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双语推荐：耐黄变

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论述了黄原胶水溶液的耐温抗盐机理以及流变特性，并针对黄原胶的生物稳定性差、热氧降解快、成本高等缺点，详细综述了黄原胶的添加剂、交联体系和疏水改性研究现状，以期促进耐温抗盐型黄原胶体系在油田开发中推广使用。
Summarizes the research progress of the heat and salt resistance mechanism and rheological properties of xanthan solution. But low biological stability,easy to heat oxygen degradation and high cost limit its application. To promote the application of the heat resistance and salt-tolerant type of xanthan sys-tem in oilfield development,xanthan was reviewed with adding additives,crosslinking reaction and hydro-phobic modification.

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汽车涂装后形成的涂层,既要具备较好的外观装饰效果,又必须具有优良的防护性能,而在实际使用过程中,常因涂层老化而发生的黄变,严重影响了其原有的性能要求。文章分析了涂层老化黄变的原因,对比分析了几种面漆的耐老化性能,并提出提高涂层耐黄变性能的措施。
The paint coating of automobile should not only have good exterior decoration effect, but also excellent protection performance. However, the automotive paint is yellowing with the aging of the paint while in service. It seriously affect its original performance. This paper analyzes the reasons of the aging and yellowing of the paint coating. Then it makes a comparison on several automotive paints’ ageing resistance. Finally, it proposes the measurements to improve the aging resistance.

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用正交实验法探讨了添加抗氧剂对ASA树脂耐黄变性的影响,并获得最佳抗氧剂组合。实验结果表明,抗氧剂均能在一定程度上减轻ASA在高温混炼过程中的黄变,其中受阻酚类抗氧剂S1、亚磷酸酯类抗氧剂168和自由基捕获剂类抗氧剂对ASA的黄变改善效果最明显。复合使用抗氧剂效果明显高于单一抗氧剂,效果最好的抗氧剂组合为0.15%S1,0.15%168,0.02%自由基捕获剂。本文研究结果对ASA塑料的加工应用有一定的参考意义。
The yellowing resistance effects of antioxidants on ASA resin was discussed by orthogonal experimental method, and the most efficient combination of antioxidants was obtained. Experimental results indicated that yellow resistance effect of ASA resin was reduced by adding of the antioxidants, and hindered phenol S1, phosphite ester 168, radical scavenger showed better effect than the others. And yellow resistance effects of combination antioxidant were better than the singles. The most efficient antioxidant combination was S1 0.15%,168 0.15%, radical scavenger 0.02%.The results of this paper provided a valuable reference to processing and application of ASA resin.

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以E51环氧树脂和自制耐黄变环氧固化剂为主要成膜物,研制了一种无溶剂环氧磨石专用地坪涂料,并对骨料的选择、物料配比、施工工艺等进行了探讨。
A special solventless epoxy terrazzo floor coatings was developed by E51 epoxy resin and home-made epoxy curing agent with resistance to yellowing as mainly binders. The choice of aggregates,paste ratio and application technology were discussed in this article.

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简述棉用平滑剂TF-4897C的合成与乳化工艺,讨论了整理织物后的手感和黄变,并研究了产品的化学稳定性和复配稳定性,研究结果表明TF-4897C与市场同类产品相比,具有良好的平滑柔软手感和低黄变性能,具有优良的耐高温、耐高剪切、耐酸碱盐等化学稳定性以及与增白剂、固色剂、涂料、活性染料等的复配稳定性,具有广阔的市场前景。
The synthesis and emulsification of the slipping agent TF -4897C was description.The feel and yellowing of the treated fabric was discussed and chemical stability and complex stability were studied.The results showed that TF -4897 C compared with the similar products in the market , had good soft and smooth feel and low yellowing properties , excellent high temperature resistance , high shear resistance , and chemical stability , such acid , basic and some salt.At the same time, it can be used with many auxiliaries such as brightening agent , fixing agent, coating, and reactive dyes.TF-4897 C had broad market prospects.

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阐述的水性协同效应疏水/耐黄变技术主要是采用纳米高比表面积氧化硅、混相氧化钛、氧化锌复合相，接枝改性，与氟碳树脂基成膜剂混合，使纳米粒子分布在体系中产生协同效应，纳米粒子在光的作用下产生电子跃迁，表现出对紫外光的反射和吸收，达到对浅色高分子材料耐黄变的作用，纳米粒子和氟碳树脂产生的组装二元协同效应达到在不同鞋面上的疏水、拒油作用。
Water-based synergistic effects for water drainage and non-yellowing technology stated in this article, mainly adopts nanometer high surface area silica,miscible titanium oxide,and zinc oxide compound phase to be graft modified, and mixed with fluorocarbon resin film formers, to make nanoparticles distribute in the system and have synergistic effect, nanoparticles can cause electronic transition in the effect of light, show the reflection and absorption of ultraviolet light, reach for light color polymer material yellowing resis-tance, nanoparticles and fluorocarbon resin assembly binary synergies achieves the effect of hydrophobic and oil-repellent in different vamp.

