Melting-expanded electret antibacterial master batch and processing technology and application thereof

An antibacterial masterbatch, electret technology, applied in the direction of single-component polyolefin rayon, chemical characteristics of fibers, textiles and papermaking, etc., can solve the problems of single function, high price, unable to meet the needs of the market, etc. Flow performance, improving melt index, effect of solving shortage

Inactive Publication Date: 2020-07-17
青岛中孚科力橡塑有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, due to the spread of the coronavirus, the market demand for masks and related materials has greatly increased. The current PP melt-blown materials have the following problems. The function is single, and the output cannot meet the market demand. The PP raw materials of Zhongrong Finger Fiber produced in the past can only be used Due to the production of non-woven fabrics, the requirements for the filtration effect of melt-blown materials for mask production cannot be met. The output of melt-blown materials that meet the requirements for filtration effects is insufficient and the price is extremely high, which cannot meet the needs of the market.

Method used

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  • Melting-expanded electret antibacterial master batch and processing technology and application thereof

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preparation example Construction

[0034] The preparation method of extended melt electret antibacterial masterbatch, heat polyethylene to 50 degrees Celsius, use a high-speed stirring pot to grind electret materials and peroxides, and blend plasticizers, lubricants, and antibacterial agents after the materials are ground , melt blending and extruding and granulating, and put into a twin-screw extruder with an aspect ratio of 48 to melt and extrude; the temperature of the melting section during melt blending and extrusion is 220 to 260 ° C, and granulate to dry the particles to obtain Extended fusion electret antibacterial masterbatch.

[0035] The use of expanded melt electret antibacterial masterbatch, adding 2 to 6% expanded melt electret antibacterial masterbatch to the fiber-grade PP raw material of Zhongrong Finger, can become a meltblown material for making medical mask meltblown cloth. Preferably, the proportion of the expanded melt electret masterbatch is 4%.

Embodiment 1

[0037] Heat 90 parts of PPY35 (homopolypropylene PPH) to 50 degrees Celsius, grind 2 parts of electret material tourmaline and 2 parts of peroxide DCP with a high-speed stirring pot, and grind 2 parts of the plasticized A semi-microcrystalline paraffin wax, 2 parts of lubricant stearic acid, 1 part of inorganic antibacterial agent are blended, melt blended, extruded and granulated, and melted and extruded in a twin-screw extruder with an aspect ratio of 48 ; The temperature of the melting section during melt blending and extrusion is 220-260 ° C, and the particles are dried by granulation to obtain the expanded melt electret masterbatch.

Embodiment 2

[0039] Heat 90 parts of PPY25 (homopolypropylene PPH) to 50 degrees Celsius, grind 2 parts of electret material graphene and 2 parts of peroxide 1010 with a high-speed stirring pot, and grind 1 part of the plasticized White oil, 0.5 part of lubricant zinc stearate and 0.5 part of antibacterial agent inorganic antibacterial agent are blended, melt blended and extruded and granulated, and put into a twin-screw extruder with an aspect ratio of 48 for melt extrusion out; the temperature of the melting section during melt blending and extrusion is 220-260°C, and the particles are dried by granulation to obtain an expanded-melt electret masterbatch.

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Abstract

The invention belongs to the technical field of high polymer materials, and particularly relates to a melting-expanded electret antibacterial master batch and a processing technology and application thereof. The master batch comprises the following components in parts by weight: 70-190 parts of polypropylene, 1-2 parts of a peroxide, 1-2 parts of an antioxidant, 1-2 parts of a plasticizer, 1-2 parts of a lubricant, 1-2 parts of an electret material and 1-2 parts of an antibacterial agent. The master batch has multiple functions, molecular weight breakage is caused by adding peroxide, the meltindex of the PP material is increased, the flowing property of the material is improved, and the material is easier to form. The electret material is added, so that the material can generate static electricity to adsorb viruses and particulate matters in air, and due to the antibacterial and bactericidal material in the material, the viruses and the particulate matters can be adsorbed to kill germs. Only a small amount (about 4%) of the material is added into a medium-melt-index fiber-grade PP raw material (only non-woven fabric can be used in the past), and the material can be applied to a melt-blown material, so that the problem of shortage of the melt-blown material is solved.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to an expanded fusion electret antibacterial masterbatch, its processing technology and application. Background technique [0002] At present, due to the spread of the coronavirus, the market demand for masks and related materials has greatly increased. The current PP melt-blown materials have the following problems. The function is single, and the output cannot meet the market demand. The PP raw materials of Zhongrong Finger Fiber produced in the past can only be used Due to the production of non-woven fabrics, it is impossible to meet the requirements of the filtration effect of melt-blown materials for mask production. The output of melt-blown materials that meet the requirements of filtration effects is insufficient and the price is extremely high, which cannot meet the needs of the market. Contents of the invention [0003] In order to improve the proble...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08K13/02C08K5/14C08K3/04C08K3/38C08K5/05C08K5/1545C08K3/015C08K5/3432C08J3/22D01F6/46D01F1/10
CPCC08J3/226D01F6/46D01F1/103C08J2323/12C08J2423/12C08K13/02C08K5/14C08K3/042C08K3/38C08K5/05C08K5/1545C08K5/0058C08K3/015C08K5/3432
Inventor 李灵江刘丽艳
Owner 青岛中孚科力橡塑有限公司
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