摘要
以马来酸酐(MAH)为交联剂,制备了以环氧化天然橡胶(ENR)和聚乙烯醇(PVA)为互穿组分的半互穿网络聚合物(Semi-IPN ENR/PVA),通过红外光谱、扫描电镜、X射线衍射仪(XRD)和电子万能材料试验机,研究了Semi-IPN ENR/PVA的形态结构、结晶性能和力学性能。结果表明,ENR与PVA形成了具有微相分离形态结构的Semi-IPN ENR/PVA。MAH的加入降低了PVA的结晶度,在一定程度上提高了ENR和PVA的相容性。Semi-IPN ENR/PVA的力学性能均比交联前增强,其中交联后断裂伸长率和撕裂强度均随着MAH含量的增加而逐步下降,而硬度则没有随着MAH含量的增加发生明显变化。
Epoxidized natural rubber/Polyvinyl alcohol semi-interpenetrating polymer network（ENR/PVA semi-IPN）were prepared using maleic acid as the crosslinking agent.FI-IR,SEM,XRD and mechanical test were used to study the morphology,crystalline,and mechanical property of the ENR/PVA semi-IPN.An SEM of the semi-IPNs showed microphase separation,when compared with the blend.It demonstrated that the existence of maleic acid decreased the crystallinity of PVA,and impoved the compatibility between PVA and ENR,as observed from XRD.Mechanical test showed that the semi-IPNs exhibited good properties after crosslink.The tear strength and elongation decreased with the addition of the content of the maleic acid and the hardness showed no obviously change.
出处
《弹性体》
CAS
2015年第2期54-57,共4页
China Elastomerics
基金
中国热带农业科学院橡胶研究所基本科研业务费专项资金资助项目(1630022013020)
