Produção de Resina Epóxi a partir de Bisfenol A

O adesivo de alto desempenho e material matricial para compósitos

Materials Science & Polymers Global Industrial Scale $10 billion

Visão geral

Epoxy resins are produced by the reaction of bisphenol A (BPA) with epichlorohydrin (ECH) to form diglycidyl ether of bisphenol A (DGEBA), the most widely used epoxy resin worldwide. Epoxies are valued for their exceptional adhesion to diverse substrates, chemical resistance, and mechanical properties after curing with amine or anhydride hardeners. Applications include aerospace composites, protective coatings, electronic encapsulation, wind turbine blades, and structural adhesives.

Processo químico

Bisphenol A reacts with excess epichlorohydrin (ECH:BPA ratio 2-10:1) in the presence of NaOH at 40-70 degrees C. The NaOH dehydrohalogenates the chlorohydrin intermediate to form epoxide groups, generating NaCl as byproduct. The crude resin is washed to remove salt and unreacted ECH, then molecular weight is controlled by the BPA:ECH ratio.

HO-C6H4-C(CH3)2-C6H4-OH + 2ClCH2-CHCH2O ->[NaOH] CH2(O)CHCH2-O-C6H4-C(CH3)2-C6H4-O-CH2CH(O)CH2 + 2NaCl + 2H2O

Matérias-primas

  • Bisphenol A (BPA, C15H16O2) — Condensation of phenol with acetone (Dihydroxy monomer)
  • Epichlorohydrin (ECH, C3H5ClO) — Allyl chloride route or glycerin-based Epicerol process (Epoxy group donor)
  • Sodium hydroxide (NaOH) — Chlor-alkali process (Dehydrohalogenation agent)

Produtos finais

  • DGEBA epoxy resin — Adhesives, coatings, composites, electronic encapsulation (Epoxide equivalent weight 170-3,500 g/eq depending on grade)
<path stroke-linecap="round" stroke-linejoin="round" d="M12 9v3.75m-9.303 3.376c-.866 1.5.217 3.374 1.948 3.374h14.71c1.73 0 2.813-1.874 1.948-3.374L13.949 3.378c-.866-1.5-3.032-1.5-3.898 0L2.697 16.126zM12 15.75h.007v.008H12v-.008z" />

Environmental Impact

BPA is an endocrine disruptor, and its use in food-contact applications is increasingly restricted. Epichlorohydrin is toxic and carcinogenic. Cured epoxy resins are thermosets and difficult to recycle conventionally. Bio-based alternatives from plant oils and vanillin are under development.

Considerações de segurança

Inovações recentes

Bio-based epoxy from epoxidized soybean oil and vanillin-derived monomers are entering the market.
Vitrimers (dynamic covalent network epoxies) enable recyclability of thermoset epoxies through bond exchange reactions at elevated temperatures.

Escala de produção

4500000

toneladas/ano

$10 billion

valor de mercado

Mais em Materials Science & Polymers

Fabricação de Compósitos de Fibra de Vidro

Global Industrial Scale

Fabricação de Fibra de Carbono a partir de Poliacrilonitrila

Commercial Production

Fabricação de Silicone (PDMS) pelo Processo Direto

Global Industrial Scale

Produção de Fibra Kevlar (Poli-p-fenileno Tereftalamida)

Commercial Production

Produção de Nylon 6,6 via Policondensação

Global Industrial Scale

Síntese de Polietileno via Catálise Ziegler-Natta

Global Industrial Scale

Vulcanização da Borracha com Reticulação de Enxofre

Global Industrial Scale

Frequently Asked Questions

What industry uses Produção de Resina Epóxi a partir de Bisfenol A?
Produção de Resina Epóxi a partir de Bisfenol A is used in the materials science & polymers sector at global industrial scale scale.
What process is involved in Produção de Resina Epóxi a partir de Bisfenol A?
Bisphenol A reacts with excess epichlorohydrin (ECH:BPA ratio 2-10:1) in the presence of NaOH at 40-70 degrees C. The NaOH dehydrohalogenates the chlorohydrin intermediate to form epoxide groups, generating NaCl as byproduct. The crude resin is washed to remove salt and unreacted ECH, then molecular
What is the economic significance of Produção de Resina Epóxi a partir de Bisfenol A?
Produção de Resina Epóxi a partir de Bisfenol A has a market value of $10 billion and annual production of 4,500,000 tons.
What is the environmental impact of Produção de Resina Epóxi a partir de Bisfenol A?
BPA is an endocrine disruptor, and its use in food-contact applications is increasingly restricted. Epichlorohydrin is toxic and carcinogenic. Cured epoxy resins are thermosets and difficult to recycle conventionally. Bio-based alternatives from plant oils and vanillin are under development.
What raw materials are used in Produção de Resina Epóxi a partir de Bisfenol A?
The main raw materials include: Bisphenol A (BPA, C15H16O2), Epichlorohydrin (ECH, C3H5ClO), Sodium hydroxide (NaOH).