How to make epoxy resin as a molding agent? What raw materials are used in epoxy resins?

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Ceramic products use epoxy resin as molding agent, vaporized and evaporated between 300-400 degrees, and its gas directly passes through the vacuum pipeline to the vacuum pump, will it cause pollution to the pipeline and pump? As the atomized gas passes through the pipeline, its temperature continues to drop, will the epoxy resin's gum state regain at 100 degrees (or other temperature ranges)? If the above problems exist, is it feasible to install a combustion device at the extraction port?

If so, how much temperature would it take to burn the atomized epoxy into an irreducible gas? Ask for advice from those who have insight!! Question added:

Hello and thank you for your kindness! Originally, this equipment was for the molding agent paraffin, because the paraffin wax has a low melting point, and the extracted gas will be collected in the grease collection tank between the furnace body and the vacuum pump, and then the residual wax grease will be cleaned with hot water. The ready-made agent is epoxy resin, and (its characteristics are not yet known) the most worrying are:

When the atomized gas passes through the pipeline (or dust tank, valve, etc.), its temperature will continue to drop, and at 100 degrees (or other temperature ranges), the gummy state of the epoxy resin will be restored and cannot be removed! Please advise, please advise!!

Summary. 1) Compounds that can introduce epoxy groups, mainly epichlorohydrin, methyl epichlorohydrin, and epoxy propanol.

2) Compounds that can form epoxy groups, mainly peroxide, acetic acid peroxide, hydrogen peroxide.

3) Compounds or prepolymers containing two or more active hydrogen, including polyols, polyphenols, polycarboxylic acids, polyamines, etc.

4) Compounds or prepolymers containing two or more unsaturated double bonds, mainly butadiene, acrolein, prepolymers and oils of pentadiene, isoprene.

What raw materials are used in epoxy resins?

Kiss! Please wait a while and Little Lemon will check it for you!

Kiss! The following raw materials are used in epoxy resins!

1) Compounds that can introduce epoxy groups, mainly epichlorohydrin, methyl epichlorohydrin, and epoxy propanol. (2) Compounds that can form epoxy groups, mainly reedin oxide, acetic acid peroxide, and hydrogen peroxide. (3) Compounds or prepolymers containing two or more active hydrogen, including polyols, polyphenols, polycarboxylic acids, polyamines, etc.

4) Compounded prepolymers or prepolymers containing two or more unsaturated double bonds, mainly butadiene, acrolein, prepolymers and oils of pentadiene, isoprene.

Kiss! The main components of epoxy resin chemical composition are: phenolic resin; Phenolic resin is a resin made of phenol and formaldehyde under the condition of polycondensation, neutralization and water washing under the condition of Hengqin catalyst, among which phenol and formaldehyde resin are the most important.

It is also the world's first synthetic polymer material that was completed and is still very important. Due to the different catalysts selected, they can be divided into two categories: thermosetting and thermoplastic. Phenolic resin has good acid resistance, free running energy, mechanical properties, and heat resistance, and is widely used in anti-corrosion engineering, adhesives, flame retardant materials, grinding wheel manufacturing and other industries.

Reaction injection molding.

Reaction Injection Moulding (RIM) is abbreviated. There is a chemical reaction in the molding process of an injection molding method, the raw material used in this method is not a polymer, but two or more liquid monomers or prepolymers, which are added to the mixing head in a certain proportion, mixed evenly under pressure, immediately injected into the closed mold, polymerized and solidified in the mold, and shaped into a finished product. Because the raw material used is liquid, the mold cavity can be quickly filled with a small pressure, so the clamping force and mold cost are reduced, and it is especially suitable for the production of large-area parts.

Epoxy resin molding.

Reaction injection molding was developed in the late 70s of the 20th century.

In the United States, the reaction injection molding method is used to make polyurethane semi-rigid plastic automobile bumpers, fenders, instrument panels, etc. from isocyanate and polyether. This method has the advantages of low equipment investment and operation cost, beautiful appearance, good impact resistance, and great design flexibility, and developed rapidly in the 80s. Reaction injection molding can also be used to produce foams with a rigid polyurethane structure.

In order to further improve the rigidity and strength of the product, when various reinforcing materials are mixed into the raw materials, it is called reinforcing reaction injection molding, and the product can be used as the outer panel of the automobile body and the engine cover. The varieties developed include epoxy resins, dicyclopentadiene polymers, silicone resins and interpenetrating polymer networks.

Injection molding process.

Reaction injection molding requires that the components react quickly and quickly once they are mixed, and that the material can be cured to the point where it can be released. As a result, specialized raw materials and formulations are used, and sometimes the product is heat-treated to improve its properties. The key to the molding equipment is the structural design of the mixing head, the accurate metering and conveying of each component.

In addition, temperature control of raw material storage tanks and molds is also very important.

Hope this answer is helpful to you.

There are roughly the following types of preparation methods for epoxy adhesives:

1) active hydride reacts with epichlorohydrin;

2) liquid phase oxidation of double bonds with hydrogen peroxide or peracid (e.g., peracetic acid);

3) air oxidation of double-bonded compounds; 4) Miscellaneous.