Study on High-ortho and High Molecular Weight Thermoplastic Phenolic Resin

Rui REN; Jiang-min DANG; Chun-ling Liu; Wen-sheng DONG

doi:10.14028/j.cnki.1003-3726.2011.07.014

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Study on High-ortho and High Molecular Weight Thermoplastic Phenolic Resin

更新时间：2022-09-18

- Study on High-ortho and High Molecular Weight Thermoplastic Phenolic Resin
- Polymer Bulletin Vol. 24, Issue 7, Pages: 82-89(2011)
- 作者机构：
  
  应用表面与胶体化学教育部重点实验室，陕西师范大学化学与材料科学学院，西安　710062
- 作者简介：
- 基金信息：
- DOI：10.14028/j.cnki.1003-3726.2011.07.014
  CLC：
- Published：2011-07，
  
  Received：20 October 2010，
  
  Revised：25 December 2010，
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Rui REN, Jiang-min DANG, Chun-ling Liu, Wen-sheng DONG. Study on High-ortho and High Molecular Weight Thermoplastic Phenolic Resin. [J]. Polymer Bulletin 24(7):82-89(2011)
DOI：

Rui REN, Jiang-min DANG, Chun-ling Liu, Wen-sheng DONG. Study on High-ortho and High Molecular Weight Thermoplastic Phenolic Resin. [J]. Polymer Bulletin 24(7):82-89(2011) DOI： 10.14028/j.cnki.1003-3726.2011.07.014.

摘要

改变传统合成工艺

在高温高压无催化剂条件下

合成了无金属杂质的高邻位高分子量热塑性酚醛树脂。考察了苯酚与甲醛加成缩合反应过程中原料种类、原料配比、反应温度及反应压力等因素对酚醛树脂结构性能的影响。通过软化点测试仪、核磁共振谱仪等研究了酚醛树脂合成过程中各个参数对酚醛树脂结构性能的影响。在酚／醛比为1∶0∙7、210℃、0∙7MPa、反应时间为1∙5h 的最佳工艺条件下

制备了软化点119∙5℃

邻对位值1∙92

游离酚含量1∙89%

收率90%

凝胶时间28s

流动距离1∙8cm 的高邻位高分子量热塑性酚醛树脂。

Abstract

The high-ortho and high molecular weight thermoplastic phenolic resin was synthesized by using formaldehyde and excessive phenol as reactants in the absence of catalysts under high pressure and high temperature conditions.The influences of various parameters such as reactant type

the ratio of raw materials

reaction temperature and pressure on the structure and properties of the resultant phenolic resin were investigated.The softening point

O/P (ortho/para) value

the content of free phenol

gel time and flow distance of the resins were analyzed.The high-ortho and high molecular weight thermoplastic phenolic resin with a softening point of 119∙5℃

O/P value of 1∙92

free phenol content of 1∙89%

a yield of 90%

gel time of 28s and flowing distance of 1∙8cm was successfully synthesized.

关键词

酚醛树脂高邻位高分子量

Keywords

Phenolic resinHigh-orthoHigh molecular weight

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