Recent Advances in Soyad® Adhesives
Don Saylor & Dr. Jim WescottHPVA MeetingScottsdale, AZMay 25, 2010
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5+ years of growth
14 North American HWPW-VC, HWPW-CC, & EWF mills currently manufacture with Soyad® adhesives
Approximately 50% of the adhesives used to manufacture domestic HWPW & EWF stock panels are Soyad® adhesives
Currently replacing over 75 million lbs of UF adhesive in HWPW & EWF annually
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Soy Flour + Curing Resin
Process and Performance Additives
Soyad® Adhesive Technology
CROSSLINKED ADHESIVE
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Soyad Technical Advances
Higher Solids
Lower Viscosity
Increased Stability
Adhesion Performance Modifiers
Crosslinker Advancements
- Lower VOC’s
- New technology allows for solids >50%
•Traditional Solids for paper chem 12-20%
- Lower viscosity technology has been developed
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Why Choose Soyad?
100% NAF Adhesive
The most cost effective NAF option
Wide operating window
The Four S’s: Safe, Simple, Sticks, Stable
Very easy to clean up
Excellent durability- hot or cold water conditions
Commitment to Excellence
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Commitment to Excellence
600 Technical Service Chemical Engineers in NA available to support Soyad!
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Why Choose Soyad?
100% NAF Adhesive
The most cost effective NAF option
Wide operating window
The Four S’s: Safe, Simple, Sticks, Stable
Very easy to clean up
Excellent durability- hot or cold water conditions
Commitment to Excellence
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Why Choose Soyad?
100% NAF Adhesive
The most cost effective NAF option
Wide operating window
The Four S’s: Safe, Simple, Sticks, Stable
Very easy to clean up
Excellent durability- hot or cold water conditions
Commitment to Excellence
Extremely low emissions under ALL conditions
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Low Emissions Under ALL Conditions
CARB specifies “Large Chamber ASTM E-1333” as the primary test method
E-1333 is conducted at only 25 C and 50% RH- Most test are run at extremes… not this one!
UF chemistry suffers from hydrolysis resulting in the GENERATION and subsequent evolution of ADDITIONAL formaldehyde
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Emissions: Temp and Humidity Effects
Static method in sealed bottles
- (modified EN 717-3)
Varying levels of humidity and temperature
Varying durations
Soyad and ULEF samples tested (Both CARB II)
¾” 7-ply HWPW Construction
Study was run at and in cooperation with the Forest Products Laboratory
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Estimated CARB P2 level < 10 ULEF Continues to generate additional CH2O ULEF at 96 hrs = 33X Soyad
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Soyad panels emit very little additional formaldehyde after the first 24 hours
ULEF rate is actually increasing exponentially (scavenger is consumed?)
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Stability Testing of EWF
5-Ply Engineered Wood Flooring Panels Oak/Gum/Gum/Gum/Oak construction
3/8” thickness
Samples were subjected to an extreme range of temperature/humidity combinations over 15 days to probe durability
Panels were cut into test pieces before beginning test protocol to maximize exposure of bond lines to environment. 3-Cycle soak samples (2” X 5”)
Shear samples (1” X 3”)
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Day # ConditionTime(hr)
Temperature(°F)
RelativeHumidity
TheoreticalMC
Pre-Test Conditioning 72 70 50% 9.2%
1 Hot/Wet 24 80 90% 20.2%
2 Cold/Moist 24 15 70% 13.5%
3 Hot/Dry 24 90 20% 4.3%
4 Cool/Wet 24 36 90% 21.0%
5 Hot/Dry 24 90 20% 4.3%
Post-Test Conditioning 72 70 50% 9.2%
3X
Temperature/Humidity Cycling Protocol
Stability Testing of EWF
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Length (in)
Height (in)
Width (in)
Control Samples 3.282 0.997 0.380
Cycled Samples 3.282 0.998 0.380
Dimensional Stability of Shear Test Samples
Panel Testing
3-Cycle Soak Shear Strength Testing
Dry Std. % Wet Std. %
% Shear Dev. Dry Shear Dev. Wet
Type Score Pass (psi) (psi) WF (psi) (psi) WF
Control 0.81 100% 448 74 83 251 68 12
Cycled 0.38 100% 511 91 63 267 70 2
Shear and 3-Cycle Soak Test Results
Bond lines 1 & 2 tested in shear tests (oak-gum-gum)
Stability Testing of EWF
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Continued Development
Desire for higher % wet wood failure
- Requirement for EN-314
- Requirement for ANSI/HPVA Type I bond
Lower cost system
Enhanced bonding to challenging veneers
- Hickory, Fumed Yellow Birch
Simpler system for small veneering and assembly
Desire for a lighter cured glue color