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林产化学与工业

林产化学与工业 ›› 2009, Vol. 29 ›› Issue (3): 47-52.

• 研究报告 • 上一篇    下一篇

高抗冻性油墨用二聚酸基醇溶聚酰胺树脂的性能研究

黄坤1,2, 夏建陵1,2, 李梅1,2, 王定选1,2   

  1. 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 南京 210042;2. 中国林科院 林产化工研究所 南京科技开发总公司, 江苏 南京 210042
  • 收稿日期:2008-05-07 修回日期:1900-01-01 出版日期:2009-06-30 发布日期:2009-06-30
  • 通讯作者: 夏建陵,研究员,从事天然资源化学利用研究;E-mail:xiajianling@126.com。

Performance of Dimeric-acid-based Alcohol-soluble Polyamide Resins Used for High-gelling-resistant Printing Inks

HUANG Kun1,2, XIA Jian-ling1,2, LI Mei1,2, WANG Ding-xuan1,2   

  1. 1. Institute of Chemical Industry of Forest Products, CAF;National Engineering Lab.for Biomass Chemical Utilization; Key and Open Lab.on Forest Chemical Engineerign, SFA, Nanjing 210042, China;2. Nanjing Science & Technology Development Corporation, Institute of Chemical Industry of Forest Products, CAF, Nanjing 210042, China
  • Received:2008-05-07 Revised:1900-01-01 Online:2009-06-30 Published:2009-06-30

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摘要： 通过熔融缩聚法用二聚酸和异弗尔酮二胺(IPDA)等单体合成了一系列油墨用聚酰胺树脂,力学性能测试和差示扫描量热法(DSC)显示,IPDA制备的聚酰胺具有较高的邵氏硬度和剪切强度,但熔点(Tm)和玻璃化转变温度(Tg)有不同程度的降低。随着共聚二元胺单体中IPDA-乙二胺(EDA)比例的升高,聚酰胺树脂醇溶液的冻点逐渐降低,而软化点则先降低后升高。IPDA和二聚酸制备的聚酰胺(1009I)的软化点为 103℃,其 40% 固含量正丙醇溶液在 25℃ 的黏度 208mPa·s,玻璃化转变温度为 44.2℃,邵氏硬度79,拉伸剪切强度 14.64 MPa,溶解度参数17.87×10-3 (J·m-3)1/2,能够溶于正丙醇、四氢呋喃和乙酸正丁酯,但IPDA不能提高聚酰胺树脂在乙醇中的溶解性。其 20% 正丙醇溶液的冻点达到-35℃,具有良好的抗冻性。

关键词: 聚酰胺, 二聚酸, 异弗尔酮二胺, 冻点, 溶解度参数

Abstract: A series of polyamide resins used for printing inks were synthesized by condensation polymerization of dimeric acid with isophorone diamine (IPDA) and other monomers. Results of differential scanning calorimetry (DSC) showed that polyamides prepared from IPDAhavehigher Shorehardness and shearing strength but lower melting point (Tm) andglass transition temperature (Tg).With the increase of IPDA:ethyl diamine (EDA) ratio,gel point of the alcoholic solution of polyamide decreased,while softening point decreased firstly, then increased. The softening point of polyamide (1009I) prepared from IPDA and dimeric acid was 103℃, the viscosity of its 40% solution in 1-propanol was 208 mPa·s at 25℃, and Tg 44.2℃, Shorehardness 79, shearing strength 14.64MPa, and solubility parameter 17.87×10-3(J·m-3)1/2. Polyamide 1009I is soluble in 1-propanol, tetrahydrofuran and n-butyl acetate. Gel point of its 20% n-propyl solution is -35℃, showinggoodgelling-resistance. However,IPDA can not improve the solubility of polyamide resin in ethonal.

Key words: polyamide, dimeric acid, isophorone diamine, gel point, solubility parameter

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