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用Poly (?? 烯酸) 修改的Organobentonite的热稳定性

Beata Grabowska¹, Sylwia Cukrowicz¹, Karolina Kaczmarska¹

¹Faculty of Foundry Engineering, AGH-University of Krakow, Reymonta 23, 30059 Krakow, Poland.

Materials (Basel, Switzerland)

|May 27, 2023

概括

这项研究分析了一种新的bentonite和poly (?? 烯酸) 造业粘合剂. 复合材料具有热稳定性,只释放二氧化碳,表明它在工作场所使用是环境安全的.

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
环境科学环境科学

背景情况:

造厂粘合剂对于模具和核心生产至关重要.
传统的粘合剂可能会带来环境和健康风险.
有机矿复合材料提供了一个潜在的替代品.

研究的目的:

描述一种新型的托尼特-多聚烯酸 (SN/PAA) 复合物的热性能.
为了确定SN/PAA粘合剂的热稳定性和降解行为.
评估SN/PAA复合物的环境和工作场所安全性.

主要方法:

热分析包括热重力测量 (TG),衍生热重力测量 (DTG) 和差分扫描热量测量 (DSC).
热解气体染色学质谱学 (Py-GC/MS) 用于识别分解产品.
在各种条件下分析复合材料和组件的热分解.

主要成果:

该SN/PAA复合物表现出复杂的热分解与可逆的物理化学转换在230°C以下.
聚烯酸 (PAA) 的分解发生在230-500°C之间,而蒙特莫里隆石 (MMT) 的脱氧化始于500°C左右.
该SN/PAA复合物在氧化和惰性大气中表现出显著的热稳定性,性能优于一些有机结合剂.
300°C和800°C的排放量仅限于二氧化碳,没有检测到BTEX组化合物.

结论:

SN/PAA复合材料是一种热稳定的造业粘合剂.
该材料环保,由于有限的有害排放,对工作场所没有威胁.
这种有机矿结合剂代表了造应用的安全有效的替代品.

关键词:

班托尼特 (bentonite) 是一种石头.复合材料复合材料是一种复合材料.降解降解降解降解降解.造厂造厂是一个这是一种器官矿,也就是Organobentonite.聚烯酸) 是一种聚烯酸.

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