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Elastic emulsion for curing building putty and preparation method thereof

An elastic emulsion and putty technology, applied in the direction of filling slurry, etc., can solve the problem that construction putty cannot be solidified, and achieve good initial crack resistance and dynamic crack resistance

Inactive Publication Date: 2009-02-04
上海展辰涂料有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Invention Patent Publication No. CN 1258685A "Pure Acrylic Elastic Emulsion", CN 1557850A "Preparation Method of Silicone Modified Acrylic Elastomeric Emulsion", CN 1333299A "Preparation Method of Acrylic Elastomeric Emulsion" are not curing agents for construction putty, and cannot be used For the curing of construction putty

Method used

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  • Elastic emulsion for curing building putty and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] formula:

[0048] Methyl methacrylate 90kg

[0049] Styrene 30kg

[0050] Butyl acrylate 81kg

[0051] Isooctyl acrylate 155kg

[0052] Acrylic 7kg

[0053] Co-436 1.3kg

[0054] Np-10 2kg

[0055] AMPS 2kg

[0056] Sodium bicarbonate 1.88kg

[0057] Ammonium persulfate 2.22kg

[0058] Sodium formaldehyde sulfoxylate 0.8kg

[0059] tert-butyl hydroperoxide 0.8kg

[0060] AMP-95 5.0kg

[0061] T-504 0.5kg

[0062] RM-8W 0.6kg

[0063] Deionized water 330kg

[0064] Aggregation method:

[0065] 1. Prefabricated components

[0066] ①Mix 140kg water, 0.5kg Co-436 and 2kg AMPS to obtain prefabricated components①;

[0067] ②Mix 20kg of water and 0.7kg of ammonium persulfate to obtain prefabricated components②;

[0068]③Mix 90kg of methyl methacrylate, 30kg of styrene, 81kg of butyl acrylate, 155kg of isooctyl acrylate and 7kg of acrylic acid to obtain prefabricated components③;

[0069] ④Mix 100kg of water, 0.8kg of C0-436, and 2kg of NP-10 to obtain prefabr...

Embodiment 2

[0081] formula:

[0082] Methyl methacrylate 100kg

[0083] Butyl acrylate 90kg

[0084] Isooctyl acrylate 165kg

[0085] Acrylic 11kg

[0086] Co-436 1.2kg

[0087] Np-10 0.6kg

[0088] AMPS 1.0kg

[0089] Sodium bicarbonate 2.2kg

[0090] Ammonium persulfate 2.2kg

[0091] Sodium formaldehyde sulfoxylate 1.2kg

[0092] tert-butyl hydroperoxide 1.2kg

[0093] AMP-95 4.0kg

[0094] T-504 1.2kg

[0095] RM-8W 1.2kg

[0096] Deionized water 350kg

[0097] Aggregation method:

[0098] 1. Prefabricated components

[0099] ①Mix 145kg of water, 0.5kg of Co-436 and 1kg of AMPS to obtain prefabricated components①;

[0100] ②Mix 25kg of water and 0.7kg of ammonium persulfate to obtain prefabricated components②;

[0101] ③Mix 100kg of methyl methacrylate, 90kg of butyl acrylate, 165kg of isooctyl acrylate and 11kg of acrylic acid to obtain prefabricated components③;

[0102] ④Mix 105kg of water, 0.7kg of C0-436, and 0.6kg of NP-10 to obtain prefabricated components④;

...

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Abstract

The invention discloses an elastic emulsion used to cure construction putty and a preparation method thereof. The elastic emulsion contains the components with the following weight portion: 80 to 100 portions of methyl methacrylate, 0 to 60 portions of styrene, 70 to 90 portions of butyl acrylate, 135 to 165 portions of iso-octyl acrylate, 3 to 11 portions of acrylic acid, 0.2 to 1.2 portions of anionic emulsifier, 0.6 to 2.6 portions of non-ionic emulsifier, 1.0 to 2.2 portions of reactive emulsifier, 1.0 to 2.2 portions of buffer, 1.6 to 2.5 portions of initiator, 0.4 to 1.2 portions of sodium formaldehyde sulfoxylate, 0.4 to 1.2 portions of tert-butyl hydroperoxide, 2.0 to 6.0 portions of pH value regulator, 0.4 to 1.2 portions of defoamer, 0.4 to 1.2 portions of thickener, and 290 to 350 portions of water. The invention is rationally designed, the process is simple, putty layer cured by the product has high anti-cracking and dynamic anti-cracking performance at the early stage, which meets the needs of the construction industry.

Description

technical field [0001] The invention relates to an elastic room-temperature cross-linked acrylic ester copolymer emulsion, in particular to an elastic emulsion which can be used for curing construction putty and is modified by various ethylenic functional monomers. Background technique [0002] Construction putty, such as the three major categories of products stipulated in the scope of application of JG / T 157-2004 "Putty for Building Exterior Walls": powdery putty (based on cement, redispersible rubber powder, polymer water-soluble dry rubber powder, etc. agent), two-component putty (polymer emulsion, cement as binder), paste putty (polymer emulsion as binder). When in use, a curing agent is required for curing. At present, conventional curing agents are ordinary styrene-acrylic emulsion and pure acrylic emulsion. The curing agent has a high glass transition temperature and poor elasticity. Therefore, after adding putty powder with water in a certain proportion, the putty ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D5/34C08F220/18C08F2/24C08F4/30C08F2/38
Inventor 叶荣森
Owner 上海展辰涂料有限公司
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