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Preparation method of film adsorbing material

A technology for adsorbing materials and films, applied in chemical instruments and methods, other chemical processes, etc., can solve the problems of short service life, poor selectivity, and high price, and achieve the effects of reducing environmental damage, fast adsorption, and simple process.

Inactive Publication Date: 2014-06-25
CHANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The preparation of these coatings is to fix the polymer on the surface of the fused silica fiber with a diameter of several hundred microns by photocuring or high temperature heating. Short (generally 40-100 times), expensive, and its application is limited

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0015] (1) Pulverization: put the discarded plastic film into a pulverizer and pulverize it into plastic pieces;

[0016] (2) Cleaning: Add water to the crushed plastic sheet, the water volume submerges the plastic sheet, first add 10ppm chloroform, then add 30ppm gasoline, and ultrasonically wash for 30 minutes;

[0017] (3) Peeling: Pour the cleaned plastic sheet into the barrel, which contains 0.5M hydrochloric acid and 1.5M nitric acid solution, so that the metal on the plastic sheet is dissolved into the acid to realize the peeling of the plastic sheet and the metal;

[0018] (4) Filtration: decontamination and metal removal plastic sheets are separated from the solution;

[0019] (5) Drying: first dry at a constant temperature at 105°C, and then crack at an elevated temperature of 800°C under nitrogen protection;

[0020] (6) Dissolving: dissolving the cracked plastic sheet with dichloroethane solvent;

[0021] (7) Granulation: Wash with clean water, pick up and dry, t...

example 2

[0023] (1) Pulverization: put the discarded plastic film into a pulverizer and pulverize it into plastic pieces;

[0024] (2) Cleaning: Add water to the crushed plastic sheet, the water volume submerges the plastic sheet, first add 15ppm chloroform, then add 40ppm gasoline, and ultrasonically wash for 35 minutes;

[0025] (3) Peeling: Pour the cleaned plastic sheet into the barrel, which contains 0.5M hydrochloric acid and 1.5M nitric acid solution, so that the metal on the plastic sheet is dissolved into the acid to realize the peeling of the plastic sheet and the metal;

[0026] (4) Filtration: decontamination and metal removal plastic sheets are separated from the solution;

[0027] (5) Drying: first dry at a constant temperature at 105°C, and then crack at an elevated temperature of 800°C under nitrogen protection;

[0028] (6) Dissolving: dissolving the cracked plastic sheet with dichloroethane solvent;

[0029] (7) Granulation: Wash with clean water, pick up and dry, t...

example 3

[0031] (1) Pulverization: put the discarded plastic film into a pulverizer and pulverize it into plastic pieces;

[0032] (2) Cleaning: Add water to the crushed plastic sheet, the water volume submerges the plastic sheet, first add 20ppm chloroform, then add 50ppm gasoline, and ultrasonically wash for 45 minutes;

[0033] (3) Peeling: Pour the cleaned plastic sheet into the barrel, which contains 0.5M hydrochloric acid and 1.5M nitric acid solution, so that the metal on the plastic sheet is dissolved into the acid to realize the peeling of the plastic sheet and the metal;

[0034] (4) Filtration: decontamination and metal removal plastic sheets are separated from the solution;

[0035] (5) Drying: first dry at a constant temperature at 105°C, and then crack at an elevated temperature of 800°C under nitrogen protection;

[0036] (6) Dissolving: dissolving the cracked plastic sheet with dichloroethane solvent;

[0037] (7) Granulation: Wash with clean water, pick up and dry, t...

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PUM

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Abstract

The invention discloses a preparation method of a film adsorbing material. The preparation method mainly comprises the steps of crushing with a crusher, adding water, trichloromethane and gasoline to a crushed plastic sheet for cleaning, adding acid, filtering, dissolving, cleaning with clear water, drying, and pelleting to allow the plastic sheet to become a granular plastic raw material. The film adsorbing material prepared through the preparation method is high in selectively, high in adsorption rate, and simple in technology, has regeneration capacity, and reduces harm to an environment; and moreover, the preparation method of the film adsorbing material, provided by the utility model, meets the environmental requirements best.

Description

technical field [0001] The invention relates to a method for preparing a film adsorption material, and mainly provides a reuse method. Background technique [0002] Adsorbent materials are widely used in solid-phase extraction, solid-phase microextraction, chromatographic separation, and electrochemical analysis. Solid phase extraction is a technique for extracting and separating analytes from solutions or gases. Because of its advantages of simple operation, flexible use, high recovery rate, less solvent consumption, and easy automation, it has been adopted by many laboratories and analysts. However, this method is cumbersome to operate, has a high blank value, and is easy to clog the adsorption column, resulting in unsatisfactory reproducibility. Solid-phase microextraction is a sample preparation and pretreatment technique that is similar to solid-phase extraction in principle but completely different in operation. This technology was first proposed by the Pawliszyn re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/26B01J20/30
Inventor 邵敏
Owner CHANGZHOU UNIV
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