研究了N-酰化反应对壳聚糖溶解性能和结晶性能的影响以及反应时间,温度,配比对脱乙酰度的影响。
The effect of N acylation on the solubility and crystallinity of chitosan and the effect of reactive time, temperature and proportion on degree of deacetylation were investigated.
在硅酸盐水泥中,应用经过煅烧的石膏比二水石膏更能提高水泥的强度。为此,研究和分析了煅烧温度、保温时间对煅烧后的二水石膏在纯水中的溶解特性的影响。
The influence of the burning temperature and the time required for maintaining the temperature on the dissolution properties of various burnt gypsums is discussed and presented in this article.
实验结果表明,烧结温度对相层数量起主要作用,并和保温时间一起影响扩散溶解层厚度。
The results indicate that sintering temperature plays a prime role in the development of the number of phase layers and affects the thickness of diffusion solution layer by the thermal time.
分别考察了机械活化时间、温度及搅拌速度对壳聚糖溶解度和分子质量的影响。
The effects of different mechanical activating time, temperature and stirring speed on solubility and molecular weight of chitosan had been examined respectively.
适当增加压力、升高温度有利于均相体系的形成。剪切作用可提高气体的扩散性和溶解性,同时还可大大缩短均相体系形成所需要的时间。
Shearing may help the diffusion and dissolution of gas in the polymer, and thus may reduce the time for the formation of homogenous system.
另外还系统地试验了试样灼烧温度和灼烧时间对黑、白钨矿溶解率的影响。
The effects of ignition temperature and period of ignition on solubility of scheelite and wolframite have been investigated.
将羊毛纤维在不同温度的高温蒸汽中处理不同的时间,测试其拉伸性能及在碱中溶解度的变化,并对羊毛纤维在高温蒸汽中的颜色变化进行了目测评价。
Wool is treated in superheated vapor for different time. And then we test its stretch characters and alkali solubility while take its color changes into consideration.
研究了水处理温度、水处理时间及升温过程对水溶性维纶水溶解度的影响。
This paper studies the influences of water treatment temperature, water treatment time and the heat-up process on the water solubility of the water soluble vinylon fiber.
分析了酸性溶液中酸浓度、溶解温度、溶解时间和超声波作用对多组分磷酸盐玻璃化学浸蚀的影响。
The etching effect factors such as solution concentration, temperature, reaction time and ultrasonic stirring etc were also investigated.
分析了酸性溶液中酸浓度、溶解温度、溶解时间和超声波作用对多组分磷酸盐玻璃化学浸蚀的影响。
The etching effect factors such as solution concentration, temperature, reaction time and ultrasonic stirring etc were also investigated.
应用推荐