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一种基于花色素-多多巴胺-桑坦的新型生物粘合剂,用于玻璃,纸板和织品
Jessica Costa1,2, Maria Camilla Baratto1,2, Daniele Spinelli3
1Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via Aldo Moro 2, 53100 Siena, Italy.
Polymers
|July 13, 2024
概括
研究人员使用聚多巴胺和桑坦开发了一种基于奇托桑的新型粘合剂,实现了卓越的粘合力和耐水性. 这种可持续的替代品的性能优于商业粘合剂,并具有阻燃性能.
科学领域:
- 材料科学 材料科学 材料科学
- 生物化学 生物化学
- 聚合物化学 聚合物化学
背景情况:
- 基于石油的粘合剂带来环境风险,需要可持续的替代品.
- 奇托是一种天然的多糖,具有粘合能力,但缺乏足够的抗水性.
- 聚多巴胺增强了奇托桑的粘合性.
研究的目的:
- 开发一种基于酸盐的新型粘合剂,具有增强的粘合性和防水性.
- 为了研究聚多巴胺和交叉连接剂对奇托桑的协同作用.
- 评估新的粘合剂与商业替代品的性能.
主要方法:
- 在pH值4.5.5下使用Trametes versicolor*中的乳糖酶合成聚多巴胺.
- 基托-多多巴胺-桑坦粘合剂的配方,度不同.
- 粘合剂配方的多技术表征.
- 玻璃,纸板和织基板的机械测试.
- 对抗水和阻燃性进行评估.
主要成果:
- 一种含有3%奇托,50%聚多巴胺和3%香甘的配方显示出显著改善的粘合性能.
- 优化的粘合剂在水中保持粘合力长达10小时.
- 在纸板和织品的机械测试中发生了材料破裂,而不是粘合剂故障.
- 所有测试的配方均表现出阻燃性质.
- 新的粘合剂配方在比较测试中表现优于商业合剂.
结论:
- 开发的奇托-多多巴胺-桑坦粘合剂为以石油为基础的粘合剂提供了可持续和高性能的替代品.
- 该配方具有出色的粘附性,耐水性和阻燃性.
- 这种新型粘合剂在各种行业中具有广泛的应用潜力.
相关概念视频
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Polyesters are commonly prepared from terephthalic acid and ethylene glycol; the crude product is known as poly(ethylene terephthalate) or PET. However, polyesters are synthesized industrially by transesterification of dimethyl terephthalate with ethylene glycol at 150 °C. The two reactants and the polymer...
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