玻璃化温度

  • 网络glass transition temperature;t g
玻璃化温度玻璃化温度
  1. 采用热重分析TG和DSC分析了大豆蛋白纤维的热学特征,得出大豆纤维的玻璃化温度和分解温度。

    The thermal property of the soybean protein fibers was analyzed by TG and DSC . The glass transition temperature and decomposition temperature are obtained .

  2. 聚丙烯酸酯玻璃化温度的QSPR研究

    QSPR study on glass transition temperature of polyacrylates

  3. 研究了不同叠氮取代率的叠氮聚醚多元醇的热分解行为和玻璃化温度,发现叠氮聚醚多元醇热分解分两步进行:第一步为255.06′C时,叠氮基团分解;

    The relationship of B 's thermal degradation and glass transition temperature with the percent of azide substitution is studied .

  4. 结果表明:加热温度在聚碳酸酯玻璃化温度(Tg)附近时,加压方式直接影响试件的质量;

    The results showed that when heating temperature is near the vitrification point , compression speed influences the quality of the parts directly .

  5. 由于PEG和PS具有不同的玻璃化温度,因此优化的压制工艺参数会有所不同。

    The process parameters are different because that PEG and PS have the different glass transition temperature .

  6. 降低核的玻璃化温度(Tg),可以提高聚合物的对比率;

    High contrast ratio was gained by distracting glass transition temperature ( Tg ) of core polymer ;

  7. DSC的结果说明柿叶的玻璃化温度约为182.92℃左右,高于纤维素和半纤维素。

    The vitrification point is about 182.92 ℃, higher than that of the cellulose or semi cellulose .

  8. 氟聚物的玻璃化温度与DMA测量频率关系的研究

    Study of Relationships Between Glass Transition Temperatures and Test Frequencies on Fluoropolymers by DMA

  9. 玻璃化温度(T_g)提高。研究结果为长期耐高温PPS/GF复合材料构件的热层压工艺提供技术依据。

    The results may be used in heating laminating process for high temperature-resistant PPS / GF composite materials .

  10. TiO2/BMI固化树脂玻璃化温度高达302℃,热分解温度达420℃;

    The glass temperature of TiO 2 / BMI cured resin was 302 ℃, thermal decomposition temperature was 420 ℃ .

  11. 论述了丙烯酸系乳液聚合物设计中玻璃化温度(Tg)的预测。

    This article discusses the calculation for the temperature of glass state change ( T g ) in acrylic emulsion copolymer design .

  12. 结果表明,不同比例的PET/PEN都呈现出一个玻璃化温度,即PET、PEN在无定形态是相混溶的;

    PET / PEN at various compositions all show a single class transition temperature T g , Which means PET and PEN were miscible in amorphous phase .

  13. 利用溶解度参数法、共溶剂法、稀溶液粘度法、折光指数法、玻璃化温度法和红外光谱法对PVC和CA的相容性进行探讨。

    The miscibility of PVC blends in tetrahydrofuran ( THF ) were characterized by solubility parameter , dilute solution viscometry , refractive index and glass transition temperature , etc.

  14. 热处理时,低分子量的冷冻升华试样的玻璃化温度很快达到本体试样的Tg。

    Also , the Tg of the freeze-dried samples with low molar mass is easy to attain the glass transition temperature of bulk sample .

  15. 动态力学和DSC结果显示,随着PB比例的增大,共混物的玻璃化温度逐渐减小,共混物的热稳定性逐渐变差。

    DMA and DSC results showed that with PB ratio increasing , glass transition temperature of blends is diminishing , thermal stability of blends gradually poor .

  16. 用差示扫描量热仪对乙烯基单体/N取代马来酰亚胺共聚物的玻璃化温度(Tg)进行测定。

    The glass transition temperature ( T g ) of vinyls / N substituted maleimides copolymers was determined by differential scanning calorimeter ( DSC ) .

