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PPDI

PPDI

Category :

Agrochemicals

CAS NO : 104-49-4
EC NO : 203-207-6
Molecular Formula : C8H4N2O2
Main Specifications :
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;
PPDI
Molecular Structure:PPDI 104-49-4
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

HardnessShore 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

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Contact us
Company:
   Upchem(China) Co., Ltd.
Contact:
  
Phone:
+86-578-299-0666
Mobile phone:
Fax:
+86-578-217-6055
E-mail:
2-sales@upchem.com
Website:
http://www.upchem.com
Address:
Lugu Ave.339#, Lishui economic development zone,Lishui City, Zhejiang, China
Zip Code:
323000
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