本文選題：紅麻　切入點：芳香族磷酸酯　出處：《南京理工大學(xué)》2015年碩士論文

【摘要】：本文對紅麻纖維進(jìn)行表面改性,并將其和芳香族磷酸酯類阻燃劑與聚乳酸(PLA)熔融共混,制備了三個阻燃增強(qiáng)體系,分別為PLA/改性紅麻/PX-220、PLA/改性紅麻/PX-220/FB88#、RDP/ZnO/紅麻三元自組裝體系復(fù)合阻燃增強(qiáng)聚乳酸材料。在PLA/改性紅麻/PX-220體系中,采用改性紅麻纖維作為增強(qiáng)材料,通過比較不同添加量改性紅麻纖維的復(fù)合材料的拉伸強(qiáng)度確定了改性紅麻纖維的最佳添加量為10wt%,增強(qiáng)效果顯著；而后選用PX-220作為單一阻燃劑阻燃紅麻增強(qiáng)聚乳酸復(fù)合材料,發(fā)現(xiàn)PX-220顯著提高了復(fù)合材料的耐熱性能和阻燃性能。在PLA/改性紅麻/PX-220/FB88#體系中,改性紅麻纖維仍為主要的增強(qiáng)材料,且恒定改性紅麻添加量為最優(yōu)添加量,將PX-220和FB88#復(fù)配阻燃紅麻增強(qiáng)聚乳酸復(fù)合材料,結(jié)果表明：PX-220和FB88#的復(fù)配使用提高了復(fù)合材料的耐熱性能；FB88#的添加使得復(fù)合材料的拉伸強(qiáng)度得到提高；PX-220/FB88#阻燃體系能夠有效抗熔滴,成炭顯著。RDP/ZnO/紅麻纖維三元自組裝體系是先用二水合乙酸鋅對紅麻纖維進(jìn)行改性,使其表面包覆一層ZnO顆粒,再用制備的ZnO包覆的紅麻纖維原位吸附RDP而得,將這種三元自組裝體系與聚乳酸先后經(jīng)過溶液共混、熔融共混制備聚乳酸復(fù)合材料。研究發(fā)現(xiàn)：隨著紅麻纖維的添加量的增加,復(fù)合材料的力學(xué)性能直線上升；RDP不僅改善了紅麻與聚乳酸基體的相容性,同時顯著提高了復(fù)合材料的阻燃性能；ZnO催化了復(fù)合材料燃燒成炭,且在RDP和紅麻之間起到了“橋梁”作用。
[Abstract]:In this paper, three flame retardant reinforcement systems were prepared by surface modification of kenaf fiber and melt blending with aromatic phosphate flame retardant and polylactic acid (PLA).The composites of PLA/ modified kenaf / PX-220 / modified kenaf / PX-220 / FB88 #RDP / ZnO / kenaf ternary self-assembly system were flame-retarded and reinforced polylactic acid materials.In the PLA/ modified kenaf / PX-220 system, the modified kenaf fiber was used as the reinforcing material. By comparing the tensile strength of the composites with different amount of modified kenaf fiber, the optimum addition amount of the modified kenaf fiber was determined to be 10 wts. the strengthening effect was remarkable.Then PX-220 was selected as a single flame retardant kenaf reinforced polylactic acid composite. It was found that PX-220 significantly improved the heat resistance and flame retardancy of the composites.In the system of PLA/ modified kenaf / PX-220 / FB88#, modified kenaf fiber is still the main reinforcing material, and constant modified kenaf content is the optimum addition amount. PX-220 and FB88# are mixed with flame retardant kenaf to reinforce polylactic acid composite.The results show that the addition of FB88# can improve the tensile strength of FB88# composites, and the FB88# / PX-220 / FB88# flame retardant system can effectively resist the melt drop.The ternary self-assembly system of carbon. RDP / ZnO / kenaf fiber was prepared by modifying the kenaf fiber with zinc acetate dihydrate and coating it with a layer of ZnO particles, and then using the prepared ZnO coated kenaf fiber to adsorb RDP in situ.The ternary self-assembly system and polylactic acid (PLA) were successively blended in solution to prepare polylactic acid composites.It was found that the mechanical properties of the composites increased linearly with the increase of the content of kenaf fiber. RDP not only improved the compatibility of kenaf and polylactic acid matrix,At the same time, the flame retardancy of the composites was significantly improved. ZnO catalyzes the combustion of the composites to form carbon, and acts as a "bridge" between RDP and kenaf.
【學(xué)位授予單位】：南京理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TB332

【參考文獻(xiàn)】

相關(guān)期刊論文 前6條

1 張俊華;李錦文;李傳校;齊風(fēng)杰;張清輝;魏化震;;連續(xù)玄武巖纖維平紋布增強(qiáng)硼酚醛樹脂復(fù)合材料研究[J];工程塑料應(yīng)用;2008年12期

2 周旋;武永剛;李娟;許亮;薛立新;;聚乳酸阻燃改性研究進(jìn)展[J];工程塑料應(yīng)用;2012年08期

3 杜明;劉野;徐鑫;;淺析阻燃劑的研究及發(fā)展現(xiàn)狀[J];黑龍江科學(xué);2012年01期

4 李凱夫,戴東花,謝雪甜,李曉增,彭萬喜;偶聯(lián)劑對木塑復(fù)合材料界面相容性的影響[J];林產(chǎn)工業(yè);2005年03期

5 宣善勇;張向南;胡源;宋磊;;生物可降解聚乳酸材料阻燃研究進(jìn)展[J];塑料科技;2011年05期

6 古曲;付永勝;汪則靈;彭俊林;;無鹵阻燃劑對聚乳酸火災(zāi)危險性的影響[J];消防科學(xué)與技術(shù);2010年04期

，

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