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Studies of Pre-treatment in varied Wood with High ......G=5 3 ΔE=1.2 G=75 ΔE=13.1 G=53 ΔE=2 G=83...

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Studies of Pre-treatment in varied Wood with High Performance Light Stabilizers Ray Sung Technical Service Asst. Manager, Specialty Chemicals BU, Everlight Chemical Industrial Corp.
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Page 1: Studies of Pre-treatment in varied Wood with High ......G=5 3 ΔE=1.2 G=75 ΔE=13.1 G=53 ΔE=2 G=83 After Test Before Test Fig.2-1 Delta difference color (ΔE) Fig.2-2 60o Gloss 0

Studies of Pre-treatment in varied Wood

with High Performance Light Stabilizers

Ray SungTechnical Service Asst. Manager,

Specialty Chemicals BU, Everlight Chemical Industrial Corp.

Page 2: Studies of Pre-treatment in varied Wood with High ......G=5 3 ΔE=1.2 G=75 ΔE=13.1 G=53 ΔE=2 G=83 After Test Before Test Fig.2-1 Delta difference color (ΔE) Fig.2-2 60o Gloss 0

2

Outline

• Why There Is A Need for Light Stabilizers

• Challenges in Waterborne System

• The Total Solution of Wood Coatings

Page 3: Studies of Pre-treatment in varied Wood with High ......G=5 3 ΔE=1.2 G=75 ΔE=13.1 G=53 ΔE=2 G=83 After Test Before Test Fig.2-1 Delta difference color (ΔE) Fig.2-2 60o Gloss 0

Why Use Light Stabilizer for Wood ?

• Wood is composed of lignin, cellulose and hemicelluloses.

• Waterborne clear coating is there to protect the wood substrate from

sunlight and moisture.

3

Wood Substrate

WB clear coat

WB wood coating light stabilizers

EV- AQ Series

Page 4: Studies of Pre-treatment in varied Wood with High ......G=5 3 ΔE=1.2 G=75 ΔE=13.1 G=53 ΔE=2 G=83 After Test Before Test Fig.2-1 Delta difference color (ΔE) Fig.2-2 60o Gloss 0

Enhanced Color & Gloss Retention of PU

Waterborne Clear Wood Coatings

4

Resin : Polyurethane(PU) Waterborne Clear Coating

Test Methods : ASTM G154-2 (Q-U-V with UVB-313 light bulb )

Exposure Time : 100 hours

ΔE=13.1G=5

3

ΔE=1.2

G=75ΔE=13.1

G=53

ΔE=2

G=83 After Test

Before Test

Fig.2-1 Delta difference color (ΔE) Fig.2-2 60o Gloss

0 2 4 6 8 10 12 14 16difference color (ΔE)

20 30 40 50 60 70 80 90 100

60o Gloss

Control

3%Eversorb AQ1

Fig.1 Delta difference color (ΔE) Fig.2 60° Gloss

3%Eversorb AQ3

13.1

2

1.2

90

53

83

75

Original

For color retention:

EV-AQ3 is better than EV-AQ1For gloss retention:

EV-AQ1 is better than EV-AQ3

Page 5: Studies of Pre-treatment in varied Wood with High ......G=5 3 ΔE=1.2 G=75 ΔE=13.1 G=53 ΔE=2 G=83 After Test Before Test Fig.2-1 Delta difference color (ΔE) Fig.2-2 60o Gloss 0

55

Eversorb® AQ Seriesfor Waterborne Coatings

Page 6: Studies of Pre-treatment in varied Wood with High ......G=5 3 ΔE=1.2 G=75 ΔE=13.1 G=53 ΔE=2 G=83 After Test Before Test Fig.2-1 Delta difference color (ΔE) Fig.2-2 60o Gloss 0

6

Page 7: Studies of Pre-treatment in varied Wood with High ......G=5 3 ΔE=1.2 G=75 ΔE=13.1 G=53 ΔE=2 G=83 After Test Before Test Fig.2-1 Delta difference color (ΔE) Fig.2-2 60o Gloss 0

Eversorb® AQ1 is Recommended

for Waterborne System

7

(5g UVA /100g Waterborne Resin)

filter

Conventional UVA could NOT be

dispersed in waterborne resin

(5g EV-AQ1 /100g Waterborne Resin)

filter

Liquid EV-AQ1 is easily dispersed in

waterborne resin

Page 8: Studies of Pre-treatment in varied Wood with High ......G=5 3 ΔE=1.2 G=75 ΔE=13.1 G=53 ΔE=2 G=83 After Test Before Test Fig.2-1 Delta difference color (ΔE) Fig.2-2 60o Gloss 0

Eversorb® AQ1 Keeps it Clear !

