Sand-barrier manufactured by biodegradable material

A biodegradable material and sand barrier technology, applied in the field of sand barriers, can solve the problems of degradation of sand barriers, decreased sand moving performance, poor aging resistance of natural fibers, etc. small effect

Inactive Publication Date: 2012-12-26
TORAY FIBER RES INST(CHINA) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The aging resistance of natural fibers is not good, often after 3 years, the sand barrier will deteriorate, the sand in the sand barrier will be exposed to the sand barrier, and the performance of blocking wind and sand movement will decline
[0004] For example, a sand barrier made of biodegradable PLA fiber fabric is disclosed in the patent CN 101614005B. The moisture regain of the PLA fiber of the sand barrier material is very low, and it cannot effectively absorb water in a dry desert and cannot effectively reduce the moisture content. Provide water for the growth of plants in the sand barrier

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Sand-barrier manufactured by biodegradable material
  • Sand-barrier manufactured by biodegradable material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The polylactic acid fiber with a moisture regain of 0.4% and the modal fiber with a moisture regain of 12% are woven into a knitted fabric by a circular knitting machine, and a cylindrical sand barrier is made with the above knitted fabric, and the polylactic acid fiber in the sand barrier is The weight percentage is 65%, and the weight percentage of the modal fiber is 35%. The distance between the gaps of the above-mentioned knitted fabrics is 0.1mm, and they are placed in the Jilantai Desert in Inner Mongolia, and the damage state of the sand barrier and the growth state of the plants in the sand barrier are observed after 3 years, see Table 1.

Embodiment 2

[0024] The polylactic acid fiber with a moisture regain of 0.4% and the soybean fiber with a moisture regain of 9% are woven into a knitted fabric by a circular knitting machine, and a cylindrical sand barrier is made with the above knitted fabric. The weight of the polylactic acid fiber in this sand barrier is The percentage is 78%, and the weight percentage of soybean fiber is 22%. The distance between the gaps of the above knitted fabrics is 0.28 mm, placed in the Jilantai Desert in Inner Mongolia, and the damage state of the sand barrier and the growth state of the plants in the sand barrier were observed after 3 years, see Table 1.

Embodiment 3

[0026] Polylactic acid fiber with a moisture regain of 0.4%, soybean fiber with a moisture regain of 9% and modal fiber with a moisture regain of 12% are woven into knitted fabrics with a circular knitting machine, and a cylindrical sand barrier is made with the above knitted fabrics. The weight percentage of polylactic acid fiber in the sand barrier is 70%, the weight percentage of soybean fiber is 12%, and the weight percentage of modal fiber is 18%. The distance between the gaps of the above knitted fabrics is 0.21 mm, placed in the Jilantai Desert in Inner Mongolia, and the damage state of the sand barrier and the growth state of the plants in the sand barrier were observed after 3 years, see Table 1.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention discloses a sand-barrier manufactured by a biodegradable material. The biodegradable material is a fabric mixed by at least one of a polylactic acid fiber and a regenerated protein fiber, a regenerated cellulose fiber or a natural fiber. The sand-barrier manufactured by the biodegradable material has the characteristics of high moisture regain, little environment pollution and long time in wind preventing and sand stabilizing.

Description

technical field [0001] The invention relates to a sand barrier, in particular to a sand barrier made of biodegradable materials. Background technique [0002] The formation of sandstorm is closely related to geographical location and climatic conditions. Once sandstorm is formed, it will cause great harm to industry, agriculture, nature, environment, and ecology. How to control sandstorms and reduce or prevent the negative impact of sandstorms on human beings is a major issue that experts in various fields are very concerned about today. In order to prevent the impact of wind and sand on human beings, sand barriers are widely used now. The traditional sand barriers are mainly sand willow sand barriers and wheat straw sand barriers, but the degradation resistance of salix sand barriers and wheat straw sand barriers is not good. Often after 3 years, the salix sand barriers and wheat straw sand barriers will rot and cannot stand up. To the performance of blocking the movement...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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IPC IPC(8): E02D3/00D04B1/14D04B21/00
Inventor 庄建国
Owner TORAY FIBER RES INST(CHINA) CO LTD
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