淀粉/PVAm在废纸箱再生浆造纸中的应用
PAPER SCIENCE & TECHNOLOGY(2002)
Abstract
废纸箱再生浆含较多的灰分和微细纤维,其总电荷大于麦草化学浆,但表面电荷小于后者。原淀粉与聚乙烯基胺(PVAm)的混合糊液对再生浆具有显著的纸力增强、助滤和助留效果。PVAm-3对绝干再生浆添加4%时,纸页的抗张强度增加值达到最大,为54.9%。PVAm-1和PVAm-3在添加量为3%时呈现最大助滤效果。混合糊液的添加能显著增加纸页重量。混合糊液的作用效果不仅与其用量相关,而且与原淀粉/PVAm的比例密切相关。
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