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Black melt-blown polypropylene composition as well as preparation method and application thereof

A melt-blown polypropylene and composition technology, which is applied in the field of black melt-blown polypropylene composition and its preparation, can solve the problems that the surface modification ability of polytetrafluoroethylene cannot be exerted, polytetrafluoroethylene is difficult to melt-blown, etc. Achieve the effect of promoting dispersion and high blackness

Pending Publication Date: 2022-02-11
KINGFA SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, on the one hand, as a surface modifier, polytetrafluoroethylene with a weight average molecular weight of 50,000-150,000 cannot exert the surface modification ability of polytetrafluoroethylene; on the other hand, in the field of melt-blown polypropylene technology, High-molecular-weight polytetrafluoroethylene is difficult to obtain melt-blown cloth by melt-blown method

Method used

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Examples

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Embodiment Construction

[0024] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0025] The source of raw material used in embodiment and comparative example is as follows:

[0026] Melt-blown polypropylene resin A: brand name is HP560Y of BASELL, melt flow rate is 1200 g / 10min, test condition is 230°C, 2.16kg.

[0027] Melt-blown polypropylene resin B: the grade is Kingfa Technology’s PP-91500, the melt flow rate is 1500 g / 10min, and the test conditions are 230°C and 2.16kg.

[0028] Melt-blown polypropylene resin C: MF650Y of BASELL, with a melt flow rate of 1800 g / 10min, a...

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Abstract

The invention provides a black melt-blown polypropylene composition which comprises the following components in parts by weight: 100 parts of melt-blown polypropylene resin; 0.01 to 1 part of carbon black; and 0.1 to 2 parts of polyvinylidene fluoride, wherein the average particle size of the carbon black is 10 to 20 nm; and the melt flow rate of the polyvinylidene fluoride ranges from 5 g / 10 min to 30 g / 10 min, and the test conditions are 230 DEG C and 5 kg. According to the invention, by adding a specific amount of polyvinylidene fluoride in a specific melt flow rate range, uniform dispersion of carbon black can be realized, a filter screen and a spinneret plate cannot be blocked during melt-blowing, the obtained melt-blown cloth does not fall powder, and melt-blown filaments are uniform in thickness.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a black melt-blown polypropylene composition and its preparation method and application. Background technique [0002] Masks can effectively isolate bacteria and viruses and play a good protective role. As the "heart" of mask products, melt-blown cloth is produced by non-woven melt-blown technology to form ultra-fine fibers with high specific surface area, supplemented by electret The technology makes the melt-blown cloth have excellent filterability and oil absorption. [0003] The melt-blown cloth used in conventional masks is generally a natural color material, and due to the diversification of demand, black masks have also emerged as the times require, so there is an urgent need to prepare black melt-blown materials for black melt-blown cloth. There are generally two conventional preparation methods for black meltblown materials: scheme 1: blending and extruding gr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L27/16C08K3/04D04H1/56
CPCC08L23/12D04H1/56C08K2201/005C08L27/16C08K3/04Y02P70/62
Inventor 王爱东陈平绪叶南飚杨霄云陆湛泉赵治国李栋栋尹朝清姜向新程文建
Owner KINGFA SCI & TECH CO LTD
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