• 另外还研究了不同含量聚氨酯材料在微分离程度的差异。

    Otherwise, phase separation degree of WPU film from different soft segment content was discussed.

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  • 通过调节聚氨酯合成配方组成及其比例,制备了具有结晶性的聚氨酯涂层

    A polyurethane coating agent with crystalline soft segment was synthesized through the adjustment of polyurethane composition and proportionality.

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  • 利用SBS丁二烯中的双键进行环氧化反应,引入环氧基团进行化学改性

    The double bonds of the butadiene soft matrix in SBS were epoxidized in order to incorprate the epoxy groups and modify chemically.

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  • 研究合成方法组成结构、熟化条件因素对聚氨酯弹性体力学性能影响

    The effects of synthetic method, components of soft segment and hard segment, post cure on the mechanical properties of polyurethane elastomers were studied.

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  • 研究不同离子基团聚酯多元醇和不同软段结构其干物理机械性能吸水率的影响

    The effects of polyols type and polyols containing different ionic groups on physical mechanical properties of dry films and water absorption were studied.

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  • 结果表明,选择适当组分制备条件通过聚体方式制备聚氨酯弹性体是可行的。

    The results showed that PU elastomers with broad glass transition temperature and damping temperature could be prepared with three soft segments by semi-prepolymer method at appropriate conditions.

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  • 两系列嵌聚酯型聚脲氨(PUU)弹性体,考察了这些材料不同退火条件下结晶变化

    W. 1228 were made by DSC. Further, thermal changes of soft segment crystalline of these materials at different annealing conditions were also investigated.

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  • 采用羟基官能不同马来酸酐改性蓖麻(MCO),合成了一系列含有离子基的聚氨酯分散液(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.

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  • 研究讨论了不同剂、扩链剂以及分子量对聚酯聚氨酯弹性体水解稳定性影响,并引入了参数QW

    The effects of different chain extenders, amount of extenders, molecular weights of soft segments on the hydrolysis stability of polyurethane are studied and parameters Q, W are introduced.

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  • 合成了系列水性聚氨酯分散液,就分子亲水性链乙二醇(PEG)含量对聚氨酯涂膜结晶性影响进行了探讨。

    A series of water - borne polyurethanes were synthesized, and the effect of PEG content in soft - segment on the crystallization of their cast films was studied.

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  • 概述了一系列新型的离子聚氨酯聚物合成性能研究进展以及聚物对聚氨酯离聚物离子簇解离现象的贡献。

    The synthesis, properties, recent research development and the significance for the ionic aggregate dissociation of polyurethane ionomers with ions in soft segments are reviewed.

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  • 研究了聚乙二醇分子量含量TPU结构性能影响,提出了TPU中引入PEG可以改善其与硝酸酯的混溶能力。

    The effect of molecular weight and content of PEG in soft segment on morphology and properties of TPU was studied.

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  • 通过DSC、弯曲实验力学实验,研究了形状记忆聚氨酯性能,发现高度结晶聚集形成具有较好形状记忆性能必要条件

    It was found that the high crystallinity of the soft segment regions and the formation of hard segment domains are the necessary conditions for polyurethanes with good shape memory behavior.

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  • 采用一步合成4 ,4 '-甲烷二环已基二异氰酸酯HMDI)、扩链剂1,4 -二醇(BDO)为硬四氢呋喃醚(PTMG)为软段脂肪聚氨酯

    The one step method was adopted in this study to synthesize aliphatic polyurethane with 4,4 methylene dicyclohexyl diisocyanate(HMDI), 1,4 butanediol(BDO) and poly (tetrahydrofuran)(PTMG).

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  • 又深雪地(如果必须前行的话,按照ii - 10的方式制作雪鞋)。雪清晨傍晚时分开始冻结,选择这个时间,前行比较容易。

    Deep soft snow (if movement is necessary, make snowshoes [Figure II-10]). Travel is easier in early morning or late afternoon near dusk when snow is frozen or crusted.

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  • 删除设置时间内(默认情况下,消息设置为48小时以后过期)邮件仍旧保存邮件数据库中。

    Messages remain in the mail database for the period that soft deletes are set (by default, messages are set to expire after 48 hours).

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  • 分子量相同时,聚醚为基础的PUU分离程度聚酯为基础PUU高。

    The polyether-based PUU shows the better phase separation than polyester-based with the same molecular weight of soft segment.

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  • 如果经济进一步通胀率进一步放缓,美联储则有可能相当长的时间按兵不动。

    At the same time, officials could stay on hold 'for quite some time' if the economy weakened or if inflation slows further.

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  • 丙烯酸改性乳化同时进行,其聚合物结构分布均匀;

    Soft and hard segments in polymer chains were well-distributed when acrylate modification and emulsification performed at the same time.

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  • 此外,高倍拉伸提高上述二类多共聚物结晶熔点结晶速率

    In addition, high draw ratio will increase the melting point and crystallization rate of the soft segments for both types of segmented copolymers.

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  • 拉伸倍率大于80 %时,NH基团发生取向,外力作用下,取向,取向较难

    NH groups Orient too when draw ratio is beyond 80%, which indicates that it is easy for soft segments but difficult for hard segments to Orient under the effect of outside force.

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  • 铜线变色(暗红发白):连续退火工作线还要经过冷却冷却才能达到出线

    Copper wire color (dark red or white) : continuous annealing in the work period of the line burn soft and pass cooling section after cooling can achieve lead not hot, without water.

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  • 研究表明:含量链长的提高离子基团的增加均有利于拉伸强度的提高。

    The results showed that increase hard segment content, soft segment sequence length and ionic group to be favourable for rising tensile strength.

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  • 实践证明,在榨油机附加一个带阻转套是实现油分、纤维含量油料榨油机中顺畅喂料的行之有效的方法。

    The feeding zone with a grooved bushing can work successfully out transport of the special soft oilseed with high oil content and low crude fiber content without other forced feeding sets.

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  • 脑膜转移表现紧贴于曲线样强化经常可以看到结节沉着于脑表面

    Leptomeningeal metastasis appear as enhancing curvilinear segments following the gyral convolutions often with small nodular deposits on the surface of the brain.

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  • 施工开工之前首先做好填挖方排水沟确保排水顺畅,的路堤优先进行处理。

    Before the construction sections start up, we should work the intercepting drain and barrel drain of the balanced sections well, to make sure the drainage unhindered.

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  • 把一片头递给助手拼接时,铅笔匆匆作上记号

    She made swift marks in soft red pencil, giving the strips to her assistant to splice and file.

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  • 把一片头递给助手拼接时,铅笔匆匆作上记号

    She made swift marks in soft red pencil, giving the strips to her assistant to splice and file.

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