preparation of raw material的意思|示意

The raw materials, preparation process, properties and its influential factors of the special PE material for telecommunication cable heat shrinkable products were researched.

研究了通信电缆用热收缩制品聚乙烯专用料的原料、工艺流程、性能及其影响因素。

Methods The substance was synthesized from P-hydroxybenzoic acid through three steps, those are etherification, preparation of acyl halide and amidation of the raw material.

方法以对羟基苯甲酸为原料，经三步合成，即原料的醚化、酰氯制备和酰胺化。

Objective:With the local lobster shell as the raw material, we inquire into the abstraction and preparation of chitin and chitosan to develop a new raw material resources for chitosan.

目的：以地产龙虾壳为原料，探讨其甲壳素的提取和壳聚糖的制备方法，以开发壳聚糖制备的新原料资源。

MMA is selected as raw material of the preparation of MPOF. Compressed bulk free radical polymerization is adopted by means of analyzing polymerization method and polymerization mechanism.

制备MPOF的原料选用甲基丙烯酸甲酯(MMA)，通过对聚合方法和聚合机理的分析，确定采用加压本体自由基聚合技术。

The invention has the advantages of less varieties of the used raw materials, wide raw material sources and simple preparation method.

本发明所用的原料种类少、原料来源广泛，制备方法简单。

This paper introduces research results of preparation of silicate blocks with high strength fly ash using inferior fly ash as main raw material.

介绍以劣质粉煤灰为主要原料，制备高强度粉煤灰硅酸盐砌块的研究成果。