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Production method of 5 type PVC (poly vinyl chloride) resin foamed wood plastic composite

A technology of PVC resin and foamed wood, which is applied in the production field of 5-type PVC resin foamed wood-plastic materials, can solve the problems of poor product performance stability, difficult process, easy aging, etc., to simplify the production process, increase the degradation temperature, prevent The effect of material carbonization

Inactive Publication Date: 2013-08-21
JIUJIANG SALT LAKE NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Most of the existing resin foamed wood-plastic materials are foamed by Type 7 or Type 8 PVC resin and wood powder. The foamed wood-plastic materials produced by Type 7 or Type 8 PVC resin powder have high cost and poor product performance. Poor stability, easy to aging
Compared with type 5 PVC resin powder, the price is low, and the anti-aging and stability are good. However, because of the difficulty in foaming and extrusion molding, there are few wood-plastic materials that are completely foamed with type 5 PVC resin.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] Weigh 100 parts of type 5 PVC resin, 40 parts of wood fiber, 4 parts of stabilizer, 0.2 parts of foaming agent, 4 parts of foam regulator, 2 parts of modifier, 0.2 parts of lubricant, and light calcium carbonate according to the proportioning ratio. 10 servings.

[0010] The preparation method of the present invention is (1) raw material mixing: first add 50 parts of Type 5 PVC resin, then add 10 parts of light calcium carbonate, and add other auxiliary materials (stabilizer, foaming agent, foam regulator, Modifier, lubricant), and then add another 50 parts of 5-type PVC resin and 10 parts of light calcium carbonate, and mix the mixture with a 800 / 2500 mixer; (2) extrusion molding: mix the The uniform material is fed into the 65-type twin-screw wood-plastic extrusion extrusion molding, and the working conditions are: the screw speed is set to 8 rpm, the feeding speed is set to 4 rpm, and the traction speed is set to 1 m / min; The outlet temperature conditions are: the t...

Embodiment 2

[0012] Weigh 100 parts of type 5 PVC resin, 85 parts of wood fiber, 5 parts of stabilizer, 1 part of foaming agent, 5 parts of foam regulator, 3 parts of modifier, 0.3 parts of lubricant, light calcium carbonate 10 servings.

[0013] The preparation method of the present invention is (1) raw material mixing: first add 50 parts of Type 5 PVC resin, then add 10 parts of light calcium carbonate, and add other auxiliary materials (stabilizer, foaming agent, foam regulator, Modifier, lubricant), and then add another 50 parts of 5-type PVC resin and 10 parts of light calcium carbonate, and mix the mixture with a 800 / 2500 mixer; (2) extrusion molding: mix the The uniform material is fed into the 65-type twin-screw wood-plastic extrusion extrusion molding, and the working conditions are: the screw speed is set to 9 rpm, the feeding speed is set to 6 rpm, and the traction speed is set to 2 m / min; The outlet temperature conditions are: the temperature of each area of ​​the barrel is 16...

Embodiment 3

[0015] Weigh 100 parts of type 5 PVC resin, 60 parts of wood fiber, 4 parts of stabilizer, 1 part of foaming agent, 4 parts of foaming regulator, 2 parts of modifier, 0.2 parts of lubricant and 10 parts of light calcium carbonate according to the proportioning ratio. share.

[0016] The preparation method of the present invention is (1) raw material mixing: first add 50 parts of Type 5 PVC resin, then add 10 parts of light calcium carbonate, and add other auxiliary materials (stabilizer, foaming agent, foam regulator, Modifier, lubricant), and then add another 50 parts of 5-type PVC resin and 10 parts of light calcium carbonate, and mix the mixture with a 800 / 2500 mixer; (2) extrusion molding: mix the The uniform material is fed into the 65-type twin-screw wood-plastic extrusion extrusion molding, and the working conditions are: the screw speed is set to 9 rpm, the feeding speed is set to 6 rpm, and the traction speed is set to 2 m / min; The outlet temperature conditions are: ...

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Abstract

The invention relates to a production method of a 5 type PVC (poly vinyl chloride) resin foamed wood plastic composite. The comprises the following raw materials in parts by weight: 100 parts of 5 type PVC resin, 40-85 parts of wood fibers, 4-5 parts of a stabilizer, 0.2-1 part of a foaming agent, 4-5 parts of a foaming regulating agent, 2-3 parts of a modifier, 0.2-0.3 part of a lubricating agent and 20 parts of light calcium carbonate. The preparation method comprises the following steps of: (1) mixing the raw materials, namely stirring and mixing the raw materials by adopting a 800 / 2500 type mixer; and (2) carrying out extrusion moulding, namely feeding the uniformly mixed material in the step (1) into a 65 type double-screw wood plastic moulding machine to be extruded and moulded. The production method has the advantages that the raw material ratio is reasonable, a dustfree compound stabilizer is added to increase a plastic degradation temperature and prevent materials from carbonization in a production process, extrusion moulding can be carried out by adopting a one-step method of the double-screw extruder, and foaming ratio, surface hardness and glossiness of the 5 type PVC resin foamed wood plastic composite product are consistent with those of SG-7 and SG-8 type PVC products.

Description

[0001] The invention relates to a production method of a resin foamed wood-plastic material, in particular to a production method of a type 5 PVC resin foamed wood-plastic material. Background technique [0002] Most of the existing resin foamed wood-plastic materials are foamed by Type 7 or Type 8 PVC resin and wood powder. The foamed wood-plastic materials produced by Type 7 or Type 8 PVC resin powder have high cost and poor product performance. Poor stability, easy aging. Compared with type 5 PVC resin powder, the price is low, and the anti-aging and stability are good. However, because of the difficulty in the foaming and extrusion molding process, there are few wood-plastic materials that are completely foamed with type 5 PVC resin. Contents of the invention [0003] The purpose of the present invention is to provide a kind of production method of type 5 PVC resin foamed wood-plastic material, the type 5 PVC resin foamed wood-plastic material produced by the method is g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L97/02C08L23/28C08L29/04C08K13/02C08K3/26C08K3/22C08K5/101C08J9/10B29C44/50
Inventor 钱晓阳
Owner JIUJIANG SALT LAKE NEW MATERIALS CO LTD
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