LZT/mLZT填充PEW复合材料的制备与性能
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摘要
以硅烷偶联剂KH-550对铅锌矿渣(LZT)进行表面改性,得到改性铅锌矿渣(mLZT),采用注射成型工艺制备聚乙烯废弃物(PEW)/LZT与PEW/mLZT复合材料,通过力学性能实验与冲击断面的宏观/微观结构观察,研究了LZT与MLZT添加量对PEW/LZT与PEW/mLZT复合材料力学性能的影响以及改性处理对2种复合材料宏观形貌与微观结构的影响。结果表明,PEW/LZT复合材料的冲击强度、拉伸强度与PEW/mLZT复合材料的冲击强度、弯曲强度、拉伸强度均随着LZT与MLZT添加量的增加呈先升高后降低的趋势,当LZT与mLZT的添加量为20%时,mLZT与PEW的相容性优于LZT,而且,PEW/mLZT复合材料的增强作用较为明显,除了PEW/LZT复合材料的弯曲强度外,2种复合材料的其余强度均达到最大值,复合材料的力学性能最佳。
Lead-Zinc tailings( LZT) was modified by silane coupling agent KH-550 to obtain modified lead-zinc tailings( mLZT),polyethylene waste( PEW)/LZT and PEW/mLZT composite were prepared by extrusion injection molding process,the influence of adding amount of LZT and mLZT on mechanical properties of PEW/LZT and PEW/mLZT composite,the effect of modification treatment on macromorphology and microstructure of two kinds of composite were investigated by mechanical properties test and observation of macro/micro structure of impact section. The results showed that the impact strength and tensile strength of PEW/LZT composite,the impact strength,bending strength and tensile strength of PEW/mLZT composite all increased first and then decreased with increasing amount of LZT and mLZT,when the adding amount of LZT and mLZT was 20%,mLZT blending compatibility with the PEW was better than the LZT,the PEW/mLZT composite enhanced obviously. In addition to the bending strength of PEW/LZT composite,the remaining strength of the two composite all reached the maximum value,the mechanical properties of composite were the best.
Lead-Zinc tailings( LZT) was modified by silane coupling agent KH-550 to obtain modified lead-zinc tailings( mLZT),polyethylene waste( PEW)/LZT and PEW/mLZT composite were prepared by extrusion injection molding process,the influence of adding amount of LZT and mLZT on mechanical properties of PEW/LZT and PEW/mLZT composite,the effect of modification treatment on macromorphology and microstructure of two kinds of composite were investigated by mechanical properties test and observation of macro/micro structure of impact section. The results showed that the impact strength and tensile strength of PEW/LZT composite,the impact strength,bending strength and tensile strength of PEW/mLZT composite all increased first and then decreased with increasing amount of LZT and mLZT,when the adding amount of LZT and mLZT was 20%,mLZT blending compatibility with the PEW was better than the LZT,the PEW/mLZT composite enhanced obviously. In addition to the bending strength of PEW/LZT composite,the remaining strength of the two composite all reached the maximum value,the mechanical properties of composite were the best.
引文
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[3]郭江平,余朦山,王静.碳纳米球/聚乙烯复合物的制备与表征[J].高分子学报,2014,(5):86-91.
[4]刘晓,张宇,王楠,等.我国铅锌矿资源现状及其发展对策研究[J].中国矿业,2015,24(S1):6-9.
[5]张明超,李景朝,李鹏远,等.国内外铅锌矿资源及分布概述[J].中国矿业,2016,25(s1):41-45.
[6]陆泗进,王业耀,何立环.会泽某铅锌矿周边农田土壤重金属生态风险评价[J].生态环境学报,2014,23(11):1832-1838.
[7]李海英,顾尚义.磷肥对铅锌矿渣污染土壤中重金属的活性影响试验研究[J].地球与环境,2012,40(2):38-40.
[8]叶绿茵,李健生,朱蓉,等.锅炉炉渣、铅锌尾矿渣等废渣的利用[J].四川水泥,2005(1):12-14.
[9]王伟玲,伍玉娇,刘昌贵,等.PE/云母高填充复合材料性能的研究[J].塑料科技,2014,42(7):44-48.
[10]刘生鹏,张苗,胡昊泽,等.聚乙烯改性研究进展[J].武汉工程大学学报,2014,32(3):31-36.
[11]葛正浩,司丹鸽,张双琳.聚乙烯/秸秆粉发泡木塑复合材料的压制成型及性能[J].塑料,2015,44(4):115-118.
[12]李丽丽,张晓虹,王玉龙,等.基于聚乙烯/蒙脱土纳米复合材料微观结构的力学性能模拟[J].物理学报,2016,65(19):207-218.
[13]熊煦,陈晓松,侯文顺,等.废PCB粉增强聚乙烯复合材料的力学性能[J].塑料,2014,43(3):44-47.
[14]汪欢欢,李倩,黄志钱,等.高密度聚乙烯/纳米纤维素纤维复合材料的制备及表征[J].塑料科技,2014,42(5):93-96.
[15]姜洪丽,李斌,张军昌,等.聚乙烯蜡表面改性对木粉/HDPE复合材料性能影响[J].塑料,2012,41(1):21-23.
[16]陈龙,张和平,潘健,等.硫酸钡填充聚乙烯薄膜的制备及性能研究[J].长江大学学报:自然科学版,2014,11(28):16-19.