Kying is the China's first polyimide film plant which passed the environmental design.

Posted on 2017-07-14
Kying is the China's first polyimide film plant which passed the environmental design. From synthesis of polyamide acid resin(PAA) 
to stretch, the exhaust of each step has been collected and handled to achieve the national standard. Contribute to the sustainable development of the company.
 
In order to further improve the performance of polyimide film, we invested $1.5 million in 2015, built the most advanced distillation purification device in our industry. The secondary refining of solvent dimethylacetamide (PMAC) leads to the water content of the solvent is less than 50ppm, while the water content of solvent in other Chinese polyimide film plant is 300~700ppm.
 
Due to the use of high purity of PMAc, the molecular weight, aging resistance and breakdown voltage of the film were much improved.