KH-TS Series Medium/High Moisture-Permeable TPEE
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
Waterborne – Medium/High – Moisture-Permeable TPEE: Performance Characteristics and Application Examples
| KH-TS Series | |||||||||||
| 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 |
24-hour water absorption rate % (mass increase %) Room-temperature water bath |
|
| KH-TS155 | 55 | 34 | 700 | 16/220℃ | 1.18 | 203 | 220 | 182 | ≤-60 | 20 | |
| KH-TS145 | 45 | 26 | 850 | 16/220℃ | 1.15 | 201 | 100 | 157 | ≤-65 | 47 | |
| KH-TS140 | 40 | 22 | 900 | 16/220℃ | 1.12 | 197 | 80 | 140 | ≤-70 | 68 | |
| KH-TS240 | 40 | 22 | 880 | 21/220℃ | 1.12 | 197 | 80 | 140 | ≤-70 | 68 | |
| KH-TS136 | 36 | 18 | 930 | 16/220℃ | 1.10 | 190 | 55 | 133 | ≤-70 | 90 | |
Examples of applications for the KH-TS series medium/high‑moisture‑permeable TPEE:
It exhibits strong hydrophilicity, high moisture vapor transmission while resisting liquid water, withstands low temperatures down to −75°C and high temperatures up to 150°C, boasts excellent tensile strength and outstanding aging resistance, and can be processed into textiles, specialized film products, and medical tubing. It provides waterproof, antibacterial, and antiviral protection while facilitating sweat wicking and high moisture permeability, making it widely used in medical protective apparel, waterproof hiking boots and garments, softshell jackets, medical ventilator tubing, and other specialized applications.
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 mold than TPU), is simple to process and form, 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, making it environmentally friendly.
Figure 6. Differences Among Keheng Polymer TPEE Grades
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