在小型反应器内合成了双峰聚丙烯（BMPP）和含有成核剂的双峰聚丙烯（BMPP/NA），考察了试样的结晶、熔融行为和力学性能。BMPP的结晶温度较均聚PP提高5℃（降温速率10℃/min），结晶速率有一定程度增加；而BMPP/NA的结晶温度较均聚PP提高16.5℃，且结晶速率明显加快。BMPP和BMPP/NA的拉伸强度和弯曲弹性模量较均聚PP有了较大提高。

采用差示扫描量热计考察了2，2’-亚甲基-双（4，6一二叔丁基苯基）磷酸及其衍生物在聚丙烯中成核的有效性，并研究了成核剂对力学性能的影响。结果表明：在聚丙烯中添加0.4%（质量分数）的磷酸酯的钠盐或甘油酯，使聚丙烯的结晶温度提高了15℃或11℃，结晶度增加3%～6%，结晶速率显著增加；在反复熔融、结晶过程中，其成核效应没有发生改变；材料的模量提高了20%～30%，弯曲强度也提高了10%～20%。其它几种磷酸酯的成核效果不明显。

研究了玻纤毡增强热塑性复合材料（GMT）流动成型过程中模腔压力和材料流动方向对制品力学性能和纤维取向的影响。研究表明：随着压力提高，弯曲强度和模量同步增加；但压力超过18MPa后，性能变化不明显。随布料面积分数减小，单轴拉伸流动成型将导致沿流动方向和垂直流动方向强度及模量差异变大，纤维取向严重；但双轴拉伸流动成型得到的制品各方向性能较均匀，基本呈现各向同性。

以马来酸酐（MAH）和三烯丙基异氰脲酸酯（TAIC）固相法接枝等规聚丙烯（iPP）制备了高接枝率、高极性的PP接枝交联物，并研究了接枝物的流变特性、结晶与熔融行为和结晶形态。在接枝链上引入TAIC后稳定了分子结构，熔体流动速率减小。接枝物的结晶峰温、熔融峰温、结晶度及结晶速度均低于纯PP。但是较高接枝率的交联物的成核作用很强。其等温结晶行为不同于PP和MPP，成核和生长方式为瞬时成核的二维晶粒生长。

A cellular textile composite structure integrated with fiber Bragg grating (FBG) sensors is designed for tangential load distribution measurements. The composite consists of many cylindrical shell cells for which a unit cell is fabricated from polyester and glass woven fabrics and epoxy. FBG sensors are bonded on the surface of the cells. The feasibility of using this cellular composite to measure tangential load distribution is demonstrated by experiments. The strain induced wavelength shift in the FBG sensor has a linear relationship with the tangential force within a definite range. Numerical simulations are created by finite element analysis. The influences of the environmental temperature, thickness, and effective moduli of the composite and the influences of the position and direction of the FBG sensors are discussed. The sensitivities of Ibis device are 0.09nm/N (for PET tension), 0.05nm/N (for PET compression), 0.04nm/N (for glass tension), and 0.03nm/N (for glass compression), and the measurement ranges are 0-