Wood-plastic material with distiller's grain as reinforcing phase, and manufacturing method thereof

A technology of wood-plastic material and reinforcement phase, which is applied in the field of new materials, can solve problems such as the production of wood-plastic materials that have not yet been seen, and achieve the effects of reducing white pollution, solving environmental pollution, and reducing costs

Inactive Publication Date: 2012-10-24
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] At present, the wood-plastic materials produced on the market mainly use wood powder, bamboo powder and some plant str

Method used

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  • Wood-plastic material with distiller's grain as reinforcing phase, and manufacturing method thereof
  • Wood-plastic material with distiller's grain as reinforcing phase, and manufacturing method thereof
  • Wood-plastic material with distiller's grain as reinforcing phase, and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0035] Preparation of wood-plastic samples by injection molding process:

[0036]

[0037] Prepare wood-plastic samples by injection molding process according to the above formula. The specific process is: first obtain masterbatch by twin-screw extruder (temperature 160°C), and then obtain splines by injection molding by injection molding machine (injection pressure 60MPa, speed 60cm3 / s , the holding time is 4s at 40MPa, 4s at 30MPa, 3s at 20MPa, and the cooling time is 25s).

[0038] The wood-plastic board prepared by this process has good appearance and processing performance, and has high mechanical strength after testing, with a tensile strength of 15MPa, a bending strength of 30MPa, and an impact strength of 20KJ / m2.

example 2

[0040] Preparation of wood-plastic samples by compression molding process:

[0041]

[0042] Distiller's grains powder, HDPE, maleic anhydride grafted PE, polyethylene wax, and zinc stearate are fully mixed in proportion, put into a mold, and placed on a flat vulcanizer for molding. The molding process is as follows: image 3 , wherein the hot pressing is 5min, the temperature is 160°C, the pressure is 5MPa, the cold pressing is 10min, and the pressure is 10MPa.

[0043] The obtained wood-plastic product has good appearance and processing performance, and has high mechanical strength after testing, with a tensile strength of 10MPa, a bending strength of 23MPa and an impact strength of 5MPa.

example 3

[0045] Extrude WPC pellets or directly extrude WPC

[0046]

[0047] The modifier is selected from maleic anhydride or its grafted PP, PE, polybutadiene, poly1,4 butadiene, acrylonitrile, methyl methacrylate, styrene, and the distiller's grain powder is mixed with the modifier Heat to about 70°C, stir evenly, and then mix with other materials and extrude through an extruder. The coupling agent is selected from one or more of aluminate, titanate, and silane coupling agents. The auxiliary agent is selected One or more of ultraviolet absorbers, plasticizers, lubricants, heat stabilizers, antifungal agents, antioxidants, foaming agents, colorants, antibacterial agents, and flame retardants.

[0048] According to the performance requirements of the product, the addition amount of each component of the above formula is different. Mix the processed distiller's grains powder with other components evenly, and then extrude the wood-plastic products from the extruder through twin-scre...

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Abstract

The invention provides a wood-plastic material with distiller's grain as a reinforcing phase, and a manufacturing method thereof. According to the invention, the distiller's grain is subjected to pretreatment, wherein the distiller's grain is crushed into powder with a relatively small particle size; the distiller's grain powder, plastic, a modifying agent, a coupling agent, a stabilizing agent, a lubricating agent, an auxiliary material, and other raw materials are mixed according to different proportions; an obtained mixture is subjected to extrusion granulation by using an extruder, such that a wood-plastic particle material is obtained; or the mixture is directly extruded for preparing different products such as wood-plastic sheet materials, wood-plastic section bars, and wood-plastic pipe materials; or other products can be obtained by hot-pressing molding or injection molding. The wood-plastic sheet material, section bars and pipe materials with the distiller's grain base can be applied in large-scale continuous batch productions. The material is advantaged in high yield, low cost, and high cost performance. Distiller's grain and plastic or waste plastic are adopted as the main raw materials of the wood-plastic material, such that the cost of the series of wood-plastic material is substantially lower than various wood-plastic materials in current markets, which are produced by using wood powder or bamboo powder. The mechanical strength of the wood-plastic material provided by the invention is not lower than that of the wood-plastic materials in current markets. The series of wood-plastic material can be widely used. According to the invention, large amounts of distiller's grain and waste plastic are utilized, such that pollution of the distiller's grain and waste plastic to the natural environment can be solved, and resource recycling and reutilizing is realized.

Description

technical field [0001] The invention belongs to the technical field of new materials, in particular to a wood-plastic material with distiller's grains as a reinforcing phase and a manufacturing method thereof. Background technique [0002] As the main raw material of construction and furniture, wood has been widely used in large quantities, but with the gradual reduction of forest resources, wood is becoming more and more scarce. With the enhancement of people's awareness of environmental protection, how to use discarded and waste materials to manufacture materials that replace wood is of great significance. [0003] Wood-Plastic Composites (WPC) for short is made of waste wood, crop straw, etc., which are crushed and made into powder, and then used as raw materials together with plastics, and then various additives are added through hot-compression compounding, melt extrusion or injection molding. A new type of composite material with high performance and high added value ...

Claims

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Application Information

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IPC IPC(8): C08L97/02C08L23/06C08L23/12C08L25/06C08L27/06C08L55/02C08L69/00C08L77/00C08L53/02C08L29/04C08L67/04C08L51/06C08K13/02C08K5/098C08K3/26
Inventor 邓利赵晓青王芳聂开立刘珞谭天伟
Owner BEIJING UNIV OF CHEM TECH
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