ABS plastic refers to a graft copolymer of polybutadiene rubber with monomers styrene and acrylonitrile, where A represents acrylonitrile, B represents butadiene, and S represents styrene. To meet the different requirements of different categories for the performance of ABS plastics, people have diversified the types of ABS plastics by adjusting factors such as polymerization methods, process conditions, monomer ratios, and rubber structural parameters.
ABS plastics can be divided into ultra-high impact type, high impact type, medium impact type, etc. according to their impact strength. They can be divided into injection, extrusion, rolling, vacuum, blow molding and other grades according to their molding and processing methods. According to their use and performance characteristics, they can be further divided into 10 types, including general purpose, heat resistant, electroplating, flame retardant, transparent, extruded, and pipe materials. Among them, general purpose injection grade ABS plastics have the largest market capacity.
The automotive dashboard is an important functional and decorative component in automobiles. If made of steel plate, it not only has high cost, but also needs to go through more than 10 processes such as cutting, stamping, drilling, and painting. When made of ABS plastic, it can be formed with just one injection molding or blow molding.
Low odor ABS plastic
The car interior pursues low VOC performance and improves the air quality inside the car. Small molecule organic volatiles in plastic are prone to migrate to the surface of plastic products and evaporate into the air inside the car, causing physical harm to passengers.
Choosing appropriate substrates, modification methods, and processing techniques can produce ABS materials that meet the requirements of the automotive manufacturer.
Low breath ABS data is mainly used for consumer interior components such as door panels, instrument panel trim frames, glove boxes, central control instrument panels, air conditioning vents, etc., especially for components such as air conditioning vents that are required to withstand higher temperatures and transmit air.
Heat resistant ABS
Regarding some components that are required to withstand higher temperatures, the heat resistance of ABS still needs to be improved. A common method to improve the heat resistance of ABS is to blend ABS with PC to make ABS/PC alloy.
Heat-resistant ABS is commonly used to manufacture heat-resistant components such as air conditioning vents and heat dissipation grilles. Regarding the heat dissipation grille, improving its heat resistance can prevent component deformation, thereby avoiding the scattered electroplating layer caused by deformation. It is also made of ABS or ASA. Due to its large area and impact resistance requirements, the door panel is also made of PC/ABS alloy. The fenders of high-end cars are also made of ABS/PC alloy.
Matte ABS
The intense reflection of light in the driver's cab can cause the driver's
Not suitable
Tired and affects the driver's vision at night. Therefore, matte ABS has a universal application in automotive cab components. Due to ABS being a high gloss engineering plastic, a resin grade with low relative brightness and wide molecular weight dispersion was chosen during the modification process. And select fillers in the form of flakes or needles with large particle size. This can improve the surface roughness of the product, thereby scattering light and achieving a extinction effect.
Electroplated ABS
Although ABS has good aesthetic effects, in order to pursue better aesthetic effects, it is often necessary to stop electroplating, painting, and other exterior decoration treatments for ABS.
Electroplated grade ABS is modified with a certain amount of rubber to improve data polarity. Electroplated ABS is mainly used in components such as heat dissipation grilles and decorative labels.
One of the difficulties in plasticizing automobiles is the plasticization of the body outer panels. The exterior panel of the vehicle body includes front and rear mudguards, partitions, and panels, which have the largest amount of information and are required to have impact resistance, heat resistance, and rigidity. ABS resin and engineering plastic alloys possess these properties and can be used as materials for vehicle exterior panels. Automotive interiors play an important role in the warmth and safety of a car. Most modern car interior panels are integrally molded with a luxurious appearance, and ABS resin is commonly used.