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首页> 外文期刊>Journal of Applied Polymer Science >Application of chlorinated waste rubber as a flame retardant of low density polyethylene
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Application of chlorinated waste rubber as a flame retardant of low density polyethylene

机译：氯化废橡胶作为低密度聚乙烯的阻燃剂的应用

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For the reuse of the abundant waste rubber (WR), chlorinated waste rubber (Cl-WR) was prepared by a water-based chlorination method using chlorine gas as the chlorinating reagent. The resultant Cl-WR was used as a flame retardant of low density polyethylene (LDPE) matrix. The properties of WR and Cl-WR were characterized by thermogravimetric (TG) and Fourier transform infrared (FTIR) spectrometer. The results indicated that the Cl-WR with a 42% chlorine content had a higher char residue than WR. The limiting oxygen index (LOI) value can be increased up to 27.2 and the flame retardancy reached to the maximum (V-0) grade for the LDPE/Cl-WR-Sb blends with mass ratios of Cl-WR/LDPE and Cl-WR/Sb _2O_3 being 80/100 and 1.5/1, respectively. The improvement of the flame retardancy and thermal properties of the LDPE/Cl-WR-Sb blends were attributed to the char formation and synergistic effect between Cl-WR and Sb_2O_3 in a high temperature region, although the mechanical properties of the said blend decreased in comparison with that of the neat LDPE.
机译：为了再利用丰富的废橡胶（WR），使用氯气作为氯化试剂，通过水基氯化法制备了氯化废橡胶（Cl-WR）。所得的Cl-WR用作低密度聚乙烯（LDPE）基体的阻燃剂。用热重（TG）和傅里叶变换红外（FTIR）光谱仪表征了WR和Cl-WR的性质。结果表明，氯含量为42％的Cl-WR的残渣比WR高。对于质量比为Cl-WR / LDPE和Cl-的LDPE / Cl-WR-Sb混合物，极限氧指数（LOI）值可以提高到27.2，并且阻燃性达到最大（V-0）级。 WR / Sb _2O_3分别为80/100和1.5 / 1。 LDPE / Cl-WR-Sb共混物的阻燃性和热性能的改善归因于在高温区域内的炭化和Cl-WR与Sb_2O_3之间的协同作用，尽管该共混物的机械性能在与纯LDPE的比较。

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