Latest Update: June 2006
1. Molecular Structure:
2. Main Applications:
3. Properties and technical information
In addition to the general crosslinking performance of epoxy resin, EOCN features exceptional properties compared to ordinary epoxy resins. With the same softening point of 65-75oC, the epoxy value of EOCN reaches 0.48-0.50eq/100g, while only 0.20eq/100g for the ordinary one. This fact means that its crosslinking points are 2.5 times more than usual, and its highly-crosslinked net with three-dimensional structure would be easily forming. With the phenolic framework additionally, the solidified products have excellent properties of heat stability, mechanical strength, electric insulation, waterproofness, low moisture absorption, resistance to chemicals, and higher glass transfer temperature Tg.
Even EOCN's softening point varies with the change of polymerization degree, its epoxy value doesn't change much, and the melting viscosity (150oC ICI ) remains low because the epoxy group bonds to the phenolic-hydroxy group in molecular chain. This characteristics give the resin a good processability and processing stability, and its filler filling-ratio could exceeds 80%, which leads to much lower linear expansion, much lower shrinkage, and much lower moisture adsorption of the solidified products.
Solidify the EOCN in the similar way as Bisphenol A epoxy resin , using different crosslinking agent according to different applications and requirements. Its typical application is to produce epoxy compound for molding. Following is the information on EOCN compounding (for reference):
General formulation ( by weight):
Weigh the ingredients in proportion, mix them well, then use mill or twin-screw extruder to heat and mix it into melted even mixture. After cooling, it is smashed and preformed into cake-like shape for packaging and storage.
oC for 30-60s and 180~190oC for 0.5-2.0 hour s
6. Package, storage and transportation
(1) 25kg net packed in a paper bag with PE bag liner.
(2) Store it in a cool, well-ventilated and dry place. Keep away from heat and fire. Transport as non-hazardous chemicals. Avoid package damage and contamination caused by foreign materials during transportation.
7. Precautions for safe handling
8. Shelf-time: 1 year since production.
9. Notice for liability:
Because conditions of product using are outside our control and vary widely, a user must evaluate and determine whether our product will be suitable for users intended application before using it. We make no warranties, and express no imply, and assume no liability in connection with any use of this information.
Research Institute of Chemical Industry (Int'l-trade