Electret high-melt-index polypropylene master batch and preparation method thereof

A polypropylene, high-body technology, applied in the field of electret high-melting index polypropylene masterbatch and its preparation, can solve the problems of increasing the electrostatic adsorption and negative ion sterilization ability of melt-blown cloth, the material is difficult to disperse, and the nozzle is easy to block, and achieves Avoid the problem of nozzle clogging, improve the filtering effect and reduce the resistance effect
CN111925588AInactive Publication Date: 2020-11-13海泰伲克(天津)实业有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
海泰伲克(天津)实业有限公司
Publication Date
2020-11-13
Estimated Expiration
Not applicable · inactive patent
Patent Text Reader

Abstract

The invention provides an electret high-melt-index polypropylene master batch and a preparation method thereof. The electret high-melt-index polypropylene master batch is prepared from the following components in percentage by weight: 95%-99% of polypropylene powder; 0.3%-2% of di-tert-butyl peroxide; 0.1%-0.3% of a nucleating agent; 0.2%-1% of an antioxidant; 0.1%-0.5% of a lubricant; and 0.2%-1%of a dielectric medium. The preparation method comprises the following steps: mixing raw materials; feeding the mixed materials into an extruder; carrying out a vacuum de-volatilization treatment onthe materials in the extruder; cooling, molding, dicing; sieving, transferring, and drying. The problems of difficult dispersion, easy nozzle blockage, instability and easy drifting of a single polypropylene particle material can be solved; the electrostatic adsorption and negative ion sterilization capabilities of melt-blown cloth are improved, and droplets, dust, and viruses with a size less than microns are effectively blocked.
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Description

technical field

[0001] The application relates to the technical field of polymer materials, in particular to a kind of electret high melting point polypropylene masterbatch and a preparation method thereof. Background technique

[0002] Studies have shown that the particles caused by pollution in the air, especially those with an aerodynamic equivalent of 2.5 microns or less, 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 injury, carcinogenicity, cardiovascular disease, 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 fiber filter mater...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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