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A kind of flame-retardant polyamide material and preparation method thereof

A technology of flame-retardant polyamide and polyamide, which is applied in the field of flame-retardant polyamide materials and its preparation, can solve problems such as low tracking index, unsafe use, and soaring price of antimony trioxide, so as to improve the low CTI value Unsafe, low price, and the effect of solving the shortage of antimony resources

Active Publication Date: 2017-12-15
HEFEI GENIUS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the use of antimony trioxide as a flame retardant synergist has a relatively low tracking index (CTI), usually lower than 300V, it is unsafe to use; and according to the requirements issued by the Ministry of Land and Resources in 2011 to control the total amount of antimony ore mining , the continued shortage of antimony resources has led to a continuous rise in the price of antimony trioxide, so the search for alternatives to antimony trioxide has been put on the agenda

Method used

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  • A kind of flame-retardant polyamide material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] (1) First, 40.9 parts of polyamide EPR24, 0.2 parts of lubricant ethylene bis stearic acid amide EBS (P-130), 0.3 parts of lubricant calcium stearate, 0.1 part of white oil and 0.3 parts of antioxidant 1098 168 parts and 0.2 parts of antioxidant 168 are mixed together, then 21 parts of halogenated flame retardant polybrominated styrene PBS-64HW is added, and 7 parts of phosphogypsum powder are mixed together to obtain a mixed material;

[0048] (2) Add the mixed material in (1) from the main feeding port of the twin-screw extruder, and then add 30 parts of the reinforcing modifier non-alkali glass fiber from the side feeding port of the extruder, and melt and extrude , cooling, and pelletizing to obtain flame-retardant polyamide materials; the temperatures of the twin-screw extruder from the feed section to the machine head are 240°C, 275°C, 280°C, 275°C, 270°C, 265°C, and 265°C, respectively. ℃ and 260 ℃, the die head temperature is 270 ℃.

Embodiment 2

[0050] (1) First mix 36 parts of polyamide M1013B, 0.2 parts of antioxidant 1010, 0.3 parts of antioxidant 168, 0.3 parts of lubricant polyethylene wax A-C540A, and 0.2 parts of lubricant TAF, and then Add 10 parts of halogenated flame retardant brominated polystyrene SAYTEX 621 and 3 parts of phosphogypsum powder and mix together to obtain a mixed material;

[0051] (2) Add the mixed material in (1) from the main feed of the twin-screw extruder, and then add 50 parts of the reinforcing modifier non-alkali glass fiber from the feeding port of the extruder, and melt extrusion, Flame-retardant polyamide materials can be obtained by cooling and pelletizing; the temperature of the twin-screw extruder from the feed section to the head is: 210°C, 230°C, 245°C, 245°C, 240°C, 235°C, 230°C °C and 230 °C, the die head temperature is 235 °C.

Embodiment 3

[0053] (1) First, 20 parts of polyamide EPR24 and 16.7 parts of M1013B, 0.3 parts of antioxidant 1010, 0.3 parts of lubricant ethylene bis stearamide EBS (P-130), and 1.5 parts of polyethylene wax A-C540A , 0.2 parts of white oil 36#, 1 part of silicone masterbatch GM-100, and then add 25 parts of halogenated flame retardant brominated epoxy resin KBE-2025K, and 1 part of phosphogypsum powder to get a mixture material;

[0054] (2) Add the mixed material in (1) from the main feed of the twin-screw extruder, and then add 20 parts of the reinforcing modifier non-alkali glass fiber from the feeding port of the extruder, and melt extrusion, Flame-retardant polyamide materials can be obtained by cooling and sharpening; the temperature of the twin-screw extruder from the feed section to the head is respectively: 220°C, 260°C, 265°C, 265°C, 260°C, 255°C, 260°C ℃ and 260℃, the die head temperature is 260℃.

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Abstract

The invention provides a flame-retardant polyamide material and a preparation method thereof. The flame-retardant polyamide material is prepared by weight percentage from polyamide, halogen flame retardant, phosphogypsum powder, lubricant, antioxidant, and reinforcing modifier. to make. The invention uses phosphogypsum powder to completely replace antimony trioxide, effectively solving the problem of antimony resource shortage; moreover, the price of phosphogypsum powder is lower than that of antimony trioxide, which reduces the production cost of flame-retardant polyamide materials and is beneficial to flame-retardant polyamide materials. The promotion of amide materials in the market has improved the comparative tracking index CTI.

Description

technical field [0001] The invention relates to the field of polymer composite materials, in particular to a flame-retardant polyamide material and a preparation method thereof. Background technique [0002] Polyamide fiber, commonly known as nylon, referred to as PA, is a general term for thermoplastic resins containing repeated amide groups—[NHCO]—on the main molecular chain. Polyamide not only has excellent mechanical properties, but also has good self-lubrication and chemical corrosion resistance, so it is a widely used engineering plastic. However, unmodified polyamides have poor flame retardancy and are prone to fires during use. Therefore, when it is applied in the fields of electronic appliances and other fields, it is necessary to modify the flame retardant of polyamide. Among them, the types of flame retardants used for flame retardant modification of polyamide mainly include halogen, phosphorus, nitrogen, nitrogen-phosphorus, etc. . At present, halogenated flam...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L77/06C08L77/02C08L63/00C08L25/18C08L25/06C08K13/04C08K5/03C08K3/30C08K7/14B29C47/92B29C48/92
CPCB29B9/06C08J3/223C08J2377/02C08J2377/06C08J2483/04C08K2201/003C08L77/02C08L77/06C08L2201/02C08L2205/02C08L2205/03C08L2205/035C08L91/00C08L25/18C08K13/04C08K7/14C08K5/098C08K2003/3045C08L23/06C08L63/00C08L83/04C08K5/20C08K5/03
Inventor 杨桂生储卫国
Owner HEFEI GENIUS NEW MATERIALS