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Light-storage polyethylene composition, light-storage polyethylene material, preparation method and application thereof

A polyethylene and composition technology, applied in the field of light-storing polyethylene, can solve the problems of poor compatibility of the two-phase interface and uneven dispersion, and achieve the effects of improving dispersion, improving impact performance, and excellent luminous performance

Active Publication Date: 2021-09-24
神华(北京)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

[0011] The purpose of the present invention is to solve the problem of poor compatibility and uneven dispersion of the two-phase interface when the luminescent powder particles are blended with the polymer when preparing light-storage type rotomoulding grade polyethylene products, and provides a composition of light-storage type polyethylene, Light-storage polyethylene material and its preparation method and application, the light-storage polyethylene material has excellent light-emitting performance, and its impact performance meets the requirements of use

Method used

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  • Light-storage polyethylene composition, light-storage polyethylene material, preparation method and application thereof
  • Light-storage polyethylene composition, light-storage polyethylene material, preparation method and application thereof
  • Light-storage polyethylene composition, light-storage polyethylene material, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] Proportioning according to following parts by weight:

[0065] 3 parts of high-density polyethylene HDPE-1, 97 parts of cross-linked polyethylene-1, 3 parts of long-lasting luminous powder-1, 1.5 parts of maleic anhydride grafted polyethylene;

[0066] First, preliminarily mix long afterglow luminous powder-1, maleic anhydride grafted polyethylene, and HDPE-1, then add them into a twin-screw extruder, and perform melt blending, extrusion and granulation at a set head temperature of 200°C. Obtain luminescent plastic masterbatch;

[0067] Then, the luminescent plastic masterbatch and the cross-linked polyethylene-1 are melt-blended through a twin-screw extruder at 140° C. to obtain a luminescent polyethylene material.

[0068] The fluorescent intensity, room temperature notched impact strength and flexural modulus test results of the obtained light-storing polyethylene material are shown in Table 1.

Embodiment 2

[0070] Proportioning according to following parts by weight:

[0071] 5 parts of high-density polyethylene HDPE-3, 95 parts of cross-linked polyethylene-2, 5 parts of long-lasting luminous powder-1, 3 parts of maleic anhydride grafted POE;

[0072] First, preliminarily mix long afterglow luminous powder-1, maleic anhydride grafted POE, and HDPE-3, then add them into a twin-screw extruder, and carry out melt blending, extrusion and granulation at a set head temperature of 180°C to obtain Luminous plastic masterbatch;

[0073] Then, the luminescent plastic masterbatch and the cross-linked polyethylene-2 ​​are melt-blended through a twin-screw extruder at 160° C. to obtain a luminescent polyethylene material.

[0074] Table 1 shows the results of the fluorescence intensity, room temperature notched impact strength and flexural modulus test of the obtained light-storage polyethylene material.

Embodiment 3

[0076] Proportioning according to following parts by weight:

[0077] 2 parts of high-density polyethylene HDPE-2, 98 parts of cross-linked polyethylene-2, 2 parts of long-lasting luminous powder-1, 1 part of maleic anhydride grafted polyethylene;

[0078] First, preliminarily mix long afterglow luminous powder-1, maleic anhydride grafted polyethylene and HDPE-2, then add them into a twin-screw extruder, and carry out melt blending, extrusion and granulation at a set head temperature of 160°C. Obtain luminescent plastic masterbatch;

[0079] Then, the luminous plastic masterbatch and the cross-linked polyethylene-2 ​​are melt-blended through a twin-screw extruder at 150° C. to obtain a light-storage polyethylene material.

[0080] The fluorescent intensity, room temperature notched impact strength and flexural modulus test results of the obtained light-storing polyethylene material are shown in Table 1.

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Abstract

The invention relates to the field of light-storage polyethylene, and discloses a light-storage polyethylene composition, a light-storage polyethylene material, a preparation method and an application thereof. The composition of light-storing polyethylene contains polyethylene, crosslinked polyethylene, luminescent powder and compatibilizer; in the composition, the total amount of polyethylene and crosslinked polyethylene is 100 parts by weight, and the luminescent powder is 2-15 parts by weight, the compatibilizer is 1-10 parts by weight; wherein, the average particle diameter of the luminescent powder is 20-80 μm. The obtained light-storage polyethylene material has excellent light-emitting properties, and at the same time, the impact properties meet the use requirements.

Description

technical field [0001] The invention relates to the field of light-storage polyethylene, in particular to a composition of light-storage polyethylene, a method for preparing a light-storage polyethylene material from the composition, and a light-storage polyethylene material prepared by the method and a light-storage polyethylene material in a thermoplastic resin Application in forming process. Background technique [0002] Light-storing materials have the function of self-illumination. They can absorb visible light such as sunlight and lamps or ultraviolet light, and then emit light in the dark. They are also called luminescent materials and luminous materials. The luminous plastic products obtained by mixing light-storing materials with polyethylene resin can play the role of low-light indication and decoration, and have attracted more and more attention. [0003] At present, the light-storing material widely used in luminescent plastics is the rare earth europium ion (Eu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/06C08L51/06C08K3/24C08J3/22
Inventor 陈兰兰陈学连王曙光李亚飞
Owner 神华(北京)新材料科技有限公司
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