快干瓦楞纸箱淀粉粘合剂的研制

瓦楞纸箱的质量在纸质和加工工艺相同的情况下，主要取决于所使用的粘合剂。因此，粘合剂在瓦楞纸箱生产中起着关键性的作用。目前，我国大部分纸箱厂都是小型企业，没有烘干设备。所以，尽管用硅酸钠作瓦楞纸箱粘合剂具有碱性大、易吸潮泛碱、腐蚀性大等缺点，而且国家严格限制使用，但因硅酸钠具有价廉且干燥迅速的特点，大部分企业还是使用硅酸钠作粘合剂，而不愿意使用干燥速度相对较慢的淀粉粘合剂。     

粘合剂应用专题文摘

(1)瓦楞纸板用抗水淀粉胶配方及性能研究/韩永生,万丽丽摘要文本分析了玉米淀粉胶的组成及对其质量的影响,重点对粘合剂的防水性进行了研究,叙述了瓦楞纸板用抗水粘合剂的配制与工艺过程,并与常规方法制备的粘合剂进行了性能比较,测定了抗水时间,研究出了瓦楞纸板用抗水粘合剂的最佳配制比例。本研究是以玉米淀粉为原料,添加适量的脲醛树脂制备出的抗水淀粉胶,可以提高复合胶的初粘力和耐水性,缩短了干燥时间,用这种粘合剂生产的瓦楞纸板,其抗水性能得到进一步提高,可用于生产冷冻食品或有高湿环境使用要求的包装产品。(2)影响瓦楞纸箱淀粉…     

单面瓦楞机制造纸板用淀粉粘合剂的配制

瓦楞纸板是纸箱的半成品,因而纸箱的性能在很大程度上取决于瓦楞纸板的质量。瓦楞纸板的质量除原纸外,粘合剂的质量起着相当重要的影响,它直接影响纸板的抗潮,抗霉能力、纸板的挺度、剥离强度、戳穿强度及耐破度和纸箱的抗压强度等。目前淀粉粘合剂在我国已使用二十多...     

快干瓦楞纸箱用淀粉粘合剂的制作

瓦楞纸箱的质量在纸质和加工工艺相同的情况下,主要取决于所使用的粘合剂.因此,粘合剂在瓦楞纸箱生产中起着关键性的作用. 目前,我国大部分纸箱厂都是小型企业,没有烘干设备.所以,尽管用硅酸钠作瓦楞纸箱粘合剂具有碱性大、易吸潮泛碱、腐蚀性大等缺点,而且国家严格限制使用,但因硅酸钠具有价廉且干燥迅速的特点,大部分企业还是使用硅酸钠作粘合剂,而不愿意使用干燥速度相对较慢的淀粉粘合剂.因此,如何尽快研制出干燥速度和硅酸钠相当,且价格低廉的淀粉类粘合剂是亟待解决的问题.     

THE EFFECTS OF CORPORATE RESTRUCTURING ON AGGREGATE INDUSTRY SPECIALIZATION

It has been widely argued that the purpose of corporate restructuring during the 1980s was to produce a population of more industry-specialized, competitive firms in response to intensifying global competition. A number of studies show that corporate restructuring resulted in increased corporate focus during the 1980s. However, no study has yet examined whether corporate restructuring resulted in increased specialization at the industry level during the 1980s. This study examines this issue. First, we examine whether or not aggregate industry specialization increased during the 1980s. That is, we ask: did the average firm in any given U.S. industry become more or less specialized to that industry during the 1980s? Second, we examine whether corporate restructuring was a significant determinant of change in aggregate industry specialization during the 1980s. Using a sample of 686 four-digit SIC industries and 64 two-digit industry groups, this study finds that aggregate industry specialization declined very slightly at both the four-digit and two-digit level between 1981 and 1989. This study also finds that sell-offs of establishments through corporate control transactions or interfirm asset sales had no significant effect on aggregate industry specialization.     

THE EFFECT OF REPUTATION ON THE DECISION TO JOINT VENTURE

This paper focuses on the impact that reputation has on the decision to proceed with a strategic alliance. Employing reputation constructs adapted from the Fortune Corporate Reputation Survey, we manipulated a target firm’s reputation in an experimental design. The subjects were placed in the role of CEO of the partner firm and asked whether they would engage in the alliance. Findings indicate that (1) reputation is a multidimensional construct, (2) the personal information-processing characteristics of the decision-maker mediate the reputation effect and may suppress the reputation information, (3) subjects may compensate weaker elements of reputation for stronger ones when making decisions, (4) product and management reputation are the most important factors, and (5) reputation is a factor affecting the decision regardless of whether the proposed target is a supplier or a competitor. © 1997 by John Wiley & Sons, Ltd.     

通货膨胀对项目经济评价指标的影响

通货膨胀直接影响着物价总水平和存、贷款利率,势必对项目评价带来一定的影响。在通货膨胀的条件下以项目建议起点时的价格作为计算项目计算期各年的投入、产出和评价指标,并辅之以简单时价法和详细时价法,所得结果能与市场利率和一般贷款偿还期作比较。故是一种较好的办法。