国内外MBS树脂的生产和应用开发状况

叙述了国内外（主要是日本）ＭＢＳ树脂之生产发展状况及应用开发动向，介绍了主要品种的特性和用途，指出ＭＢＳ树脂除用于ＰＶＣ的抗冲改性剂外，目前日本各公司已致力于ＭＢＳ树脂用作ＰＥＴ、ＰＢＴ和ＰＣ等工程塑料之改性剂的研究开发。     

国内外MBS树脂的生产和应用开发状况

叙述了国内外（主要日本）ＭＢＳ树脂之生产发展状况及应用开发动向，介绍了主要品种的特性和用途，指出ＭＢＳ树脂除用于ＰＶＣ的抗冲改性外，目前日本各公司已致力于ＭＢＳ树指用作ＰＥＴ、ＰＢＴ和ＰＣ等工程塑料之改性剂的研究开发。     

MBS树脂的生产状况及开发动向

ＭＢＳ树脂的生产状况及开发动向郭秀春（上海高桥石化公司化工厂，２００１３７）ＭＢＳ树脂系甲基丙烯酸甲酯（Ｍ）、丁二烯（Ｂ）和苯乙烯（Ｓ）的接枝共聚物，用于改性ＰＶＣ。由于它与ＰＶＣ的折光指数相近（ＰＶＣ为１．５２～１．５５，ＭＢＳ为１．５３５），是改...     

MBS树脂增韧性能研究

简要介绍了抗冲性剂ＭＢＳ树脂对聚氯乙烯的增韧机理,考察了ＭＢＳ树脂合成过程中影响增韧性的关键因子,并根据试验情况提出了控制方法,得到了增韧性估优异的ＭＢＳ树脂。     

乳液聚合法合成MBS改性剂

ＭＢＳ是甲基丙烯酸甲酯（ＭＭＡ）、聚丁二烯（ＰＢ）、苯乙烯（Ｓｔ）的共聚物。作为ＰＶＣ的改性剂,在使ＰＶＣ增韧的同时,保持了树脂原有的光学性能。ＭＢＳ的化学组成,粒径尺寸和颗粒结构等因素,都对ＰＶＣ／ＭＢＳ合金的性能有着重要影响。本文以种子乳液聚合方法合成出化学组成２５／６０／４２,粒径约为０．３μｍ的核－壳结构型ＭＢＳ改性剂,与ＰＶＣ共混,测定ＰＶＣ／ＭＢＳ合金的综合性能,均得到较好的数据     

SBS与不同增粘树脂相容性的研究

］采用扭辫分析（ＴＢＡ）和透射电镜（ＴＥＭ）研究了ＳＢＳ与萜烯树脂、松香树脂、Ｃ_５石油树脂、Ｃ_９石油树脂等增粘树脂的相容性     

增韧SMA的制备及与PC的共混改性

研究了ＳＢＳ增韧ＳＭＡ树脂体系,采用二次共混工艺,用１５％（质量）的ＳＢＳ可以很好地增韧ＳＭＡ树脂;用增韧的ＳＭＡ树脂与ＰＣ进行共混,考察了体系的力学性能和微观相结构,制备出综合力学性能良好、加工性能优于纯ＰＣ的共混材料。当增韧ＳＭＡ／ＰＣ为２０／８０时,共混材料的力学性能与纯ＰＣ相近,达到了预期改性ＰＣ的目的。     

EVM/NBR动态硫化共混物性能的研究

研究了橡胶型乙烯醋酸乙烯酯共聚物（ＥＶＭ）／ＮＢＲ共混比、硫黄和叔丁基酚醛树脂（２４０２树脂）硫化体系对共混物性能的影响，并对比了动态硫化和静态硫化共混物在性能上的差异。试验结果表明，ＥＶＭ／ＮＢＲ共混比显著影响共混物的力学性能，而采用ＮＢＲ预先动态硫化的方法后，共混物胶料的挤出口型膨胀率明显减小，老化性能得到改善，同时减弱了硫黄和２４０２树脂等硫化体系对ＥＶＭ硫化的影响，使多种硫化体系可以共存于共混物中。ＤＳＣ分析表明ＥＶＭ／ＮＢＲ动态硫化共混物只有一个玻璃化温度，且介于ＥＶＭ和ＮＢＲ之间，说明ＥＶＭ和ＮＢＲ具有良好的相容性。     

