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Castor oil-based polyurethane acrylate and preparation method as well as application thereof

A technology based on polyurethane acrylate and castor oil, which is applied in polyurea/polyurethane coatings, polyurea/polyurethane adhesives, applications, etc., can solve the problems of complex process control, high catalyst price, and harsh conditions, and achieve anti- Effect of improved hydrolysis properties, high tensile strength and elongation at break, excellent flexibility and adhesion

Active Publication Date: 2016-05-25
广州纽楷美新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Mainly divided into three methods, one is the epoxy ring-opening method, and the polyol is prepared by the ring-opening reaction of epoxy triglyceride. It is an ozone oxidation method. In the presence of a catalyst, the double bond on the triglyceride fatty acid chain is oxidatively broken and reduced to a hydroxyl group with ozone. The vegetable oil polyol prepared by this method has a primary hydroxyl group at the chain end, and the polymerization activity is higher. Strong, the conversion rate is close to the theoretical value, but the conditions are relatively harsh; the third is the carbonylation method, the triglyceride double bond undergoes a carbonylation reaction under the catalytic oxidation of rhodium or cobalt complexes to generate branched aldehyde groups, and the latter in Reduction to polyols under the catalysis of Raney nickel, the carbonylation method omits the epoxidation process, but the catalyst price is high, and the process control is relatively complicated

Method used

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  • Castor oil-based polyurethane acrylate and preparation method as well as application thereof
  • Castor oil-based polyurethane acrylate and preparation method as well as application thereof
  • Castor oil-based polyurethane acrylate and preparation method as well as application thereof

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Experimental program
Comparison scheme
Effect test

Embodiment

[0084] One, the synthetic steps of intermediate product (V) polyhydroxy castor oil:

[0085] Add castor oil (115g), 2-mercaptoethanol (156g) and 2-hydroxyl-2-methyl-1-phenylacetone (1173, 1.64g) into a dry single-necked bottle, stir well at room temperature, 20mW / cm 2 React under the irradiation of ultraviolet light until the infrared spectrometer can not detect the 1657cm in the system -1 The double-bond signal can also be tracked at 5.42ppm by NMR. Then add an appropriate amount of chloroform to dilute the product, wash off excess 2-mercaptoethanol and residual 1173 with distilled water and saturated NaCl solution successively, dry the organic phase with anhydrous magnesium sulfate, and rotary evaporate to obtain the intermediate product (V) polyhydroxy castor oil.

[0086] Two, the synthetic steps of target product (1) urethane modified castor oil (meth) acrylate resin:

[0087] (1) Add isophorone diisocyanate (IPDI, 5.56g) and dibutyltin dilaurate (DBTDL, 0.013g) into a...

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Abstract

The invention discloses castor oil-based polyurethane acrylate and a preparation method as well as application thereof. The castor oil-based polyurethane acrylate is hexa-functional or octa-functional castor oil-based polyurethane (methyl) acrylate resin. An acrylate radical comprises a methacrylate radical and an acrylate radical, and is suitable for carrying out free radical polymerization. Under the action of a photoinitiator, the resin is irradiated by ultraviolet light and can generate cross linking at a higher speed. A film formation product of the castor oil-based polyurethane acrylate has excellent flexibility and adhesive force; the hardness and the glossiness of a cured film are obviously improved; the castor oil-based polyurethane acrylate can be used as a formula ingredient of a photo-cured coating material, ink, and an adhesive.

Description

technical field [0001] The invention relates to the field of chemical synthesis, and mainly relates to a castor oil-based urethane acrylate and its preparation method and application, in particular to the preparation of a high-functionality castor oil-based urethane (meth)acrylate. Background technique [0002] With the depletion of the world's petrochemical resources and the deterioration of the environment, the world is facing the dual pressure of sustainable economic development and environmental protection. People have deeply realized that the transformation and utilization of biomass resources is an important way for the sustainable development of society in the future. . Natural triglyceride oil-based polymer is a promising green polymer, which has shown great social significance and economic value in the fields of coatings and composite materials. Since it can achieve sustainable development from raw material sourcing to waste recycling, and the whole process is extr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/75C08G18/67C08G18/66C08G18/48C08G18/32C08G18/10C09D175/14C09D11/101C09D11/102C09J175/14C08L75/14
CPCC08G18/10C08G18/672C08G18/755C08L75/14C09D11/101C09D11/102C09D175/14C09J175/14C08G18/387
Inventor 何明辉崔艳艳
Owner 广州纽楷美新材料科技有限公司
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