Epoxy Resin

Introduction, types, raw material, reaction mechanism, manufacturing process, flow sheet of production process, properties, applications, industries in India, commercial name

1. 04-11-2016 MEE411 EPOXY RESINS EPOXY RESIN Muskan Rathi (14BMD0011)

2. 04-11-2016 MEE411 EPOXY RESINS 2 INTRODUCTION EPOXY RESINS- The resins which have at least two epoxy groups per molecule are known as epoxy resins EPOXIDE- An epoxide is a cyclic ether with a 3 atom ring. ETHER – R-O-R’ eg . CH₃-CH₂-O-CH₂-CH₃

3. 04-11-2016 MEE411 EPOXY RESINS 3 types Bisphenol A epoxy resin Bisphenol F epoxy resin Novolac epoxy resin Aliphatic epoxy resin Glycidylamine epoxy resin

4. 04-11-2016 MEE411 EPOXY RESINS 4 RAW MATERIAL Bisphenol -A Epichlorohydrine Sodium hydroxide Methylisobutylketone The raw materials for epoxy resin production are largely petroleum derived, although some plant derived sources are now becoming commercially available (e.g. plant derived glycerol is used to make epichlorohydrin )

5. 04-11-2016 MEE411 EPOXY RESINS 5 reaction mechanism Epoxy prepolymer formed from bisphenol –A and epichlorohydrin by step growth polymerisation STEP I --- Formation of low molecular weight prepolymer called diepoxy

6. 04-11-2016 MEE411 EPOXY RESINS 6 The first thing that happens is that the NaOH does a little swap with the bisphenol A, to give the bisphenol A sodium salt:

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8. 04-11-2016 MEE411 EPOXY RESINS 8 STEP 2 --- Curing the Diepoxy with a Diamine Epoxide + RNHCH₂--CH-- OH RNCH₂--CH-- OH CH₂--CH--OH

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14. 04-11-2016 MEE411 EPOXY RESINS 14 manufacturing process Machinery and equipment Suspension Polymerisation is used Machinery and Equipments Required Storage tank Water tank Recovery Tank Salt solution Tank Reactor Evaporator Condenser Filter Pump Vacuum pump Boiler

15. 04-11-2016 MEE411 EPOXY RESINS 15 Flow Sheet of Epoxy Resin Production Process

16. 04-11-2016 MEE411 EPOXY RESINS 16 First Stage R eaction (exothermic) -- Epoxy radical is separated from epichlorohydrine to be attached to hydroxyl radical, thus producing chlorohydrine ether . S econd Stage Reaction - the produced chlorohydrine ether causes a dechloration reaction to occur in the presence of NaOH , producing a terminal epoxy radical . The ether of bisphenol -A produced as a result continues to react with bisphenol -A and epichlorhydrine and gradually forms a high polymer. On completion of polymerization, the polymer is transferred through storage tank to the epichlorohydrine separation evaporator, where epichlorohydrine is separated under vacuum.

17. 04-11-2016 MEE411 EPOXY RESINS 17 PROPERTIES High thermo stability High abrasion resistance Acceptable drying time Low shrinkage Excellent weather/ chemical resistance Excellent adhesive strength

18. 04-11-2016 MEE411 EPOXY RESINS 18 APPLICATIONS Paints and coatings Adhesives Industrial tooling and composites Electrical systems and electronics Petroleum & petrochemical Consumer and marine applications Aerospace applications Biology Art

19. 04-11-2016 MEE411 EPOXY RESINS 19 INDUSTRIES IN INDIA Swastik Interchem Private Limited – New Delhi Noble Corporation – Mumbai Paladin Paints and Chemicals Private Limited – Mumbai Umiya Group of Companies – Vapi Synpol Products Private Limited – Ahmedabad Fibrex Construction Chemicals Private limited – Faridabad

20. 04-11-2016 MEE411 EPOXY RESINS 20 COMMERCIAL NAME i . Liquid Glass - Heritage ii. Lapox Epoxy Resin - Duratite

21. 04-11-2016 MEE411 EPOXY RESINS 21 COMMERCIAL NAME i . Araldite Epoxy Barrier Coat ii. Resin & Hardener ( High Gloss Epoxy Resin Clear Coat) - Haksons

22. 04-11-2016 MEE411 EPOXY RESINS 22 https:// en.wikipedia.org/wiki/Epoxy#History https:// en.wikipedia.org/wiki/Epoxide http :// pslc.ws/macrog/eposyn.htm http :// processflowsheets.blogspot.in/2011/05/epoxy-resin-manufacturing-process.html Fundamentals of Polymers by Niranjan Karak references