Technical Bulletin ACCELERATOR 399
Epoxy Curing Promoter for u with JEFFAMINE ® Curing Agents
Accelerator 399 is a superior epoxy curing promoter designed for u with amine hardeners. The product was
developed specifically for u with JEFFAMINE ® curing agents, but it is compatible with most amines and may be ud in most amine-cured epoxy systems.
SALES SPECIFICATIONS
Property Specifications
Test Method* Appearance Clear, pale yellow, slightly viscous liquid ST-30.1
free of suspended matter Color, Pt-Co 200 max. ST-30.12 Water, wt%
0.40 max.
ST-31.53, 6
*Methods of Test are available from Huntsman Corporation upon request.
ADDITIONAL INFORMATION
Regulatory Information DOT Classification Not regulated for drums Regulated in containers in excess of 119 gal. (Bulk): Combustible liquid, n.o.s. (Piperazine) TDG Classification Not regulated HMIS Code 3-2-0 WHMIS Classification D2B: Irritant B3: Combustible liquid Chemical Control Laws Australia, AICS Listed Canada, DSL Listed Europe, EINECS/ELINCS Listed
Japan, METI Listed
United States, TSCA Listed
Typical Physical Properties AHEW (Amine hydrogen equivalent wt.) 145
Amine equivalent weight 126 Density, g/cc, 77°C
1.089 Flash point, PMCC, °C (°F) 90 (194)
pH
12.3 Pour Point, °F 5 Viscosity, cSt, 25°C (77°F)
810
AVAILABILITY
Accelerator 399 is available in 55-gallon drums of 500 pounds net weight and in 5-gallon pails. Samples are available through any Huntsman Corporation sales office.
USE IN EPOXY FORMULATIONS
Accelerator 399 is typically ud at levels of 2 to 20 parts per 100 parts of epoxy resin, depending upon which amine curing agents is ud and the degree of cure acceleration desired.
The accelerator is blended with the curing agent before u. Mixtures with JEFFAMINE hardeners are stable indefinitely, even at temperatures as low as 0°C. It should be emphasized that formulations in which high amounts of Accelerator 399 (10 to 20 phr) are ud may blush and form a surface haze on curing under conditions of high humidity (>75% R. H.). Under conditions of normal humidity (~50% R.H.), surface blushing should not appear.
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EFFECT ON CURE RATES AND PROPERTIES OF CURED PRODUCTS
Tables I through VIII show properties obtained by curing an epoxy resin with JEFFAMINE D-230, JEFFAMINE D-400, JEFFAMINE T-403, or blends of JEFFAMINE D-400 • JEFFAMINE D-2000 amines, either alone or in combination with Accelerator 399. Tables I, III, V, and VII indicate exothermic and coating properties of a number of formulations
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that the given data be ud as a guide to establish general limitations of various reactive epoxy-JEFFAMINE product combinations.
All formulations ud a liquid bisphenol A-bad epoxy resin of equivalent weight 185 to 192. Compensation for the AHEW
of the accelerator was not done for the formulations. As with amines, Accelerator 399 is best maintained under dry nitrogen.
SAFETY AND TOXICITY
Accelerator 399 should be handled with caution as it has the potential to cau vere eye irritation. Chemical-type goggles
must be worn when handling this product. Should accidental contact with the eyes occur, flush thoro
ughly with water for at
least 15 minutes and get immediate medical attention.
Accelerator 399 is moderately irritating to the skin and protective clothing, including impervious gloves, is recommended
when working with the product. This product is rated slightly toxic by swallowing, bad on a single oral do LD50 value in
the rat of 3.3 g/kg. The Draize score for skin irritation in the rabbit is 3.25/8.0 and the Draize score for eye irritation in the
rabbit is 41.5/110.0.
Accelerator 399 did not cau skin nsitization when tested in the guinea pig. However, certain individuals may be nsitive
to some of the components of this product and urs should be alert to this possibility.自己的英文
In normal operations, the vapor pressure of this material is sufficiently low that no significant concentrations would be prent
in the workplace atmosphere. However, supplied air respiratory protection is recommended for cleaning up large spills or for
entry into confined spaces. For further information, request the Material Safety Data Sheet.
