Multifunctional super water-absorbing water-retaining agent and its preparation method

Application Number: 00108404
Application Date: 2000.04.29
Publication Number: 1321723
Publication Date: 2001.11.14
Priority Information:
International: C09K17/48
Applicant(s) Name: Lanzhou Univ.
Inventor(s) Name: Liu Mingzhu
Patent Agency Code: 62100
Patent Agent: lu xiaolei
Abstract The multifunctional super water-absorbing and water-retaining agent belongs to a multifunctional macromolecular material, and is formed from acrylic acid, alkali, cross-linking agent and initiating agent, and is characterized by that it also contains chemical fertilizer, microfertilizer, trace elements and distilled water, and its preparation method includes the following steps: except initiating agent, placing all the raw materials in anti-corrosive reator, stirring for 20-30 min. and regulating temp. to 40-45 deg.C, placing the above-mentioned mixed solution into another reactor, adding initiating agent at 35-45 deg.C to initiate polymerization to obtain porous white solid, air-drying and pulverizing to obtain granular material with 20-80 meshes, that is said invented product with several fertilizer effects.