室温自交联含氟乳液的制备及涂膜性能(英文)

• 作 者: 秦总根 涂伟萍 夏正斌 沈良军
• 机 构: 华南理工大学化工与能源学院,华南理工大学化工与能源学院,华南理工大学化工与能源学院,华南理工大学化工与能源学院 广东广州510640,广东广州510640,广东广州510640,广东广州510640
• 出 处: 华南理工大学学报(自然科学版)
• 发表日期: 2005年02期
• 关键词: 乳液 自交联 含氟乳液 含氟单体 乳液聚合方法 成膜温度 玻璃化温度 涂膜性能 室温 涂膜厚度

采用半连续乳液聚合方法制备了一种室温自交联含氟乳液,对影响含氟乳液涂膜性能的因素如 N MA含量(质量分数,下同)、成膜温度、含氟单体的用量及涂膜厚度等进行了分析.采用DSC法对乳液涂膜 的玻璃化温度(Tg)进行了测定,用Wilhelmy方法对膜的表面性能进行了表征,并通过人工加速老化实验来 考察膜的耐老化性能.结果表明,所制得的乳液的性价比优于市场上的含氟乳液.

A semi-continuous emulsion polymerization method was used to prepare a self-crosslinking fluorine-containing emulsion at room temperature. Factors affecting the performance of the fluorine-containing emulsion coating such as NMA content (mass fraction, the same below), film formation temperature, And the thickness of the film were analyzed.The glass transition temperature (Tg) of the emulsion film was measured by DSC method, the surface properties of the film were characterized by Wilhelmy method, and the film resistance was investigated by artificial accelerated aging test Aging performance.The results show that the performance of the prepared emulsion is better than the fluorinated emulsion on the market.