嵌段共聚物熔体流变行为研究进展

微相分离的结构特点赋予了嵌段共聚物很多优异的性能,使其广泛应用于汽车部件及工具手柄、电线电缆包皮或绝缘带、医疗制品及食品容器、密封胶、粘合剂、涂料以及聚合物共混改性等领域。聚合物流变特性直接关系到材料加工参数的选择以及产品最终性能,是聚合物结构设计、材料加工参数优化选择及拓展产品应用领域的理论基础。本文对嵌段共聚物的熔体流变行为进行了综述,着重介绍了与嵌段共聚物特殊结构相对应的流变特性,以及流变特性与相行为之间的关联,并提出了嵌段共聚物熔体流变行为研究的前沿与重点。

Research Progress on the Melting Rheological Behaviors of Block Copolymer

Block Copolymers are endowed with many excellent properties because of the micro-separation structure,have been widely applied in many fields,such as automobile parts,toolholders,casings of electrical wire and cable,medical appliances,food containers,encapsulant,adhesive,coating,polymer blend materials.Rheological measurements not only give much useful information on material moulding and processing,but also provide an effective approach to characterize the structure and properties of polymer materials.Poly...