Modified Plastics, The Most Important Automotive Lightweight Material
Modularization brings about the leanness of production methods, and plastic structure optimization is the icing on the cake. For example, in the development of the thin-walled bumper, compared with the conventional 3.0mm wall thickness design, the 2.5mm wall thickness design (pp material) previously adopted by Geely can reduce the weight of the single piece by 20 to 15%.
Obviously, thinning can further reduce the weight of the finished product and improve the lightening effect. However, the thinning tends to cause warpage and there is also a problem of difficulty in demolding. Therefore, in addition to the need to improve the process level, the improvement of the material properties is also very important. As the most important automotive lightweight material,modified plastics will play an important role in this field.
The domestic modified plastics industry started relatively late. Compared with the international chemical giants, it has no advantage in technology, scale, and industrial chain. At present, although there are thousands of companies in China engaged in the production of modified plastics, but the scale of enterprises (capacity of more than 3,000 tons) is only more than 70, the situation is not optimistic.
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