Dongli Company Develops Super High Durability PET Film
Dongli, Japan, has recently developed "super high durability" to improve the heat and moisture resistance of PET film.
PET thin films are widely used due to their excellent mechanical properties, drug resistance and electrical properties. Among them, durability is used for the backplane of solar cells and insulation materials for motors. If PET films are exposed to high temperature and humidity, their mechanical properties will decrease due to the addition of water and directional relaxation. Therefore, these uses expect more durable PET films.
As a means to improve the durability of PET films, the method of increasing molecular weight of polymers is used. The Dongli company has adopted the technology to develop the "Ludmilla" X10, which achieves the highest level of durability in the industry, and is widely used in components such as solar cells and electrical insulation materials. These uses require further improvement of film durability in response to various application environments and improvement of product life. The "super high durability PET thin film" developed by Dongli company can be expected to contribute to the solution of these problems. The details of the technology are as follows:
1. polymer design technology
Regarding the raw material PET resin, the best catalyst design and polymer design for inhibiting the decomposition reaction of water were carried out using the CAC (Computer Chemistry) excelled by Dongli company. As a result, the decomposition resistance of water resistant at high temperature and humidity is 1.5 times higher than that of conventional durable PET film.
2. thin film precision structure control technology
This is to improve the mechanical properties of thin films for the purpose of two axis drafting control polymer high order structure (crystallization, amorphous) Dongli alone technology. The molecular motion at high temperature and humidity can be suppressed and mechanical properties can be maintained for a long time.
The Dongli company will display the development results on the "nano tech2011" (international nanotechnology comprehensive exhibition technology conference) held by BigSite, Tokyo in February 16th.
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