8

(10g EV-AQ1 /100g –DI Water)

Stirring

(10g UVA /100g –DI Water)

Stirring

Liquid EV-AQ1 specific for

high clarity waterborne formulation

Page 9: Studies of Pre-treatment in varied Wood with High ......G=5 3 ΔE=1.2 G=75 ΔE=13.1 G=53 ΔE=2 G=83 After Test Before Test Fig.2-1 Delta difference color (ΔE) Fig.2-2 60o Gloss 0

Why Use Light Stabilizer for Wood ?

• Wood is composed of lignin, cellulose and hemicelluloses.

• Lignin, when exposed to the sunlight, can easily be degraded.

9

Degradation of ligin

Wood Substrate

WB clear coat

WB wood coating light stabilizers

EV- AQ Series

Page 10: Studies of Pre-treatment in varied Wood with High ......G=5 3 ΔE=1.2 G=75 ΔE=13.1 G=53 ΔE=2 G=83 After Test Before Test Fig.2-1 Delta difference color (ΔE) Fig.2-2 60o Gloss 0

Degradation of Lignin

10

Page 11: Studies of Pre-treatment in varied Wood with High ......G=5 3 ΔE=1.2 G=75 ΔE=13.1 G=53 ΔE=2 G=83 After Test Before Test Fig.2-1 Delta difference color (ΔE) Fig.2-2 60o Gloss 0

Total solution for Lignin

11

Wood Pretreament

Eversorb® SB1Eversorb® AQ1

in Clear Coat

Page 12: Studies of Pre-treatment in varied Wood with High ......G=5 3 ΔE=1.2 G=75 ΔE=13.1 G=53 ΔE=2 G=83 After Test Before Test Fig.2-1 Delta difference color (ΔE) Fig.2-2 60o Gloss 0

Total Solution of Light Stabilizers

for Wood Products

12

Wood Substrate

WB clear coat

WB wood coating light stabilizers

EV- AQ Series

WB wood pretreatment

EV- SB Series

Surface coat

Page 13: Studies of Pre-treatment in varied Wood with High ......G=5 3 ΔE=1.2 G=75 ΔE=13.1 G=53 ΔE=2 G=83 After Test Before Test Fig.2-1 Delta difference color (ΔE) Fig.2-2 60o Gloss 0

Design of Experiment (DOE)

13

Page 14: Studies of Pre-treatment in varied Wood with High ......G=5 3 ΔE=1.2 G=75 ΔE=13.1 G=53 ΔE=2 G=83 After Test Before Test Fig.2-1 Delta difference color (ΔE) Fig.2-2 60o Gloss 0

Design of Experiment (DOE)

14

Page 15: Studies of Pre-treatment in varied Wood with High ......G=5 3 ΔE=1.2 G=75 ΔE=13.1 G=53 ΔE=2 G=83 After Test Before Test Fig.2-1 Delta difference color (ΔE) Fig.2-2 60o Gloss 0

Eversorb® SB1 for wood treatment

Effect of solvent and wood types

15

Cedar

Solvent Butyl Carbitol Isopropyl alcohol

Solubility parameter

((cal/cm^3)^1/2 )9.9 11.5

Southern beech African Teak Douglas fir Southern pine

hardwoods hardwoods softwoods softwoodshardwoods

Page 16: Studies of Pre-treatment in varied Wood with High ......G=5 3 ΔE=1.2 G=75 ΔE=13.1 G=53 ΔE=2 G=83 After Test Before Test Fig.2-1 Delta difference color (ΔE) Fig.2-2 60o Gloss 0

The effect of Southern pine coated with

acrylic resin after weathering for 300 hrs

16

(Prediction Profiler)

Page 17: Studies of Pre-treatment in varied Wood with High ......G=5 3 ΔE=1.2 G=75 ΔE=13.1 G=53 ΔE=2 G=83 After Test Before Test Fig.2-1 Delta difference color (ΔE) Fig.2-2 60o Gloss 0

Eversorb® SB1 for wood treatment- Effect of solvent and wood types

17

Douglas fir

Southern pine

Cedar

Page 18: Studies of Pre-treatment in varied Wood with High ......G=5 3 ΔE=1.2 G=75 ΔE=13.1 G=53 ΔE=2 G=83 After Test Before Test Fig.2-1 Delta difference color (ΔE) Fig.2-2 60o Gloss 0

Eversorb® SB1 for wood treatment- Effect of solvent and wood types

18

Southern beech

African Teak

Conclusions: IPA is a very good solvent;

More effect on treating soft woods.

