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Home » Adhesives » Polyether Polyol Resins » Polyether Triols

Polyether Triols

Tri-iso distributes a wide range of polyether triols that allow formulators to produce high quality polyurethane adhesives.  Polyols contain reactive hydroxyl (OH) groups which react with isocyanate (NCO) groups on isocyanates to form polyurethane adhesives. 

Polyether-based polyurethane adhesives exhibit enhanced hydrolytic stability and excellent resistance to weak acids and bases compared to polyester-based polyurethane adhesives.  However, polyether-based polyurethane adhesives are more susceptible to UV radiation and provide poor resistance to oils and fuels compared to polyester-based polyurethane adhesives.

Polyether triols are formed by propoxylating an initiator (addition of propylene oxide to an initiator).  In some cases, the initiator is ethoxylated (addition of ethylene oxide) as well as propoxylated.  Ethoxylation can be incorporated in the middle of the polyol, or at the end (tip) of the triol. When polyether triols have ethylene oxide tips, the resulting hydroxyl groups are primary hydroxyls; propylene oxide tips yield secondary hydroxyl groups.  Secondary hydroxyl groups react slower than primary hydroxyl groups as a result of the increased steric hindrance.  Ethylene oxide is more hydrophilic, and thus polyether polyols with ethylene content tend to produce polyurethane adhesives that are more hydrophilic than those produced with polyether polyols that are made solely with propylene oxide.  The initiator used to produce the triol can impact reactivity as well as functionality of the polyol.  Amine initiated polyether diols are self-catalyzing and react faster than standard glycol initated polyether triols. 

There are several key characteristics which define what performance properties a given polyether triol will impart in a given polyurethane adhesive.  These characteristics include:  the hydroxyl number or hydroxyl value  (OH value), OH equivalent weight, and the molecular weight of the triol.

Hydroxyl number (OH ) is the measure of the hydroxyl group content of gram of triol.  Hydroxyl value is measured by titrating a known mass of triol 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 triol.

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 triol functionality (3).

 

Your Tri-iso Technical Sales Representative is available to assist you in the selection of the appropriate polyether triol that will provide the specific properties you are trying to obtain. Click here to request a quote.

  Product Name  Model   
Carpenter Carpol GP-1000
Carpenter Carpol GP-1000

1000MW glycerine and PO based polyether polyol triol read more
Carpol GP-1000
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Carpenter Carpol GP-1000-60
Carpenter Carpol GP-1000-60

Carpol GP-1000-60 is a glycerine and PO based polyether triol. read more
Caropol GP1000-60
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Carpenter Carpol GP-1500
Carpenter Carpol GP-1500

Carpol GP-1500 is a 1500MW glycerine and propylene oxide based polyether triol read more
Carpol GP-1500
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Carpenter Carpol GP-1500-60
Carpenter Carpol GP-1500-60

Carpol GP1500-60 is a 1500MW glycerine and propylene oxide based polyether triol read more
Carpol GP-1500-60
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Carpenter Carpol GP-3000
Carpenter Carpol GP-3000

Carpol GP-3000 is a 3000MW glycerine and propylene oxide based polyether triol read more
Carpol GP-3000
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Carpenter Carpol GP-3000-60
Carpenter Carpol GP-3000-60

Carpol GP3000-60 is a 3000MW glycerine and PO based polyether triol read more
Carpol GP-3000-60
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Carpenter Carpol GP-4000
Carpenter Carpol GP-4000

4000MW glycerine and propylene oxide based polyether polyol triol read more
Carpol GP-4000
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Carpenter Carpol GP-4000-50
Carpenter Carpol GP-4000-50

Carpol GP4000-50 is a 4000MW glycerine and propylene oxide based polyether triol read more
Carpol GP-4000-50
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Carpenter Carpol GP-4000-60
Carpenter Carpol GP-4000-60

Carpol GP4000-60 is a 4000MW glycerine and propylene oxide based polyether polyo read more
Carpol GP-4000-60
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Carpenter Carpol GP-4520
Carpenter Carpol GP-4520

4500MW glycerine and PO based triol with 20% EO tip read more
Carpol GP-4520
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Carpenter Carpol GP-4520-55
Carpenter Carpol GP-4520-55

4500MW glycerine and PO triol with 20% EO tip read more
Carpol GP-4520-55
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Carpenter Carpol GP-4520-60
Carpenter Carpol GP-4520-60

4500MW glycerine and PO based triol with 20% EO tip read more
Carpol GP-4520-60
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Carpenter Carpol GP-5000
Carpenter Carpol GP-5000

5000MW glycerine and propylene oxide based polyether triol read more
Carpol GP-5000
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Carpenter Carpol GP-5000-60
Carpenter Carpol GP-5000-60

5000MW glycerine and propylene oxide based triol read more
Carpol GP-5000-60
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Carpenter Carpol GP-5015
Carpenter Carpol GP-5015

5000MW glycerine and PO based triol with 15% EO tip read more
Carpol GP-5015
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Carpenter Carpol GP-5171
Carpenter Carpol GP-5171

5000MW glycerine and PO based triol with 71% EO tip read more
Carpol GP-5171
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Carpenter Carpol GP-6015
Carpenter Carpol GP-6015

6000MW glycerine and PO based triol with 15% EO tip read more
Carpol GP-6015
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Carpenter Carpol GP-700
Carpenter Carpol GP-700

700MW glycerine and propylene oxide based polyether polyol trill read more
Carpol GP-700
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Carpenter Carpol GP-700-50
Carpenter Carpol GP-700-50

700MW glycerine and propylene oxide based polyether polyol triol read more
Carpol GP-700-50
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Carpenter Carpol GP-700-60
Carpenter Carpol GP-700-60

700MW glycerine and propylene oxide based polyether polyol triol read more
Carpol GP-700-60
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