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一种无溶剂加工的耐低温的粘合剂

Xiaoming Xie^1,2, Yulian Jiang², Xiaoman Yao¹

¹School of Chemistry, South China Normal University, Guangzhou, 510006, PR China.

Nature communications

|June 12, 2024

概括

科学家们开发了一种新的无溶剂粘合剂,可以在极寒条件下工作,性能优于热融粘合剂. 这种超低温耐粘合剂为北极,南极和太空探索提供了持久的粘合.

科学领域:

材料科学材料科学材料科学
聚合物化学聚合物化学
粘附科学粘附科学粘附科学

背景情况:

由于低温,在极端环境如北极,南极和外太空中的粘附是具有挑战性的.
在这种情况下,现有的粘合剂往往会发生故障或降解,限制了探索和应用.

研究的目的:

开发一种新型无溶剂粘合剂,在超低温下具有特殊性能.
为了研究粘合剂低温耐受性和耐用性背后的机制.

主要方法:

开发一种无溶剂的粘合剂配方,其中包括聚氧甲和聚合物组件.
对粘附强度,有机溶剂稳定性和在低至196°C的温度下耐用性的实验性测试.
使用理论计算来了解聚氧甲和聚合物之间的相互作用能量.

主要成果:

开发的粘合剂在广泛的温度范围 (-196至55°C) 中表现出极好的粘合强度和稳定性.
证明了长时间的粘附效果 (>60天在 -196 °C),超过商业热粘合剂.
确定了强大的聚氧甲-聚合物相互作用能量是增强凝聚力的关键,抑制结晶和减少体积收缩.

结论:

实现了一个可扩展的,无溶剂的制造工艺,用于耐低温的粘合剂.
这种粘合剂在极端寒冷的环境中具有很大的实际应用潜力,包括极地地区和太空探索.
这些发现为设计用于具有挑战性的热条件的先进粘合剂提供了洞察力.

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