CN111004458A - High-strength polyvinyl chloride folding plate and preparation method thereof - Google Patents
High-strength polyvinyl chloride folding plate and preparation method thereof Download PDFInfo
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- CN111004458A CN111004458A CN201911390614.4A CN201911390614A CN111004458A CN 111004458 A CN111004458 A CN 111004458A CN 201911390614 A CN201911390614 A CN 201911390614A CN 111004458 A CN111004458 A CN 111004458A
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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
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/04—Antistatic
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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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- 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
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
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- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention belongs to the technical field of PVC plastic plates, and particularly relates to a high-strength PVC folding plate and a preparation method thereof. The raw materials comprise PVC resin powder, processing aid, toughening agent, filler, wood powder, stabilizer, lubricant and composite antistatic agent. The high-strength polyvinyl chloride folding-resistant plate is a modified polyvinyl chloride material, and the toughening agent is added in the production formula, so that the folding and bending resistance of the plate in the longitudinal and transverse directions can be greatly improved, and the mechanical properties such as the tensile strength of the plate can be improved, and the change can ensure that the plate can be continuously bent, and has little or no use of nails and glue after being grooved in the longitudinal and transverse directions when in use; the product has less seams, good sealing and more beautiful appearance; the preparation method of the high-strength polyvinyl chloride folded plate is simple and easy to implement and easy to realize.
Description
Technical Field
The invention belongs to the technical field of PVC plastic plates, and particularly relates to a high-strength PVC folding plate and a preparation method thereof.
Background
At present, with the development of world economy and the development of earth resources, the earth environment is greatly damaged, more and more world organizations call for reducing the felling of trees, use less wood products, advocate strongly the substitution of plastics for wood, and plastic products represented by PVC, PP and PE come from the beginning, in particular, PVC products, PVC plates and profiles have been applied to various fields, and PVC plastic plates have been widely applied to the fields of decoration, medical health, transportation and the like. However, due to the inherent defects of the PVC plastic, the PVC plastic plate has some quality shortages, such as: the plate is brittle at low temperature, low in strength, small in hardness and easy to warp, and the defects cause that the plate is fixed by nails or other adhesives after being cut when meeting corners and bends when being applied to building materials, so that the finished product has more joints and more nails and adhesives are used, and the use cost of the finished product is increased; moreover, the PVC plastic plate has weak ink adsorption force and is easy to drop ink; the defects of easy generation of static electricity, easy dust absorption, unattractive appearance and the like on the surface of the plate can provide a layer of shadow on the market image of the PVC plastic plate, and limit the development speed and the application range of the PVC plastic plate.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: overcomes the defects of the prior art and provides a high-strength polyvinyl chloride folding plate. The high-strength polyvinyl chloride folding plate has the advantages of no breakage of grooving, high strength, high plate hardness, corrosion resistance, static resistance, strong wood texture, good ink absorption performance, good sealing effect and the like; the invention also provides a preparation method thereof.
The high-strength polyvinyl chloride folded plate disclosed by the invention comprises the following raw materials in parts by mass:
wherein:
the PVC resin powder is polyvinyl chloride resin with the polymerization degree of 900-1100.
The processing aid is one or two of acrylate or styrene; preferably a mixture of acrylic esters and styrene, wherein the mass ratio of the acrylic esters to the styrene is 1: 1-3: 1.
the acrylate is a polymer of methyl methacrylate and either butyl acrylate or ethyl acrylate.
Styrenics are polymers of styrene and acrylonitrile.
The toughening agent is one or two of ACM or MBS; MBS is methyl methacrylate-butadiene-styrene; the ACM is acrylonitrile-chloro-methyl methacrylate, preferably a compound of the ACM and MBS, and the mass ratio of the ACM to the MBS is 5: 1-9: 1.
the filler is one or more of heavy calcium carbonate, light calcium carbonate or activated calcium carbonate.
