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研究硅灰石部分替代木浆抄纸时,硅灰石的加填对纸页强度性能的影响以及硅灰石的留着情况。结果表明,硅灰石的加入会导致成纸强度性能下降,但硅灰石在针叶木浆中加填量为35%时成纸强度性能均达到一般包装类用纸的标准,在阔叶木浆中加填量为30%时成纸强度性能均满足一般印刷类用纸及文化用纸的要求。硅灰石在木浆中的留着率较高,远高于其他常规造纸填料。
The effect of wollastonite filling on the strength properties of paper sheets and wollastonite retention was studied when part of wollastonite was replaced by paper pulp. The results show that the addition of wollastonite can lead to the decrease of the strength properties of the paper, but the strength properties of the wollastonite paper reached the standard of packaging paper when the wollastonite content was 35% in the softwood pulp, When the filling amount is 30%, the strength properties of the paper satisfy the requirements of general printing paper and cultural paper. Wollastonite retention in wood pulp is higher, much higher than other conventional papermaking filler.