Luoyang, Henan – Liming Research Institute of Chemical Industry has launched new glass fiber enhanced PU composites after two years’ research, to substitute for aluminum or other metals used for baggage racks and air flues in buses, according to a company announcement.
Liming said it was the first time a Chinese firm had have successfully developed such a material. The PU composites are 25% less dense than traditional materials, are flame retardant and are more environmental friendly than traditional materials, said Liming. The PU composite materials also meet China’s national standards for materials used in school buses, said Liming.
According to the company’s website, baggage racks and air flues have high mechanical property requirements, they must be dimensionally stable and have good thermal insulation properties. Liming says that the total cost of using aluminum parts for the ducts was higher.
Liming said its PU composites have been used in more than 105,000 buses in China.