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Process for preparing composite material of poly-aspartic acid, derivates thereof, chitosan and calcium phosphorous compound

A technology of polyaspartic acid and composite materials, which is applied in the field of composite materials of chitosan and calcium phosphorus compounds to prepare polyaspartic acid or its derivatives, which can solve the problems of poor mechanical strength and achieve improved mechanical strength , Good environmental compatibility, easy chemical modification effect

Inactive Publication Date: 2008-10-22
TIANJIN UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, the developed material has the disadvantage of poor mechanical strength

Method used

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  • Process for preparing composite material of poly-aspartic acid, derivates thereof, chitosan and calcium phosphorous compound
  • Process for preparing composite material of poly-aspartic acid, derivates thereof, chitosan and calcium phosphorous compound

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Abstract

The invention discloses a method for preparing composite material of poly-aspartic acid or a derivative thereof, chitosan and a calcium-phosphate compound. The method is as follows: firstly, the poly-aspartic acid with different side chains or the derivative thereof is synthesized, then the poly-aspartic acid with different side chains or the derivative thereof, the chitosan and calcium-containing solution are mixed, reacted and precipitated under certain temperature and pH value. The obtained product has the characteristic of imitating a cell envelope and is environment-friendly biomimetic material. The material has the function of absorbing heavy metals and certain organic substances, can be used to remove the heavy metals, chlorohydrocarbon, organic pigment, dyes and so on, and is widely used for fields such as medicine industry, food engineering, printing and dyeing industry, sewage treatment and so on.

Description

Method for preparing composite material of polyaspartic acid or its derivative, chitosan and calcium phosphorus compound 【Technical field】 The invention relates to the field of fine chemicals in chemical engineering, in particular to a method for preparing composite materials of polyaspartic acid or its derivatives, chitosan and calcium phosphorus compounds. 【Background technique】 In previous work, we have developed composite materials of polyaspartic acid or its derivatives and chitosan (see ZL200510015063.5 and CN1916052A). However, the developed material has the disadvantage of poor mechanical strength. For this reason, the present invention intends to incorporate inorganic materials therein to prepare composite materials of polyaspartic acid or its derivatives, chitosan and inorganic materials, so as to improve the mechanical strength of the materials. The entire preparation process adopts a clean chemical process without using toxic and harmful solvents, and the obta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L79/08C08L5/08C08K5/07C08K3/22C08K3/24C08K3/28
Inventor 孙波方叶明王博威孙永跃吴新世安钢
Owner TIANJIN UNIVERSITY OF TECHNOLOGY
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