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Product Introduction
PCDL is a polycarbonate diol that is ring-opened with polyol and is professionally used in the high-end polyurethane industry.
Compared with general polyester and polyether diols, PCDL shows quite excellent mechanical properties, hydrolysis resistance, weather resistance and solvent resistance. It is widely used in synthetic leather, thermoplastic polyurethane elastomer (TPU), elastic fibers, adhesives, coatings, etc. If there is a special need to improve durability, PCDL will be the best choice.
The breaking strength of polyurethane products made of PCDL is higher than that of polyurethane products made of polytetrahydrofuran ether, hexylene adipate and polycaprolactone polyol, in terms of heat resistance, weather resistance, water resistance and The solvent performance is better than other polyols, but the elongation at break is lower.

Product Specifications

Product number	Molecular weight	Hydroxy value mgKOH/g	Acid value mgKOH/g	viscosity (cP/75℃)	Melting point °C	Normal temperature state
UH- 50	500	<span style="font-f Poor ~ Normal	Good
Weather resistance	bad	Good	Good	Excellent
Softness	Excellent	Good	Good	General
Antibacterial	Excellent	bad	bad	Normal ~ Good

Comparison of mechanical properties of polyurethanes made from various polyols :

Project	PTMG	PHA	PCL	PCDL
Breaking strength (MPa)	66- 72	53- 72	52- 64	76- 83
Elongation at break (% )	920- 1040	860- 920	76- 83	580- 630

Main applications

Artificial leather, synthetic leather, TPU, SPANDEX, adhesives, coatings, etc. Among all the above products, if there is a special need to improve durability, PCDL will be the best choice.

Packaging
200kg/barrel

Origin ：Japan, Spain

n style=”font-size:13.5000pt”>PHA

PCL

PCDL

Breaking strength (MPa)

66- 72

53- 72

52- 64

76- 83

Elongation at break (% )

920- 1040

860- 920

76- 83

580- 630

Main applications

Artificial leather, synthetic leather, TPU, SPANDEX, adhesives, coatings, etc. Among all the above products, if there is a special need to improve durability, PCDL will be the best choice.

Packaging
200kg/barrel

Origin ：Japan, Spain