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

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...

Examples

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...

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...

Examples

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...