| 1. | Material with low crystallisation rate 材料结晶速度慢 |
| 2. | The results shows that the addition of nucleating agents increased the onset temperature and peak temperature and improved crystallization rate of pp 结果表明,两种成核剂的加入均可提高聚丙烯的结晶起始温度和结晶峰温度,并加快结晶速度。 |
| 3. | Results of the dsc analysis show that the addition of mcm - 41 do increase the rate of crystallization of pet . the crystallinity of pet / mcm - 41 nanocomposite is much higher compared with other fillers 实验发现,介孔分子筛mcm对烈5o的填加量与pet共混后可明显地增加pet的结晶速度。 |
| 4. | Automatic temperature coutrol can precisely control the crystalization temperature to ensure grain structure , mechanically controlled casting die speed is used to ensure the density of material 自动温控系统对结晶温度实施准确控制以确保晶粒结构(金相)符合要求。机械控制恒定的铸造结晶速度以保证材质的致密性。 |
| 5. | However , the measurement of tga and dsc showed that the thermal stability of the nanocomposites had improved a lot and the crystal speed had also have a slight improvement 但是, tga和dsc分析结果显示:聚乙烯蒙脱土纳米复合材料相对于纯聚乙烯来说,热稳定性有较大幅度提高,同时,复合材料的结晶速度也稍有增加。 |
| 6. | Similarly , the impact strength is increased about seven times than that of the pure mc nylon6 . mcm - 41 is also used as the filler material for pet . the effects of mcm - 41 on the crystallinity and the rate of crystallization are obtained 首次提出将孔性材料介孔分子筛mcm作为结晶改善剂名于聚对苯m甲酸乙m酯中,研究它对pet的结晶速度和结晶差这两方面结晶性能的影响。 |
| 7. | Volume shrinkage of sample results in the increasing of the value of the crystallization rate vc and the decreasing the values of the avrami exponent n in the primary crystallization and s , defined as the relative crystallinity degree when experiment data deviate theoretical predicting straight line . compared with the avrami equation , the price equation hardly makes progress on describing the behavior of polymer later stage crystallization 样品体积收缩,导致avrami指数n值减小;结晶速度v _ c值增加;表示实验值偏离理论预测直线时的相对结晶度_ s值减小;与avrami方程相比, price方程仍不能较准确地描述高聚物等温后期结晶行为。 |