摘要
以氧化镁、氢氧化铝、碳酸钠为原料,一步合成镁铝水滑石,并对合成产物进行TG-DTA、XRD表征。将制得的水滑石用于PVC中,采用转矩流变法、烘箱老化法评价PVC热稳定性能,系统考察了水滑石晶化温度、时间等因素对PVC热稳定性能的影响,结果表明:水滑石晶化温度对PVC热稳定性能影响较大,随着晶化温度的升高,水滑石自身稳定性逐渐下降,其对PVC的热稳定性能随之下降。
Using magnesium oxide, aluminum hydroxide, sodium carbonate as raw material, the MgAI-CO3,LDHs was prepared by one step method, and characterized by TG-DTA and X-ray diffraction. Then the MgAI-CO3,LDHs was used to PVC, thermal stability of the modified PVC were studied by torque rheometer and static hot oven aging, influences like crystallization temperatures, crystallization time on the thermal stability of PVC were investigated. It suggested that the crystallization temperature of hydrotalcite has great influence on the thermal stability of PVC, with the increase of crystallization temperature, the stability of the hydrotalcite gradually decreases, and the thermal stability of PVC decreases.
作者
沈冠华
梁育振
张伟雄
张月杏
廖晓龙
郝向英
Shen Guanhua, , Llang Yuzhen, Zhang Weixiong, Zhang yuexing, Liao Xiaolong, Hao Xiangying,(1. College of Chemistry and Environmental Science, Inner Mongolia Normal University, Hohhot 010022， 2. College of Environmental and Chemical Engineering, ZhaoQing University, Zhaoqing 526061, Chin)
出处
《广东化工》
CAS
2018年第5期39-41,34,共4页
Guangdong Chemical Industry
基金
肇庆学院2015年度创新强校项目“水滑石基环保型PVC热稳定剂的制备及应用研究”(CQ2014047)
2018年度广东大学生科技创新培育专项资金(pdjhb0537)
广东省大学生创新创业计划项目(201710580065)
关键词
水滑石
PVC
热稳定性
合成
Hydrotalcite
PVC. Thermal stability
Synthesis
