PVC (polyvinyl chloride) mixture for PVC foam wood-plastic production

A polyvinyl chloride and mixed material technology, applied in the field of wood-plastic materials, can solve the problems of high rejection rate, inaccurate weighing of ingredients, low yield of finished products, etc., and achieves high bending strength and modulus, good waterproof performance, and porosity. low effect

Inactive Publication Date: 2017-05-10
武汉立尔飞贸易有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the processing of wood-plastic composite materials, surface treatment agents, additives, foaming agents, etc. need to be added to improve the performance of the product, but there are still many problems in the production and processing process, such as unstable production quality, low yield, High scrap rate, low surface finish, low hardness, material elastic modulus, nail holding force, etc. are not up to the requirements, a large part of which is due to unreasonable formula, improper selection of raw materials, and inaccurate weighing of ingredients and mixing process defects also have some influence

Method used

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  • PVC (polyvinyl chloride) mixture for PVC foam wood-plastic production
  • PVC (polyvinyl chloride) mixture for PVC foam wood-plastic production

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] The PVC compound used in the production of polyvinyl chloride foamed wood plastics in the present invention consists of the following raw materials in parts by weight: PVC: 60 parts; light calcium carbonate: 20 parts; wood powder: 12 parts; stabilizer: 2 parts ; Lead sulfate tribasic: 1.5 parts; Foam regulator: 3.8 parts; AC foaming agent: 0.2 parts; NC foaming agent: 0.4 parts; Internal lubricant 60: 0.3 parts; PE wax: 0.3 parts; 175: 1.2 parts; ACR-401: 2.4 parts; CPE-135A: 2.8 parts, the wood powder is camphor wood powder.

[0014] Crush camphor wood to 80 meshes, dry to obtain wood powder, mix PVC, wood powder, light calcium carbonate, stabilizer, tribasic lead sulfate, foam regulator, AC foaming agent, NC foaming agent, internal Lubricant 60, PE wax, ACR-175, ACR-401, and CPE-135A are put into the mixing mixer for stirring, and the heating device is used to heat the material for 15 minutes while stirring the material at 1250 rpm, so that the temperature of the mate...

Embodiment 2

[0016] The PVC compound that is used for polyvinyl chloride foamed wood-plastic production among the present invention is made up of the raw material of following weight part: is made up of the raw material of following weight part: PVC: 55 parts; Light calcium carbonate: 18 parts; Wood powder: 14 parts; Stabilizer: 1.8 parts; Tribasic lead sulfate: 1.2 parts; Foam regulator: 3.6 parts; AC foaming agent: 0.15 parts; NC foaming agent: 0.4 parts; Internal lubricant 60: 0.3 parts; PE wax: 0.3 parts; ACR-175: 1.2 parts; ACR-401: 2.2 parts; CPE-135A: 2.5 parts, and the wood powder is bamboo powder.

[0017] Bamboo is crushed to 80 mesh, dried to obtain wood powder, PVC, wood powder, light calcium carbonate, stabilizer, tribasic lead sulfate, foam regulator, AC foaming agent, NC foaming agent, internal lubrication Put agent 60, PE wax, ACR-175, ACR-401, CPE-135A into the stirring mixer for stirring, and use a heating device to heat the material for 15 minutes while stirring the mate...

Embodiment 3

[0019] The PVC compound used in the production of polyvinyl chloride foamed wood plastics in the present invention consists of the following raw materials in parts by weight: PVC: 55 parts; light calcium carbonate: 16 parts; wood flour: 12 parts; stabilizer: 1.5 parts ; Lead sulfate tribasic: 1 part; Foam regulator: 3.5 parts; AC foaming agent: 0.2 parts; NC foaming agent: 0.2 parts; Internal lubricant 60: 0.3 parts; PE wax: 0.3 parts; 175: 1 part; ACR-401: 2.5 parts; CPE-135A: 2.5 parts. The wood powder is mixed with straw powder, bamboo powder and bitter bark powder in a mass ratio of 3:2:1.

[0020] Grind 6 parts of straw, 4 parts of bamboo and 2 parts of bitter bark to 80 meshes respectively, mix them evenly after drying to obtain wood powder, mix PVC, wood powder, light calcium carbonate, stabilizer, tribasic lead sulfate, foam Regulator, AC foaming agent, NC foaming agent, internal lubricant 60, PE wax, ACR-175, ACR-401, CPE-135A are put into the mixing mixer for stirrin...

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Abstract

The invention relates to a PVC (polyvinyl chloride) mixture for PVC foam wood-plastic production. The PVC mixture is prepared from raw materials in parts by weight as follows: 50-60 parts of PVC, 15-20 parts of light calcium carbonate, 10-18 parts of wood flour, 1-2 parts of a stabilizer, 1-1.5 parts of tribasic lead sulfate, 3.5-4.5 parts of a foaming regulator, 0.1-0.5 parts of an AC foaming agent, 0.2-0.8 parts of an NC foaming agent, 0.2-0.6 parts of an internal lubricating agent, 0.3-0.5 parts of PE wax, 1-1.5 parts of an ACR-175, 2-3 parts of ACR-401 and 2-3 parts of CPE-135A. A production method comprises steps as follows: the raw materials are subjected to hot mixing at 120-140 DEG C and cold mixing at 30-50 DEG C, and a final finished product is obtained. A plate made of the PVC mixture has the advantages of being high in hardness and strength, water-proof, damp-proof, antibacterial, insect-removing and the like.

Description

technical field [0001] The invention relates to the technical field of wood-plastic materials, in particular to a PVC compound used for polyvinyl chloride foamed wood-plastic production. Background technique [0002] Wood-plastic material is a new type of composite material made by mixing plant fiber powder such as wood with plastic. It has the same compression and bending resistance as hard wood, and its hardness, waterproof, moisture-proof and corrosion resistance are far away. Higher than ordinary hard wood, because it saves limited wood resources and has good performance, it has been greatly developed at home and abroad in recent years. [0003] In the processing of wood-plastic composite materials, surface treatment agents, additives, foaming agents, etc. need to be added to improve the performance of the product, but there are still many problems in the production and processing process, such as unstable production quality, low yield, High scrap rate, low surface fini...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L97/02C08L23/06C08L33/04C08L23/28C08K13/02C08K3/26C08K3/30C08J9/10
Inventor 胡年安
Owner 武汉立尔飞贸易有限公司
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