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High glowing filament flame-retardant PA (polyamide)/PPO (polyphenyleneoxide) alloy and preparation method thereof

A high-glow wire and alloy technology, applied in the field of polymer materials, can solve the problems that cannot meet the requirements of glow wire

Inactive Publication Date: 2012-01-11
SHENZHEN KEJU NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, none of the flame-retardant nylons on the market can meet the glow wire requirements.
For example, the traditional flame-retardant PA / PPO alloy only focuses on flame-retardant to reach UL94 VO but never reaches the standard of non-ignition of glow wire at 850°C

Method used

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  • High glowing filament flame-retardant PA (polyamide)/PPO (polyphenyleneoxide) alloy and preparation method thereof
  • High glowing filament flame-retardant PA (polyamide)/PPO (polyphenyleneoxide) alloy and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] PA6 51.5% (weight percentage, the same below), PPO 15%, flame retardant 18%, flame retardant synergist 6%, compatibilizer 5%, toughening agent 4%, antioxidant 1010 / 168 0.2 / 0.2 %, other additives 0.1%.

[0036] Preparation method: first dry PA6, PPO and toughening agent in a vacuum drying oven at 80°C for 4 to 8 hours, weigh the dried PA6, PPO resin and various additives according to the proportion, and put all the raw materials into the The feeding hopper of the twin-screw extruder is melt-extruded and granulated; the processing technology is as follows: the temperature of the first zone of the twin-screw extruder is 140-180°C, the temperature of the second zone is 190-220°C, and the temperature of the third zone is 220-230°C. The temperature in the fourth zone is 230-250°C, the head is 180-220°C, the residence time is 2-3min, the pressure is 12-18MPa, and the screw speed is 130-150 rpm.

Embodiment 2

[0038] PA6 58.5% (weight percentage, the same below), PPO 10%, flame retardant 18%, flame retardant synergist 6, compatibilizer 4%, toughening agent 3%, antioxidant 1010 / 168 0.2 / 0.2% , Other additives 0.1%.

[0039] Preparation method: first dry PA6, PPO and toughening agent in a vacuum drying oven at 80°C for 4 to 8 hours, weigh the dried PA6, PPO resin and various additives according to the proportion, and put all the raw materials into the The feeding hopper of the twin-screw extruder is melt-extruded and granulated; the processing technology is as follows: the temperature of the first zone of the twin-screw extruder is 140-180°C, the temperature of the second zone is 190-220°C, and the temperature of the third zone is 220-230°C. The temperature in the fourth zone is 230-250°C, the head is 180-220°C, the residence time is 2-3min, the pressure is 12-18MPa, and the screw speed is 130-150 rpm.

Embodiment 3

[0041] PA6 63.6% (weight percentage, the same below), PPO 8%, flame retardant 18.5%, flame retardant synergist 6.2, compatibilizer 4%, toughening agent 3%, antioxidant 1010 / 168 0.2 / 0.2% , Other additives 0.3%.

[0042] Preparation method: first dry PA6, PPO and toughening agent in a vacuum drying oven at 80°C for 4 to 8 hours, weigh the dried PA6, PPO resin and various additives according to the proportion, and put all the raw materials into the The feeding hopper of the twin-screw extruder is melt-extruded and granulated; the processing technology is as follows: the temperature of the first zone of the twin-screw extruder is 140-180°C, the temperature of the second zone is 190-220°C, and the temperature of the third zone is 220-230°C. The temperature in the fourth zone is 230-250°C, the head is 180-220°C, the residence time is 2-3min, the pressure is 12-18MPa, and the screw speed is 130-150 rpm.

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Abstract

The invention discloses a high glowing filament flame-retardant PA (polyamide) / PPO (polyphenyleneoxide) alloy and a preparation method thereof. The high glowing filament flame-retardant PA / PPO alloy consists of the following components in percentage by weight: 55 to 70 percent of PA6, 5 to 15 percent of PP0, 2 to 5 percent of compatilizer, 2 to 4 percent of toughening agent, 18 to 20 percent of flame retardant, 6 to 6.5 percent of flame-retardant synergist, 0.2 to 0.6 percent of antioxidant and 0.1 to 0.3 percent of other auxiliaries. The flame retardant is brominated polystyrene. The flame-retardant synergist is sodium antimonate. In the invention, by selecting the suitable flame retardant with high compatibility with the PA and the PPO, the high glowing filament flame-retardant PA / PPO alloy with excellent mechanical property can be obtained and the standard that glowing filaments are not ignited at a temperature of 850 DEG C can be reached.

Description

[technical field] [0001] The invention relates to the technical field of polymer materials, in particular to a high glow wire flame-retardant PA / PPO alloy and a preparation method thereof. [Background technique] [0002] PA6 (polyamide 6 or nylon 6) is a translucent or opaque milky white semi-crystalline polymer, which is characterized by excellent thermodynamic properties, light weight, good toughness, good chemical resistance and durability, and good wear resistance , Self-lubrication. At present, pure nylon flame retardant material glow wire can only reach 750°C for 30 seconds without burning. [0003] PPO (polyphenylene ether) is non-toxic, transparent, good heat resistance, high mechanical strength, good water resistance, good dimensional stability, and good flame retardant effect. agent can reach UL94 V-O level. [0004] The new Australian standard will be officially implemented on October 30, 2010. The new standard requires non-metallic materials to pass the glow w...

Claims

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Application Information

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IPC IPC(8): C08L77/02C08L71/12C08L25/18C08K13/02C08K3/24B29B9/06B29C47/92B29C48/92
Inventor 徐东徐永邢家思
Owner SHENZHEN KEJU NEW MATERIAL
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