K glue
close K glue, also known as K-resin, is a styrene butadiene copolymer (SB). It has good transparency, gloss, and impact resistance, and its price is between PS and PC. Therefore, it is widely used to manufacture transparent products that are not easily broken, such as cups, lids, bottles, hinge boxes, coat hangers, food and medical packaging supplies, etc. K glue is made by copolymerizing styrene and butadiene, Polystyrene has high transparency and good processing properties, but its disadvantage is brittleness. Butadiene can be polymerized into synthetic rubber, which has elasticity and impact resistance. The two copolymerize to improve the disadvantage of polystyrene and obtain polymers with good comprehensive properties K material is an amorphous polymer with good fluidity, and the processed products have smooth appearance, luster and high transparency. It is suitable for injection molding, hollow blow molding, extrusion and other processing methods, and can be processed on most common equipment without changing the equipment and mold ①. It has less moisture absorption and does not need to be dried before processing ②. The processing temperature is wide, generally between 160 and 260 ℃, with good fluidity, Easy to process. ③. Non crystalline, low shrinkage, not easy to deform, warp, etc. ④. Secondary processing A. Printing performance: most brands of k glue can be printed directly, and those difficult to print can be printed after corona discharge treatment, plasma treatment or flame treatment. B. Bonding: solvent bonding can be used, such as toluene, ethyl acetate, dichloromethane; Ultrasonic welding can also be used