广东化工
廣東化工
엄동화공
GUANGDONG CHEMICAL INDUSTRY
2012年
15期
94-95
,共2页
纳米二氧化硅%增强%增韧%环氧胶黏剂
納米二氧化硅%增彊%增韌%環氧膠黏劑
납미이양화규%증강%증인%배양효점제
nano-SiO2%reinforcing%toughening%epoxy adhesive
以Stober法制备球形纳米二氧化硅,并用氨丙基三乙氧基硅烷(APTES)对其进行发面修饰。将修饰后的二氧化硅分散到环氧树脂胶黏剂中,进一步测试粘接的冲击和拉伸剪切强度,表征断面形貌。结果表明,修饰后的二氧化硅粒子在环氰树脂胶黏剂中具有较好的分散性,其拉伸剪切强度提高了约31%,剪切冲击强度提高了约66.7%。
以Stober法製備毬形納米二氧化硅,併用氨丙基三乙氧基硅烷(APTES)對其進行髮麵脩飾。將脩飾後的二氧化硅分散到環氧樹脂膠黏劑中,進一步測試粘接的遲擊和拉伸剪切彊度,錶徵斷麵形貌。結果錶明,脩飾後的二氧化硅粒子在環氰樹脂膠黏劑中具有較好的分散性,其拉伸剪切彊度提高瞭約31%,剪切遲擊彊度提高瞭約66.7%。
이Stober법제비구형납미이양화규,병용안병기삼을양기규완(APTES)대기진행발면수식。장수식후적이양화규분산도배양수지효점제중,진일보측시점접적충격화랍신전절강도,표정단면형모。결과표명,수식후적이양화규입자재배청수지효점제중구유교호적분산성,기랍신전절강도제고료약31%,전절충격강도제고료약66.7%。
Spherical nano-SiO2 was synthesized by Stober method, and then functionalized by APTES. Amino-functionalized nano-silica (SiO2-NH2) was dispersed to epoxy adhesive, and the adhesive strength and fracture surface morphology were tested. The result showed that, the well dispersed SiO2-NH2 increased the shear strength and impact strength by 31% and 66.7 % respectively.