Pulp Paper Industry Defoamer Polyether

• Customization: Available
• CAS No.: No Available
• Formula: No Available
• Model NO.: 7457
• EINECS: No Available
• Certification: GMP
• Environmental Protection: Yes
• Color: Amber
• Appearance: Liquid
• Kind: Sizing Agent
• Producing Flow: Paper Processing Chemicals
• Custom Package: Available
• Shelf Time: 12 Months
• Transport Package: Drum
• Specification: 100-500 cps
• Trademark: LONGKEY
• Origin: China
• HS Code: 380991
• Production Capacity: 20000mt/M

Product Description

 

Polyether Defoamer

 

Product Overview

Sunpaper 7457 is a high-performance polyether defoamer designed for demanding foam control in papermaking systems, particularly in recycled fiber processes (e.g., wastepaper-derived pulp). It delivers rapid foam collapse, sustained suppression, and enhanced dewatering efficiency without compromising internal sizing performance.

 

Key Features

1. Rapid Defoaming Action

   • Achieves >90% foam reduction within 30 seconds under mechanical shear (500-1500 RPM).

2. Long-Term Stability

   • Resists hydrolysis and maintains efficacy in pH 4-10 and temperatures up to 60°C.

3. Broad-Spectrum Compatibility

   • Effective in:
     • Recycled Fiber Systems: High anionic trash (10-200 μeq/g) and dissolved colloidal substances (DCS).
     • Paper Grades: Testliner (125-200 g/m²), fluting medium (80-140 g/m²), white-top linerboard.
     • Process Water: Closed-loop systems with high conductivity (2-15 mS/cm).

4. Dewatering Enhancement

   • Reduces air content in white water by 20-30%, improving wire section drainage by 12-18%.

5. Cost Efficiency

   • 40-60% dosage reduction compared to conventional fatty alcohol defoamers (e.g., tributyl phosphate).

 

Physical Properties

Property	Value/Range
Appearance	Pale yellow to amber viscous liquid
pH	4.0-8.0 (1% aqueous solution)
Odor	Slightly oily odor
Viscosity	100-500 mPa·s (25°C)
Density	0.95-1.05 g/cm³

Note: Properties are indicative and not intended as quality control specifications.

 

Application Guidelines

1. Typical Dosage

   • 100-250 g/ton of dry pulp (optimized via factorial analysis of system variables).

2. Critical Injection Points

   • Wire pit (post-forming section).
   • White water chest (pre-decker).
   • Size press circulation loop.
   • High-consistency pulpers (3-8% consistency).

3. Dosing Method

   • Use continuous multi-point dosing with peristaltic pumps (flow rate: 0.5-5 L/h).

4. Process Integration

   • Conduct jar tests to optimize dosage against dynamic conditions:
     • Furnish composition (recycled fiber %).
     • Machine speed (200-1500 m/min).
     • Retention aid type (e.g., cationic starch, microparticle systems).
   • Monitor foam levels via optical sensors or conductivity probes.

 

Packaging & Storage

• Packaging: 200 kg PP drum or 1000 kg IBCs.
• Container Load: 22 MT/20 ft. (IBC).
• Storage: Store in sealed containers in a cool, dry place away from sunlight.
• Shelf Life: 12 months.
• Transportation: Classified as non-hazardous under standard regulations.

 

Health & Safety

• Hazard Profile: Non-hazardous per GHS criteria (no H/P phrases).
• Handling:
  • Eye/Skin Contact: Flush immediately with water.

 

Disclaimer

The information provided in this Technical Data Sheet is based on current knowledge and practices. Please consult Sunpaper directly for specific queries or updates.

 

Let me know if you need further clarification!

Also provide:

Bactericide
Control Enzyme
Cylinder Release aid
Defoamer (fatty)
Defoamer (polyether)
Dry Strength Agent
Yankee dryer adhesion gent.

Please contact me for pricing and samples.