通过正交实验考察了反应时间、反应温度对聚乙烯醇酯化程度的影响。
The influence of reaction temperature and reaction time on degree of esterification were investigated.
探讨了PET酯化、聚合生产过程对熔体直接纺丝的影响。
The effect of PET production on melt direct-spinning is discussed .
当采用釜式间歇甲酯化反应时，浓硫酸为适宜的催化剂。
When a stirred tank batch process is used, the appropriate catalyst is sulphuric acid.
该工艺合成的蔗糖多酯平均酯化度为6．5以上，产品得率达90％ 以上。
The average ester degree is 6.5 and yields are greater than 90%.
该工艺合成的蔗糖多酯平均酯化度为6．5以上，产品得率达90％ 以上。
The average ester degree is 6.5 and yields are greater than 90%.
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