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Gum rosin base emulsifier and preparation and use thereof

A rosin-based and emulsifier technology, applied in chemical instruments and methods, transportation and packaging, chemical/physical processes, etc., can solve problems affecting the performance of rosin ester emulsions, not environmentally friendly products, environmental pollution, etc., to maintain performance , increase compatibility, reduce the effect of plasticization

Active Publication Date: 2008-11-05
江西金安林产实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The price of rosin ester emulsion produced abroad is very high; there are two methods for domestic production of rosin ester emulsion, one is to dissolve rosin ester with organic solvent, then add emulsifier and water to emulsify, and then evaporate the organic solvent to obtain rosin The ester emulsion contains a small amount of organic solvent, which has a strong smell and causes environmental pollution. It is not a real environmental protection product; the second is to add a large amount of emulsifier to emulsify the rosin ester. The rosin ester emulsion produced by this method is due to the large amount of emulsifier added. It seriously affects the performance of rosin ester emulsion as a tackifier

Method used

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  • Gum rosin base emulsifier and preparation and use thereof
  • Gum rosin base emulsifier and preparation and use thereof
  • Gum rosin base emulsifier and preparation and use thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The first step is to put 600 grams of gum rosin and 1.2 grams of zinc oxide into the reaction bottle, add 260 grams of n-octanol dropwise when heated to 230 ° C, then keep warm and reflux for 5 hours, then raise the temperature to 270 ° C for 8 hours, and vacuum for 1 hour , make rosin ester, and the acid value measured by sampling is 12mgKOH / g;

[0034] In the second step, the temperature is lowered to 240°C, 0.1 g of hydroquinone is added to the rosin ester, and 128 g of acrylic acid is added dropwise. It is advisable that there is no reflux. After the drop is completed, react for 2 hours, and then pass carbon dioxide for 30 minutes to obtain acrylic acid. sex rosin esters;

[0035] The third step is to lower the temperature to 200°C, add 350 grams of polyethylene glycol PEG200 and 1.5 grams of zinc oxide to the acrylic modified rosin ester, slowly raise the temperature to 250°C for 26 hours, and collect 31.1 grams of generated water to obtain a rosin-based surface a...

Embodiment 2

[0038] The first step is to drop 1000 grams of gum rosin and 1 g of zinc oxide into the reaction bottle, add 300 grams of isooctyl alcohol dropwise when heated to 120 ° C, and react for 10 hours to obtain rosin ester, and the acid value is 28.9 mgKOH / g measured by sampling;

[0039] In the second step, 0.13 grams of hydroquinone was added to the rosin ester, 13 grams of acrylic acid was added dropwise, and the addition reaction was carried out at 120° C. for 2 hours to obtain an acrylic acid-modified rosin ester;

[0040] In the third step, the temperature is raised to 150° C., 108 grams of polyethylene glycol PEG600 and 5 g of zinc oxide are added to the acrylic modified rosin ester, and the condensation reaction is performed for 20 hours to obtain a rosin-based surfactant;

[0041] The fourth step is to lower the temperature to 60°C, add 17.8 grams of maleic anhydride to the rosin-based surfactant, perform an esterification reaction for 8 hours, then add 16.3 grams of sodium ...

Embodiment 3

[0043] The first step is to put 1000 grams of gum rosin into the reaction bottle, add 1000 grams of iso-octanol and 1000 grams of n-octanol dropwise when heated to 280 °C, and react for 15 hours to obtain rosin ester. The acid value is 9 mgKOH / g measured by sampling ;

[0044] In the second step, the temperature was lowered to 260° C., 0.9 gram of hydroquinone was added to the rosin ester, 600 grams of acrylic acid was added dropwise, and the addition reaction was carried out for 5 hours to obtain the acrylic acid-modified rosin ester;

[0045] In the third step, 2530 grams of polyethylene glycol PEG1500 was added to the acrylic acid-modified rosin ester, and condensation reaction was carried out at 260° C. for 30 hours to obtain a rosin-based surfactant;

[0046] The fourth step is to add 220 grams of maleic anhydride to the rosin-based surfactant, perform esterification reaction at 260°C for 10 hours, then add 2.2 grams of sodium bisulfite, and perform a conjugate reaction a...

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Abstract

The invention discloses a rosin-based emulsifier and a preparation method and application thereof. The rosin-based emulsifier having the following structural formula is prepared by the steps of reaction between rosin and octanol, addition reaction with acrylic acid, condensation reaction with polyethylene glycol, esterification with maleic anhydride and conjugated reaction with sodium bisulfite. The rosin-based emulsifier prepared by the invention has little effect on the performance of a rosin ester emulsion, can emulsify rosin ester directly without remixing with other surfactants and the rosin ester emulsion prepared has the advantages of small particle size, stable storage and good performance.

Description

technical field [0001] The invention relates to the technical fields of chemical industry such as adhesives and coatings, in particular to a rosin-based emulsifier and its preparation method and application. Background technique [0002] As a water-based tackifier, rosin ester emulsion is mainly used in the preparation of water-based ink, water-based pressure-sensitive adhesive and water-based paper-plastic laminating adhesive. Rosin ester is difficult to emulsify due to its high molecular weight, large group and insoluble in water. The price of rosin ester emulsion produced abroad is very high; there are two methods for domestic production of rosin ester emulsion, one is to dissolve rosin ester with organic solvent, then add emulsifier and water to emulsify, and then evaporate the organic solvent to obtain rosin The ester emulsion contains a small amount of organic solvent, which has a strong smell and causes environmental pollution. It is not a real environmental protecti...

Claims

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Application Information

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IPC IPC(8): B01F17/52C09F1/04C09K23/52
Inventor 曾广建范德明徐社阳陈就记
Owner 江西金安林产实业有限公司
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