The wood powder is one of pine, bamboo, poplar or fir powder, the granularity is 30-100 meshes, and the granularity is uniform.
The stabilizer is a compound of calcium stearate, zinc stearate and hydrotalcite.
The lubricant is one or more of fatty acid ester, high-melting-point paraffin or polyethylene wax; the fatty acid ester is preferably a fatty acid pentaerythritol ester.
The composite antistatic agent is a composite of ethoxylated fatty alkylamine and a quaternary ammonium salt compound, and the compounding mass ratio of the ethoxylated fatty alkylamine to the quaternary ammonium salt compound is 1: 1-1: 5; the quaternary ammonium salt compound is one of tridodecyl methyl ammonium chloride or 4-vinyl pyridine-acrylamide copolymer (QCVA); the ethoxylated fatty alkylamine is one of ethoxylated lauryl tyramine or Glycerol Monostearate (GMS).
The invention relates to a preparation method of a high-strength polyvinyl chloride folded plate, which comprises the following steps:
(1) the materials with the formula ratio are automatically blended through a full-automatic blending system, then are added into a high-speed mixer, are heated to 115-125 ℃, are cooled in a cold mixer, and are placed into a storage bin for standby when being cooled to below 60 ℃;
(2) extrusion and shaping: sucking the mixture into a hopper of a double-screw extruder by a vacuum feeding machine, melting and plasticizing the mixture by the extruder, then feeding the mixture into an extrusion die, extruding the mixture through a die opening, and then shaping, trimming, drawing and automatically metering and cutting the mixture by a cooling and shaping device to obtain the high-strength polyvinyl chloride folded plate.
Wherein:
the rotating speed of the main machine of the double-screw extruder in the step (2) is 16-25 rpm/min, the current of the main machine is 50-60A, the temperature of the screw cylinder is 180-190 ℃, and the temperature of the die is 185-200 ℃.
The high-strength polyvinyl chloride folding-resistant plate can be applied to the home decoration industry (such as various decoration plates in rooms, office appliances, manufacturing plates of furniture, special cabinet plates with higher sealing requirements and the like); the automobile manufacturing industry (such as the manufacture of cabinets in special vehicles, such as automobile bottom plates, ceiling linings, interior trim of caravans, ambulances and the like); advertising media industry (such as making brochures, making large movable display boards and stage backgrounds, making product models and props, etc.); the environment with higher humidity and higher requirements on sanitation and water permeability prevention such as public bathrooms and swimming pools, and the partition, decoration and other fields in rooms which are easy to grow bacteria.
Compared with the prior art, the invention has the following beneficial effects:
(1) the high-strength polyvinyl chloride folding-resistant plate is a modified polyvinyl chloride material, and the toughening agent is added in the production formula, so that the folding and bending resistance of the plate in the longitudinal and transverse directions can be greatly improved, and the mechanical properties such as the tensile strength of the plate can be improved, and the change can ensure that the plate can be continuously bent, and has little or no use of nails and glue after being grooved in the longitudinal and transverse directions when in use; the product has less seams, good sealing and more beautiful appearance.
(2) According to the high-strength polyvinyl chloride folding plate, the composite antistatic agent is added in the production formula, so that the plate has the advantages of static resistance, large surface tension, strong adsorption performance of the plate surface to ink, no dust absorption and the like, and the static resistance enables the plate to be safely applied to mining areas, laboratories, vehicles and the like with high requirements on static resistance; the increase of the ink adsorption capacity can enable the plate to be applied to places with higher requirements on advertisement painting, exhibition and portrayal and the like; the method has the advantages of no fading, no fog plate and no color difference; the non-dust-absorption performance enables the plate to be applied to places with higher requirements on sanitation, such as a medicine production workshop, an operating table, a dust-free laboratory and the like.
(3) According to the high-strength polyvinyl chloride folded plate, the wood powder filler after activation treatment is added into the formula of the plate, so that the density of the plate is reduced, and the plate is light in weight, good in rigidity, high in strength and strong in wood texture; the added novel calcium-zinc stabilizer is green, environment-friendly and pollution-free.
