Cotton stalk powder/polyvinyl chloride (PVC) crust foaming composite material and formation process thereof

A polyvinyl chloride and skinning foaming technology, applied in the field of preparing the above-mentioned foamed composite materials, can solve the problems of discarding, waste of resources, lack of new modes of comprehensive utilization, etc., and achieve good specific strength, low cost, easy to master and The effect of control

Active Publication Date: 2014-08-13
QINGDAO INST OF BIOENERGY & BIOPROCESS TECH CHINESE ACADEMY OF SCI +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] my country is a major cotton-producing country in the world and has abundant cotton stalk resources. Due to the lack of a new model of comprehensive utilization, cotton stalks, as a by-product of cotton, are mostly discarded in the field or burned, resulting in a large waste of resources.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] The cotton stalk powder / PVC crust foaming composite material has the following components in parts by weight:

[0048] 100 parts of PVC resin powder, 10 parts of cotton stalk powder, 2 parts of lead compound stabilizer, 0.5 parts of AC foaming agent, 6 parts of acrylic foam regulator, 10 parts of modifier, 1 part of lubricant, filler 20 servings.

[0049] Its preparation method comprises the following steps:

[0050] (1) Treat cotton stalk powder with coupling agent: add cotton stalk powder to a high-speed mixer, add coupling agent and stir for 20 minutes at 80-90°C to activate wood powder;

[0051] (2) Add all materials into the mixer in proportion and mix evenly;

[0052] (3) Cooperate the extruder with the mold, cooling and setting device, traction device and cutting device;

[0053] (4) Set the barrel and die head temperature (take the "80" twin-screw extruder as an example), the first zone is 140°C, the second zone is 150°C, the third zone is 155°C, the fourth z...

Embodiment 2

[0055] The cotton stalk powder / PVC crust foaming composite material has the following components in parts by weight:

[0056] 100 parts of PVC resin powder, 20 parts of cotton stalk powder, 4 parts of calcium-zinc composite stabilizer, 0.7 parts of AC foaming agent, 9 parts of acrylic foam regulator, 8 parts of modifier, 1.5 parts of lubricant, filler 16 servings.

[0057] Its preparation method comprises the following steps:

[0058] (1) Treat cotton stalk powder with coupling agent: add cotton stalk powder to a high-speed mixer, add coupling agent at 80-90°C and stir for 20 minutes to activate wood powder;

[0059] (2) Add all materials into the mixer in proportion and mix evenly;

[0060] (3) Cooperate the extruder with the mold, cooling and setting device, traction device and cutting device;

[0061] (4) Set the barrel and die head temperature (take the "80" twin-screw extruder as an example), the first zone is 140°C, the second zone is 150°C, the third zone is 160°C, t...

Embodiment 3

[0063] The components of the cotton stalk powder / PVC crust foaming composite material are the following parts by weight:

[0064]100 parts of PVC resin powder, 30 parts of cotton stalk powder, 6 parts of lead compound stabilizer, 1 part of AC foaming agent, 12 parts of acrylic foam regulator, 4 parts of modifier, 2 parts of lubricant, filler 10 servings.

[0065] Its preparation method comprises the following steps:

[0066] (1) Treat cotton stalk powder with coupling agent: add cotton stalk powder to a high-speed mixer, add coupling agent at 80-90°C and stir for 20 minutes to activate wood powder;

[0067] (2) Add all materials into the mixer in proportion and mix evenly;

[0068] (3) Cooperate the extruder with the mold, cooling and setting device, traction device and cutting device;

[0069] (4) Set the barrel and die head temperature (take "80" twin-screw extruder as an example), 140°C for the first zone, 150°C for the second zone, 165°C for the third zone, 170°C for th...

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Abstract

The invention provides a cotton stalk powder / PVC crust foaming composite material which comprises, by weight, 100 parts of PVC resin powder, 10 to 30 parts of cotton stalk powder, 2 to 6 parts of a composite stabilizing agent, 0.5 part to 1.5 parts of an AC foaming agent, 6 to 12 parts of an acrylic acid ester foaming regulator, 4 to 10 parts of a modifier, 1 part to 2 parts of a lubricant and 10 to 20 parts of a filler. A novel wood plastic foaming material product with a smooth surface and continuous and uniformly distributed foaming micropores is obtained by heating, melting, extruding and foaming the composite material provided in the invention with extrusion molding equipment, and the product has the characteristics of a light weight, high specific strength, resistance to water and mildew, environmental protection, etc., can be processed in a manner of nailing, sawing or planning, is applicable to furniture plates, floors, skirting boards, fences and the like, and is a novel product for substituting woods with plastics.

Description

technical field [0001] The invention relates to a cotton stalk powder / polyvinyl chloride (PVC) crust foaming composite material. [0002] The present invention also relates to a method for preparing the above-mentioned foamed composite material. Background technique [0003] Wood-plastic composite material is a product obtained by blending wood fiber and plastic resin. It can organically combine the advantages of plastic and wood fiber materials. It can be processed by nailing, drilling, planing, etc., and can be extruded and processed like thermoplastics. It fully utilizes the ease of processing of wood and the diversity and flexibility of plastic processing methods. It has a wide range of applications. In recent years, it has been widely used at home and abroad Fast development. The State Council's "Opinions on Accelerating the Promotion of Wood Conservation and Substitution Work" pointed out: Advocate and encourage the production and use of wood substitutes, give priori...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L27/06C08L97/02C08J9/10B29C47/92B29C48/92
CPCB29C47/92
Inventor 刘晓华王庆富马玉久王利生庞浩廖兵
Owner QINGDAO INST OF BIOENERGY & BIOPROCESS TECH CHINESE ACADEMY OF SCI
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