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Preparation method of cellulose composite film

A technology of cellulose and composite film, which is applied in the field of preparation of cellulose composite film, can solve the problems of poor strength of cellulose film and achieve the effects of strong mechanical properties, increased optical transparency, and rich sources

Inactive Publication Date: 2017-09-26
朱贝康
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] As one of the abundant natural polymer biomass materials in nature, cellulose has good biocompatibility, renewability and biodegradability, and has attracted widespread attention. High-quality cellulose composite membranes have gradually entered all aspects of people's lives, and are widely used in electronics, cosmetics, packaging, ultrafiltration, drug release, etc. The strength of the cellulose film is poor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A kind of preparation method of cellulose composite film, the steps are as follows:

[0022] Step 1. Pretreatment of durian shells: Cut the collected discarded durian shells evenly into small pieces, then clean the dirt on the surface, vacuum dry at 45°C for 36 hours, and pulverize them in a pulverizer , sieved, and the particle size is 100 ~ 200 mesh shell powder, stand-by;

[0023] Step 2. Preparation of carboxylated nanocellulose: take a certain amount of shell powder in step 1, soak it in ammonium persulfate solution for 24 hours, and perform three stages of heating and ultrasonic stirring. The first stage: at a temperature of 80 ° C, ultrasonic Ultrasonic for 6 hours under the condition of power of 750w, the second stage: ultrasonic for 5h under the condition of temperature of 70°C and ultrasonic power of 750w, the third stage: ultrasonic for 6h of temperature under the condition of 60°C and ultrasonic power of 250w, to obtain Suspension, heating in stages The pur...

Embodiment 2

[0035] A kind of preparation method of cellulose composite film, the steps are as follows:

[0036] Step 1. Pretreatment of durian shells: Cut the collected discarded durian shells evenly into small pieces, then clean the dirt on the surface, vacuum dry at 50°C for 30 hours, and pulverize them in a pulverizer , sieved, and the particle size is 100 ~ 200 mesh shell powder, stand-by;

[0037]Step 2. Preparation of carboxylated nanocellulose: take a certain amount of shell powder in step 1, soak it in ammonium persulfate solution for 24 hours, and perform three stages of heating and ultrasonic stirring. The first stage: at a temperature of 80 ° C, ultrasonic Ultrasound for 2h under the condition of power of 750w, the second stage: ultrasonic for 2h under the condition of temperature of 70°C and ultrasonic power of 750w, the third stage: ultrasonic for 2h under the condition of temperature of 60°C and ultrasonic power of 250w, to obtain Suspension, heating in stages The purpose o...

Embodiment 3

[0050] A kind of preparation method of cellulose composite film, the steps are as follows:

[0051] Step 1. Pretreatment of durian shells: Cut the collected discarded durian shells evenly into small pieces, then clean the dirt on the surface, vacuum dry at 60°C for 36 hours, and pulverize them in a pulverizer , sieved, and the particle size is 100 ~ 200 mesh shell powder, stand-by;

[0052] Step 2. Preparation of carboxylated nanocellulose: take a certain amount of shell powder in step 1, immerse in ammonium persulfate solution for 36 hours, and perform three stages of heating and ultrasonic stirring. The first stage: at a temperature of 80 ° C, ultrasonic Ultrasound for 4h under the condition of power of 750w, the second stage: ultrasonic for 4h under the condition of temperature of 70°C and ultrasonic power of 750w, the third stage: ultrasonic for 4h under the condition of temperature of 60°C and ultrasonic power of 250w, to obtain Suspension, heated in stages The purpose o...

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Abstract

The purpose of the present invention is to provide a kind of preparation method of cellulose composite membrane, the present invention is raw material with durian shell, prepares carboxylated nano-cellulose through the oxidative degradation of ammonium persulfate, then the prepared carboxylated nano-cellulose and fiber The cellulose solution is compounded, and the cellulose composite film is prepared under certain process conditions. The production process of the invention is green and environment-friendly, and the prepared cellulose film has higher strength and higher transparency.

Description

technical field [0001] The invention belongs to the field of synthesis of natural polymer materials, and in particular relates to a preparation method of a cellulose composite film. Background technique [0002] As one of the abundant natural polymer biomass materials in nature, cellulose has good biocompatibility, renewability and biodegradability, and has attracted widespread attention. High-quality cellulose composite membranes have gradually entered all aspects of people's lives, and are widely used in electronics, cosmetics, packaging, ultrafiltration, drug release, etc. The strength of the cellulose film is poor. Contents of the invention [0003] The object of the present invention is to provide a kind of preparation method of cellulose composite film, the present invention is raw material with durian shell, prepares carboxylated nano-cellulose through ammonium persulfate oxidative degradation, then the prepared carboxylated nano-cellulose and fiber The cellulose ...

Claims

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Application Information

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IPC IPC(8): C08J5/18C08B11/12C08L1/02C08L97/02C08L1/28
CPCC08J5/18C08B11/12C08J2301/02C08J2397/02C08J2401/28C08L1/02C08L97/02C08L2201/06C08L2201/10C08L2203/16
Inventor 朱贝康
Owner 朱贝康
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