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摘要
采用木质纤维素/蒙脱土(LNC/MMT)部分替代炭黑-白炭黑双相填料(CSDPF)作为天然橡胶(NR)补强剂制备LNC/MMT/CSDPF/NR复合材料,探讨了LNC/MMT与CSDPF配比对复合材料性能的影响。结果表明:随着LNC/MMT比例的增加,复合材料的拉伸强度和撕裂强度均呈现先上升后下降的趋势,断裂伸长率逐渐上升,硬度略微下降。当LNC/MMT与CSDPF质量比为10∶30时,复合材料的综合力学性能最优,其拉伸强度为26.8MPa,撕裂强度为50.2kN/m,断裂伸长率为702.5%,邵氏A硬度为65.7。随着LNC/MMT比例的增加,复合材料的焦烧时间逐渐缩短,正硫化时间先下降后略微上升,热稳定性逐渐下降。
Abstract
Natural rubber(NR) composites was prepared by using lignocellulose/montmorillonite (LNC/MMT) as a partial substitution for carbon-silica dual phase filler (CSDPF),and the effect of the ratio of LNC/MMT and CSDPF on natural rubber was investigated.The results shown that the tensile strength and tear strength of rubber composites first increased and then decreased.The elongation at break gradually increased and the hardness decreased slightly with the increase of the proportion of LNC/MMT.When the mass ratio of LNC/MMT and CSDPF was 10∶30,the mechanical property of natural rubber composites was excellent,tensile strength was 26.8MPa,tear strength was 50.2kN/m,elongation at break was 702.5%,and shore A hardness was 65.7.With the increase of the proportion of LNC/MMT,the scorch time of rubber composites gradually decreased,the vulcanization time first decreased and then increased slightly,the thermal stability gradually decreased.
关键词
木质纤维素
/
蒙脱土
/
天然橡胶
Key words
lignocellulosic
/
montmorillonite
/
natural rubber
木质纤维素/蒙脱土/炭黑-白炭黑/天然橡胶复合材料的制备及性能研究[J].
化工新型材料, 2019, 47(12): 143-146 DOI:
[1] Chong E L,Ahmad I,Dahlan H M,et al.Reinforcement of natural rubber/high density polyethylene blends with electron beam irradiated liquid natural rubber-coated rice husk[J].Radiation Physics & Chemistry,2010,79(8):906-911.
[2] Visakh P M,Thomas S,Oksman K,et al.Crosslinked natural rubber nanocomposites reinforced with cellulose whiskers isolated from bamboo waste:processing and mechanical/thermal properties[J].Composites Part A,2012,43(4):735-741.
[3] Ayrilmis N,Kaymakci A,Akbulut T,et al.Mechanical performance of composites based on wastes of polyethylene aluminum and lignocellulosics[J].Composites Part B,2013,47(3):150-154.
[4] 朱晨杰,张会岩,肖睿,等.木质纤维素高值化利用的研究进展[J].中国科学:化学,2015,45(5):454-478.
[5] 丁国新,程国君,李亭亭,等.木质纤维素/蒙脱土橡胶补强剂的制备及应用[J].化工新型材料,2017,45(2):219-221.
[6] 张晓涛,王喜明.木质纤维素/纳米蒙脱土复合材料对废水中Cu(Ⅱ)的吸附及解吸[J].复合材料学报,2015,32(2):385-394.
[7] 陈刚,王丽.木质纤维素基纳米复合材料对Pb2+、Cd2+的吸附研究[J].功能材料,2014,45(22):22084-22090.
[8] 张佳佳,张晓朦,李姜,等.聚丙烯/蒙脱土和聚丙烯/石墨烯交替多层材料的结构与气体阻隔性能[J].高分子材料科学与工程,2017,33(9):35-38.
[9] 李颀,赵素合,焦海全,等.炭黑-SiO2双相纳米填料的制备、结构及其填充溶聚丁苯橡胶的性能[J].合成橡胶工业,2006,29(6):454-457.
[10] 王丽,庞方亮,王爱勤.木质纤维素-蒙脱土纳米复合材料的制备[J].功能高分子学报,2010,23(1):103.
[11] 王超,史睿,丁政茂,等.三元乙丙橡胶/氯丁橡胶共硫化阻燃橡胶的制备及性能[J].高分子材料科学与工程,2018,34(3):36-42.
基金资助
安徽省高校自然科学重点研究项目(KJ2016A187);安徽省高校优秀青年人才支持计划项目(gxyq2018015)
