A high-efficiency enhanced halogen-free flame-retardant functional masterbatch for nylon 6 direct injection molding and its preparation method

A technology of injection molding and functional masterbatch, applied in the field of high-efficiency reinforced halogen-free flame retardant functional masterbatch and its preparation, can solve problems such as mismatching processing temperature, and achieve enhanced enhancement efficiency, improved modification efficiency, and high flow characteristics. Effect

Active Publication Date: 2021-12-28
江苏万纳普新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The following technical advantages can be obtained by using the method of processing the two masterbatches separately: ① avoiding the direct blending of glass fiber and phosphorus / nitrogen flame retardants to generate internal friction and heat generation, resulting in the decomposition of phosphorus / nitrogen flame retardants; ② Solved the problem of mismatching processing temperature of glass fiber-reinforced nylon 6 and phosphorus-nitrogen compound flame-retardant nylon 6 two modified systems for melt blending; ③Using melt pultrusion technology to prepare a masterbatch that is stronger than traditional chopped glass fiber Reinforced masterbatch with larger fiber aspect ratio

Method used

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  • A high-efficiency enhanced halogen-free flame-retardant functional masterbatch for nylon 6 direct injection molding and its preparation method
  • A high-efficiency enhanced halogen-free flame-retardant functional masterbatch for nylon 6 direct injection molding and its preparation method
  • A high-efficiency enhanced halogen-free flame-retardant functional masterbatch for nylon 6 direct injection molding and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A high-efficiency enhanced halogen-free flame-retardant functional masterbatch for nylon 6 direct injection molding, which is composed of two masterbatches A and B. The quality ratio of the raw materials for the A masterbatch is as follows:

[0037]

[0038] Antioxidant is 1,3,5-trimethyl-2,4,6-(3,5-di-tert-butyl-4-hydroxybenzyl)benzene (trade name is antioxidant 1330) and bis( 2,4-dicumylphenyl) pentaerythritol diphosphite (trade name: Antioxidant S9228) is a compound composed of 1:1 mass ratio.

[0039] The mass ratio of the raw materials of the B masterbatch is as follows:

[0040]

[0041] The preparation method of A masterbatch is as follows: Weigh all the raw materials according to the above-mentioned mass ratio requirements, and then cross-link high-flow nylon 6 and maleic anhydride grafted sodium ion cross-linked ethylene-octene-acrylic acid copolymerized elastic ionomer pellets and four-arm star-shaped nylon 6 and antioxidant powder are put into differen...

Embodiment 2

[0044] A high-efficiency enhanced halogen-free flame-retardant functional masterbatch for nylon 6 direct injection molding, which is composed of two masterbatches A and B. The quality ratio of the raw materials for the A masterbatch is as follows:

[0045]

[0046] Antioxidant is 1,3,5-trimethyl-2,4,6-(3,5-di-tert-butyl-4-hydroxybenzyl)benzene (trade name is antioxidant 1330) and bis( 2,4-dicumylphenyl) pentaerythritol diphosphite (trade name: Antioxidant S9228) is a compound composed of 1:1 mass ratio.

[0047] The mass ratio of the raw materials of the B masterbatch is as follows:

[0048]

[0049]

[0050] The preparation method of A masterbatch is as follows: Weigh all the raw materials according to the above mass ratio requirements, and then cross-link high-flow nylon 6 and maleic anhydride grafted zinc ions into two kinds of pellets of ethylene-octene-acrylic acid copolymerized elastic ionomer and three-arm star-shaped nylon 6 and antioxidant powder are put int...

Embodiment 3

[0053] A high-efficiency enhanced halogen-free flame-retardant functional masterbatch for nylon 6 direct injection molding, which is composed of two masterbatches A and B. The quality ratio of the raw materials for the A masterbatch is as follows:

[0054]

[0055] Antioxidant is 1,3,5-trimethyl-2,4,6-(3,5-di-tert-butyl-4-hydroxybenzyl)benzene (trade name is antioxidant 1330) and bis( 2,4-dicumylphenyl) pentaerythritol diphosphite (trade name: Antioxidant S9228) is a compound composed of 1:1 mass ratio.

[0056] The mass ratio of the raw materials of the B masterbatch is as follows:

[0057]

[0058]The preparation method of A master batch is as follows: Weigh all the raw materials according to the above mass ratio requirements, and then cross-link the high-flow nylon 6 and maleic anhydride grafted barium ion cross-linked ethylene-octene-acrylic acid copolymerized elastic ionomer pellets and three-arm star-shaped nylon 6 and antioxidant powder are put into different hig...

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Abstract

The invention belongs to the technical field of plastic modification and processing, and in particular relates to a high-efficiency enhanced halogen-free flame-retardant functional masterbatch for direct injection molding of nylon 6 and a preparation method thereof; the functional masterbatch is produced by combining two masterbatches A and B The mass percentage composition of A masterbatch is as follows: glass fiber 50.0~70.0wt.%, high flow nylon 6 resin 20.0~35.0wt.%, maleic anhydride grafted elastic ionomer 3.0~10.0wt.%, star Nylon 6 resin 3.0-6.0wt.%, antioxidant 0.1-0.3wt.%; compared with traditional plastic functional masterbatches, the functional masterbatch prepared by the present invention avoids the enhanced halogen-free flame-retardant nylon 6 modification system During the processing, the mutual loss of modification performance is caused by the mutual shearing and abrasion of glass fiber and flame retardant, and at the same time, the problem of mismatching processing temperature of the above two modification systems is solved, and the modification performance of the two is significantly enhanced; the masterbatch It is easy to disperse and process, and can be directly mixed with nylon 6 resin according to the ratio and then injection molded, and can achieve excellent modification effect.

Description

technical field [0001] The invention belongs to the technical field of plastic modification and processing, and in particular relates to a high-efficiency enhanced halogen-free flame-retardant functional masterbatch which can be directly applied to injection molding processing of nylon 6 products and a preparation method thereof. Background technique [0002] Using twin-screw extruder to implement melt blending is a traditional method for plastic modification. Using the high-efficiency and excellent mixing performance of co-rotating twin-screw extruders, thermoplastics and various modified additives can be continuously melt-blended and extruded After granulation, the prepared modified special material will be used again for injection or extrusion processing to form various products. This technical route not only effectively improves the physical and mechanical properties of plastic products such as strength, toughness, stiffness, creep resistance, and flexure resistance, but...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L77/02C08L51/06C08K13/04C08K7/14C08K5/13C08K5/526C08K5/5313C08J3/22
CPCC08J3/226C08J2377/02C08K7/14C08K13/04C08K5/526C08K5/5313C08K5/13C08J2477/02
Inventor 李翰卿汪晓东邱小龙徐君琦
Owner 江苏万纳普新材料科技有限公司
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