非硫化型氯化聚乙烯（CPE）防水卷材耐热老化性能研究及寿命估算  

Experimental Investigation and Lifetime Estimating on Non-sulfurized Chlorinate Polyethylene Waterproof Roll Material

作　　者：邹本飞[1] 苑会林[1] 杨晋娜[1] 王新星[1] 牛萍[1] 

机构地区：[1]北京化工大学新型高分子材料的制备与加工北京市重点实验室,北京100029

出　　处：《合成材料老化与应用》2011年第2期10-14,32,共6页Synthetic Materials Aging and Application

摘　　要：为了研究阻燃增塑剂氯化石蜡、增强剂炭黑N330、轻质氧化镁对CPE防水卷材热老化性能的影响规律，对老化前后的试样进行拉伸、热重分析（TGA）和红外光谱分析等测试，并运用非等温动态热重分析法对最优配方的防水卷材进行寿命估算。结果表明：增塑剂迁移是CPE防水卷材热老化的主要因素，氯化石蜡的最佳用量是15份；轻质氧化镁在非硫化热塑性橡胶中没有热稳定的作用，反而降低了防水卷材耐热老化性能；炭黑N330具有防热老化的作用；运用动态热重法的Doyle和Zsako’积分法判断其老化反应机理并计算出反应活化能E和频率因子A等动力学参数，进而计算出卷材使用寿命与温度的关系。由实验数据估算，CPE防水卷材的使用寿命在59年左右。This article was to research the thermal aging performance effect of Chlorcosane , Carbon black and Light quality magnesia on the Non-sulfurized chlorinate polyethylene waterproof roll material. Stretcher, TGA and Fourier transformation infrared spectrum were used to test the sample and the lifetime of the best compounding was estimated by thermal gravity analysis （TGA）. The result showed that migration of plasticizer was the major factor of heat deterioration, The optimal ratio of chlorinate polyethylene was 15phr; Light quality MgO did nothing to heat stabilizer performance, and lowered the ageing-resistant performance of chlorinate polyethylene. Carbon black had the aging-resistant performance to some extent. By way of Doyle and Zsako＇ integral method of dynamic TG meth- od, its heat degradation dynamic mechanism was got, and the formula was selected to analyse thermal degradation dynamically , calculate the dynamic parameters such as d and the relation equation between temperature and lifetime egradation activation energy E and frequency factor A, was deduced. Due to the experimental data, its life cycle was estimated to be about 59 years.

关 键 词：氯化聚乙烯 热老化 TGA 寿命估算 

分 类 号：TQ325.12[化学工程—合成树脂塑料工业]