CN104861338A - High-performance low-cost polyvinyl chloride insulating cable material and preparation method thereof - Google Patents
High-performance low-cost polyvinyl chloride insulating cable material and preparation method thereof Download PDFInfo
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- CN104861338A CN104861338A CN201410826661.XA CN201410826661A CN104861338A CN 104861338 A CN104861338 A CN 104861338A CN 201410826661 A CN201410826661 A CN 201410826661A CN 104861338 A CN104861338 A CN 104861338A
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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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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
- H01B3/443—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins from vinylhalogenides or other halogenoethylenic compounds
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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
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
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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
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/004—Additives being defined by their length
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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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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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
- C08K2201/00—Specific properties of additives
- C08K2201/017—Additives being an antistatic agent
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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
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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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
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
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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
- 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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- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a high-performance low-cost polyvinyl chloride insulating cable material and a preparation method thereof. The high-performance low-cost polyvinyl chloride insulating cable material comprises, by mass, 40-65% of polyvinyl chloride, 8-12% of modified carbon fiber, 5-10% of nanometer calcium carbonate, 5-8% of hydrogenated butadiene-acrylonitrile rubber powder, 2-4% of ACR, 0.5-1.5% of a calcium and zinc stabilizer, 5-10% of a plasticizer, 6-9% of a fire retardant, 1-3% of an antistatic agent, 0.5-2% of a light stabilizer, 0.1-0.5% of an antioxidant and 0.5-1% of a lubricant. The high-performance low-cost polyvinyl chloride insulating cable material has the advantages of excellent fire retardation property, excellent low temperature resistance, excellent impact toughness, excellent tensile strength, excellent elastic modulus, good electrical insulation performance, good weather ability, good processability and low cost.
Description
Technical field
The present invention relates to electric power field of material technology, specifically a kind of high-performance and low-cost polyvinyl chloride insulated cable material and preparation method thereof.
Background technology
Polyvinyl chloride, because good electrical insulation properties, excellent processing characteristics and cheap cost, has been widely used in the insulating material of electric wire.But it is because applied environment is different, also different to the performance requriements of polyvinyl chloride insulated cable material.At present, the polyvinyl chloride insulated cable material on market can not be suitable for high flame retardant, high-impact, low temperature resistant working conditions mostly very well, limits its range of application.
Summary of the invention
The object of the present invention is to provide the high-performance and low-cost polyvinyl chloride insulated cable material and preparation method thereof of a kind of high flame retardant, high-impact, low temperature resistant and wide accommodation.
The technical solution adopted for the present invention to solve the technical problems is: high-performance and low-cost polyvinyl chloride insulated cable material, and its component by mass percent proportioning is: polyvinyl chloride 40% ~ 65%, modified carbon fiber 8% ~ 12%, nano-calcium carbonate 5% ~ 10%, hydrogenated nitrile-butadiene rubber powder 5% ~ 8%, ACR 2% ~ 4%, calcium zinc stabilizer 0.5% ~ 1.5%, softening agent 5% ~ 10%, fire retardant 6% ~ 9%, static inhibitor 1% ~ 3%, photostabilizer 0.5% ~ 2%, oxidation inhibitor 0.1% ~ 0.5%, lubricant 0.5% ~ 1%.
The mean polymerisation degree of described polyvinyl chloride 800 ~ 1200, weight-average molecular weight 50000 ~ 120000, granularity is in 100 ~ 300 order scopes.
Described modified carbon fiber be surface through the modified oxidized process of perchloric acid solution and diameter 3 ~ 30 μm, length is at the polyacrylonitrile carbon fiber of 10 ~ 75cm scope.
Acrylonitrile content in described hydrogenated nitrile-butadiene rubber powder is at 25wt% ~ 40wt%.
Described nano-calcium carbonate be surface through aluminium titanium composite coupler activation treatment and particle diameter at the light calcium carbonate nanoparticle of 1 ~ 100nm.
Described ACR is the methyl methacrylate polymer with nucleocapsid structure.
