A method for preparing wood-plastic material from hollyhock straw

A technology of plastic wood material and yellow hollyhock, which is applied in the field of processing and production of plastic wood material from yellow hollyhock straw, can solve the problems of poor environmental protection and processability, low fiber content, weak nail holding force, etc., and achieves high environmental protection and high wood fiber content. , The effect of strong nail grip

Active Publication Date: 2016-01-13
NANJING UNIVERSITY OF TRADITIONAL CHINESE MEDICINE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In the prior art, biomass fibers such as sawdust, wood chips, bamboo chips, rice husks, wheat straw, peanut shells, bagasse, cotton stalks, and cassava residues are used as main raw materials for plastic wood. The plastic wood prepared from this material has a fiber content of Low, low strength, weak nail holding power, and large amount of glue, poor environmental protection and processability

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A method for preparing wood-plastic materials with hollyhock stalks, comprising the following steps:

[0032] (1) firstly take the hollyhock stalk after extracting the medicinal components, after drying, cut and pulverize, pass through an 80-mesh sieve, dry to make the moisture content 3%, and obtain hollyhock powder;

[0033] (2) Add 60 parts of hollyhock powder prepared in step (1), add 30 parts of waste plastics, and use electric auxiliary heating. The temperature of electric auxiliary heating is controlled at 130 ° C. After heating, stir and mix with a high-speed mixer at a speed of 2000 rev / min;

[0034] (3) dehumidification: get the mixed hollyhock powder and waste plastic mixture of step (2) to carry out dehumidification treatment, so that the humidity of the mixture is controlled at 5%;

[0035] (4) Granulation: send the dehumidified mixture in step (3) to twin-screw granulation equipment, and add 1 part of coupling agent maleic anhydride grafted polyolefin, 3 ...

Embodiment 2

[0039] A method for preparing wood-plastic materials with hollyhock stalks, comprising the following steps:

[0040] (1) firstly take the hollyhock stalk after extracting the medicinal components, after drying, cut and pulverize, pass through a 60-mesh sieve, and dry to make the moisture content 3%, to obtain hollyhock powder;

[0041] (2) Add 40 parts of hollyhock powder prepared in step (1) to 25 parts of waste plastics, and use electric auxiliary heating. The temperature of electric auxiliary heating is controlled at 150 ° C. After heating, stir and mix with a high-speed mixer at a speed of 2200 rev / min;

[0042] (3) dehumidification: get the mixed hollyhock powder and waste plastic mixture of step (2) to carry out dehumidification treatment, so that the humidity of the mixture is controlled at 6%;

[0043](4) Granulation: send the mixture dehumidified in step (3) to twin-screw granulation equipment, and add 1 part of coupling agent phenolic resin, 1 part of lubricant poly...

Embodiment 3

[0047] A method for producing wood-plastic materials by processing hollyhock stalks, comprising the following steps:

[0048] (1) First get the hollyhock, after drying, cut and pulverize, pass through an 80-mesh sieve, dry to make the moisture content 3%, and get the hollyhock powder;

[0049] (2) Add 60 parts of hollyhock powder prepared in step (1), add 35 parts of waste plastics, use electric auxiliary heating, the temperature of electric auxiliary heating is controlled at 140 ° C, after heating, stir and mix with a high-speed mixer at a speed of 2000 rev / min;

[0050] (3) dehumidification: get the mixed hollyhock powder and waste plastic mixture of step (2) to carry out dehumidification treatment, so that the humidity of the mixture is controlled at 8%;

[0051] (4) Granulation: send the dehumidified mixture in step (3) to twin-screw granulation equipment, and add 1 part of coupling agent titanate, 3 parts of lubricant stearic acid; antioxidant N-phenyl - 1 part of β-nap...

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PUM

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Abstract

The invention discloses a method of preparing a plastic-wood material by using abelmoschus manihot straws. The method comprises the steps of preparing abelmoschus manihot powder, heating in an electrically auxiliary manner, mixing at a high speed, dehumidifying, pelletizing, extruding, processing and forming. According to the method of preparing the plastic-wood material by using the abelmoschus manihot straws, a process design is reasonable, the operability is strong, a preparation process is preferably selected according to fiber characteristics and physical and chemical properties of the abelmoschus manihot, and the prepared plastic-wood is high in strength, strong in nail-holding power, high in wood fiber content, high in impact resistance, high in environment friendliness, and is an excellent plastic-wood material. Moreover, the materials in the method are traditional Chinese medicine wastes, so that the production cost is low; in the materials, plant fibers are long and high in content, waste resources can be recycled, physical performances such as product impact strength can be improved, the service life is prolonged, and economical benefits and social benefits are important.

Description

technical field [0001] The invention relates to the technical field of production and processing of wood-plastic composite materials, in particular to a method for producing wood-plastic materials by processing hollyhock straw. Background technique [0002] Wood-plastic composite materials have the advantages of both plant fibers and plastics, and have a wide range of applications, covering almost the fields of logs, plastics, plastic steel, aluminum alloys and other similar composite materials. At the same time, they also solve the problems of plastics, traditional Chinese medicine and agricultural waste resource recycling issues. [0003] Its main features are: the use of waste traditional Chinese medicine plant resources hollyhock stalks and waste plastics as raw materials for the production of plastic wood materials, the fiber length of the raw plants is long and the content is high, saving resources and is conducive to environmental protection. [0004] Due to the use ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L97/02C08L1/02C08L101/00B29B9/06
Inventor 陈佩东段金廒严辉
Owner NANJING UNIVERSITY OF TRADITIONAL CHINESE MEDICINE
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