Polybutanediol terephthalate composition and its preparation method
A technology of polybutylene terephthalate and its composition, which is applied in the field of polybutylene terephthalate composition and its preparation, to achieve improved impact strength, good balance of rigidity and toughness, comprehensive performance, and good The effect of overall performance
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Embodiment 1～3
[0033] PBT (polybutylene terephthalate, produced by BASF Company) and ultrafine fully vulcanized powder carboxylated butylbenzene (produced by Beijing Research Institute of Chemical Industry, the preparation method is: the brand produced in Yanshan Petrochemical is XSBRL-54B1 carboxylated butylbenzene In the emulsion, after mixing the cross-linking auxiliary agent isooctyl acrylate into 3% of the mass of the dry rubber of the carboxylated styrene-butadiene emulsion, irradiate vulcanization, the irradiation dose is 2.5Mrad, and obtain through spray drying, the gel content is 92.6% by weight, Particle size is 0.15μm), SEBS grafted maleic anhydride (SEBS-g-MAH, self-made), filler superfine talc powder Talc (produced by Hebei Luquan Building Material Factory, 1250 mesh) and flame retardant (Sb 2 o 3 , decabromodiphenyl ether, commercially available), etc., put into a low-speed mixer and stir evenly, and extrude and granulate in a twin-screw (ZSK 25, German WP company) at 230-250°C...
Embodiment 4～6
[0036] PBT (polybutylene terephthalate, BASF company) and superfine fully vulcanized powder acrylate rubber (production method of Beijing Research Institute of Chemical Industry: the brand of BC-01 produced in Beijing Dongfang Chemical Factory) has a solid content of 48% by weight of acrylic latex, mixed with 3% of the dry rubber mass as a cross-linking aid isooctyl acrylate, and then vulcanized by irradiation. The irradiation dose is 2.5Mrad, obtained by spray drying, and the gel content is 85.7%. Weight, particle diameter is 0.1 μ m), SEBS grafted maleic anhydride (same as embodiment 1), filler superfine talcum powder Talc (same as embodiment 1) and flame retardant (Sb 2 o 3 , decabromodiphenyl ether, commercially available), put into a low-speed mixer and stir evenly, extrude and granulate in a twin-screw (ZSK 25, German WP company) at 230-250°C. During the extrusion process, the long glass fibers (same as in Example 1) are blended with the materials in the screw rods thro...
Embodiment 7～13
[0040] With PBT (polybutylene terephthalate, BASF company) and superfine fully vulcanized powder acrylate rubber (same as embodiment 4) and superfine fully vulcanized powder carboxyl butyl styrene (same as embodiment 1), SEBS grafting Thing (with embodiment 1), filler superfine talcum powder (with embodiment 1) and flame retardant (Sb 2 o 3 , decabromodiphenyl ether, commercially available), put into a low-speed mixer and stir evenly, extrude and granulate in a twin-screw (ZSK 25, German WP company) at 230-250°C. During the extrusion process, the long glass fibers (same as in Example 1) are blended with the materials in the screw rods through the glass fiber feeding ports on the twin-screws. The extruded pellets were dried in a constant temperature oven at 90°C for 6 hours, and then injected into standard specimens at a temperature of 240-260°C for various mechanical property tests. See the specific formula
[0041] Table 1, wherein the contents of each component are in par...
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