High activity biological super-strong water absorption resin and preparation method thereof

A technology of water-absorbing resin and high activity, applied in the field of polymers, can solve the problems of porosity, poor salt resistance, high production cost, poor water absorption performance, etc., and achieve the effect of low price, low cost and strong liquid absorption capacity

Inactive Publication Date: 2008-07-09
师进
View PDF3 Cites 18 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chinese patent 01145399 discloses a superabsorbent resin and its preparation method, which has single function, high production cost, and poor dryness after absorbing water and liquid; Chinese patent 200410044870 discloses a preparation method of super absorbent resin, and its product also has single function , high production cost, poor porosity

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0011] Example 1: Add 100 parts of acrylic acid to the reactor according to parts by mass, adjust the pH of the system to 5-7 with 40% sodium hydroxide aqueous solution, and then add 5 parts of corn starch, 5 parts of attapulgite to the system, 0.01 1% NN methylene bisacrylamide solution with a concentration of 1%, 0.01 part of 1% potassium persulfate aqueous solution, stir uniformly; heat up to 40°C, polymerize for about 2 hours, and stop stirring when the system is translucent; Continue to heat up to 60°C and polymerize for about 1 hour, the system becomes gel, the gel is taken out and granulated, dried; crushed into semi-finished products, and then sequentially added with NN methylene bisacrylamide with a mass of 0.1% of the semi-finished product and a concentration of 1% The solution, and the EM solution with 0.05% of the mass of the semi-finished product and the concentration of 5%, are stirred evenly, placed in an airflow drying box, and heated to 100°C for secondary surface...

Example Embodiment

[0013] Example 2: Add 100 parts of acrylic acid to the reactor by mass parts, adjust the pH of the system to 5-7 with 40% sodium hydroxide aqueous solution, and then sequentially add 10 parts of corn starch and 20 parts of white sericite to the system. 0.05 parts of glycerol solution with a concentration of 5%, 0.05 parts of hydrogen persulfate aqueous solution with a concentration of 1%, stir evenly; heat up to 35°C, polymerize for about 1.5 hours, stop stirring when the system is translucent gel; continue to heat up After polymerization at 70°C for about 2 hours, the system becomes a gel. The gel is taken out and granulated, dried; crushed into semi-finished products, and then sequentially added the NN methylene bisacrylamide solution with 0.5% of the mass of the semi-finished products and 5% concentration. The semi-finished EM liquid with 0.01% mass and 5% concentration is stirred evenly, placed in an airflow drying box, and heated to 90°C for secondary surface cross-linking tr...

Example Embodiment

[0015] Example 3: Add 100 parts of acrylic acid to the reactor by mass parts, adjust the pH of the system to 5-7 with 40% sodium hydroxide aqueous solution, and then add 20 parts of corn starch, 40 parts of kaolin, 1 part of kaolin to the system in sequence A polyvinyl alcohol solution with a concentration of 1%, a 1% cerium ammonium nitrate solution with a concentration of 1%, stir evenly; heat up to 45°C, polymerize for about 2 hours, stop stirring when the system is translucent gel; continue to heat up to 55 After polymerization at ℃ for about 2 hours, the system becomes gel, the gel is taken out and granulated, dried; pulverized into semi-finished products, and then sequentially added the NN methylene bisacrylamide solution with 0.5% of the semi-finished product mass and the concentration of 10% and the semi-finished product mass 0.5%, 10% concentration of EM solution, stir evenly, put it in the airflow drying box, heat up to 70 ℃ for secondary surface cross-linking treatment,...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Water absorptionaaaaaaaaaa
Water absorptionaaaaaaaaaa
Water absorptionaaaaaaaaaa
Login to view more

Abstract

The invention provides a high-activity biological super strong water absorbing resin, the process for preparation comprises adding acrylic acid in a catalyst case according to quality portion, adjusting the pH value to 5-7, and adding a certain amount of maize starch, inorganic mineral substance, cross linker solution and initiating agent in turn, evenly stirring, warming up to 35 to 45 DEG C, polymerizing for 1.5-2 hours, stopping stirring when the system takes semitransparent gel shape, continuously warming up to 55-70 DEG C to polymerize 1-2 hours again till the system is turned to be gelatin, taking granulations out, drying, grinding to be half-finished product, and adding cross linker solution whose half-finished product quality is 0.01-1% and 0.01-1% high-activity biological agent, evenly stirring, placing in a drier, warming up to 60-100 DEG C to have a secondary treatment of surface cross bonding, and getting high-activity biological super strong water absorbing resin. The strong water absorbing resin product has the advantages of fast water absorbing speed, strong water absorbing capability, excellent anti adhesive properties after absorbing water, and which has the functions of resisting bacterium, absorbing osmyl, health care and the like, and can be applied in the production of women sanitary napkins, paper diaper, the aged health shorts and the like.

Description

technical field [0001] The invention belongs to the technical field of macromolecules, and relates to a polymer water-absorbing resin, in particular to a high-activity biological super water-absorbing resin and a preparation method thereof. The high-activity bio-superabsorbent resin of the present invention is mainly used in the production of household paper such as sanitary napkins, paper diapers, and health care shorts for the elderly. Background technique [0002] Polymer water-absorbing resin is a new type of polymer functional material developed in recent years. Due to its strong water absorption, it has been widely used in industry, agriculture, medical treatment and daily life. Super-absorbent resin, due to its super water-absorbing capacity (it can absorb water hundreds or even thousands of times its own weight), has been widely used in household paper, especially in the production of sanitary napkins and diapers for women. . Chinese patent 01145399 discloses a sup...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C08F251/00C08F2/44C08K3/00C08L51/02
Inventor 师进
Owner 师进
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap