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- The measurement of carboxyl end group content in PBT was discussed with an automatic potentiometric titrator. 采用全自动电位滴定仪测定PBT切片的端羧基含量,对称样量、溶剂的配比、滴定剂的浓度等进行了正交优化。
- The carboxyl end group value control of Du pont's polyeser technology in direct spinning process is studied. 本文从工业生产的实践出发对杜邦聚酯技术直接纺工艺中端羧基控制进行了研究。
- The reasons for the carboxyl end group fluctuation of bottle grade PET base chips were analysed. 摘要对瓶用基片端羧基波动的原因进行了分析。
- It wasconcluded that the problem of carboxyl end group amount increase caused by the increase of loads will besolved through advancing the the loads in PET production process. 结论:可以通过工艺过程的负荷前移的方法,解决提高负荷而带来的端羧基含量升高问题。
- polystyrene containing carboxyl end group 端羧基聚苯乙烯
- Discussion on carboxyl end group control of bottle grade base chips 浅谈瓶用基片端羧基控制
- Keywords PET chip;carboxyl end group value;potential titrate; 聚酯切片;羧基值;电位滴定;
- Improvement on the determination methods of carboxyl end group value in fiber grade PET chip 纤维级聚酯切片中羧基值测定方法的改进
- Optimization the process parameters to control the carboxyl end group value in chips 优化工艺参数,控制切片中的端羧基值
- Industrial study of carboxyl end group value control of PET in direct filament spinning process 直纺长丝工艺中聚酯熔体端羧基值控制的工业研究
- Keywords potentiometric titrator;polybutylene terephthalate;carboxyl end group;orthogonal experiment;optimization; 电位滴定仪;聚对苯二甲酸丁二酯;端羧基;正交实验;优化;
- carboxyl end group 羧端基
- carboxyl end group value 端羧基
- Keywords Poly(butylene terephthalate)(PBT);hydrolysis resistance;carboxylic end group concentration;elongation at break; 聚对苯二甲酸丁二醇酯(PBT);抗水解;端羧基浓度;断裂伸长率;
- Recombinant human-like collagen with a hexahistidine tail attacked to the carboxyl end could be easily purified by Metal Chelated Affinity Chromatography(MCAC). 研究了应用金属螯合亲和层析法纯化重组类人胶原蛋白的条件。
- The structure was verified by 1H-NMR,GPC and end group titration techniques. 通过核磁共振氢谱(1H-NMR)、凝胶渗透色谱(GPC)、端羟基滴定等方法;研究了所合成的三嵌段共聚物的结构.
- And the IR analysis shows that silicone resin possesses hydroxyl end group. 红外光谱(IR)显示,合成的硅树脂含有端羟基。
- The dendrimers of amino as end group have no visbreaking effect on the crude oil. 端基为氮基的树状大分子对原油不具有降黏效果。
- Mechanical property test, end group analysis and SEM were adopted to study the ageing of PET and PBT composite... 采用拉伸强度与冲击强度测试、端基分析及扫描电镜分析等手段探讨了PET、PBT复合材料的老化机理和老化性能。
- The results show that the dendrimers of ester as end group have visbreaking effect on the crude oil. 5代树状长链酯对原油的降黏性能,分析了树状大分子的端基结构对原油降黏性能的影响。