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Preparation method of flame-retardant PA6 material with high adhesive strength

A high-viscosity and tackifier technology, applied in the field of plastic materials, can solve the problem of unreliable bonding of junction boxes, and achieve better mechanical enhancement effect, enhanced toughness and strength, and increased bonding performance.

Pending Publication Date: 2022-07-08
SUZHOU POLYMER NEW MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when nylon material is applied to the photovoltaic junction box, there is usually a problem of unreliable bonding with the subsequent junction box.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A preparation method of high-adhesion flame-retardant PA6 material, in parts by weight, comprising the following steps:

[0034] (1) Wipe the surface of PA6 with acetone, remove oil stains and dry, and use a plasma treatment machine to perform surface treatment on PA6, the instrument power is 1000W, the distance is 10mm, the treatment time is 60s, and the treatment atmosphere is air to obtain modified PA6;

[0035] (2) Mix 100 parts of modified PA6 with 5 parts of xylene, stir evenly, add 20 parts of water to premix for 30min, and heat up to 80°C;

[0036] (3) add 10 parts of maleic anhydride and 1 part of benzoyl peroxide to react for 0.5h, repeat 3 times, and finally react 1.5h to finish;

[0037] (4) carry out hot water washing after product filtration, dry to obtain maleic anhydride graft-modified PA6;

[0038] (5) Mix 60 parts of maleic anhydride graft-modified PA6, 10 parts of halogen-free sulfonate, 10 parts of carbon-silicon mesh, 1 part of tackifier and 0.5 pa...

Embodiment 2

[0052] A preparation method of high-adhesion flame-retardant PA6 material, in parts by weight, comprising the following steps:

[0053](1) Wipe the surface of PA6 with acetone, remove oil stains and dry, and use a plasma treatment machine to perform surface treatment on PA6, the instrument power is 1000W, the distance is 10mm, the treatment time is 60s, and the treatment atmosphere is air to obtain modified PA6;

[0054] (2) Mix 100 parts of modified PA6 with 6 parts of xylene, stir evenly, add 20 parts of water to premix for 30min, and heat up to 80°C;

[0055] (3) add 11 parts of maleic anhydride and 1 part of benzoyl peroxide to react 0.5h, repeat 3 times, and finally react 1.5h to finish;

[0056] (4) carry out hot water washing after product filtration, dry to obtain maleic anhydride graft-modified PA6;

[0057] (5) Mix 60 parts of maleic anhydride graft-modified PA6, 11 parts of halogen-free sulfonate, 15 parts of carbon-silicon mesh, 1 part of tackifier and 0.6 part of...

Embodiment 3

[0066] A preparation method of high-adhesion flame-retardant PA6 material, in parts by weight, comprising the following steps:

[0067] (1) Wipe the surface of PA6 with acetone, remove oil stains and dry, and use a plasma treatment machine to perform surface treatment on PA6, the instrument power is 1000W, the distance is 10mm, the treatment time is 60s, and the treatment atmosphere is air to obtain modified PA6;

[0068] (2) Mix 100 parts of modified PA6 with 7 parts of xylene, stir evenly, add 20 parts of water to premix for 30min, and heat up to 90°C;

[0069] (3) add 12 parts of maleic anhydride and 1.5 parts of benzoyl peroxide to react 0.5h, repeat 3 times, and finally react 1.5h to finish;

[0070] (4) carry out hot water washing after product filtration, dry to obtain maleic anhydride graft-modified PA6;

[0071] (5) Mix 60 parts of maleic anhydride graft-modified PA6, 12 parts of sulfinate, 15 parts of carbon-silicon mesh, 2 parts of tackifier and 0.7 part of antioxi...

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PUM

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Abstract

The invention provides a preparation method of a high-bonding-force flame-retardant PA6 material, which comprises the following steps: removing oil on the surface of PA6, drying, and treating the surface of the PA6 by using a plasma treatment machine; mixing the modified PA6 with xylene, uniformly stirring, adding water for premixing, and heating; maleic anhydride and benzoyl peroxide are added for a reaction; filtering the product, washing with hot water, and drying to obtain maleic anhydride grafted modified PA6; the preparation method comprises the following steps: uniformly mixing maleic anhydride grafted modified PA6, a flame retardant, a carbon silicon net, a tackifier and an antioxidant, and carrying out melt blending by using a double-screw extruder; cooling extruded material strips through a water tank, and cutting the cooled extruded material strips into particles; and the granules are dried and then subjected to injection molding. According to the invention, PA6 is treated by plasma, and the surface of PA6 is modified, so that oxygen-containing and nitrogen-containing polar groups are generated on the surface of PA6, the PA6 can be grafted with maleic anhydride more easily, and meanwhile, the polarity and the adhesive property are improved.

Description

technical field [0001] The invention relates to the field of plastic materials, in particular to a preparation method of a high-adhesion flame-retardant PA6 material. Background technique [0002] Nylon 6 (PA6) is an aliphatic linear linear macromolecule H-[NH(CH 2 )XCO] n -OH, straight chain with methylene (-CH 2 ), which are mainly connected by amide bonds, and the molecular configuration is plane zigzag. The molecular structure and crystal structure of PA6 determine its properties and product performance. Due to the presence of a large number of strong polar amide groups in the PA6 molecule, its hygroscopicity is superior to that of general chemical fibers, and it is easier to promote the formation of hydrogen bonds between the macromolecular chains of the PA6 macromolecules when they are arranged, thereby improving the PA6 molecular chain. , reducing the mobility of the PA6 molecular chain, making the arrangement between the PA6 molecular chains more regular, so PA6 ...

Claims

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Application Information

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IPC IPC(8): C08L51/08C08L63/00C08K5/42C08K3/04C08K9/04C08K7/00
CPCC08L51/08C08K2201/011C08L2201/02C08L63/00C08K5/42C08K3/046C08K9/08C08K7/00Y02E10/50
Inventor 翟红波杨振枢韦洪屹黄金鹏
Owner SUZHOU POLYMER NEW MATERIALS TECH