Radiation grafting long-chain branch polylactic acid and preparation method thereof
Patent Information
- Authority / Receiving Office
- CN · China
- Current Assignee / Owner
- BEIJING RADIATION APPL RES CENT
- Publication Date
- 2015-03-25
- Estimated Expiration
- Not applicable · inactive patent
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Abstract
Description
Technical field
[0001] The invention relates to the fields of biodegradable polymer materials and radiation processing, in particular to a radiation-grafted long-chain branched polylactic acid and a preparation method thereof. Background technique
[0002] Polylactic acid (PLA), referred to as PLA, is a new generation of fully degradable polymer materials developed rapidly in the 1990s. It is made of L-lactic acid, a product of microbial fermentation, and polymerized by chemical synthesis. It is a kind of thermoplastic aliphatic resin. Polylactic acid has excellent biocompatibility and absorbability, non-toxic, non-irritating, it can be completely decomposed in a short period of time under the action of microorganisms, water, acid, alkali, etc. in nature, and the final product is CO 2 and H 2 O, no pollution to the environment, can be used as an environmentally friendly material to replace traditional polymer materials, and has received extensive attention and in-depth res...