改性奇托桑作为青改性剂的使用及其对青改性青修饰中的质性质的影响
Kamal Kumar1, Aman Chand2,3, Raj Kumar Singh2,4
1CSIR-Indian Institute of Petroleum, Dehradun, Uttarakhand, India. maurya@iip.res.in.
Environmental science and pollution research international
|September 9, 2024
概括
O-carboxymethyl chitosan (OCMC) 增强了矿的性能,提高了柔性和耐热性. 将OCMC与VG30结合符合VG40规格,为合成聚合物提供了具有成本效益的替代品.
科学领域:
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
- 聚合物化学 聚合物化学
背景情况:
- 使用合成聚合物进行传统的青改造导致储存稳定性差,相位分离和高成本.
- 奇托是一种具有氨基和基群的生物聚合物,显示出作为改剂和乳化剂的潜力.
- 现有的空气吹制备泥的方法导致其脆弱性和温度易感性增加.
研究的目的:
- 从酸盐中合成O-碳氧甲基基托 (OCMC).
- 评估OCMC作为VG10和VG30等级青的修饰剂的有效性.
- 通过使用OCMC来改善青的气质和机械性能.
主要方法:
- 合成O-碳氧甲基基托 (OCMC) 来自基托.
- 将OCMC (0.5-4.5重量%) 混合到VG10和VG30基石中.
- 改性的透性,软化点,粘度,可塑性,复合模量和相角的表征.
- 评价OCMC-SBS混合物对于路线阻力和剪切模量.
主要成果:
- 添加1.5%重量%的OCMC,以及硫,提高了柔性和透性,符合VG40的规格 (IS:73:2013).
- 在VG30中含有1.5%重量%的OCMC,增强复合模量达到76.517Pa,符合VG40规格.
- 在VG10中含有1.5%重量%的OCMC,增强复合模量达到64,454Pa,符合VG30规格.
- 微量添加0.25%重量%的SBS与OCMC显著改善了路阻力和剪切模量.
结论:
- OCMC有效地提高了VG10和VG30青的性能特性,使它们适合更高性能等级.
- OCMC提供了一个有前途的,可能更具成本效益和稳定的替代方案,以合成聚合物修饰剂为青.
- OCMC和SBS的协同效应进一步提高了青对和剪压的抵抗力.
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