氮化硼改性石墨烯制备PVC复合材料及其抗腐蚀性能的研究  

Preparation of PVC Composites with Boron Nitride Modified Graphene and Study of Its Corrosion Resistance

作　　者：潘宣成 唐泽君[2] PAN Xuan-cheng;TANG Ze-jun(Harbin Institute of Technology,Harbin 150006,China;University of Electronic Science and Technology of China,Chengdu 610000,China)

机构地区：[1]哈尔滨工业大学,黑龙江哈尔滨150006 [2]电子科技大学,四川成都610000

出　　处：《塑料科技》2024年第7期43-46,共4页Plastics Science and Technology

摘　　要：使用具有优异的化学稳定性和力学性能的二维无机材料氮化硼(BN)通过液相超声剥离的方式对石墨烯进行改性,制备氮化硼/石墨烯(GBN)复合填料来制备PVC复合材料,进一步研究GBN填料掺量对PVC复合材抗腐蚀性能的影响。结果表明:PVC复合材料的接触角在GBN掺量为1.0%时得到明显提升,为156°。随着GBN掺量的不断增加,PVC复合材料的失重率及物理尺寸变化率均不断降低,其中PVC复合材料失重率于掺量为1.5%时达到最低,为8.98%,而尺寸变化率超过1.0%时,下降幅度趋于平缓。此外,GBN掺量为1.0%时,PVC复合材料的拉伸应力保持率和拉伸应变保持率分别为156%和82%;PVC复合材料的色差变化逐渐降低,且当GBN掺量超过1.0%后,PVC复合材料的色差变化趋于平稳,当在掺量为1.0%时,PVC复合材料的色差为7.8。研究为制备具有较强耐腐蚀性能的PVC复合材料提供参考。Two-dimensional inorganic material boron nitride(BN) with excellent chemical stability and mechanical properties was used to modify graphene by liquid-phase ultrasonic exfoliation,and prepared boron nitride/graphene(GBN) composite fillers to prepare PVC composites.Furthermore,the effects of GBN filler content on the corrosion resistance of PVC composites were studied.The results showed that the contact angle of PVC composites was significantly improved at a GBN content of 1.0%,reaching 156°.As the GBN content increases,the weight loss rate and physical size change rate of PVC composites continuously decrease.Among them,the weight loss rate of PVC composites reaches the lowest at a dosage of 1.5%,which is 8.98%.When the size change rate exceeds 1.0%,the downward decrease tends to be gentle.In addition,when the GBN content is 1.0%,the tensile stress retention and tensile strain retention of PVC composites are 156% and 82%,respectively.The color difference of PVC composites gradually decreases,and when the GBN content exceeds 1.0%,the color difference of PVC composites tends to stabilize.When the content is 1.0%,the color difference of PVC composites is 7.8.The research provides a reference for the preparation of PVC composites with strong corrosion resistance.

关 键 词：氮化硼 石墨烯 聚氯乙烯 耐腐蚀 

分 类 号：TB33[一般工业技术—材料科学与工程]