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Modified waterborne acrylic resin and method for preparing artificial color sand from modified waterborne acrylic resin

A water-based acrylic acid and butyl acrylate technology, applied in the field of artificial colored sand preparation, can solve the problems of poor weather resistance, insufficient color fastness and acid and alkali resistance, and achieve the effects of excellent wear resistance, bright color and high adhesion

Active Publication Date: 2017-03-08
中山市巴德富化工科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The artificial colored sand prepared by using the above resins mainly has the characteristics of insufficient color fastness, acid and alkali resistance, and poor weather resistance.

Method used

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  • Modified waterborne acrylic resin and method for preparing artificial color sand from modified waterborne acrylic resin
  • Modified waterborne acrylic resin and method for preparing artificial color sand from modified waterborne acrylic resin
  • Modified waterborne acrylic resin and method for preparing artificial color sand from modified waterborne acrylic resin

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preparation example Construction

[0039] The preparation method of the modified water-based acrylic resin for preparing artificial colored sand of the present invention comprises the following process flow;

[0040] (1) Synthesis stage

[0041] a. Preparation of pre-emulsion: add 30% deionized water and 40% emulsifier in formula quantity, turn on the agitator, the rotating speed is 300Hz, drop into methyl methacrylate, butyl acrylate and hydroxyethyl acrylate in turn Esters, alkyl carboxylic acid cross-linking monomers, siloxanes, emulsifiers, persulfates and alkyl mercaptans, continue stirring for 30 minutes for later use;

[0042] b. Add the remaining deionized water and emulsifier into another reactor, stir evenly, and raise the temperature to 82°C; put in 5% pre-emulsion, and stir for 30 minutes;

[0043] c. Continuously and evenly drop the remaining pre-emulsion, keep warm at 81-83°C, add dropwise for 3 hours, and keep warm for 60 minutes after the dropwise addition;

[0044] (2) Post-processing stage ...

Embodiment 1

[0048] Embodiment 1 A kind of artificial colored sand water-based modified acrylic resin and its preparation

[0049] The present embodiment is made by following raw material proportioning, calculates by weight:

[0050] 320 parts of methyl methacrylate, 200 parts of butyl acrylate, 70 parts of hydroxyethyl acrylate, 14 parts of alkyl carboxylic acid crosslinking monomer, 3 parts of siloxane, 15 parts of emulsifier, 3.5 parts of persulfate, alkanes 3 parts of base mercaptan, 8 parts of ammonia water, 750 parts of water;

[0051] The alkyl carboxylic acid cross-linking monomer is: acrylic acid

[0052] The siloxane is: vinyltrimethoxysilane;

[0053] Described emulsifier is: sodium dodecylbenzenesulfonate;

[0054] Described persulfate is: ammonium persulfate;

[0055] Described alkyl mercaptan is: n-dodecyl mercaptan;

[0056] Its preparation method comprises the following steps:

[0057] (1) Synthesis stage

[0058] a. Preparation of pre-emulsion: add 30% deionized water...

Embodiment 2

[0065] Embodiment 2 A kind of artificial colored sand water-based modified acrylic resin and its preparation

[0066] The present embodiment is made by following raw material proportioning, calculates by weight:

[0067] 340 parts of methyl methacrylate, 190 parts of butyl acrylate, 60 parts of hydroxyethyl acrylate, 12.8 parts of alkyl carboxylic acid crosslinking monomer, 4.5 parts of siloxane, 15 parts of emulsifier, 3.5 parts of persulfate, alkanes 3.5 parts of base mercaptan, 7.5 parts of ammonia water, and 780 parts of water.

[0068] The alkyl carboxylic acid cross-linking monomer is: 6 parts of acrylic acid, 6.8 parts of methacrylic acid

[0069] The siloxane is: vinyltriethoxysilane;

[0070] The emulsifier is: 10 parts of potassium dodecylbenzenesulfonate, 5 parts of sodium lauryl polyoxyethylene ether sulfate;

[0071] Described persulfate is: sodium persulfate;

[0072] Described alkyl mercaptan is: isododecyl mercaptan;

[0073] The preparation process is the...

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Abstract

The invention relates to the field of preparation of artificial color sand, and in particular relates to modified waterborne acrylic resin and a method for preparing the artificial color sand from the modified waterborne acrylic resin. The modified waterborne acrylic resin is prepared from the following raw materials in parts by weight: 260 to 460 parts of methyl methacrylate, 100 to 300 parts of butyl acrylate, 20 to 80 parts of hydroxyethyl acrylate, 5 to 20 parts of an alkyl carboxylic acid crosslinking monomer, 1 to 5 parts of siloxane, 5 to 20 parts of an emulsifier, 1 to 5 parts of persulfate, 1 to 4 parts of alkyl sulfhydryl, 3 to 11 parts of ammonium hydroxide and 700 to 800 parts of water. The artificial color sand prepared from the acrylic resin has rich and bright color, is excellent in color uniformity, high in fouling resistance, ultrahigh in weather fastness and relatively high in bonding strength, and has the advantages of economy, fastness and ultrahigh wear resistance.

Description

[0001] Technical field: [0002] The invention relates to the field of artificial colored sand preparation, in particular to a water-based modified acrylic resin and a method for preparing artificial colored sand using the same. [0003] Background technique: [0004] The colored sand dyed by refined quartz sand has the characteristics of little restriction on mineral resources, no fading, economical and environmental protection, and the artificial dyed colored sand makes up for the shortcomings of natural colored sand such as few varieties, not bright colors and high price. Natural colored sand Even facing the crisis that will eventually be lost in the future. In this regard, based on the advantages of artificial dyed sand with bright colors, long-lasting and strong color retention, it is widely trusted and used by people. Artificially prepared colored sand is mainly used for various architectural coatings, such as various types of real stone paint, textured paint sandstone b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/14C08F220/18C08F220/28C08F220/06C08F230/08C08F2/26C08K5/37C04B26/06
CPCC04B26/06C04B2111/82C08F2/26C08F220/14C08F2400/02C08K5/37C04B14/06C04B2103/54C08F220/1804C08F220/281C08F220/06C08F230/08
Inventor 彭妃湛张城平杨文涛
Owner 中山市巴德富化工科技有限公司
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