Table I
JEFFAMINE® D-230 AMINE/ACCELERATOR 399 CURING DATA I
EXOTHERMIC AND CLEAR COATING PROPERTIES
Formulation, pbw A B C D
生日快乐Epoxy resin (EEW 188) 100 100 100 100 JEFFAMINE® D-230 amine 32 32 32 32 Accelerator 399 — 2 5 10
Exothermic data
Brookfield viscosity (approx.), cP, 25°C 600 700 700 700
Gel time, minutes (200-g mass) 2801 193165 25
Peak exothermic temperature, °C 64 92 191 213
Time to peak temperatures, minutes 396 244 72 30
Coating properties, 6-mil draw down
Drying time, hr
Set-to-touch 8.9 8.1 7.6 5.0
Surface-dry 12.6 11.0 9.9 8.5 Through-dry 16.2 14.9 13.6 12.5
Pencil hardness
Cure: 24 hr ~25°C B HB HB HB
24 hr ~25°C + 1 hr 110°C H H H H
48 hr ~25°C H H H H
7 days ~25°C H H H H
Rever impact, in-lb to fail
Cure: 24 hr ~25°C <4 <4 <4 16
24 hr ~25°C + 1 hr 110°C >160 >160 >160 >160
48 hr ~25°C <4 <4 <4 <4
7 days ~25°C <4 <4 <4 6
Direct impact, in-lb to fail
Cure: 24 hr ~25°C 14 28 22 30
24 hr ~25°C + 1 hr 110°C >160 >160 >160 >160
48 hr ~25°C 16 20 20 28
7 days ~25°C 24 40 36 30
Gloss, 60°, 7 days ~25°C 108 110 107 106
Table II
JEFFAMINE D-230 AMINE/ACCELERATOR 399 CURING DATA II
PHYSICAL PROPERTIES OF UNFILLED CASTINGS
AMBIENT AND ELEVATED TEMPERATURE CURES
Formulation, pbw A B C D Epoxy resin (EEW 188) 100 100 100 100 JEFFAMINE® D-230 amine 32 32 32 32 Accelerator 399 — 2 5 10 Properties of cured 1/8-inch castings,
cure: 7 days ~25°C
Shore D hardness, 0-10 c 89-87 84-82 84-81 83-79 Elongation at break, % 2 2 2 2
HDT, °C, 264 psi 46 46 45 47 Izod impact strength, ft-lb/in 0.23 0.28 0.33 0.32 Tensile strength, psi 8,750 9,500 9,900 10,200 Flexural strength, psi l0,800 13,900 13,300 15,500 Flexural modu
lus, psi 477,000 560,000 530,000 534,000 % wt. gain, 24-hr water boil 2.4 2.5 3.3 2.7 3-hr acetone boil 30.8 32.0 26.4 16.4 Compressive strength1, psi, at yield 12,500 13,400 13,300 13,100
at failure 34,000 27,000 27,000 25,900 Properties of cured 1/8-inch castings,
cure: 2 hr 80°C + 3 hr 125°C
Shore D hardness, 0-10 c 78-75 76-73 76-73 76-73 Elongation at break, % 8 9 7 8
HDT, °C, 264 psi 80 76 69 58 Izod impact strength, ft-lb/in 1.1 1.4 1.4 2.3 Tensile strength, psi 9,400 9,900 10,200 9,600 Flexural strength, psi 14,900 16,000 17,200 16,500 Flexural modulus, psi 429,000 467,000 491,000 488,000 % wt. gain, 24-hr water boil 2.4 2.6 3.2 3.2 3-hr acetone boil 6.9 6.2 6.7 10.8 Compressive strength1, psi, at yield — — — 12,200
at failure 46,700 47,400 42,000 40,000 11-inch tall cylinders, 1/2-inch diameter
Table III
JEFFAMINE® D-400 AMINE/ACCELERATOR 399 CURING DATA I
EXOTHERMIC AND CLEAR COATING PROPERTIES
