PBAT

English Name:PBAT

Molecular Formula:C₂₀H₃₀O₁₀                         
Molecular Weight：430.45
CAS Registry Number：55231-08-8

Uses: PBAT Biodegradable poly(butylene adipate terephthalate) is a petroleum-based biodegradable plastic that stands out as one of the most dynamically researched and commercially successful materials in the field of biodegradable plastics. It serves as a critical solution globally for combating white pollution and functions as an ideal partner when blending with other fully biodegradable materials for modification purposes. PBAT can be processed in various forms such as injection molding, extrusion and blow molding, which is widely used in the production of sheet materials, disposable tableware, agricultural mulching films, 3D printing materials, clothing, packaging and foaming materials. With appropriate modifications, it can also be utilized in specialized fields such as medical devices, optoelectronic chemistry, and fine chemicals.


 
Quality Standards: Compliant with GB/T 32366-2025 “Biodegradable poly(butylene adipate terephthalate) (PBAT)”.(China National Standards)
 

NO.	Item		Grade
			Extrusion film	Mulching film	Curtain coating	Injection molding	Foaming
1	Density(25 ℃）/(g/cm3)		1.24±0.04	1.24±0.04	1.24±0.04	1.24±0.04	1.24±0.04
2	Water Content/%		≤0.08
3	Melting point(Tpm)/℃		115~122	110~125	115~122
5	Melt mass flow rate(190 ℃，2.16 kg)/(g/10 min)		3~8	3~8	>8	—	≤3.5
6	Color Value	L VALUE	≥70	≥70	—	≥70	≥70
7		A VALUE	≤5	≤5	—	≤5	≤5
8		B VALUE	≤10	≤10	—	≤10	≤10
9	tensile stress at break/MPa		≥15	≥15	≥15	≥15	≥15
10	Tensile fracture strain/%		≥500	≥500	≥500	≥500	≥500
11	ash content/%		≤0.1	≤0.1	≤0.1	≤0.1	≤0.1
12	carboxyl group content/(mol/t)		≤20	≤20	≤30	≤30	≤30
13	Terephthalic acid composition ratio/mol%		≤48.5
14	Fisheyes (Crystal point)(0.3 mm~2.0 mm)/ (个/1 m2)		≤20	≤20	—	—	—
15	Fisheyes (Crystal point)  (≥2.0 mm)/(个/1 m2)		mustn’t have	m ustn’t have	—	—	—
16	Melt expansion ratio		—	—	1.2±0.3	—	—
17	Simply supported beam notched impact strength /(kJ/m2)		—	—	—	≥20	—
Note: The performance indicators and test methods for products not listed in the table shall be determined through consultation among all parties.