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Thermochemical compatibilization of reclaimed tire rubber/ poly(ethylene-co-vinyl acetate) blend using electron beam irradiation and amine-based chemical
Journal of Polymer Research ( IF 2.8 ) Pub Date : 2021-09-20 , DOI: 10.1007/s10965-021-02748-y
Suganti Ramarad 1 , Chantara Thevy Ratnam 2 , Yamuna Munusamy 3 , Mathialagan Muniyadi 3 , Nor Azura Abdul Rahim 4
Affiliation  

Waste tire rubber is commonly recycled by blending with other polymers. However, the mechanical properties of these blends were poor due to lack of adhesion between the matrix and the waste tire rubber. In this research, the use of electron beam irradiation and (3-Aminopropyl)triethoxy silane (APTES) on enhancing the performance of 50 wt% reclaimed tire rubber (RTR) blend with 50 wt% poly(ethylene-co-vinyl acetate) (EVA) was investigated. Preparation of RTR/EVA blends were carried out in the internal mixer. The blends were then exposed to electron beam (EB) irradiation at doses ranging from 50 to 200 kGy. APTES loading was varied between 1 to 10 wt%. The processing, morphological, mechanical, and calorimetric properties of the blends were investigated. The stabilization torque and total mixing energy was higher in compatibilized blends. Mechanical properties of RTR/EVA blends were improved due to efficiency of APTES in further reclaiming the RTR and compatibilizing the blends. APTES improved the dispersion of embedded smaller RTR particles in EVA matrix and crosslinking efficiency of the blends. Calorimetric studies showed increased crystallinity in compatibilized blends which corresponds to improved mechanical properties. However, the ductility of the blend was decreased due to increased interaction between EVA and APTES. Presence of APTES increased the efficiency of electron beam irradiation induced crosslinking which was shown through gel content analysis and Charlesby-Pinner equation.



中文翻译:

使用电子束辐照和胺基化学品对再生轮胎橡胶/聚(乙烯-共-醋酸乙烯酯)共混物进行热化学增容

废轮胎橡胶通常通过与其他聚合物混合来回收。然而,这些共混物的机械性能由于基体和废轮胎橡胶之间缺乏粘附力而较差。在本研究中,使用电子束辐照和(3-氨基丙基)三乙氧基硅烷(APTES)提高 50 wt% 再生轮胎橡胶(RTR)与 50 wt% 聚(乙烯-共-醋酸乙烯酯)共混物的性能( EVA) 进行了研究。RTR/EVA 共混物的制备在密炼机中进行。然后将混合物暴露于剂量范围为 50 至 200 kGy 的电子束 (EB) 辐射。APTES 加载量在 1 至 10 重量%之间变化。研究了共混物的加工、形态、机械和量热特性。增容混合物的稳定扭矩和总混合能量更高。由于 APTES 在进一步回收 RTR 和增容共混物方面的效率,RTR/EVA 共混物的机械性能得到改善。APTES 改善了嵌入的较小 RTR 颗粒在 EVA 基质中的分散性和共混物的交联效率。量热研究表明增容混合物的结晶度增加,这对应于机械性能的改善。然而,由于 EVA 和 APTES 之间的相互作用增加,共混物的延展性降低。APTES 的存在提高了电子束辐照诱导交联的效率,这通过凝胶含量分析和 Charlesby-Pinner 方程得到了证明。APTES 改善了嵌入的较小 RTR 颗粒在 EVA 基体中的分散性和共混物的交联效率。量热研究表明增容混合物的结晶度增加,这对应于机械性能的改善。然而,由于 EVA 和 APTES 之间的相互作用增加,共混物的延展性降低。APTES 的存在提高了电子束辐照诱导交联的效率,这通过凝胶含量分析和 Charlesby-Pinner 方程得到了证明。APTES 改善了嵌入的较小 RTR 颗粒在 EVA 基体中的分散性和共混物的交联效率。量热研究表明增容混合物的结晶度增加,这对应于机械性能的改善。然而,由于 EVA 和 APTES 之间的相互作用增加,共混物的延展性降低。APTES 的存在提高了电子束辐照诱导交联的效率,这通过凝胶含量分析和 Charlesby-Pinner 方程得到了证明。

更新日期:2021-09-20
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