Technical Indexes of Liquid Resin

Item

Unit

Value

Standard

Appearance

Transparent Sticky Thick Liquid

Visual

Chroma（Pt-Co）

≤30

GB7193.7-92

Acid Value

mgKOH/g

16-21

GB2895-82

Viscosity(25°C)

mPa.S

800-1200

GB7193.1-87

Gel Time

min

3-6

GB7193.6-87

Non-Volatile

%

65-70

GB7193.3-87

Thermal Stability(80°C)

h

≥24

GB7193.5-87

Note: Gel Time is 25°C; in air bath, 0.5 ml cobalt isocaprylate solution and 0.5 ml MEKP solution were added into 50 g resin.

Performance Indexes of Resin Casting Substance

Item

Unit

Value

Standard

Barcol hardness≥

Barcol

30

GB3854-1983

Tensile strength ≥

MPa

60

GB2568-1995

Tensile modulus ≥

MPa

3000

GB2568-1995

Elongation at break≥

%

5.0

GB2568-1995

Flexural strength≥

MPa

80

GB2570-1995

Flexural modulus≥

MPa

3000

GB2570-1995

Impact strength≥

KJ/m2

10

GB2571-1995

H.D.T ≥

°C

65

GB1634-1989

Note: Environmental Temperature for Experiment: 23±2°C; relative humidity: 50±5%