A kind of preparation method of polysaccharide dispersion liquid
A dispersion liquid and polysaccharide technology, applied in the field of polysaccharides, can solve the problems of poor dissolution effect, poor stirring effect, poor dispersion effect, etc., and achieve the effects of preventing degradation and solvent volatilization, saving equipment cost, and energy-saving equipment cost
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0022] Step 1. First pass 10.5g of microcrystalline cellulose through four times of methanol and one DMAc solvent exchange, each time for 30 minutes, filter and store in a clean, dry beaker at 60°C for 2 hours;
[0023] Step 2. preparation 200ml concentration is the DMAc / LiCl solution of 4wt%, LiCl can be dissolved in DMAc very soon, the microcrystalline cellulose activated in step 1 is added in this solution system, and cellulose obtains uniform dispersion, forms cellulose non- homogeneous dispersion system;
[0024] Step 3. Add the remaining LiCl to make the total concentration 8wt%, keep stirring, and obtain a uniform and transparent cellulose homogeneous dispersion after 30 minutes, wherein the mass volume ratio of cellulose to DMAc / LiCl solution is 1: 20, and the unit is g / mL.
[0025] From the addition of the remaining LiCl to the dissolution of the cellulose, the dissolution time is only 20 minutes.
Embodiment 2
[0027] Step 1. First pass 10.5g of pulverized filter paper through four times of methanol and one DMAc solvent exchange, each time for 30 minutes, after filtering, put it in a clean, dry beaker and dry it at 60°C for 2 hours;
[0028] Step 2. Preparation of 200ml LiCl concentration is 5wt% DMAc / LiCl solution, LiCl can be dissolved in DMAc very quickly, the microcrystalline cellulose activated in step 1 is added in the solution system, and the cellulose is uniformly dispersed;
[0029] Step 3. Add the remaining LiCl to make the total concentration 8wt%, and keep stirring to obtain a uniform and transparent cellulose solution without any lump formation. The mass volume ratio of cellulose to DMAc / LiCl solution is 1:20, and the unit is g / mL.
[0030] From the addition of the remaining LiCl to the dissolution of the cellulose, the dissolution time is only 30 minutes.
Embodiment 3
[0032] Step 1. Take 5.25g of crushed cellulose extracted from miscanthus in a clean container, exchange solvents with methanol and once with DMAc for 30 minutes each time, filter and store in a clean, dry and anhydrous beaker and bake at 60°C dry 2h;
[0033] Step 2. Preparation of 100ml LiCl concentration is a DMAc / LiCl solution of 4wt%, LiCl can be dissolved in DMAc very quickly, and the activated microcrystalline cellulose in step 1 is added to the solution system, and the cellulose is uniformly dispersed;
[0034] Step 3. Add the remaining LiCl to make the total concentration 8wt%, and keep stirring to obtain a light yellow uniform and transparent cellulose solution without any lump formation. The mass volume ratio of cellulose to DMAc / LiCl solution is 1:20, and the unit is g / mL.
[0035] From the addition of the remaining LiCl to the dissolution of the cellulose, the dissolution time is only 20 minutes.
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com