DL930PA胶乳用作碱性水电解隔膜纸增强剂的研究

A study on DL930PA latex as a strengthening agent for alkaline water electrolysis separator paper

选择DL930PA胶乳作为增强剂,采用浆内添加方式,研究了DL930PA胶乳不同添加量对碱性水电解隔膜纸性能的影响。试验结果表明,浆内添加D L930PA胶乳,可明显提高碱性水电解隔膜纸的干、湿强度,但隔膜纸的吸碱率下降,面电阻有所提高。当添加量超过1.5%后,干、湿强度增加幅度趋缓。当添加量在1.5%以下时,隔膜面电阻与现有3m m无机纤维隔膜布基本接近。

Addition amount of DL930PA latex,a strengthening agent in pulping process,will inf luence the performance of separator paper in alkaline water electrolysis.The results showed that adding DL930PA latex in pulp is able to significantly improve the dry and wet strength of separator paper,but lower separator paper’s alkaline absorption rate and increase its surface resistance.When the DL930PA latex addition exceeds 1.5%,the growth of dry and wet strength turns to slow down.When the addition is below 1.5%,the surface resistance of separator paper is basically close to that of the 3mm inorganic fiber separator cloth.