Polycarbonate diol PCDL

Japan UBE Polycarbonate Diol PCDL UH Series UH100 UH200

Product introduction
PCDL is a polycarbonate diol ring-opened with a polyol, which is specialized in the high-grade polyurethane industry.
Compared with general polyester and polyether diols, PCDL exhibits excellent mechanical properties, hydrolysis resistance, weather resistance and solvent resistance. Widely used in synthetic leather, thermoplastic polyurethane elastomer (TPU), elastic fibers, adhesives, coatings, etc. If you 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 glycol adipate and polycaprolactone polyol, in terms of heat resistance, weather resistance, water resistance and resistance. Solvent performance is better than other polyols, but the elongation at break is lower.

Product Specifications

Product grade	molecular weight	Hydroxyl value mgKOH/g	Acid value mgKOH/g	Viscosity (cP/75℃)	Melting point °C	normal temperature
UH-50	500	224±20	<0.1	100±10	33±5	solid state
UH-100	1000	110±10	<0.1	410±50	45±5	solid state
UH-200	2000	56±5	<0.1	2200±200	50±3	solid state
UH-300	3000	37±3	<0.1	6000±1000	52±3	solid state

Comparison of the basic properties of polyurethanes made with various polyols ：

project	PTMG	PHA	PCL	PCDL
heat resistance	poor	good	good	excellent
water resistance	good	poor	poor	excellent
oleic acid resistance	poor	average	poor ~ poor	good
Weather resistance	poor	good	good	excellent
softness	excellent	good	good	poor
Antibacterial	excellent	poor	poor	poor ~ good

Comparison of the basic properties of polyurethanes made with 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 application

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

Package

200kg/drum

Origin ：Japan, Spain