![<?echo $_SERVER['SERVER_NAME'];?>](/template/twentyseventeen/skin/images/header.jpg)
As a functional exterior part, the current automotive lamp decoration ring has become an important part of the car's personalized design. According to the special environment of the lighting environment, long-term use, light distribution, wall thickness and assembly, it is usually required that the material has high heat resistance (≥), low fog value, high surface gloss, high rigidity and toughness, etc. Attributes. Therefore, the materials currently used as decorative rings are: heat-resistant polycarbonate (PC), PBT/PET+MD, and primer-free PBT. In contrast, the application of primer-free PBT materials in automotive lighting rings The aspect has a unique performance advantage, mainly in:
Primer-free PBT provides good environmental performance. The material has a very high surface gloss and can completely meet the requirements of directly evaporating the surface of the aluminum layer, so that no primer treatment is required, and environmental pollution caused by evaporation of the primer solvent is avoided.
At present, various OEMs pay more and more attention to the diversified design of the lights. In addition to the design, they also include the dermatoglyphic design of the lights. The primer-free PBT has better activity and improves the mold replication of the material, and can perfectly display the high-gloss surface and the embossed surface of the mold cavity on the lamp product, thereby realizing the diversity of the lamp design and Aesthetics. Not only that, but the good activity also makes the primer-free PBT material meet the design requirements of thinner products, with shorter production cycle and wider processing window.
At present, Shanghai Jinhu Rili Plastic Co., Ltd. has successfully developed the PBT material SUNNY®® HEB4010 for the spray-free car lighting with its own patented technology, which has been applied to the Chery Fengyun model. The SUNNY® HEB4010 features:
1. Very low molecular weight volatilization at high temperatures.
For the application of primer-free PBT materials on the rim of the car, it is required to control the volatilization of small molecules to a very low level. If the amount of volatilization of small molecules is large, the surface of the mold scale and the aluminum-plated product will be not bright or have defects such as multicolored phenomenon and fog.
2. Higher heat resistant temperature. SUNNY® HEB4010 has a high heat resistance temperature, which makes its applicability greatly improved.
3. Good recycling performance. In order to meet the requirements of the Automotive Material Recovery Act (such as ELV), Kumho has been developing materials with good recycling properties. SUNNY® HEB4010 is a recyclable material. The key performance of SUNNY® HEB4010 remains high after the addition of 20% disposable regrind.
Suzhou Demine Plastic Co.,Ltd , https://www.demineplastics.com