Described softening agent is hexanaphthene 1, the 2-dioctyl phthalate diisononyl esters of mass ratio 1 ~ 2:1 and the compound of dioctyl sebacate.
Described fire retardant is mass ratio is the polyphenylene phosphonic acids sulfobenzide ester of 2 ~ 4:1 and the compound of polydimethylsiloxane.
Described static inhibitor is the stearic acid monoglycerides of mass ratio 1:1 and the compound of sodium alkyl benzene sulfonate.
Described photostabilizer is the compound of hindered amines high molecular photostabilizer GW-944Z and the GW-622 of mass ratio 1:1.
Described composite antioxidant is the Hinered phenols antioxidant 1010 of mass ratio 1:1 and the compound of phosphite ester kind antioxidant 168.
Described lubricant is the one in calcium stearate, ethylene bis stearamide, pentaerythritol stearate.
The preparation method of above-mentioned high-performance and low-cost polyvinyl chloride insulated cable material, comprises the following steps:
(1), by diameter 3 ~ 30 μm, to add mass concentration at the polyacrylonitrile carbon fiber of 10 ~ 75cm scope be in the perchloric acid solution of 98% to length, supersound process 30 ~ 120min at 60 DEG C ~ 90 DEG C temperature, then extremely neutral with deionized water rinsing, again by vacuum drying oven dry 24 ~ 48h at 80 DEG C ~ 150 DEG C temperature, obtain described modified carbon fiber;
(2) take each component, by weight ratio, comprise the modified carbon fiber that step (1) obtains;
(3), polyvinyl chloride, calcium zinc stabilizer, softening agent and static inhibitor are added in mixing machine successively, after heated and stirred to 60 DEG C ~ 80 DEG C, add the modified carbon fiber that step (1) obtains, and add other component, after heated and stirred to 90 DEG C ~ 115 DEG C, keep stirring 20 ~ 40min, then stop heating, when material naturally cools to below 45 DEG C, discharging;
(4), the material that step (3) obtains is added twin screw extruder to carry out plastifying air-cooled granulation, control twin screw extruder temperature 155 DEG C ~ 185 DEG C, screw speed in 20 ~ 40r/min scope, obtain described high-performance and low-cost polyvinyl chloride insulated cable material.
The invention has the beneficial effects as follows, the present invention has the advantages such as excellent flame retardant resistance, lower temperature resistance, toughness, tensile strength, Young's modulus, good electrical insulating property and weather resistance, and good processability, and cost is low.
Embodiment
Technical scheme of the present invention is further illustrated below in conjunction with concrete preferred embodiment.
Embodiment 1:
A kind of high-performance and low-cost polyvinyl chloride insulated cable material, its component by mass percent proportioning is: polyvinyl chloride 40%, modified carbon fiber 12%, nano-calcium carbonate 10%, hydrogenated nitrile-butadiene rubber powder 8%, ACR 4%, calcium zinc stabilizer 1.5%, softening agent 10%, fire retardant 9%, static inhibitor 2%, photostabilizer 2%, oxidation inhibitor 0.5%, calcium stearate 1%, described modified carbon fiber is that surface is through the modified oxidized process of perchloric acid solution, and diameter is at 3 ~ 30 μm, length is at the polyacrylonitrile carbon fiber of 10 ~ 75cm scope, and described nano-calcium carbonate is that surface is through aluminium titanium composite coupler activation treatment, and particle diameter is at the light calcium carbonate nanoparticle of 1 ~ 100nm, described softening agent is the hexanaphthene 1 of mass ratio 1:1, the compound of 2-dioctyl phthalate diisononyl esters and dioctyl sebacate, described fire retardant is mass ratio is the polyphenylene phosphonic acids sulfobenzide ester of 2:1 and the compound of polydimethylsiloxane, described static inhibitor is the stearic acid monoglycerides of mass ratio 1:1 and the compound of sodium alkyl benzene sulfonate, described photostabilizer is the compound of hindered amines high molecular photostabilizer GW-944Z and the GW-622 of mass ratio 1:1, and described composite antioxidant is the Hinered phenols antioxidant 1010 of mass ratio 1:1 and the compound of phosphite ester kind antioxidant 168.
