APEL (cyclic olefin copolymer) and the use of performance

Hydrocarbon copolymer (cycloolefin copolymer, COC). This cyclic olefin copolymer main chain structure with a huge fat knot ring system 

Structure, APEL is amorphous, and has a high glass transition temperature. Therefore, both APEL polyolefin plastic and amorphous nature of the two, made its 

Unique characteristics. APEL provides excellent optical properties and gas tightness, which is unmatched by other resins. APEL is a new material 

Necessary to provide a transparent polymer some outstanding properties. 

The level and nature of APEL 

Optical properties 

APEL is amorphous, it has excellent optical properties. APEL is a colorless and transparent, the transmission rate at 91%, haze (haze) for the 

4%, while double refractive index is low, the complex refractive index is less than 20nm, is almost identical with the PMMA. 

Moisture resistance of 

APEL of water vapor permeability (coefficient of moisture vapor permeability) are all available 

The lowest of transparent resin, therefore, APEL ideal for moisture-resistant containers and films of the application. 

Chemical resistance 

APEL has good chemical resistance, and water vapor, acids, alkalis and polar solvents have excellent tolerability. 

Rigidity under high temperature 

APEL tortuous modulus has little influence of temperature in the high temperature can naturally maintain high rigidity. 

Dimensional Stability 

APEL has excellent dimensional stability, and its modulus low shrinkage, linear expansion coefficient is low. 

Processing Formability 

APEL has excellent melt fluidity and Shaping of, the process of forming heat-resistant than other amorphous polymers is better. APEL can benefit 

Using injection molding, injection blow molding, extrusion, and vacuum forming methods such as metal forming. 

 

APEL recovery 

APEL is recyclable, the utility, once again the nature of APEL process will not cause deterioration. In addition, APEL itself as polyolefins, the burning 

Technology will not produce toxic gases, environmental protection is very beneficial. 

Compared with PMMA and PC, APEL is characterized by the largest rate of very low moisture absorption, water absorption is less than 0.01%. PMMA and PC may be due to smoking 

Wet and size change caused by a qualitative change in the ultra-high density optical application was essentially limits. The APEL can completely prevent the absorption caused by 

Problems and have excellent dimensional stability. APEL light transmission rate of 90%, comparable to PMMA and PC. APEL can double refraction rate 

The lowest of all transparent resin, and its complex refractive index is less than 20nm. 

As optical materials, APEL have many advantages. APEL has good mechanical properties, and maintained at a high temperature high rigidity, temperature 

Degree of its modulus of small twists and turns. APEL also has excellent low temperature resistance, in liquid nitrogen (-196 ℃) can also be used under. 

APEL has good chemical resistance, and water vapor, acids, alkalis and polar solvents have excellent tolerability. APEL is also excellent workability 

Features can be easily recovered. 

Excellent optical properties, dimensional stability, heat resistance and moisture resistance to APEL useful in the field of advanced optical potential applications. A typical example 

Such as CD, optical lens and so on. APEL's low complex refractive index is comparable to glass aspherical lens, is expected to replace the glass aspherical lens. 

Excellent optical properties, heat resistance and low temperature resistance also make APEL in the medical equipment, containers, packaging, packaging materials and other functional areas of potential applications.