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SKYBON EM 水性乳液聚酯树脂 (Water-borne emulsion polyester)

  • 价格:面议
  • 型号:SKYBON EM

产品介绍

    ü Description of SKYBON EM

    - Linear, amorphous polyester that disperse in water without surfactant or amine.

     

                                

     

    ü Advantage

    Eco friendly

    Surfactant free

    High solid contents with relatively low viscosity

    Excellent hydrolysis resistance

    Excellent storage stability

    Uniform particle size & narrow particle size

    distribution

     

     

    ü Typical characteristics of EM

      

     

    Property

     

    EM series

     

    Non-volatile

     

    50 %

     

    Appearance

     

    Milky white liquid

     

    Viscosity

     

    1,000 cps

     

    Particle size

     

    150 nm

     

    pH

     

    Approx. 6.3

     

    Storage stability

     

    > 6 months

     

    ü roperties of base polyesters

       

     

    Property

     

    unit

     

    EM 110

     

    EM 360

     

    EM 410

     

    EM 660

     

    Intrinsic viscosity(1)

     

    dl/g

     

    0.53

     

    0.72

     

    0.50

     

    0.45

     

    Molecular weight (Mn)(2)

     

    g/mol

     

    18,000

     

    20,000

     

    17,500

     

    16,000

     

    Tg(3)

     

     

    62

     

    17

     

    47

     

    70

     

    Acid value

     

    KOH mg/g

     

    < 1

     

    < 1

     

    < 1

     

    < 1

     

    Hydroxyl value

     

    KOH mg/g

    5~7

    4~6

    5~7

    6~8

     

    Dispersion media

     

    -

     

    DW*

     

    DW*

     

    DW*

     

    DW*

     

    (1)  OCP (O-chlorophenol) at 35℃   (2) GPC in THF (3) DSC *DW: de-ionized water



    ü Comparison by type of polyester

                   


    ü Coating performance

     

    Property

    Result

    Gloss (20° / 60°)

    86 / 98

    Fracture hardness

    4H~5H

    Cold water resistance (24hrs)

    Excellent*

    Boiling water resistance (1hr)

    Excellent*

    MEK rubbing

    10 times for (4)

    100 times(5)

     

    * Appearance and gloss of cured film do not change after immersion

    (4) Isocyanate curing system (5) Melamine curing system

     


    ü Humidity resistance

    [ 20 µm ]

     

     

    EM 360

    EM 110

    / EM 410

     

    EM 660

    Duration time (hrs)

     

    320

     

    1,500

     

    > 2,100

    • Test condition : 85, 85%RH



    ü Chemical resistance


     

    HNO2% (2hr)

    NaOH 2% (2hr)

    EM (emulsion)

    Excellent

    Excellent

    ES (solvent borne)

    Excellent

    Excellent

    EW (water soluble)

    Good

    Poor

     

         




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