What should be paid attention to in forming TPE coated ABS.PC
Source：德创化工Time：2020-03-12Hits：2019
● TPE compatibility between TPE and hard cementing components needs to be matched. The molecular solubility is close to each other, so the molecular compatibility is better.
● Sharp corners should be avoided as much as possible in the design to ensure excellent contact between TPE and hard rubber parts and improve bonding effect.
● Avoid leaving gas in the mold cavity through proper exhaust.
● Balance the thickness of TPE with the expected tactile sensation;
● Maintain the temperature of TPE melt to ensure bonding effect.
● TPE materials need to be baked and reprocessed for overmolding so as to reduce water lines on the product surface and obtain the effect of uniform surface color.
● The carrier resin of the selected color master batch is compatible with TPE and structural materials;
● Special treatment shall be given to smooth surfaces in order to increase the contact surface between soft glue and hard glue and strengthen the bonding effect.
●TPE should have good fluidity. Because the thickness to size ratio of TPE coating layer is very small, TPE usually needs to flow through a longer path and thin wall area to fill the mold.
● The flow length/product thickness ratio of ●TPE is less than 150: 1;
● Use good adhesive.
