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- Benzoxazine resin has expected mechanical performance,high thermal stability and gpod molecule design performance. 主要从合成方法、表征、固化机理、改性和复合材料性能方面介绍了近年来苯并嗯嗪的研究进展。
- MP1 and MP2 exhibited high thermal stability, while MP3 is not stable enough because of steric hindrance. 由于MP3的位阻较大,因而热稳定性能较差,而MP1和MP2都具有较高的热稳定性能。
- The bio-oil from xylan and lignin shows a higher thermal stability. 木聚糖和木质素生物油产量较低,表现出较好的热稳定性。
- Cubic borazon has been developed as an ideal hard abrasive due to its high hardness, high thermal stability and high chemical inertia properties. 立方氮化硼因其具有“三高”特性,而成为一种理想的硬磨料得以发展。
- This technique can potently compensate temperature drift properties of usual gas sensors,as a result,the instruments using these gas sensors have highly thermal stability. 该技术可以对常见气敏元件的温漂特性进行有效地补偿,从而使整机获得较高的热稳定性。
- Guanidinium ionic liquids are concerned mainly due to their high thermal stability, chemical stability and catalytic activity. 胍盐离子液体由于具有较高的热稳定性、化学稳定性和催化活性而受到关注。
- A modified phenol formaldehyde resin with high thermal stability was prepared from tung oil,maleic anhydride(MA)bismaleimide(ABMI),and phenol formaldehyde resin(PF). 以桐油、马来酸酐、双马来酰亚胺及酚醛树脂为基本原料,合成了具有较好耐热性的桐油酸酐酰亚胺酚醛树脂。
- S-PPESK exhibits good catalytic activity, excellent dimerization selectivity and high thermal stability in isobutene oligomerization.It is a promising resin catalyst. S-PPESK在异丁烯的低聚反应中表现出了良好的催化活性、优良的二聚反应选择性和很好的热稳定性能,其应用前景广泛。
- As a drug additive,polyvinyl alcohol(PVA) has merits of solubility,easy forming ,strong conglutination,high thermal stability,low toxicity and no irritation. 聚乙烯醇(PVA)作为药用辅料,具有易溶于水、成膜性好、粘接力强、热稳定性高、毒性低、无刺激性等优点,近年来,在医药工业中应用日趋广泛。
- EMACHN CH oils have high thermal stability and low carbon deposited formation tendencies for prolong lubricant life and low volatility resulting in less oil consumption. EMAchN ch具有高热稳定性及低结碳倾向与低挥发性,所以具有低油耗与使用寿命长的特性。
- These experimental results have well confirmed the highly thermal stability of photoelastic waveguide structures formed by W0.95Ni0.05 metal thin film in InGaAsP/InP heterostructures. 这些实验结果充分证明了由W0.;95Ni0
- PROPERTIES 1.Exeellent self - lubrication; 2.Remarkable chemical; 3. High thermal conductivity and thermal stability; 4.Acepuate mechanical stength and shock resistance; 5.Good machinability, may be machined into various geometry shapes on request. 1、优良的自润滑性;2、良好的抗化学腐蚀性;3、较高的导热率和热稳定性能;4、足够的机械强率和抗冲击要求;5、易于机械加工,可按要求加工成各种几何形状的产品。
- The results showed that, adding P into BN Mg system can obtain crystals without free carbon, while adding LiH and NH 4Cl into Li 3N BN system can obtain CBN crystals of high strength and high thermal stability. 研究表明 ,结晶介质成分和合成参数一样 ,对立方氮化硼结晶的完整性 ,杂质成分对晶体特性的影响起着重要的作用 ,指出 ,往BN -Mg体系中 ,引入P可培育出不含游离硼的晶体 ,而往Li3N -BN体系中引入LiH和NH4 Cl时 ,所得到的立方氮化硼具有高的强度和热稳定性。
- A new type of conductive polyaniline( PANI)doped by sulfonic acid with high thermal stability was obtained in a reaction medium containing organic bisulfonic acid as a dopant agent. 以有机二磺酸作为掺杂剂合成了具有高热稳定性的二磺酸掺杂导电聚苯胺。
- In the thermosetting system.several new functional curing agents with high thermal stability,flame retardancy,and good toughness and several new modified amine curing agents were introduced in detail. 在热固化技术领域,着重介绍了具有高耐热性、阻燃性、韧性等性能的几种功能性固化剂以及几种新型改性胺类固化剂;
- Compared with the SPI dispersions untreated with ultrasonic, the treated dispersions show higher thermal stability and gelling properties. 与未经超声处理的SPI分散液相比,经超声处理的分散液具有更高的热稳定性及凝胶性能。
- The rare-earth-zirconium composite oxides which have high thermal stability and high storage of oxygen are getting more and more attention in the automotive exhaust cleaning field. 摘要由于其良好的储放氧能力和热稳定性,以铈为主的铈锆氧化物在汽车尾气的处理中得到了越来越广泛的应用。
- Quartz has much potential to be developed as device because of its material properties including piezoelectricity, isolation, transparent, high hardness, and high thermal stability. 摘要:石英的材料特性包括压电性、绝缘性、透光性、高硬度、热稳定性高等,是一种极具发展为元件潜力的材料。
- In order to assure the orbital antenna have the higher thermal stability,it's necessary to carry on the analysis of factor influence for temperature under space environment. 为了保证星载天线在轨运行时有较高的热稳定性,就必须对其进行空间环境下的热温度场影响因素分析。
- Mg4Al2-hydrotalcite has highest thermal stability among several different forms of hydrotalcite, as is favorable to improve process capability.So it is worth studying. 镁铝水滑石具有多种不同的化学组成,其中Mg4Al2型水滑石脱水分解温度最高,有利于提高聚合物阻燃材料的加工性能,是镁铝水滑石阻燃剂的发展方向。