Hybrid Technology for Roof Coatings Technology for Roof Coatings Bruce Barbera, Misty Huang and...

Click here to load reader

  • date post

    27-Mar-2018
  • Category

    Documents

  • view

    220
  • download

    1

Embed Size (px)

Transcript of Hybrid Technology for Roof Coatings Technology for Roof Coatings Bruce Barbera, Misty Huang and...

  • 1

    Hybrid Technology for Roof Coatings

    Bruce Barbera, Misty Huang and Vikram Kumar

    July 2016

  • SPUR+* pre-polymer technology fit in Roof Coating formulations

    SPUR+ Y-15990 pre-polymer features of interest in formulating Roof

    Coatings

    SPUR+ Y-15990 pre-polymer Product comparison vs. other commercial

    benchmark chemistries

    Advantages over Silicone Roof Coatings

    Advantages over Acrylic Roof Coatings

    Agenda

    2 *SPUR+ is a trademark of Momentive Performance Materials Inc. Copyright 2016 Momentive Performance Materials Inc. All rights reserved.

  • catalyst / moisture

    + ROH

    Si O Si

    O

    O

    Si O

    Si

    O O

    Si

    Si O

    Si

    O

    Si

    O O Si

    O O

    Si Si

    O Si

    Si O O

    Si Si

    O Si

    Si

    O

    O

    O

    O

    Si O

    O

    O

    O O

    Si Si

    Si

    O

    Si Si

    Si O

    Si

    Si

    Si

    Si

    O O

    O O

    Si Si

    Si

    SPUR+* Prepolymer: Structure and cure mechanism

    Silane Polyurethane backbone Silane

    (RO)3Si-R-X-C-NH

    O

    NH-C-X-R-Si(OR)3 O

    *SPUR+ is a trademark of Momentive Performance Materials Inc. Copyright 2016 Momentive Performance Materials Inc. All rights reserved.

  • 4

    Weatherability of SPUR+* pre-polymer formulation SPUR+ Pre-polymer can be formulated to give good durability - no Cracks, Chalking, or

    Yellowing observed on extended QUV exposure

    SPUR+ pre-polymer Based Sealant

    Commercial Silicone A Commercial Silicone B

    5500 hours QUV A test cycle

    per ASTM G-53

    4 hr UV Exposure @ 60C 4 hr condensation @ 50C

    Note: Test data. Actual results may vary.

    *SPUR+ is a trademark of Momentive Performance Materials Inc. Copyright 2016 Momentive Performance Materials Inc. All rights reserved.

  • 50% Modulus vs. QUV Exposure Time

    0

    5

    10

    15

    20

    25

    30

    35

    40

    45

    50

    55

    60

    0 500 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000

    Time in QUV, HR

    Mo

    du

    lus @

    50%

    , p

    si

    50% Modulus, psi SPUR+ Sealant

    50% Modulus, psi Silicone A

    50% Modulus, psi Silicone B

    5

    After 5500 hr of QUV-A study SPUR+ pre-

    polymer based formulation showed

    comparable weatherability to a Silicone RTV

    This excellent weatherability suggests SPUR+

    pre-polymer may be a excellent candidate

    resin for applications in building construction,

    including roof coatings

    Hardness vs. QUV Exposure Time

    0

    2

    4

    6

    8

    10

    12

    14

    16

    18

    20

    22

    24

    26

    28

    30

    0 500 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000

    Time in QUV, Hr

    Du

    ro

    mete

    r,

    Sh

    ore A SPUR+ Sealant

    Silicone A

    Silicone B

    Tensile @ Break vs. QUV Exposure Time

    0

    25

    50

    75

    100

    125

    150

    175

    200

    225

    250

    0 500 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000

    Time in QUV (Hr)

    Ten

    sile @

    Bre

    ak, p

    si

    SPUR+ Sealant

    Silicone A

    Silicone B

    *SPUR+ is a trademark of Momentive Performance Materials Inc. Copyright 2016 Momentive Performance Materials Inc. All rights reserved.

    Note: Test data. Actual results may vary.

    Weatherability of SPUR+* pre-polymer formulations SPUR+ Pre-polymer based formulations can provide good durability physical properties

    show minimal change during QUV exposure

  • 6

    Dirt pick-up SPUR+* Pre-polymer based formulations give low dirt pick-up

    Competitive hybrid resin

    based formulation

    *SPUR+ is a trademark of Momentive Performance Materials Inc. Copyright 2016 Momentive Performance Materials Inc. All rights reserved.

    Note: Test data. Actual results may vary.

    SPUR+ Pre-polymer

    based formulation

  • SPUR+* pre-polymer technology fit in Roof Coating formulations

    SPUR+ Y-15990 pre-polymer features of interest in formulating Roof

    Coatings

    SPUR+ Y-15990 pre-polymer Product comparison vs. other commercial

    benchmark chemistries

    Advantages over Silicone Roof Coatings

    Advantages over Acrylic Roof Coatings

    Agenda

    7 *SPUR+ is a trademark of Momentive Performance Materials Inc. Copyright 2016 Momentive Performance Materials Inc. All rights reserved.

