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Low-odor flame-retardant nylon 6 composite material and preparation method thereof

A technology of flame retardant nylon and composite materials, applied in the field of nylon composite materials, can solve the problems of inability to apply and the smell of brominated flame retardants, and achieve the effects of low odor, improved flame retardant effect, and reduced dosage

Inactive Publication Date: 2017-01-04
NINGBO EAGLE NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, brominated flame retardants are widely used because of their low cost and good effect. However, because of their strong odor, brominated flame retardants cannot be used in automotive industry interior parts and other parts that have strict requirements on odor; therefore, looking for A low-odor flame-retardant nylon 6 composite is the key to solving this technology

Method used

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  • Low-odor flame-retardant nylon 6 composite material and preparation method thereof
  • Low-odor flame-retardant nylon 6 composite material and preparation method thereof
  • Low-odor flame-retardant nylon 6 composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Step 1. First place the regenerated nylon 6 (relative viscosity 2.7) in an oven at 100°C to dry for 3-4 hours, so that the moisture content is less than 1‰; then weigh 50kg of dried nylon 6 and 1.5kg of ethylene octene for copolymerization Elastomer-maleic anhydride copolymer (toughener), 0.25kg N,N'-1,6-hexylene-bis[3-(3,5-di-tert-butyl-4-hydroxyphenyl)propane Amide] (antioxidant), 0.25kg three (2,4-di-tert-butylphenyl) phosphite (antioxidant), 15kg melamine cyanurate (flame retardant), 1.5kg silicone powder ( lubricant), 6kg melamine polyphosphate (flame retardant), 2kg black masterbatch, 0.5kg deodorant, 1.0kg bis(2,4-di-tert-butylphenyl) pentaerythritol diphosphite (antioxidant), And add them together in a high-speed mixer and stir until they are evenly mixed to obtain a mixture;

[0028] Step 2. Add the mixture obtained in Step 1 and 30kg of alkali-free chopped glass fibers into a twin-screw extruder with a length-to-diameter ratio of 40:1 through the main feed an...

Embodiment 2

[0030] Step 1. First place the regenerated nylon 6 (relative viscosity 2.7) in an oven at 100°C to dry for 3-4 hours, so that the moisture content is less than 1‰; then weigh 50kg of dried nylon 6 and 1.5kg of ethylene octene for copolymerization Elastomer-maleic anhydride copolymer (toughener), 0.25kg N,N'-1,6-hexylene-bis[3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionamide ] (antioxidant), 0.25kg three (2,4-di-tert-butylphenyl) phosphite (antioxidant), 10kg melamine cyanurate (flame retardant), 1.5kg silicone powder (lubrication agent), 5kg melamine polyphosphate (flame retardant), 5kg sodium hypophosphite (flame retardant), 2kg black masterbatch, 0.5kg deodorant, 1.0kg bis(2,4-di-tert-butylphenyl) pentaerythritol di Phosphite (antioxidant), and it is added together in the high-speed mixer and stirred and mixed until uniform, to obtain the mixture;

[0031] Step 2. Add the mixture obtained in Step 1 and 30kg of alkali-free chopped glass fibers into a twin-screw extruder with ...

Embodiment 3

[0033] Step 1. First place the regenerated nylon 6 (relative viscosity 2.7) in an oven at 100°C to dry for 3-4 hours, so that the moisture content is less than 1‰; then weigh 50kg of dried nylon 6 and 1.5kg of ethylene octene for copolymerization Elastomer-maleic anhydride copolymer (toughener), 0.25kg N,N'-1,6-hexylene-bis[3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionamide ] (antioxidant), 0.25kg three (2,4-di-tert-butylphenyl) phosphite (antioxidant), 5kg melamine cyanurate (flame retardant), 1.5kg silicone powder (lubricating agent), 5kg melamine polyphosphate (flame retardant), 5kg potassium polyphosphate, 2kg black masterbatch, 0.5kg deodorant, 1.0kg bis(2,4-di-tert-butylphenyl) pentaerythritol diphosphite ( Antioxidant), and it is added together in the high-speed mixer and is stirred and mixed until uniform, and the mixture is obtained;

[0034] Step 2. Add the mixture obtained in Step 1 and 30kg of alkali-free chopped glass fibers into a twin-screw extruder with a lengt...

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Abstract

The invention relates to a low-odor flame-retardant nylon 6 composite material. The low-odor flame-retardant nylon 6 composite material is prepared from, by weight, 40-70 parts of nylon 6, 25-35 parts of glass fibers, 15-25 parts of a flame retardant, 0.2-2.0 parts of an antioxidant, 0.5-2.0 parts of a lubricating agent, 1.0-3.0 parts of color masterbatch, 1-2 parts of a toughening agent and 0.5 part of a deodorizing agent. The low-odor flame-retardant nylon 6 composite material is simple in preparation process, convenient to produce, good in flame-retardant effect, capable of meeting the requirement of a using environment where the odor grade is required to be lower than or equal to 3 and wide in market prospect. In addition, the invention provides a preparation method of the low-odor flame-retardant nylon 6 composite material.

Description

technical field [0001] The invention relates to a nylon composite material, in particular to a low-odor flame-retardant nylon 6 composite material and a preparation method thereof. Background technique [0002] Due to its good flame retardant effect, flame retardant nylon 6 is widely used in high-speed rail bellows, terminal posts, connectors, connectors, connector fans, coil shafts, relays, sensors, central electrical panels, high-power circuit breakers, switchboards, sockets , switchgear, plugs, circuit boards, lamp housings, TV housings, power tool accessories and other products. The preparation of flame-retardant nylon 6 mainly relies on adding flame retardants to nylon 6 through physical methods. This method can prepare flame-retardant nylon 6 materials with better flame-retardant properties. Its flame retardants are classified according to effective elements, and can be divided into phosphorus-based, chlorine-based, bromine-based and antimony-based, aluminum-based, bo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/02C08L51/06C08L83/04C08K13/04C08K7/14C08K5/3492C08K3/32C08K5/20C08K5/526
CPCC08L77/02C08K2201/014C08L2201/02C08L2205/03C08L51/06C08L83/04C08K13/04C08K7/14C08K5/34928C08K2003/324C08K5/20C08K5/526
Inventor 陆建华
Owner NINGBO EAGLE NEW MATERIAL
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