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KH-0 Series: Small Melt Finger

TPEE is a block copolymer composed of polyester hard segments and polyether soft segments. The amorphous regions formed by the polyether soft segments and the non-crystalline polyester, together with the partially crystalline polyester hard segments, act as physical crosslinking points. TPEE combines the elasticity of rubber with the strength of engineering plastics: its soft segments impart elasticity, giving it rubber-like properties, while its hard segments provide processability, endowing it with plastic-like characteristics. Compared to conventional rubbers, TPEE offers superior processability and a longer service life; compared to engineering plastics, it maintains high strength while exhibiting improved flexibility and enhanced dynamic mechanical performance.



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Product Details


General‑Purpose Grade—TPEE Performance Data Sheet and Application Examples

(3) KH-0 Series – Low Melt Index (Extrusion/ Foaming)
TPEE
Model number
Shaw Brothers
Hardness
D
Stretching
Intensity
MPa
Fracture
Elongation
%
Melt Index
(2.16kg)
g/10min
Specific gravity
g/m 3
Melting point
°C
Bend
Modulus
Mpa
Vika Soft
Transformation temperature
°C
Brittleness
Temperature
°C
Volume resistivity
rate
Ohm*cm
Surface charge
Resistivity
Ohm
KH-063 63 45 600 8(230℃) 1.21 212 320 196 ≤-50 8.0E+13 4.0E+15
KH-055 55 37 680 8(220℃) 1.18 203 220 182 ≤-60 4.0E+13 2.0E+15
KH-040 40 21 900 6(230℃) 1.12 198 80 141 ≤-70 6.0E+12 3.0E+14
KH-030 30 16 1000 5(220℃) 1.07 165 40 100 ≤-75 2.0E+12 2.0E+14

Examples of applications for the KH-0 series:

This series exhibits excellent overall performance, with a low melt index and high melt strength, making it suitable for specialized applications such as extrusion and foam molding, as well as other niche uses.

Product Overview

TPEE is a block copolymer composed of polyester hard segments and polyether soft segments. The polyether soft segments and the non-crystalline polyester form an amorphous phase, while the polyester hard segments undergo partial crystallization to create crystalline microdomains that serve as physical crosslinking points. TPEE combines the elasticity of rubber with the strength of engineering plastics: its soft segments impart elasticity, giving it rubber-like properties, while its hard segments provide processability, endowing it with plastic-like characteristics. Compared with conventional rubbers, TPEE offers superior processability and a longer service life; compared with engineering plastics, it maintains high strength while exhibiting improved flexibility and enhanced dynamic mechanical performance.

TPEE is a highly polar polymer material with an water absorption rate of approximately 0.6%. Prior to processing, it is recommended to dry the material: use forced-air drying at 95°C for 2.5 hours.

 

Molecular structural formula of TPEE

Polyester hard segment Polyether soft segment

 

Special properties of TPEE/TPEE 具有的特性

1. High impact strength, excellent high- and low-temperature performance, creep resistance, impact resistance, and fatigue resistance.

2. High flexibility, high tensile strength, and excellent abrasion resistance (with wear resistance comparable to TPU).

3. Excellent rebound performance, strong recovery elasticity, and a high modulus of elasticity (compared to TPU, especially above 50D, its performance is even superior).

4. Excellent oil- and water-resistance, good resistance to chemical solvents, acid- and alkali-resistant, and resistant to thermal and UV aging (more hydrolysis- and chemical-solvent‑resistant than TPU).

5. Naturally white, easy to color, and exhibits excellent dyeability; it crystallizes rapidly (easier to demold and form than TPU), is simple to process and mold, and offers good dimensional stability.

6. A wide range of models is available to meet diverse production and processing requirements, and the material can be recycled and reused multiple times with minimal performance degradation, while being environmentally friendly.

Figure 6. Differences Among Keheng Polymer TPEE Grades

 

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