Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

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 and salt resistance; Chinese patent 200310100384 discloses a resin preparation and method for a high-porosity, salt-tolerant, and super-absorbent tree, although it solves the problems of product porosity, salt resistance, and dryness after water absorption , but its cost is high, its water absorption performance is poor, and its function is single

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

Embodiment 1

[0011] Embodiment 1. Add 100 parts of acrylic acid to the reactor in parts by mass, adjust the pH value of the system to 5-7 with 40% aqueous sodium hydroxide solution, then add 5 parts of cornstarch, 5 parts of attapulgite, 0.01 1% N-N methylene bisacrylamide solution, 0.01 part of 1% potassium persulfate aqueous solution, stir evenly; heat up to 40°C, polymerize for about 2 hours, stop stirring when the system is translucent gel-like; Continue to raise the temperature to 60°C and polymerize for about 1 hour, the system becomes a gel, take out the gel, granulate, and dry; crush it into a semi-finished product, and then add N-N methylenebisacrylamide with a mass of 0.1% of the semi-finished product and a concentration of 1%. Solution, and EM solution with a mass of 0.05% of the semi-finished product and a concentration of 5%, are stirred evenly, placed in an airflow drying oven, and heated to 100°C for secondary surface crosslinking treatment to obtain a highly active bio-super...

Embodiment 2

[0013] Embodiment 2: Add 100 parts of acrylic acid to the reactor in parts by mass, adjust the pH value of the system to 5-7 with 40% aqueous sodium hydroxide solution, then add 10 parts of cornstarch and 20 parts of white sericite to the system successively, 0.05 parts of 5% glycerol solution, 0.05 parts of 1% hydrogen persulfate aqueous solution, 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 Polymerize at 70°C for about 2 hours, the system turns into a gel, take out the gel, granulate, and dry; crush it into a semi-finished product, and then add N-N methylenebisacrylamide solution with a mass of 0.5% of the semi-finished product and a concentration of 5% and The EM solution with a mass of 0.01% of the semi-finished product and a concentration of 5% is stirred evenly, placed in an airflow drying oven, and heated to 90°C for secondary surface cross-linking treatment to obtain a highly active b...

Embodiment 3

[0015] Example 3: Add 100 parts of acrylic acid to the reactor in parts by mass, adjust the pH value of the system to 5-7 with 40% aqueous sodium hydroxide solution, then add 20 parts of cornstarch, 40 parts of kaolin, and 1 part of Polyvinyl alcohol solution with a concentration of 1%, 1 part of ammonium cerium 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 gelatinous; continue to heat up to 55°C Then polymerize for about 2 hours at ℃, the system becomes gel, take out the gel, granulate, dry; crush into semi-finished products, and then add N-N methylenebisacrylamide solution with a concentration of 0.5% of semi-finished products and a concentration of 10% and semi-finished products 0.5% EM solution with a concentration of 10%, stirred evenly, placed in an airflow drying oven, heated to 70°C for secondary surface cross-linking treatment, to obtain a highly active bio-superabso...

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 Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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