic clad plate, includes the following steps：
S1:Above-mentioned each raw material is weighed according to above-mentioned formula, then blender is added in wood powder alkene, and polyether-modified poly dimethyl is added
Siloxanes and sodium carboxymethylcellulose obtain modified mixture；
S2:Homogenizer is added in polyvinyl chloride resin and end hydroxy butadiene, is warming up to 130 DEG C, add modified calcium carbonate,
Aramid fiber, modified mixture, composite foamable agent, coupling agent, stabilizer, lubricant and processing aid, stir evenly, must mix
Material；
S3:Said mixture material is delivered to conical double screw extruder, extrusion molding at being 150-170 DEG C in temperature is cooling
Sizing is to get PVC wood plastic clad plate.
Embodiment 4
A kind of PVC wood plastic clad plate, including the raw material of following parts by weight are made：100 parts of polyvinyl chloride resin, end hydroxy butadiene
18 parts, 50 parts of wood powder, 45 parts of modified calcium carbonate, 5 parts of aramid fiber, 2.5 parts of polyether-modified dimethyl silicone polymer, carboxymethyl it is fine
Plain 4 parts of the sodium of dimension, 3 parts of composite foamable agent, 2 parts of Lü Zuqian coupling agent, dibutyl tin lauric acid maleate stabilizer
3 parts of 3 parts, 2.5 parts of lubricant and processing aid.
The composite foamable agent is 1 by weight ratio:4 sodium bicarbonate and sodium N-lauroyl sarcosinate composition.The lubrication
Agent is 1 by weight ratio:2 castor oil polyoxyethylene ether and pentaerythrite palmitate composition.The processing aid is by weight ratio
It is 1:2 zinc stearates and methacrylate-Bismaleimide Copolymer composition.
The modified calcium carbonate is modified by following steps：
（1）Lime stone addition crusher is crushed so that the mesh of material mesh number >=20 obtains calcium carbonate coarse powder；
（2）Grinder is added in calcium carbonate coarse powder, it is 1 to add mass ratio:1 coconut oleoyl amine sulfosuccinic acid monoesters disodium and
The modifying agent of iso-spermaceti ester alcohol stearic acid composition, the addition of the modifying agent are the 2.5% of lime stone weight, and grinding obtains grain size
For the calcium carbonate fine powder of 200 mesh；
（3）By calcium carbonate fine powder, weight ratio 1:The two of 3 eight aminophenyl cagelike silsesquioxanes and polyacrylamide composition
Blender is added in secondary modifying agent, and twice-modified dose of addition is the 2% of lime stone weight, and high-speed stirred is uniformly mixed, and obtains modification
Calcium carbonate；
（4）Modified calcium carbonate is dried, 800 mesh are ground to, is sieved, obtains PVC wood plastic clad plate modified calcium carbonate.
The preparation method of the PVC wood plastic clad plate, includes the following steps：
S1:Above-mentioned each raw material is weighed according to above-mentioned formula, then blender is added in wood powder alkene, and polyether-modified poly dimethyl is added
Siloxanes and sodium carboxymethylcellulose obtain modified mixture；
S2:Homogenizer is added in polyvinyl chloride resin and end hydroxy butadiene, is warming up to 120 DEG C, add modified calcium carbonate,
Aramid fiber, modified mixture, composite foamable agent, coupling agent, stabilizer, lubricant and processing aid, stir evenly, must mix
Material；
S3:Said mixture material is delivered to conical double screw extruder, extrusion molding at being 150-170 DEG C in temperature is cooling
Sizing is to get PVC wood plastic clad plate.
Comparative example
The present embodiment and embodiment 4 the difference is that：Calcium carbonate used in the present invention is that lime stone is directly ground to 800
Mesh, without any modification.
Embodiment 1-4 and comparative example are prepared into the tensile strength, curved that PVC wood plastic clad plate conventionally measures batten
Qu Qiangdu, impact strength, heat distortion temperature and oxygen index (OI), test result are as shown in table 1.
Table 1：The performance test results of PVC wood plastic clad plate of the present invention
| Product | Tensile strength（MPa） | Bending strength（MPa） | Impact strength（KJ/m2） | Heat distortion temperature（℃） | Oxygen index (OI)（%） |
| Embodiment 1 | 49.8 | 23.4 | 11.3 | 148 | 37.1 |
| Embodiment 2 | 47.3 | 26.7 | 12.8 | 135 | 35.4 |
| Embodiment 3 | 52.1 | 20.6 | 13.9 | 142 | 38.9 |
| Embodiment 4 | 48.9 | 22.4 | 10.8 | 145 | 36.2 |
| Comparative example | 40.5 | 17.3 | 8.7 | 132 | 31.2 |
It is learnt from upper table, PVC wood plastic clad plate prepared by the present invention has excellent intensity, impact resistance, heat resistance and toughness,
It has broad application prospects.
It, cannot the above content is specific/preferred embodiment further description made for the present invention is combined
Assert that the specific implementation of the present invention is confined to these explanations.General technical staff of the technical field of the invention is come
It says, without departing from the inventive concept of the premise, some replacements or modification can also be made to the embodiment that these have been described,
And these are substituted or variant is regarded as belonging to the scope of protection of the present invention.
