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| Preparation of the Lignin Based Polyol from Calcium Lignosulfonate |
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| DOI：10.11981/j.issn.1000-6842.2011.03.49 |
| Key Words:calcium lignosulfonate; polyol; content of hydroxyl; viscosity |
| Fund Project:本课题得到国家高技术研究发展计划（863计划）资助项目（2002AA322050）、四川省生物质改性材料工程技术研究中心课题（09zxbk04）及生物质材料教育部工程研究中心开放课题（10zxbk09）资助。 |
| Author Name | Affiliation | | 周 建1,2 | 1.西南科技大学生物质材料教育部工程研究中心，四川绵阳，621010；2.四川大学轻纺与食品学院，四川成都，610065 | | 罗学刚1 | 1.西南科技大学生物质材料教育部工程研究中心，四川绵阳，621010 | | 刘一山1,3 | 1.西南科技大学生物质材料教育部工程研究中心，四川绵阳，621010；3.四川工商职业技术学院，四川都江堰，611830 |
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| Abstract: |
| The lignin based polyol was obtained through modification of calcium lignosulfonate with polyol in high temperature and high pressure, the reaction conditions were investigated. The results indicated that the content of hydroxyl and viscosity of product were 450~550 mg KOH/g and 500~1000 mPa·s, respectively, when the reaction took place at 170℃ for 2 hours with 20 parts calcium lignosulfonate and 100 parts polyol. In addition, the FT-IR showed that the etherification and esterification reactions existed between polyol and the activated calcium lignosulfonate which was generated at high temperature and high pressure. |
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