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BIO EPOXYHARS TRANSPARANT LE 2025

BIO EPOXYHARS TRANSPARANT LE 2025

Green epoxy resin LE2025 is a clear epoxy resin.

High bio-based content

Green epoxy resin LE 2025 is out coming from the latest innovations in bio-based chemistry.
Green epoxy resin LE 2025 is produce with a high content of carbon from plant origin.

The bio-based Carbon content of our system is certified by an independent laboratory using Carbon 14 measurements (ASTM D6866 or XP CEN/TS 16640)

This is a significant technological advance on the following points:

Clarity, color, performances and guarantees of industrial tonnages availability.


Green epoxy resin LE 2025
is an epoxy resin which has up to 56% of its molecular structure coming from plant origin. This percentage is function of the carbon origin contained in the epoxy molecule. The final rate of the mix bio-based carbon content will depend on the hardener choice.
Green epoxy resin LE 2025 is a very clear and colorless mix.

 Applications:
- Hand lamination
- RTM processes (infusion, injection…)
- Filament winding
- Hot or cold press
- Casting
- Bonding

RESIN:

Aspect   / colour

 

Clear   liquid
 
 

Storage  

2   years, crystallisation free
 
 

Viscosity   (mPa.s)
  @ 15 °C

@ 20 °C  

@ 25 °C  

@ 30 °C  

 

2875 +   575

1600 +   300

950 +   190

588 +   112
 
 

% bio-based   Carbon content

50 - 58  
 
 

Color   (Gardner)

2 max
 
 

Density   @ 20 °C

1,1980 + 0,0050
 
 

Refractive index @ 25 °C

1,5350 + 0,0020

 

HARDENER:

Aspect / colour

Liquid / clear
 
 

Typical reactivity

Slow
 
 

Viscosity   (mPa.s)

@ 15 °C  

@ 20 °C  

@ 25 °C  

@ 30 °C

 

80 + 15

60 + 15

45 + 10

32 + 6
 
 

% bio-based carbon content
 
 

0

Color (Gardner)

2 max
 
 

Density @ 20 °C

0,9600 + 0,005
 
 
 
 

 MIXED RESIN/HARDENER:

Weight ratio

100 / 36

 

 

 

 

Volume ratio

100 / 45

 

 

 

 

 

Initial   mix viscosity (mPa.s)

PP 50   mm – 10 s-1

@ 20   °C      700

@ 30   °C      400

 

 

 

 

 

 

 

 

 

 

 

 

  

 

 

 

 

 

Mechanical   properties on pure casted resin

 

 

 

 

 

  

 

Curing   cycle

 24 h @ 23 °C +

24 h @ 40 °C

24 h @ 23 °C +

16 h @ 60 °C

24 h @ 23 °C +

8 h @ 80 °C

Tension

Modulus of elasticity

N/mm2

3 290

3 160

2 980

Maximum resistance

N/mm2

71

71

68

Resistance at break

N/mm2

60

67

66

Elongation at max load

%

3,6

4,3

5

Elongation at break

%

5,2

5,4

6,4

Flexion

Modulus of elasticity

N/mm2

3 360

3 230

3 010

Maximum resistance

N/mm2

113

118

111

Resistance at break

91

101

93

Elongation at max. load

%

4,4

5,3

6

Elongation at break

%

6,5

8,1

9,8

Shear

Resistance at break

N/mm2

46

53

47

Compression

Maximum resistance

N/mm2

100

100

96

Elongation at max. load

%

12,8

13,2

15,3

Charpy impact strength

Resilience

kJ/m2

36

32

52

Glass transition

Tg1 onset

°C

67

79

78

Tg1 onset maximum

°C

85

Measures undertaken according to the following norms:

Tests carried out on samples of pure cast resin, without prior degassing, between steel plates.

Tension: ISO 527 - 2

Flexion: ISO 178

Charpy impact strength: NF T 51-035

Shear Strength: ASTM D 732 - 93

Compression: ISO 604

Water absorption: Internal. Polymerization according to cycle, machining, weighing, time spent in distilled water at 70 °C / 48 hours, weighing 1 hour after emerging,

Glass transition DSC: ISO 11357-2: 1999 -5°C to 180 °C at 20 °C/min under nitrogen gas
TG1 or Onset: 1st passage
TG1 maximum or Onset: 2nd passage

Glass transition DTMA: Temperature ramp 0 °C to 180 °C @ 2 °C/min
ISO 11357-1 - TG onset G’
ASTM D4065 - TG peak G’’

 

Physical tests according standard:
Gardner color: NF EN ISO 4630 Visual method

Refractive index: NF ISO 280

Viscosity: NF EN ISO 3219 Rheometer 50 mm, shear 10 s-1

Density: NF EN ISO 2811-1 Pycnometer

Density solid NF EN ISO 845

Gel time: Cross G’ G’’ Rheometer CP50 - Shear rate 10 s-1

Green Carbone content: ASTM D6866 or XP CEN/TS 16640 Avril 2014

TA: Ambient temperature

Reactivity – 1 mm film viscosity evolution