• TPU
  • TPU
  • TPU
  • TPU
  • TPU
TPU
TPU
TPU
TPU
TPU
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TPU

Used either as a malleable engineering plastic or as a replacement for rubber, TPU is renowned for many things including: its high elongation and tensile strength, its elasticity and to varying degrees, its ability to resist oil, solvents, chemicals and abrasion. These characteristics make TPU extremely popular across a range of markets and applications.

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Current Product Classification

Products

Adhesive Industry

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  • 产品描述

  • Used either as a malleable engineering plastic or as a replacement for rubber, TPU is renowned for many things including: its high elongation and tensile strength, its elasticity and to varying degrees, its ability to resist oil, solvents, chemicals and abrasion. These characteristics make TPU extremely popular across a range of markets and applications.
    Adhesive series have fewer grades, and the naming is relatively simple:
    SDT series:  for solvent adhesives
    SDH series:  for hot melt adhesives.

     

    SDT series : For solvent adhesive
    Introduction
    SDT seriesTPU is polyester-based TPU for solvent adhesives, supplied in form of white pellets, with the characteristic of wide viscosity range, fast crystallization rate, and good adhesion strength to PVC, PU, fabric and genuine leather. Good solubility in acetone, methyl ethyl ketone (MEK), ethyl acetate, THF, DMF or the mixtures, not soluble in aliphatic olefins and ethanol. Enough stirring whendissolving can decrease the dissolution time dramatically.

     

    Applications
    Footwear, furniture and fabric coatings, etc.


    Specifications

    Items

    Test Methods

    Units

    Grade

    SDT6006

    SDT6010

    SDT6020

    SDT6030

    Solution viscosity (15% in MEK, 25ºC)

    GB/T22235

    mPa·s

    300~800

    800~1500

    1500~2200

    2200~3600

    Density

    ASTMD 792

    g/cm3

    1.19±0.02

    1.20±0.02

    1.20±0.02

    1.20±0.02

    Tensile strength

    ASTMD 412

    MPa

    30-40

    32-43

    35-45

    35-45

    Crystallization rate

    GB/T16582

     

    Fast

    Fast

    Fast

    Fast

    Optimum heat activation temperature

    EN 12961

    ºC

    55~65

    55~65

    55~65

    55~65

     

    Items

    Test Methods

    Units

    Grade

    SDT406

    SDT410

    SDT420

    SDT430

    Solution viscosity (15% in MEK, 25ºC)

    GB/T22235

    mPa·s

    200~800

    800~1500

    1500~2500

    2500~3600

    Density

    ASTM D 792

    g/cm3

    1.16±0.02

    1.16±0.02

    1.16±0.02

    1.16±0.02

    Tensile strength

    ASTM D 412

    MPa

    25-35

    25-35

    25-35

    25-35

    Crystallization rate

    GB/T16582

     

    Very Fast

    Very Fast

    Very Fast

    Very Fast

    Optimumheatactivation
    temperature

    EN 12961

    ºC

    55~65

    55~65

    55~65

    55~65

     

     

    SDH series :For hot melt adhesive
    Introduction
    SDH seriesis a special kind of linear TPU elastomer, designed for TPU hotmelt film. Exhibits good toughness, wear resistance, elasticity and excellent bonding strength for TPU, PVC, Nylon, Polyester, fabrics, leather etc. 

     

    Applications
    Toe-puffs＆ counters, hot-melt adhesive films and tapes, fabric coatings, seam sealing tapes, shoe materials etc, high-end interlining, heat transfer printing industry, textile, etc.


    Specifications

    Items

    Test Methods

    Units

    Grade

    SDH390

    SDH670

    SDH780

    SDH790

    Density

    ASTM D 792

    g/cm3

    1.20±0.02

    1.20±0.02

    1.20±0.02

    1.20±0.02

    Hardness

    ASTM D2240

    Shore A

    93-97

    73-77

    78-82

    88-92

    Tensile Strength

    ASTM D412

    MPa

    18-25

    12-18

    16-24

    35-45

    Elongation at Break

    ASTM D412

    %

    550-850

    450-750

    400-650

    350-550

    Tear Strength

    ASTM D624

    KN/m

    100-140

    ——

    ——

    90-130

    Tg

    DSC

    ℃

    ——

    -32

    -30

    -15

    Tm

    DSC

    ℃

    ——

    110

    ——

    135

    MFR(150°C, 2.16kg)

    ASTM D1238c

    g/10min

    25

    ——

    6

    ——

    R&B softening point

    GBT15332

    ℃

    76-83

    127-133

    ——

    150-160

    Crystallization rate

    GB/T16582

    ——

    Very Fast

    Slow

    ——

    Fast

    Tack-free time

    GBT13477.5

    min

    3-4

    8

    6

    2