Efficient enhanced type halogen-free flame-retardant functional master batch for direct injection molding of nylon 6 and preparation method of efficient enhanced type halogen-free flame-retardant master batch

A technology of injection molding and functional masterbatch, which is 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 the improvement of enhanced efficiency, high flow characteristics and excellent dispersion effect. Effect

Active Publication Date: 2019-02-22
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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  • Efficient enhanced type halogen-free flame-retardant functional master batch for direct injection molding of nylon 6 and preparation method of efficient enhanced type halogen-free flame-retardant master batch

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] glass fiber

70.0kg

High Flow Nylon 6

20.0kg

Four-arm star nylon 6

5.7kg

Maleic anhydride grafted sodium ion crosslinked ethylene-octene-acrylic acid copolymer elastic ionomer

4.0kg

antioxidant

300.0g

[0038] The antioxidants are 1,3,5-trimethyl-2,4,6-(3,5-di-tert-butyl-4-hydroxybenzyl)benzene (trade name 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] Aluminum methyl ethyl hypophosphite

60.0kg

Melamine cyanurate

20.0kg

Zinc borate

5.0kg

...

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] glass fiber

50.0kg

High Flow Nylon 6

35.0kg

Three-arm star nylon 6

4.7kg

Maleic anhydride grafted with zinc ions to crosslink ethylene-octene-acrylic acid copolymer elastic ionomer

10.0kg

antioxidant

300.0g

[0046] The antioxidants are 1,3,5-trimethyl-2,4,6-(3,5-di-tert-butyl-4-hydroxybenzyl)benzene (trade name 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] Ammonium polyphosphate

45.0kg

Melamine cyanurate

40.0kg

Zinc borate

3.0kg

Male...

Embodiment 3

[0052] 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:

[0053] glass fiber

60.0kg

High Flow Nylon 6

25.0kg

Three-arm star nylon 6

4.7kg

Maleic anhydride grafted barium ion crosslinked ethylene-octene-acrylic acid copolymer elastic ionomer

10.0kg

antioxidant

300.0g

[0054] The antioxidants are 1,3,5-trimethyl-2,4,6-(3,5-di-tert-butyl-4-hydroxybenzyl)benzene (trade name Antioxidant 1330) and bis( 2,4-dicumylphenyl) pentaerythritol diphosphite (trade name: Antioxidant S9228) is a compound composed of 1:1 mass ratio.

[0055] The mass ratio of the raw materials of the B masterbatch is as follows:

[0056] aluminum diethyl hypophosphite

30.0kg

Melamine polyphosphate

25.0kg

Melamine cyanurate

26....

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Abstract

The invention belongs to the technical field of plastic modification and processing, and particularly relates to an efficient enhanced type halogen-free flame-retardant functional master batch for direct injection molding of nylon 6 products and a preparation method of the efficient enhanced type halogen-free flame-retardant functional master batch. The functional master batch is formed by combining a mater batch A and a master batch B, the master batch A is prepared from the following materialss in percentage by weight: 50.0-70.0% of glass fibers, 20.0-35.0% of high-flow nylon 6 resin, 3.0-10.0% of maleic anhydride grafted elastic ionomer, 3.0-6.0% of star-shaped nylon 6 resin, and 0.1-0.3% of an antioxidant. Compared with traditional plastic functional master batches, the functional master batch prepared through the method avoids mutual modification efficiency loss caused by mutual shear abrasion of glass fibers and a flame retardant in the processing course of enhanced type halogen-free flame retardant nylon 6 modification systems, and meanwhile solves the problem of mismatched processing temperatures of the two modification systems is solved and remarkably enhances the modification efficiency of the two modification systems is remarkably enhanced; the mater batch has a feature of easy dispersion processing and can be directly and simply mixed with nylon 6 resin according tothe proportion and then subjected to injection molding, and an excellent modification effect can be achieved.

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 Applications(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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