Preparation and Characterization of Aldehyde-free Adhesives with Different Treatment Methods

Hang-zhong LIU; Li-ping DAI; Huai-min GUAN; Li-qing QIU

doi:10.14028/j.cnki.1003-3726.2019.11.006

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Preparation and Characterization of Aldehyde-free Adhesives with Different Treatment Methods

更新时间：2022-09-05

- Preparation and Characterization of Aldehyde-free Adhesives with Different Treatment Methods
- Polymer Bulletin Vol. 32, Issue 11, Pages: 47-52(2019)
- 作者机构：
  
  1.武夷学院生态与资源工程学院，福建省竹材工程技术研究中心，福建省生态产业绿色技术重点实验室，武夷山 354300
  2.福建师范大学化学与材料学院，福建省高分子材料重点实验室，福州 350007
- 作者简介：
- 基金信息：
- DOI：10.14028/j.cnki.1003-3726.2019.11.006
  CLC：
- Published：20 November 2019，
  
  Received：01 July 2019，
  
  Revised：25 September 2019，
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Hang-zhong LIU, Li-ping DAI, Huai-min GUAN, Li-qing QIU. Preparation and Characterization of Aldehyde-free Adhesives with Different Treatment Methods. [J]. Polymer Bulletin 32(11):47-52(2019)
DOI：

Hang-zhong LIU, Li-ping DAI, Huai-min GUAN, Li-qing QIU. Preparation and Characterization of Aldehyde-free Adhesives with Different Treatment Methods. [J]. Polymer Bulletin 32(11):47-52(2019) DOI： 10.14028/j.cnki.1003-3726.2019.11.006.

摘要

以不同处理法制备无醛蛋白胶粘剂，探究不同处理剂、不同交联剂、蛋白质种类、不同尿素浓度及不同蛋白质与硫脲配比对无醛蛋白胶粘剂的胶接强度、热性能、耐水与耐候性及冻融稳定性的影响。采用万能材料试验机、差示扫描量热仪及旋转流变仪进行测试与表征。结果表明：选择制备无醛蛋白胶粘剂的蛋白质为乳清蛋白，处理剂中改性效果最好的是尿素溶液，浓度为3mol/L、交联剂硫脲为9g、木质素钠为4.5g、乳液为10g，且乳清蛋白与硫脲以30 : 9配比时，乳清蛋白胶粘剂的粘度适中，冻融稳定性佳，胶接强度最好，达到1758.2MPa。另外，蛋白胶的耐水性皆良好，个别耐候性不达标。

Abstract

In this thesis

aldehyde-free adhesives were prepared by different treatment methods. The influence factors

including treatment agents and its concentrations

crosslinking agents

varieties of proteins and its ratios of protein and thiourea

were investigated by universal material testing machine

differential scanning calorimeter and rotary rheometer. The properties of bonding strength

thermal properties

water and weather resistance and freeze-thaw stability were explored. The results show that the best protein type is whey protein and the concentration of the best treating agent of urea solution is 3mol/L and the mass of crosslinking agent of thiourea is 9g and the mass of sodium lignin is 4. 5g and the the mass of emulsion is 10g and its ratio for protein with thiourea is 30 : 9. Whey protein adhesive has moderate viscosity and good freeze-thaw stability and the best bonding strength

reaching 1758.2MPa. In addition

all the adhesives of water resistance is good

except for some poor weather resistance.

关键词

无醛蛋白胶胶接强度耐水性冻融稳定性

Keywords

Aldehyde-free adhesiveThe bonding strengthWater resistanceFreeze-thaw stability

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