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Polypropylene

Product Name
Polypropylene
CAS No.
9003-07-0
Chemical Name
Polypropylene
Synonyms
RPP;mh4;pp4;dlp;hf20;j400;j700;k300;mfr4;mm2a
CBNumber
CB8366058
Molecular Formula
C22H42O3
Formula Weight
354.56708
MOL File
9003-07-0.mol
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Polypropylene Property

Melting point:
189 °C(lit.)
Boiling point:
120-132 °C
Density 
0.9 g/mL at 25 °C(lit.)
refractive index 
n20/D 1.49(lit.)
storage temp. 
?20°C
form 
particles (Spherical)
Merck 
13,7663
NIST Chemistry Reference
Polypropylene, atactic(9003-07-0)
IARC
3 (Vol. 19, Sup 7) 1987
EPA Substance Registry System
Polypropylene (9003-07-0)
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Safety

WGK Germany 
3
RTECS 
UD1842000
TSCA 
Yes
HS Code 
39021000
Hazardous Substances Data
9003-07-0(Hazardous Substances Data)
Toxicity
LD50 intraperitoneal in rat: > 110gm/kg
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Hazard and Precautionary Statements (GHS)

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
427861
Product name
Polypropylene
Purity
Isotactic, average Mw ~340,000, average Mn ~97,000
Packaging
1kg
Price
$55.9
Updated
2020/08/18
Sigma-Aldrich
Product number
1311306
Product name
Homopolymer Polypropylene
Purity
United States Pharmacopeia (USP) Reference Standard
Packaging
3strips
Price
$399
Updated
2020/08/18
Alfa Aesar
Product number
045196
Product name
Polypropylene sheet, 3.18mm (0.125in) thick
Packaging
300x300mm
Price
$29.8
Updated
2020/06/24
Alfa Aesar
Product number
045174
Product name
Polypropylene sheet, 6.36mm (0.25in) thick
Packaging
300x300mm
Price
$29.8
Updated
2020/06/24
Sigma-Aldrich
Product number
428116
Product name
Polypropylene
Purity
Isotactic, average Mw ~12,000, average Mn ~5,000
Packaging
250g
Price
$48.2
Updated
2020/08/18
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Polypropylene Chemical Properties,Usage,Production

Chemical Properties

Translucent, white solid.Tensile strength 5000 psi, flexural strength 7000 psi, usable up to 121C. Insoluble in cold organic solvents; softened by hot solvents. Maintains strength after repeated flexing. Degraded by heat and light unless protected by antioxidants. Readily colored; good electrical resistance; low water absorption and moisture permeability; poor impact strength below ?9.4C; not attacked by fungi or bacteria; resists strong acids and alkalies up to 60C, but is attacked by chlorine, fuming nitric acid, and other strong oxidizing agents. Combustible, but slow-burning. Fair abrasion and good heat resis- tance if properly modified. Can be chrome-plated, injectionand blow-molded, and extruded.

Chemical Properties

Polypropylene is a low-density resin that offers a good balance of thermal, chemical, and electrical properties, along with moderate strength. Strength can be significantly increased by using reinforcing agents such as glass fiber. Polypropylene has limited heat resistance, but it can be used in applications that must withstand boiling water or steam sterilization.
Polypropylenes can resist chemical attack and are unaffected by aqueous solutions of inorganic salts or mineral acids and bases, even at high temperatures. They are not attacked by most organic chemicals, and there is no solvent for these resins at room temperature. The resins are attacked, however, by halogens, fuming nitric acid, other active oxidizing agents, and by aromatic and chlorinated hydrocarbons at high temperatures .
Polypropylene is translucent and autoclavable. Properties can be improved by compounding with fillers, by blending with synthetic elastomers, and by copolymerizing with small amounts of other monomers.

Uses

Polypropylene (PP) is a thermoplastic material used in a wide variety of applications including packaging, labeling, textiles, etc. Due to high processability and low cost, PP is one of the most extensively produced polymers, especially, for auto industry. Pristine PP is resistant to photo-oxidation and thermal oxidation at moderate temperatures. However, PP is sensitive to various external aging environments (such as heat, light, and radiation), and, hence, has a relatively low service temperature.When PP is exposed to high temperatures or to an irradiation environment, the tertiary hydrogen atoms present in PP chains are susceptible to be attacked by oxygen. It is well known that PP oxidation depends on both light and temperature in outdoor aging conditions. PP can also be photo-degraded because several molecular chains are affected in the wavelength range from 310 to 350 nm.

Uses

Used with ram- and screw-injection machines. For automotive, housewares, general molding products and multi- and monofiliment fiber.

Uses

General extrusion grade polymer.

Uses

Base polymer in hot melt adhesives and paper-laminating, extender and viscosity modifier in caulks and sealants and waterproofing agent in wire and cable applications.

Uses

Modifier for waxes to reduce blocking, scuffing and abrasion. Improves pigment dispersion in polypropylene films and fibers.

Definition

ChEBI: A polymer compose of repeating propane-1,2-diyl units.

