Halogen-free flame-retardant glass fiber-reinforced polycarbonate alloy material
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A technology of glass fiber and polycarbonate, which is applied in the field of polycarbonate alloy materials, can solve the problems that the flame retardancy is not enough, restricts, and affects people's life and property safety, and achieves the effect of high modulus and high rigidity
Inactive Publication Date: 2014-09-10
苏州宇度医疗器械有限责任公司
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Problems solved by technology
However, the polycarbonate material is brittle and is very sensitive to notches especially in the low temperature range, so it is limited in practical applications
[0003] Although polycarbonate itself has a certain flame retardancy, when producing some thin-walled products, the flame retardancy is still not enough to meet people's expected requirements. Therefore, it is still necessary to find better flame-retardant products.
Traditional flame retardants are all halogen-containing. When these flame retardants burn, they produce thick smoke and toxic gases, which cause secondary hazards during combustion and seriously affect the safety of people's lives and property.
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Embodiment 1
[0017] 70 parts of bisphenol A type polycarbonate resin;
[0018] 19 parts of acrylonitrile-butadiene-styrene copolymer;
[0019] 10 parts of general-purpose polybutylene terephthalate;
[0020] 0.7 parts of 2,5 di-tert-butylhydroquinone;
[0021] 3 parts of surface-treated active calcium carbonate;
[0022] The mass percentage is 27 parts of the mixture of 50% ammonium polyphosphate and 50% melamine urate;
[0023] 10 parts of alkali-free glass fiber with a length of 3 mm;
[0024] 0.6 parts of zinc stearate.
Embodiment 2
[0026] 85 parts of bisphenol A type polycarbonate resin;
[0027] 16 parts of acrylonitrile-butadiene-styrene copolymer;
[0028] 7.5 parts of general-purpose polybutylene terephthalate;
[0029] 0.5 parts of 2,5 di-tert-butyl hydroquinone;
[0030] 8 parts of surface-treated active calcium carbonate;
[0031] 36 parts of mixtures of 50% ammonium polyphosphate and 50% melamine urate by mass percentage;
[0032] 8 parts of alkali-free glass fiber with a length of 3 mm;
[0033] 0.7 parts of zinc stearate.
Embodiment 3
[0035] 75 parts of bisphenol A type polycarbonate resin;
[0037] 8.5 parts of general-purpose polybutylene terephthalate;
[0038] 0.3 parts of 2,5 di-tert-butylhydroquinone;
[0039] 4 parts of surface-treated active calcium carbonate;
[0040] 33 parts of mixtures of 50% ammonium polyphosphate and 50% melamine urate by mass percentage;
[0041] 14 parts of alkali-free glass fiber with a length of 3mm;
[0042] 0.9 parts of zinc stearate.
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Abstract
The invention provides a halogen-free flame-retardant glass fiber-reinforced polycarbonate alloy material, which belongs to the technical field of high polymer materials. The polycarbonate alloy material comprises the following raw materials by weight: 70 to 85 parts of a polycarbonate resin, 14 to 19 parts of a toughening agent, 7.5 to 10 parts of polyethylene terephthalate, 0.3 to 0.7 part of an antioxidant, 3 to 8 parts of light calcium carbonate, 27 to 36 parts of metal phosphate, 8 to 14 parts of glass fibers and 0.6 to 0.9 part of a lubricant. The provided halogen-free flame-retardant glass fiber-reinforced polycarbonate alloy material has high-modulus resistance and high rigidity, is applicable to production of automobile parts with high requirements on precision and has bending strength of 105 to 130 MPa, flexural modulus of 3400 to 4100 MPa, elongation at break of 15 to 20%, notched impact strength of 10 to 15 KJ/m2 (under the condition of -40 DEG C), heat distortion temperature of 110 to 130 DEG C and flame resistance of V-0 (UL-94-1.6 mm). Poisonous and harmful halogen is not released during combustion of the alloy material, thereby causing no secondary harm.
Description
technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a halogen-free flame-retardant glass fiber-reinforced polycarbonate alloy material. Background technique [0002] Polybutylene terephthalate (PBT) is a thermoplastic material with excellent comprehensive properties, which has the characteristics of solvent resistance, wear resistance and weather resistance. Polycarbonate (PC) has the characteristics of high rigidity, high strength and high temperature resistance. However, polycarbonate materials are brittle and are very sensitive to notches in the low temperature range, so their practical applications are limited. [0003] Although polycarbonate itself has a certain flame retardancy, when producing some thin-walled products, the flame retardancy performance is still not enough to meet people's expected requirements. Therefore, it is still necessary to find better flame-retardant products. Traditional flame...
Claims
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