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Introduction Of Chemical Characteristics Of Laminated Tube

Oct 12, 2017

Bisphenol A (diphenol propane) glycidyl ether epoxy resin (referred to as bisphenol A epoxy resin) is the most important, its production accounts for about 90% of epoxy resin [closed. And the other is an epoxidized olefin resin, which is an epoxy resin prepared from a low molecular weight (or high molecular weight) linear, or cyclic compound containing a double bond, including epoxidized aliphatic olefins such as ring Oxidized polybutadiene), alicyclic epoxy and mixed epoxidized olefins (e.g., vinyl hexene epoxides), and the like.Laminated Tube

Epoxy resin can be different and amine, acid drunk, acid, polyphenols and other reactive curing agent addition reaction, and through the gradual polymerization of cross-linked to form a three-dimensional network structure; but also with many polymers such as trimer , Polyphthalamide, polysulfide rubber and the like to form a copolymer. Therefore, the epoxy resin is also a variety and characteristics of the large family groan], can be designed by the formula to meet the requirements of the performance, such as good electrical insulation, chemical resistance, high mechanical strength, temperature and other properties of the resin The Laminated Tube

Epoxy resin at room temperature viscosity, often need to add some thinner to help dipping fiber. For the structural material because of its brittle slightly larger, so the toughening of epoxy resin is the subject of many scholars today. In addition, the price of epoxy resin is expensive, so that its application in the field of reinforced plastics subject to certain restrictions.Laminated Tube

Phenolic resin Phenolic resin is formed by the condensation reaction of phenols (such as phenol, cresol, xylenol, resorcinol, etc.) with aldehydes such as formaldehyde, acetaldehyde, furfural and the like. There are two types of phenolic resin: one is thermosetting resin, the amount of ingredients than the aldehyde in excess, with alkaline catalyst (the pH of the reaction solution 7 to 11.) When these resins are heated, the reactive functional groups between the polycondensation of bulk polymers; The polymerization process is divided into three stages: A-type resin - soluble in alkaline aqueous solution and ketone and other solvents; B-type resin - insoluble in alkaline aqueous solution, can be partially dissolved in the fen levulone; c Resin - insoluble non-melting mesh structure of solid material.Laminated Tube