共混物IR/CR/苯乙烯类嵌段共聚物的结构与性能研究

选择苯乙烯－异戊二烯－苯乙烯嵌段共聚物（ＳＩＳ）、苯乙烯－丁二烯－苯乙烯嵌段共聚物（ＳＢＳ）和α－甲基苯乙烯－丁二烯－α－甲基苯乙烯嵌段共聚物（ＭＳＢＭＳ）３种苯乙烯类嵌段共聚物作为相容剂，通过理论预测和试验测试，研究了它们对ＩＲ／ＣＲ共混物网络结构和力学性能的影响。结果表明，加入ＳＩＳ，ＳＢＳ和ＭＳＢＭＳ可以明显提高硫化胶的弹性常数２Ｃ１和２Ｃ２以及拉伸强度，减小体系的损耗因子。３种共聚物的作用效果顺序为：ＳＩＳ＞ＳＢＳ≥ＭＳＢＭＳ。ＳＩＳ的最佳用量为３～７份。     

树脂传递模塑成型用高性能双马来酰亚胺改性树脂基体的研究

本文以烯丙基对甲酚醚（ＡＭＰＥ），作为双马来酰亚胺（ＢＭＩ）／二烯丙基双酚Ａ（ＤＡＢＰＡ）树脂体系的活性稀释剂，获得了适合树脂树脂传递成型（ＲＴＭ）工艺的三元共聚树脂体系。通过对该树脂体系及其固化物的粘度－温度－时间曲线，凝胶化特性、ＤＳＣ（微分扫描式量热）ＩＲ（红外光谱）、ＳＥＭ（电子显微镜扫描）和力学性能测试，表明该体系在ＲＴＭ成型 中，注射温度可取７０℃，该温度下，粘度仅０．３Ｐａ．ｓ，贮存     

风电叶片用真空灌注型环氧树脂及其复合材料性能研究

本文针对两种自制的风电叶片用真空灌注型环氧树脂体系EP-1和EP-2,研究了树脂的工艺性和力学性能,并选取单轴向和三轴向玻璃纤维织物,采用真空灌注工艺制备了复合材料层板,考察了复合材料在室温和高低温下的力学性能。结果表明,EP-2体系浸润性、流动性和韧性更好,但强度、模量和耐热温度略低;常温及-45℃下两种树脂基复合材料的力学性能相近,纤维/树脂界面粘结较强;50℃环境下,复合材料的压缩强度降低,受玻璃化转变温度偏低的影响,EP-2复合材料压缩性能降低更为明显;两种环氧树脂的工艺性和力学性能优异,与纤维匹配性好,满足风电叶片对树脂的性能要求。     

The effect of different ammonium structure of quaternary ammonium resin on the electrochemical properties

The quaternary ammonium resin is synthesized by the ring-opening reaction of an epoxy resin with a tertiary amine in the presence of a proton donor in the solution. This kind of resin can be dispersed in the water phase to form a conductible milky dispersion. In this study, different kinds of tertiary amines including the full-alkyl group and the ester group-containing or urethane group containing tertiary amine are reacted with DGEBA-type epoxy resin to synthesize the quaternary ammonium resins. The resin characteristics and the electrochemical properties of its emulsion are investigated. In addition, properties of the emulsion prepared from tertiary amine salt resin are also measured for comparison. It is found that if the substituted groups of the ammonium structure of the quaternary ammonium resin are all alkyl groups, rupture voltage of the emulsion is very low. But when one of the substituted group contains an ester group or an urethane group, rupture voltage increases remarkably and the resin can be used for electrodeposition. Meanwhile, the electrodeposition theory of quaternary ammonium resin and its thermal cross-linking reaction and the electrochemical properties of coemulsion prepared by mixing the quaternary ammonium resin and the tertiary amine salt resin are also discussed. © 1993 John Wiley & Sons, Inc.     

低成本高性能酚醛树脂基烧蚀材料的性能研究

本文对硼酚醛树脂、高残碳酚醛树脂、S-157酚醛树脂的固体含量、粘度、凝胶时间进行了表征和对比,此基础上对比研究了连续玄武岩纤维平纹布增强三种酚醛树脂复合材料的密度、硬度、导热系数,同时对三种复合材料的烧蚀性能和力学性能进行了测试和对比。研究结果表明：硼酚醛树脂复合材料的力学性能最好,S-157酚醛树脂复合材料其次,高残碳酚醛树脂复合材料的力学性能最差;在烧蚀性能方面,硼酚醛树脂复合材料和高残碳酚醛树脂复合材料相当,S-157酚醛树脂复合材料最差。     