Claims (10)
1. a kind of modified calcium carbonate applied to PVC wood plastic clad plate, it is characterised in that：The modified calcium carbonate is by following step
It is rapid modified：
（1）Lime stone addition crusher is crushed so that the mesh of material mesh number >=20 obtains calcium carbonate coarse powder；
（2）Grinder is added in calcium carbonate coarse powder, coconut oleoyl amine sulfosuccinic acid monoesters disodium is added and different cetanol is stearic
The modifying agent of acid esters composition, the addition of the modifying agent are the 2-4% of lime stone weight, and grinding, it is 200-400 mesh to obtain grain size
Calcium carbonate fine powder；
（3）By twice-modified dose of addition of calcium carbonate fine powder, eight aminophenyl cagelike silsesquioxanes and polyacrylamide composition
Blender, twice-modified dose of addition are the 1.5-2.5% of lime stone weight, and high-speed stirred is uniformly mixed, and obtains modified carbonic acid
Calcium；
（4）Modified calcium carbonate is dried, 600-1000 mesh is ground to, is sieved, obtains PVC wood plastic clad plate modified calcium carbonate.
2. according to the modified calcium carbonate for being applied to PVC wood plastic clad plate described in right 1, it is characterised in that：The coconut oleoyl amine sulphur
The weight ratio of base monomester succinate disodium and iso-spermaceti ester alcohol stearic acid is 1:1-3.
3. being applied to the modified calcium carbonate of PVC wood plastic clad plate according to claim 1, it is characterised in that：It is described secondary to change
Property agent in the weight ratio of eight aminophenyl cagelike silsesquioxanes and polyacrylamide be 1:2-3.
4. modified calcium carbonate as described in claim 1 is in the application of PVC wood plastic clad plate, it is characterised in that：The PVC wood plastic is multiple
Plywood includes that the raw material of following parts by weight is made：100 parts of polyvinyl chloride resin, 10-20 parts of end hydroxy butadiene, wood powder 40-60
Part, 30-50 parts of modified calcium carbonate, 4-8 parts of aramid fiber, dimethyl silicone polymer 1-3 parts polyether-modified, sodium carboxymethylcellulose
3-5 parts of 3-5 parts, 3-5 parts of composite foamable agent, 1-3 parts of coupling agent, 2-4 parts of stabilizer, 1-3 parts of lubricant and processing aid.
5. application of the modified calcium carbonate in PVC wood plastic clad plate according to claim 4, it is characterised in that：The compound hair
Infusion is 1 by weight ratio:The sodium bicarbonate and sodium N-lauroyl sarcosinate of 2-4 forms.
6. application of the modified calcium carbonate in PVC wood plastic clad plate according to claim 4, it is characterised in that：The coupling agent
Including one or more combinations in polyetherimide, titanate coupling agent and Lü Zuqian.
7. application of the modified calcium carbonate in PVC wood plastic clad plate according to claim 4, it is characterised in that：The stabilizer
Including dibutyl tin lauric acid maleate or/and calcium-zinc composite stabilizing agent.
8. application of the modified calcium carbonate in PVC wood plastic clad plate according to claim 4, it is characterised in that：The lubricant
It is made of castor oil polyoxyethylene ether and pentaerythrite palmitate.
9. application of the modified calcium carbonate in PVC wood plastic clad plate according to claim 4, it is characterised in that：The processing helps
Agent is made of zinc stearate and methacrylate-Bismaleimide Copolymer.
10. a kind of preparation method of PVC wood plastic clad plate as claimed in claim 4, it is characterised in that：Include the following steps：
S1:Above-mentioned each raw material is weighed according to above-mentioned formula, blender is added in wood powder, and polyether-modified polydimethylsiloxanes are added
Alkane and sodium carboxymethylcellulose obtain modified mixture；
S2:Homogenizer is added in polyvinyl chloride resin and end hydroxy butadiene, 100-130 DEG C is warming up to, adds, carbon modified
Sour calcium, aramid fiber, modified mixture, composite foamable agent, coupling agent, stabilizer, lubricant and processing aid, stir evenly,
Obtain mixed material；
S3:Said mixture material is delivered to conical double screw extruder, extrusion molding at being 150-170 DEG C in temperature is cooling
Sizing is to get PVC wood plastic clad plate.
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| CN111040251A (en) * | 2019-11-25 | 2020-04-21 | 池州市金艺新材料有限公司 | Modified calcium carbonate powder with low oil absorption value as well as preparation method and application thereof |
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| CN111574851A (en) * | 2020-04-30 | 2020-08-25 | 广西夏阳环保科技有限公司 | Method for preparing calcite powder for papermaking |
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| CN111040251B (en) * | 2019-11-25 | 2021-11-02 | 池州市金艺新材料有限公司 | Modified calcium carbonate powder with low oil absorption value as well as preparation method and application thereof |
| CN111574851A (en) * | 2020-04-30 | 2020-08-25 | 广西夏阳环保科技有限公司 | Method for preparing calcite powder for papermaking |
| CN111534123A (en) * | 2020-05-30 | 2020-08-14 | 安徽春和明生环保新材料科技有限公司 | Preparation process for resin-plastic-wood composite material |
| CN111704809A (en) * | 2020-06-12 | 2020-09-25 | 广西夏阳环保科技有限公司 | Method for preparing barium sulfate for plastics and paint |
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