Hemicellulose/chitosan based compound membrane with high flexibility and mechanical strength and preparation method thereof
A technology of hemicellulose and mechanical strength, applied in the field of hemicellulose/chitosan-based composite membrane and its preparation, can solve the problems of membrane permeability and tensile strength, and achieve high mechanical strength, good application prospect, The effect of high flexibility
Examples
Embodiment 1
[0019] Step 1: Prepare chitosan solution: first weigh 1g of acetic acid, add 99ml of deionized water to obtain a 1% acetic acid solution, then accurately weigh 1g of chitosan dissolved in 49g of 1% acetic acid solution , heated and stirred at 40°C until the chitosan was completely dissolved to obtain a clear and transparent chitosan solution with a mass fraction of 2%.
[0020] Step 2: Prepare hemicellulose solution: first weigh 2g of acetic acid, add 98ml of deionized water to obtain a 2% acetic acid solution, then accurately weigh 1g of hemicellulose dissolved in 49g of 2% acetic acid solution , heated and stirred at 60°C until the hemicellulose was almost completely dissolved, and a small amount of undissolved part was removed by centrifugation to obtain a clear and transparent hemicellulose solution with a mass fraction of about 2%.
[0021] Step 3: prepare hemicellulose / chitosan composite membrane film-forming solution: the chitosan solution that step 1 is made and the xy...
Embodiment 2
[0025] Step 1: Prepare chitosan solution: first weigh 1g of acetic acid, add 99ml of deionized water to obtain a 1% acetic acid solution, then accurately weigh 1g of chitosan dissolved in 49g of 1% acetic acid solution , heated and stirred at 40°C until the chitosan was completely dissolved to obtain a clear and transparent chitosan solution with a mass fraction of 2%.
[0026] Step 2: Prepare hemicellulose solution: first weigh 2g of acetic acid, add 98ml of deionized water to obtain a 2% acetic acid solution, then accurately weigh 1g of hemicellulose dissolved in 49g of 2% acetic acid solution , heated and stirred at 60°C until the hemicellulose was almost completely dissolved, and a small amount of undissolved part was removed by centrifugation to obtain a clear and transparent hemicellulose solution with a mass fraction of about 2%.
[0027] Step 3: prepare hemicellulose / chitosan composite membrane film-forming solution: the chitosan solution that step 1 is made and the xy...
Embodiment 3
[0031] Step 1: Prepare chitosan solution: first weigh 1g of acetic acid, add 99ml of deionized water to obtain a 1% acetic acid solution, then accurately weigh 1g of chitosan dissolved in 49g of 1% acetic acid solution , heated and stirred at 40°C until the chitosan was completely dissolved to obtain a clear and transparent chitosan solution with a mass fraction of 2%.
[0032] Step 2: Prepare hemicellulose solution: first weigh 2g of acetic acid, add 98ml of deionized water to obtain a 2% acetic acid solution, then accurately weigh 1g of hemicellulose dissolved in 49g of 2% acetic acid solution , heated and stirred at 60°C until the hemicellulose was almost completely dissolved, and a small amount of undissolved part was removed by centrifugation to obtain a clear and transparent hemicellulose solution with a mass fraction of about 2%.
[0033] Step 3: prepare hemicellulose / chitosan composite membrane film-forming solution: the chitosan solution that step 1 is made and the xy...
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Abstract
Description
Claims
Application Information
- IPC
- C08J5/18; C08L5/08; C08L5/14; C08L1/02; C08K5/053
- Inventors
- 孙润仓; 袁同琦