High temperature resistant release film is one of the plastic release films. As the name suggests, this release film has the characteristic of high heat resistance level. The traditional definition refers to a high temperature release film that has a temperature resistance of over 200 ℃ and, based on the heat resistance level of the film insulation material, a long-term working temperature of over 180 ℃ in the H class.

PTFE film

Polytetrafluoroethylene release membrane, also known as Teflon release membrane, is a polymer made from tetrafluoroethylene as a monomer polymer. White wax, semi transparent, heat-resistant, cold resistant, with a density of about 2.2g/ml, can be used for a long time at -180~260oC. Polytetrafluoroethylene is also a toxic material designated by the World Health Organization as one of the three carcinogens.

Polyether ether ketone film

Polyether ether ketone is one of six special temperature resistant engineering materials (PEEK) PEEK, polysulfone PSF, polyimide PI, polyarylester PAR, Polyphenylene sulfide PPS, liquid crystal polymer LCP). The density of PEEK material is about 1.30g/ml, melting point 345 ℃, softening point 168 ℃, tensile strength 132~148MPa, and the mechanical strength of glass fiber or carbon fiber reinforced PEEK products does not decrease at 240 ℃ under high temperature, Can be used as high-temperature resistant structural materials and electrical insulation materials.

Polyimide PI film

Polyimide (PI for short) is a high temperature resistant polymer. The main chain contains phthalein Imide or Succinimide ring, which is usually synthesized from dianhydride or diamine. The decomposition temperature is 550~600 ℃, and the long-term use temperature can reach 200~380 ℃. In addition, it also has excellent size and oxidation stability, radiation resistance, insulation, chemical corrosion resistance, wear resistance, and high strength.

Liquid crystal polymer LCP film

The full name of LCP is liquid crystal polymer material, and its English name is LiquidCrystalPolymer, abbreviated as LCP. It is a new type of polymer material resin, mainly obtained through shrinkage reaction synthesis. LCP has good heat resistance, processing temperature reaches 300-400 ℃, and thermal deformation temperature is about 26-315 ℃.

Polyphenylene sulfide PPS film

The full name of Polyphenylene sulfide is polyphenyl sulfide, which is abbreviated to polyphenyl sulfide in English. PPS, Polyphenylene sulfide is a crystalline polymer, and the main chain of the molecule contains phenylthio group. The ambient temperature density at ℃ is 1.36g/ml, and the glass transition temperature is 150 ℃; The melting point is 281 ℃, which is also one of the six special temperature resistant engineering materials.

PPS release film is mainly used for insulation materials such as electrical appliances and capacitors, wire packaging materials, and automotive components such as vaporizer diaphragms.

Polybenzimidazole PBI film

The full English name of Benzimidazole is Polybenzimidazoles, or PBI for short. The density is 1.2g/ml, the glass transition temperature is 234~275 ℃, the density of aromatic PBI is 1.3~1.4g/ml, the glass transition temperature is 340~5000 ℃, and the thermal stability in nitrogen is greater than 500 ℃.