薛 玉,杨桂花,陈嘉川.酶处理对沙柳P-RC APMP性能的影响[J].中国造纸学报,2012,27(2):14-17 |
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酶处理对沙柳P-RC APMP性能的影响 |
Effect of Enzyme Pretreatment on the Properties of Salix Psammophila P-RC APMP |
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DOI: |
中文关键词: 沙柳P-RC APMP 聚木糖酶处理 漆酶/介体处理 漆酶/聚木糖酶处理 |
Key Words:Salix Psammophila P-RC APMP pulp properties SEM XRD |
基金项目:本课题得到国家自然科学基金(30972326,31070525)、973计划前期研究专项(2011CB211705)和山东自然科学基金(ZR2010CM065,ZR2011CM011)的资助。 |
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中文摘要: |
研究了沙柳P-RC APMP进行酶处理后浆料性能的变化。结果表明,与空白样相比,聚木糖酶处理、漆酶/介体处理和漆酶/聚木糖酶处理对浆料光学性能的影响各不相同,浆料裂断长分别降低了9.5%、0.8%和6.7%,耐破指数分别降低了11.0%、4.1%和13.8%,撕裂指数分别提高了8.3%、8.0%和1.3%;扫描电镜观察发现,聚木糖酶处理后浆料纤维表面细纤维化程度变大,漆酶/介体处理后浆料纤维表面比较光滑,并出现部分表皮大块脱落的现象,与前述纤维相比,漆酶/聚木糖酶处理后的纤维分丝帚化程度最高;X射线衍射分析发现,酶处理后浆料纤维素的结晶度均下降,分别降低了6.0%、5.9%和2.4%。 |
Abstract: |
The effect of enzyme pretreatment on the properties of Salix Psammophila P-RC APMP was studied. The effects on optical properties of the pulp from pretreated Salix Psammophila by xylanase, laccase medium and laccase /xylanase were all different, the breaking length of the pulp reduced by 9.5%, 0.8% and 6.7%, and the bursting index reduced by 11.0%, 4.1% and 13.8%, the tearing index improved by 8.3%, 8.0% and 1.3% respectively compared with the pulp from unpretreated new material. X-ray diffractometer analysis indicated that the crystallinity of the cellulose reduced after enzyme pretreatment. |
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