Effect of Chitosan Coating on the Properties of Poly(glycolic acid-lactic acid)Thread-Embedding Material  

作　　者：徐晓霞 危惠敏 赵俐 张佩华 

机构地区：[1]Engineering Research Center of Technical Textiles,Ministry of Education,Donghua University,Shanghai 201620,China [2]Shanghai Taiheng Trade Company Limited,Shanghai 200241,China

出　　处：《Journal of Donghua University(English Edition)》2017年第6期722-725,共4页东华大学学报（英文版）

基　　金：Biomedical Textile Materials Science and Technology(111 Project),China(No.B07024)

摘　　要：Poly( glycolic acid-lactic acid)( PGLA) threadembedding material was modified by chitosan coating which could improve the rigidity,hydrophilicity and moisture absorption of the material,and produced better stimulation effect. Thus,this kind of thread-embedding materials which can be buried into acupuncture points to produce a long-time stimulation is popular in the acupuncture and moxibustion therapies. The variation tendencies of diameter,weight, hydrophilicity, and flexibility of the samples under the change of chitosan coating concentration,coating time and coating times were studied respectively. The results showed that the hydrophilicity,weight,and rigidity after coating rose in a certain range with the increase of coating time,coating times and coating concentration. The coating time had little influence on the diameter of fiber.Poly （ glycolic acid-lactic acid ） （ PGLA ） thread- embedding material was modified by chitosan coating which could improve the rigidity, hydrophilicity and moisture absorption of the material, and produced better stimulation effect. Thus, this kind of thread-embedding materials which can be buried into acupuncture points to produce a long-time stimulation is popular in the acupuncture and moxibustion therapies. The variation tendencies of diameter, weight, hydrophilicity, and flexibility of the samples under the change of chitosan coating concentration, coating time and coating times were studied respectively. The results showed that the hydrophificity, weight, and rigidity after coating rose in a certain range with the increase of coating lime, coating times and coating concentration. The coating time had little influence on the diameter of fiber.

关 键 词：poly(glycolic acid-latic acid)(PGLA) thread-embedding chitosan coating HYDROPHILICITY FLEXIBILITY RIGIDITY 

分 类 号：N0[自然科学总论—科学技术哲学]