Pellets Thermo Setting Plastic , Reinforced Thermosetting Resin Granular Oil Resistance

Product description

Phenol Formaldehyde Resin is novolac phenolic resin (two-step), is produced by condensing a molar excess of phenol to formaldehyde in the presence of an acid catalyst. This produces a thermoplastic resin. To cure this resin, a hardening agent is used, HMTA (or hexa). Under heat and pressure, it yields ammonia and formaldehyde as methylene groups to cure the resin, hence the term “two-step,” because of the two formaldehyde additions. A novolak phenolic resin has an infinite shelf life under normal storage conditions.Cured phenolic resin provides the rigidity necessary to maintain structural integrity and dimensional stability even under severe conditions.

Application

Phenol Formaldehyde Resin P1387 is recommended for Foundry Resin Coated Sands.Manufacturers using the shell molding process experience excellent dimensional accuracy, surface smoothness and high production rates using phenolic resin coated foundry sands. The shell molding process involves first creating mold cavities and cores by shaping sand coated with phenolic resin over a not metal form. Removed from the form and assembled, the mold and cores create the "negative" shape of the desired metal form. Hot metal is poured into the resin-sand mold and allowed to cool. Once hard, the excess resin-sand material is broken away revealing the metal part. Some recover the broken away sand for reuse. The careful selection of sand type, resin characteristics and coating method results in the desired mold and core properties such as strength, rigidity, flexibility, surface finish, part release and applicability to reuse.

Specification:

My company is mainly engaged in fine chemicals, chemical additives R & D, production and sales, year round production of products: 3 - amino-crotonic acid methyl ester, indole-3 - ethanol, dimerization of potassium, 2 - hydroxy quinoline -4 - carboxylic acid, phenylbutazone, metronidazole phosphorus disodium salt, N-benzyl hydroxylamine hydrochloride, development and production, advanced technology products and excellent quality. The company has successfully developed 10 varieties of the three series of metal surface treatment materials. Has been put into mass production of high purity nano-alumina, nano-titanium dioxide, long afterglow luminescent material, the technology is high-tech center in Hubei Province Organization experts as \"the world advanced level, the project was Hubei Province key project support. Existing a fine chemical of the company and the largest chemical production base, has a perfect quality assurance system and perfect quality control system; have multiple sets of high-pressure liquid chromatography, gas chromatography and ultraviolet spectrophotometer, and the effective analysis of product quality and monitoring. The company has passed ISO9001 quality system certification. Has the right to import and export, with the business license of dangerous goods, to apply for through the three categories are easy to produce drug procurement and management, the existing number of outstanding young scientific and technical personnel team, three senior engineers, technical backbone of six, a number of professional operation technician a scientific and strict management system and a dedication of the workforce, adhering to the \"honest labor and sincere service, and social integrity, innovation,\" the purpose of first-class products and quality services to meet market demand.