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| Effects of Inorganic Fillers on the Properties of Bleached High Yield Pulp |
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| DOI：10.11981/j.issn.1000-6842.2017.01.12 |
| Key Words:high yield pulp; paper filling; filler retention amount; paper strength property; brightness reversion |
| Fund Project:国家十二五科技支撑课题(2012BAD23B02)。 |
| Author Name | Affiliation | | 胡嘉驹1,2 | 1.华东理工大学材料科学与工程学院,上海,200237；2.中国林业科学研究院林产化学工业研究所,国家林业局林产化学工程重点开放性实验室,生物质化学利用国家工程实验室,江苏省生物质能源与材料重点实验室,江苏南京,210042 | | 李 蔚1,* | 1.华东理工大学材料科学与工程学院,上海,200237 | | 房桂干2 | 2.中国林业科学研究院林产化学工业研究所,国家林业局林产化学工程重点开放性实验室,生物质化学利用国家工程实验室,江苏省生物质能源与材料重点实验室,江苏南京,210042 | | 沈葵忠2 | 2.中国林业科学研究院林产化学工业研究所,国家林业局林产化学工程重点开放性实验室,生物质化学利用国家工程实验室,江苏省生物质能源与材料重点实验室,江苏南京,210042 |
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| Abstract: |
| The effects of TiO,sub>2 and CaCO3 as fillers on the strength and optical properties of bleached high yield pulp (HYP) were investigated. It was shown that the tensile strength, bursting strength and bonding strength of the handsheets from HYP decreased in different degrees with the increment of the fillers. Comparing with the CaCO3, the sheet strength decreased smaller when TiO2 was used as filler. And the brightness, opacity and especially the light scattering coefficient of the TiO2-filled sheets were improved obviously. The same light scattering coefficient was obtained when the dosage of TiO2 was only one fourth of that of CaCO3. Furthermore, an obvious inhibition of brightness reversion of HYP was achieved by TiO2 filling, and the inhibition effect on brightness reversion increased with the increment of TiO2. The HYP brightness reversion was reduced by 76.4% when the TiO2 retention amount was 21.4%. Comparatively, the inhibition effect on the brightness reversion was weak for CaCO3 filling． |
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