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TDI 80/20 PPG Prepolymer The Preparation Of PU Bars Raw Material

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TDI 80/20 PPG Prepolymer The Preparation Of PU Bars Raw Material

TDI 80/20 PPG Prepolymer The Preparation Of PU Bars Raw Material
TDI 80/20 PPG Prepolymer The Preparation Of PU Bars Raw Material

Large Image :  TDI 80/20 PPG Prepolymer The Preparation Of PU Bars Raw Material

Product Details:
Place of Origin: China
Brand Name: EXCEEDCHEM
Certification: ISO9001:2008
Model Number: TDI-80/Polyether Polyurethane Prepolymer Shore A95-97
Payment & Shipping Terms:
Minimum Order Quantity: 1mt
Price: FOB Qingdao usd3.0/kg
Packaging Details: 20kg/drum; 200kg/drum
Delivery Time: 5-8 work days
Payment Terms: L/C, T/T
Supply Ability: 3000mt/month

TDI 80/20 PPG Prepolymer The Preparation Of PU Bars Raw Material

Description
NCO%: 6.50-6.70 MOCA%: 18.8-19.2
Hardness: Shore A95-97 Base: TDI-80/Polyether
Color: Colorless Liquid CAS NO: 584-84-9
Highlight:

584 84 9 Tdi T80 Polyurethane

,

Modification Agent T80 Polyurethane

,

584 84 9 T80 Polyurethane

TDI 80 Polyurethane Prepolymer Used In The Preparation Of PU Bars

 

1. Description

 

This is a TDI-80 based polyether polyurethane prepolymer.

 

2. Characteristics

 

  • Water resistance
  • Low temperature resistance
  • Mold resistance

3. Applications

  • Roller
  • Plate and bar
  • Sealing ring

4. Typical properties

Type Appearance Viscosity(mPa.s/85℃) NCO% Packing(kg/drum)
  Liquid 300-330 6.50-6.70 20/200

 

5. Operating Procedure

 

First, the prepolymer should be preheated in 80-85℃. Second, after vacumming, the prepolymer is to be mixed with melting MOCA evenly. Third, with degassing, casting into mould, and vulcanization,and then demould. Lastly, the finished product should be post vulcanized.

 

6. Reaction parameters

 

Item MOCA (%) Gel time(min) Mixing temperature(℃) Post vulcanization(h)
Specification 18.8-19.2 2.5-3 80/120 10

 

 

7. Finished products properties

 

Item Hardness(Shore A) Tensile strength(MPa) Tear strength(KN/m) Rebounding(%)
Physical properties 95-97 35-36 95-100 41

 

 

Contact Details
Qingdao Exceed Fine Chemicals Co.,Ltd

Contact Person: Mr. Louis.liu

Tel: 86-15275281902

Fax: 86-532-82693196

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