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- Effect of chain extenders on PVB resin and film was studied. 讨论了扩链剂的加入对PVB树脂及薄膜性能的影响。
- The food chains extend to the abyss. 食物链一直延伸到深渊。
- The effects of different chain extenders and different contents on polyurethane emulsions from polyether and polyester have been studied. 研究了不同扩链剂及其用量对聚醚型和聚酯型聚氨酯乳液的影响。
- The main results obtained are as follows: 1. Two kinds of chain extenders, BOZ and EMDI (4,4-diphene methane diisocyanate capped by ethanol), were synthesized. 制备了BOZ及乙醇封端的二苯基甲烷异氰酸酯(EMDI)两种扩链剂。
- The factors include relative molecular mass of PTMG, diisocyanates, chain extenders, mass fraction of hard segment, NCO mass fraction and chemical crosslink in prepolymer,etc. 讨论了化学结构因素对聚氨酯弹性体力学性能的影响,化学结构因素包括PTMG相对分子质量、二异氰酸酯、扩链剂、硬段质量分数、预聚体NCO基质量分数和化学交联等。
- The effects of the solid content,soft/hard segment levels and chain extenders on material's intrinsic viscosity,elasticity,hardness and mechanic property have been observed. 还考察了聚氨酯中软段和硬段相对含量的变化对力学性能的影响。
- ZHAO Zhang-cai,LU Guo-lin,WANG Bei-hai.Effect of diols chain extenders on mechanical properties of HTPB propellants[J].Journal of Solid Rocket Technology,2000,23(4):23-28. [2]赵长才;鲁国林;王北海.;二醇类扩链剂对丁羟推进剂力学性能的影响[J]
- By addition of third monomers,chain extenders and regulators,the chemical structure of the copolymers can be modified and the molecular weights and functionalities of the copolymers can be controlled. 该反应现已能够较顺利地实现。反应中加入第三单体、扩链剂、调节剂，可以使共聚物具有不同的化学结构，以及能随意控制分子量和官能度。
- The equilibrium constants of some chain extending reactions were calculated for normal chain extenders from the d... 利用推导出的理论关系计算出常见扩链剂参与扩链反应的平衡常数。
- Fiber Structure Development in Bicomponent Fibers of Recycled PET Modified with a Chain Extender. 扩链剂改性再生PET双组分纤维的结构。
- Thermal behaviors of high viscosity Nylon 66, prepared by chain extending , have been studied by DSC. 用差示扫描量热法(DSC)研究了扩链法制备的高粘度尼龙66的热行为。
- Polyurethane elastomers based on glycols(PEA,PPG PTMG), diisocyanate(TDI) and chain extender(E-300) were prepared. 以多元醇(PEA,PPG,PTMG),PDI,E 300为原料,制备了PU弹性体。
- The chain extender was analysed by infrared spectrometry,mass spectrometry and element analysis etc. 用质谱、红外光谱、元素分析等对该扩链剂结构进行了分析。
- It is a barbarous way to extend territory by arms. 以武力扩张领土是一种野蛮的方式。
- The influences of the types and content of chain extender on the performance of emulsion were analyzed. 采用预聚体分散法合成含氟聚氨酯乳液,并分析了扩链剂种类及含量对乳液性能的影响。
- Then, isophorone diisocyanate (IPDI) as hard segments and 1,4-butanediol as chain extender were added to prepare thermoplastic polyurethane (TPU). 然后，以异佛尔酮二异氰酸酯（IPDI）为硬段，1,4-丁二醇为扩链剂，得到了硅油改性热塑性聚氨酯（TPU）。
- By the pre-polymer and chain extender afterwards process, the product was synthesized with the performance of no toxicity and low viscosity. 该产品采用预聚体法和后扩链合成工艺，使该产品具有环保无污染、产品粘度小等特点；
- Application of non polyurethane,polyester polyurethane,polyether polyurethane and chain extender on the melt spinning of elastic fiber is introduced . 介绍了非聚氨酯类、聚酯型聚氨酯类、聚醚型聚氨酯类聚合物及扩链剂在熔纺弹性纤维上的应用。
- The soft segments based on polyether, and functional chain extender PDSA would be resulted into the better degree of dispersion on the nanocomposites. 由实验结果显示，奈米复合材料的分散性取决于有机黏土含量、聚胺酯软链段及链延长剂的种类。
- A proposal to extend the highway was flung out at the meeting. 延伸高速公路的建议在会议上被否决。
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries
