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Polypropylene-based microcellular foaming wood-plastic composite material and production method thereof

A composite material and microcellular foaming technology, which is applied in the field of wood-plastic composite materials, can solve the problems of large wear of the barrel and screw of the extruder, short service life of the extruder, and limitation of the scope of application of the material, so as to prolong the service life , protect the environment, reduce the effect of material density

Active Publication Date: 2012-06-27
SHANDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This material has a higher density, about 1.3kg / m 3 , the application of the material is limited
This production process has a relatively large wear on the extruder barrel and screw, resulting in a relatively short service life of the extruder

Method used

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  • Polypropylene-based microcellular foaming wood-plastic composite material and production method thereof
  • Polypropylene-based microcellular foaming wood-plastic composite material and production method thereof
  • Polypropylene-based microcellular foaming wood-plastic composite material and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-3

[0024] Embodiment 1-3: formula (unit: weight part)

[0025] Example 1

Example 2

Example 3

Polypropylene

70

70

70

Low-density polyethylene

30

30

30

Nano calcium carbonate

5

5

5

[0026] biomass powder

50

50

50

Compatibilizer

6

6

6

lubricant

2.5

2.5

2.5

[0027] Preparation method: prepare according to the formula of Example 1-3.

[0028] 1) Add biomass powder and nano-calcium carbonate into a high-mixer and mix in a weight ratio of 10:1, the mixing temperature is 105°C-110°C, and the mixing time is 15-20 minutes;

[0029] 2) Add 70 parts of polypropylene, 30 parts of low-density polyethylene, 50 parts of treated biomass powder, 6 parts of compatibilizer, and 0.5, 1.5, and 2.5 parts of lubricant into a high-speed mixer in proportion by weight. The temperature is 105°C-110°C, and the mixing time is 15-20 minutes...

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Abstract

The invention provides a polypropylene-based microcellular foaming wood-plastic composite material and a production method thereof, belonging to the technical field of a wood-plastic composite material. The polypropylene-based microcellular foaming wood-plastic composite material is characterized by being prepared from the following raw materials in parts by weight: 70 parts of polypropylene, 30 parts of low-density polyethylene, 30-70 parts of biomass powder, 3-7 parts of nanometer calcium carbonate, 2-8 parts of compatilizer, 0.5-2.5 parts of foaming agent and 2-8 parts of lubricant. The problem of severe corrosion of a material cylinder and a screw of an extruder can be effectively solved by adjusting the ingredient formula of the property components and the processing agents, so that the service life of the extruder is prolonged. Furthermore, the continuous and uniform microcellular foaming wood-plastic composite material is obtained, the material density is reduced, and the application range of the material is enlarged. Therefore, the biomass powder is widely recycled, the waste material is recycled, and the environment is protected.

Description

technical field [0001] The invention belongs to the technical field of wood-plastic composite materials, and in particular relates to a polypropylene-based wood-plastic microporous foam composite material and a production method thereof. Background technique [0002] Wood-plastic composite material refers to the use of biomass powder (wood powder, agricultural straw powder, etc.) High-pressure extruded, cooled and processed into a reversible and recycled high-quality material. This type of material has the advantages of acid and alkali resistance, low water absorption, not easy to deform, good mechanical properties, and can be recycled. This material has a higher density, about 1.3kg / m 3 , the scope of application of the material is limited. This production process has relatively large wear and tear on the extruder barrel and screw, resulting in a relatively short service life of the extruder. Contents of the invention [0003] In order to solve the problem of wear and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L23/06C08L97/02C08L51/06C08K13/02C08K3/26C08J9/04B29C47/92B29C48/92
CPCB29C48/04B29C48/40B29C48/92B29C2948/92514B29C2948/9259B29C2948/92704B29C2948/92885B29C2948/92895B29C2948/92904
Inventor 蔡红珍柏雪源易维明高巧春高振棠
Owner SHANDONG UNIV OF TECH
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