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A high oxygen index red phosphorus flame-retardant reinforced nylon 66 compound and its preparation method

A high oxygen index and composite technology, applied in the field of flame-retardant polymer materials, can solve problems such as not meeting the use requirements, and achieve the effects of increasing layer spacing, increasing oxygen index, and good synergistic effects

Active Publication Date: 2022-03-25
CHINA BLUESTAR CHENGRAND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Regardless of the above-mentioned patent documents, BASF's A3X2G5 and other products, as well as China Blue Chenguang's FRPA401G30 and other products, their flame retardancy can reach UL94 V-0, but the oxygen index value is only about 27, which cannot meet the requirements. Requirements for use of red phosphorus flame retardant reinforced nylon products in electronic appliances and other occasions where the aerobic index is required to be above 28

Method used

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  • A high oxygen index red phosphorus flame-retardant reinforced nylon 66 compound and its preparation method

Examples

Experimental program
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Effect test

Embodiment 1

[0030] A high oxygen index red phosphorus flame retardant reinforced nylon 66 composite, the composite is composed of the following components by weight percentage: nylon 66 resin 48%, red phosphorus flame retardant masterbatch 15%, halogen-free flame retardant synergy agent 6%, lubricant 0.8%, antioxidant 0.2%, glass fiber 30%;

[0031] Among them, Shenma EPR27 is used as the nylon 66 resin, the red phosphorus flame retardant masterbatch is medium blue morning light RPM440W, and the halogen-free flame retardant synergist is 4% melamine cyanurate (MCA) and 2% organic nano-montmorillonite ( OMMT), the lubricant is a mixture of 0.5% medium blue Chenguang GM-100 silicone powder and 0.3% silicone oil, and the antioxidant is a mixture of antioxidant 1098 and antioxidant 168 in a weight ratio of 1:1, The glass fiber is Jushi 1000 type chopped glass fiber.

[0032] Preparation method: Put the above-mentioned dried nylon 66 resin, red phosphorus flame retardant masterbatch, halogen-f...

Embodiment 2

[0034]A high oxygen index red phosphorus flame retardant reinforced nylon 66 composite, the composite is composed of the following components by weight percentage: nylon 66 resin 51%, red phosphorus flame retardant masterbatch 15%, halogen-free flame retardant synergy agent 3%, lubricant 0.7%, antioxidant 0.3%, glass fiber 30%;

[0035] Among them, the nylon 66 resin uses Shenma EPR27, the red phosphorus flame retardant masterbatch is RPM440W produced by Zhonglan Chenguang, the halogen-free flame retardant synergist is OMMT, and the lubricant is 0.5% pentaerythritol tetrastearate (PETS) and The mixture of 0.2% silicone oil, the antioxidant is a mixture of antioxidant 1098 and antioxidant 168 in a weight ratio of 1:1, and the glass fiber is Jushi 940 long glass fiber.

[0036] The preparation method is the same as in Example 1.

Embodiment 3

[0038] A high oxygen index red phosphorus flame retardant reinforced nylon 66 composite, the composite is composed of the following components by weight percentage: nylon 66 resin 54%, red phosphorus flame retardant masterbatch 17%, halogen-free flame retardant synergy agent 3%, lubricant 0.8%, antioxidant 0.2%, glass fiber 25%;

[0039] Among them, the nylon 66 resin is Huafeng EP158, the red phosphorus flame retardant masterbatch is RPM440W produced by Zhonglan Chenguang, the halogen-free flame retardant synergist is 1% MCA and 2% OMMT, and the lubricant is 0.5% Zhonglan The mixture of Chenguang GM-100 silicone powder and 0.3% silicone oil, the antioxidant is a mixture of antioxidant 1098 and antioxidant 168 in a weight ratio of 1:1, and the glass fiber is Jushi 940 long glass fiber.

[0040] The preparation method is the same as in Example 1.

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Abstract

The invention discloses a high oxygen index red phosphorus flame-retardant reinforced nylon 66 composite and a preparation method thereof. The red phosphorus flame-retardant reinforced nylon 66 composite is composed of the following components in weight percentage: nylon 66 resin 47-55 %, red phosphorus flame retardant masterbatch 13-17%, halogen-free flame retardant synergist 3-8%, lubricant 0.5-1.0%, antioxidant 0.2-0.5%, glass fiber 25-35%. After each component is mixed in a high-speed mixer, it is obtained by melting, extruding and granulating through a twin-screw extruder. The preparation process is simple and easy to control. The prepared red phosphorus flame-retardant reinforced nylon 66 compound can meet the requirements of electronic appliances and other fields. It requires an oxygen index of 28 or more, and the mechanical properties and other properties are well maintained, with good product performance.

Description

technical field [0001] The invention relates to the technical field of flame retardant polymer materials, in particular to a high oxygen index red phosphorus flame retardant reinforced nylon 66 compound and a preparation method thereof. Background technique [0002] Nylon (PA) is a basic resin with the largest output, the most varieties, the most widely used and excellent comprehensive properties among the five general engineering plastics. It is widely used in machinery, automobiles, aerospace, electronics, electrical appliances and other fields. Among nylon resins, nylon 6 and nylon 66 are the two most widely used nylon materials. Unmodified nylon 6 and nylon 66 have poor flame retardancy and cannot meet the resistance requirements of automobiles, electronic appliances, etc. The use of occasions requiring combustion. As an important variety of modified nylon, flame retardant reinforced nylon mainly includes halogen flame retardant, phosphorus nitrogen flame retardant, red...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L77/06C08L83/04C08K13/06C08K7/14C08K3/02C08K5/3492C08K9/04C08K3/34C08K5/20C08K5/526C08K7/00C08K5/103
CPCC08L77/06C08K2201/011C08K2003/026C08L2201/02C08L2201/22C08L2201/08C08L2205/03C08L2205/025C08L83/04C08K13/06C08K7/14C08K3/02C08K5/34928C08K9/04C08K3/346C08K5/20C08K5/526C08K7/00C08K5/103
Inventor 陈先敏兰修才李谦唐勇
Owner CHINA BLUESTAR CHENGRAND CO LTD