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Casting Polyurethane 32472 85 8 Polyester Polyol

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Casting Polyurethane 32472 85 8 Polyester Polyol

Casting Polyurethane 32472 85 8 Polyester Polyol
Casting Polyurethane 32472 85 8 Polyester Polyol
Casting Polyurethane 32472 85 8 Polyester Polyol Casting Polyurethane 32472 85 8 Polyester Polyol

Large Image :  Casting Polyurethane 32472 85 8 Polyester Polyol

Product Details:
Place of Origin: China
Brand Name: EXCEEDCHEM
Certification: ISO9001:2018
Model Number: Polyester Polyol for CPU
Payment & Shipping Terms:
Minimum Order Quantity: 1mt
Price: FOB Qingdao usd1.0/kg
Packaging Details: 210kg/drum
Delivery Time: 5-8 work days
Payment Terms: L/C, T/T
Supply Ability: 3000mt/month

Casting Polyurethane 32472 85 8 Polyester Polyol

Description
CAS: 32472-85-8 Raw Material: EG/AA
Application: CPU Color: Colorless Liquid
Packing: 200kg/drum Shelf Life: 6months
High Light:

32472 85 8 Polyester Polyol

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Casting Polyurethane Polyester Polyol

Polyester Polyol for Casting Polyurethane Series EG/AA based

1. Description

 

This series of polyester polyol is mainly used for producing polyurethane elastomer and the molecular weight can be adjusted according to customer request.

 

2. Application

 

This series of polyester polyols is mainly used for producing casting polyurethane especially middle and high hardness pre-polymer. The pre-polymer is mainly used for producing polyurethane sieve plate, caster, roller, pad, rod and molded potting product.

 

 

3. Physical properties

 

Raw material Grade Molecular weight(g/mol) OH value(mgKOH/g) Acid value(mgKOH/g) Water content(%) Viscosity(75℃ cps) Chrom(APHA)
EG/AA PE-2010 1000 107-117 ≤0.5 ≤0.03 100-200 ≤30
PE-2020 2000 53-59 ≤0.5 ≤0.03 400-650 ≤30

 

4. Key parameters

 

The hydroxyl number (OH): is the measure of the hydroxyl group content of gram of polyol.
Hydroxyl value (OH value): is measured by titrating a known mass of polyol against potassium hydroxide (KOH), and is expressed as mg KOH/g.

Lower hydroxyl values indicates lower hydroxyl content and a higher molecular weight for the overall polyol.

OH equivalent weight: is the number of grams of a given product that contains one equivalent of hydroxyl groups (NCO). Equivalent weight = 56100/OH
Molecular weight: is determined by multiplying the equivalent weight by the polyol functionality
The functionality: of the polyol refers to the number of OH groups per molecule.

Increasing the number of OH groups results in greater crosslinking. Greater crosslinking yields stiffer, harder products with enhanced chemical and thermal resistance. Polyols that contain 2 hydroxyl groups are called diols, polyols with 3 functional groups are called triols, polyol groups with 4 hydroxyl groups are called tetrols.

Contact Details
Qingdao Exceed Fine Chemicals Co.,Ltd

Contact Person: Louis.liu

Tel: 86-15275281902

Fax: 86-532-82693196

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