Low-viscosity cardanol solidifying agent of epoxy resin and preparation method thereof

A cardanol epoxy resin, low-viscosity technology, applied in the field of chemistry, can solve the problems of low performance, unenvironmental curing agent, poor mechanical properties, etc., and achieves the effects of wide ratio range, improved curing agent performance, and excellent toughness.
CN101319042AInactive Publication Date: 2008-12-10上海美东生物材料股份有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
上海美东生物材料股份有限公司
Publication Date
2008-12-10
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a low-viscosity cardanol epoxy resin curing agent which has a structural formula shown on the right. The method for preparing the low-viscosity cardanol epoxy resin curing agent utilizes reaction of cardanol, p / m-benzene dimethylamine and paraformaldehyde to prepare the low-viscosity cardanol epoxy resin curing agent. The low-viscosity cardanol epoxy resin curing agent has no solvent, has no irritation, is nontoxic and environment-friendly, is mild in heat release, low in color, low in viscosity, and moderate in curing speed, can be cured at a low temperature, and simultaneously has superior anti-corrosive and protective properties; and cured products have superior toughness, good strength, superior adhesion and invasive ability on substrates, and superior low surface construction performance, and are normally used on wet and rusty surfaces.
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Description

Technical field:

[0001] The invention relates to the field of chemistry, in particular to organic macromolecular compounds, in particular to a low-viscosity cardanol epoxy resin curing agent and a preparation method thereof. Background technique:

[0002] Curing agent is an indispensable and important component in the application field of epoxy resin, and it can determine the physical properties of cured products just like epoxy resin. Commonly used curing agents include aliphatic amines, alicyclic amines, aromatic amines, acid anhydrides, polyamides, etc. The reaction mechanism between the curing agent and the epoxy resin is that the active hydrogen contained in the curing agent opens the epoxy group and makes the epoxy resin exchange. Joint curing. However, commonly used curing agents have problems in terms of environmental protection, usability, and mechanical properties. For example, amine curing agents are highly volatile, highly toxic, and harmful to human bodies. Mo...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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