KH-TK Series
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.
Keywords
Product Details
Polymeric Permanent Antistatic – Non‑Exuding – TPEE Masterbatch – Performance Data Sheet and Application Examples
| 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 |
Surface resistivity of masterbatch Ohm |
| KH-TK155B | 55D | 31 | 750 | 21/220℃ | 1.18 | 202 | 200 | 175 | ≤-65 | 8.5*10 5 |
| KH-TK140B | 40D | 22 | 880 | 16/220℃ | 1.12 | 196 | 70 | 135 | ≤-70 | 8*10 5 |
| KH-TK136B | 36D | 17 | 920 | 21/220℃ | 1.10 | 190 | 50 | 130 | ≤-75 | 7.4*10 5 |
| KH-TK123B | 32D | 14 | 930 | 21/220℃ | 1.08 | 182 | 30 | 123 | ≤-77 | 7*10 5 |
Examples of applications for the KH-TK series:
The KH‑TK series comprises antistatic masterbatches based on a high‑performance polymer: thermoplastic polyester elastomer (TPEE), and features the following characteristics:
(1) The color is off-white, does not affect the base color, and is easy to match.
(2) Excellent weather resistance and outstanding thermal stability, with long-term performance spanning -70 to 130°C; moreover, it remains stable and does not discolor during screw extrusion at temperatures between 190°C and 280°C.
(3) Exhibits excellent compatibility with ABS, PETG, PCTG, PBT, PET, TPEE, PS, TPU, TPE, TPV, POM, PVC, and other materials. When added at a ratio of 15%–25%, it can achieve a surface resistivity as low as 10⁹–10⁷ Ω·cm, remaining stable over time without degradation or leaching. Post‑addition, it enhances the material’s elongation at break, low‑temperature performance, impact resistance, and resilience, while preserving all other properties. Offering exceptional cost‑effectiveness, it is widely used in electronic packaging, textiles, power tools, functional films, and everyday consumer goods.
| Application-related parameters | |||
| Types of applications | TPEE masterbatch grade | Masterbatch addition amount | Surface resistivity |
| ABS (417 or 747) | KH-TK136B | 15% | 6*10 8 |
| ABS (417 or 747) | KH-TK136B | 20% | 1*10 8 |
| ABS (417 or 747) | KH-TK136B | 25% | 6*10 7 |
| P.S. | KH-TK136B | 23% | 1*10 8 |
| PETG (SK) | KH-TK136B | 20% | 5*10 8 |
Product Overview
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, serve as physical crosslinking points. TPEE combines the elasticity of rubber with the strength of engineering plastics: the soft segments impart elasticity, giving it rubber-like properties, while the 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.
TPEE is a highly polar polymer 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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