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Method for preparing luminous thermoplastic plastic parent particles

A thermoplastic and plastic masterbatch technology, which is applied in the direction of luminescent materials, chemical instruments and methods, etc., can solve the problems of unavoidable strong friction of ferrous metal materials, and the inability to obtain luminous effect luminous masterbatch, so as to reduce metal pollution and luminescence The effect of high brightness and light color

Inactive Publication Date: 2007-11-14
济南朗星科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, using the traditional process to prepare plastic masterbatches, long-lasting fluorescent materials (luminous powder) will inevitably rub strongly with ferrous metal materials, resulting in metal pollution, and it is impossible to obtain luminous masterbatches with good luminous effects

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Luminous powder strontium aluminate 4KG, polypropylene powder 6KG and EBS 0.04KG, mix evenly, spread in enamel or stainless steel trays, the thickness is about 1-2 cm. Put the tray with the mixture into an oven heated to 180-200°C, and fill the oven with protective gas such as nitrogen or argon at the same time. Heat for 10-20 minutes and the polypropylene melts. Remove tray from oven to cool. Take out the materials that are bonded into blocks from the tray, and crush them into small pieces less than 1 cm with a special plastic grinder. Use a twin-screw granulator to re-granulate the small pieces at 200-220°C to obtain polypropylene luminous masterbatches with low metal pollution, and the content of luminous powder is 40%. Small pieces can be directly used for injection molding luminous plastic products without granulation.

Embodiment 2

[0018] Luminous powder strontium aluminate 1KG, polyethylene powder 99KG and EBS 0.5KG, mix evenly, spread in enamel or stainless steel trays, the thickness is about 1-2 cm. Put the tray with the mixture into an oven heated to 180-200°C, and fill the oven with protective gas such as nitrogen or argon at the same time. Heat for 10-20 minutes, polyethylene melts. Remove tray from oven to cool. Take out the materials that are bonded into blocks from the tray, and crush them into small pieces less than 1 cm with a special plastic grinder. Use a twin-screw granulator to re-granulate the small pieces at 200-220°C, which is polyethylene luminous masterbatch with low metal pollution, and the content of luminous powder is 40%. Small pieces can be directly used for injection molding luminous plastic products without granulation.

Embodiment 3

[0020] Luminous powder strontium aluminate 90KG, ABS powder 10KG and EBS 1.5KG, mix evenly, spread in enamel or stainless steel tray, thickness about 1-2 cm. Put the tray with the mixture into an oven heated to 180-200°C, and fill the oven with protective gas such as nitrogen or argon at the same time. Heat for 10-20 minutes, ABS melts. Remove tray from oven to cool. Take out the materials that are bonded into blocks from the tray, and crush them into small pieces less than 1 cm with a special plastic grinder. Use a twin-screw granulator to re-granulate the small pieces at 200-220°C to obtain ABS luminous masterbatch with low metal pollution, and the content of luminous powder is 40%. Small pieces can be directly used for injection molding luminous plastic products without granulation.

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Abstract

The present invention is a new method and process of preparing long persistance phosphorescent material (noctilucent powder); its characteristic is that the melted thermoplastics is firstly used to enwarp the long persistance phosphorescent material (noctilucent powder), and in later processes, the friction between the long persistance phosphorescent material (noctilucent powder) and metal materials is reduced, the metal pollution is alleviated, and the high luminescent and light plastic master batch of the color long persistance phosphorescent material (noctilucent powder) will be acquired.

Description

technical field [0001] The invention belongs to the field of functional new materials and relates to a preparation method of luminous thermoplastic masterbatch. Background technique [0002] Rare earth and strontium aluminate-based long-lasting fluorescent materials are a recently developed long-lasting fluorescent material (luminous powder), which has been widely used due to its high brightness and long afterglow time. However, due to the high hardness of this type of material, after friction with iron-containing metal materials, the iron powder will darken the color of the material, reduce the brightness, and even lose the luminous effect. The industry calls this phenomenon "metal pollution". [0003] The long afterglow fluorescent material (luminous powder) is mixed with plastic to prepare luminous masterbatch, which has a very wide range of uses, and various luminous plastic products can be prepared by injection molding, extrusion and other methods. However, using the t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J3/12C08K3/24C08L23/00C08L55/02C08L25/06C08L77/00C08L67/00C08L69/00B29C47/38B29B9/12C09K11/02B29C48/395
CPCB29C48/40
Inventor 苏世民雷芳
Owner 济南朗星科技有限公司
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