双酚A生产环氧树脂

高性能胶黏剂和复合材料基体

Materials Science & Polymers Global Industrial Scale $10 billion

概述

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.

化学工艺

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

原材料

  • 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)

最终产品

  • 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.

安全注意事项

最新创新

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.

生产规模

4500000

吨/年

$10 billion

市场价值

更多 Materials Science & Polymers

凯夫拉（聚对苯二甲酰对苯二胺）纤维生产

Commercial Production

玻璃纤维复合材料制造

Global Industrial Scale

直接法制备有机硅（PDMS）

Global Industrial Scale

硫磺交联橡胶硫化

Global Industrial Scale

缩聚法生产尼龙6,6

Global Industrial Scale

聚丙烯腈制碳纤维

Commercial Production

齐格勒-纳塔催化法合成聚乙烯

Global Industrial Scale

Frequently Asked Questions

What industry uses 双酚A生产环氧树脂?
双酚A生产环氧树脂 is used in the materials science & polymers sector at global industrial scale scale.
What process is involved in 双酚A生产环氧树脂?
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 双酚A生产环氧树脂?
双酚A生产环氧树脂 has a market value of $10 billion and annual production of 4,500,000 tons.
What is the environmental impact of 双酚A生产环氧树脂?
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 双酚A生产环氧树脂?
The main raw materials include: Bisphenol A (BPA, C15H16O2), Epichlorohydrin (ECH, C3H5ClO), Sodium hydroxide (NaOH).