he thermal shrinking mechanism of high shrinking PP fiber and change of the super molecular structure in the shrinking process was studied by means of wide angle X ray diffraction and micropolariscope.
运用Ｘ－光衍射仪、偏光显微镜及其复合测试技术，对高收缩聚丙烯纤维热处理前后超分子结构变化和纤维热收缩机理进行了研究，结果表明：高收缩聚丙烯纤维必须具有大量高取向非晶区，少量结晶区，结晶度低，晶粒尺寸小，近晶型晶胞。
It is a hot field that the research of improving fire-resisting perpormance of HPC through incorporating polypropylene fiber(PP fiber) or steel fiber.
通过在混凝土中掺加聚丙烯纤维、钢纤维等提高高性能混凝土的抗火灾高温性能成为学者们研究的热门领域。
Through the testing on relative cracking index and energy at break,the effect of silane coupling agent modification on the plastic shrinkage cracking resistance of PP fiber in cement mortar was also investigated.
采用乙烯基三乙氧基硅烷偶联剂(SCA-1613)对聚丙烯纤维分别进行浸泡和表面接枝改性,并研究了最佳改性工艺条件;通过对开裂指数和断裂能的测试,研究了偶联剂改性对聚丙烯纤维在砂浆中的抗裂性能的影响。
Experimental study on behaviors of glass fiber reinforced concrete and polypropylene fiber reinforced concrete;
玻璃纤维与聚丙烯纤维混凝土性能的对比试验
PEG-ZnO-PP composite antistatic agent and its modification for polypropylene fiber;
PEG-ZnO-PP复合抗静电剂及其对聚丙烯纤维的改性
Study on mechanical properties of polypropylene fiber lightweight aggregate concrete;
聚丙烯纤维轻骨料混凝土的力学性能研究
Development of dyeability modification on polypropylene fibre;
聚丙烯纤维染色改性进展
Study on effect from polypropylene fibre on performance of high-performance concrete for large-scale aqueduct;
聚丙烯纤维对大型渡槽高性能混凝土的性能影响研究
Study on improvement of characteristics of polypropylene fibre reinforced marine concrete with high performance admixture;
高性能掺合料改善聚丙烯纤维海工混凝土性能的研究
Mechanism research on improvement of resistance to plastic shrinkage and cracking of cement mortar by polypropylene fibers;
聚丙烯纤维提高水泥砂浆抗塑性开裂的机理
Compared with the polypropylene fibers(PP),the influence of basalt fiber(BF) on compressive,flexural,bending performance of cement mortar and distribution pattern of fibers in cement mortar by SEM were studied and discussed.
以聚丙烯纤维为对比,研究了不同掺量的玄武岩纤维对水泥砂浆抗压、抗折、抗弯性能的影响,并采用扫描电子显微镜观察纤维在砂浆中的分布状态。
In this paper,the influence of polypropylene fibers on flexural properties of reinforced concrete beams is studied through the tests of plain concrete and polypropylene fibers reinforced concrete beams.
通过对普通混凝土梁和聚丙烯纤维混凝土梁的试验,研究了低掺量下(0。
Development of Polypropylene Fiber Used in Nonwovens;
非织造布用聚丙烯纤维的进展
Advancement in Polypropylene Fiber Production;
聚丙烯纤维产品的新进展
Research on Bend Properties of Polypropylene Fiber Reinforced Concrete Beam;
聚丙烯纤维混凝土配筋梁变曲性能试验研究