• The viscosity and hydroxyl value of PHPB synthesized under these conditions attained better level.

    在此条件合成出来PHPB的羟粘度达到较好的水平

    youdao

  • A method for determining hydroxyl value of epoxy-containing polyester, namely acetyl chloride method is introduced.

    介绍了环氧基聚酯的测定方法乙酰

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  • Acid value and hydroxyl value are two pieces of characteristic value of the purpose products and the experiment adopts the titrimetric law of acid and alkali to confirm them.

    目的产品特征值,实验采用酸碱滴定来确定两个特值。

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  • The changes of molecular weight, life under heat, acid value, hydroxyl value and chlorine content of lac resin during bleaching and de-chlorinating processes have been studied.

    本文研究紫胶树脂漂白过程分子量寿命、碘价、羟基含量变化情况。

    youdao

  • The changes of molecular weight, life under heat, acid value, hydroxyl value and chlorine content of lac resin during bleaching and de-chlorinating processes have been studied.

    本文研究紫胶树脂漂白过程分子量寿命、碘价、羟基含量变化情况。

    youdao

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