A kind of wood-plastic composite material and preparation method thereof

A wood-plastic composite material and plastic powder technology, applied in the field of wood-plastic composite materials, can solve the problems of poor fluidity of waste PVC plastics, difficulty in adding straw fibers and red mud, and low amount of waste addition, achieving good durability, Provides designability and the effect of improving impact resistance

Active Publication Date: 2017-12-29
UNIV OF JINAN +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the difficulty of using three wastes to prepare wood-plastic composites is: waste PVC plastics have poor fluidity, it is difficult to add a high proportion of straw fibers and red mud to thermoplastic resins, and it is difficult for straw fibers to form a good interface with thermoplastic resins , seriously affect the performance of the material
For example, the patent of Chinese Patent Publication No. CN1872915A discloses a profile synthesized from plant fiber waste straw, which mixes waste straw powder with plastics and additives, extrudes and cools the shape, and the prepared plate has low strength and low water resistance.
The patent of Chinese Patent Publication No. CN104251055A discloses a preparation method of a new type of red mud wood-plastic formwork. The formwork prepared by this method has low strength and low waste addition

Method used

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  • A kind of wood-plastic composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Example 1: Weigh the raw materials according to the following weight fractions:

[0042] 50 parts of PVC resin powder; 20 parts of straw powder; 50 parts of waste PVC plastic powder; 60 parts of red mud; 5 parts of nano calcium carbonate; 3 parts of stabilizers; 3 parts of acrylic processing modifier ACR; 0.5 parts of stearic acid ; 0.5 part of polyethylene wax; 1 part of impact modifier MBS;

[0043] The particle size of the straw powder ranges from 80 to 120 mesh; the stabilizer can be a dust-free composite lead salt stabilizer and / or a dust-free rare earth composite stabilizer; the impact modifier MBS is a methyl methacrylate Graft copolymer of ester, butadiene and styrene.

[0044] It is produced according to the following method: the water content of nano calcium carbonate is not higher than 5% when used;

[0045] (1) The straw powder has a particle size of 80-120 mesh, and the red mud has a particle size range of 400-800 mesh;

[0046] (2) Mix various raw materials and kn...

Embodiment 2

[0049] Example 2: Weigh each raw material according to the following weight fraction:

[0050] 50 parts of PVC resin powder; 30 parts of straw powder; 50 parts of waste PVC plastic powder; 40 parts of red mud; 7 parts of nano calcium carbonate; 5 parts of stabilizers; 5 parts of acrylic ester processing modifier ACR; 1 part of stearic acid ; 1 part of polyethylene wax; 5 parts of impact modifier MBS;

[0051] The particle size of the straw powder ranges from 80 to 120 mesh; the stabilizer can be a dust-free composite lead salt stabilizer and / or a dust-free rare earth composite stabilizer; the impact modifier MBS is a methyl methacrylate Graft copolymer of ester, butadiene and styrene.

[0052] It is produced according to the following method: the water content of nano calcium carbonate is not higher than 5% when used;

[0053] (1) The straw powder has a particle size of 80-120 mesh, and the red mud has a particle size range of 400-800 mesh;

[0054] (2) Mix various raw materials and k...

Embodiment 3

[0057] Example 3: Weigh each raw material according to the following weight fraction:

[0058] PVC resin powder 50 parts; straw powder 60 parts; waste PVC plastic powder 50 parts; red mud 20 parts; nano calcium carbonate 8 parts; stabilizer 7 parts; acrylic ester processing modifier ACR 8 parts; stearic acid 1.5 parts ; 1.5 parts of polyethylene wax; 9 parts of impact modifier MBS;

[0059] The particle size of the straw powder ranges from 80 to 120 mesh; the stabilizer can be a dust-free composite lead salt stabilizer and / or a dust-free rare earth composite stabilizer; the impact modifier MBS is a methyl methacrylate Graft copolymer of ester, butadiene and styrene.

[0060] It is produced according to the following method: the water content of nano calcium carbonate is not higher than 5% when used;

[0061] (1) The straw powder has a particle size of 80-120 mesh, and the red mud has a particle size range of 400-800 mesh;

[0062] (2) Mix various raw materials and knead them in a Z-kn...

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Abstract

The invention discloses a wood-plastic composite material and a preparation method thereof. The invention adopts three kinds of wastes of crop straw, waste PVC plastic and red mud, adds active nanometer calcium carbonate, and prepares wood-plastic composite material with pure PVC resin and other processing aids. The wood-plastic composite material prepared by the present invention comprehensively utilizes three kinds of wastes, the straw fiber has the effect of strengthening and toughening, the wood-plastic composite material filled with red mud has high durability and service life, and the wood-plastic composite material prepared by the present invention The material has high strength, high durability, and good water resistance.

Description

Technical field [0001] The invention relates to the field of wood-plastic composite materials, in particular to a wood-plastic composite template using waste resources and a preparation method thereof. Background technique [0002] Crop stalks are agricultural and forestry waste produced by agricultural production in rural areas. The country produces tens of billions of tons of crop straw every year, and the pollution caused by "straw burning" has become a pollution problem that plagues the national atmospheric environment. It is particularly important to find a new way of comprehensive utilization for the treatment of crop straw. [0003] PVC materials have non-flammability, high strength, weather resistance and excellent geometric stability, and are widely used in transportation, building materials, automobiles and other industries. With the wide application of PVC plastics, the treatment of waste PVC plastics has attracted increasing attention. Traditional burial and incinera...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L27/06C08L97/02C08L23/06C08L51/04C08K13/08C08K11/00C08K3/26C08K5/09
Inventor 陈娟葛曷一赵悦英滕朝阳杨明
Owner UNIV OF JINAN
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