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Black master batch and preparation method thereof

A black masterbatch, a special technology, applied in the field of plastic modification, can solve the problems of decreased customer acceptance, reduced product performance, product decomposition, etc., to improve product quality, increase output and production capacity, and shorten uniformity and strength. Effect

Active Publication Date: 2022-06-24
厦门长塑实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The Chinese patent application with publication number CN110564142A "A Black Matte Polyamide Film for Lithium Battery Outer Packaging and Its Preparation Method" mentions that it can be solved by adding an organic black colorant, but due to the decomposition of the organic black colorant The temperature is within the processing temperature range of polyamide products, and there is a hidden danger of product decomposition
At the same time, the film product has a heavy odor, which will affect the downstream use and reduce the performance of the product; in addition, the hue of the film produced by the organic black colorant is blue-purple. For the film product, it is different from the current mature product There are still some differences, and there will be a significant decline in customer acceptance

Method used

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  • Black master batch and preparation method thereof

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Effect test

Embodiment 1

[0054] The matte black polyamide film for a lithium ion battery in this embodiment includes a three-layer film structure, which are a matte black polyamide upper surface layer, a polyamide middle layer and a black polyamide lower surface layer in order from top to bottom. In parts by mass, the upper surface layer includes 5 parts of black masterbatch, 10 parts of toughening agent, 5 parts of matte agent, 2 parts of additives, and 78 parts of polyamide; the middle layer is 100 parts of polyamide amide; the lower layer includes 5 parts of black masterbatch, 10 parts of toughener, 2 parts of additives, and 83 parts of polyamide.

[0055] In this embodiment, the additive is selected from a mixture of three kinds of lubricants, opening agents and antioxidants in a ratio of 1:2:1; the lubricant is selected from erucamide; the antioxidant is selected from antioxidant 1098, antioxidant A mixture of three kinds of oxygen agent 168 and antioxidant SEED in a ratio of 2:1:2; the opening a...

Embodiment 2

[0075] The matte black polyamide film for lithium ion batteries in this embodiment has a three-layer film structure, and from top to bottom are the matte black polyamide upper surface layer, the polyamide middle layer and the black polyamide lower layer in order. In parts by mass, the upper surface layer includes 3 parts of black masterbatch, 10 parts of toughening agent, 3 parts of matte agent, 2 parts of additive, 82 parts of polyamide; the middle layer is 100 parts of polyamide amide; the lower layer includes 3 parts of black masterbatch, 10 parts of toughener, 2 parts of additives, 85 parts of polyamide.

[0076] In this embodiment, the additive is selected from a mixture of three kinds of lubricants, opening agents and antioxidants in a ratio of 1:2:1; the lubricant is selected from erucamide; the antioxidant is selected from antioxidant 1098, antioxidant A mixture of three kinds of oxygen agent 168 and antioxidant SEED in a ratio of 2:1:2; the opening agent is selected f...

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Abstract

The invention discloses a black master batch and a preparation method thereof. The black master batch is processed and prepared under the combined condition of a special thread element and a specific screw, and the special thread element comprises a conveying block, a conventional kneading block, a special multi-head kneading thread block and a tooth-shaped disc. The black auxiliary agent is prepared into the thin film, so that the thin film is low in glossiness and gives a soft effect to people, the black auxiliary agent is uniform in distribution and free of granular sensation, process defects in production are easy to recognize, and the thin film is particularly suitable for the field of packaging of high-grade lithium ion batteries.

Description

technical field [0001] The invention belongs to the technical field of plastic modification, and in particular relates to a black master batch for film flexible packaging and a preparation method thereof. Background technique [0002] There are two types of lithium-ion battery packaging: hard case packaging and soft case packaging. Among them, soft-pack lithium-ion batteries have the characteristics of high safety, small size, light weight and flexible design, and are widely used in different electronic products and energy storage products, such as mobile phones, tablet computers, wearable smart devices, electric bicycles , electric motorcycles, bluetooth headsets, etc. As a packaging film used in soft-pack lithium-ion batteries, its common structure is: nylon layer, adhesive layer, aluminum layer, adhesive layer and heat-sealing CPP layer. Among them, nylon layer, as one of the key materials, has high technical barriers and has been monopolized by foreign companies. It is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C48/57B29B9/06C08J3/22C08L77/00C08K3/04C08J5/18B32B27/34B32B27/20B32B27/06
CPCC08J3/226C08J5/18B32B27/34C08J2377/00C08J2477/00C08K3/04B29C48/57B29B9/06B32B27/20B32B27/08C08K3/042B32B2307/4026B32B2307/408B32B2457/10B32B2307/558Y02E60/10
Inventor 廖贵何林新土贾露李智尧陈曦
Owner 厦门长塑实业有限公司
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