Poly ether ether ketone (PEEK) is a kind of polymer which contains one ketone bond and two ether bonds in the main chain. It is a special polymer material. It is a kind of semi crystalline polymer material with melting point of 343 ℃, Tg = 143 ℃, thermal deformation temperature of load as high as 315 ℃ and instantaneous service temperature of 300 ℃. The results show that the tensile strength is 132 ~ 148 MPa, the density is 1.265 (amorphous) ~ 1.320 (crystalline) g / cm3; the maximum crystallinity is 48%, usually 20 ~ 30%, impact strength (notch) 60 ~ 80J / M; elongation at break ≥ 150%; water absorption ≤ 0.1%; volume resistivity 1016 Ω· cm; bending strength ≥ 140MPa; dielectric constant 3.2 ~ 3.3; tensile strength ≥ 93mpa; flame retardant (UL94) It can be used as high temperature resistant structural materials and electrical insulation materials, and can be used as reinforced materials with glass fiber or carbon fiber. This material has a large number of applications in aerospace, medical devices (as artificial bone repair of bone defects) and industrial fields, known as the pyramid tip of the plastic industry.
The peek films, which are made of super engineering plastics peek resin by thermoplastic molding, can be divided into two types: low crystallization and high crystallization:
Mechanical properties: the plastic film with both toughness and rigidity, especially its excellent fatigue resistance to alternating stress, is the most outstanding among all plastics, comparable to alloy materials.
High temperature resistance: it can withstand the temperature of lead-free welding process, the film thickness is between 25-155 μ m, the RTI grade of non impact mechanical application is 220 ℃, the electrical application is 200 ℃, and the carbonization point remains stable to 500 ℃.
Self lubricating property: it has outstanding sliding characteristics in all plastic films, and is suitable for strictly demanding low friction coefficient and wear resistance applications. In particular, the self-lubricating performance of PEEK film mixed with carbon fiber and graphite in a certain proportion is better.
Chemical resistance (corrosion resistance): excellent chemical resistance. In common chemicals, only concentrated sulfuric acid can dissolve or destroy it. Its corrosion resistance is similar to that of nickel steel.
Flame retardant: very stable polymer, without any flame retardant can reach the highest flame retardant standard, halogen-free, in accordance with IEC 61249-2-21 standard.
Peel resistance: good peel resistance, can be made into a very thin coating of electromagnetic wire, and can be used in harsh conditions.
Fatigue resistance: it has the best fatigue resistance among all resin films.
Radiation resistance: the ability of high radiation resistance is very strong, and it can still maintain good insulation ability under ultra-high irradiation dose.
Hydrolysis resistance: it is not affected by water and high-pressure water vapor. The products made of this kind of film material can still maintain excellent properties when used continuously in high temperature and high pressure water.
Solubility and processability: when it reaches the temperature above melting point, it is easy to seal with ultrasonic (PET film can also be sealed), and laser can be used to dissolve and print characters.
High definition of sound: avoid "hearing fatigue" caused by metal film noise and achieve better acoustic performance.
Environmental protection and safety: lightweight, recyclable, RoHS compliant, can be used to manufacture products that meet the requirements of the same directive and meet the requirements of the food and Drug Administration (FDA).
A wide range of thickness selection: from 3 μ m to 150 μ M can be produced.
|Surface treatment||Matt / glossy; glossy / glossy; can be customized according to customer requirements|
|LGPF-NH001||It is a kind of filled semi crystalline film with thickness more than 12μm, which is the most common brand in peek film product series|
|LGPF-NW002||It belongs to filled amorphous film with thickness between 3 ~ 150μm, which is mainly suitable for hot forming application of thin film. In addition, when the need for ductility or a certain degree of optical transparency, the series of films will also be selected|
|LGPF-BS001||Black film, decorative film and natural color film have the same characteristics as natural color film. It is suitable for products with dark surface, such as acoustic loudspeaker and aviation heat insulation and sound insulation applications, with thickness of 50 ~ 100μM|
|LGPF-TW003||It is a mineral filled amorphous film, with a variety of filling ratios. The thickness is from 12 μ m. It is usually suitable for the application of thin films with high modulus or low coefficient of thermal expansion and processed into semi crystalline form by thermoforming process|
|Items||Test method||Test conditions||Unit||LGPH-NH001||LGPH-NW002||LGPH-BS001||LGPH-TW003|
|breakdown strength||Def-Stan 81-75||KJ/m2||25||25||39||39||/||/||/||/|
|tear strength||ISO 6383-1||N/mm||7||9||5.5||5.5||/||/||/||/|
|dielectric constant||ASTMD 150||23℃，10MHz||/||3.3||3.2||/||/|
|dielectric loss factor||/||0.003||0.002||/||/|
|specific gravity||ISO 1183||23℃||/||1.32||1.28||1.32||1.45|
|coefficient of linear expansion||ASTMD696||MD||ppm||50||62||/||/|
|water absorption（50%RH）||ISO 62||23℃，24h||%||0.08||0.20||/||/|
※The thickness of the test film was 50µm
It is widely used in aerospace, automobile manufacturing, industrial fields, medical devices, insulation materials and other fields: pressure sensitive adhesive tape, pressure sensor film, printed circuit substrate, acoustic speaker film, high temperature label, capacitor, gasket in high-speed motor, composite washer in mobile phone hinge, laser printing label, direct thermal bonding of metal foil, flexible surface heater, high-temperature label, capacitor, gasket in high-speed motor, composite washer in mobile phone hinge, laser printing label, direct thermal bonding of metal foil, flexible surface heater, high temperature label, capacitor, gasket in high-speed motor, composite Semiconductor technology, protective film and other related industries. At the same time, the thermoplastic film can obtain the most ideal versatility and flexibility through secondary processing. The secondary processing properties include adhesion, surface treatment, coating, cutting, stamping, hot lamination, thermal welding and thermal sealing, hot forming, printing and metallization.