PVC无毒热稳定剂的研究开发进展

简述了PVC树脂的热降解机理,介绍了中国聚氯乙烯(PVC)热稳定剂主要品种稀土热稳定剂、有机锑稳定剂、金属皂类复合热稳定剂以及水滑石稳定剂的研究开发进展,指出了今后的发展方向。     

让花儿更靓丽 植物叶面光亮剂走俏

<正>立足时尚空白植物叶面光亮剂抢占商机2006年4月里的一天,吕恬将刚刚研制出来的植物叶面光亮剂和幻彩水晶在林太太家的七八盆花中试用,后来还邀了几位朋友去林家看效果。众人一进客厅便眼前一亮:“这些盆栽怎么每片叶子都那么光亮?”“这盆百合怎么没有泥土?”“那些五颜六色的是什么呀?”面对七嘴八舌的疑问,吕恬兴奋地介绍说:这些发财树和绿萝的叶子喷上了一种光亮剂;该剂采用国外专利工艺、由水溶性去污和亮光材料经高压乳化而成,既有去尘污、光亮、营养等多种功效。又安全环保。喷一次可保一年;用在百合上面的叫幻彩水晶,是多年流行于欧美、日韩和港台的时尚用品,用它替代泥土种花不用浇水,装在玻璃瓶里作点缀又极有品味。也再不用为护理花卉盆栽犯愁了。     

彩色水泥瓦光亮涂层剂

国内彩色水泥瓦光亮剂的湿涂工艺在施工性能和成膜质量方面还存在不少问题。喷涂应用实验基本上解决了起霜泛白、起皱、光亮度差等问题。     

调味乳酸菌饮料的研制

调味乳酸茵饮料是采用全脂鲜牛乳,经乳酸茵发酵后,加入甜味剂、稳定剂、有机酸、水、香精等调配成的产品.本文选用了羧甲基纤维素钠、海藻酸钠、磷酸氢二钠、黄原胶、果胶等作为稳定剂,通过实验确定了稳定剂的最佳配比和用量.并在此基础上调配了不同口味,以满足消费者的不同嗜好.     

混合蛋白饮品中复配稳定剂的应用分析

当前市场上各种混合蛋白饮品种类繁多,其中蕴含混合蛋白体系,为了有效提高混合蛋白体系的稳定性,需要合理选择稳定剂,单纯使用一种稳定剂往往难以达到理想效果,为了分析复配稳定剂在混合蛋白饮品中的应用,本文以大豆分离蛋白和浓缩乳蛋白为主要原料,综合分析卡拉胶、黄原胶、PGA3种稳定剂及其复配混合物对混合蛋白体系稳定性的影响,进一步综合分析混合蛋白饮品中复配稳定剂因素间的交互作用。最终得出结果为多种稳定剂合用,常用复配稳定剂包括卡拉胶、黄原胶、果胶、PGA、CMC以及海藻酸等,在此条件下制得的混合蛋白饮品稳定性良好,具有广泛的实际应用价值。     

速冻食品稳定剂应用研究进展

速冻食品在贮藏、运输和销售过程中,由于温度的波动,导致其风味和组织状态都会发生劣变,而稳定剂能够较好的保持速冻食品的风味和组织状态本文简述了速冻食品稳定剂在速冻食品中的应用研究进展.     

新型甘薯乳饮料的研制

对适宜于甘薯乳饮料的稳定剂进行了筛选实验。采用正交试验法对甘薯乳饮料的最佳工艺条件进行了研究。结果表明，采用由0．1％琼脂、0．1％黄原胶和0．1％CMC－Na构成的复合稳定剂的稳定效果较好。采用甘薯：水＝1：5，脱脂乳粉的添加量为2％，复合稳定剂的用量为0．45％和均质压力为30MPa的条件生产时，甘薯乳饮料的风味和产品稳定性较好。     

技术转让与合作 高分子化工

聚氯乙烯稀土复合稳定剂聚氯乙烯可以用作食品、医药和化妆品等的无毒、透明包装制品。目前国内外常用的聚氯乙烯稳定剂是有机锡,国内厂家使用的有机锡大部分是进口的。稀土复合稳定剂可替代部分有机锡,其生产的聚氯乙烯制品的热稳定性、透明度和雾度等指标都能达到要求,另外,该产品也可用于一般PVC制品如农膜、管、板等的制造。     

专利信息 无机化工

一种高品质不溶性硫磺的制备方法公开号CN 1462721A 公开日 2003.12.24申请人 中国科学院大连化学物理研究所 本发明是关于制备高品质不溶性硫磺的一种方法。具体的说,熔融聚合在250～350℃温度下进行。淬冷液为中性、弱酸性或含有机稳定剂的水溶液。固化在55—75℃。2.5—6.5 h内完成。所得到的不溶性硫磺采用复合稳定剂A及复合稳定剂     

乳化剂和稳定剂在冰淇淋加工中的应用

本文简单阐述了乳化剂和稳定剂在冰淇淋加工中的应用效果。     

Production costs for consolidated multibank holding companies compared to one-bank organizational forms

Economies of scale and scope for consolidated multibank holding companies (MBHCs) are examined with a translog cost function and are compared with one-bank holding companies (OBHCs) and independent banks. Empirical results indicate that costs curves are generally U-shaped for independent banks and OBHCs but are relatively flat for MBHCs. This evidence implies that banking organizations should prefer the MBHC to one-bank forms at higher output levels. Implications for bank regulatory policy and interstate banking are discussed.     

