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Melt-blown non-woven material with electret effect and preparation method of melt-blown non-woven material

An electret and melt-blown technology, which is applied in the direction of melt spinning, textiles, papermaking, non-woven fabrics, etc., can solve problems such as the fluidity difference between electret masterbatch and melt-blown resin, so as to improve product quality, increase output, The effect of reducing production costs

Pending Publication Date: 2020-08-14
朴蓝聚烯烃科技发展(上海)有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a melt-blown nonwoven material with electret effect and a preparation method thereof in order to solve the above problems. During the production process of the melt-blown nonwoven material, the electret material is added together so that The electret material can be better dispersed in the melt-blown resin substrate, and it also solves the problem of the fluidity difference between the electret masterbatch and the melt-blown resin caused by the electret masterbatch method

Method used

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  • Melt-blown non-woven material with electret effect and preparation method of melt-blown non-woven material
  • Melt-blown non-woven material with electret effect and preparation method of melt-blown non-woven material
  • Melt-blown non-woven material with electret effect and preparation method of melt-blown non-woven material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Step 1: Prepare raw materials according to the components and parts by weight in Table 1;

[0032] Step 2: Mix the homopolypropylene, zinc stearate and fumed silica prepared in step 1 evenly with a high-speed machine to obtain the first compound, and add the first compound from the end of the screw extruder , melt extruded to form a melt, after the di-tert-butyl peroxide, maleic anhydride grafted polypropylene, antioxidant and anti-aging agent prepared in step 1 were mixed uniformly with a high-speed machine, the second compound was obtained , the second compound is added from the front end of the screw extruder, and mixed with the melt obtained after the first compound is melted and extruded to obtain a blended melt; the temperature of the melting section of the screw extruder is 160-220 ° C, And the screw extruder is provided with a twin-screw with an aspect ratio of 50;

[0033] Step 3: Cool and granulate the blended melt in Step 2.

Embodiment 2

[0035] Step 1: Prepare raw materials according to the components and parts by weight in Table 1;

[0036] Step 2: Mix the homopolypropylene, zinc stearate and calcium carbonate prepared in step 1 evenly with a high-speed machine to obtain the first compound, add the first compound from the end of the screw extruder, melt Extrude to form a melt, after the di-tert-butyl peroxide prepared in step 1, maleic anhydride grafted polypropylene, antioxidant and antiaging agent are mixed uniformly with a high-speed machine, the second compound is obtained, and The second compound is added from the front end of the screw extruder, and mixed with the melt obtained after the first compound is melted and extruded to obtain a blended melt; the temperature of the melting section of the screw extruder is 160-220 ° C, and the screw extruder The extruder is equipped with a twin-screw with an aspect ratio of 50;

[0037] Step 3: Cool and granulate the blended melt in Step 2.

Embodiment 3

[0039] Step 1: Prepare raw materials according to the components and parts by weight in Table 1;

[0040] Step 2: After homogeneously mixing the homopolypropylene, polyethylene, zinc stearate and fumed silica prepared in step 1 with a high-speed machine, the first compound is obtained, and the first compound is fed from the screw extruder Add at the end of the compound, melt and extrude to form a melt, and mix the di-tert-butyl peroxide, maleic anhydride grafted polypropylene, antioxidant and anti-aging agent prepared in step 1 with a high-speed machine to obtain the second The second compound, the second compound is added from the front end of the screw extruder, mixed with the melt obtained after the first compound is melted and extruded, to obtain a blended melt; the temperature of the melting section of the screw extruder is 160- 220°C, and the screw extruder is equipped with twin-screws with an aspect ratio of 50;

[0041] Step 3: Cool and granulate the blended melt in S...

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Abstract

The invention discloses a melt-blown non-woven material which comprises the following components in parts by weight: 80-95 parts of polypropylene; 0-15 parts of polyethylene; 1-5 parts of an electretmaterial; 0.1 to 1 part of a peroxide; 0-2 parts of a compatilizer; 0.05 to 0.5 part of an antioxidant and 0.05 to 0.5 part of an anti-aging agent; the electret material is selected from one or more of fatty acid with the carbon atom number of 6-20 or salt thereof, fumed silica, titanium dioxide, calcium carbonate, talcum powder, polytetrafluoroethylene and polyvinylidene chloride. According to the melt-blown non-woven material with the electret effect and the preparation method of the melt-blown non-woven material, in the production process of the melt-blown non-woven material, the electret material is added together, so that the electret material can be better dispersed in a melt-blown resin base material, and meanwhile, the problem that the mobility difference between electret master batch and melt-blown resin is caused by adopting an electret master batch method is also solved.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a melt blown nonwoven material with electret effect and a preparation method thereof. Background technique [0002] Studies have shown that melt-blown polypropylene fibers treated with electret have the effect of adsorbing particles in the air due to the charge on the surface. Melt-blown polypropylene and related non-woven materials have been widely used in air purification and medical and health fields, such as air conditioning filters, medical protective masks and dust masks. However, the addition of electret materials is currently achieved by preparing functional masterbatches. The dispersion of the electret material in the electret masterbatch and the matching of the base resin and the melt-blown resin become the key. In actual production, because the actual amount of electret material added is very low, about 0.1-2%, it is difficult to achieve a completely uniform distribu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L51/06C08L23/06C08K13/04C08K7/26C08K5/11C08K5/098C08K13/02C08K3/26D01D5/08D01D5/30D04H1/541D04H1/56
CPCC08L23/12D04H1/541D04H1/56D01D5/08D01D5/30C08L2205/03C08K2003/265C08L51/06C08K13/04C08K7/26C08K5/11C08K5/098C08K13/02C08K3/26C08L23/06
Inventor 张文龙王艳丽
Owner 朴蓝聚烯烃科技发展(上海)有限公司
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