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In-situ polymerization modified graphene and polypropylene melt-blown nonwoven and preparation method thereof

A technology of ethylene-polypropylene and in-situ polymerization, which is applied in the field of in-situ polymerization modified graphene-polypropylene meltblown cloth and its preparation, can solve problems such as lack of functionality, and achieve UV resistance, good functionality, and economy. high-efficiency effect

Pending Publication Date: 2020-06-26
北京盈创力和电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Traditional polypropylene melt-blown cloth is not functional. With the development of society, it can no longer meet people's needs for functional textiles. Graphene polypropylene melt-blown cloth has good antibacterial properties, far-infrared, anti-ultraviolet and other functions. And the original taste of polymerized graphene polypropylene is permanent, and can be used in masks, non-woven clothing, and air purifiers as an antibacterial filter material to increase the added value of products, which satisfies people's health and environmental protection functions. Demand for Sexual Textiles

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0022] The preparation process of the in-situ polymerization modified graphene polypropylene masterbatch includes: adding graphene materials and modifiers into deionized water, stirring, raising the temperature to 50-80°C, ultrasonic dispersion treatment, and preparing modified Graphene slurry. The concentration of the graphene material in the modified graphene slurry is 1-10 mg / ml. Then freeze-dry the obtained modified graphene slurry to obtain modified graphene powder, put it into a container to seal it, vacuumize it, and then fill it with nitrogen for protection. Take the prepared modified graphene powder, add powdered propylene monomer, and stir evenly. Put the mixed propylene / modified graphene material into the polymerization kettle, add the catalyst, heat to 50-60°C, stir for 10-20min, then raise the temperature to 70-90°C, polymerize for 3-5h, and exit The raw materials were pelletized and dried to obtain in-situ polymerized graphene polypropylene masterbatches.

[0...

Embodiment 1

[0033] An in-situ polymerized modified graphene polypropylene melt-blown cloth, the raw materials of the melt-blown cloth include: 0.1% in-situ polymerized graphene polypropylene masterbatch, 99% polypropylene chips, and 0.9% modifier ; The melt-blown cloth is prepared by a melt-blown cloth production process.

[0034] Preferably, the in-situ polymerized graphene polypropylene masterbatch is an in-situ polymerized graphene polypropylene masterbatch obtained by polymerization reaction of powdered graphene material and propylene monomer.

[0035] Graphene materials include graphene oxide prepared by mechanical exfoliation or chemical vapor deposition.

[0036] Modifiers include polyvinyl alcohol or hydroxypropyl cellulose.

[0037] This embodiment also provides the preparation method of the in-situ polymerization modified graphene polypropylene melt-blown cloth, which comprises:

[0038] Step 1, weighing each raw material in proportion.

[0039] Step 2, grinding the graphene ...

Embodiment 2

[0048] An in-situ polymerized modified graphene polypropylene melt-blown cloth, the raw materials of the melt-blown cloth include: in-situ polymerized graphene polypropylene masterbatch 8%, polypropylene chips 91.9%, modifier 0.1% ; The melt-blown cloth is prepared by a melt-blown cloth production process.

[0049] Preferably, the in-situ polymerized graphene polypropylene masterbatch is an in-situ polymerized graphene polypropylene masterbatch obtained by polymerization reaction of powdered graphene material and propylene monomer.

[0050] Graphene materials include graphene prepared by mechanical exfoliation.

[0051] The modifying agent comprises any one or more of polyethylene glycol, sodium lignosulfonate, and polyvinylpyrrolidone.

[0052] This embodiment also provides the preparation method of the in-situ polymerization modified graphene polypropylene melt-blown cloth, which comprises:

[0053] Step 1, weighing each raw material in proportion.

[0054] Step 2, grindi...

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Abstract

The invention discloses an in-situ polymerization modified graphene and polypropylene melt-blown nonwoven and a preparation method thereof. The melt-blown nonwoven comprises the following raw materials: 0.1 to 30 percent of in-situ polymerization graphene and polypropylene master batch, 69 to 99 percent of polypropylene slices and 0.1 to 5 percent of a modifier. The preparation method of the melt-blown nonwoven comprises the following steps of 1, weighing the raw materials; 2, grinding and uniformly mixing the graphene and polypropylene master batch and the polypropylene slices; 3, putting themixed materials into a screw extruder for melt extrusion; 4, drafting melt, and then, performing cooling and shaping; 5, collecting fiber onto a collecting screen, and forming a nonwoven fabric by self heat through bonding; and 6, cutting the edge of the nonwoven fabric formed by a fiber screen by an edge cutting machine, winding the nonwoven fabric onto a winding roller to form a nonwoven fabricrolled according to the specification. The in-situ polymerization modified graphene and polypropylene melt-blown nonwoven prepared by the method provided by the invention has the characteristics of bacterium resistance, far infrared ray resistance and ultraviolet resistance; in addition, the graphene is uniformly dispersed and cannot easily fall off; and the functionality is durable.

Description

technical field [0001] The invention relates to a graphene meltblown cloth and a preparation method thereof, in particular to an in-situ polymerization modified graphene polypropylene meltblown cloth and a preparation method thereof. Background technique [0002] Graphene is a two-dimensional material with carbon atoms arranged in a hexagonal shape. Graphene oxide is modified with carboxyl, epoxy, and hydroxyl groups on the surface of graphene. Since the preparation process of graphene oxide is relatively simple, the cost of raw materials is low, and graphene oxide is less likely to agglomerate than graphene in actual operation, it can be widely used in large-scale industrial production. [0003] Traditional polypropylene melt-blown cloth is not functional. With the development of society, it can no longer meet people's needs for functional textiles. Graphene polypropylene melt-blown cloth has good antibacterial properties, far-infrared, anti-ultraviolet and other functions....

Claims

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Application Information

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IPC IPC(8): D04H1/56D04H1/544D01F6/46D01F1/10D01D5/098
CPCD01D5/0985D01F1/10D01F1/103D01F1/106D01F6/46D04H1/544D04H1/56
Inventor 刘少华任国峰
Owner 北京盈创力和电子科技有限公司
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