Compatibility relationship between polyurethane insulation glue and electrophoresis profiles

In the production process of thermal insulation profiles, cast-type thermal insulation profile longitudinal resistance The quality of shearing performance indicators,Depends on the degree of adhesion between the polyurethane insulation glue and the surface treatment layer of the aluminum alloy profile. The current bonding performance between polyurethane thermal insulation glue and powder sprayed profiles It can fully meet the usage requirements, Other types of surface treatments have varying degrees of adhesion problems with thermal insulation glue, Especially the incompatibility between electrophoretic paint profiles and thermal insulation glue is more prominent.

Find out the factors affecting the incompatibility between electrophoretic paint and heat-insulating glue through theoretical analysis, improved by adjusting the formulas of electrophoretic paint and heat-insulating glue The adhesion between them,Improve the longitudinal shear resistance of thermal insulation profiles by adjusting the production process of thermal insulation profiles . Electrophoretic paint profiles prepared from domestic ordinary polyurethane casting glue at normal and low temperatures (Domestic) Longitudinal shear strength is greater than 26N/mm,Meet the national standard requirements. Electrophoretic paint profiles prepared from domestic ordinary polyurethane casting glue at high temperatures font>(domestic) longitudinal shear strength is less than 26N/mm,cannot meet the national standard requirements. Improved polyurethane casting glue formula, Electrophoretic paint profiles prepared by improving polyurethane casting glue at high temperatures(domestic) have longitudinal shear strength greater than 26N/mm,Meet the national standard requirements.

The above contents are only preliminary experimental results,Next step comprehensive electrophoretic paint,The orthogonal fit test of thermal insulation glue needs to be continued in the next step, can determine adaptability蕞Jia’s electrophoretic paint,Thermal insulation glue formula solution,Determine the parameters of electrophoretic insulation profiles蕞Optimize process conditions.