Properties

  • Its aqueous solution behaves as a polymer electrolyte.
  • Its solubility in water is much better than ordinary PVOH.
  • Its aqueous solution excels in viscosity stability, is less prone to abnormalities in fluidity under high shearing speed conditions, and performs excellently in high-speed coating operations.
  • Its solubility in aqueous alkali solutions is excellent.
  • It features good compatibility with water-soluble polymers such as starch.
  • It forms a chelate with a metal ion (in particular, aluminum ion) to cross-link and insolubilize the metal ion.
  • As a result of coating operation for paper, it greatly improves the surface strength and strength in Z-axis of the paper.
  • It features much better barrier properties than ordinary GOHSENX
Technical Specifications
Product Grade Viscosity
mPa•s (4 % ,20 degree C)
Saponification Degree
mol %
pH
(4 % )
Applications
T-330H 27.0 ~ 32.0 99.0 or higher 6.0 ~ 8.0 Printing stock,
coat paper,
emulsifying stabilizer,
adhesive, film
T-330 27.0 ~ 33.0 95.0 ~ 98.0 6.5 ~ 7.5
T-350 27.0 ~ 33.0 93.0 ~ 95.0 6.5 ~ 7.5

Applications by Grades

The possible applications of GOHSENX T include:

Paper-related agents

Surface strength improvement, printability improvement, vessel pick prevention, improved Z-axis strength, barrier effect (oil resistance, chemical resistance)

Plywood adhesives

Initial bonding strength

Cement and mortar additives

Stabilization of alkalinity

Textile sizing agents

Divide performance, fluff binding effect, wear resistance improvement, desizing readiness

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Paper Coating Properties with GOHSENX T
  IGT Pick Strength (cm/sec) Z-axis Strength (kg/cm) Permeability (sec) Oil Absorptiveness (sec)
GOHSENX T-330H 95 2.5 10 12
GOHSENX T-330 90 2.3 13 20
GOHSENX T-350 85 2.2 35 80
GOHSENX N-300 65 1.7 8 10
Oxidized starch 50 1.3 8 8
Base stock: L-BKP 100%, basis weight 66 g/m2
Size press: 90 m/min, line pressure 11 kg/cm
Drying: 150 degree C×3 min Coating weight: 1g/m2

Dissolution and Storage

Dissolving GOHSENX

Usually, PVA is used in the form of an aqueous solution. Solubility in water varies depending on the type of PVA. GOHSENX, a carboxyl group-modified PVA, boasts higher solubility than GOHSENX.
GOHSENX is charged into room temperature water in small amounts, and thoroughly dispersed. The water is heated, with constant stirring, the temperature is kept at 80 to 90 degree C for 30 to 60 minutes.

Storing GOHSENX T

Avoid storage in tanks or pipes that can readily rust. When considering blending GOHSENX with a defoaming agent, rust preventive agent, or antiseptic agent, refer to the handling instructions of the chemical being blended.

Comparison of Effluent Water Loads of Water Soluble Polymers
Polymer COD (mg/kg)x104 BOD(mg/kg)x102
GOHSENX T-330 99 83
GOHSENOL 60 ~ 100 50 ~ 100
Corn Starch 36 7,400
Measuring conditions: Sample concentrations mean pure material concentrations.
COD was measured by potassium permanganate method (JIS K 0102), and BOD5 means the BOD value of over 5 days.
Measurement: Registration No. of measurement certification enterprise, Osaka No. 10013, KK Osaka Environmental Technology Center.

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