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Softening Modification of White Mud Fibers and Its Papermaking Performance |
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DOI:10.11980/j.issn.0254-508X.2013.12.005 |
Key Words:white mud fibers soften CMC paper strength |
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Abstract:White mud fiber with brittleness characterise was modified by the self synthesized softener PVA-KH560,the changes of the fiber surface were observed by scanning electron microscopy (SEM). The modified and unmodified white mud fibers were separately mixed with plant fibers as papermaking furnish. The effect of application of the white mud fibers on paper properties was determined, and the effect of adding different concentration of CMC on dispersing of white mud fibers and the strength of white mud fiber or plant fiber composite paper were studied. The results showed that with increasing of the white mud fiber amount, the paper tensile strength, compressive strength decreased. The optimum dispersing concentration of CMC was 0.8%(based on weight). And the strength of paper added CMC was significantly improved. When the addition of white mud fiber was 30%, the tensile index and ring crush index increased by 40% and 42%, respectively. |
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