本文選題：玻璃纖維　切入點：淀粉納米晶　出處：《工程塑料應用》2017年06期

【摘要】：采用自制的淀粉納米晶(SNC)對玻璃纖維進行表面處理,增加其與環(huán)氧樹脂基體的界面剪切強度(IFSS)。研究了處理方式、處理時間、SNC乙醇分散液濃度、熱處理溫度等工藝參數(shù)對SNC在玻璃纖維表面沉積情況的影響,以及對改性玻璃纖維與環(huán)氧樹脂的界面性能的影響規(guī)律。采用掃描電子顯微鏡、單纖維強力儀對處理前后玻璃纖維進行表征,并采用微脫粘法測試玻璃纖維與環(huán)氧樹脂的界面粘結情況。結果表明,當重力靜置處理時間24 h,SNC乙醇分散液濃度為1 g/100 m L時,SNC在玻璃纖維表面均勻沉積,且能顯著提高玻璃纖維與環(huán)氧樹脂的IFSS,為27.29 MPa,較未處理的纖維增加29.3%。150℃熱處理4 h后,X射線光電子能譜結果顯示SNC與玻璃纖維形成化學鍵合,進一步增加纖維與環(huán)氧樹脂的界面粘結,IFSS值達到32.30 MPa,較未處理的纖維增加53%,且纖維的拉伸強度得到較好的維持。
[Abstract]:The surface of glass fiber was treated with starch nanocrystalline (SNC), and the interfacial shear strength of glass fiber with epoxy resin matrix was increased.The effects of treatment method, treatment time and concentration of ethanol dispersion, heat treatment temperature on the deposition of SNC on glass fiber surface and the interfacial properties of modified glass fiber and epoxy resin were studied.The glassfiber was characterized by scanning electron microscope (SEM) and single fiber strength tester. The interfacial bond between glass fiber and epoxy resin was measured by microdesorption method.The results show that when the concentration of SNC ethanol dispersion is 1 g / 100 mL, the SNC is uniformly deposited on the surface of glass fiber.The IFSS of glass fiber and epoxy resin was increased significantly by 27.29 MPA, which was 29.3kW higher than that of untreated fiber after heat treatment at .150 鈩，

本文編號：1692008