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PVC (polyvinyl chloride) foaming plastic material and preparation method thereof

A foaming agent and modified material technology, which is applied in the processing field of polymer materials, can solve the problem that the melt has poor resistance to the escape of foaming gas, it is difficult to obtain uniform and fine foamed plastics, and the density and unit mass are reduced and other problems, to achieve the effect of small water absorption, increase the bending failure load, and promote the nucleation of air bubbles

Inactive Publication Date: 2019-03-15
常州厚德再生资源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, PVC resin-plastic composite materials on the market generally have problems of high density and excessive quality. When making non-load-bearing profiles such as wall panels, excessive density and unit mass will reduce the applicability of the profiles and increase the difficulty of installation.
Although the current PVC foamed resin-plastic composite material can reduce the profile density and quality, it is difficult to obtain a foam with uniform and fine cells due to the poor melt strength of PVC itself and the poor resistance of the melt to the escape of foaming gas. plastic

Method used

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  • PVC (polyvinyl chloride) foaming plastic material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Put 24 parts of wood powder particles into a drying machine with a drying temperature of 75° C. to obtain dried wood powder particles;

[0031] Add 18 parts of polymethacrylate regrind, 5 parts of polystyrene-butadiene copolymer regrind, 14 parts of epoxy resin powder, 2 parts of phenolic resin regrind powder, and 6 parts of silica regrind powder into the high-speed Mix evenly in the kneader, and the temperature of the high-speed kneader is 80°C;

[0032] The dried wood powder particles obtained in step 1, 25 parts of polyvinyl chloride, 1 part of aminosilane, 10100.3 parts of antioxidant, 1 part of PE wax, 0.3 parts of AC azodicarbonamide, and 0.3 parts of zinc stearate 1.5 parts of dyes are added to the ingredients in the high-speed mixer together to obtain uniformly mixed ingredients. The temperature of the high-speed mixer is 75°C;

[0033] The uniformly mixed ingredients are passed into the conical twin-screw extruder for extrusion molding and then cooled by circu...

Embodiment 2

[0035] Put 24 parts of wood powder particles into a drying machine with a drying temperature of 70° C. to obtain dried wood powder particles;

[0036] Add 17 parts of polymethacrylate regrind, 4 parts of polystyrene-butadiene copolymer regrind, 14 parts of epoxy resin powder, 2 parts of phenolic resin regrind powder, and 6 parts of silica regrind powder into the high-speed Mix evenly in the kneader, and the temperature of the high-speed kneader is 70°C;

[0037] The dried wood powder particles obtained in step 1, 24 parts of polyvinyl chloride, 1 part of aminosilane, 0.2 part of 1010 antioxidant, 1 part of PE wax, 0.2 part of AC azodicarbonamide, 0.2 part of zinc stearate 1 part and 1 part of dye are added to the ingredients in the high-speed mixer to obtain uniformly mixed ingredients. The temperature of the high-speed mixer is 70 °C;

[0038] The uniformly mixed ingredients are passed into the conical twin-screw extruder for extrusion molding and then cooled by circulating ...

Embodiment 3

[0040] Put 28 parts of wood powder particles into a drying machine with a drying temperature of 85° C. to obtain dried wood powder particles;

[0041] Add 19 parts of polymethacrylate regrind, 5 parts of polystyrene-butadiene copolymer regrind, 16 parts of epoxy resin powder, 3 parts of phenolic resin regrind powder, and 9 parts of silica regrind powder into the high-speed Mix evenly in the kneader, the temperature of the high-speed kneader is 85°C;

[0042]The dried wood powder particles obtained in step 1, 26 parts of polyvinyl chloride, 2 parts of aminosilane, 0.5 part of 1010 antioxidant, 2 parts of PE wax, 0.5 part of AC azodicarbonamide, 0.5 part of zinc stearate 1 part and 2 parts of dye are added to the ingredients in the high-speed mixer together to obtain uniformly mixed ingredients. The temperature of the high-speed mixer is 85°C;

[0043] The uniformly mixed ingredients are passed into the conical twin-screw extruder for extrusion molding and then cooled by circul...

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Abstract

The invention relates to a PVC (polyvinyl chloride) foaming plastic material which comprises the following ingredients in parts by weight: 24-28 parts of wood flour particle, 24-26 parts of PVC, 16-19parts of filling, 21-24 parts of modification material, 1.2-2.5 parts of lubricant, 0.2-0.5 parts of antioxidant, 1-2 parts of cross-linking agent, 0.2-0.5 parts of foaming agent, 6-9 parts of nucleator and 1-2 parts of dye. The cost of the plastic material is lowered; the toughness of the plastic material is improved; and a bending rupture load and falling ball impact strength of the material are improved.

Description

technical field [0001] The invention relates to the technical field of processing polymer materials, in particular to a PVC foamed plastic material and a preparation method thereof. Background technique [0002] Resin-plastic composite material is a new type of polymer composite material with excellent performance in recent years. It is mainly made of organic resin waste, plastic and fiber materials in a certain proportion to form a processing unit, adding an appropriate amount of processing aids and other functional modifications. It is a profile processed by extrusion, injection, pressing and other molding methods. It combines the dual advantages of wood and plastic, not only has the characteristics of acid and alkali resistance, corrosion resistance, low water absorption, and easy cleaning, but also has greatly improved mechanical properties. At present, PVC resin-plastic composite materials on the market generally have problems of high density and excessive quality. Whe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L97/02C08L25/10C08L33/10C08L61/06C08L63/00C08K13/02C08K3/36C08J9/10
CPCC08J9/0061C08J9/0066C08J9/0095C08J9/103C08J2203/04C08J2327/06C08J2397/02C08J2425/10C08J2427/06C08J2433/10C08J2461/06C08J2463/00C08J2497/02
Inventor 张书豪王怀栋丁江浩刘彬蔡璐张硕朱荣建
Owner 常州厚德再生资源科技有限公司
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