EVA foam products are new environmentally friendly EVA materials

EVA foam products are new environmentally friendly EVA materials:

The EVA foam can be covered with a protective material such as cotton cloth or airfelt. The utility of the EVA material is to ensure that the EVA foam maintains the temperature required for EVA foam formation during the period prior to the end of forming. In the case where the deflection of the pattern to be processed is small, the design of the forming mold is to be simple. The heat resistance requirements of EVA foam molds are not long, and molds made of wood, polyester or epoxy natural resin or glass steel are sufficient. The forming of the component allows the vacuum/non-vacuum molding or the male/male mold to be completed. In order to ensure that the EVA material can be extended in the mold under the condition of small resistance, it is necessary to have a large curvature in the edge of the film. The temperature of EVA foam is reduced rapidly, and the temperature deceleration requirements on both sides are the same, avoiding rebound and deformation. Once the formed component temperature is reduced to below 80 ° C, it can be extracted from the mold.

EVA is also called EVA foam. EVA materials can also be used for fireproof EVA products, antistatic EVA products, high frequency EVA products, odorless environmental EVA products, etc., widely used in IT, electronic appliances, hardware and electrical, glass products, precision spectrograph And other product packaging. EVA foam products are flexible, light in weight, good in density and rich in elasticity. They can be used as cushioning materials to ensure better reference and spread external impact force. The rubber backing pad can also be used for anti-vibration and anti-friction effect on the exterior of the product. At the same time, EVA materials have a series of superior enabling characteristics such as heat preservation, moisture resistance and corrosion resistance.

Due to the small mass of EVA foam, the specific heat capacity of the shock-proof EVA foam is low. The surface of the EVA material acts as a cooling passage because of the large amount of cut gap. The temperature of the EVA foam surface is quickly reduced, and the heat energy can be kept very little. Therefore, it is necessary to heat the foam sheet to avoid the temperature of the EVA foam being quickly removed from the oven or the heating plate, and the temperature requirement of the hot forming process is not known.

EVA foam must be dried for EVA foam before thermoforming. Hooking adhesive thermoforming requires heating of the EVA material. The heating process can be carried out in an oven, a hot plate or an infrared heater. The duration of the heating depends on the thickness of the sheet (approximately 1 mm/min).

The common colors of EVA foam are black and white. The color EVA material belongs to EVA foam material rubber products, generally red, yellow, blue, pink, orange, green, gray, brown, etc., and the color can be produced.