Foam composition with epoxy group structure and preparation method and application thereof

A composition and epoxy-based technology, which is applied in the field of epoxy-based structural foam compositions, can solve the problems such as the decrease of material mechanical strength, and achieve the effects of reducing the weight of the whole vehicle, improving the safety of use and simple processing method.
CN105504682AInactive Publication Date: 2016-04-20YOULIAN NEW MATERIAL TECH SHANGHAI CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
YOULIAN NEW MATERIAL TECH SHANGHAI CO LTD
Publication Date
2016-04-20
Estimated Expiration
Not applicable · inactive patent

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Abstract

Th invention discloses a foam composition with an epoxy group structure and a preparation method and application thereof. The foam composition with the epoxy group structure is prepared from, by weight, 100 parts of bisphenol-A epoxy resin, 15-45 parts of epoxy resin toughening agent, 1-7 parts of foaming agent, 1-15 parts of dicyandiamide curing agent, 0.2-5 parts of urea curing accelerator, 28-80 parts of filler, 15-40 parts of fibers and 1-10 parts of thixotropic agent. The foam composition is prepared by adding the raw materials step by step and then conducting processing kneading and curing foaming. Compared with an existing epoxy foaming material, the foam composition has higher shearing strength and compressive strength, and meanwhile the processing method is simple; the foam composition can serve as structural foam to be used as a reinforcing material in automobiles or planes, when the foam composition is used in a whole automobile, the weight of the whole automobile can be reduced, energy absorption of an automobile framework can further be improved under the collision situation, and therefore the safety of the whole automobile is improved. In addition, the foam composition can be applied to other transportation and mechanical equipment which are possibly subjected to collisions.
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Description

technical field

[0001] The invention relates to an epoxy-based structural foam composition, in particular to an epoxy-based structural foam composition, its preparation method and application. Background technique

[0002] Epoxy resin structural foam is a low-density foam. It has low water absorption and shrinkage after curing, and has good adhesion and chemical stability to metal materials. Therefore, epoxy resin structural foam is usually used in automobiles and aerospace. Transportation and construction fields such as aviation and ocean transportation.

[0003] In recent years, automobile lightweight has become an effective measure to reduce automobile emissions and improve combustion efficiency, and it is also the main direction for the development of automobile materials, resulting in a rapid increase in the amount of plastic used in automobiles. While achieving the purpose of reducing the weight of the vehicle, the safety of the vehicle is also the main factor that mu...

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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