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Frankincense-modified acrylate emulsion and its preparation method and use

A technology of acrylate and rosin modification, which is applied in the direction of graft polymer adhesives, adhesive types, adhesives, etc. It can solve the problems of poor viscosity increasing effect and poor compatibility, and achieve low cost and good initial tack. Good, improve the effect of wetting

Active Publication Date: 2013-10-09
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Acrylic esters have strong polarity, poor compatibility with most tackifying resins, and poor tackifying effect

Method used

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  • Frankincense-modified acrylate emulsion and its preparation method and use
  • Frankincense-modified acrylate emulsion and its preparation method and use
  • Frankincense-modified acrylate emulsion and its preparation method and use

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] In the rosin modified acrylate emulsion, the proportioning ratio of each component by weight fraction is the following table 1:

[0032] Table 1 is the ratio table of each component weight fraction of rosin modified acrylate emulsion

[0033]

[0034] The preparation method of described rosin modified acrylate emulsion, the steps are as follows:

[0035] a. Take methyl acrylate, butyl acrylate, acrylic acid, hydroxyethyl acrylate, acrylamide, rosin resin and lauryl mercaptan according to the above ratio and mix them into the first mixed monomer and the second mixed monomer;

[0036] b. Preparation of seed emulsion: Add 60% deionized water, 40% emulsifier, and 30% initiator into the reaction kettle, stir for 10 minutes, raise the temperature to 75°C, and drop 5% of the mass within 15 minutes The first mixed monomers are kept for 30 minutes after the dropwise addition to obtain the seed emulsion.

[0037] c. In the seed emulsion, add the remaining first mixed monome...

Embodiment 2

[0050] In the rosin-modified acrylate emulsion, the proportioning ratio of each component by weight fraction is the following table 4:

[0051] Table 4 is the weight ratio table of each component of rosin modified acrylate emulsion

[0052]

[0053] The preparation method of rosin modified acrylate emulsion, the steps are as follows:

[0054] a. Methyl acrylate, butyl acrylate, methacrylic acid, 3-hydroxypropyl acrylate, acrylamide, rosin resin and DTBP molecular weight regulator were mixed into the first mixed monomer and the second mixed monomer according to the above proportioning ratio. body;

[0055] b. Preparation of seed emulsion: Add 60% of deionized water, 60% of emulsifier, and 50% of initiator in the above ratio into the reaction kettle, stir for 10 minutes, raise the temperature to 80°C, and drop 5% of the mass within 15 minutes The first mixed monomers were added dropwise and then incubated for 30 minutes to obtain a seed emulsion.

[0056] c. In the seed e...

Embodiment 3

[0070] In the rosin-modified acrylate emulsion, the specific component distribution ratio of each component by weight is shown in Table 7 below:

[0071] Table 7 is the weight ratio table of each component of rosin modified acrylate emulsion

[0072]

[0073] The preparation method of rosin modified acrylate emulsion, the steps are as follows:

[0074] a. Take methyl acrylate, isooctyl acrylate, acrylic acid, 2-hydroxybutyl acrylate, methacrylamide and rosin resin according to the above ratio and mix them into the first mixed monomer and the second mixed monomer;

[0075] b. Preparation of seed emulsion: Add 60% deionized water, 55% emulsifier, and 45% initiator into the reaction kettle, stir for 10 minutes, raise the temperature to 78°C, and drop 5% of the mass within 15 minutes The first mixed monomers were incubated for 30 minutes after the dropwise addition to obtain the seed emulsion;

[0076] c. In the seed emulsion, add the remaining first mixed monomer and the mi...

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Abstract

The invention discloses a frankincense-modified acrylate emulsion and its preparation method and use. The frankincense-modified acrylate emulsion comprises, by mass, 25-48% of alkylacrylate, 1-4% of alkyl carboxylic acid, 1-4% of a hydroxyalkyl ester, 1-4% of acrylamide, 0.5-1.5% of rosin resin, 0.25-0.5% of an initiator, 0.2-1.5% of an emulsifier, 0-0.05% of a molecular weight conditioning agent and 5-60% of water. The invention also discloses PVC floor glue prepared from the frankincense-modified acrylate emulsion. The frankincense-modified acrylate emulsion has a hard-core soft-shell structure. The PVC floor glue prepared from the frankincense-modified acrylate emulsion has the advantages that through utilization of the tackifying resin and the hard-core soft-shell structure, base material wettability is improved; material adhesiveness is improved; initial adhesiveness is good; bonding strength is high; a film-forming assistant, a plasticizer and an antifreezing agent are avoided; and environmental friendliness is obtained.

Description

technical field [0001] The invention relates to an acrylic emulsion, in particular to a rosin-modified acrylic emulsion, a preparation method and an application; the application is in the preparation of PVC floor glue. Background technique [0002] Pressure-sensitive adhesive is a special adhesive, in most cases, it is coated on various substrates and processed into pressure-sensitive tapes, pressure-sensitive labels and other adhesive products; when applying appropriate pressure, the pressure-sensitive adhesive can be made Adhesive products are firmly bonded to the surface of the adherend. Acrylate emulsion adhesive is environmentally friendly and economical, and is a hot spot for development at home and abroad. Usually, acrylate emulsion adhesives do not need to introduce tackifying resin, but sometimes in order to broaden the performance, such as increasing the wettability of the pressure-sensitive adhesive surface and improving the adhesion to the surface of non-polar s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F289/00C08F220/14C08F220/18C08F220/06C08F220/28C09J151/00
Inventor 张心亚王利宁谢德龙高尚
Owner SOUTH CHINA UNIV OF TECH
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