Environment-friendly and flame-retardant glass fibre reinforced PP/PA1010 alloy material with high CTI (comparative tracking index) valve and high GWIT (glow wire ignition temperature) value and preparation method thereof
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An alloy material and environmentally friendly technology, applied in the field of PP/PA1010 alloy material and its preparation, to achieve the effects of improving impact performance, reducing friction coefficient and improving slipperiness
Inactive Publication Date: 2015-04-08
SHANGHAI SUNNY
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[0008] However, there is no report on the environmentally friendly flame-retardant glass fiber reinforced PP / PA1010 alloy material with high CTI value and high GWIT value and excellent comprehensive performance.
Method used
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Embodiment 1
[0060] Example 1 Preparation of PP / PA1010 alloy material of the present invention (1)
[0061] Weigh raw materials by weight percentage: PP 25%, PA1010 (intrinsic viscosity: 2.8dl / g) 25.1%, compound flame retardant 12%, antimony trioxide 4%, alkali-free glass treated with silane coupling agent Fiber 30%, maleic anhydride grafted PP 3%, antioxidant 1330 0.4%, iron oxide 0.5%; put the weighed raw materials into a high-mixer and mix for 5 minutes, and discharge; extrude with a twin-screw extruder For granulation, the processing temperature is 220-240°C, the screw speed is 35HZ, and the specific processing conditions are shown in the table below.
[0062]
Embodiment 2
[0063] Example 2 Preparation of PP / PA1010 alloy material of the present invention (2)
[0064] Weigh raw materials by weight percentage: PP 25%, PA1010 (intrinsic viscosity: 2.8dl / g) 23%, compound flame retardant 12%, antimony trioxide 4%, alkali-free glass treated with silane coupling agent Fiber 30%, maleic anhydride grafted PP 5%, antioxidant 1330 0.4%, iron oxide 0.6%; put the weighed raw materials into a high-mixer and mix for 2 minutes, and discharge; extrude with a twin-screw extruder For granulation, the processing temperature is 220-240°C, the screw speed is 35HZ, and the specific processing conditions are shown in the table below.
[0065]
Embodiment 3
[0066] Example 3 Preparation of PP / PA1010 alloy material of the present invention (3)
[0067] Weigh raw materials by weight percentage: PP 23%, PA1010 (intrinsic viscosity: 2.8dl / g) 22%, compound flame retardant 20%, antimony trioxide 4.3%, alkali-free glass treated with silane coupling agent Fiber 20%, maleic anhydride grafted PP 10%, antioxidant 1330 0.1%, iron oxide 0.6%; put the weighed raw materials into a high-mixer and mix for 2 minutes, and discharge; extrude with a twin-screw extruder For granulation, the processing temperature is 220-240°C, the screw speed is 30HZ, and the specific processing conditions are shown in the table below.
[0068]
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Abstract
The invention provides an environment-friendly and flame-retardant glass fibre reinforced PP / PA1010 alloy material with a high CTI (comparative tracking index) valve and a high GWIT (glow wire ignition temperature) value, which is prepared from raw materials in percentage by weight: 23-41% of PP (propene polymer), 22-41% of PA1010, 6-20% of a compound flame retardant, 3-15% of antimonous oxide, 20-30% of glass fibres, 2-10% of a compatilizer, 0.1-1% of an antioxidant and 0.1-1% of oxides, wherein the compound flame retardant is composed of substances in the percentage by weight: 50% of BPS (brominated polystyrene), 25% of magnesium hypophosphite and 25% of talcum powder. The invention further provides a preparation method for the material aforementioned. The material and the preparation method provided by the invention have the following advantages that with the adoption of a novel flame-retardant compound system, the GWIT value of the material is increased by 50-100 DEG C, and glow wires at 850 DEG C can pass; due to the addition of the glass fibres, the GWIT value of the material is also obviously increased; simultaneously, the impact performance and the ageing resistance of the material are improved, the processing flowability and the smoothness are enhanced, and the friction coefficient is lowered.
Description
technical field [0001] The invention relates to a PP / PA1010 alloy material and a preparation method thereof, in particular to an environmentally friendly flame-retardant glass fiber reinforced PP / PA1010 alloy material with a high CTI value and a high GWIT value and a preparation method thereof. Background technique [0002] Nylon (Nylon), Chinese name polyamide, English name polyamide, referred to as PA, is the general term for thermoplastic resins containing repeated amide groups—[NHCO]—on the main chain of the molecule, and its naming is determined by the specific number of carbon atoms in the synthetic monomer , such as PA-6, PA-66, PA-1010, PA-610. PA has high crystallinity and obvious melting point; high surface hardness, wear resistance, small friction coefficient, self-lubrication and noise reduction; good low temperature performance and certain heat resistance (can be used below 100°C); non-toxic , Odorless, no mildew, self-extinguishing, good weather resistance, bu...
Claims
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