Engaging in the die-cutting operation of mobile phone accessory products requires a certain understanding of material matching, classification, discrimination, etc. However, mobile phone accessory products involve a wide range of material types, and each material is subdivided and different, with different differences. Today, Ruichangxing has little difference in appearance between fluorine film and silicone oil film, but what are the specific differences and classifications?

Fluoride release film is made of polyester film, coated with fluoroplastic release agent, and bonded with silicone pressure sensitive adhesive. Suitable for high-temperature silicone pressure-sensitive tape composite die-cutting and punching, easy to peel off after use. According to the online understanding of coating, the adhesive force of the adhesive tape can maintain about 95% of its original value after being attached. It is widely used in the adhesive manufacturing process of industrial products such as PI, green high-temperature tape production, silicone double-sided tape die-cutting and punching, thermal conductive silicone tape casting, etc.

Characteristics: Stable release force, no scratches.

Application: ① Mainly used for bonding with high-temperature adhesive and silicone Double-sided tape; ②Used for gold fingers, green glue, AB glue, 3M silicone bonding, etc;③ Die cut into any other shape for special purposes.

Fluoride release membraneIt is in the form of fluoride. Most of the tapes are in the form of base material plus glue. There are many kinds of base materials (PET, polyimide) for high temperature resistant tapes. The temperature of acrylic glue can not withstand the temperature of silicone glue. The silicone glue and silicone oil release film belong to the category of silycon. Over time, there will be reactions in all aspects, that is, sticking.

According to the different applications of fluorine release membranes, products can be divided into the following three categories:

Wet coating: refers to the uniform coating of silicone gel on the release surface of the fluorine release film as the substrate, and the silicone gel enters the oven for high-temperature curing and molding, which is called wet coating;

Fluoride release film:Place it at the fitting area, and when there is still residual temperature after PET or PI coating with siliconeThe fluorine release film is attached and does not need to enter the oven for high temperature, which is called a hot paste;

Cold sticker:Bonding silica gel products, such as 3M silica gel, Double-sided tape 9731, 3M9119, 3M4377, etc., are processed by punching, or are made into finished products required by customers. The manufacturing process is conducted at room temperature without involving temperature, which is called cold bonding.

Silicone oil film

PET silicone oil film, also known as PET release film, is a layer of silicone oil applied to the surface of PET film to reduce its adhesion and achieve release effect. The conventional thickness ranges from 25um to 150um. There are two types of products: cold and hot tearing and smooth and matte surface. After anti-static and scratch resistant treatment, the product has good adsorption and adhesion. It can be divided into single-sided release film and double-sided release film; According to the release force, it can be divided into light release membrane, medium release membrane, and heavy release membrane.

Application scope:

PET release film has been widely used in industries such as packaging, printing, circuit boards, laser anti-counterfeiting, lamination, electronics, sealing materials, reflective materials, waterproof materials, pharmaceuticals (plaster paper), sanitary paper, adhesive products, die cutting and stamping processing.