overview[1]
dioctyl phosphate is also known as dioctyl phenyl phosphate. dioctyl phosphate is often used as a plasticizer for pvc.
apply[3]
additives for pvc packaging materials
step 1: weigh 100 parts of pvc, 0.1 part of vinyl chloride, 10 parts of pom, 2 parts of titanium dioxide, 1 part of tribasic lead sulfate, 2 parts of dibasic lead phosphite, and lubricating oil according to the mass proportions. 4 parts, 1 part zinc oxide, 2 parts sorbitol monopalmitate, 1 part pdop, 2 parts pop, 10 parts tin dibutyl mercaptide, 0.5 parts dioctyl benzene phosphate, 0.3 parts silver antibacterial masterbatch , phthalocyanine blue 0.002 parts.
step 2: put the pvc into the high-speed kneader, raise the temperature to 95°c, add the remaining raw materials, raise the temperature to 110°c, knead at a speed of 800r/min, and knead for 15 minutes.
the third step: the kneaded material is moulded with two rollers, the temperature of the front roller is 170°c, the rotation speed is 16r/min, the rear roller is 160°c, the rotation speed is 26r/min, the kneading material is mixed for 15min, and the flat vulcanizer is pressed at the temperature of 180℃, pressure 25mpa, time 10min, cool and curl after calendering to obtain pvc packaging material with a thickness of 0.5mm.
the preparation method is simple, saving manpower and material resources. the longitudinal tensile strength is 9mpa, the transverse tensile strength is 8mpa, the longitudinal elongation is 88%, and the transverse elongation is 75%; the combustion is self-extinguishing, the melting time is 105s, and the breakn voltage 11.4kv/mm, tear strength 108mpa, notched impact strength 5.3kj/m2; bending strength 30mpa, cloth chemical hardness 22, wide source of raw materials, low cost, tensile strength loss of 0.015% after natural light aging for 12 months; can be used in it is widely used in various extreme environments. after two months of heat aging at 100°c, the tensile strength loss is 0.12%. after 40kgy measured gamma ray irradiation, the gel rate is 75%. it can be widely produced and continuously replace existing packaging materials.
