近年来，热塑性材料在工程建材方面逐渐得到应用并推广。在美国，热塑性材料消耗已等于多功能金属和铝及铜的总和，约2．5亿t。它可依应用及不同需求而持别设计，具有价廉质轻，甚至比金属强韧而格外受航天工业的重视。据估计在20O0年，此类热塑工程材料年需求量将高达15亿t。 In recent years, thermoplastic materials have gradually been applied and promoted in construction materials. In the United States, the consumption of thermoplastic materials is equal to the sum of multifunctional metals and aluminum and copper, about 250 million tons. It can be designed according to application and different needs. It is cheap, lightweight, and even stronger than metal, and is particularly valued by the aerospace industry. It is estimated that in 2000, the annual demand for such thermoplastic engineering materials will reach 1.5 billion tons.