官能度

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  • functionality
官能度官能度
  1. 用凝胶渗透色谱法(GPC)测定端羟基聚丁二烯(HTPB)官能度分布。

    The functionality distribution of hydroxy-terminated polybutadiene ( HTPB ) was determined by gel permeation chromatography ( GPC ) .

  2. 用光谱法确定了改性蓖麻油(MCO)的平均羟基官能度。

    The average hydroxyl functionality of MCO was measured by spectrum method .

  3. 梓油酸合成C(22)二官能度缩水甘油酯型环氧树脂的研究

    Study on Synthesis of c_ ( 22 ) diglycidyl ester type epoxy resins from stillingia oil fatty acids

  4. 并研究了四官能度星型支化SBS试样的~(13)C序列结构。

    The sequence structure of four arm star-type branches SBS was studied by 13C-NMR .

  5. 探讨了用TLC法研究HTPB官能度分布的可靠性。

    The reliability of TLC to determine the functionality distribution ofHTPB has been discussed .

  6. 通过IR光谱、GPC分析以及化学滴定法能估算出预聚物的官能度。

    By using chemical analysis , IR spectrum and GPC analysis , the function degree of the prepolymer can be calculated .

  7. 制备聚氨酯预聚体用的聚醚多元醇,其官能度一般为2-3,相对分子质量在400-4000之间,异氰酸酯则使用MDI预聚物。

    Polyols for making prepolymers are polyether polyols , with 2-3 functionality and molecular weight is between 400 and 4000 .

  8. 实验结果表明,NVP具有调节混合物系统官能度与体系黏度、交联密度及影响反应速度的作用,在适量的NVP含量下,光栅的衍射效率得到优化。

    The results indicate that the 1st order diffraction efficiency of grating can be optimized at the NVP concentration of 10 % .

  9. 本文建立了两个相关的∑Aai-B2型凝胶化反应方程,含试样官能团数和重均官能度两个未知数。

    The present paper establishes two equations on gelation reaction of type ∑ Aa1-B2 , containing two unknown numbers of functional group and weight average functionality .

  10. 讨论了多元醇组分平均每个羟基所对应的链段的相对分子质量(MOH)、平均官能度以及异氰酸酯种类对高硬度聚氨酯弹性体性能的影响。

    The effect of the factors , such as equivalent value and average functionality of polyol mixture , polyisocyanate type , on the properties of high-hardness polyurethane elastomers were discussed .

  11. 使用不同的活性稀释剂配制可UV固化的聚氨酯丙烯酸酯(PUA),研究了活性稀释剂的化学结构和官能度对PUA的粘度和其固化膜的动力学性质的影响。

    UV - curable polyurethane acrylate ( PUA ) is prepared using various reactive diluents . It is studied the effect of the chemical structure and functionality of the reactive diluents on their viscosity and dynamic mechanical properties .

  12. 实验结果表明,THF·BF3催化体系制备的PECH,相对分子质量1500~2000,平均官能度接近于2。

    The results show the THF · BF3 system is the best choice for preparing PECH with functionality near 2.0 , and the molecular weights are 1500 ~ 2000 .

  13. 采用双金属络合催化剂(DMC)制备具有极低的不饱和度、相对分子量高、分子量分布窄、平均官能度高等特点的新型聚醚多元醇。

    In this paper , a double-metal cyanide complex catalyst ( DMC ) was used to prepare a new polyether polyol with very low unsaturation , high equivalent molecula weight , narrow molecular weight distributing , high average functionality , etc.

  14. 利用N-121型UV固化测试仪测定光固化体系的固化进程,研究了活性稀释剂的官能度、光引发剂浓度及光照强度等对光固化速度的影响。

    In this paper , the curing process of UV curable systems was introduced using N & 121 model UV Curing tester . Influence of the functionality of reactive diluents , the concentration of photoinitiator in curable composition and the UV light intensity on the curing reactivity were also investigated .

  15. 通过硅氢加成反应合成一种新型醇型六官能度亚乙基硅氧烷,并以此作为交联剂,与107硅橡胶、填料、催化剂等配混,制备双组分脱醇型RTV硅橡胶。

    A new hexa - functional ethylidene siloxane was synthesized through hydro-silicone addition reaction . Using the compound as cross-linking agent to prepare two-component de-alcohol RTV silicone rubber mixing with 107 silicone rubber , fillers and catalyst .

  16. 初步研究结果为,双官能度引发剂热分解级数为1级,热分解频率因子为6.63×10~(10),热分解活化能为82.6KJ/mol;

    The results show that thermal decomposition series of bifunctional initiator is 1 , thermal decomposition factor of it is 6.63 × 1010 , thermal decomposition activation energy of it is 82.6KJ / mol ;

  17. 采用羟基官能度不同的马来酸酐改性蓖麻油(MCO),合成了一系列软段含有离子基的聚氨酯水分散液(MCPU)。

    A series of aqueous polyurethane dispersions ( MCPU ) with ionic groups in the soft segments were prepared with maleic anhydride modified castor oil ( MCO ) of various hydroxyl functionality .

  18. 多官能度橡胶增韧环氧树脂的相分离研究

    Study on the phase-separation of epoxy resin toughened by multi-functional rubber

  19. 有规立构聚丁二烯橡胶端羟基聚丁二烯官能度及分布的测定

    Stereoregular polybutadiene Determination of Functionality and Its Distribution of Hydroxy-Terminated Polybutadiene

  20. 不同官能度单体对丙烯酸酯紫外光固化材料表面能的影响

    Influence of monomers on surface energy of UV cured acrylates

  21. 双官能度引发剂引发丙烯酰胺聚合研究

    Study on the Polymerization of Acrylamide Initiated by Bifunctional Initiator

  22. 重均官能度具有按当量数分数加和的性质。

    Weighted Sorting Weighted average functionality possess additivity by equivalent number fraction .

  23. 羟基预聚物重均官能度的测定温差异重流运行长度的研究

    The determination of weighted average functionality for hydroxyl prepolymers

  24. 端羟基聚丁二烯官能度及分布的测定

    Determination of Functionality and Its Distribution of Hydroxy-Terminated Polybutadiene

  25. 多官能度扩链剂对水性光敏聚氨酯丙烯酸酯性能的影响

    Influence of Multi-functionality Chain Extender on the Properties of Waterborne UV-curing Polyurethane Acrylate

  26. 二官能度单体是指每个分子含有两个官能团的单体。

    A bis-functional monomer is a monomer containing two functional groups per molecule .

  27. 六官能度亚乙基硅氧烷的硫化性能初探

    Exploration of cure properties of hexa-functional ethylidene siloxane

  28. 聚醚多元醇官能度的计算与测定多元醇固-固相变变温红外光谱研究

    Study on infrared spectrum at various temperature with solid-solid phase Chang of the polyols

  29. 由氯元素分析得到聚合物分子链的氯端基数均官能度为0.86~0.87。

    The functionality of the Cl-terminated polymer is determinated as 0.86-0.87 by element analysis .

  30. 通过测定该方程的系数,间接测得试样官能团数和重均官能度。

    Coefficient of the equation , functional group number and weight average functionality indirectly measured .