本色硫酸盐竹浆改性制备溶解浆工艺条件的探讨  

Discussion on the Modification of Unbleached KP Bamboo Pulp to Prepare Dissolving Pulp

作　　者：杨玲[1] 李文俊[1] 王修朋 杨汉[1] 吴超[1] 李宇[1] 罗燕[1] 

机构地区：[1]四川理工学院精细化工助剂及表面活性剂四川省高校重点实验室,四川自贡643000 [2]四川银鸽竹浆纸业有限公司,四川泸州646300

出　　处：《纸和造纸》2014年第6期1-4,共4页Paper and Paper Making

基　　金：精细化工助剂及表面活性剂四川省高校重点实验室开放基金项目(2013JXY04);四川省教育厅重大培育项目(14CZ0021)

摘　　要：以本色硫酸盐竹浆为原料，通过化学法与生物法相结合进行后续处理，提高浆粕α-纤维素含量、纯度等性能指标，满足黏胶纤维以及纤维素衍生物产品对浆粕的质量要求。实验着重研究了酶处理段酶用量及酶处理时间和过氧化氢漂白段的过氧化氢用量。结果表明，酶处理段的酶用量10～15IU·g^-1绝干浆、时间60min，过氧化氢漂白段的过氧化氢用量2．0％，本色硫酸盐竹浆经（OO）-XD-P—A处理，浆粕得率38.2％（对绝干竹片原料），α-纤维素含量94．6％，R18 95．4％，R10 93．3％，铁含量25mg·kg^-1，灰分0．09％，白度85．6％ISO，黏度450．7mL·g^-1，可满足黏胶纤维以及纤维素衍生物产品对浆粕的质量要求。Using unbleached KP bamboo pulp as raw material, the experiment applied chemical as well as biological method for the subsequent processing to improve the content of α-cellulose, purity etc, which fulfills the requirements of production of viscose fiber and cellulose derivative products. The study focused on H2O2 bleaching phase and enzyme treatment phase. The results indicated that the suitable conditions for xylanase treatment were： enzyme dosage 10-15 IU·g ^-1, time 60 min; the conditions for H2O2 bleaching were： H2O2 dosage 2.0%. By using OO-X-D-P-A processing to treat unbleached pulp, the performance of product bamboo pulp shows below： the yield reaches 38.2%（relative to bamboo）, the content of α-cellulose reaches 94.6%, purity of R18 is 95.4%, R10 93.3%, while iron content is 25 mg·kg^-1, ash content 0.09%, whiteness 85.6%ISO, and viscosity 450.7 mL·g ^-1.

关 键 词：硫酸盐竹浆 酶处理 过氧化氢漂白 溶解浆 

分 类 号：TS745[轻工技术与工程—制浆造纸工程]