(4) The preparation method of the high-strength polyvinyl chloride folded plate is simple and easy to implement and easy to realize.
Detailed Description
The present invention is further described below with reference to examples.
Example 1
The high-strength polyvinyl chloride folding plate described in this embodiment 1 is composed of the following raw materials in parts by mass:
wherein:
the PVC resin powder is a polyvinyl chloride resin having a polymerization degree of 1000.
The processing aid is a compound of acrylate and styrene, and the mass ratio of the acrylate to the styrene is 1: 1; the acrylic ester is a polymer of methyl methacrylate and butyl acrylate; styrenics are polymers of styrene and acrylonitrile.
The toughening agent is a compound of ACM and MBS, and the MBS is methyl methacrylate-butadiene-styrene; ACM is acrylonitrile-chloro-methyl methacrylate; the mass ratio of ACM to MBS is 6: 1.
the filler is activated calcium carbonate with the granularity of 600 meshes.
The wood powder is bamboo powder, the granularity is 100 meshes, and the granularity is uniform.
The stabilizer is a compound of calcium stearate, zinc stearate and hydrotalcite.
The lubricant is a compound of fatty acid pentaerythritol ester and polyethylene wax, and the mass ratio of the fatty acid pentaerythritol ester to the polyethylene wax is 1: 2.
the composite antistatic agent is a composite of ethoxylated fatty alkylamine and a quaternary ammonium salt compound, and the compounding mass ratio of the ethoxylated fatty alkylamine to the quaternary ammonium salt compound is 1: 3; the quaternary ammonium salt compound is tridodecyl methyl ammonium chloride; the ethoxylated fatty alkylamine is Glycerol Monostearate (GMS).
The preparation method of the high-strength polyvinyl chloride folding plate in the embodiment 1 comprises the following steps:
(1) the materials with the formula ratio are automatically blended through a full-automatic blending system, then are added into a high-speed mixer, are heated to 120 ℃, are cooled in a cold mixer, and are put into a storage bin for standby when being cooled to below 50 ℃;
(2) extrusion and shaping: sucking the mixture into a hopper of a double-screw extruder by a vacuum feeding machine, melting and plasticizing the mixture by the extruder, then feeding the mixture into an extrusion die, extruding the mixture through a die opening, and then shaping, trimming, drawing and automatically metering and cutting the mixture by a cooling and shaping device to obtain the high-strength polyvinyl chloride folded plate.
Wherein:
the main machine rotating speed of the double-screw extruder in the step (2) is 16rpm/min, the main machine current is 50-53A, the temperatures of 4 heating zones of the screw cylinder are 182 ℃, 185 ℃ and 187 ℃, and the mold temperature is 187 ℃.
High strength polyvinyl chloride folding resistant panels having a thickness of 6.0mm were prepared by example 1.
Example 2
The high-strength polyvinyl chloride folding plate described in this embodiment 2 is composed of the following raw materials in parts by mass:
wherein:
the PVC resin powder is a polyvinyl chloride resin having a polymerization degree of 1000.
The processing aid is a compound of acrylate and styrene, and the mass ratio of the acrylate to the styrene is 2: 1; the acrylic ester is a polymer of methyl methacrylate and ethyl acrylate; styrenics are polymers of styrene and acrylonitrile.
The toughening agent is a compound of ACM and MBS, and the MBS is methyl methacrylate-butadiene-styrene; ACM is acrylonitrile-chloro-methyl methacrylate; the mass ratio of ACM to MBS is 7: 1.
the filler is heavy calcium carbonate.
The wood powder is fir powder with granularity of 80 meshes and uniform granularity.
The stabilizer is a compound of calcium stearate, zinc stearate and hydrotalcite.
The lubricant is a mixture of high-melting-point paraffin and polyethylene wax; the melting point of the high-melting paraffin wax was 70 ℃.
