改性细菌纤维素/纳米氧化镁加固液增强纸质文献耐久性研究OA北大核心
Study on Improving the Durability of Aged Paper Documents by Silicification Modified Bacterial Cellulose/Nano-magnesia Oxide Reinforce Dispersion
以细菌纤维素(BC)为加固基材,经3-氨丙基三乙氧基硅烷(APTES)化学改性,并与纳米氧化镁(MgO)复配,制得硅烷化细菌纤维素/纳米氧化镁(APTES-BC/MgO)加固液,并应用于加固纸张耐久性研究.湿热老化过程中,APTES-BC/MgO加固纸张的机械性能始终高于BC加固纸张及未加固纸张.经过湿热老化30天,APTES-BC/MgO加固纸张的横向撕裂指数和横向抗张指数仍分别比未加固纸张高29.6%和27.1%,pH值和碱储量分别为7.56和0.25 mol/kg,白度变化与色差最小.老化纸质文献经APTES-BC/MgO加固后具有较好的耐久性.
Bacterial cellulose(BC)was used as the reinforcing substrate,chemically modified by 3-aminopropyltriethoxysilane(APTES)and compounded with nano-magnesium oxide(MgO)to produce silanized bacterial cellulose/nano-magnesium oxide(APTES-BC/MgO)rein-force dispersion,which were applied in the study of the durability of reinforced paper.The mechanical properties of APTES-BC/MgO rein-forced paper were always higher than those of the BC reinforced paper and the unreinforced paper during the wet-heat aging process.After 30 days of hygrothermal aging test,the transverse tearing index and transverse tensile index of APTES-BC/MgO reinforced paper were still 29.6%and 27.1%higher than those of the unreinforced paper,and the pH value and alkali reserves were 7.56 and 0.25 mol/kg,respec-tively,with the least whiteness change and colour difference.The aged paper reinforced by APTES-BC/MgO exhibited the excellent durability.
牟洪燕;张博尔;张红杰;吴潇;吴婷
华南理工大学轻工科学与工程学院,先进造纸与纸基材料全国重点实验室,广东 广州,510640华南理工大学轻工科学与工程学院,先进造纸与纸基材料全国重点实验室,广东 广州,510640中国制浆造纸研究院有限公司,北京,100102||制浆造纸国家工程实验室,北京,100102华南理工大学轻工科学与工程学院,先进造纸与纸基材料全国重点实验室,广东 广州,510640华南理工大学轻工科学与工程学院,先进造纸与纸基材料全国重点实验室,广东 广州,510640
轻工业
细菌纤维素硅烷化纳米氧化镁纸质文献耐久性
bacterial cellulosesilylationnano-magnesium oxidepaper documentdurability
《中国造纸》 2025 (6)
80-88,9
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