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Epoxy resin curing agent based on methyl methacrylate bottom waste and its preparation method and application

A technology for curing methyl methacrylate and epoxy resin, which is applied in the preparation of carboxylic acid amides, chemical instruments and methods, preparation of organic compounds, etc. problems, to reduce personal injury and environmental pollution, simple production process, and good thermal stability.

Active Publication Date: 2019-12-06
青岛哈工资源环境技术有限公司
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  • Abstract
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  • Application Information

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Problems solved by technology

[0003] The present invention solves the technical problem of environmental pollution of the bottom waste of methyl methacrylate distillation reaction and brings great harm to human beings, and can also solve the pollution problem in the use process of low molecular weight polyethylene polyamine; and provides a methyl methacrylate based Epoxy resin curing agent for methyl acrylate bottom waste and its preparation method and application

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  • Epoxy resin curing agent based on methyl methacrylate bottom waste and its preparation method and application
  • Epoxy resin curing agent based on methyl methacrylate bottom waste and its preparation method and application
  • Epoxy resin curing agent based on methyl methacrylate bottom waste and its preparation method and application

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specific Embodiment approach 1

[0029] Specific embodiment one: adopt the reflux reactor with water divider to prepare curing agent in the present embodiment, concrete preparation method is to carry out according to the following steps:

[0030] Step 1: Add 81.057g of waste produced in the production of methyl methacrylate to the reactor, then add 74.132g of triethylenetetramine, add 4.6g of cyclohexane into the water separator as a water-carrying agent, and add 1g of Cyclohexane, heated to reflux reaction at 70°C, methanol or water in the system is taken out during the reaction, when the interface between methanol and cyclohexane no longer rises (when the interface between water and cyclohexane no longer rises), the system There is no methane, the reaction ends;

[0031] Step 2, then add 18.684g of dodecyl to tetradecyl glycidyl ether (AGE), and heat the reaction at 70°C for 30 minutes, the obtained curing agent, the product is transferred from the outlet at the bottom of the kettle to the storage tank Sav...

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Abstract

The invention discloses an epoxy resin curing agent based on methyl methacrylate reactor bottom waste materials and a preparation method and application thereof, and belongs to the field of curing agents. The epoxy resin curing agent aims to solve the technical problems that the environment pollution of the methyl methacrylate reactor bottom waste materials is caused and a huge harm is brought tohuman and also can solve the pollution problem in a use process of a low-molecular-weight polyethylene polyamine. The structural formula of the curing agent disclosed by the invention is shown in thespecification. The preparation method comprises the following steps: 1: taking waste materials generated by producing methacrylate, adding polyethylene polyamine, taking cyclohexane as a water-carrying agent, and carrying out heating reflux until no methyl alcohol is in reactant; 2: then, adding AGE (Alkyl Glycidyl Ether), and carrying out heating reaction for 30min to obtain the curing agent. Thecuring agent is used for curing epoxy resin.

Description

technical field [0001] The invention belongs to the field of curing agents; in particular, it relates to a curing agent and its preparation method and application. The invention is mainly used for room temperature and medium temperature curing of epoxy resin. This product has the characteristics of low volatility, safety, non-toxicity, environmental protection and low cost. Background technique [0002] The acetone cyanohydrin method produces methyl methacrylate. In the process of methanol esterification and distillation purification, the oligomers and tars of methyl methacrylate will be dissolved in methanol due to continuous high temperature, which has no use value. Its discharge and incineration cause water and air pollution respectively. The environmental pollution and public safety hazards caused by it have brought great harm to human beings. Contents of the invention [0003] The present invention solves the technical problem of environmental pollution of the bott...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G59/64C07C231/12C07C233/36
CPCC07C231/02C07C231/12C08G59/64C07C233/36
Inventor 于朝生王凤鑫刘辉刘广民
Owner 青岛哈工资源环境技术有限公司
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