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Acrylate emulsion and preparing method thereof

A technology of acrylate and emulsion, which is applied in textiles, papermaking, fiber treatment, etc. It can solve the problems of poor compatibility between hard monomer and modified starch, poor compatibility of modified starch, and poor stability of emulsion synthesis. , to achieve the effects of extremely high residual monomer content, high volatile organic content, and high emulsion stability

Active Publication Date: 2014-01-22
CHANGZHOU TIANMA GROUP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The shortcomings of this document are: (1) non-reactive emulsifier RN-30 is used for both pre-emulsification and emulsification, and the stability of emulsion synthesis is poor
(2) Using hydroxyethyl acrylate as a monomer will reduce the strength of the emulsion
(3) In the post-treatment stage, the oxidant tert-butyl hydroperoxide and the reducing agent Diaobai block are used to remove residual monomers. On the one hand, the use of Diaobai block is easy to produce formaldehyde, which is not environmentally friendly; on the other hand, the removal efficiency of this method is low. The effect is not good, there will still be a large amount of residual monomer
The deficiencies of this document are: (1) any one or both of acrylonitrile, vinyl acetate, vinyl tertiary carbonate, and styrene are used to form a hard monomer with methyl methacrylate, and the hard monomer is combined with modified starch Poor compatibility, especially vinyl acetate is prone to hydrolysis under low pH and high temperature conditions, so that there are more residues in the process of configuring the setting glue, which is difficult to control
(2) Using hydroxyethyl acrylate as a crosslinking monomer will reduce the strength of the emulsion
The above-mentioned deficiencies lead to poor adaptability of the emulsion and modified starch, therefore, it is also not suitable for the preparation of glass fiber wall coverings

Method used

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  • Acrylate emulsion and preparing method thereof
  • Acrylate emulsion and preparing method thereof

Examples

Experimental program
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Effect test

Embodiment 1）

[0020] The preparation method of the acrylate emulsion of the present embodiment has the following steps:

[0021] ①At ambient temperature (0-40°C, the same below), add 125kg of deionized water and 8kg of reactive emulsifier A (the It is a reactive emulsifier ADEKA SR-10 produced by Japan Adike Company), stirring at a speed of 180 rpm for 15 minutes.

[0022] After stirring evenly, add 6kg of methacrylic acid, 3kg of wetting agent (this example uses wetting agent 707 produced by Guangzhou Double Bond Chemical Trading Co., Ltd.), 20kg of crosslinking monomer A (this example uses It is a cross-linking monomer produced by Guangzhou Double Bond Chemical Trading Co., Ltd. HA), 120kg of methyl methacrylate, 100kg of butyl acrylate and 235kg of ethyl acrylate, after adding, first increase the speed to 450 rpm and stir for 30 minutes, then reduce the speed to 100 rpm and stir for 10 minutes Minutes, obtain the pre-emulsion of 617kg stand-by.

[0023] ②Emulsification:

[0024] Fir...

Embodiment 2～ Embodiment 3）

[0032] Each embodiment is basically the same as Embodiment 1, and the differences are shown in Table 1.

[0033] Table 1

[0034]

[0035] .

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Abstract

The invention discloses acrylate emulsion and a preparing method thereof. The acrylate emulsion is manufactured by (methyl) acrylate monomer, functional monomer, treating compound, crosslinking monomer A, crosslinking monometer B, a reaction type emulsifying agent A, a reaction type emulsifying agent B, a buffer agent, an initiating agent and deionized water. The preparing method comprises the steps of pre-emulsification, emulsification and discharge. The acrylate emulsion is excellent in suitability with modified starch. The acrylate emulsion can remarkably improve the permeability and the flexibility of manufactured sizing adhesives and further can remarkably improve the knot strength of manufactured glass fiber wall cloth. Furthermore, the manufactured sizing adhesives are better in suitability with impregnation equipment and free of roll bonding, skinning and sagging. The acrylate emulsion is extremely low in residual monomer, extremely low in the content of volatile organic compound, super-low in odor, free of toxicity and capable of achieving environmental friendliness.

Description

technical field [0001] The invention relates to an acrylate emulsion and a preparation method thereof, in particular to an acrylate emulsion suitable for preparing glass fiber wall coverings and a preparation method thereof. Background technique [0002] Fiberglass wall covering is a high-tech interior wall decoration material popular in Europe and the United States in the past ten years. It is widely used in hotels, hospitals, shopping malls, office buildings and home interior decoration. Its main features are: natural non-toxic, safe and environmentally friendly, fire-resistant and flame-retardant , Anti-aging, water resistance, acid and alkali resistance, anti-cracking, anti-insect bites, anti-impact, beautiful and elegant. [0003] The preparation process of glass fiber wall covering is as follows: firstly weave glass fiber to obtain glass fiber gray cloth; then print the glass fiber gray cloth to obtain semi-finished glass fiber wall covering; finally impregnate and sha...

Claims

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Application Information

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IPC IPC(8): C08F220/18C08F220/14C08F220/06C08F2/24D06M15/263
Inventor 陆栋梁卜赞林刘罗庆宣维栋金湘玉
Owner CHANGZHOU TIANMA GROUP CO LTD
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