The composite antistatic agent is a composite of ethoxylated fatty alkylamine and a quaternary ammonium salt compound, and the compounding mass ratio of the ethoxylated fatty alkylamine to the quaternary ammonium salt compound is 1: 4; the quaternary ammonium salt compound is tridodecyl methyl ammonium chloride; the ethoxylated fatty alkylamine is ethoxylated lauryl tyramine.
The preparation method of the high-strength polyvinyl chloride folding plate in the embodiment 2 comprises the following steps:
(1) the materials with the formula ratio are automatically blended through a full-automatic blending system, then are added into a high-speed mixer, are heated to 125 ℃, are cooled in a cold mixer, and are put into a storage bin for standby when being cooled to below 35 ℃;
(2) extrusion and shaping: sucking the mixture into a hopper of a double-screw extruder by a vacuum feeding machine, melting and plasticizing the mixture by the extruder, then feeding the mixture into an extrusion die, extruding the mixture through a die opening, and then shaping, trimming, drawing and automatically metering and cutting the mixture by a cooling and shaping device to obtain the high-strength polyvinyl chloride folded plate.
Wherein:
the rotating speed of the main machine of the double-screw extruder in the step (2) is 20rpm/min, the current of the main machine is 57-60A, the temperatures of 4 heating zones of the screw cylinder are 183 ℃, 187 ℃ and 190 ℃, and the temperature of the die is 200 ℃.
High strength polyvinyl chloride folding resistant panels having a thickness of 5.9mm were prepared by example 2.
Example 3
The high-strength polyvinyl chloride folding plate described in this embodiment 3 is composed of the following raw materials in parts by mass:
wherein:
the PVC resin powder is a polyvinyl chloride resin having a polymerization degree of 1000.
The processing aid is a compound of acrylate and styrene, and the mass ratio of the acrylate to the styrene is 3: 1; the acrylic ester is a polymer of methyl methacrylate and butyl acrylate; styrenics are polymers of styrene and acrylonitrile.
The toughening agent is a compound of ACM and MBS, and the MBS is methyl methacrylate-butadiene-styrene; ACM is acrylonitrile-chloro-methyl methacrylate; the mass ratio of ACM to MBS is 9: 1.
the wood powder is poplar wood powder, the granularity is 100 meshes, and the granularity is uniform.
The stabilizer is a compound of calcium stearate, zinc stearate and hydrotalcite.
The lubricant is a compound of fatty acid pentaerythritol ester and polyethylene wax, and the mass ratio of the fatty acid pentaerythritol ester to the polyethylene wax is 1: 3.
the composite antistatic agent is a composite of ethoxylated fatty alkylamine and a quaternary ammonium salt compound, and the compounding mass ratio of the ethoxylated fatty alkylamine to the quaternary ammonium salt compound is 1: 3; the quaternary ammonium salt compound is tridodecyl methyl ammonium chloride; the ethoxylated fatty alkylamine is ethoxylated lauryl tyramine.
The preparation method of the high-strength polyvinyl chloride folding plate in the embodiment 3 comprises the following steps:
(1) the materials with the formula ratio are automatically blended through a full-automatic blending system, then are added into a high-speed mixer, are heated to 120 ℃, are cooled in a cold mixer, and are put into a storage bin for standby when being cooled to below 50 ℃;
(2) extrusion and shaping: sucking the mixture into a hopper of a double-screw extruder by a vacuum feeding machine, melting and plasticizing the mixture by the extruder, then feeding the mixture into an extrusion die, extruding the mixture through a die opening, and then shaping, trimming, drawing and automatically metering and cutting the mixture by a cooling and shaping device to obtain the high-strength polyvinyl chloride folded plate.
Wherein:
the main machine rotating speed of the double-screw extruder in the step (2) is 25rpm/min, the main machine current is 57-60A, the temperatures of 4 heating zones of the screw cylinder are 185 ℃, 188 ℃ and 190 ℃, and the mold temperature is 200 ℃.
