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PBAT is a thermoplastic biodegradable plastic whose full name is Polybutylene Adipate Terephthalate (copolymer of polybutylene terephthalate and polybutylene adipate). This material combines the properties of polybutylene adipate (PBA) and polybutylene terephthalate (PBT), so it has good ductility and elongation at break, as well as good heat resistance and impact resistance.
The raw materials of PBAT include 1, 4-butanediol (BDO), adipic acid (AA), and terephthalic acid (PTA). It has a semi-crystalline structure with a melting point of about 130 degrees Celsius. Due to its excellent biodegradability, PBAT is widely used in manufacturing disposable items to reduce environmental impact.
| Physical Property | Standard | Value | Unit |
|---|---|---|---|
| Density | ISO 1183 | 1.21 | g/cm³ |
| Melt Index (190°C 2.16kg) | ISO 1133 | 2.5~4.5 | g/10min |
| Moisture Content | - | 0.06 | % |
| Mechanical Behavior | Standard | Value | Unit |
|---|---|---|---|
| Tensile Strength | ISO 527 | 25 | MPa |
| Elongation | ISO 527 | 400 | % |
| Thermal Property | Standard | Value | Unit |
|---|---|---|---|
| Vicat Softening Temp (50°C/hr 10N) | ISO 306 | 80 | °C |
| Melting Temperature | ISO 11357 | 116~122 | °C |
Standard packaging: 25kg/bag in PP woven or PE plastic bags. Approximately 20 tons per 20" container.
