废电木粉填充改性环氧树脂的研究  

Study on modified epoxy resin filled with waste bakelite powder

作　　者：李晴 胡青宇 潘梓豪 刘伟 马文石[1,2] Li Qing;Hu Qingyu;Pan Zihao;Liu Wei;Ma Wenshi(School of Materials Science and Engineering,South China University of Technology,Guangzhou 510640,Guangdong,China;South China Institute of Collaborative Innovation,Dongguan 523808,Guangdong,China)

机构地区：[1]华南理工大学材料科学与工程学院,广东广州510640 [2]华南协同创新研究院,广东东莞523808

出　　处：《中国胶粘剂》2022年第12期8-14,共7页China Adhesives

基　　金：东莞市科技计划项目(2020507163161)。

摘　　要：开展了废电木粉填充改性环氧树脂的研究。首先将废旧电木板粉碎球磨制备为废旧电木粉(SBP),然后用硅烷偶联剂(KH-550)对SBP进行表面处理,再将其作为功能填料添加到环氧树脂(EP),并对SBP/EP复合材料的结构和性能进行了研究。研究结果表明:使用KH-550改性可使SBP与EP的界面相容性更好,且当复合材料中w(KH550-SBP)=25%时,复合材料的力学性能最优,拉伸强度为59.2 MPa,弯曲强度为92.59 MPa,弯曲模量为3029.7 MPa,冲击强度为13.19 kJ/m^(2),较纯环氧树脂有不同程度的提升;复合材料的热稳定性略有降低,但其热力学性能得到了有效的提高;SBP的加入提高了复合材料的残余质量,增强了复合材料的刚性,且玻璃化转变温度(Tg)得到提升,并使其有更好的耐热变形性能。The modified epoxy resin filled with waste bakelite powder was studied in this paper.Firstly,waste bakelite plate was milled into waste bakelite powder(SBP),the surface of SBP was treated with silane coupling agent(KH-550),and then it was added to epoxy resin(EP)as a functional filler.The structure and properties of SBP/EP composite material were investigated.The research results showed that the modification with KH-550 resulted in better interfacial compatibility between SBP and EP.When w(KH550-SBP)=25%in composite material,the mechanical properties of composite material were optimal,the tensile strength was 59.2 MPa,the flexural strength was 92.59 MPa,the flexural modulus was 3,029.7 MPa,and the impact strength was 13.19 kJ/m^(2),which were improved to some extents compared with pure epoxy resin.The thermal stability of composite material decreased slightly,but its thermodynamic properties were effectively improved.The addition of SBP improved the residual mass of composite material,enhanced the rigidity of composite material,and improved the glass transition temperature(Tg),making it have better thermal deformation resistance.

关 键 词：废旧电木粉 环氧树脂 复合材料 

分 类 号：TQ632.72[化学工程—精细化工]