群时延失真对扩频通信性能影响的仿真与分析

首先简要介绍了卫星通信中扩频系统的基本模型和表达式，给出了系统在失真信道中进行计算机仿真的基本模型。然后，利用通信系统仿真软件包ACOLADE，建立了扩频系统在群时延失真信道中的仿真模型，建立了群时延失真信道模型，进行了QPSK、QPSK＋DS、QPSK＋FH等体制在群时延失真信道的特性仿_真分析，最后得出了一些有一定参考价值的分析结果。     

ROBUST PORTFOLIOS AND WEAK INCENTIVES IN LONG‐RUN INVESTMENTS

When the planning horizon is long, and the safe asset grows indefinitely, isoelastic portfolios are nearly optimal for investors who are close to isoelastic for high wealth, and not too risk averse for low wealth. We prove this result in a general arbitrage‐free, frictionless, semimartingale model. As a consequence, optimal portfolios are robust to the perturbations in preferences induced by common option compensation schemes, and such incentives are weaker when their horizon is longer. Robust option incentives are possible, but require several, arbitrarily large exercise prices, and are not always convex.     

Adolescent consumption autonomy: A cross-cultural examination

Adolescents are an important market segment globally not only for their spending power as adolescents but also for their future spending power as adults. One variable that impacts current and future spending power is the degree to which adolescents are autonomous consumers. This study reports on depth interviews conducted with adolescent girls in France and the United States for the purpose of identifying dimensions of adolescent consumption autonomy based on adolescents' perceptions. Four dimensions of adolescent consumption autonomy are identified, including attitudinal, emotional, functional and financial. Similarities and differences between the two cultures are discussed, and implications for marketing and future research are identified.     

适应市场就业需求的全日制硕士研究生专业学习及应对策略研究

简介了研究生学科、专业及其培养方案内容要求,分析了硕士研究生的学习心态、就业态度及市场择人条件,提出了就业应对策略。     

液雾泡沫型厨房清洗剂的开发应用

本文概述了液体厨房清洗剂的基本类型、性能特点和发展趋势,介绍了液雾泡沫型厨房清洗剂的配方构成、生产工艺,并对该项目的社会和经济效益进行了简单分析。     

Wellness in business education: The convergence of theory,practice, and lifestyle

The authors provide an initial integrative framework for understanding the large, diverse, and growing domain of wellness literature related to business education. The terminology, research, and typical outcome measures of three key perspectives—individual, organizational, and societal—are presented. In addition, current applications of wellness concepts in business education programs and courses are reviewed. The foundation and guidance needed for understanding the importance of and structure for teaching and researching wellness in business education are provided, as are specific conclusions and recommendations for the development of the field.     

Consumer responses to trade-offs in eco-friendly clothing: The moderating effects of fashion leadership and regulatory focus

Consumers of eco-friendly clothing often face trade-offs between eco-friendliness and other product attributes. Across two experiments, we investigate the moderating role of fashion leadership and regulatory focus in such trade-off situations. Our results suggest that while non-fashion leaders are willing to trade-off hedonic attributes for eco-friendliness, fashion leaders are not willing to trade-off either hedonic or utilitarian attributes. It is also suggested that prevention-focused fashion leaders are more likely than promotion-focused fashion leaders to trade-off hedonic attributes for eco-friendliness. Implications for practitioners as well as directions for future research are discussed.     

A framework for interactive multiple criteria group decision support

An interactive framework is developed for multiple criteria group decision support. Decision makers are asked to specify aspiration and reservation levels to establish a preferred range for the value of each objective for each decision maker. Group and individual solutions are generated as a function of these levels. Decision makers are asked to react to current solutions by revising their aspiration and reservation levels and additional solutions are generated. The framework is both simpler and more flexible than previous approaches.     

Women Entrepreneurs: A Comparison of International Small Business Owners in Poland and the Czech Republic

Women entrepreneurs from two Central European countries with relatively new market economies were interviewed for this research. The authors describe the experiences and motivation of these women international business owners and compare them to the literature on women entrepreneurs in North America. Cross-culturally, women entrepreneurs share many of the same motivations for starting a business, and experience similar challenges to making their enterprises successful. North American models of entrepreneurship are also examined. The findings suggest a universal model for entrepreneurship. Suggestions for government policies are put forward. Managerial and theoretical implications are also presented and new directions for research on women entrepreneurs are suggested.