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林产化学与工业 ›› 2019, Vol. 39 ›› Issue (3): 101-107.doi: 10.3969/j.issn.0253-2417.2019.03.014

• 研究报告 • 上一篇    下一篇

高效桐油催干剂的制备及其催干性能研究

余云,杨宁宁,黄彬,杨焰,廖有为*()   

  1. 中南林业科技大学 材料科学与工程学院, 湖南 长沙 410004
  • 收稿日期:2019-01-27 出版日期:2019-06-28 发布日期:2019-06-26
  • 通讯作者: 廖有为 E-mail:248783659@qq.com
  • 作者简介:余云(1994-),女,河南信阳人,硕士生,主要从事桐油涂料研究
  • 基金资助:
    国家重点研发计划(2017YFD0600703-6);湖南省教育厅科学研究项目(17C1641);中科院可再生能源重点实验室开放基金项目(Y701k81001);湖南省林业科技计划项目(XLK201636)

Preparation of High-efficient Tung Oil Drier and Its Drying Performance

Yun YU,Ningning YANG,Bin HUANG,Yan YANG,Youwei LIAO*()   

  1. College of Materials Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China
  • Received:2019-01-27 Online:2019-06-28 Published:2019-06-26
  • Contact: Youwei LIAO E-mail:248783659@qq.com
  • Supported by:
    国家重点研发计划(2017YFD0600703-6);湖南省教育厅科学研究项目(17C1641);中科院可再生能源重点实验室开放基金项目(Y701k81001);湖南省林业科技计划项目(XLK201636)

摘要:

考察了4种催干剂异辛酸稀土(REI)、异辛酸钴(CI)、高效催干剂M2203和CQ-150B单独或配合使用时对桐油和聚合桐油催干性能的影响,结果表明:10℃时聚合桐油黏度为15 520 mPa·s,比桐油黏度(160 mPa·s)有明显增加;20℃时聚合桐油的干燥时间为72 h,较桐油干燥时间(168 h)明显缩短。异辛酸稀土和异辛酸钴单独使用时,催干效果明显低于M2203和CQ-150B;0.6%的异辛酸稀土与0.010%的异辛酸钴复配的复合催干剂,催干桐油的表干时间、实干时间分别为2和2.5 h,硬度等级为4H,附着力等级为1级;催干聚合桐油的表干时间、实干时间分别为0.67和1 h,硬度等级为5H,附着力为1级。与高效催干剂M2203和CQ-150B相比,复合催干剂色泽浅,与桐油相容性好。FT-IR和TG表征分析表明:复合催干剂催干制备的桐油漆膜交联度高、热稳定性好,该复合催干剂是一种性能优良的桐油催干剂。

关键词: 桐油, 异辛酸稀土, 异辛酸钴, 固化

Abstract:

The effects of four kinds of driers, namely rare earth isooctanoate(REI), cobalt isooctanoate(CI), high-efficient drier M2203 and CQ-150B alone or in combination on the drying performance of tung oil and polymerized tung oil were investigated. The experimental results showed that the viscosity of polymerized tung oil at 10℃ was 15 520 mPa·s and higher than that of tung oil(160 mPa·s). The drying time of polymerized tung oil at 20℃ was 72 h and shorter than that of tung oil(168 h). When 0.6% of REI was used together with 0.010% of CI, the surface drying time and hard drying time of raw tung oil were 2 and 2.5 h, respectively, the hardness grade was 4 H, and the adhesion grade was 1; the surface drying time and hard drying time of polymerized tung oil were 0.67 and 1 h, hardness grade was 5 H, adhesion was grade 1. Compared with the high-efficient drier M2203 and CQ-150B drier, the composite drier had light color and good compatibility with tung oil. FI-IR and TGA analysis showed that the tung oil paint film prepared by drying with compound drier had high cross-linking degree and good heat stability. So the compound drier was proved to be an excellent tung oil drier.

Key words: tung oil, rare earth isooctanoate, cobalt isooctanoate, curing

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