High strength polyvinyl chloride folding resistant panels having a thickness of 6.2mm were prepared by example 3.
Comparative example 1
The polyvinyl chloride folded plate in the comparative example 1 is prepared from the following raw materials in parts by mass:
wherein:
the PVC resin powder is a polyvinyl chloride resin with the polymerization degree of 650-750.
The processing aid is a compound of acrylate and styrene, and the mass ratio of the acrylate to the styrene is 3: 1; the acrylic ester is a polymer of methyl methacrylate and butyl acrylate; styrenics are polymers of styrene and acrylonitrile.
The toughening agent is a compound of ACM and MBS, and the MBS is methyl methacrylate-butadiene-styrene; ACM is acrylonitrile-chloro-methyl methacrylate; the mass ratio of ACM to MBS is 9: 1.
the wood powder is poplar wood powder, the granularity is 100 meshes, and the granularity is uniform.
The stabilizer is a compound of calcium stearate, zinc stearate and hydrotalcite.
The lubricant is a compound of fatty acid pentaerythritol ester and polyethylene wax, and the mass ratio of the fatty acid pentaerythritol ester to the polyethylene wax is 1: 3.
the composite antistatic agent is a composite of ethoxylated fatty alkylamine and a quaternary ammonium salt compound, and the compounding mass ratio of the ethoxylated fatty alkylamine to the quaternary ammonium salt compound is 1: 3; the quaternary ammonium salt compound is tridodecyl methyl ammonium chloride; the ethoxylated fatty alkylamine is ethoxylated lauryl tyramine.
The polyvinyl chloride sheet of comparative example 1 was prepared in the same manner as in example 3, and the thickness of the resulting sheet was 6.0 mm.
Comparative example 2
The polyvinyl chloride folding-resistant plate material in the comparative example 2 is prepared from the following raw materials in parts by mass:
wherein:
the PVC resin powder is a polyvinyl chloride resin having a polymerization degree of 1000.
The processing aid is a compound of acrylate and styrene, and the mass ratio of the acrylate to the styrene is 3: 1; the acrylic ester is a polymer of methyl methacrylate and butyl acrylate; styrenics are polymers of styrene and acrylonitrile.
The toughening agent is CPE.
The wood powder is poplar wood powder, the granularity is 100 meshes, and the granularity is uniform.
The stabilizer is a compound of calcium stearate, zinc stearate and hydrotalcite.
The lubricant is a compound of fatty acid pentaerythritol ester and polyethylene wax, and the mass ratio of the fatty acid pentaerythritol ester to the polyethylene wax is 1: 3.
the composite antistatic agent is a composite of ethoxylated fatty alkylamine and a quaternary ammonium salt compound, and the compounding mass ratio of the ethoxylated fatty alkylamine to the quaternary ammonium salt compound is 1: 3; the quaternary ammonium salt compound is tridodecyl methyl ammonium chloride; the ethoxylated fatty alkylamine is ethoxylated lauryl tyramine.
The polyvinyl chloride sheet of comparative example 2 was prepared in the same manner as in example 3, and the thickness of the resulting sheet was 6.1 mm.
The high strength PVC folding plates prepared in examples 1 to 3 and the plates prepared in comparative examples 1 to 2 and the commercially available PVC rigid plates (6.2mm 1220mm 2440mm) were subjected to performance tests, and the results of the performance tests are shown in table 1.
TABLE 1 PVC folding-resistant sheet Performance test results
Claims (9)
1. A high strength polyvinyl chloride resistant folded plate is characterized in that: the composite material consists of the following raw materials in parts by mass:
2. the high strength polyvinyl chloride resistant flap of claim 1 wherein: the PVC resin powder is polyvinyl chloride resin with the polymerization degree of 900-1100; the processing aid is one or two of acrylate or styrene.
