PPDI, China PPDI, PPDI exporters, China PPDI Suppliers

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Region :Agrochemicals
Tel : +86-578-299-0666
Fax : +86-578-217-6055
Email :2-sales@upchem.com
URL :www.upchem.com

Details for China PPDI

PPDI 104-49-4

Category :

Agrochemicals

CAS NO :

104-49-4

EC NO :

203-207-6

MF :

C₈H₄N₂O₂

MW :

160.1296

Product description :

We are offering the PPDI-based prepolymers and thermoplastic elastomer chips. PPDI (p-polyphenylene diisocyanate) is a structurally symmetric aromatic diisocyanate and is mainly used to produce polyurethane elastomeric products with a tighter hard segment and high-performance properties that conventional polyurethane products could not match. Besides the standard products listed below, we also provide the polyurethane products with specific properties requested by the customers.

PPDI-terminated Prepolymers (with low free PPDI)

Prepolymer	TP1053	TP2052	TP2055	TP1176P
NCO%	3.65-3.90	2.40-2.70	5.45-5.75	6.35-6.65
Viscosity (212 °F, CPS)	500	120	300	350
Color	White	White/Off White	White/Off White	White
Appearance R.T.	Semi-solid	Semi-solid	Semi-solid	Semi-solid

PPDI-based Thermoplastic Polyurethane

PPDI-based thermoplastic polyurethanes are offered as pellets, are readily injection moldable and can

l Perform well where other polyurethane materials fail at the elevated temperatures

l Have high wear-resistance for extended seal life and excellent resistance to compression set

TPU Product	TU-1050A	TU2050A	TU4050
Specific Gravity	1.20	1.22	1.18
Hardness（Shore A）	92	95	85
Bayshore Resilience	60-63%	60%	60%
Ultimate Tensile Strength (psi)	8300	8480	7590
100% Modulus (psi)	1740	1760	1118
300% Modulus (psi)	2900	3060	2175
Elongation @ Break (%)	650	700	850
Compression Set (70 h @ 212° F)	34-37%	36-39%	40-43 %
Operating Temp. Range (°F)	- 54 to 285	-65 to 275	-65 to 275

Drying and Injection Molding Conditions：

1. Drying conditions: 80-95 °C in a forced air oven for 4-6 hours

2. Setting for Injection Molding

Tip/°C

Middle/°C

Front/°C

Range

Suggested Setting

200 – 220

210

200 – 218

205

200 – 218

200

Synonyms :

PPDI;4,4'-phenyl isocyanate;Benzene 1,4-Diisocyanate;1,4-Phenylene Diisocyanate;1,4-Benzenediisocyanate;1,4-diisocyanato-benzen;1,4-Diisocyanatobenzene;1,4-diisocyanato-Benzene;benzene, 1,4-diisocyanato-;Isocyanic acid, p-phenylene ester;isocyanicacid,p-phenyleneester;Phenylene-1,4-diisocyanate;p-Phenylene isocyanate;p-phenyleneisocyanate;1,4-diisocyanatobenzene;p-Phenyl Diisocyanate;

Molecular Structure :

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