固化过程

• Thermosetting resin / org - mmt nanocomposite , including exopy resin / org - mmt and phenolic resin / org - mmt , were prepared by in situ intercalation polymerization , and the intercalation and exfloliation behaviour of them were characterized by x - ray diffraction ( xrd ) , dynamic mechanical thermal analysis ( dmta ) , and different scanning calorimetry ( dsc )
  采用原位插层聚合法通过浇模固化成型制备了热固性树脂蒙脱土纳米复合材料，并用xrd ， dmta ， dsc等手段研究了热固性树脂与有机蒙脱土的插层与剥离行为，并对固化过程进行了理论预估。
• It requires compatible part and support materials , subject to the constraints of the deposition and removal processes . the constraints on part and sacrificial support materials were identified and a compatible material combination was developed : unsaturated polyester and wax . some other investigation is conduct , such as the effect of additive on the cure of polyester , the effect of the filling on strength and shrinkage . the part strength is determined both by the bulk material properties of the part materials and by their interlayer bonding
  从分析材料的选择机制出发，本文经过大量的实验分析，选择了一组较好的材料组合：不饱和聚酯树脂与蜡的组合，通过实验分析了引发剂、促进剂对其固化过程的影响以及填料对其强度和收缩率的影响，通过测试，分析了材料的粘接强度，为工艺实现提供重要依据。
• It is discovered that the diameters of silicon rubber decrease and the number of silicon rubber increase by the dc electric pre - stress applied during solidifying of silicon rubber - toughened epoxy resins . the effect is independent of the polarity of electric pre - stress , but it is dependent of the intensity of electric pre - stress
  本文通过实验研究证实：在硅橡胶改性环氧树脂的固化过程中所施加直流预电应力导致了固化物中硅橡胶相数量增多、尺寸减小；并且，预电应力的这种效应与预电应力的极性无关，但与预电应力的水平有关。
• In addition , it is found that dc electric field weakens the effect of release agent and strengthens the binding strength between epoxy resins and anode in the condition of the existence of release agent . but this effect of electric field is not discovered between epoxy resins and cathode
  另外，本文通过实验研究还证实：在有脱模剂存在的情况下，固化过程中直流电场的存在会弱化脱模剂的作用进而强化环氧树脂固化物与金属正电极间的粘接强度，但直流电场对环氧树脂固化物与金属负电极间的粘接强度没有明显影响。
• Polar polymers tend to separated from upr and make system form co - continuous structure , which make for shrinkage compensation . big difference of glass transition temperature ( tg ) between upr and lpa and a tg below the cure temperature is preferred , because there is more time and more efficient for microvoid formation of cured sample
  极性较大的lpa在固化过程中更有利于从upr相中分离出来，形成有利于补偿收缩的两相交互连续的形态结构，而玻璃化温度与upr的差别大且低于固化温度的lpa ，则使得固化试样形成微孔的时间长和效率高。
• In the study of the effect of electric field on the binding property of copper foil - covered veneer sheet , because of lack of experimental method and the complexity of the object studied , it is not found the regular effect of electric field on the binding strength between copper foil and veneer sheet or on the inter - laminar binding strength of veneer sheet . but it is further testified that dc electric field makes the free linkage generated during solidifying of epoxy resins orient along the direction of electric - power line
  在直流电场对覆铜箔板粘接性能影响的研究中，由于受实验手段和研究对象复杂性的限制，没有发现直流电场对覆铜箔板铜箔与基体及基体层间的粘接强度产生规律性影响，但在研究中进一步证实了直流电场会使环氧树脂在固化过程中形成的交联键沿电场方向取向。
• Thermoplastic phenol - formaldehyde resin bond synthesized by solution po1ymeization is commonly used in making diamond grinding wheel , which has disadvantages such as : absorbing moisture , difficult mixing , can not being long term store , needing curing agent , and giving off dangerous gas
  目前，金刚石树脂砂轮普遍采用溶液聚合热塑性酚醛树脂作结合剂，此结合剂存在著易吸潮结团、混料困难、不易长期存放，需加固化剂才能固化，且固化过程中有大量的有害气体溢出，使用时需要加工成粉末等缺点。
• As the content of vermiculite minerals increased , the content of the " intercalated " shape , in which crystal gallery breadth was about of 40nm , also increased . in the curing reaction processing of polybenzoxazine / vermiculite hybrid nanocomposites intercalated with bisphenol a type precursor . according to the content of vermiculite minerals , while different shape of crystal was forming , these crystals were retarding the heat ring - opening polymerization of bisphenol a type precursors in the nanocomposites
  通过对双酚a型ben蛭石纳米插层物固化过程的分析：不同蛭石含量的插层物，在形成不同纳米分散状态固化结构的过程中，蛭石晶片对双酚a型ben的热开环聚合有明显不同的阻碍作用，蛭石含量为3的插层物160的凝胶化时间较纯树脂的延长约7min ，活化能高约8kj mol ，固化反应热晗低约14j g ，使得固化物的固化程度较纯树脂低约10 ，阻碍作用最大，其它含量的次之。
• Abstract : new progress of raman technique in the research on macromolecule science recent years was summarized in this paper including the miscibility of polymer blends , the mechanism of surface plasticization , the monitoring of stress and strain relaxation process , raman imaging , the monitoring of polymerization , determination of curing process , the monitoring of crystal process in polymer and the study on the structure of water and intra - and inter molecular interactions in the solution of polymer and gelatin . a great deal of research of raman technique in this aspects were also summarized
  文摘:综述了拉曼技术在高分子科学研究中近年来的最新进展，包括聚合物共混物的相容性、表面增塑机理、应力松弛和应变过程的监测以及拉曼成像、聚合反应监控、固化过程监测、聚合物结晶过程监控、聚合物水溶液和凝胶体系中水的结构及分子间、分子内相互作用力的研究。