Bentonite compounded methacrylic acid polymer high-strength water absorbing agent and preparation method thereof

A technology of compounding methacrylic acid and methacrylic acid, which is applied in the field of water-absorbing agents, can solve problems such as poor salt resistance, high cost, and difficult degradation, and achieve good strength and water absorption performance

Active Publication Date: 2019-08-30
上海舜斯新材料科技有限公司
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  • Abstract
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  • Application Information

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Problems solved by technology

For artificially synthesized polymer water-absorbing agents, their commercial applications are limited due to their high cost, poor salt resistance, and difficult to degrade.

Method used

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  • Bentonite compounded methacrylic acid polymer high-strength water absorbing agent and preparation method thereof
  • Bentonite compounded methacrylic acid polymer high-strength water absorbing agent and preparation method thereof
  • Bentonite compounded methacrylic acid polymer high-strength water absorbing agent and preparation method thereof

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Embodiment Construction

[0026] 1. Raw materials and instruments

[0027] Raw materials: α-methacrylic acid (analytical pure), Sinopharm Chemical Reagent Co., Ltd.; ammonium persulfate (analytical pure), Tianjin Jiaxing Chemical Co., Ltd.; sodium hydroxide (analytical pure, Hongyan Reagent Factory, Hedong District, Tianjin ; MBA (analytical pure), Tianjin Bodi Chemical Co., Ltd.; bentonite, Sinopharm Chemical Reagent Co., Ltd.; anhydrous sodium sulfate (analytical pure), Tianjin Bodi Chemical Co., Ltd.

[0028] Instruments: Infrared Spectrometer (Tensor 27), Bruke, Germany; Scanning Electron Microscope (SU-8010), Hitachi; Electronic Universal Tensile Testing Machine (KRT-W10KN), Creat Testing Instrument Co., Ltd.

[0029] 2. Preparation of water absorbent

[0030] Prepare a 2mol / L sodium hydroxide solution, weigh 3g of MAA and add it to a clean 50 mL plastic test tube; take a certain concentration of sodium hydroxide solution to neutralize MAA at 80% in an ice-water bath (at a constant temperature of...

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Abstract

The invention discloses a bentonite compounded methacrylic acid polymer high-strength water absorbing agent and a preparation method thereof. The water absorbing agent comprises the following preparation materials: bentonite, methacrylic acid, N'N-methylene bisacrylamide and ammonium persulfate, and is prepared from the raw materials by using a solution polymerization method. The prepared water absorbing agent has good strength and water absorption performance.

Description

technical field [0001] The invention relates to the technical field of water-absorbing agents, in particular to a bentonite composite methacrylic acid polymer high-strength water-absorbing agent and a preparation method thereof. Background technique [0002] Super absorbent material, also known as super absorbent polymer (SAP), is a functional polymer material with a three-dimensional cross-linked network structure, rich in strong hydrophilic groups such as carboxyl and hydroxyl groups, and is water-swellable and contains A high molecular polymer with a certain degree of crosslinking. Due to its good water absorption and biocompatibility, SAP has been widely used in the fields of medicine, sanitation, agriculture and forestry in recent years. Based on the raw material source of SAP, it can be divided into natural water-absorbing agent, synthetic water-absorbing agent and composite water-absorbing agent. The commercial application of artificially synthesized polymer water-a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/06C08F222/38C08F2/44C08K3/34
CPCC08F2/44C08F220/06C08K3/346C08F222/385
Inventor 马闯张恒强寇成陈鸿利
Owner 上海舜斯新材料科技有限公司
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