Polypropylene electret master batch material, method for preparing same and application of polypropylene electret master batch material

A polypropylene and electret technology, which is applied in the field of polypropylene electret masterbatch materials and its preparation, can solve the problems of high resistance, low filtration efficiency of melt-blown polypropylene fibers, high electret voltage, etc., and achieve high yield, Electret effect is obvious, the effect of reducing the electret voltage

Pending Publication Date: 2019-02-19
联泓(江苏)新材料研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing technology directly performs electret treatment on melt-blown polypropylene fibers, which requires a higher electret voltage (up to 30kV), and there are defects such as low filtration efficiency and large resistance of melt-blown polypropylene fibers after electret treatment.

Method used

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  • Polypropylene electret master batch material, method for preparing same and application of polypropylene electret master batch material
  • Polypropylene electret master batch material, method for preparing same and application of polypropylene electret master batch material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Using 87.6 parts of PP (homopolypropylene PPH, melt index 1000g / 10min), 12 parts of N,N'-ethylene bisstearamide, 0.2 parts of antioxidant, 0.2 parts of sebacic acid bis-2 , 2,6,6-tetramethylpiperidinol ester. Mixed by a high-speed mixer, transferred to a twin-screw extruder with a total of 12 sections of barrels with an aspect ratio of 48 for melt blending and extrusion, the temperature of the melting section is 160-210°C, granulation and drying of the particles to obtain polypropylene electret granular material.

Embodiment 2

[0039] Use 87.6 parts of PP (homopolypropylene PPH, melt index 1000g / 10min), 12 parts of natural wax, 0.2 part of antioxidant, and 0.2 part of 2-hydroxy-4-methoxybenzophenone. Mixed by a high-speed mixer, transferred to a twin-screw extruder with a total of 12 sections of barrels with an aspect ratio of 48 for melt blending and extrusion, the temperature of the melting section is 160-210°C, granulation and drying of the particles to obtain polypropylene electret granular material.

Embodiment 3

[0041] Using 87.6 parts of PP (homopolypropylene PPH, melt index 1000g / 10min), 12 parts of plexiglass, 0.2 parts of antioxidant, 0.2 parts of 2-hydroxy-4-dodecyloxybenzophenone . Mixed by a high-speed mixer, transferred to a twin-screw extruder with a total of 12 sections of barrels with an aspect ratio of 48 for melt blending and extrusion, the temperature of the melting section is 160-210°C, granulation and drying of the particles to obtain polypropylene electret granular material.

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Abstract

The invention belongs to the technical field of high-polymer materials, and particularly relates to a polypropylene (PP) electret master batch material, a method for preparing the same and applicationof the polypropylene electret master batch material. The PP electret master batch material is mainly prepared from components including, by weight, 50-100 parts of polypropylene, 8-50 parts of electret agents, 0-3 parts of compatibilizers, 0.05-0.35 part of antioxidants and 0-3 parts of anti-aging agents. The components are molten and granulated to obtain the polypropylene electret master batch material. The polypropylene electret master batch material, the method and the application have the advantages that resin and auxiliaries are uniformly mixed with one another in melt blending modes, accordingly, obvious electret effects can be realized by melt-blow non-woven materials produced from the polypropylene electret master batch material prepared by the aid of the method, the melt-blow non-woven materials are high in filter efficiency and low in filter resistance, and the like.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a polypropylene (PP) electret masterbatch material and a preparation method and application thereof. Background technique [0002] Studies have shown that the particles caused by pollution in the air, especially those with an aerodynamic equivalent of less than or equal to 2.5 microns, are small in size and rich in toxic and harmful substances. These particles can stay in the air for a long time and are easily absorbed into the body to cause respiratory diseases, lung damage, cancer, cardiovascular diseases, reproductive system, fetal development and other diseases. Therefore, in the field of air purification, people pay more and more attention to the development of materials that can adsorb these particulate matter. At present, polymer materials that can adsorb these particles after polarization have become a research hotspot. The melt-blown polypropylene...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08K5/20C08K5/3435
CPCC08K5/20C08K5/3435C08L23/12
Inventor 韦景然吴集钱李成浪李方
Owner 联泓(江苏)新材料研究院有限公司
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