Preparation of Emulsion Acrylate with High Solid Content and Low Viscosity and its Use in Sealants

Gui-hua LI; Jun-shen LIU; Shuo YANG; Yi LIU; Qing-qing LIU; Xun-yong LIU; Qiao-feng YANG; Yi-zheng LIU

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Preparation of Emulsion Acrylate with High Solid Content and Low Viscosity and its Use in Sealants

更新时间：2022-09-18

- Preparation of Emulsion Acrylate with High Solid Content and Low Viscosity and its Use in Sealants
- Polymer Bulletin Vol. 27, Issue 7, Pages: 51-60(2014)
- 作者机构：
  
  1.鲁东大学化学与材料科学学院，烟台　264025
  2.东华大学材料科学与工程学院，上海　201620
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2014-07，
  
  Received：22 May 2013，
  
  Revised：26 December 2013，
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Gui-hua LI, Jun-shen LIU, Shuo YANG, Yi LIU, Qing-qing LIU, Xun-yong LIU, Qiao-feng YANG, Yi-zheng LIU. Preparation of Emulsion Acrylate with High Solid Content and Low Viscosity and its Use in Sealants. [J]. Polymer Bulletin 27(7):51-60(2014)
DOI：

Gui-hua LI, Jun-shen LIU, Shuo YANG, Yi LIU, Qing-qing LIU, Xun-yong LIU, Qiao-feng YANG, Yi-zheng LIU. Preparation of Emulsion Acrylate with High Solid Content and Low Viscosity and its Use in Sealants. [J]. Polymer Bulletin 27(7):51-60(2014) DOI：

摘要

利用过硫酸铵-亚硫酸氢钠氧化还原引发体系制备了固含量为55%的丙烯酸乙酯、丙烯酸异辛酯、丙烯酸、甲基丙烯酸甲酯的共聚物种子乳液；以上述乳液为种子，十二烷基硫酸钠和辛基酚聚氧乙烯醚为乳化剂、碳酸氢钠为缓冲剂，过硫酸钾为引发剂80 ℃下制备固含量在70%〜74%的高固含量、低黏度稳定乳液。种子乳液呈现多元分布、乳胶粒粒径约为150〜300nm，增长后高固含量乳液仍保持宽分布、平均粒径大小在350〜600nm，黏度在剪切速率20s

-1

时为600〜900mPa•S。此乳液做成的密封胶固化时间短，收缩率小，强度大。

Abstract

The poly (ethyl acrylate/2-ethylhexyl acylate/acrylic acid/methyl methacrylate) seed emulsion with solid content at 55% was prepared by ammonium persulfate-sodium bisulfite redox reaction. Then

a high solid content and low viscosity emulsion in which the solid content from 70% to 74% was obtained using the seeded emulsion as medium

sodium dodecyl sulfate and octylphenol polyoxyethylene ether as emulsifier

sodium bicarbonate as buffer and potassium persulfate as initiator to polymerize the target emulsion at 80 ℃. The results indicated that the obtained seed emulsion was broad peak in particle size

the particle diameter was 150〜300nm

which led to its low viscosity. The high solid content emulsion with a viscosity of 300〜900mPa•s at a shear rate of 20s

-1

was still wide distribution and the particle diameter was 350〜600nm. The sealant was made from the high solid content emulsion having advantages of short curing time

small shrinkage

great intensity.

关键词

高固含量低黏度种子乳液密封胶

Keywords

High solid contentLow viscositySeed emulsionSealant

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