Document nkroKpVgEmNBYGLYp2pL6oMa6

Performance comparison of various defoaming agents PFAS Materials PFHxA PFAS Addition Amount Low Low Repellent Excellent Excellent Pinhole Excellent Excellent Compatibility Excellent Excellent Weak points Risks of actual use Silicone Low good good good Fatty acid ester high poor poor Excellent Volatilization of low molecular weight siloxanes Causes poor continuity of contacts in relay circuits A large amount of addition is required, and the adhesiveness and solder heat resistance required for adhesives are lowered. Total evaluation Excellent Excellent No Good Poor Fluorine compound Hydrocarbon Silicone Structure - CF3 -(CF2)n- -CH3 -(CH2)n- -(Si(CH3)2O)n- Critical surface tension (mN/m) 6 18.5 24 31 24