Modified polypropylene master batch, modified melt-blown fabric material and improved melt-blown fabric processing method

A processing method, polypropylene technology, applied in the direction of non-woven fabrics, textiles and papermaking, etc., can solve the problems of high elongation at break, poor toughness, easy breakage, etc., to improve the stability of capture and charge storage, Effect of increasing crystallinity and reducing dosage

Pending Publication Date: 2020-11-06
苏州工业园区拓朴环保净化有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] At the same time, the melt-blown cloth will be mechanically pulled during the mask making process, so it has high requirements for

Method used

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  • Modified polypropylene master batch, modified melt-blown fabric material and improved melt-blown fabric processing method
  • Modified polypropylene master batch, modified melt-blown fabric material and improved melt-blown fabric processing method
  • Modified polypropylene master batch, modified melt-blown fabric material and improved melt-blown fabric processing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] Adopt 77 parts of polypropylene (melt index 1500g / 10min), 5 parts of low molecular weight polyethylene wax, 0.5 part of molecular weight regulator, 0.1 part of antioxidant 1010, 0.2 part of antioxidant 168, 2 parts of lubricant , 0.2 parts of trimesisamide derivatives, 3 parts of alkyl coupling agent, 12 parts of electret particles. Put them in a high-speed mixer and mix them in sequence, then transfer to a twin-screw co-extruder with an aspect ratio of 30 for melt blending and extrusion, the temperature of the melting section is 125-150°C, and after granulation, the particles are dried to obtain modified polystyrene Functional polypropylene masterbatch material.

Embodiment 2

[0060] Adopt 66 parts of polypropylene (melt index 1500g / 10min), 10 parts of low molecular weight polyethylene wax, 0.3 part of molecular weight modifier, 0.1 part of antioxidant 1010, 0.2 part of antioxidant 168, 2 parts of lubricant , 0.4 parts of trimesisamide derivatives, 5 parts of alkyl coupling agent, and 16 parts of electret particles. Put them in a high-speed mixer and mix them in sequence, then transfer to a twin-screw co-extruder with an aspect ratio of 30 for melt blending and extrusion, the temperature of the melting section is 125-150°C, and after granulation, the particles are dried to obtain modified polystyrene Functional polypropylene masterbatch material.

Embodiment 3

[0062] Adopt 71 parts of polypropylene (melt index 1500g / 10min), 8 parts of low molecular weight polyethylene wax, 0.4 part of molecular weight modifier, 0.1 part of antioxidant 1010, 0.2 part of antioxidant 168, 3 parts of lubricant , 0.3 parts of trimesisamide derivatives, 2 parts of alkyl coupling agent, 15 parts of electret particles. Put them into a high-speed mixer in order to mix them, transfer them to a twin-screw co-extruder with an aspect ratio of 30 for melt blending and extrusion, the temperature of the melting section is 125-150°C, and dry the particles after granulation to obtain the modified multi- Functional polypropylene masterbatch material.

[0063] In the actual preparation of melt-blown cloth, in addition to using the modified polypropylene masterbatch as a material, conventional polypropylene masterbatch can also be added, thereby reducing material costs and achieving an effective combination of cost and performance improvement of the final melt-blown clo...

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Abstract

The invention discloses a modified polypropylene master batch, a modified melt-blown cloth material and an improved melt-blown cloth processing method. The modified polypropylene master batch comprises polypropylene, an antioxidant, low molecular weight polyethylene wax, an alkyl coupling agent, electret particles, a lubricant and modified polypropylene, and the modified polypropylene at least comprises trimesoyl amide derivatives obtained by modifying trimesoyl amide. The invention provides a safer and more effective melt-blown cloth material. By adding the modified nucleating agent, the crystallinity of the polypropylene can be improved, and the capture and charge storage stability of space charges can be obviously improved along with the increase of the crystallinity and the size so that the dosage of the nano electret material can be reduced, the potential risk is reduced, the charge storage amount can be effectively increased, and the charge storage time can be effectively prolonged.

Description

technical field [0001] The invention relates to the field of filter materials, in particular to a modified polypropylene masterbatch, a modified melt-blown cloth material and an improved melt-blown cloth processing method. Background technique [0002] Melt-blown polypropylene nonwoven fabric, referred to as melt-blown fabric, is made of polypropylene melt extruded by an extruder and stretched by high-temperature airflow to form ultra-fine fibers, which are then wound and condensed into a fiber web by honeycomb porous rolls. It is made by bonding and strengthening in its own molten state. [0003] Melt-blown cloth is the core material of the mask. The melt-blown cloth uses polypropylene as the main raw material, and the fiber diameter can reach 1-5 microns. There are many voids, fluffy structure, and good wrinkle resistance. The ultrafine fibers with unique capillary structure increase the number and surface area of ​​fibers per unit area, so that the melt blown cloth has g...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08K5/20C08J3/22D04H1/544D04H1/56
CPCC08J3/226D04H1/544D04H1/56C08J2323/12C08J2423/12C08K5/20
Inventor 邵可为杨伟婷
Owner 苏州工业园区拓朴环保净化有限公司
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