  17. 用热重分析及差热分析实验方法,测试了几种共聚物的热氧降解温度(Td)及玻璃化温度(Tg)。

    The degradation temperature ( Td ) and glass transition temperature ( Tg ) of copolymer were determined by TG and DTA methods .

  18. 随着硫化时间的延长,硬质SBR的硬度、拉伸强度及弹性模量增大,玻璃化温度显著提高。

    And as the curing time extended , the hardness , tensile strength and elastic modulus of SBR ebonite increased and its T_g rose significantly .

  19. 当PCL/PDTC为80/20时,共混物只有一个玻璃化温度,为热力学相容体系。

    The PCL / PDTC ( 80 / 20 ) blend is miscible with a single Tg .

  20. 高玻璃化温度FR-4层压板气泡产生原因分析

    Analysis of the Formation of Void in High Tg FR-4 Laminates

  21. 结果表明,含有聚乙二醇(PEG)柔性链段、同时添加第三单体的共聚醚酯和无机盐的复合物,具有较低的玻璃化温度,从而体积电阻率较低。

    Obtained results indicate that the complexes prepared from copolyether ester consisting PEG and other third monomer with ion inorganic salt have lower glass transition temperature T g.

  22. 由于PTT纤维的Z字形大分子链结构和较低的玻璃化温度,使得其比PET更容易染色,且最佳染色温度为110℃,在100℃也有很高的上染率。

    Owing to the zigzag macromolecular structure and lower glass transition temperature , coloration of PIT is easier than PET at 110 , the best dyeing temperature for PIT .

  23. DSC分析证实随着PS含量的增加,体系玻璃化温度逐渐下降,说明PC与PS是部分相容的。

    It was confirmed by DSC that the T g of the blend system decreased with the increase of PS content in the system , and PC was partly compatible with PS.

  24. 并讨论了涤纶纤维在后加工过程中玻璃化温度(Tg)与纤维聚集态结构的关系。

    The relation of the change of glassy transition temperature ( T g ) of PET fiber during the later spinning process with the multipe structure of PET fiber was also studied .

  25. 该共缩聚型聚酰亚胺在非质子强极性溶剂中均具有良好的溶解性,玻璃化温度(Tg)大于250℃,10%的热分解温度(Td)为5197℃。

    The copolyimide was very soluble in strong polar aprotic solvents . Its glass transition temperature was above 250 ℃ and 10 % thermal decomposition temperature was 519.7 ℃ .

  26. TG-DSC分析得到聚合物的玻璃化温度为130℃,热分解出现在244.6℃。

    Glass-transition temperature of the polymer is 130 ℃ and the thermolysis temperature is 244.6 ℃ as analyzed by TG-DSC .

  27. 热性能分析结果表明PS/TiO2掺杂材料的热分解温度高于纯PS的热分解温度,并且玻璃化温度也得到提高。

    Thermal performance test indicated that the thermal decomposition temperature of PS doped with nano-TiO2 was higher than that of pure PS , and the glass transition temperature of PS doped with nano-TiO2 was improved .

  28. 结果表明,在PAN膜中添加四氧化三铁对玻璃化温度没有影响,但能提高PAN环化脱氢反应的温度和分解温度;

    The results show that there is no chemical bond between PAN and Fe_3O_4 , but addition of ferrosoferric oxide can increase the decomposition temperature of PAN and do not change the glass transition temperature of PAN .

  29. 结果Tmg与升温速率呈线性相关,TP-5/PLGA微球玻璃化温度(Tg)为45.0℃。

    Results : There is liner regression between Tmg and temperature rising rate . The Tg of TP-5 / PLGA microsphere is 45.0 ℃ .

  30. 通过IR和DSC分析表明聚合物为无规共聚物,共聚物的玻璃化温度随着体系中丙烯腈含量的增加而增大。

    IR and DSC results indicate that random copolymers are formed by microemulsion copolymerization and the value of glass transition temperature of the copolymers increase with the increase of the weight ratio of acrylonitrile in the feed . 2 .