Formulation, pbw A B C D Epoxy resin (EEW 188) 100 100 100 100 JEFFAMINE® D-400 amine 55 55 55 55 Accelerator 399 — 2 5 10 Exothermic data
Brookfield viscosity (approx.), cP, 25°C 600 600 500 600 Gel time, minutes (200-g mass) 48012871136154 Peak exothermic temperature, °C 35 36 67 140 Time to peak temperature, minutes ~700 ~430 182 68 Coating properties, 6-mil draw down
Drying time, hr
Set-to-touch 15.0 12.0 11.0 9.2 Surface-dry 18.7 14.8 12.5 10.5 Through-dry 24.8 21.0 16.4 14.5 Pencil hardness
Cure: 24 hr ~25°C 2 <3B <3B <3B
24 hr ~25°C + 1 hr 110°C F F F F
48 hr ~25°C 2B B B-HB B-HB
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7 days ~25°C F F F F Rever impact, in-lb to fail
Cure: 24 hr ~25°C 2>160 >160 >160
24 hr ~25°C + 1 hr 110°C >160 >160 >160 >160
48 hr ~25°C >160 >160 >160 >160
7 days ~25°C 20 140 150 >160 Direct impact, in-lb to fail
Cure: 24 hr ~25°C 2>160 >160 >160
24 hr ~25°C + 1 hr 110°C >160 >160 >160 >160
48 hr ~25°C >160 >160 >160 >160
7 days ~25°C >160 >160 >160 >160 Gloss, 60°, 7 days ~25°C 104 104 105 109 Crosshatch adhesion, %, 7 days ~25°C 100 100 100 100 1No definite gel; time to reach 10,000 cP
2Coating too tacky to test
Table IV
JEFFAMINE® D-400 AMINE/ACCELERATOR 399 CURING DATA II
PHYSICAL PROPERTIES OF UNFILLED CASTINGS
AMBIENT AND ELEVATED TEMPERATURE CURES
Formulation, pbw A B C D Epoxy resin (EEW 188) 100 100 100 100 JEFFAMINE® D-400 amine 55 55 55 55 Accelerator 399 — 2 5 10 Properties of cured 1/8-inch castings,
cure: 7 days 25°C
Shore D hardness, 0-10 c 75-71 76-72 79-75 79-74 Elongation at break, % 65 65 53 65 HDT, °C, 264 psi 28 32 34 36 Izod impact strength, ft-lb/in 0.90 0.88 1.0 2.1 Tensile strength, psi 5,200 5,800 6,400 6,150 Flexural strength, psi 8,750 9,500 8,600 8,700 Flexural modulus, psi 310,000 330,000 310,000 286,000 % wt. gain, 24-hr water boil 2.7 2.7 4.4 2.3 3-hr acetone boil 28.1 23.7 22.1 19.7 Compressive strength1, psi, at yield 6,100 7,200 8,500 8,300
at failure 34,000 40,000 41,000 44,000 Properties of cured 1/8-inch castings,
cure: 2 hr 80°C + 3 hr 125°C
云母屏风烛影深Shore D hardness, 0-10 c 80-75 80-77 81-76 79-74 Elongation at break, % 6.5 7.0 6.0 10.脖子疼痛是什么原因
猴屁股0 HDT, °C, 264 psi 43 45 45 38 Izod impact strength, ft-lb/in 0.17 0.15 0.12 0.18 Tensile strength, psi 7,800 7,300 7,300 7,000 Flexural strength, psi 12,900 13,400 13,800 10,500 Flexural modulus, psi 460,000 500,000 460,000 350,000 % wt. gain, 24-hr water boil 2.8 2.7 3.4 0.6 3-hr acetone boil 24.2 24.0 17.4 21.8 Compressive strength1, psi, at yield 8,200 8,400 8,800 8,000
at failure 42,000 41,000 47,000 41,000 11-inch tall cylinders, 1/2-inch diameter
