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Application of xylose residue in preparation of wood plastic material

A technology of wood-plastic materials and xylose slag, applied in the field of composite materials, can solve the problem of insufficient utilization of xylose slag

Inactive Publication Date: 2018-01-19
NANJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide the application of xylose slag in the preparation of wood-plastic materials, so as to solve the problem that the xylose slag in the prior art cannot be fully utilized

Method used

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  • Application of xylose residue in preparation of wood plastic material
  • Application of xylose residue in preparation of wood plastic material
  • Application of xylose residue in preparation of wood plastic material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0096] Raw materials: 20 parts of dried xylose residue (300 mesh), 50 parts of polyethylene, 25 parts of nanometer calcium carbonate, 0.7 part of calcium stearate, 0.8 part of polyethylene wax, 2 parts of dioctyl phthalate, 8 acrylate copolymer.

[0097] The manufacturing method includes the following processes:

[0098] (1) Mix raw materials. Mixing is divided into two stages: hot mixing and cold mixing. First, heat mixing. According to the proportion, add each raw material to a high-speed mixer and mix at high speed (800rpm) until the temperature reaches 120°C, and then mix at a low speed (200rpm). When the temperature is lower than 90°C, the material is discharged;

[0099] (2) Make raw material granules, put the mixed raw materials into a twin-screw extrusion granulator for granulation;

[0100] (3) Extrude the profile, add the prepared raw material pellets into the single-screw extruder, and a mold with a specific shape is installed at the outlet of the screw mouth. The...

Embodiment 2

[0102] Raw materials: 15 parts of dried xylose residue (80 mesh), 3 parts of enzymatic lignin, 50 parts of polyethylene, 25 parts of glass fiber, 0.5 part of calcium stearate, 0.7 part of liquid paraffin, 5 parts of phthalic acid Dioctyl ester, 6 parts chlorinated polyethylene CPE

[0103] The manufacturing method includes the following processes:

[0104] (1) Mix raw materials. Mixing is divided into two stages: hot mixing and cold mixing. First, heat mixing. According to the proportion, add each raw material to a high-speed mixer and mix at high speed (800rpm) until the temperature reaches 120°C, and then mix at a low speed (200rpm). When the temperature is lower than 90°C, the material is discharged;

[0105] (2) Extrude the profile, add the mixed material into the parallel twin-screw extruder, and a mold with a specific shape is installed at the outlet of the screw mouth. The material is in a molten state under high temperature and high pressure, and enters from the entra...

Embodiment 3

[0107] Raw materials: 55 parts of dried xylose residue (100 mesh), 5 parts of lignosulfonate, 60 parts of polypropylene, 30 parts of asbestos fiber, 2 parts of zinc stearate, 3 parts of polyethylene wax, 10 parts of Malay Anhydride grafted polypropylene, 3 parts chlorinated paraffin, 2 parts ethylene-vinyl acetate copolymer

[0108] The manufacturing method includes the following processes:

[0109] (1) Mix raw materials. Mixing is divided into two stages: hot mixing and cold mixing. First, heat mixing. According to the proportion, add each raw material to a high-speed mixer and mix at high speed (800rpm) until the temperature reaches 120°C, and then mix at a low speed (200rpm). When the temperature is lower than 90°C, the material is discharged;

[0110] (2) Extrude the profile, add the mixed material into the conical twin-screw extruder, and a mold with a specific shape is installed at the outlet of the screw mouth. The material is in a molten state under high temperature a...

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Abstract

The invention discloses application of xylose residue in preparation of a wood plastic material. The wood plastic material includes 5-80 parts of xylose residue, 1-40 parts of lignin, 20-60 parts of thermoplastic, 2-80 parts of mineral powder, and 2-10 parts of an impact modifier. Compared with the prior art, the technical scheme of the invention utilizes xylose residue to prepare the wood plasticmaterial, and does not use wood flour, straw powder or other biomasses, can make full use of industrial xylose to produce waste, is economical, and is more environment-friendly. Moreover, the wood plastic material prepared from xylose residue has more excellent mechanical properties, thermal stability and UV aging resistance far exceeding the national standards, thus meeting the market demands.

Description

technical field [0001] The invention belongs to the field of composite materials, and in particular relates to the application of xylose slag in preparing wood-plastic materials. Background technique [0002] Wood-plastic composite material is a new type of material made of wood fiber or plant fiber as the main component, which is pretreated to compound it with thermoplastic resin or other materials. The amount of discarded sawdust left over from wood processing in my country is more than several million tons every year, and other natural fibers such as rice bran reach tens of millions of tons, and the total amount of waste plastics reaches nearly 100 million tons. WPC effectively utilizes these waste materials and produces huge economic and social benefits. Compared with wood, wood-plastic has good isotropy, weather resistance and dimensional stability. The product is not afraid of moths, no fungus, not easy to absorb water and deform, has good mechanical properties and is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L23/12C08L27/06C08L97/02C08L33/04C08L55/02C08L25/06C08L77/00C08L61/06C08L97/00C08K3/26C08K5/098C08K5/12C08K7/14C08K3/30
Inventor 应汉杰朱晨杰仲凌霞唐成伦陈勇吴菁岚柳东
Owner NANJING UNIV OF TECH
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