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Preparation method of light-cured tetrahydrophthalic anhydridized tung oil acrylate resin

A technology of tetrahydrophthalic anhydride and acrylate, which is applied in the field of photocuring tetrahydrophthalic anhydride tung oil acrylate resin and its preparation, can solve the problem of no obvious advantages in adhesion, elasticity, gloss and weather resistance, limited application, and high toxicity of raw materials and other problems, to achieve the effect of improving curing speed, excellent weather resistance, and small curing volume shrinkage

Active Publication Date: 2013-04-17
JINYU HENAN PACKAGING +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, due to the structural characteristics of the above-mentioned photocurable resins, the coating layer formed by curing the photocurable system as the matrix resin has no obvious advantages in adhesion, elasticity, gloss and weather resistance, and the raw materials are highly toxic.
Therefore, the application of such resins in packaging such as food, medicine and agricultural by-products is limited

Method used

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  • Preparation method of light-cured tetrahydrophthalic anhydridized tung oil acrylate resin
  • Preparation method of light-cured tetrahydrophthalic anhydridized tung oil acrylate resin
  • Preparation method of light-cured tetrahydrophthalic anhydridized tung oil acrylate resin

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] B, 106g of tetrahydrophthalic anhydrided tung oil obtained in step a, reflux water-carrying agent benzene 100mL and polymerization inhibitor hydroquinone 0.1g are added in the four-port reactor with agitator, thermometer and reflux condenser, and the temperature is raised to Melting at 70°C, when melting is uniform and condensing reflux occurs, add 10g of β-hydroxyethyl acrylate, heat up to 80°C for esterification reaction, and react under this reflux condition until the acid value of the system does not change, and the reaction ends; then Evaporate benzene, wash the product (3 times with 40 mL of hot water at 80°C) to remove unreacted polymerization inhibitor, and finally dry at 105°C for 2 hours to obtain 114.0 g of the product: Ⅳ Hydrophthalated tung oil acrylate-β-hydroxyethyl ester resin (for the infrared analysis spectrum of this product, see figure 2 ).

[0050] Embodiment 2: basically the same as Embodiment 1, the difference is:

[0051] In step b: the reflux...

Embodiment 2

[0052] Embodiment 3: basically the same as Embodiment 1, the difference is:

[0053] In step b: 100 mL of xylene as the refluxing agent, 0.1 g of nitrobenzene as the polymerization inhibitor, and 10 g of β-hydroxypropyl acrylate are added, and the temperature is raised to 138 ° C for esterification; 113.7 g of the product is obtained: tetrahydrophthalic anhydride Tung Oil Acrylate-β-Hydroxypropyl Ester Resin.

Embodiment 3

[0054] Embodiment 4: basically the same as Embodiment 1, the difference is:

[0055] In step a: then add 50 g of tetrahydrophthalic anhydride weighed; 135.5 g of tetrahydrophthalic anhydride-treated tung oil as an intermediate product;

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Abstract

The invention discloses light-cured tetrahydrophthalic anhydridized tung oil acrylate resin and a preparation method thereof. The preparation method comprises the followings steps: tung oil and a tetrahydrophthalic anhydride monomer are subjected to the Diels-Alder reaction so as to produce an intermediate product, namely, tetrahydrophthalic anhydridized tung oil; and the tetrahydrophthalic anhydridized tung oil and an acrylic hydroxy ester monomer are subjected to an esterification reaction so as to prepare the product, wherein the mass ratio of the used raw materials is that the tung oil / the tetrahydrophthalic anhydride monomer / the acrylic hydroxy ester monomer is equal to 100:(45 to 55):(10-40). The product disclosed by the invention has a main chain which is a longer flexible chain, and the structural characteristics of a bonded rigid double six-membered ring; and the light-cured tetrahydrophthalic anhydridized tung oil acrylate resin is applied to the fields, such as light-cured solvent-free inks and coatings and the like as matrix resin, the rigidity, the toughness, the glossiness, the adhesive force to a base material, the weather-resisting property and the like of the inks, the coatings and the like can be adjusted within a wider range, so that the application performance is convenient to optimize and the fossil resources can be saved.

Description

technical field [0001] The invention belongs to the technical field of photocurable resins, and in particular relates to a photocurable tetrahydrophthalic anhydride tung oil acrylate resin and a preparation method thereof. Background technique [0002] With the implementation of the strategy of "energy saving, emission reduction and sustainable development", many countries in the world are actively developing technology research and development of chemical products prepared by replacing "fossil" resources with renewable resources. Photocurable materials are an important area of ​​concern one. [0003] Using natural renewable vegetable oil to replace petroleum and other "fossil" resources to prepare light-curable materials, current research reports are mostly on soybean oil-modified light-curable resins. The new trend is that soybean oil-based resins are changing to other vegetable oil-based resins. [0004] my country is an important producer of tung oil, with an average a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C69/76C07C67/08C09D11/00C09D4/02C09D11/101
Inventor 陈玉风王经武李中灵代佳丽夏令红吕亚男李飞张燕超位秀莲
Owner JINYU HENAN PACKAGING