A kind of environment-friendly biocompatible porous film and preparation method thereof

A biocompatible, porous membrane technology, applied in the field of membrane materials, can solve the problems of poor recyclability, reduced performance, material waste, etc., and achieve the effects of high recyclability, stable performance and high efficiency

Active Publication Date: 2021-05-07
HARBIN INST OF TECH -WEIHAI INNOVATION PARK WEIHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the development of sewage treatment technology, more and more functional membrane materials are used for sewage treatment. At present, the efficiency of membrane material treatment is still not high, and the performance of membrane materials is significantly reduced during use, and the recycling rate is poor. cause a lot of waste of material

Method used

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  • A kind of environment-friendly biocompatible porous film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Prepare an environmentally friendly biocompatible porous membrane, comprising the following steps:

[0027] (1) Weigh 80 parts of polylactic acid, 10 parts of acrylic acid, 2 parts of dibenzoyl peroxide, 50 parts of titanium dioxide powder, 10 parts of tourmaline powder, 5 parts of tricalcium phosphate, porogen chlorination Potassium 20 parts. The molecular weight of polylactic acid is 50,000; the particle size of tricalcium phosphate is ultrafine tricalcium phosphate of 2 to 3 μm; the particle size of tourmaline powder is 50nm; the particle size of titanium dioxide powder is 5nm.

[0028] (2) Add the polylactic acid weighed in step (1) into 240 parts of organic solvent tetrahydrofuran, and at the same time pass through nitrogen gas and stir, then heat to 60°C and reflux for 2 hours to dissolve, and obtain solution I.

[0029] (3) Add the acrylic acid and dibenzoyl peroxide weighed in the step (1) to the solution I prepared in the step (2) at the same time, and carry o...

Embodiment 2

[0033] Prepare an environmentally friendly biocompatible porous membrane, comprising the following steps:

[0034] (1) Weigh 100 parts of polylactic acid, 50 parts of acrylic acid, 10 parts of dibenzoyl peroxide, 100 parts of titanium dioxide powder, 30 parts of tourmaline powder, 20 parts of tricalcium phosphate, and 50 parts of porogen sucrose according to the required parts by weight. share. The molecular weight of polylactic acid is 200,000; the particle size of tricalcium phosphate is ultrafine tricalcium phosphate of 2 to 3 μm; the particle size of tourmaline powder is 2000nm; the particle size of titanium dioxide powder is 100nm.

[0035] (2) Add the polylactic acid weighed in step (1) into 200 parts of organic solvent dichloromethane, and at the same time pass in nitrogen gas and stir, and then heat to 80° C. and reflux for 6 hours to dissolve to obtain solution I.

[0036] (3) Add the acrylic acid and dibenzoyl peroxide weighed in the step (1) to the solution I prepa...

Embodiment 3

[0040] Prepare an environmentally friendly biocompatible porous membrane, comprising the following steps:

[0041] (1) Weigh 85 parts of polylactic acid, 20 parts of acrylic acid, 4 parts of dibenzoyl peroxide, 60 parts of titanium dioxide powder, 12 parts of tourmaline powder, 12 parts of tricalcium phosphate, and porogen alginic acid according to the required parts by weight. Sodium 25 parts. The molecular weight of polylactic acid is 80,000; the particle size of tricalcium phosphate is ultrafine tricalcium phosphate of 2-3 μm; the particle size of tourmaline powder is 100nm; the particle size of titanium dioxide powder is 30nm.

[0042](2) Add the polylactic acid weighed in step (1) into 170 parts of organic solvent tetrahydrofuran, and at the same time pass through nitrogen and stir, and then heat to 65 ° C and reflux for 3 hours to dissolve to obtain solution I.

[0043] (3) Add the acrylic acid and dibenzoyl peroxide weighed in the step (1) to the solution I prepared in...

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Abstract

The invention relates to an environment-friendly biocompatible porous membrane and a preparation method thereof, which solves the technical problems of high sewage treatment cost, low purification and treatment sewage efficiency, rapid performance degradation and non-recyclable utilization of biofilm materials in the prior art. The invention provides an environmentally friendly biocompatible porous membrane, which consists of the following raw material components in parts by weight: 80-100 parts of polylactic acid, 10-50 parts of acrylic acid, 2-10 parts of dibenzoyl peroxide, 50-100 parts of titanium dioxide powder, 10-30 parts of tourmaline powder, 5-20 parts of tricalcium phosphate, 20-50 parts of porogen; meanwhile, a preparation method thereof is provided. The invention is widely used in the field of membrane materials.

Description

technical field [0001] The invention relates to the field of membrane materials, in particular to an environmentally friendly biocompatible porous membrane and a preparation method thereof. Background technique [0002] The globalization of environmental pollution has become prominent, and various materials for environmental governance have been widely concerned. At present, the discharge of various chemical enterprises and domestic sewage has caused serious pollution to the environment; especially the sewage purification treatment devices discharged by various chemical enterprises are expensive and the maintenance costs are high. Membrane materials play an extremely important role in the field of sewage treatment due to their excellent performance. Microfiltration, ultrafiltration and reverse osmosis technologies have been widely used in drinking water purification, seawater, brackish water desalination, industrial wastewater, domestic sewage and other fields. application....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D67/00B01D69/02B01D71/06
CPCB01D67/0079B01D69/02B01D71/06B01D2325/36
Inventor 张鹏刘康王传杰孙金平陈刚
Owner HARBIN INST OF TECH -WEIHAI INNOVATION PARK WEIHAI
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