本文選題：聚丙烯腈　切入點(diǎn)：溶液紡絲　出處：《東華大學(xué)學(xué)報(bào)(自然科學(xué)版)》2017年03期

【摘要】：對(duì)購(gòu)買的由不同廠家采用溶液紡絲制得的3種商用聚丙烯腈(PAN)原絲和采用增塑熔融紡絲法自制的PAN纖維的結(jié)構(gòu)與性能進(jìn)行對(duì)比研究.試驗(yàn)結(jié)果表明:增塑熔融紡絲法制備的PAN纖維發(fā)生了環(huán)化、脫氫反應(yīng),放熱峰寬化,放熱焓較低,玻璃化轉(zhuǎn)變溫度較高,纖維的拉伸斷裂強(qiáng)度均高于3種商用PAN原絲,達(dá)到7.38cN/dtex;采用Ruland法和逐次切線法計(jì)算發(fā)現(xiàn),增塑熔紡PAN纖維沿纖維軸方向微孔的半徑和取向偏離度較小,微孔長(zhǎng)度較大.
[Abstract]:The structure and properties of three commercial polyacrylonitrile (pan) polyacrylonitrile (pan) fibers obtained by solution spinning from different manufacturers and PAN fibers prepared by plasticizing melt spinning were compared. The results showed that the plasticized melt spinning was carried out. The PAN fibers prepared by filament method were cyclized. In the dehydrogenation reaction, the exothermic peak is widened, the enthalpy is low, the glass transition temperature is high, the tensile fracture strength of the fiber is higher than that of three commercial PAN precursors, and the tensile strength is 7.38cN / dtex.The results of calculation by Ruland method and successive tangent method show that, The radius and orientation of micropores in plasticized melt spinning PAN fibers are smaller and the length of micropores is larger along the axis of fibers.
【作者單位】： 河南工程學(xué)院材料與化學(xué)工程學(xué)院;東華大學(xué)材料科學(xué)與工程學(xué)院;
【基金】：河南工程學(xué)院功能紡織高分子材料科技創(chuàng)新團(tuán)隊(duì)資助項(xiàng)目(CXTD2013004);河南工程學(xué)院博士基金資助項(xiàng)目(D2014017) 河南省教育廳科學(xué)技術(shù)研究重點(diǎn)資助項(xiàng)目(14B430032)
【分類號(hào)】：TQ342.31
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本文編號(hào)：1679183