Black master batch for near-infrared classification as well as preparation method and application of black master batch

A black masterbatch and near-infrared technology, applied in the field of color masterbatch, can solve the problems of unrecognizable plastic products and the impact of recycled plastic product efficiency, and achieve the effects of easy identification, improved efficiency, and improved reflectivity

Active Publication Date: 2021-07-23
绍兴市上虞鸿越塑业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned related technologies, the inventor believes that carbon black has a strong absorption capacity for infrared light. When the garbage recycling equipment sorts and recycles plastic products containing black masterbatch, the garbage recycling equipment sends out information for identification. The near-infrared light of garbage is easily absorbed by carbon black, making plastic products unable to be recognized by garbage recycling equipment, which affects the efficiency of recycling plastic products

Method used

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  • Black master batch for near-infrared classification as well as preparation method and application of black master batch
  • Black master batch for near-infrared classification as well as preparation method and application of black master batch

Examples

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Embodiment 1-12

[0042] Embodiment 1 is taken as an example below for description.

Embodiment 1

[0043] The black masterbatch that embodiment 1 relates to is used for near-infrared classification, and its preparation method is as follows:

[0044] (1) Mix 80kg iron black, 5kg ferrous oxide powder, and 3kg sodium polyacrylate to obtain mixture 1;

[0045] (2) Add mixture 1 and 160kgPP into the kneader, and knead at 185°C to obtain mixture 2;

[0046] (3) Using 40kg of aluminum powder and mixture 2 as raw materials, the mixture 1 was added into a screw extruder, and extruded and granulated at 150°C to obtain black masterbatches for near-infrared classification.

[0047] As shown in Table 1, the difference between Examples 1-10 is mainly in the ratio of raw materials, and the difference in Examples 10-13 is mainly in the average particle size of iron black.

[0048] Table 1

[0049]

Embodiment 14

[0051] The difference between this example and Example 12 is that 30kg of steel slag is added to the formula, and the steel slag is kneaded together with other raw materials in step (2).

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Abstract

The invention relates to the technical field of master batch processing, and particularly discloses a black master batch for near-infrared classification as well as a preparation method and application of the black master batch. The black master batch is prepared from the following components in parts by weight: 160-220 parts of a resin matrix, 40-60 parts of reinforcing filler, 80-120 parts of iron black, 3-9 parts of a surfactant and 5-9 parts of an antioxidant; the preparation method comprises the following steps: (1) mixing the iron black, the antioxidant and the surfactant to obtain a mixture 1; (2) mixing the mixture 1 and a resin matrix to obtain a mixture 2; and (3) granulating by taking the reinforcing filler and the mixture 2 as raw materials to obtain the black master batch for near-infrared classification. The black master batch for near-infrared classification provided by the invention has relatively good reflection capability on near-infrared light and is easily identified by garbage recycling equipment, and after the black master batch for near-infrared classification is added into a plastic product for shading, the efficiency of recycling the plastic product can be improved.

Description

technical field [0001] This application relates to the technical field of color masterbatches, more specifically, it relates to a black masterbatch for near-infrared classification and its preparation method and application. Background technique [0002] Masterbatch is a plastic processing aid developed in the 1980s. It is an aggregate obtained by uniformly loading pigments in resin. By adding color masterbatches to plastic products, plastic products can have a variety of colors. Among them, the plastic products added with black masterbatch have the effect of absorbing visible light, and can be used to preserve substances that are easily decomposed under light. [0003] A black masterbatch is disclosed in the related art, which is made of the following components by weight: 150-200 parts of resin matrix, 70-120 parts of carbon black, 40-60 parts of reinforcing filler, and the preparation method of black masterbatch is as follows: : First weigh carbon black, reinforcing fil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L23/12C08L33/02C08K3/22C08K3/08C08K7/26C08K5/47C08J3/22
CPCC08J3/226C08J2423/12C08J2467/02C08J2433/02C08K2003/0812C08K2003/2275C08K2003/2268C08K7/26C08K5/47Y02W30/62
Inventor 田小军
Owner 绍兴市上虞鸿越塑业有限公司
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