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Halogen flame-retardant high-temperature nylon composition and preparation method thereof

A technology of composition and nylon, which is applied in the field of polymer composite materials, can solve the problems of low dosage, inability to obtain light-colored and white products, and discoloration of materials, and achieve the effect of improving discoloration

Inactive Publication Date: 2017-08-01
HEFEI GENIUS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The effect of brominated flame retardants and antimony trioxide synergistic flame-retardant nylon is very good, and the dosage is low, but when the two are used for flame-retardant high-temperature nylon, the material changes color, and light-colored and white products cannot be obtained

Method used

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  • Halogen flame-retardant high-temperature nylon composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] (1) Dry the high-temperature nylon PA MXD6 at a temperature of 100-120°C for 4-5 hours;

[0029] (2) Add 64.5 parts of dry PA MXD6, 0.3 parts of antioxidant 1098, and 0.2 parts of lubricant A-C540A into the high-speed mixer, and stir in the high-speed mixer for 1-2min; then add 25 parts of Halogenated flame retardant brominated polystyrene, 10 parts of zinc stannate;

[0030] (3) Stir the material weighed in the above step (2) in a high-speed mixer for 3-5min;

[0031] (4) Then the above-mentioned uniformly mixed material is added to the feeding port of the twin-screw extruder;

[0032] (5) The material is melted and extruded by a twin-screw extruder, and granulated;

[0033] The processing technology of the twin-screw extruder is as follows: the temperature of the first zone of the twin-screw extruder is 280°C, the temperature of the second zone is 300°C, the temperature of the third zone is 330°C, the temperature of the fourth zone is 330°C, the temperature of the f...

Embodiment 2

[0035] (1) Dry high-temperature nylon PA66 / 6T at a temperature of 100-120°C for 4-5 hours;

[0036] (2) Add 56 parts of dry PA66 / 6T, 0.5 parts of antioxidant 1098, and 0.5 parts of lubricant A-C540A into the high-speed mixer, and stir in the high-speed mixer for 1-2min; then add 20 parts of Halogenated flame retardant polybrominated styrene, 8 parts of zinc stannate;

[0037] (3) Stir the material weighed in the above step (2) in a high-speed mixer for 3-5min;

[0038] (4) Then the above-mentioned uniformly mixed material is added to the feeding port of the twin-screw extruder, and 15 parts of glass fibers are added through the side feeding port;

[0039] (5) The material is melted and extruded by a twin-screw extruder, and granulated;

[0040] The processing technology of the twin-screw extruder is as follows: the temperature of the first zone of the twin-screw extruder is 270°C, the temperature of the second zone is 290°C, the temperature of the third zone is 320°C, the te...

Embodiment 3

[0042] (1) Dry high-temperature nylon PA9T at a temperature of 100-120°C for 4-5 hours;

[0043] (2) Add 43.5 parts of dry PA9T, 1 part of antioxidant 1098, and 0.5 parts of lubricant A-C540A into a high-speed mixer, and stir in the high-speed mixer for 1-2 minutes; then add 20 parts of halogenated Flame retardant bromotriazine, 5 parts of zinc stannate;

[0044] (3) Stir the material weighed in the above step (2) in a high-speed mixer for 3-5min;

[0045] (4) Then the above-mentioned uniformly mixed material is added to the feeding port of the twin-screw extruder, and 30 parts of glass fibers are added through the side feeding port;

[0046] (5) The material is melted and extruded by a twin-screw extruder, and granulated;

[0047] The processing technology of the twin-screw extruder is as follows: the temperature of the first zone of the twin-screw extruder is 270°C, the temperature of the second zone is 290°C, the temperature of the third zone is 310°C, the temperature of ...

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Abstract

The invention belongs to the field of polymer composite materials, and discloses a halogen flame-retardant high-temperature nylon composition and a preparation method thereof. The composition comprises the following components in parts by weight: 40 to 65 parts of high-temperature nylon, 15 to 25 parts of halogen flame retardant, 2 to 10 parts of zinc stannate, 0 to 40 parts of glass fibre and 0.5 to 2 parts of other processing agents; the halogen flame-retardant high-temperature nylon composition is prepared by the following steps of adding the raw materials in a high-speed mixer, stirring for 3 to 5min in the high-speed mixer; adding the uniformly mixed materials in a charging hole of a twin-screw extruder; performing melt extrusion on the materials through the twin-screw extruder. The composition provided by the invention has balanced mechanical property, is light in color and easy to dye.

Description

technical field [0001] The invention belongs to the field of polymer composite materials, and in particular relates to a halogen-containing flame-retardant high-temperature nylon composition and a preparation method thereof. Background technique [0002] PA6 and PA66 are the most used in nylon, but PA66 has a higher melting point of 260 degrees in these two resins, which limits its use in some occasions with higher temperature resistance requirements. By introducing aromatic rings into the polyamide molecular chain, the heat resistance is greatly improved, and at the same time, the water absorption rate is reduced and the strength is improved. [0003] The effect of brominated flame retardants and antimony trioxide synergistic flame-retardant nylon is very good, and the dosage is low. However, when the two are used for flame-retardant high-temperature nylon, the material will change color, and light-colored and white products cannot be obtained. Contents of the invention ...

Claims

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Application Information

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IPC IPC(8): C08L77/06C08L25/04C08L25/18C08L33/16C08K13/04C08K7/14C08K3/24C08K5/20C08K5/3492B29C47/92B29C48/92
CPCC08L77/06B29C48/92B29C2948/9259B29C2948/92704C08K2201/003C08K2201/004C08L2201/02C08L2205/03C08L25/04C08L23/06C08K3/24C08K5/20C08L25/18C08K7/14C08K13/04C08K5/3492C08L33/16
Inventor 杨桂生吴安琪范继贤
Owner HEFEI GENIUS NEW MATERIALS
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