A kind of preparation method and application of polymethyl methacrylate porous microsphere film

A technology of polymethyl methacrylate and porous microspheres, applied in chemical instruments and methods, membrane technology, semi-permeable membrane separation, etc., to achieve excellent mechanical properties, low cost, and good controllability

Active Publication Date: 2016-06-29
吴秀丽
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to solve the problem of adsorption treatment of environmental hormones, and provide a preparation and application of polymethyl methacrylate porous microsphere membrane

Method used

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  • A kind of preparation method and application of polymethyl methacrylate porous microsphere film
  • A kind of preparation method and application of polymethyl methacrylate porous microsphere film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] ⑴Preparation of polymethyl methacrylate solution: Add 5g of fully dried polymethyl methacrylate into 85g of dimethylformamide solvent, stir and dissolve at 25°C for 1h, after completely dissolving, slowly Add 10g of cyclohexanone, stir and heat at 80°C for 2h, vacuum defoam the obtained homogeneous solution, and let stand at 80°C for use;

[0031] ⑵Preparation of the initial state microsphere film: spread the obtained polymethyl methacrylate solution evenly on the stainless steel plate into a thin layer with a thickness of 8mm in an environment of 80°C, and place it in a place with a humidity of 60%. , standing in an environment of 50°C for 0.5h, the primary polymethyl methacrylate microsphere film can be obtained, ready for use;

[0032] (3) Post-treatment: Soak the prepared polymethyl methacrylate microsphere membrane in methanol, remove the remaining solvent and diluent, and dry it rapidly in an environment of 100°C, the upper layer is porous microspheres and the low...

Embodiment 2

[0034] ⑴Preparation of polymethyl methacrylate solution: Add 25g of fully dried polymethyl methacrylate into 73g of methyl ethyl ketone solvent, stir and dissolve at 70°C for 2h, after completely dissolving, slowly add 2g of phosphoric acid Stir and heat triethyl ester at 100°C for 4 hours, vacuum defoam the obtained homogeneous solution, and let stand at 100°C for use;

[0035] ⑵Preparation of the initial state microsphere film: spread the obtained polymethyl methacrylate solution evenly on the stainless steel plate into a thin layer with a thickness of 10mm in an environment of 100°C, and place it in a place with a humidity of 60%. , standing in an environment of 100°C for 1.5h, the primary polymethyl methacrylate microsphere film can be obtained, ready for use;

[0036] (3) Post-treatment: Soak the prepared polymethyl methacrylate microsphere membrane in methanol, remove the remaining solvent and diluent, and dry it rapidly at 60°C to obtain the upper layer as the lower lay...

Embodiment 3

[0038] ⑴Preparation of polymethyl methacrylate solution: Add 28g of fully dried polymethyl methacrylate into 65g of polyvinylpyrrolidone solvent, stir and dissolve at 90°C for 3h, after completely dissolving, slowly add 7g Polyethylene glycol ester, stirring and heating at 130°C for 6 hours, vacuum defoaming the obtained homogeneous solution, and standing at 130°C for use;

[0039] ⑵Preparation of initial state microsphere film: at 130°C, evenly spread a thin layer with a thickness of 8mm on a stainless steel plate with a scraping rod, and let it stand for 2 hours in an environment with a humidity of 80% and 60°C to obtain the initial state. state polymethyl methacrylate microsphere membrane.

[0040] (3) Post-treatment: Soak the prepared polymethyl methacrylate microsphere membrane in ethanol, remove the remaining solvent and diluent, and dry it rapidly in an environment of 60°C to obtain the upper layer as the lower layer of porous microspheres It has a network structure, a...

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Abstract

The invention relates to a preparation method and application of a polymethyl methacrylate porous microsphere membrane. According to the method, the polymethyl methacrylate porous microsphere membrane is prepared on the basis of a thermally induced phase separation theory. The method comprises the steps of sequentially mixing 5-45% by weight of polymethyl methacrylate, 50-85% by weight of solvents and 2-10% by weight of diluting agents, dissolving at certain temperature, and then defoaming to obtain a polymethyl methacrylate homogeneous-phase solution; preparing the porous microsphere membrane at temperature and humidity within a certain range, wherein the porous microsphere membrane can be directly used for an adsorption column or prepared into an ultrafiltration membrane assembly to selectively remove environmental hormones, and the removal ratio on the environmental hormones is 0.5-50 mg / g.

Description

technical field [0001] The invention belongs to the technical field of photoelectric materials, and in particular relates to a preparation method and application of a polymethyl methacrylate porous microsphere film. Background technique [0002] Polymethyl methacrylate (PMMA) is a new type of special engineering plastic, which is famous for its good optical transparency. It not only has a high light transmittance (92%), but also has the characteristics of high mechanical strength, light weight, UV resistance and excellent electrical properties of outdoor aging. Polymethyl methacrylate has a wide range of uses, mainly in the fields of aviation instruments, automotive machinery, and medical and health care. The development of polymethyl methacrylate is very swift and violent, but with polymethyl methacrylate alone as the scavenging material of environmental hormones, there are no reports and products at home and abroad. Environmental hormones, also known as "environmental ho...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J9/28C08L33/12B01D69/06B01D71/40B01D67/00B01J20/26B01J20/30B01J20/28
Inventor 吴秀丽戈澄黄皆斌
Owner 吴秀丽
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