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Long pot life modification of PN-23

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Bisphenol F epoxy resin formulations

PN-31 and PN-40 is more stable in bisphenol F epoxy resin formulations than PN-23.
Especially PN-40 have very long pot life even at elevated temperature.

 
Run No. PN-31 PN-40 PN-23 PN-H PN-31J PN-40J
Average particle size (micron)  10-12  11-13 2-3 
Liquid bisphenol F epoxy resin* 100 100 100 100 100 100
“AJICURE” 20 20 20 20 20 20
Aerosil #200 2 2 2 2 1 2
Gel time (min) 80deg.C 13.6 23.5 13.1 13.7 12.1 10.5
100deg.C 3.9 4.6 4 4.1 4.8 4
120deg.C 2.1 2.3 2.1 2.1 2 2.3
150deg.C 1.3 1.5 1.3 1.4 1.5 1.5
Tg(deg.C) 80deg.C-60min. 105 not cure 105 105 105 105
120deg.C-30min. 135 130 135 135 130 130
Viscosity increase ratio** 40deg.C-4w 2.2 1.2 24.1 2  2.6*2 2.4
60deg.C-1day cure 1.5 cure cure cure 12.8

* Liquid bisphenol F epoxy resin having an epoxy equivalent weight of 165
** Viscosity increase ratio : viscosity / initial viscosity 1)Viscosity increase ration for 40deg.C-2w

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Bisphenol A epoxy resin formulations

PN-31 and PN-40 is much more stable than PN-23 in bisphenol A epoxy resin formulations at elevated temperature(60-70deg.C)
Especially PN-40 or PN-40J has so small viscosity increase that can be applied for heating process.

 
Run No. PN-31 PN-40 PN-23 PN-H PN-23J PN-31J PN-40J
Average particle size (micron)  10-12  11-13  2-3 
Liquid bisphenol A epoxy resin* 100 100 100 100 100 100 100
“AJICURE” 20 20 20 20 20 20 20
Aerosil #200 1 1 1 1 1 1 1
Gel time (min) 80deg.C >30 >30 19.8 20 9.4 14.8 >30
100deg.C 4.6 5.5 4.2 4.9 3.4 4.6 4.1
120deg.C 2.3 2.7 2.2 2.4 2.2 2.5 2.4
150deg.C 1.2 1.4 1.2 1.4 1.4 1.4 1.4
Tg(deg.C) 100deg.C-30min. 120 53 125 120 ND*2 ND 120
120deg.C-30min. 140 135 135 135 ND ND 140
Viscosity increase ratio** 40deg.C-4w 1.2 1.1 1.5 1.1 4 3 2.2
60deg.C-1day 2.1 1.2 6.6 2 no data no data 4
70deg.C-3hr 1.8 1.2 cure cure cure no data 1.7
70deg.C-8hr 5.5 1.3 cure cure cure no data 3.6

* Liquid bisphenol A epoxy resin having an epoxy equivalent weight of 190
** Viscosity increase ratio : viscosity / initial viscosity

Technical data presented in this document are typical experimental values and do not signify any of the products’ specifications. The data may be revised without prior notice.

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The inquiry about this product
The Ajinomoto fine-techno are a company which bears the core of the fine-chemicals enterprise of Ajinomoto groups including insulating material ABF series.
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