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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

Brand Name:EXCEEDCHEM
Certification:ISO9001:2008
Model Number:TDI-80/Polyether Polyurethane Prepolymer Shore A95-97
Minimum Order Quantity:1mt
Delivery Time:5-8 work days
Payment Terms:L/C, T/T
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Location: Qingdao Shandong China
Address: No.166, Zhengyang Middle Road, Chengyang District, Qingdao City, Shandong Province, China. 266000
Supplier`s last login times: within 15 hours
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Product Details

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

TypeAppearanceViscosity(mPa.s/85℃)NCO%Packing(kg/drum)
Liquid300-3306.50-6.7020/200

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


ItemMOCA (%)Gel time(min)Mixing temperature(℃)Post vulcanization(h)
Specification18.8-19.22.5-380/12010

7. Finished products properties


ItemHardness(Shore A)Tensile strength(MPa)Tear strength(KN/m)Rebounding(%)
Physical properties95-9735-3695-10041

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

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

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