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氨基硅油是有机硅油中的重要品种，氟原子的引入是提高氨基硅油性能的有效手段。本文简述了含氟丙烯酸酯单体的合成、氨基硅油的接枝改性方法。通过Michael加成接枝氟单体所得最终改性氨基硅油乳液具有良好的防水、防油、耐黄变及稳定性能。
Amino silicone oil is an important variety of organic silicone oil. The introduction of fluorine atom is an effective method to improve the performance of amino silicone oil. In this paper, the synthesis of fluorinated acrylate monomer and graft modification of amino silicone oil were described. The grafting of fluorine monomer modified amino silicone oil emulsion by Michael addition. And Modified amino silicone oil emulsion has a good waterproof, oil proof performance, yellowing resistance property and emulsion stability.

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以六亚甲基二异氰酸酯（HDI）、聚醚多元醇（PPG）及3，3’-二氯-4，4’-二氨基二苯基甲烷（MOCA）为主要原料，采用2,4）-法制备一种无溶剂型双组分耐黄变PU胶粘剂。通过傅立叶红外（FT—IR）和差热扫描（DSC）对其结构及性能进行分析。讨论了PPG、MOCA含量及双组分配比对PU胶粘剂性能的影响。结果表明，采用低分子质量的PPG能显著地降低胶粘剂的黏度，胶粘剂的固化速率随MOCA（交联剂）含量的增加而显著提高；固化后的胶粘剂具有良好的耐化学药品性、耐低温性和耐黄变性。通过DSC曲线确定了固化后胶膜的Tg为46．1℃。
With hexamethylene diisocyanate (HDI),polyether polyol (PPG) and 3,3’-dichloro-4,4’-diaminodiphenylmethane (MOCA) as main raw materials,a solvent-free two-component anti-yellowing polyurethane adhesive was synthesized by two-step method.The structure and performance of the polyurethane adhesive were characterized by FT-IR and DSC,and the influences of some factors (such as PPG,MOCA and weight ratio of A component to B component) on polyurethane adhesive properties were discussed.The results show that the PPG with low molecular weight can obviously decrease the viscosity of adhesive;the content of crosslinker is inversely proportional to the curing speed of adhesive.The chemical résistance,durable yellowing and low temperature resistance of the polyurethane adhesive that had cured are all great.The glass transition temperature (Tg) of cured adhesive film is 46.1℃.

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为摸清津巴布韦特色烤烟品种KRK26烘烤特性,以烤烟品种云烟97为对照,研究了暗箱条件下和烘烤过程中KRK26上部烟叶变黄和失水变化规律及烤后烟叶经济性状。结果表明,暗箱条件下KRK26变黄速度快,失水速度稍慢,易发生褐变;烘烤过程中KRK26叶绿素降解速度快且彻底,类胡萝卜素降解相对较慢,类叶比大,变黄速度快,易变黄,变黄特性好,但也易于变褐,不耐烤;烘烤变黄前期和干筋期失水速度快,变黄后期和定色期失水相对稍慢,失水特性中等;KRK26失水速度相对落后于变黄速度,二者协调性稍差,烤后烟叶青杂烟比例较高,易烤性和耐烤性均略差。变黄期采用低温变黄的方法,变黄前期降低干湿球差控制烟叶失水,变黄后期和定色前期增加排湿力度,可调节烟叶失水和变黄协调性,有利于提高KRK26烘烤质量。
Leaf curing characteristics of flue-cured tobacco variety KRK26 introduced from Zimbabwe was investigated with a control variety Yunyan97. The changes of yellowing, browning and moisture removal under dark condition, pigment degradation, the rate of water lose during curing process were studied, as well as the economic characters of cured tobacco leaf. The results showed that KRK26 leaf yellowing was faster, water loss was lower, easy to browning under dark condition;The chlorophyll degradation speed of KRK26 was fast, the carotenoid pigment degradation speed was low during curing process, contents of chlorophyll degradation thoroughly after curing, the ratio of chlorophyll and carotenoid was high, the speed of yellowing was fast, the yellowing characteristics was better with easy to browning; dehydration characteristics was medium, the water loss rate was slow in early yellowing stage, while the yellowing rate was relatively fast. The water loss rate became slower in late yellowing st

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介绍了液态透明胶在触摸屏中的应用。它主要用于电容式触摸屏中触控模组与显示模组的贴合，起到填充、固定、提高对比度等作用。制备了一种液态光学透明胶（Liquid Optical Clear Adhesive-LOCA），重点研2究了其光学性能、固化性能和耐老化性能；结果表明，所制备的液态透明胶在3000 mJ/cm的固化能量下可以完全固化，黏度适用于各种贴合工艺；其透光率在99%以上，黄变指数和雾度小于0.2%，且具有优异的抗老化性能。
The main application of liquid optical clear adhesive(LOCA) in the capacitive touch screen was introduced, including the laminating of touch panel with LCD module and playing the role of fixing, filling and contrast enhancement.The LOCA was preparaed and its optical property, curing property and environmental reliability were studied. 2Results show that the LOCA has completely cured under the energy of 3 000 mJ/cm . The LOCA with a moderate viscosity can be used for various laminating process. The transmittance is over 99%, while the yellowing index and haze are less than 0.2. The LOCA also has a excellent environmental reliability.

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