Starch-based composite and preparation method thereof

A composite material, starch-based technology, applied in the field of starch, can solve the problems that the material properties are difficult to stabilize, cannot solve the problems of strong hydrophilicity and water resistance, and achieves the effects of low cost, easy industrial production and good resilience.
CN104893009AActive Publication Date: 2015-09-09JIANGNAN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
JIANGNAN UNIV
Publication Date
2015-09-09

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Abstract

The invention discloses starch-based composite and a preparation method thereof. The composite is formed by, by weight, 100 parts of modified starch and 10-100 parts of polyester through melt blending. The structural formula of the modified starch is showed in the description and claims, wherein St refers to starch molecules and R group is alkyl group (CnH2n+1). Esterified starch comprises, by weight, 100 parts of natural starch, 0-200 parts of solvent, 10-50 parts of catalyst and 1-50 parts of modifier. The preparation method includes melt blending the components according to the weight to obtain the starch-based composite. The preparation method is high in efficiency, low in cost, simple in process, controllable in performance, and suitable for preparing thermoplastic materials with various performance requirements.
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Description

technical field

[0001] The invention relates to the technical field of starch, and more specifically, relates to a starch-based composite material and a preparation method. Background technique

[0002] China is a large grain country. Every year, excluding food consumption and industrial grain, there are still hundreds of thousands of tons of grain accumulated. According to the national food hygiene standards, grain stored for more than one year is old grain, and grain for more than three years is old grain. These grains can neither be eaten by humans nor can be used as feed, thus causing a lot of waste. At the same time, some crops such as cassava and kudzu root are usually used in low-value and high-pollution industrial production such as papermaking and mortar due to their low nutritional value. As a natural polymer, starch is renewable, degradable, cheap, easy to store and easy to transport. If the starch in old grains and low-nutrition and low-value crops can be used i...

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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