有机-无机杂化阻燃剂阻燃聚乳酸材料研究
关键词 聚乳酸 阻燃 杂化 苯基次磷酸 氢氧化铝
毕业论文设计说明书外文摘要
Title The synthesis of an inorganic-organic hybrid flame retardant and its application in polylactic acid
Abstract
Polylactic acid (PLA) is an environmentally friendly polymer which have received an increasing amount of attention. Unfortunately, due to the characteristics of its molecular structure, the fire resistance of PLA is poor, so it is important and urgent to develop effective flame retardant systems for PLA. An inorganic-organic hybrid flame retardant (BPA-ATH) was synthesized, it was used to prepare a series of flame-retardant PLA composites. Its chemical structure and performance were confirmed by FT-IR, TEM, XRD and Contact Angle. The results suggested that BPA was grafted onto ATH successfully, therefore resulting in higher thermostability than ATH, and BPA-ATH showed the morphology of long rod and smooth surface. The composites were investigated by UL-94, LOI, TG and so on; with the addition of 40wt% BPA-ATH, the LOI of composites was improved to 25% and reached UL-94 V-0 rating, what's more. the hybrid flame retardant can promote the formation of carbonaceous residues.
Keywords polylactic acid flame retardant hybrid phenylphosphinate Aluminum hydroxide
目次
1 引言 1
1.1 有机无机杂化阻燃剂简介 1
1.1.1 烷基次磷酸盐 1
1.1.2 表面改性ATH后的杂化阻燃剂 1
1.1.3 有机无机杂化含硅阻燃剂 2
1.1.4 基于石墨类的杂化膨胀阻燃剂 2
1.2 杂化阻燃剂在高分子材料中的应用 2
1.2.1 烷基次磷酸盐的应用 2
1.2.2 改性ATH的应用 3
1.2.3 有机无机杂化含硅阻燃剂的应用 3
1.2.4 基于石墨烯杂化阻燃剂的应用 4
1.3 聚乳酸材料简介 4
1.4 聚乳酸的阻燃研究 4
1.4.1 含磷、氮类阻燃剂 4
1.4.2 膨胀型阻燃剂 5
1.4.3 纳米粒子阻燃剂 5
1.5 本文的研究思路和研究内容 5
2 实验部分 6
2.1 实验原料 6
2.2 实验设备 6
2.3 有机-无机纳米杂化阻燃剂的合成 6
2.4 聚乳酸复合材料的制备 7
2.5 表征方法与测试手段 7
3 结果与讨论 9
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