Dispersion of sealant elastomer
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I want to create an adhesive sealant with good resistance to moisture and heat. However, after adding thermoplastic elastomers, the film strength and elasticity decrease. Do any of you have any relevant experience to share?
Consider it from two aspects: 1. Solving the fragmentation problem; 2. Interface compatibility issues
Can you be more specific? I used a high-speed disperser for dispersion. A thickener is required to maintain stability (prevent phase separation). However, during the film-forming process, phase separation still occurs gradually; there’s poor compatibility between components, and whitening takes place. It was observed that the elastomer and resin separated from each other and failed to form a continuous phase. As a result, both the viscosity and elasticity of this mixture are inferior to those of a pure emulsion during film formation. Is there any solution to this problem?