polyurethanes 中文意思是什麼

polyurethanes 解釋
聚氨基甲酸酯
  1. The study included polyamides, polyolefins, cellulosics, halogenated fibers, polyesters, acrylics and polyurethanes,

    上述研究樣品包括聚酰胺、聚烯烴，纖維素，含鹵素等纖維，聚酯，聚丙烯腈和聚氨基甲酸纖維。
  2. The influence of some raw materials such as polyester the uniformity, vesicant foams and catalysts to the preparation of rigid polyurethanes foam is also discussed

    探討了聚酯多元醇、泡沫穩定劑、發泡劑及催化劑等原料對硬質聚氨酯泡沫塑料制備的影響。
  3. Plastics. basic materials for polyurethanes. polyesters. determination of the hydroxyl value

    塑料製品.聚氨基甲酸酯塑料.聚酯.烴基值的測定
  4. Plastics. basics materiels for polyurethanes. polyethers. determination of the hydroxyl value

    塑料製品.聚氨基甲酸酯塑料.聚醚.烴基值的測定
  5. Influence of the hard - segment content on the shape - memory performance of thermally stimulated shape - memory polyurethanes

    硬段含量對熱致形狀記憶聚氨酯材料記憶性能的影響
  6. Plastics. primary materials for polyurethanes. polyesters, polyethers and isocyanates. visual assessment of coloration in gardner units

    塑料.聚氨酯聚酯聚醚和異氰酸酯用原材料.加德納單位顏色目視法測定
  7. Plastics. basic materials for polyurethanes. determination of total chloride in pure and raw isocyanates

    塑料製品.聚氨基甲酸乙酯基料.純異氰酸鹽和原異氰酸鹽中總氯含量的測定
  8. Plastics. basic materials for polyurethanes. polyethers. determination of non saturation level

    塑料製品.聚氨基甲酸酯塑料.聚醚.不飽和系數的測定
  9. Side chain polyurethanes with azo group are characterized and confirmed by ftir, uv - vis, dsc, vpo, z - scan, polarize microscope. the results show that the end - group and the flexibility of main chain affects the growing up of liquid crystalline phase greatly. because the determinable way of detection is defective, it was not founded the liquid crystalline behavior obviously contributes to the non1inear optical thection

    最後，在分析討論實驗結果的基礎上，指出側鏈型聚氨酯液晶中側鏈介晶基元的末端基團及主鏈的柔性對其液晶態的形成有重要影響；由於檢測手段的不齊備，未能觀察到熔致型聚氨酯液晶的液晶行為對其非線性光學效應的貢獻作用。
  10. Plastics. basic materials for polyurethanes. determination of the ratio of 2, 4 and 2, 6 isomers in the toluylene diisocyanate by infra - red spectroscopy

    塑料製品.聚氨基甲酸酯塑料.用紅外線光譜法測定二異氰酸二苯乙烯中2 4和2 6異構體的含量
  11. Segmented polyurethanes containing amorphous or crystalline soft segments as reversible phase and crosslink points as fixed phase can exhibit shape - memory properties

    摘要聚氨酯是一種具有微相分離本體結構的多嵌段共聚物，可通過調節原料的組成和配比，得到性能各異的新型功能高分子材料。
  12. Plastics. base materials for polyurethanes. polyethers. determining of the cloud point

    塑料製品.聚氨基甲酸酯塑料.聚醚.濁點的測定
  13. Plastics. basic materials for polyurethanes. polyethers and polyesters. determination of water

    塑料製品.聚氨基甲酸酯塑料.聚醚和聚酯.水分的測定
  14. Plastics. basic materials for polyurethanes. polyethers. determining of the conventionnal ph value

    塑料製品.聚氨基甲酸酯塑料.聚醚.常規ph值的測定
  15. Plastics. basic materials for polyurethanes. polyethers and polyesters. determination of the density

    塑料製品.聚氨基甲酸酯塑料.聚醚和聚酯.密度的測定
  16. Plastics. base materials for polyurethanes. polyethers. determination the sodium and potassium content

    塑料製品.聚氨基甲酸酯塑料.聚醚.鈉和鉀含量的測定
  17. Plastics. primary materials for polyurethanes. determination of chloride hydrolysable in diisocyanate tolylene

    塑料製品.聚氨基甲酸乙酯基料.二異氰酸二苯乙烯中水溶氯含量的測定
  18. Silylate - terminated polyurethanes with built - in hydrophilic sites were synthesized. when the polymer is dispersed in water, the silane alkoxy end - groups of the polymer undergo hydrolysis, followed by condensation to form a stable cross - linked aqueous dispersion. tem studies indicated that with more incorporation of hydrophilic sites, the particle size of the dispersion decreased. it was also found that the film property depended on the particle size when the crosslinking density in particels was much higher. the average molecular weight of the elastically effective network chain mc measured by swelling experiments shows fairly good agreement with the theoretical value of mc. it was also found that the cross - linking density of the casting film may increase during the film formation and drying process

    將硅氧烷封端的含親水基團的線性聚氨酯預聚體分散於水中，獲得穩定的聚氨酯分散體.由於硅氧基團水解、縮合，在分散體粒子內產生擴鏈交聯反應，生成了交聯水基聚氨酯分散體.透射電子顯微鏡研究表明分散體粒徑小、分佈寬.掃描電子顯微鏡研究了成膜結構及成膜性能與粒徑的關系.溶脹實驗計算獲得的兩交聯點之間的平均分子量與理論平均分子量相符.研究還發現此分散體膜在乾燥過程中可進一步交聯.膜的水溶脹及機械性能表明，此分散體具有極大的工業應用價值
  19. Can be topcoated with epoxies, polyurethanes, epoxy coal tars, vinyls, chlorinated rubbers, acrylics or others as recommended

    可以復塗以環氧、聚氨酯、環氧煤焦油、乙烯基、氯化橡膠、丙烯酸或其他推薦的常用類型面漆。
  20. It is a1so referred to the nlo liquid crystal polyurthanes and the system of nlo liquid crysta1 polymer briefly. fchrmore, the possibility of combining the nlo polyurthanes and lcpu is also discussed based on azobenzene compound, whch own liquid crysta1line mesogenic unit and nonlinear opical wht togethel a series of polyurethanes with two kinds of diisocyanates were synthsized with azobenzene compounds which we prepared beforehand. the azobenzene compounds were charaterized and confirmed by ftir, " h - nmr, uv - vs, dsc, and elemeni analysis

    本文第一章簡介了液晶的有關基本概念；綜述了聚氨酯液晶的研究進展，並著重總結了聚氨酯液晶的合成方法和影響聚氨酯液晶形成液晶相的因素；介紹了非線性光學聚氨酯液晶，對非線性光學聚合物液晶體系也作了扼要的闡述，指出利用含有既是液晶基元又是非線性光學單元的偶氮基團的化合物合成聚氨酯液晶，實現兩者結合的可能性。
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