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Casting Polyurethane 32472 85 8 Polyester Polyol
Casting Polyurethane 32472 85 8 Polyester Polyol
Specifications
Brand Name :
EXCEEDCHEM
Model Number :
Polyester Polyol for CPU
Certification :
ISO9001:2018
Place of Origin :
China
MOQ :
1mt
Price :
FOB Qingdao usd1.0/kg
Payment Terms :
L/C, T/T
Supply Ability :
3000mt/month
Delivery Time :
5-8 work days
Packaging Details :
210kg/drum
CAS :
32472-85-8
Raw material :
EG/AA
Application :
CPU
Color :
colorless liquid
Packing :
200kg/drum
Shelf life :
6months
Description

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.

Product tags

polyurethane casting resin

,

casting polyurethane

,

polyurethane cast
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Casting Polyurethane 32472 85 8 Polyester Polyol

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Product Detail
Brand Name :
EXCEEDCHEM
Model Number :
Polyester Polyol for CPU
Certification :
ISO9001:2018
Place of Origin :
China
MOQ :
1mt
Price :
FOB Qingdao usd1.0/kg
Contact Supplier
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Casting Polyurethane 32472 85 8 Polyester Polyol

Qingdao Exceed Fine Chemicals Co.,Ltd

Verified Supplier
6 Years
shandong, qingdao
Since 2013
Business Type :
Manufacturer, Distributor/Wholesaler, Exporter, Trading Company
Main Products :
TDI MDI Polyurethane, TDI Based Polyurethane, MDI Based Polyurethane
Total Annual :
10000000-20000000
Employee Number :
50~100
Certification Level :
Verified Supplier
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