  • 8

    Typical Properties of SPUR+* Y-15990 pre-polymer and formulations SPUR+ Y-15990 Pre-polymer enables a broad range of properties

    *SPUR+ is a trademark of Momentive Performance Materials Inc. Copyright 2016 Momentive Performance Materials Inc. All rights reserved.

    SPUR+ Y-15990

    Prepolymer

    SPUR+ Y-15990 pre-

    polymer based Roof

    Coating Formulations

    Viscosity (cP at 25C) ~ 2500 2000 - 10,000

    Active content (%) 100

    Properties of Cured film

    Tensile Strength (psi) ~ 600 200 - 550

    Elongation (%) ~ 200 90 - 330

    Hardness Shore A 40 45 - 60

    Tear resistance (lbs/in) 45 - 68

    Perm/20 mil ~3

    Glass transition temperature oC -55

    Typical properties are average data and are not to be used as or to develop specifications.

  • 9

    Tensile Strength at BK (psi) 392

    Elongations at BK (%) 330

    Hardness Shore A 46

    Weatherability of the roof coatings

    Starting Formulation

    Starting Formulation of SPUR+* Y-15990 pre-polymer Based Roof Coating

    Tensile

    Strength @

    BK (psi)

    Elongation

    (%)

    Hardness

    Shore A

    Heat Resistance test at 80C

    Initial 392 330 46

    1 week after 348 242 45

    3 week after 319 220 45

    QUV-A at 50C (ASTM G 53)

    Initial 392 330 46

    1 week after 348 246 43

    3 week after 363 275 40

    Cold temperature (-20 to -25C)

    Samples placed in the freezer for four hours, they were still

    flexible and bendable

    Mechanical Properties ASTM D412 & C661

    Ingredients (%)

    SPUR+ Y-15990 prepolymer 44.9

    Silquest* A-137 Silane 7.45

    Plasticizer 7.64

    GCC treated (2 m) 34.36

    UV Stablizers 1.52

    TiO2 2.86

    Silquest A-1120 Silane 0.46

    Silquest A-2120 Silane 0.46

    Fomrez catalyst UL-59 (DOT) 0.38

    Total 100 Viscosity of the formulation (cP) ~ 2,000

    *SPUR+ and Silquest are trademarks of Momentive Performance Materials Inc. Fomrez is a trademark of Chemtura Corporation, used with permission by Galata Chemicals LLC. Copyright 2016 Momentive Performance Materials Inc. All rights reserved.

    Note: Test data. Actual results may vary.

    Product formulations are included as illustrative examples only. Momentive makes no

    representation or warranty of any kind with respect to any such formulations, including, without

    limitations, concerning the efficacy or safety of any product manufactured using such

    formulations.

  • 10

    Accelerated weatherability of SPUR+* Y-15990 pre-polymer Based Roof Coatings

    Extended weatherability at a UV stabilizer level as low as 1.5 phr

    Initial image

    *SPUR+ is a trademark of Momentive Performance Materials Inc. Copyright 2016 Momentive Performance Materials Inc. All rights reserved.

    Note: Test data. Actual results may vary.

    UV Stabilizer loading 3 phr 2 phr 1.5 phr

    6 month in QUV-A (water cycle)

    + 3 month in QUV-B, no surface

    cracks

    6 month in QUV-A (water cycle)

    + 6 month in QUV-B No Surface

    Cracks Surface

    Cracks

    Surface

    Cracks

  • 11

    Adhesion to typical Roof/Wall substrates SPUR+* Pre-polymer formulations provide primerless adhesion to multiple substrates when

    used with optimized adhesion promoter package

    Peel adhesion test according to ASTM C794

    lbs failure

    Aged:

    EPDM white 3.6 100% CF

    TPO 2.8 100% CF

    EPDM black 4.5 100% CF

    PVC 4.1 100% CF

    Non-aged

    PU Foam hand pull 100% CF

    Ag

    ed

    TP

    O

    Ag

    ed

    EP

    DM

    bla

    ck

    Ag

    ed

    EP

    DM

    wh

    ite

    PU

    Fo

    am

    Roof Coating Formulation used

    SPUR+ Y-15990 pre-polymer 38.1

    Plasticizer & reactive diluent 6.54

    UV stabilizer 0.65

    GCC untreated 50

    TiO2 1.31

    Silquest* silane package 3.34

    Fomrez catalyst UL-28 0.04

    DBU 0.02

    total 100

    *SPUR+ and Silquest are trademarks of Momentive Performance Materials Inc. Fomrez is a trademark of Chemtura Corporation, used with permission by Galata Chemicals LLC. Copyright 2016 Momentive Performance Materials Inc. All rights reserved.

    Note: Test data. Actual results may vary.

    Product formulations

    are included as

    illustrative examples

    only. Momentive

    makes no

    representation or

    warranty of any kind

    with respect to any

    such formulations,

    including, without

    limitations, concerning

    the efficacy or safety of

    any product

    manufactured using

    such formulations

  • 12

    Select Lab Formulations for Roof Coatings Pre-polymer loading level is a critical lever to dial-in desired properties

    Example

    1 Example

    2 Exampl