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High electrical property and low corrosion flame retardant reinforcing nylon material and preparation method thereof

A technology with high electrical performance and corrosion resistance, which is applied in the field of high electrical performance and low corrosion flame-retardant reinforced nylon materials and its preparation, can solve the problems of low electrical performance and high corrosion resistance, and achieve high fluidity, high cost performance, and electric resistance. The effect of superior performance

Inactive Publication Date: 2011-07-06
GUANGDONG WAYLAM ENG PLASTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the shortcomings of the above-mentioned prior art, the inventor has accumulated many years of experience in this field, and after repeated research and demonstration, finally came to the present invention. The present invention discloses a high electrical performance, low corrosion, flame retardant reinforced nylon material and Its preparation method solves the defects of low electrical performance and high corrosion caused by adding red phosphorus flame retardant to flame-retardant reinforced nylon in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] First bake 52.4% by weight of nylon resin at 85°C for 3 hours, bake 15% by weight of red phosphorus flame-retardant masterbatch at 120°C for 3 hours, and control the moisture below 0.15%; % weight of ethylene-octene copolymer grafted maleic anhydride, 8% weight of synergistic composite flame retardant system, 0.7% weight of acid absorber calcium stearate, 0.2% weight of the main antioxidant four (β -(3,5-di-tert-butyl-4-hydroxyphenyl)propionic acid)pentaerythritol ester (1010) and 0.1% auxiliary antioxidant tris(2,4-di-tert-butylphenyl)phosphite (168 ), 0.6% by weight of lubricant silicone powder and other raw materials are mixed by a high-speed mixer for 2 minutes and then enter the twin-screw extruder from the metering feeder to plasticize and melt, and simultaneously add 20% by weight of Alkali-free glass fiber, then extruded, cooled, subjected to strong magnetism, and packaged to obtain the product;

Embodiment 2

[0012] First bake 46.4% by weight of nylon resin at 85°C for 3 hours, and bake 12% by weight of red phosphorus flame-retardant masterbatch at 120°C for 3 hours to control the moisture content below 0.15%; % weight of ethylene-octene copolymer grafted maleic anhydride, 8% weight of synergistic composite flame retardant system, 0.5% weight of acid absorber calcium stearate, 0.2% weight of the main antioxidant four (β -(3,5-di-tert-butyl-4-hydroxyphenyl)propionic acid)pentaerythritol ester (1010) and 0.1% auxiliary antioxidant tris(2,4-di-tert-butylphenyl)phosphite (168 ), 0.8% by weight of lubricant silicone powder and other raw materials are mixed by a high-speed mixer for 2 minutes and then enter the twin-screw extruder from the metering feeder to plasticize and melt, and simultaneously add 30% by weight of Alkali-free glass fiber, then extruded, cooled, subjected to strong magnetism, and packaged to obtain the product;

[0013] The synergistic compound flame retardant system...

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Abstract

The invention discloses a high electrical property and low corrosion flame retardant reinforcing nylon material and a preparation method thereof, aiming at solving the defects of low electrical property and high corrosion caused by red phosphorus based flame retardant added into flame retardant reinforcing nylon in the prior art. The invention adopts the technical scheme that the high electrical property and low corrosion flame retardant reinforcing nylon material disclosed by the invention has the formulation (by weight percent): (1) 40-65% of nylon 66 resin, (2) 10-20% of red phosphorus based flame retardant masterbatch, (3) 1-5% of compatilizer, (4) 3-10% of synergistic compound flame retardant system, (5) 0.5-5% of acid absorbent, (6) 0.1-0.5% of antioxidant, (7) 0.2-0.8% of lubricating agent and (8) 10-30% of glass fiber; and the reinforcing nylon material can be prepared by mixing all the components in a high-speed mixing machine for 1-2min and then putting into a twin-screw extruder for extrusion and pelleting. The flame retardant reinforcing nylon material is excellent in the electrical property, low in corrosion (extremely low in corrosion for equipment and a mould) as well as high in fluidity, heat resistance and cost performance, and is capable of meeting the requirements of electrical and electronic appliances such as a temperature controller, a contactor, a circuit breaker and the like as well as domestic appliance products.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a flame-retardant reinforced nylon material with high electrical performance and low corrosion resistance and a preparation method thereof. Background technique [0002] Flame-retardant polyamide (PA) is a widely used flame-retardant engineering plastic. It has been used in electronics, electrical, instrumentation, automobile and other industries for nearly 30 years. There are two types of PA produced in industry: enhanced type and unreinforced type. Flame-retardant products generally require UL94V-0 flame-retardant grade. Most of the flame retardant PA methods use additive flame retardants. In recent years, some flame retardant PAs have also appeared with reactive flame retardants, for example, nylon 66 copolymers containing triaryl phosphine oxides in the main chain. Due to the high processing temperature of PA, the additive flame retardant it uses is an aromatic bro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/02C08L77/06C08L51/06C08K13/06C08K9/04C08K3/02C08K3/22C08K3/34C08K3/38C08K5/098C08K5/134C08K5/526C08K7/14
Inventor 余徐南
Owner GUANGDONG WAYLAM ENG PLASTICS
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