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Multifunctional polypropylene melt-blown material and preparation method thereof

A polypropylene melt-blown, multi-functional technology, applied in the field of polypropylene melt-blown materials, can solve the problems of cumbersome production process, uneven mixing, high energy consumption, etc., and achieve the goals of simplified production process, energy saving and high economic added value Effect

Pending Publication Date: 2020-12-01
陕西延长泾渭新材料科技产业园有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method has defects such as cumbersome production process, uneven mixing, high energy consumption, and high cost.

Method used

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  • Multifunctional polypropylene melt-blown material and preparation method thereof
  • Multifunctional polypropylene melt-blown material and preparation method thereof
  • Multifunctional polypropylene melt-blown material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Weigh 50kg of PP-H-GD-230 polypropylene, transport it to the co-rotating twin-screw extruder through the feeding screw, and then inject 251.3g of di-tert-butyl peroxide into the twin-screw extruder by the metering pump, melt Extrude the strands after blending, the extruded strands are cooled, dried, and pelletized, wherein the flow rate of the initiator is set at 15mL / min to 25mL / min, and the screw speed of the twin-screw extruder is at 200RPM to 250RPM. There are a total of 16 zones in the extrusion cylinder, and the temperature range of the 16 zones is set within the range of 160°C to 250°C; the multifunctional polypropylene melt blown material is obtained; the obtained multifunctional polypropylene melt blown material is produced through a homogenization bin finished product.

Embodiment 2

[0041] (1) Weigh 153.4g of nanoscale tourmaline powder, 102.2g of quantum energy particles, and 153.4g of powdered titanate coupling agent, and perform high-speed mechanical mixing in advance to form a mixture of functional additives.

[0042] (2) After mixing PP-H-GD-230 polypropylene 50kg, 1010 antioxidant 51.1g, 168 antioxidant 51.1g, calcium stearate 102.2g with the functional additive mixture obtained in (1), the Stir until well combined to form a mixture.

[0043] (3) The compound obtained in (2) is conveyed to the co-rotating twin-screw extruder through the feeding screw earlier, then 511.2 g of di-tert-butyl peroxide is squeezed into the twin-screw extruder by the metering pump, and melted together Extrude the strips after mixing, the extruded strips are cooled, dried, and pelletized. There are 16 zones in total, and the temperature range of the 16 zones is set within the range of 160°C to 250°C; the multifunctional polypropylene meltblown material is obtained; the ob...

Embodiment 3

[0045] (1) Weigh 127.6g of nanoscale tourmaline powder, 76.5g of quantum energy particles, and 102g of powder titanate coupling agent, and perform high-speed mechanical mixing in advance to form a functional additive mixture;

[0046] (2) After weighing 50kg of powder PP-H-GD-230 polypropylene, 51g of 1010 antioxidant, 51g of 168 antioxidant, 102g of calcium stearate and the mixture of functional additives obtained in (1), the Stir until well combined to form a mixture;

[0047] (3) The compound obtained in (2) is conveyed to the co-rotating twin-screw extruder through the feeding screw earlier, then 510.2 g of di-tert-butyl peroxide is squeezed into the twin-screw extruder by the metering pump, and melted together Extrude the strip after mixing, the extruded strip is cooled, dried and pelletized, wherein the flow rate of the initiator is set at 15mL / min~25mL / min, the screw speed of the twin-screw extruder is at 200RPM~250RPM, the extruder There are 16 zones in total for the ...

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Abstract

The invention discloses a multifunctional polypropylene melt-blown material and a preparation method thereof. The multifunctional polypropylene melt-blown material is prepared from the following raw materials: 97.8%-99.5% of polypropylene, 0%-0.3% of an electret, 0%-0.2% of an antibacterial agent, 0.5%-1% of an initiator, 0%-0.3% of a compatilizer, 0%-0.2% of an antioxidant and 0%-0.2% of a lubricant. The preparation method comprises the following steps: mixing the above raw materials, conducting stirring at a high speed until the raw materials are uniformly mixed, extruding the formed mixtureand the initiator by a double-screw extruder, and carrying out granulating to obtain the multifunctional polypropylene melt-blown material. According to the preparation method of the multifunctionalpolypropylene melt-blown material, electret master batch does not need to be additionally added, the burdening and mixing links of the melt-blown material and the electret master batch are omitted, the problem of uneven dispersion of the electret master batch is avoided, and electret and antibacterial effects are improved. The multifunctional polypropylene melt-blown material disclosed by the invention has efficient and long-term electret and antibacterial functions, and is suitable for a melt-blown process.

Description

technical field [0001] The invention belongs to the technical field of polypropylene melt-blown material, and relates to a multifunctional polypropylene melt-blown material and a preparation method thereof. Background technique [0002] The nonwovens industry is developing rapidly in China, and the market is mainly dominated by spunbonded nonwovens, accounting for 50.09%. Meltblown nonwovens accounted for a relatively small proportion of production, only 0.9%. Melt-blown non-woven fabric is the key material for masks to achieve the filtering function, and is called the "heart" of medical masks. Melt-blown non-woven fabric is composed of many criss-cross fibers stacked in random directions. The fiber diameter can reach 1-5 microns, with many voids, fluffy structure, and good wrinkle resistance. It has good filterability, and after special electret treatment, it can greatly improve the filtration efficiency of melt-blown cloth and meet the requirements of N95 and N99. Howev...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L79/00C08K5/14C08K13/06C08K9/04C08K3/38C08K5/098C08K5/134C08K5/526C08K9/06C08K5/00C08K3/34
CPCC08K5/14C08K13/06C08K9/04C08K3/38C08K5/098C08K5/1345C08K5/526C08K9/06C08K5/0058C08K3/346C08L23/12C08K2201/011C08L2203/12C08L79/00C08K9/08
Inventor 铁文安祁蓉田小艳康少冉张杨王宇曹建芳
Owner 陕西延长泾渭新材料科技产业园有限公司
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