Synchrotron radiation microdiffraction of natural silkworm silk and regenerated silk fibroin fibers，ICAFPM 2011先进纤维与聚合物材料国际学术会议（2011.8.15~17，上海）-中国聚合物网,论文下载

Synchrotron radiation microdiffraction of natural silkworm silk and regenerated silk fibroin fibers

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关键词：

micro-focus X-ray post-treatment silk fibroin RSF fibers

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1450K

所属学科：

分子表征

来源：

ICAFPM 2011先进纤维与聚合物材料国际学术会议（2011.8.15~17，上海）

简介：

Inordertoinvestigatethemicrostructureofnaturalsilkwormsilksandregeneratedsilkfibroin(RSF)fibers,synchrotronradiationX-raymicrodiffractiontechnologywasappliedduetolimitedsampleamount.TheRSFfiberswerefirstlydry-spunfromRSFaqueoussolutionandthenpost-treatedatdifferentconditions.Theas-spunRSFfiberexhibitedstrongdiffractionof[201]latticeplaneandweakdiffractionof[020]/[200]latticeplanes,whilethepost-treatedRSFfibersshowedweakdiffractionof[201]latticeplaneandstrongdiffractionof[020]/[200]latticeplanes.However,thenaturalsilkpresentedtwomainpeaksof[201]and[020]/[200]latticeplanes.BothdiffractionswereattributedtosilkIIstructureofsilkfibroin.Bydeconvolutingtheone-dimensionalwide-angleX-raymicrodiffractionpattern,thecrystallinityandthedegreeofcrystallineorientationwereobtained.Theas-spunfibershowedlowdegreesofcrystallinityandcrystallineorientation,butthemicrostructureoftheRSFfibercouldbeimprovedgreatlyandevenbecomesimilartothatofthedegummednaturalsilkbypost-treatment.Theeffectsofpost-treatmentmethodonthemicrostructuresoftheRSFfiberswerealsostudiedtoobtainoptimalpost-treatmentconditions.

作者：

SUN Mengjie, ZHANG Yaopeng, XI Li, SHAO Huili, HU Xuechao

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2011-10-14 13:54:22

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