Preparation method of modified straw powder, modified straw powder and biodegradable material

A technology for biodegradable materials and modified straw, which is applied in the field of preparation of modified straw powder, can solve problems such as poor biodegradation performance and poor mechanical strength, and achieve the effects of improving mechanical strength and improving biodegradation performance.
CN101659750AActive Publication Date: 2010-03-03日照新东港农业开发有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
日照新东港农业开发有限公司
Publication Date
2010-03-03
Patent Text Reader

Abstract

The invention provides a preparation method of modified straw powder. The method comprises the following steps of: contacting straw powder and an aqueous solution of a modifier at a temperature between 80 and 100 DEG C for 1 to 4 hours; and reacting a product generated by the contact of the obtained substance and the modifier with allyl chloride at a temperature between 100 and 120 DEG C for 1 to8 hours in the presence of a solvent to obtain the modified straw powder. The modifier is alkali or acid, and the solvent can dissolve the allyl chloride. The invention also provides the modified straw powder, wherein the modified straw powder is prepared by the preparation method. The invention also provides a biodegradable material, which is prepared by melting a mixture containing the straw powder and base resin, wherein the straw powder is the modified straw powder. The biodegradable material adopts the modified straw powder so as to achieve good biodegradability and mechanical strength.
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Description

technical field

[0001] The invention relates to a preparation method of modified straw powder, modified straw powder prepared by the preparation method, and a biodegradable material prepared by using the modified straw powder. Background technique

[0002] Straw is a kind of abundant and inexhaustible renewable natural polymer material. However, at present, straw resources have not been fully utilized, and there is a large surplus of straw resources in major agricultural production areas. The waste of resources and environmental pollution caused by incineration and returning to the field have aroused the attention of the whole society. Rational utilization of straw resources, realization of industrial utilization of straw resources, and environmental protection are directly related to the sustainable development of the national economy.

[0003] On the other hand, with the rapid development of the plastics industry, the demand and output of plastic products are also increas...

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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