Page 19: Studies of Pre-treatment in varied Wood with High ......G=5 3 ΔE=1.2 G=75 ΔE=13.1 G=53 ΔE=2 G=83 After Test Before Test Fig.2-1 Delta difference color (ΔE) Fig.2-2 60o Gloss 0

Eversorb® SB1

Waterborne Wood Pretreatment

19

- Enhanced Color Retention for Wood

Resin: Acrylic(AC) Emulsion Clear Coating(VONCOAT SAT-177) Application: SprayFilm Thickness: 30 microns Exposure Unit : Q-U-V with UVB-340 light bulbTest Methods: ASTM G154-1Exposure Time: 300 hours

Blank

2% EV-AQ1 +10% EV-SB1 pretreatment

ΔY=29.2 ΔY=3.6

2% Eversorb-AQ1 in top coat

over 10% Eversorb-SB1 pretreatment (on Southern Pine)

ΔY=16.2

10% EV-SB1 pretreatment 2% EV-AQ1

ΔY=9.5

Page 20: Studies of Pre-treatment in varied Wood with High ......G=5 3 ΔE=1.2 G=75 ΔE=13.1 G=53 ΔE=2 G=83 After Test Before Test Fig.2-1 Delta difference color (ΔE) Fig.2-2 60o Gloss 0

Conclusions

• AQ1 is easy to disperse in waterborne coatings

and meet the requirements.

• 10% SB1 in IPA is good for the pretreatment to

softwoods.

• Using AQ1 and SB1 together can give you

synergistic performance.

20

Page 21: Studies of Pre-treatment in varied Wood with High ......G=5 3 ΔE=1.2 G=75 ΔE=13.1 G=53 ΔE=2 G=83 After Test Before Test Fig.2-1 Delta difference color (ΔE) Fig.2-2 60o Gloss 0

21

Everlight Chemical Profile

• Founded in 1972 in Taiwan

• Listed in Taiwan Stock Exchange since 1988(Stock code: 1711)

• Revenue: USD $330M (2018)

• 5 Business Units:

Page 22: Studies of Pre-treatment in varied Wood with High ......G=5 3 ΔE=1.2 G=75 ΔE=13.1 G=53 ΔE=2 G=83 After Test Before Test Fig.2-1 Delta difference color (ΔE) Fig.2-2 60o Gloss 0

1,900Employees

17Offices

6Production Sites

Charlotte

Rotterdam

Mersin

Tianjin

Qingdao

Shanghai

Suzhou

Guangzhou

Zhuhai

Hong Kong

Taipei (HQ)

Suzhou

Taoyuan (4)

Hsinchu

22

Page 23: Studies of Pre-treatment in varied Wood with High ......G=5 3 ΔE=1.2 G=75 ΔE=13.1 G=53 ΔE=2 G=83 After Test Before Test Fig.2-1 Delta difference color (ΔE) Fig.2-2 60o Gloss 0

Publications

23

Page 24: Studies of Pre-treatment in varied Wood with High ......G=5 3 ΔE=1.2 G=75 ΔE=13.1 G=53 ΔE=2 G=83 After Test Before Test Fig.2-1 Delta difference color (ΔE) Fig.2-2 60o Gloss 0

Eversorb® in Everyday Life!

24

Page 25: Studies of Pre-treatment in varied Wood with High ......G=5 3 ΔE=1.2 G=75 ΔE=13.1 G=53 ΔE=2 G=83 After Test Before Test Fig.2-1 Delta difference color (ΔE) Fig.2-2 60o Gloss 0

25

https://everlight-uva.com/

Premium UV Absorbers & Light Stabilizers

Italian Distributor

B.A. Special Chem & Color S.r.l.

Contact: Mr. Luca [email protected]

https://everlight-uva.com/
mailto:[email protected]
Page 26: Studies of Pre-treatment in varied Wood with High ......G=5 3 ΔE=1.2 G=75 ΔE=13.1 G=53 ΔE=2 G=83 After Test Before Test Fig.2-1 Delta difference color (ΔE) Fig.2-2 60o Gloss 0

Thank You!


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