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

資料類型：

PDF文件

關(guān)鍵詞：

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

資料大小：

1450K

所屬學(xué)科：

分子表征

來源：

ICAFPM 2011先進(jìn)纖維與聚合物材料國際學(xué)術(shù)會(huì)議（2011.8.15~17，上海）

簡介：

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

上傳時(shí)間：

2011-10-14 13:54:22

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