Method for preparing poly-aspartic-acid resin

A polyaspartic acid and resin technology, which is applied in the field of preparing polyaspartic acid resin, can solve the problems of inability to balance water absorption performance and gel strength, and achieves good gel strength, large pore size and porosity, and water absorption speed. quick effect
CN1814650AActive Publication Date: 2006-08-09BEIJING UNIV OF CHEM TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING UNIV OF CHEM TECH
Publication Date
2006-08-09

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Abstract

This invention relates to a preparation method for poly-asparagic acid resin, which takes poly-pyrrolidine dione as the raw material to make crosslink poly-pyrrolidine dione with method of non-even phase suspended emulsion crosslink or non-even phase suspension crosslink and processes poly-asparagic acid resin by hydrolyzation characterizing that the crosslink poly-pyrrolidine dione is prepared by multi-section crosslink reaction, in which, the crosslinker is fed in for 2-4 times in equal volume and equal time interval, the crosslink poly-pyrrolidine dione and the resin are aged and crystallized and quickly dried, A ageing and crystallization process for 1-10 days under room temperature, B, quick drying process is carried out under -54-40deg.C.
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Description

technical field

[0001] The invention relates to a method for preparing polyaspartic acid resin by using high-molecular-weight polysuccinimide as a raw material and adopting a heterogeneous suspension crosslinking method or a heterogeneous suspension emulsion crosslinking method. Background technique

[0002] Superabsorbent resin is a lightly cross-linked polymer with strong hydrophilic groups that can absorb water dozens or even thousands of times its own weight. Polyaspartic acid superabsorbent resin is a polymer obtained by cross-linking polyaspartic acid. It not only has good biodegradability and water absorption performance, but also has good biocompatibility. Even if it enters The human body can also be digested and absorbed through the action of enzymes, and it does not show antigenicity in the human body, and its metabolites are non-toxic. Polyaspartic acid superabsorbent resin is a green functional polymer material with excellent performance. In addition to being u...

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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