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 Introducing the Range of SEKISUI S-LEC SV Resins |
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| S-LEC SV is a new resin from SEKISUI which maintains the same great characteristics as the S-LEC B resin series, but also has excellent rheological properties.S-LEC SV is a new resin from SEKISUI which maintains the same great characteristics as the S-LEC B resin series, but also has excellent rheological properties. |
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S-LEC SV is a new polyvinyl acetal based polymer with excellent rheological properties
S-LEC SV bonds strongly to metals and inorganic materials like glass and ceramics
S-LEC SV is remarkably tough and flexible |
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Features |
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Rheological Properties
In general, polymer/solvent solutions exhibit elongational or honey-like stringing properties caused by polymer chain entanglement.
This stringing phenomenon causes processing and quality problems in production.
S-LEC SV is a resin specially formulated to prevent stringing.
Comparison data for S-LEC SV and PVB solutions are shown in Fig. 1.
Conventional PVB solution strings readily, while S-LEC SV has low stringing properties which vastly improve processibility.
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*Time required for liquid string of resin/solvent solution to break
Measurement Conditions:
Solvent: Dihydroterpinyl Acetate
Solution Viscosity: 3.5 Pa?s |
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Solubility
S-LEC SV is soluble in many organic solvents (alcohols, esters, ketones and terpineols).
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Table1: Solubility of S-LEC
SV
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SOLVENT
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SV-02
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SV-05
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SV-06
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Ethanol
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S
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S
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S
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Ethil acetate
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S
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PS
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S
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Metyl ethyl ketone(MEK)
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S
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PS
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S
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Tolene
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IS
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IS
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IS
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Terpineol
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S
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S
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S
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Dihydroterpineol Acetate(DHTA)
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S
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PS
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S
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Butyl Carbitol Acetate(BCA)
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S
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PS
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S
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Key: (S)Soluble, (PS)Partially Soluble, (IS)Insoluble
Test Method: Resins (1 g) were dissolved in solvent (20g) at 20'C |
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S-LEC SV Types and General Characteristics |
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Grade
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Molecular
weight
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Volatiles
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Free
Acid
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Hydroxyl
Content
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Viscosity
(mPa.S)
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SV-02
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LOW
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3%
max
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0.05%
max
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ca
22mol%
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10
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SV-05
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HIGH
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3%
max
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0.05%
max
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ca
21mol%
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120
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SV-06
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HIGH
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3%
max
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0.05%
max
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ca
22mol%
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90
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Notes:
Ethanol:Toluene (1:1), resin content 5% solution
All values measured by Brookfield (type BM) viscometer at 20'C
All values shown are not specification limits
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Please contact us for details, using inqire form |
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