聚酯型光致抗蚀剂合成方法的探讨

为了提高聚酯型光致抗蚀剂质量,我们通过合成方法的改进,结合凝胶色谱法测定产品的分子量分布,认为产品的分子量大小和分子量分布取决于所采用的合成方法,从而直接影响光刻胶质量。改进后的合成方法,在常压下可进行反应,降底了反应温度,大大缩短反应时间,並易于控制分子量大小,制得了分子量分布较窄而对称的产品。     

不饱和聚酯树脂改性砂浆的研究

不饱和聚酯树脂是一种反应性聚合物改性砂浆的添加剂。本文主要通过改变不饱和树脂的组成来改变其性质,并用它作为水泥砂浆的添加剂。通过改性试验,找出满足于不同使用要求的不饱和树脂,并用x—射线(XRD)和扫描电镜(SEM)等测试手段对不饱和树脂水泥砂浆的改性机理作了初步探索。     

H级无溶剂浸渍绝缘漆制备研究

以改性二苯醚树脂为原料，合成了一种新颖不饱和聚酯型无溶剂浸渍绝缘漆。它耐高温达到Ｈ级，固化速度快，贮存周期长，挥发率低。讨论了促进剂和挥发分抑制剂对无溶剂浸渍漆性能的影响，以及促进机理和抑制机理。结果证明了促进剂可以大大缩短固化时间，挥发分抑制剂在适当配比下，能够降低苯乙烯的挥发。     

耐高温导电原子灰的研究

采用高温缩聚法合成与制备了耐高温导电原子灰，研究了不同种类的二元醇、二元酸及填料对原子灰耐温 性、导电性、气干性、柔韧性和粘结力的影响。     

Heat Setting Technology for the Glove of Flexible Medical Orthosis

In order to meet the curative effect, the glove of the flexible medical orthosis was designed to use nylon/spandex and polyester/spandex covered yarns to knit the glove by parts. For the purpose of confirming the best heat setting technology of the glove knitted by multicomponent materials, different heat setting technologies with different temperature and time were tested on the nylon/spandex and the polyester/spandex knitted fabrics. And the effects of the heat setting technology on dimensional stability and elastic recovery of the two kinds of fabrics were analyzed as well. The results show that in the proper range of temperature and time, dimensional stability and elastic recovery of the nylon/spandex knitted fabric become better with the increases of temperature and time. And dimensional stability of the polyester/spandex knitted fabric also turns good. But its elastic recovery doesn＇t change obviously. All the measured values were compared with each other. And the results indicate that dimensional stability and dastlc recovery of these two kinds of fabrics both are great after the heat setting technology of temperature 180 ℃ and time 60 s.     

Pulsed UV Laser Modification of Polyester Textile Materials:Effect on Wettability

There has recently been great interest in ablative photodecomposition(APD), notably in pulsed UV laser treatment on polymers, for modification of physical and chemical properties, such as dyeability, printability, adhesion, Iuster and many more. Very little attention was focused, however, on the property of wetting behaviour,which is one of the most fundamental properties in affecting polymer science. Poly(ethylene terephthalate) (PET) fibers drawn to two different draw ratios and under two temperatures, and three white knitted polyester fabrics made of 100% PET fibre were used to investigate their wetting behaviour due to excimer laser treatment.Experiments like water contact angle measurement, vertical drop test and moisture regain were conducted upon samples and all results give the same conclusion that laser treatment increases the hydrophobicity of all samples tested. Scanning electron microscope (SEM) observation reveals how the morphological modification of polymers by laser treatment is correlate     

壳聚糖用于涤纶细旦复丝上浆的研究

采用过氧化物酸性溶液复合改性处理壳聚糖粉末的方法制成壳聚糖浆液,并测试其黏度、黏附力和渗透性.通过壳聚糖浆液对涤纶细旦复丝上浆和浆丝性能的评定,表明壳聚糖液可用于涤纶细旦复丝上浆,能够增加复丝强力和耐磨性能;壳聚糖浆液在保持流动性符合上浆要求基础上,壳聚糖分子较少降解对上浆有益.     

水溶性超支化光敏有机硅聚氨脂丙烯酸酯低聚物的合成

以三羟甲基丙烷(TMP)和N,N-二羟乙基-3-胺基丙酸甲酯为单体,通过“准一步法”合成三代超支化聚胺-酯(HBP-OH),再与羟烷基硅油、异佛尔酮二异氰酸酯(IPDI)、二羟甲基丙酸(DMPA)和丙烯酸-β-羟乙酯(HEA)反应,合成了三代水溶性超支化光敏有机硅聚氨脂丙烯酸酯低聚物(WHBPSUA)。研究了反应温度、DMPA用量等因素对合成反应和产物性能的影响,确定了最佳反应条件,并通过IR、¹H-NMR和GPC对超支化聚胺-酯及低聚物结构进行了表征。结果表明,三代超支化聚胺-酯(HBP-OH)最佳反应温度分别为120、130和135 ℃;DMPA和羟烷基硅油物质的量的比为1∶1时,所合成产物WHBPSUA具有良好的水溶性和成像性。     

超支化环氧树脂增韧增强双酚A型环氧树脂

采用一步法合成的低粘度液体型超支化环氧树脂HTDE-2增韧增强双酚A型环氧树脂．研究了HTDE-2含量对HTDE-2／双酚A型环氧杂化树脂力学性能和热学性能的影响．利用红外光谱、扫描电镜、热分析、动态力学分析和分子模拟技术讨论了超支化环氧树脂的结构、杂化树脂的性能和原位增韧增强机理．结果显示：杂化树脂的机械性能随超支化环氧树脂含量的增加先增加后下降，具有最大值；当HTDE-2的含量为9％左右时，杂化树脂的拉伸强度、弯曲强度、冲击强度和断裂韧性分别提高20．7％，14．2％，208．8％和74．9％，综合性能最好，但玻璃化转变温度和热分解温度有所下降．     

新型聚酯PEN的研究开发及应用

介绍了聚萘二甲酸乙二醇酯(PEN)的性能、应用、发展，为我国PEN的开发提供一些参考．