摘要
在聚对苯二甲酸乙二醇酯（PET）的酯化过程中添加含磷共聚型阻燃剂2-羧乙基苯基次膦酸（CEP-PA）（其中磷质量分数相对PET为0.6％）和硼酸锌（ZB）（相对PET质量分数为0.05％ ～0.2％）分别作为主阻燃剂和助阻燃剂制备复合阻燃PET,研究了阻燃PET的热性能、燃烧性能和燃烧前后的成炭形貌.结果表明：与纯PET比较,单独添加质量分数为0.05％ ～0.2％的ZB时制备的阻燃PET,其热性能变化不明显,极限氧指数（LOI）提高到27％,残炭量提高,抑烟效果比较明显,抗熔滴性能得到改善;在PET中共同添加ZB和CEPPA所制得的复合阻燃PET的热降解残炭率最高为14.4％,LOI进一步提高到29％,燃烧残炭表面致密,综合阻燃性能更好.
A composite flame-retardant polyethylene terephthalate （PET） was prepared by adding a phosphorus flame retard- ant, 2-carboxyethyl （phenyl）phosphinic acid （CEPPA） with 0.6% phosphorus based on PET by mass fraction as a dominant flame retardant and zinc borate （ZB） at the mass fraction of 0.05% -0.20% based on PET as an auxiliary flame retardant. The thermal property, combustion performance and char morphology of the composite flame-retardant PET were studied. The results showed that as compared with pure PET, the obtained flame-retardant PET containing 0.05% -0.20% ZB by mass fraction had the thermal property with no obvious change, limiting oxygen index （LOI） up to 27% and higher residual char yield, greater smoke suppression effect and better anti-dripping property; and the obtained composite flame-retardant PET simultaneously added with ZB and CEPPA had the maximum residual char yield up to 14.4%, LOI up to 29%, compact char surface and better com- prehensive flame retardance.
出处
《合成纤维工业》
CAS
2016年第3期21-25,共5页
China Synthetic Fiber Industry
基金
北京市教委提升计划-科技成果转化与产业化项目(14330)
关键词
聚对苯二甲酸乙二醇酯
2-羧乙基苯基次膦酸
硼酸锌
共聚
抗熔滴
阻燃性能
polyethylene terephthalate
2-carboxyethyl （phenyl） phosphinic acid
zinc borate
copolymerization
anti-drip- ping
flame retardance