酚醛树脂烧蚀性能研究进展

简单介绍了在酚醛树脂烧蚀性能的改进研究中硼酚醛、铝酚醛、磷酚醛、聚酚醚和酚三嗪树脂的烧蚀性能，也介绍了使用芳基酚、烷基酚与DA改性剂改进的酚醛树脂的烧蚀性能，以及开环聚合酚醛树脂和新型酚醛树脂S-157与S-158的主要性能。同时介绍了氯化磷腈改性酚醛树脂和提高酚醛树脂成炭率的其它改性研究。指出了改性酚醛树脂仍然是今后常规武器系统使用的一种低成本热防护材料的树脂基体。     

一种新型气干性不饱和树脂及原子灰

介绍了非气干性或半气干性基团的不饱和树脂在专有技术配套下生产出的原子灰及其各项性能。     

新型低黏度苯并口恶嗪树脂

介绍了1种新型低黏度苯并口恶嗪树脂,用旋转黏度计研究了这种树脂的黏度,用DSC和凝胶化时间测试等研究了其固化反应行为,并对树脂浇注体和复合材料进行了力学性能测试。实验结果表明,这种树脂具有良好的工艺性能和较高的力学性能,可作为树脂传递模塑成型RTM的高性能复合材料基体树脂或高性能封装用树脂。     

Effect of phenolic resin structure on the bonding properties of nitrile rubber-based adhesives

Three phenolic resins were used to study the effect of resin structure and its percentage content on the bonding properties of nitrile rubber-based adhesives. The phenolic resins studied are derived from phenol, resorcinol and para-t-butyl phenol, and are of novalac type. These resins were characterized by infra-red and thermal studies. Several formulations were prepared by varying the phenolic resin/nitrile rubber ratio and these formulations were tested for viscosity and bonding properties. At a given resin-to-rubber ratio, the viscosity for resorcinol-formaldehyde resin was higher than phenol-formaldehyde resin followed by para-t-butyl phenol-formaldehyde resin. The peel strength of nitrile rubber-based adhesive prepared from resorcinol-formaldehyde resin was higher than adhesives that from para-t-butyl phenol-formaldehyde resin followed by phenol-formaldehyde resin. The lap shear strength of nitrile rubber-based adhesive containing para-t-butyl phenol-formaldehyde resin was higher than of adhesives containing the other two resins. The trend observed in peel strength could be explained on the basis of hydrogen bonding between hydroxyl groups of phenolic resin (adhesive) and hydroxyl groups of the starch-coated canvas cloth (adherend), whereas the trend observed in lap shear strength could be explained on the basis of extent of linearity in the resin structure.     

湿法磷酸生产中常用的非金属材料:Ⅲ.热固性增强塑料

阐述热固性增强塑料的玻璃纤维、合成纤维、酚醛树脂、呋喃树脂、环氧树脂、不饱和聚酯树脂的性能;由其为原料制成的玻璃钢产品在磷酸工业中的应用。对在不同工况下使用的玻璃钢产品,其纤维和树脂胶的选用提出了看法。在磷酸工业中使用玻璃钢产品,只要选材得当,可满足生产要求。     

单组分氟碳涂料交联体系研究

以FEVE型氟树脂为成膜物,选用封闭异氰酸酯和氨基树脂两种不同类型的交联剂体系,研究了单组分氟碳涂料性能的差异性.结果发现,以封闭异氰酸酯为交联剂,所得涂膜的综合性能优于全甲醚化氨基树脂,其涂料具有更宽的烘烤条件和更长的贮存时间;而微量的有机锡催化剂能在一定程度上降低封闭异氰酸酯的解封温度,加快反应速率.     

Properties and Aggregate Structure of Unsaturated Polyester/Phenolic Resin Blends

In this study, unsaturated polyester resin (UP) is blended with resole type phenolic resin, co-crosslinking process performed and the resin blends show miscibility and interpenetration network (IPN) structure. Differential scanning calorimetry (DSC) and dynamic mechanical analysis (DMA) are employed to examine the aggregate structure of crosslinked network of the UP/phenolic resin blend. Tensile fractured sections of the resin blends are observed using scanning electronic microscopy (SEM) to shed light on their miscibility. Tensile and flexural tests were also conducted to examine the mechanical properties of the UP/phenolic resin blends. The results show that UP20/Ph80 and UP40/Ph60 resin blends have well-formed Interpenetrating Network (IPN) structures while phase separation is observed for UP60/Ph40 resin blend. Finally, thermal cure of UP80/Ph20 resin blend is incomplete, thus showing immiscibility. The mechanical properties of all resin blends at different mixing proportions deviate from a linear relationship and show a concave curve, indicating the non-additive effect of blending.