本文選題：剪切增稠液 + 防護(hù)材料��； 參考：《大連理工大學(xué)》2015年碩士論文

【摘要】：傳統(tǒng)的防護(hù)材料具有質(zhì)量重,體積大,不靈活,只能防護(hù)胸腹等人體主要部位的缺點(diǎn),越來越不符合當(dāng)代戰(zhàn)爭的需求。因此急需一種新型的,具有質(zhì)輕柔軟以及良好的防護(hù)性能的柔性防護(hù)材料。針對(duì)這種需求,本課題分別制備了剪切增稠液(STF)—碳纖維復(fù)合材料。其中,分別對(duì)分散相粒子納米SiO2進(jìn)行了粒徑、透射電鏡、紅外以及XRD測(cè)試,分析其粒徑的大小、形狀、粒徑分布、官能團(tuán)以及物相等情況；采用機(jī)械攪拌法和超聲分散法制備STF,通過AR2000ex型流變儀測(cè)試STF的流變性能,并分析其影響因素；采用靜態(tài)浸漬法制備STF-碳纖維復(fù)合材料,分別對(duì)其進(jìn)行防護(hù)性能測(cè)試,通過掃描電鏡觀察測(cè)試前后纖維織物的微觀形貌。測(cè)試結(jié)果表明：(1)納米SiO為非晶態(tài),粒徑約為50nm,表面含有大量的羥基,單分散性很差,團(tuán)聚現(xiàn)象嚴(yán)重；(2)制備的STF具有良好的流變性能,且SiO2質(zhì)量分?jǐn)?shù)、分散介質(zhì)以及溫度對(duì)流變性能均有影響；(3)STF-碳纖維復(fù)合材料的防刺性能要優(yōu)于純碳纖維織布,10層復(fù)合材料的防護(hù)性能與16層純纖維織物相當(dāng),且前者的質(zhì)量與柔韌性要遠(yuǎn)好于后者,纖維之間的摩擦力在防刺過程中起著主要作用。
[Abstract]:Traditional protective materials have the disadvantages of heavy weight, large volume, inflexibility, and can only protect the main parts of human body, such as chest and abdomen, which are more and more incompatible with the needs of contemporary war. Therefore, a new flexible protective material with light weight and good protection performance is urgently needed. In order to meet this demand, the shear thickening liquid STF-carbon fiber composites were prepared. The particle size, shape, particle size distribution, functional groups and the equality of the particles were measured by TEM, IR and XRD. STF was prepared by mechanical stirring and ultrasonic dispersion. The rheological properties of STF were tested by AR2000ex rheometer, and the influencing factors were analyzed. The microstructure of fiber fabric before and after testing was observed by scanning electron microscope (SEM). The results show that the nano-SiO is amorphous, the particle size is about 50 nm, the surface contains a large number of hydroxyl groups, the monodispersity is very poor, the agglomeration phenomenon is serious, the STF has good rheological properties and Sio 2 mass fraction. The effect of dispersing medium and temperature on rheological property is better than that of pure carbon fiber woven 10 layer composite and 16 layers of pure fiber fabric. The quality and flexibility of the former are much better than that of the latter, and the friction between fibers plays a major role in the process of anti-prickle.
【學(xué)位授予單位】：大連理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TB332

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本文編號(hào)：2019733