Low-temperature-resistant hydrolysis-resistant glass fiber reinforced PBT and preparation method thereof
A hydrolysis-resistant and low-temperature-resistant technology, which is applied in the field of polymer materials to achieve excellent mechanical properties, improved strength, and excellent overall flame retardancy
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Embodiment 1
[0028] A low-temperature-resistant and hydrolysis-resistant glass fiber-reinforced PBT, comprising the following raw materials in parts by weight: 100 parts of polybutylene terephthalate PBT, 15 parts of zinc oxide modified glass fiber, 1.1 parts of iron-doped nano-titanium dioxide, nano-moisture 3 parts of soil removal, 0.4 parts of vinyltriacetoxysilane, 5.5 parts of toughening agent SWR-6B, 0.5 parts of antioxidant 1010.
[0029] The above polybutylene terephthalate PBT had a viscosity of 1.0 dL / g. The particle diameter of the iron-doped nano-titanium dioxide is 30-80nm, and the doping amount is 1.5%. The particle size of nano-montmorillonite is 20-100nm.
[0030] Zinc oxide modified glass fiber is prepared by the following method:
[0031] (1) Dissolve 1 part of zinc acetate in 50 parts of ethylene glycol, stir for 25 minutes, add 3 parts of chopped glass fiber, and then ultrasonically disperse for 50 minutes;
[0032] Chopped glass fibers have a length of 0.5-5 mm and ...
Embodiment 2
[0036] A low-temperature-resistant and hydrolysis-resistant glass fiber-reinforced PBT, comprising the following raw materials in parts by weight: 100 parts of polybutylene terephthalate PBT, 16 parts of zinc oxide modified glass fiber, 0.8 parts of iron-doped nano-titanium dioxide, and nano-moisture 5 parts of soil removal, 0.5 parts of vinyltriacetoxysilane, 3 parts of toughening agent SWR-6B, 0.5 parts of antioxidant 168.
[0037] The above polybutylene terephthalate PBT had a viscosity of 1.0 dL / g. The particle diameter of the iron-doped nano-titanium dioxide is 30-80nm, and the doping amount is 1.5%. The particle size of nano-montmorillonite is 20-100nm.
[0038] Zinc oxide modified glass fiber is prepared by the following method:
[0039] (1) Dissolve 1 part of zinc acetate in 50 parts of ethylene glycol, stir for 30 minutes, add 2-3 parts of chopped glass fiber, and then ultrasonically disperse for 30 minutes;
[0040] Chopped glass fibers have a length of 0.5-5 mm a...
Embodiment 3
[0044] A low-temperature-resistant and hydrolysis-resistant glass fiber-reinforced PBT, comprising the following raw materials in parts by weight: 100 parts of polybutylene terephthalate PBT, 12 parts of zinc oxide modified glass fiber, 0.7 parts of iron-doped nano-titanium dioxide, and nano-moisture 2 parts of soil removal, 0.5 parts of vinyltriacetoxysilane, 5 parts of toughening agent SWR-6B, 0.5 parts of antioxidant 168.
[0045] The above polybutylene terephthalate PBT had a viscosity of 1.0 dL / g. The particle size of the iron-doped nano-titanium dioxide is 30-80nm, and the doping amount is 2%. The particle size of nano-montmorillonite is 20-100nm.
[0046] The preparation method of the zinc oxide modified glass fiber is the same as in Example 1.
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