改性剂

• And reached the following specific conclusions : rubber content with the increase of resistance to ageing rubber modified asphalt increased ageing after less than for low - temperature service , the quality of reduced losses , soften point increase needle into a normal degree . summed up the aging asphalt and modified asphalt laws made spent rubber for asphalt modified agents , the principles of the size options and dosage of rubber powder for spent rubber modified asphalt road asphalt in the application provided a good technical support
  得出了随胶粉含量的增加胶粉改性沥青的抗老化性能提高,老化后低温延度比减小、质量损失量减小、软化点提高,针入度呈正态分布及改性沥青老化的规律,提出了废胶粉用作沥青改性剂时粒径选择和掺量确定的原则,为废胶粉改性沥青在公路沥青路面中的应用提供了良好的技术支持。
• ( 2 ) the influence of content of sbs on the temperature sensitivity , performance under high temperature , anti - crack ability under low temperature , elasticity , anti - aging ability of substrate asphalt is studied . the influence of content of sbs on the water - stability , property under high temperature and anti - crack ability under low temperature of asphalt mixture is also researched . the suitable content of sbs is 6 %
  ( 2 )研究了改性剂用量对沥青的温度敏感性、高温特性、低温抗裂性、弹性及耐久性的影响,同时研究了改性剂用量对沥青混合料的水稳定性、高温特性和低温抗裂性的影响,认为6 %的sbs加入量比较适合。
• To the montmorillonite , we fistly treated it by two kinds of modifiers ( d1630 and bs - 12 ) in the experiment . by measuring contacted angle , the effects of the both methods of modification are compared . then these two org - montmorillonites were added in pvc and pvc / montmorillonite composites were prepared with melt interaction
  对于蒙脱土，我们首先采用了两种改性剂d1630和bs - 12进行了有机化处理，通过观察悬浮性和接触角的测定，比较了改性效果并确定了最佳的改性方案。
• The influence of the material composites factors , such as fiber volume fractions , fiber aspect ratio , cementitious - sand ratio and the admixture for interface tailoring , on the properties of pva - dfrccs is studied . these properties that have investigated include workability , mechanical properties , deformability and durability
  研究并分析了材料组成参数( pva纤维体积率、纤维长径比、界面改性剂和砂灰比等)对高强高弹pva纤维增强水泥基材料( pva - dfrcc )的工作性能、力学性能、变形性能及耐久性的影响。
• The result showed that ( 1 ) organic modifier can reduce the polarity of na - bentonite , and compatilizer ( maleic anhydride grafted polyethylene ) can strengthen the polarity of polyethylene and the interface compatibility between polyethylene and bentonite . when the number of methylene groups in alkylamine was larger than 16 , the intercalation nanocomposites were obtained
  研究结果表明， （ 1 ）有机改性剂能够降低钠基膨润土的极性，相容剂（马来酸酐接枝聚乙烯）对增强聚乙烯的极性，增强聚乙烯和膨润土的界面相容性有很大作用。
• In attempt to prepare and investigate the novel high - performance electrically conductive polymer composites , the binary and multicomponent electrically conductive nanocomposites as well as the combined nano and in - situ composites were prepared with polypropylene ( pp ) served as the matrix , expanded graphite ( eg ) as a conductive filler , nylon 66 ( pa66 ) as a modifier , and maleic anhydride grafted polypropylene as an eg intercalater and the compatibilizer of pp - pa66 , based on the state - of - art development in the realm of polymer / inorganic nanocomposites and polymer / polymer in - situ composites domestically and overseas . the main outcomes are obtained as follows : 1
  本论文以制备和研究新型高性能聚合物导电复合材料为目的，跟踪和借鉴国内外在聚合物无机物纳米复合、聚合物聚合物原位复合领域的最新研究成果，制备和研究了以聚丙烯( pp )为基体、膨胀石墨( eg )为导电填料、尼龙66 ( pa66 )为改性剂、马来酸酐接枝聚丙烯( gpp )为eg插层剂和pp ? pa66增容剂的二元及多元导电纳米复合材料和纳米复合与原位复合组合复合材料，取得了以下主要研究成果： 1
• Through the research on the crystallite of the composites modified with silicone coupling agent and pp - g - mah , research showed that the size of the crystallite and oriented crystallization had obviously influence on the mechanical performances . the sem results showed that nano - sio2 was dispersed well in pp , which promoted the matrix undergo shear yielding rather than brittle fracture
  通过对硅烷偶联剂?马来酸酐接枝聚丙烯共聚物作为界面改性剂改性pp微晶的研究，表明微晶尺寸变化与复合材料的力学性能有关；在界面附近形成择优取向的结晶层，促使基体发生屈服变形，提高了复合材料的韧性。
• A new type of metal welding gas cooperatively developed by wuhan university chemical industry research acaddemy and aviation technology research office of wuhan shidai of science has achieved the substantial examination of state patent bureau , which is a favorable opening for the hard development of more than 2000 acetylene production plants and meanwhile has solved a series of problems that the new patterend welding gas of the same kind can cut while cannot weld the fuel gas and has slow startup , large oxygen consumption , narrow scope in choosing materiels and difficulty in filling the modifier with pressure , etc
  武汉大学化工研究所和武汉时代科学院航空技术研究所联合研制的一种新型金属焊割气已获国家专利局实质性审查，这对我国2000多家乙炔生产厂家的艰苦该是一个良好的开端，同时也解决了同类新型焊割气能割不能焊燃气起步慢，耗氧量大，选用母材窄，改性剂不易带压灌装系列问题。