3. The high strength polyvinyl chloride resistant flap of claim 2 wherein: the processing aid is a mixture of acrylate and styrene, and the mass ratio of the acrylate to the styrene is 1: 1-3: 1; the acrylic ester is a polymer of methyl methacrylate and any one of butyl acrylate or ethyl acrylate; styrenics are polymers of styrene and acrylonitrile.
4. The high strength polyvinyl chloride resistant flap of claim 1 wherein: the toughening agent is one or two of ACM or MBS; the filler is one or more of heavy calcium carbonate, light calcium carbonate or activated calcium carbonate; the wood powder is one of pine, bamboo, poplar or fir powder.
5. The high strength polyvinyl chloride resistant flap of claim 1 wherein: the stabilizer is a compound of calcium stearate, zinc stearate and hydrotalcite; the lubricant is one or more of fatty acid ester, high melting point paraffin wax or polyethylene wax.
6. The high strength polyvinyl chloride resistant flap of claim 1 wherein: the composite antistatic agent is a composite of ethoxylated fatty alkylamine and a quaternary ammonium salt compound, and the compounding mass ratio of the ethoxylated fatty alkylamine to the quaternary ammonium salt compound is 1: 1-1: 5.
7. the high strength polyvinyl chloride resistant flap of claim 6 wherein: the quaternary ammonium salt compound is one of tridodecyl methyl ammonium chloride or 4-vinyl pyridine-acrylamide copolymer; the ethoxylated fatty alkylamine is one of ethoxylated lauryl tyramine or glycerol monostearate.
8. A method for preparing a high strength pvc folding board according to claim 1, wherein: the method comprises the following steps:
(1) the materials with the formula ratio are automatically blended through a full-automatic blending system, then are added into a high-speed mixer, are heated to 115-125 ℃, are cooled in a cold mixer, and are placed into a storage bin for standby when being cooled to below 60 ℃;
(2) extrusion and shaping: sucking the mixture into a hopper of a double-screw extruder by a vacuum feeding machine, melting and plasticizing the mixture by the extruder, then feeding the mixture into an extrusion die, extruding the mixture through a die opening, and then shaping, trimming, drawing and automatically metering and cutting the mixture by a cooling and shaping device to obtain the high-strength polyvinyl chloride folded plate.
9. The method of making high strength polyvinyl chloride resistant flaps according to claim 8 wherein: the rotating speed of the main machine of the double-screw extruder in the step (2) is 16-25 rpm/min, the current of the main machine is 50-60A, the temperature of the screw cylinder is 180-190 ℃, and the temperature of the die is 185-200 ℃.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911390614.4A CN111004458A (en) | 2019-12-30 | 2019-12-30 | High-strength polyvinyl chloride folding plate and preparation method thereof |
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| CN201911390614.4A CN111004458A (en) | 2019-12-30 | 2019-12-30 | High-strength polyvinyl chloride folding plate and preparation method thereof |
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| CN111004458A true CN111004458A (en) | 2020-04-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113831664A (en) * | 2021-09-29 | 2021-12-24 | 广东联塑科技实业有限公司 | Large-caliber PVC pipe material and preparation method and application thereof |
-
2019
- 2019-12-30 CN CN201911390614.4A patent/CN111004458A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113831664A (en) * | 2021-09-29 | 2021-12-24 | 广东联塑科技实业有限公司 | Large-caliber PVC pipe material and preparation method and application thereof |
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Address after: 256102 Economic Development Zone, Yiyuan County, Zibo City, Shandong Province (West of Wenhe road and north of Taixue Road) Applicant after: Shandong Botuo New Material Technology Co.,Ltd. Address before: 256102 Economic Development Zone, Yiyuan County, Zibo City, Shandong Province (West of Wenhua Road and north of Taixue Road) Applicant before: Shandong Botuo New Material Technology Co.,Ltd. |
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Application publication date: 20200414 |
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| WW01 | Invention patent application withdrawn after publication |