Which is the best pa66 material for broken bridge aluminum doors and windows?

Broken bridge aluminum alloy is to divide the original integral profile into two on the basis of traditional aluminum alloy, and then connect the separated two parts together by means of mechanical compounding by heat insulation strip. The material of the heat insulation strip is very important. Which one is the best material for the pa66 insulation strip of aluminum doors and windows for broken bridges?

Since the insulation strips are connected together by means of mechanical compounding by separate integrated profiles, the insulation strips must have high strength and low conductivity at the same time. Otherwise, it will either cause major quality hazards in the insulated aluminum alloy doors, windows and curtain walls (insufficient strength will cause the insulated aluminum profile to break from the joints of the insulation strips), or it will lose the meaning of heat insulation (the heat insulation effect cannot be guaranteed if the conductivity is high), so The material selection and manufacturing process of the heat insulation strip are very critical.

Broken bridge aluminum door and window insulation strip pa66 modified material has the following advantages

1. Superior anti-aging and anti-ultraviolet properties;

2. Long life and strong chemical resistance;

3. The thermal expansion coefficient is close to that of the aluminum profile, ensuring that the heat insulation strip and the aluminum profile are tightly combined under the condition of a large temperature difference;

4. The heat distortion temperature is high, which can meet the subsequent treatment of the surface of the profile;

5. Make the broken bridge door and window products maintain excellent safety and performance for a long time.

PA66 is a series of modified engineering plastic alloys. It has a high melting point, excellent heat resistance and self-extinguishing properties. However, the unmodified PA66 material does not match aluminum alloy in terms of tensile strength and linear expansion coefficient. Through experiments, adding 25% glass fiber to PA66 is modified into engineering plastic as the basic material of heat insulation strip. very suitable.