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High-oil-absorption polypropylene material and preparation method thereof

A polypropylene material and high oil absorption technology, applied in the field of high oil absorption polypropylene material and its preparation, can solve the problems of unfavorable material recycling, increase material water absorption, increase material density, etc., achieve excellent floatability, facilitate recycling and disposal, The effect of high oil absorption

Active Publication Date: 2020-08-14
张乃斌
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, oil slicks on the sea surface are generally absorbed by oil-absorbing materials. Chinese patent CN201510130098.7 discloses a foamed polypropylene oil-absorbing material. There are still some problems in this type of material. Among them, a filler-type nucleating agent is used, which leads to the final The ash content of the product is large, which is not conducive to the recycling of materials. The filler will also increase the density of the material, making it less floatable on the water surface. In addition, the filler itself has no difference in physical adsorption, which will increase the water absorption of the material and reduce the oil absorption. , and the material absorbs water causing it to sink in water

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  • High-oil-absorption polypropylene material and preparation method thereof
  • High-oil-absorption polypropylene material and preparation method thereof

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preparation example Construction

[0051] The preparation method of supercritical carbon dioxide in the present application can be any one known to those skilled in the art, such as pressurized extraction, or can be prepared using commercially available production equipment.

[0052] The inventor found in the research and development process that using supercritical carbon dioxide as a blowing agent greatly improves the foaming efficiency, and the cells are uniform and high in integrity. Rapid diffusion in the medium to form a polymer / gas homogeneous saturated system, and then produce a thermodynamic supersaturated state during mixing with other raw materials, causing phase separation of the system and triggering the formation and growth of bubble nuclei. In addition, the inventors have also found that supercritical carbon dioxide permeates into the polypropylene mobile phase, swelling the structure, increasing the distance between molecular chains, reducing the interfacial tension between the phases in the poly...

Embodiment 1

[0059] Embodiment 1 provides a kind of high oil-absorbing polypropylene material, by weight, its preparation raw material comprises:

[0060] 92 parts of polypropylene (PP9513 produced by ExxonMobil, whose melt index at 230°C and 2.16kg is 7.3g / 10min);

[0061] 6 parts of nucleating aids; the nucleating aids are polystyrene (GP5250 produced by Ningbo Taihua, the melt index at 200°C and 5kg load is 7g / 10min);

[0062] 4 parts of a phenyl-containing compound; the phenyl-containing compound is 1,3:2,4-bis(p-methylbenzylidene)sorbitol, CAS No.: 54686-97-4, purchased from Japan Mitsui Chemicals ;

[0063] 10 parts of whipping agent; Described whipping agent is supercritical carbon dioxide;

[0064] 2 parts of lipophilic additive; the lipophilic additive is hexadecyl pyridinium bromide.

[0065] This example also provides a preparation method of the above-mentioned high oil-absorbing polypropylene material, including the following steps: according to the proportion, polypropylene...

Embodiment 2

[0067] Embodiment 2 provides a kind of high oil absorption polypropylene material, by weight, its preparation raw material comprises:

[0068] 85 parts of polypropylene (PP9513 produced by ExxonMobil, whose melt index at 230°C and 2.16kg is 7.3g / 10min);

[0069] 2 parts of nucleating aid; said nucleating aid is polystyrene (GP5250 produced by Ningbo Taihua, the melt index at 200°C and 5kg load is 7g / 10min);

[0070] 1 part of a phenyl-containing compound; the phenyl-containing compound is 1,3:2,4-bis(p-methylbenzylidene)sorbitol, CAS No.: 54686-97-4, purchased from Japan Mitsui Chemicals ;

[0071] 5 parts of whipping agent; Described whipping agent is supercritical carbon dioxide;

[0072] 1 part of lipophilic additive; the lipophilic additive is hexadecyl pyridinium bromide.

[0073] This example also provides a preparation method of the above-mentioned high oil-absorbing polypropylene material, including the following steps: according to the proportion, polypropylene, nu...

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Abstract

The invention discloses a high-oil-absorption polypropylene material, which is prepared from the following raw materials in parts by weight: 85 to 100 parts of polypropylene; 2-10 parts of a nucleating aid; 1-10 parts of a phenyl-containing compound; 0.5-25 parts of a foaming agent; 1-5 parts of an oleophylic additive. According to the high-oil-absorption polypropylene material, the specific nucleating aid is adopted so that the prepared product is greatly reduced in ash content, and convenient to recover and dispose; the material is extremely low in density, capable of keeping excellent floatability on the water surface, high in oil absorption rate, good in mechanical property, good in stability, capable of being repeatedly used, capable of still keeping high oil absorption rate after absorbing oil for multiple times and suitable for being widely popularized on the market.

Description

technical field [0001] The invention relates to the field of environment-friendly materials for water treatment, in particular to a high oil-absorbing polypropylene material and a preparation method thereof. Background technique [0002] Petroleum is an important mineral resource, which can be used not only as energy, but also as a raw material for the production of various chemicals. Maritime transportation is the main way of oil transportation between countries. In recent years, oil spills on the ocean have occurred frequently, causing serious damage to the environment and ecology. [0003] At present, oil slicks on the sea surface are generally absorbed by oil-absorbing materials. Chinese patent CN201510130098.7 discloses a foamed polypropylene oil-absorbing material. There are still some problems in this type of material. Among them, a filler-type nucleating agent is used, which leads to the final The ash content of the product is large, which is not conducive to the re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L23/14C08L53/00C08L25/06C08K5/3432C08K5/1575C08J9/12
CPCC08J9/122C08J9/0061C08J9/0028C08J9/0023C08J2323/12C08J2323/14C08J2353/00C08J2425/06C08K5/3432C08K5/1575C08J2203/06C08J2203/08Y02P20/54
Inventor 张乃斌
Owner 张乃斌
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