Preparation method: (1), by diameter 3 ~ 30 μm, to add mass concentration at the polyacrylonitrile carbon fiber of 10 ~ 75cm scope be in the perchloric acid solution of 98% to length, supersound process 30 ~ 120min at 60 DEG C ~ 90 DEG C temperature, then extremely neutral with deionized water rinsing, again by vacuum drying oven dry 24 ~ 48h at 80 DEG C ~ 150 DEG C temperature, obtain described modified carbon fiber; (2) take each component, by weight ratio, comprise the modified carbon fiber that step (1) obtains; (3), polyvinyl chloride, calcium zinc stabilizer, softening agent and static inhibitor are added in mixing machine successively, after heated and stirred to 60 DEG C ~ 80 DEG C, add the modified carbon fiber that step (1) obtains, and add other component, after heated and stirred to 90 DEG C ~ 115 DEG C, keep stirring 20 ~ 40min, then stop heating, when material naturally cools to below 45 DEG C, discharging; (4), the material that step (3) obtains is added twin screw extruder to carry out plastifying air-cooled granulation, control twin screw extruder temperature 155 DEG C ~ 185 DEG C, screw speed in 20 ~ 40r/min scope, obtain described high-performance and low-cost polyvinyl chloride insulated cable material.
Embodiment 2:
A kind of high-performance and low-cost polyvinyl chloride insulated cable material, its component by mass percent proportioning is: polyvinyl chloride 65%, modified carbon fiber 8%, nano-calcium carbonate 5%, hydrogenated nitrile-butadiene rubber powder 5%, ACR 2%, calcium zinc stabilizer 0.5%, softening agent 5%, fire retardant 6%, static inhibitor 2%, photostabilizer 0.5%, oxidation inhibitor 0.1%, pentaerythritol stearate 0.9%, described modified carbon fiber is that surface is through the modified oxidized process of perchloric acid solution, and diameter is at 3 ~ 30 μm, length is at the polyacrylonitrile carbon fiber of 10 ~ 75cm scope, and described nano-calcium carbonate is that surface is through aluminium titanium composite coupler activation treatment, and particle diameter is at the light calcium carbonate nanoparticle of 1 ~ 100nm, described softening agent is the hexanaphthene 1 of mass ratio 2:1, the compound of 2-dioctyl phthalate diisononyl esters and dioctyl sebacate, described fire retardant is mass ratio is the polyphenylene phosphonic acids sulfobenzide ester of 4:1 and the compound of polydimethylsiloxane, described static inhibitor is the stearic acid monoglycerides of mass ratio 1:1 and the compound of sodium alkyl benzene sulfonate, described photostabilizer is the compound of hindered amines high molecular photostabilizer GW-944Z and the GW-622 of mass ratio 1:1, and described composite antioxidant is the Hinered phenols antioxidant 1010 of mass ratio 1:1 and the compound of phosphite ester kind antioxidant 168.
Preparation method: (1), by diameter 3 ~ 30 μm, to add mass concentration at the polyacrylonitrile carbon fiber of 10 ~ 75cm scope be in the perchloric acid solution of 98% to length, supersound process 30 ~ 120min at 60 DEG C ~ 90 DEG C temperature, then extremely neutral with deionized water rinsing, again by vacuum drying oven dry 24 ~ 48h at 80 DEG C ~ 150 DEG C temperature, obtain described modified carbon fiber; (2) take each component, by weight ratio, comprise the modified carbon fiber that step (1) obtains; (3), polyvinyl chloride, calcium zinc stabilizer, softening agent and static inhibitor are added in mixing machine successively, after heated and stirred to 60 DEG C ~ 80 DEG C, add the modified carbon fiber that step (1) obtains, and add other component, after heated and stirred to 90 DEG C ~ 115 DEG C, keep stirring 20 ~ 40min, then stop heating, when material naturally cools to below 45 DEG C, discharging; (4), the material that step (3) obtains is added twin screw extruder to carry out plastifying air-cooled granulation, control twin screw extruder temperature 155 DEG C ~ 185 DEG C, screw speed in 20 ~ 40r/min scope, obtain described high-performance and low-cost polyvinyl chloride insulated cable material.
