High performance alkali swelling thickener and preparation method thereof

An alkali swelling and thickening agent technology, applied in chemical instruments and methods, polymer adhesive additives, pharmaceutical formulations, etc. Strong plasticity, increased viscosity, and excellent emulsifying properties

Inactive Publication Date: 2013-07-17
ZHONGSHAN POLYTECHNIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the light transmittance of the aqueous solution of the existing products on the market is not high, and the thermal stability is poor in the thickening system. Generally, the particles can only be suspended for one day at 40°C.
In addition, the rheological properties of existing products on the market are poor, and suitable manifolds cannot be made.

Method used

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  • High performance alkali swelling thickener and preparation method thereof
  • High performance alkali swelling thickener and preparation method thereof
  • High performance alkali swelling thickener and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A high-performance alkali-swellable thickener whose production formula (in kg) is:

[0034] (1) Methyl methacrylate: 400

[0035] (2) Butyl acrylate: 200

[0036] (3) Styrene: 150

[0037] (4) Ethylene acetate: 200

[0038] (5) Acrylic: 50

[0039] (6) AEO-9:10

[0040] (7) Ammonium persulfate: 2

[0041] (8) Polyvinyl alcohol: 10

[0042] (9) Deionized water: 1900.

[0043] Production Process:

[0044] (1) Pre-emulsification and batching: Add 1500kg deionized water, 10kg emulsifier AEO-9, 400kg methyl methacrylate, 200kg butyl acrylate, 150kg styrene, 200kg ethylene acetate and 50kg acrylic acid into the pre-emulsification kettle , and then vigorously stir for pre-emulsification until a stable pre-emulsion is obtained.

[0045] (2) Add 2kg of ammonium persulfate to 98kg of deionized water to make an initiator solution for later use.

[0046] (3) Add 10kg of polyvinyl alcohol to 90kg of deionized water to prepare a protective colloid solution for later use.

...

Embodiment 2

[0055] A high-performance alkali-swellable thickener whose production formula (in kg) is:

[0056] (1) Isooctyl acrylate: 300

[0057] (2) Butyl acrylate: 300

[0058](3) Methyl methacrylate: 100

[0059] (4) Styrene: 300

[0060] (5) Hydroxyethyl methacrylate: 50

[0061] (6) Tween-80: 10

[0062] (7) Potassium persulfate: 2

[0063] (8) Sodium carboxymethylcellulose (CMC): 10

[0064] (9) Deionized water: 1800.

[0065] Production Process:

[0066] (1) Pre-emulsification and batching: Add 1500kg of deionized water, Tween-80, and isooctyl acrylate, butyl acrylate, methyl methacrylate, styrene, and hydroxyethyl methacrylate into the pre-emulsification kettle for pre-emulsification , to obtain a stable pre-emulsion.

[0067] (2) Add 2kg of potassium persulfate to 98kg of deionized water to make an initiator solution for later use.

[0068] (3) Add 10kg sodium carboxymethyl cellulose to 90kg deionized water to prepare a protective colloid solution for later use.

[00...

Embodiment 3

[0074] A high-performance alkali-swellable thickener whose production formula (in kg) is:

[0075] (1) Ethyl methacrylate: 360

[0076] (2) Butyl acrylate: 280

[0077] (3) Methyl methacrylate: 120

[0078] (4) Methyl acrylate: 180

[0079] (5) N,N-methylenebisacrylamide: 70

[0080] (6) Sodium lauryl sulfate: 10

[0081] (7) Potassium persulfate: 2

[0082] (8) Sodium polymethacrylate: 10

[0083] (9) Deionized water: 1600.

[0084] Production Process:

[0085] (1) Pre-emulsification and batching: Add 1200kg of deionized water, sodium lauryl sulfate, and ethyl methacrylate, butyl acrylate, methyl methacrylate, methyl acrylate, N,N to the pre-emulsification kettle - Methylenebisacrylamide, pre-emulsified to obtain a pre-emulsion.

[0086] (2) Add 2kg of potassium persulfate to 98kg of deionized water to make an initiator solution for later use.

[0087] (3) Add 10kg of sodium polymethacrylate to 90kg of deionized water to prepare a protective colloid solution for lat...

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PUM

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Abstract

The invention discloses a high performance alkali swelling thickener which is characterized by comprising the components in parts by weight as follows: 1000-1010 parts of mixed acrylate monomer, 5-60 parts of emulsifier, 1-50 parts of initiator, 10-150 parts of protective colloid and 1600-1900 parts of deionized water. The mixed acrylate monomer is a mixture of soft monomer, a hard monomer and a crosslinking functional monomer. The invention further discloses a preparation method of the high performance alkali swelling thickener. The high performance alkali swelling thickener provided by the invention has the advantages of high swelling performance, high viscosity and high transparency, and is high temperature and low temperature resisting. The thickener is not only suitable for daily cosmetic and home nursing products and bonders, but also suitable for the field of well drilling in oil fields.

Description

technical field [0001] The invention relates to the technical field of thickeners, in particular to a high-energy alkali-swellable thickener and a preparation method thereof, which are mainly used in daily chemical products for suspending, stabilizing and thickening. Background technique [0002] Alkali-swellable thickener is a type of thickener that is insoluble in water at a low pH value, but can be dissolved or dissolved in water at a high pH value and exhibits thickening and thickening properties. Existing alkali-swellable thickeners are generally polymers with carboxyl functional groups obtained by free radical polymerization of acrylate monomers, which have good thickening function and rheological adjustment effect, and are easy to apply and operate (especially in emulsion form) products), has great industrial value. Applications of alkali-swellable thickeners include: latex paints, carpet backings, adhesives, paper coatings, pesticide products, personal care products...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/14C08F220/18C08F218/08C08F212/08C08F220/06C08F220/28C08F222/38C08F2/24A61K8/81C09D7/12C09J11/08C09K8/00
Inventor 王俊林跃华聂建华
Owner ZHONGSHAN POLYTECHNIC
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