阻燃处理对聚乳酸纤维性能的影响  

Effect of flame retardant finishing on properties of polylactic acid fibers

作　　者：李亚滨[1] 寇士军[1] 

机构地区：[1]天津工业大学纺织学院,天津300160

出　　处：《纺织学报》2006年第4期28-30,52,共4页Journal of Textile Research

摘　　要：用HBCD、TBB、TBP-A、TBP-A-2EO、TPP共5种阻燃剂对聚乳酸织物进行阻燃处理。聚乳酸纤维对TPP和TBP-A的吸收率最高,但对TBP-A的吸收率超过4.38%时,聚乳酸纤维的极限氧指数仍保持在25.9%左右,而对TPP的吸收率仅为3.05%时,极限氧指数即可达到27.8%。当TPP的含量提高到12.8%时,极限氧指数反而下降至25.4%。扫描电镜观察和DSC测试表明,此时的纤维表面上出现过量的TPP结晶,拉伸强力下降了70%。结果表明,聚乳酸纤维通过TPP适当的处理,可以实现比较好的阻燃性能。Polylactic acid fiber fabrics were treated respectively with five flame retardants-HBCD,TBB, TBP- A,TBP-A-2EO ,TPP. The absorptivity of TPP and TBP-A were very high. However, the limiting oxygen index （LOI） value of the treated fiber remained at 25.9% when the absorptivity of TBP-A increased over 4.38 %. LOI value reached 27.8 % when the absorptivity of TPP was only 3.05 %. When the amount of absorbed TPP increased to 12.8%, however, the LOI value decreased to 25.4%. The scanning electron micrograph and DSC data show that an excessive amount of TPP crystallization was on the surfaces of polylactide fibers and the tensile strength was cut down by 70%. These results indicate that moderate TPP treatment can impart polylactide fibers high flame retardant property.

关 键 词：极限氧指数 聚乳酸纤维 阻燃处理 拉伸强力 吸收率 

分 类 号：TS102.52[轻工技术与工程—纺织工程]