Claims (10)
1. a high-performance and low-cost polyvinyl chloride insulated cable material, it is characterized in that, its component by mass percent proportioning is: polyvinyl chloride 40% ~ 65%, modified carbon fiber 8% ~ 12%, nano-calcium carbonate 5% ~ 10%, hydrogenated nitrile-butadiene rubber powder 5% ~ 8%, ACR 2% ~ 4%, calcium zinc stabilizer 0.5% ~ 1.5%, softening agent 5% ~ 10%, fire retardant 6% ~ 9%, static inhibitor 1% ~ 3%, photostabilizer 0.5% ~ 2%, oxidation inhibitor 0.1% ~ 0.5%, lubricant 0.5% ~ 1%.
2. high-performance and low-cost polyvinyl chloride insulated cable material according to claim 1, it is characterized in that, described modified carbon fiber be surface through the modified oxidized process of perchloric acid solution and diameter 3 ~ 30 μm, length is at the polyacrylonitrile carbon fiber of 10 ~ 75cm scope.
3. high-performance and low-cost polyvinyl chloride insulated cable material according to claim 1, is characterized in that, described nano-calcium carbonate be surface through aluminium titanium composite coupler activation treatment and particle diameter at the light calcium carbonate nanoparticle of 1 ~ 100nm.
4. high-performance and low-cost polyvinyl chloride insulated cable material according to claim 1, is characterized in that, described softening agent is hexanaphthene 1, the 2-dioctyl phthalate diisononyl esters of mass ratio 1 ~ 2:1 and the compound of dioctyl sebacate.
5. high-performance and low-cost polyvinyl chloride insulated cable material according to claim 1, is characterized in that, described fire retardant is mass ratio is the polyphenylene phosphonic acids sulfobenzide ester of 2 ~ 4:1 and the compound of polydimethylsiloxane.
6. high-performance and low-cost polyvinyl chloride insulated cable material according to claim 1, is characterized in that, described static inhibitor is the stearic acid monoglycerides of mass ratio 1:1 and the compound of sodium alkyl benzene sulfonate.
7. high-performance and low-cost polyvinyl chloride insulated cable material according to claim 1, is characterized in that, described photostabilizer is the compound of hindered amines high molecular photostabilizer GW-944Z and the GW-622 of mass ratio 1:1.
8. high-performance and low-cost polyvinyl chloride insulated cable material according to claim 1, is characterized in that, described composite antioxidant is the Hinered phenols antioxidant 1010 of mass ratio 1:1 and the compound of phosphite ester kind antioxidant 168.
9. high-performance and low-cost polyvinyl chloride insulated cable material according to claim 1, is characterized in that, described lubricant is the one in calcium stearate, ethylene bis stearamide, pentaerythritol stearate.
