Where is the difference between glass fiber and mica powder in plastics?
PA (polyamide) has good comprehensive properties, including mechanical properties, heat resistance, abrasion resistance, chemical resistance and self lubrication, low friction coefficient, flame retardancy, some easy processing, filled with glass fiber reinforced modified and other fillers, improve the performance and expand the scope of application of glass fiber in nylon, can achieve the plasticizing effect, also known as plasticizers, can enhance the physical properties of nylon
For example, when adding 30% glass fiber to PA, the mechanical properties, dimensional stability, heat resistance and aging resistance of PA are obviously improved, and the fatigue strength is 2.5 times that of unreinforced. The forming process of glass fiber reinforced PA is approximately the same as that without strengthening, but the fluidity will be reduced, so the injection pressure and injection speed should be improved appropriately, and the material temperature and the mould temperature should be increased moderately. The glass will be oriented along the flow direction in the injection process, caused by the mechanical properties and shrinkage rate enhancement in the direction of orientation, leading to deformation of product warpage, therefore, mold design, location and shape of the gate should be reasonable, the process can improve the mould temperature, the greater the proportion of adding glass fiber, the plasticizing components of injection molding machine the greater the wear is the main wear of the screw.
Sericite with its unique two-dimensional sheet structure, excellent performance of the move among force and soft is widely used in plastic, its excellent performance in the table can reduce the shrinkage of products and parts, and Alice, minimum bending, improve mechanical properties, heat resistance, and chemical stability of the vast increase. Product surface gloss, prevent plastic ageing
Application of mica powder in color masterbatch and plastics:1, tensile and flexural modulus significantly increased, flat strengthening, improve product size stability and tensile strength, while increasing the flexural strength, reducing elongation, enhanced product toughness, anti-aging, anti cracking.2 、 after adding mica powder in engineering plastic PVC, the temperature of heat change is doubled, the mechanical properties are not decreased, and the impact strength is raised slightly.
