Water resistance
Addition of a crosslinking agent
Nichigo G-Polymer™ is a resin with outstanding water solubility, but water resistance
can be achieved by using it with a crosslinking agent.
In addition, Nichigo G-Polymer™ has
high crosslinking performance compared to PVOH.
When Zircosol ZN (Zirconyl nitrate) used
Crosslinking agent : Zircozol ZN (Daiichi Kigenso Kogyou, Zirconium Oxynitrate )
Adding amount of crosslinking agent : 10 phr/100 phr resin
Thermal treatment conditions : 5 minutes at each temperature
Nichigo G-Polymer™ : DP1,200 SV : ≧99.0
PVOH : DP1,200 SV : ≧99.0
DP : Degree of Polymerization SV : Saponification Value
Addition of other crosslinking agents
【Evaluation method】
After adding each crosslinking agent to aqueous solutions of 10%
G-Polymer™ concentration, adjust to the prescribed pH. At 23℃, air dry the aqueous solution
and create a film of about 100 μm. Conduct thermal treatment on the resulting film, and measure the
elution rate after extraction for 1 hour in 80℃ water.
1) ; phr/100 phr resin
* : after pH adjusted