10. the preparation method of high-performance and low-cost polyvinyl chloride insulated cable material according to claim 1, is characterized in that, comprise the following steps:
(1), by diameter 3 ~ 30 μm, to add mass concentration at the polyacrylonitrile carbon fiber of 10 ~ 75cm scope be in the perchloric acid solution of 98% to length, supersound process 30 ~ 120min at 60 DEG C ~ 90 DEG C temperature, then extremely neutral with deionized water rinsing, again by vacuum drying oven dry 24 ~ 48h at 80 DEG C ~ 150 DEG C temperature, obtain described modified carbon fiber;
(2) take each component, by weight ratio, comprise the modified carbon fiber that step (1) obtains;
(3), polyvinyl chloride, calcium zinc stabilizer, softening agent and static inhibitor are added in mixing machine successively, after heated and stirred to 60 DEG C ~ 80 DEG C, add the modified carbon fiber that step (1) obtains, and add other component, after heated and stirred to 90 DEG C ~ 115 DEG C, keep stirring 20 ~ 40min, then stop heating, when material naturally cools to below 45 DEG C, discharging;
(4), the material that step (3) obtains is added twin screw extruder to carry out plastifying air-cooled granulation, control twin screw extruder temperature 155 DEG C ~ 185 DEG C, screw speed in 20 ~ 40r/min scope, obtain described high-performance and low-cost polyvinyl chloride insulated cable material.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410826661.XA CN104861338A (en) | 2014-12-29 | 2014-12-29 | High-performance low-cost polyvinyl chloride insulating cable material and preparation method thereof |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105924710A (en) * | 2016-05-18 | 2016-09-07 | 安徽华能电缆集团有限公司 | Fire-retardant and damp-proof cable sheath formulation and preparation method thereof |
| CN105949652A (en) * | 2016-05-23 | 2016-09-21 | 桐城市中汇塑业有限公司 | Polyvinyl chloride cable material processing modifier |
| CN107163409A (en) * | 2017-05-31 | 2017-09-15 | 晋源电气集团股份有限公司 | A kind of cables for submersible oil pump |
| CN107189279A (en) * | 2017-07-18 | 2017-09-22 | 合肥安力电力工程有限公司 | A kind of heatproof wire CABLE MATERIALS being used in power circuit and preparation method thereof |
| CN107884891A (en) * | 2017-12-27 | 2018-04-06 | 江苏亨通光电股份有限公司 | A kind of high density resistance to compression fiber bundle optical cable for data center |
| CN108395575A (en) * | 2018-02-27 | 2018-08-14 | 新疆兵团现代绿色氯碱化工工程研究中心(有限公司) | A kind of polyolefin injection grade nano-calcium carbonate and its production method |
| CN109021460A (en) * | 2018-08-30 | 2018-12-18 | 安徽瑞腾塑业有限公司 | A kind of formula and its processing technology of PVC insulating materials |
| CN109111657A (en) * | 2018-08-17 | 2019-01-01 | 安徽瑞腾塑业有限公司 | A kind of insulation PVC plastic |
| CN109517287A (en) * | 2017-09-16 | 2019-03-26 | 上海电缆厂（南京）有限公司 | A kind of corrosion proof cable material |
| CN110283405A (en) * | 2019-07-19 | 2019-09-27 | 苏州爱得华塑化有限公司 | A kind of modified shock resistance hard PVC material |
-
2014
- 2014-12-29 CN CN201410826661.XA patent/CN104861338A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105924710A (en) * | 2016-05-18 | 2016-09-07 | 安徽华能电缆集团有限公司 | Fire-retardant and damp-proof cable sheath formulation and preparation method thereof |
| CN105949652A (en) * | 2016-05-23 | 2016-09-21 | 桐城市中汇塑业有限公司 | Polyvinyl chloride cable material processing modifier |
| CN107163409A (en) * | 2017-05-31 | 2017-09-15 | 晋源电气集团股份有限公司 | A kind of cables for submersible oil pump |
| CN107189279A (en) * | 2017-07-18 | 2017-09-22 | 合肥安力电力工程有限公司 | A kind of heatproof wire CABLE MATERIALS being used in power circuit and preparation method thereof |
| CN109517287A (en) * | 2017-09-16 | 2019-03-26 | 上海电缆厂（南京）有限公司 | A kind of corrosion proof cable material |
| CN107884891A (en) * | 2017-12-27 | 2018-04-06 | 江苏亨通光电股份有限公司 | A kind of high density resistance to compression fiber bundle optical cable for data center |
| CN108395575A (en) * | 2018-02-27 | 2018-08-14 | 新疆兵团现代绿色氯碱化工工程研究中心(有限公司) | A kind of polyolefin injection grade nano-calcium carbonate and its production method |
| CN109111657A (en) * | 2018-08-17 | 2019-01-01 | 安徽瑞腾塑业有限公司 | A kind of insulation PVC plastic |
| CN109021460A (en) * | 2018-08-30 | 2018-12-18 | 安徽瑞腾塑业有限公司 | A kind of formula and its processing technology of PVC insulating materials |
| CN110283405A (en) * | 2019-07-19 | 2019-09-27 | 苏州爱得华塑化有限公司 | A kind of modified shock resistance hard PVC material |
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Application publication date: 20150826 |