自催化型萜烯基环氧树脂多元醇水分散体的制备与表征

doi:10.3969/j.issn.0253-2417.2019.01.003

林产化学与工业 ›› 2019, Vol. 39 ›› Issue (1): 23-28.doi: 10.3969/j.issn.0253-2417.2019.01.003

自催化型萜烯基环氧树脂多元醇水分散体的制备与表征

吴国民^1,^2,³,陈健¹,霍淑平¹,刘贵锋¹,金灿¹,孔振武^1,^2,^3,*()

1. 中国林业科学研究院林产化学工业研究所；生物质化学利用国家工程实验室；国家林业局林产化学工程重点开放性实验室；江苏省生物质能源与材料重点实验室, 江苏南京 210042
2. 南京林业大学江苏省林业资源高效加工利用协同创新中心，江苏南京 210037
3. 中国林业科学研究院林业新技术研究所，北京 100091

收稿日期:2018-09-09 出版日期:2019-02-25 发布日期:2019-03-14
通讯作者: 孔振武 E-mail:kongzwlhs@163.com
作者简介:吴国民(1982—)，男，副研究员，博士，硕士生导师，主要从事天然资源化学与利用研究
基金资助:
中央级公益性科研院所基本科研业务费专项资金重点项目(CAFYBB2017ZC005)

Preparation and Characterization of Self-catalyzing Polyol Dispersions from Terpinene-maleic Ester Based Epoxy Resin

Guomin WU^1,^2,³,Jian CHEN¹,Shuping HUO¹,Guifeng LIU¹,Can JIN¹,Zhenwu KONG^1,^2,^3,*()

1. Institute of Chemical Industry of Forest Products, CAF; National Engineering Lab. for Biomass Chemical Utilization; Key and Open Lab. of Forest Chemical Engineering, SFA; Key Lab. of Biomass Energy and Materials, Jiangsu Province, Nanjing 210042, China
2. Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China
3. Research Institute of Forestry New Technology, CAF, Beijing 100091, China

Received:2018-09-09 Online:2019-02-25 Published:2019-03-14
Contact: Zhenwu KONG E-mail:kongzwlhs@163.com
Supported by:
中央级公益性科研院所基本科研业务费专项资金重点项目(CAFYBB2017ZC005)

摘要/Abstract

摘要：

利用N-苄基乙醇胺(BEA)或二乙醇胺(DEA)改性萜烯-马来酐缩水甘油酯型环氧树脂(TME)，制备了分子结构中含有叔胺基团的自催化型萜烯基环氧树脂多元醇(TBP或TDP)。通过分析合成反应的影响因素，确定了制备环氧树脂基多元醇TBP和TDP的最佳反应条件：反应温度80 ℃，反应时间1 h，溶剂乙醇用量为反应物总质量的10%。采用傅里叶红外(FT-IR)光谱、核磁共振(NMR)光谱及凝胶渗透色谱(GPC)表征了环氧树脂基多元醇及其水分散体(WTBP或WTDP)的化学结构和相对分子质量分布，以激光粒径仪考察了中和度对多元醇水分散体粒径分布的影响。当中和度为90%时，多元醇水分散体(WTBP和WTDP)粒径为多峰分布，分散体稳定性较差；当中和度为100%时，水分散体粒径为单峰分布，达到纳米级分散。

关键词: 萜烯酯型环氧树脂, 自催化多元醇, 水分散体, 制备

Abstract:

Self-catalyzing polyol dispersions with tertiary amine groups (TBP or TDP) were prepared by reaction of terpinene-maleic ester based epoxy resin (TME) with N-benzylethanolamine (BEA) or diethanolamine (DEA). The tertiary amine groups in the polyol structure could catalyze the crosslinking reaction between hydroxyl group and isocyanate group in the crosslinking reaction of polyol dispersions and polyisocyanate to form two-component waterborne polyurethane. Suitable synthesis conditions were obtained by studying the effect factors of synthesis reaction. The optimum reaction conditions of the preparation of TME based polyols TBP or TDP were reaction at 80 ℃ for 1 h with using ethanol as solvent and the amount of ethanol was about 10% of the total quality of reactants. The chemical structures of the polyols were characterized by FT-IR and NMR and the average molecular weight of the polyoys was determined by GPC. The effect of neutralization degree on the particle size distribution of polyol dispersions was investigated by laser particle sizer. When the neutralization degree was 90%, the particle size distribution of polyol dispersions was multimodal and the stability of the dispersions was poor. However, when the neutralization degree was 100%, the particle size distribution of the dispersions was unimodal and achieved nanoscale dispersion.

Key words: terpinene-maleic ester based epoxy resin, self-catalyzing polyol, waterborne dispersion, preparation

中图分类号:

TQ35

吴国民,陈健,霍淑平,刘贵锋,金灿,孔振武. 自催化型萜烯基环氧树脂多元醇水分散体的制备与表征[J]. 林产化学与工业, 2019, 39(1): 23-28.

Guomin WU,Jian CHEN,Shuping HUO,Guifeng LIU,Can JIN,Zhenwu KONG. Preparation and Characterization of Self-catalyzing Polyol Dispersions from Terpinene-maleic Ester Based Epoxy Resin[J]. Chemistry and Industry of Forest Products, 2019, 39(1): 23-28.

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自催化型萜烯基环氧树脂多元醇水分散体的制备与表征

Preparation and Characterization of Self-catalyzing Polyol Dispersions from Terpinene-maleic Ester Based Epoxy Resin

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