Preparation method of degradable artificial leather based on forestry and agricultural residues

A technology of agricultural and forestry waste and artificial leather, which is applied in the field of preparation of degradable artificial leather based on agricultural and forestry waste, can solve the problems of inability to achieve high biodegradation rate and poor tear resistance, and achieve abundant yield and high strength. Effect

Active Publication Date: 2020-07-28
广东海纳新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the artificial leather can only be partially degraded, and the artificial leather is produced by a pure chemical synthesis method without using a degradable substrate as a foil, which has poor tear resistance and cannot achieve a high biodegradation rate.

Method used

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  • Preparation method of degradable artificial leather based on forestry and agricultural residues
  • Preparation method of degradable artificial leather based on forestry and agricultural residues
  • Preparation method of degradable artificial leather based on forestry and agricultural residues

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A method for preparing degradable artificial leather based on agricultural and forestry waste, specifically comprising the following steps:

[0038] S1, the production of fiber raw materials:

[0039] S11. Select agricultural and forestry waste crop straw and wood, in parts by mass: 70 parts of crop straw, 30 parts of wood, mix well and place in a cooking pot, add sodium dithionite solution with a mass concentration of 1% as a cooking aid to cook;

[0040] S12. After the cooked mixed slurry is screened by a screening machine, it is transported to a beating machine for beating treatment, and the beating degree of the slurry is controlled to be 30±2°SR;

[0041] S13, placing the beaten slurry in an oven to dry to obtain a natural color slurry for later use;

[0042] S2. Production of synthetic leather substrate:

[0043] S21. Place the uncolored slurry in a rough opener for rough opening, and then place it in a fine opener for fine opening, so that the uncolored slurry...

Embodiment 2

[0049] A method for preparing degradable artificial leather based on agricultural and forestry wastes, the steps of which are basically the same as in Example 1, except that the bio-based resin impregnation solution in step S2 is obtained by the following method: in parts by mass, acrylic resin 80 parts, 2 parts of thickener polyethylene glycol, 1 part of activator fatty alcohol polyoxyethylene ether, 1 part of softening agent pentaerythritol fatty acid ester, all the other technical characteristics are identical with embodiment 1.

Embodiment 3

[0051]A method for preparing degradable artificial leather based on agricultural and forestry wastes, the steps of which are basically the same as in Example 1, except that the bio-based resin impregnation solution in step S2 is obtained by the following method: in parts by mass, acrylic resin 100 parts, 4 parts of thickener polyethylene glycol, 3 parts of activator fatty alcohol polyoxyethylene ether, 2 parts of softening agent pentaerythritol fatty acid esters, all the other technical characteristics are identical with embodiment 1.

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Abstract

The invention provides a preparation method of degradable artificial leather based on forestry and agricultural residues. The preparation method specifically comprises the steps of fiber raw materialmanufacturing, synthetic leather base material manufacturing, synthetic leather manufacturing, synthetic leather following processing and the like. The artificial leather manufactured through the method has the advantages of high strength and tearing resistance, no much difference is generated between the performance of the artificial leather and the performance of real leather or artificial leather in the market, the biodegradation rate can reach 95% or above, the artificial leather can be used as raw materials again after recovery treatment, and the artificial leather has the advantages of being degradable, recyclable and the like; and the problems that artificial leather cannot achieve green, degradation, regeneration and other environment protection aims, and traditional real leather or artificial leather is low in recovery rate and cannot be degraded are solved.

Description

technical field [0001] The invention relates to a method for preparing artificial leather, in particular to a method for preparing degradable artificial leather based on agricultural and forestry waste. Background technique [0002] In the early days, the materials used to make leather were all taken from animal skins. These animal leather products have good physical properties, such as elasticity, abrasion resistance and air permeability. However, the resources of animal skins are scarce at present, and it is difficult to produce them on a large scale. , are expensive and cannot be generally owned by the general consumer public. In order to alleviate this situation, artificial leather was born as an alternative material. The production cost of artificial leather is low, the product is generous and beautiful, and has a high degree of simulation. It has been favored by the public since its birth. [0003] However, with the improvement of people's living standards, the degree...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06N3/04D06N3/00D04H1/425D04H1/492D01C1/02
CPCD06N3/042D06N3/0061D06N3/0077D06N3/0011D04H1/425D04H1/492D01C1/02D06N2211/28D06N2209/103D06N2209/1614D06N2201/042D06N2201/047
Inventor 王习文史梦晴
Owner 广东海纳新材料科技有限公司
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