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Cardanol unsaturated resin monomer and preparation method thereof

A technology of resin monomer and cardanol, applied in cardanol unsaturated resin monomer and its preparation, in the field of cardanol unsaturated resin, can solve the problems of poor mechanical properties and solvent resistance of unsaturated resin, and achieve excellent mechanical properties. Performance and water resistance, good water resistance, good mechanical properties

Inactive Publication Date: 2015-08-26
上海美东生物材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The invention provides a cardanol unsaturated resin monomer and a preparation method thereof. The cardanol unsaturated resin monomer and the preparation method thereof shall solve the mechanical properties and solvent resistance of the unsaturated resin in the prior art bad technical problem

Method used

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  • Cardanol unsaturated resin monomer and preparation method thereof
  • Cardanol unsaturated resin monomer and preparation method thereof
  • Cardanol unsaturated resin monomer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Accurately weigh 1000.0g of cardanol into the reactor, add 1.0g of hydroquinone, blow in nitrogen, stir and heat up to 80°C, add 10.0g of N,N-dimethylbenzylamine, increase the stirring speed, and slowly Add 473.5g of glycidyl methacrylate (GMA) dissolved in a small amount of hydroquinone (0.5g) dropwise. After the dropwise addition, the reaction temperature is slowly raised to 120°C. After 4 hours, it is cooled rapidly and the finished product is collected to obtain cashew nuts. Phenolic polymerized glycidyl methacrylate (CD-p-GMA).

Embodiment 2

[0017] Accurately weigh 885.0g CD-p-GMA, 144.0g acrylic acid, 1.7g hydroquinone and 1.0g cation exchange resin, heat up to 120°C, react for 5h, the measured acid value is less than 10mgKOH / g, stop the reaction, and vacuumize , cooling, and filtering to obtain acrylic acid-modified cardanol polymerized glycidyl methacrylate (AC-m-CD-p-GMA). (Main component molecular weight data: (m+H) + = 485.4, 483.4, 481.4)

Embodiment 3

[0019] Add 3wt% of the photoinitiator benzoin dimethyl ether to the prepared two kinds of cardanol-based unsaturated resin monomers and a certain pure acrylic resin, mix evenly and apply it on the transparent glass with a 50 μm film applicator, and then apply it Put it into Intelli Ray 400UV curing box, the light radiation intensity is 100mW·cm -2 , Investigate the coating film performance of monomer curing in different light curing time of 30, 60, 120s, and 240s. It can be seen from Table 1 that the coating film hardness of both CD-p-GMA and AC-m-CD-p-GMA increased sharply within 60s, and reached the optimal value of mechanical properties around 60s. Continue to prolong the irradiation time, the hardness continues to rise, but the speed slows down, while the impact resistance drops sharply, and the adhesion also drops. This is because the longer the UV radiation time, the more complete the photocuring, so the greater the crosslinking density of the cured film, the higher the...

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Abstract

The present invention provides a cardanol unsaturated resin monomer, which has the following structure formula. The present invention further provides a preparation method of the cardanol unsaturated resin monomer, wherein cardanol and an epoxy group are subjected to a ring-opening etherification reaction by using glycidyl methacrylate and by adopting N,N-dimethylbenzylamine as a catalyst to obtain cardanol polymerization glycidyl methacrylate, and the prepared CD-p-GMA and acrylic acid are subjected to an esterification reaction by adopting a cation exchange resin as a catalyst to obtain the acrylic acid-modified cardanol polymerization glycidyl methacrylate. The cardanol unsaturated resin monomer of the present invention provides characteristics of good mechanical property, excellent mechanical property, and excellent water resistance compared with the resin in the prior art.

Description

Technical field: [0001] The invention relates to the field of chemical industry, in particular to a cardanol unsaturated resin, in particular to a cardanol unsaturated resin monomer and a preparation method thereof. Background technique: [0002] Unsaturated resins generally refer to a class of resins containing highly reactive unsaturated double bonds in their molecular structures, and are now widely used in petroleum, metallurgy, papermaking, medicine, construction and other industries. However, bisphenol A, an important raw material for the synthesis of unsaturated resins, is basically derived from petrochemical raw materials. With the increasing depletion of petroleum resources and increasingly serious environmental pollution, it has become a scientific research field in the world to find high-quality, cheap, and renewable substitutes for petroleum-based raw materials. hotspots and development trends. Cardanol is the main component of cashew nut shell liquid. Most of it...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C69/54C07C67/08C08F4/02
CPCC07C67/08C07C67/29C07C69/54C08F4/02C08F222/20
Inventor 黎炘宋学良周大程
Owner 上海美东生物材料股份有限公司
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