臺灣博碩士論文加值系統

本研究以自製合成的 2,2'-Bis[4-(4-maleimidophenoxy)
phenyl]propane(BPPP)樹脂與 4,4'-Bismaleimidophenylmethane(
Kerimide)樹脂作成克維拉(Kevlar 49)纖維複合材料試片,並比較兩者介
面剪應力(IFSS)及臨界應變能釋率(G1c)之大小.並以氯磺酸溶液及後續多
種試劑(乙二胺,丙烯胺,去離子水)的官能基取代反應,對Kevlar 49纖維進
行表面處理以改善BPPP樹脂與Kevlar49的界面接著及複合材料的機械性
質.合成後的BPPP樹脂以TGA,DSC,FTIR,NMR對其熱性質及分子結構加以分
析.纖維的表面形態,化學組成及官能基以SEM,ESCA,SSIMS加以分析.樹脂
與纖維的界面剪應力(IFSS),層間剪應力(ILSS)及T型剝離力(T-peel
strength)可經由微粒拉出法(microbond pull-out),短樑法(short beam
test)及T型剝離力測試法測得.結果顯示BPPP比Kerimide有較大的界面接
著力及臨界應變能釋率.纖維經過處理與BPPP樹脂間的介面剪應力,層間剪
應力,T型剝離力均有改善(最大約17%至46%),由SEM對微粒拉出法及T型剝
離力試片破壞面的觀察可知,未處理的纖維破壞面相當平滑而纖維經過處
理其破壞面為纖維表面結構及樹脂基材的破裂,顯然界面接著力有所增加.

In this study. we compare the interfacial shear strength (IFSS)
and G1c ofthe BPPP resin/Kevlar 49 fiber with Kerimide resin/
Kevlar 49 fiber. Besides,the surface of Kevlar 49 fibers were
modified by chlorosulfonationand subsequently reacted with some
reagents (ethylenediamine, allylamine or denizoed water) to
improve the adhesion with BPPP resin. The BPPP resin was
identified by TGA, DSC, FTIR or NMR. The change in the fiber
morphology,chemical compositions of the fiber surfaces and the
surface functional groupsintroduced to the surface of the fiber
were identified by SEM, ESCA, SSIMS.Interfacial shear strength
(IFSS), interlaminar shear strength (ILSS), T-peelstrength
between fiber and resin were tested by microbond pull-out test,
shortbeam test or T-peel test. The results show that the BPPP
resin has the higher value of IFSS and G1c than Kerimide. IFSS,
ILSS and T-peel strength increase by a factor of 1.17 to 1.46
after chemical treatment. From SEM observation ofmicrobond and
T-peel fracture surface, it could be found that the improvement
of fiber/matrix interfacial bond strength often accompanied a
change in fracture mode from the interface of fiber/BPPP resin
to the fiber fibrillation and the resins.