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White Solid MDI / PTMG Based Prepolymer Abrasion Resistant Hardness 90

Qingdao Exceed Fine Chemicals Co.,Ltd

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Address: No.166, Zhengyang Middle Road, Chengyang District, Qingdao City, Shandong Province, China. 266000

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White Solid MDI / PTMG Based Prepolymer Abrasion Resistant Hardness 90

Country/Region china
City & Province qingdao shandong
Categories Chemical Reagents
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Product Details

White solid MDI/PTMG Prepolymer Hardness 90

 

1. Description

This is an MDI-terminated PTMG prepolymer of low viscosity and easy processing. It enjoys a high performance and high abrasion resistance.

 

2. Application

It applies to make PU rods, castor wheels, PU pad, PU sheet, rubber roller, sieve plate, etc.

 

3. Product Specification

 

NCO Content (%)7.5±0.2
Density (25℃)/(g/cm3)1.11
Viscosity at 85℃ (Mpa.s)1000
Appearance at 25℃White solid

 

4. Operation introduction

 

Ratio (Prepolymer/1,4BDO)100/7.8
Mix temperature/℃ (Prepolymer/1,4BDO)80/40
Gel time/min8
Postcure (110℃)/h48

 

5. Physical Properties

 

Hardness/ shore A90±1
Tensile Strength/ Mpa43
100% Modulus/MPa9.2
300% Modulus/MPa16.6
Elongation at break/%683
Tear strength (without nick) / kN/m110
Tear strength (with nick) / kN/m44
Rebound/%64
DIN Abrasion(mm3)44

 

 

6. Shelf life

The storage time of original packing is 6 months at the above condition from the date of production.

 

7. Package

20kg or 200kg per steel drum

 

8. Safety

Use in a well-ventilated area. Avoid contact with skin using protective gloves and protective clothing. Repeated or prolonged contact on the skin may cause an allergic reaction. Eye protection is extremely important. Always use approved safety glasses or goggles when handling this product.

If Contact Occurs:

Skin: Immediately wash with soap and water. Remove contaminated clothing and launder before reuse. Seek medical attention if allergic reactions occur.

Eyes: Immediately flush with water for at least 15 minutes, contact a physician.

Ingestion: If swallowed, contact a physician immediately. Remove stomach contents by gastric suction or induce vomiting only as directed by medical personnel. Never give anything by mouth to an unconscious person.

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