Definition

polypropylene: Anisotactic polymer existing in bothlow and high formula-weight forms.The lower-formula-weight polymer ismade by passing propene at moderatepressure over a heated phosphoricacid catalyst spread on aninert material at 200°C. The reactionyields the trimer and tetramer. Thehigher-formula-weight polymer isproduced by passing propene into aninert solvent, heptane, which containsa trialkyl aluminium and a titaniumcompound. The product is amixture of isotactic and atacticpolypropene, the former being themajor constituent. Polypropene isused as a thermoplastic mouldingmaterial.

Production Methods

In PP production, propylene monomer is polymerized to make the homopolymer by using a Ziegler–Natta type coordination catalyst. This catalyst results from the reaction and interaction of a transition metal compound and an organometallic compound, usually an alkylaluminum compound. Halide atoms are involved in most such catalyst systems .
Polypropylene can be made by solution, slurry (or solvent), bulk (or liquid propylene), or gas-phase polymerization, or a combination of these processes . The most widely used is the slurry process; however, the current trend is toward the gas-phase process. In the solution, slurry, and bulk processes, the catalyst system is mixed with propylene and a hydrocarbon diluent (usually hexane, heptane, or liquid propylene) in a reactor. After polymerization, the reaction mixture enters a flash tank where unreacted propylene is removed and recycled. Propylene–ethylene copolymers [9010-79-1] can be manufactured when ethylene is fed along with propylene to the polymerization reactor or by adding ethylene and propylene to a postpolymerization reactor that contains PP. This mixture may then be purified to remove lowmolecular weight and atactic fractions and washed to remove catalyst residues. The polypropylene resin is then dried and pelletized. During this time, additivesmay be incorporated in the gas-phase process; no liquid diluent is used .

General Description

Tan to white odorless solid. Less dense than water and insoluble in water. Hence floats on water.

Air & Water Reactions

Insoluble in water.

Reactivity Profile

Polypropylene reacts with chlorine, fuming nitric acid and other strong oxidizing agents.

Hazard

Questionable carcinogen.

Health Hazard

No apparent toxicity

Industrial uses

Polypropylene is similar in structure to polyethylene,but every other carbon atom has oneof its H2 atoms replaced by a CH2group.Although electrically similar to polyethylene,polypropylene can be made in thinner films, say 5μm as against about 25 μm for polyethylene.These films replace paper for impregnatedcapacitors, with reduced loss.

Safety Profile

Moderately toxic by ingestion and intraperitoneal routes. Questionable carcinogen. When heated to decomposition it emits acrid smoke and irritating fumes. Used in injection molding for auto parts, in bottle caps, and in container closures.

Carcinogenicity

No data on the carcinogenicity and mutagenicity of propylene are available for evaluation by the working group.

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Polypropylene Suppliers

Shanghai Zhongjun Chemical Co., Ltd.
Tel
Email
2799011605@qq.com
Country
China
ProdList
155
Advantage
58
Alfa Aesar
Tel
400-610-6006; 021-67582000
Fax
021-67582001/03/05
Email
saleschina@alfa-asia.com
Country
China
ProdList
30163
Advantage
84
BeiJing Hwrk Chemicals Limted
Tel
0757-86311057-
Fax
0757-86311057
Email
kennyrong@hwrkchemical.com
Country
China
ProdList
18708
Advantage
55
Winchem Industrial Co. Ltd
Tel
0574-83851061;0574-87083208
Fax
86-574-87083209
Email
info@win-chemical.com;info@win-chemical.com
Country
China
ProdList
500
Advantage
55
Chengdu XiYa Chemical Technology Co., Ltd.
Tel
;
Fax
0539-6365991
Email
sale@xiyashiji.com;3007716753@qq.com
Country
China
ProdList
10576
Advantage
57
Tianjin heowns Biochemical Technology Co., Ltd.
Tel
400 638 7771
Email
sales@heowns.com
Country
China
ProdList
14460
Advantage
57
Sinopharm Chemical Reagent Co,Ltd.
Tel
86-21-63210123
Fax
86-21-63290778 86-21-63218885
Email
sj_scrc@sinopharm.com
Country
China
ProdList
9848
Advantage
79
BOC Sciences
Email
info@bocsci.com
Country
United States
ProdList
9983
Advantage
65
ShangHai YuanYe Biotechnology Co., Ltd.
Tel
021-61312847-
Fax
021-55068248
Email
3008007399@qq.com
Country
China
ProdList
4995
Advantage
60
Beijing HuaMeiHuLiBiological Chemical
Tel
010-56205725;010-86181995
Fax
010-65763397
Email
waley188@sohu.com
Country
China
ProdList
12341
Advantage
58
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View Lastest Price from Polypropylene manufacturers

Shaanxi Dideu Medichem Co. Ltd
Product
Polypropylene 9003-07-0
Price
US $1.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
20T
Release date
2020-04-23
QINGDAO JADE NEW MATERIAL TECNOLOGY CO.,LTD
Product
light stabilizer 3853PP5 9003-07-0
Price
US $0.00/KG
Min. Order
25KG
Purity
98%
Supply Ability
20 tons
Release date
2019-10-11
career henan chemical co
Product
Polypropylene 9003-07-0
Price
US $2.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
ask
Release date
2018-12-22

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