聚乙烯酸的制备和性能 聚乙烯酸与乙烯酸乙烯酸改性粘合剂
Guoyan Ma1,2,3,4, Le Wang1, Xiaorong Wang5
1College of Chemistry and Chemical Engineering, Xi'an Shiyou University, Xi'an 710065, China.
Molecules (Basel, Switzerland)
|September 28, 2023
概括
乙烯基酸乙烯 (VV10) 修改了聚乙烯酸乙烯 (HVPVAc) 粘合剂,增强了机械性能和T-皮强度. 增加的VV10含量提高了拉伸强度和粘合性能,显示出更复杂的聚合物结构.
科学领域:
- 聚合物化学 聚合物化学
- 材料科学 材料科学 材料科学
- 粘合技术的技术 粘合技术
背景情况:
- 聚乙烯酸 (PVAc) 是一种广泛使用的粘合剂.
- 修改PVAc可以提高其特定应用的性能.
- 乙烯基酸盐 (VV10) 被探索为PVAc.的修饰剂.
研究的目的:
- 通过无肥乳液聚合合成VV10修饰的PVAc粘合剂 (HVPVAc).
- 描述结构变化并评估VV10含量对HVPVAc属性的影响.
- 评估机械强度和粘附性方面的性能改进.
主要方法:
- 无肥乳液聚合用于HVPVAc合成.
- 减弱总反射里埃变换红外光谱 (ATR-FTIR) 用于结构分析.
- 测量颗粒大小,粘度,抗拉强度,破裂延伸和T剥强度.
主要成果:
- ATR-FTIR证实了碳-碳双键的完整反应和形成更复杂的结构 (-C-O-C键).
- 增加VV10含量导致更大的颗粒大小 (63nm至221nm) 和增加乳粘度.
- 拉力强度从7 MPa增加到13.4 MPa,而断裂延伸度从1310%降低到1004%.
- 提皮强度从8.35N/mm显著提高到18.97N/mm,增加了30%的VV10.
结论:
- VV10的修改结果是一个更复杂的聚合物结构,增强机械性能.
- 经过修改的HVPVAc表现出更好的拉伸强度和粘合性能.
- VV10是开发高性能聚乙粘合剂的有效共体.
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