Pp - Materials - Technical Information

QUICK SITE LINKS

Pp - Materials - Technical Information - Hobby and Engineering

Polypropylene

MBA Products made from this material
Balls

A thermoplastic with lower impact strength but better tensile strength and working temperature than LDPE or HDPE (low and high density polyethylene). Polypropylene is lighter than water, resists many acids and alkalis and has very low moisture absorption.

Disadvantages of polypropylene are high thermal expansion, high creep, poor UV resistance and accelerated oxidative degradation by contact with certain materials.

Properties of Polypropylene

Physical Properties
PROPERTY	UNIT	VALUE
Density	g/cm³	0.905
Surface Hardness	Rockwell R	80-110
Tensile Strength	MPa	34
Flexural Modulus	GPa	1.39
Notched Izod	kJ/m	0.02 to 0.1
Coefficient of friction		0.1 to 0.3
Elongation at Break	%	150-300
Max Operating Temp.	^oC	90-100
Water Absorption	%	0.03
Flammability	UL94	HB
Volume Resistivity	Ohmcm	10¹⁶-10¹⁸
Dielectric Strength	MV/m	30-40
Dissipation Factor	@ 1 MHz	0.0003 - 0.0005
Dielectric Constant	@ 1 MHz	2.2-2.6
Heat Deflection Temp. @ 0.45 MPa	^oC	100-105
Heat Deflection Temp. @ 1.80 MPa	^oC	60-65

Chemical Resistance
Chemical	Resistance
Acids (Concentrated)	Fair-Good
Acids (Dilute)	Fair-Good
Alcohols	Good
Alkalis	Good
Aromatic hydrocarbons	Fair
Greases and Oils	Fair-Good
Halogenated Hydrocarbon	Poor-Good
Halogens	Poor
Ketones	Good

Note! Property values are typical and should be used only as a guide to selection of materials and not as purchase specifications.

You can purchase online at Hobby & Engineering Supplies.

Home

How To Order Online

Mailorder

Newsletter Subscription

Order Specially Quoted Parts

Payment Options

Terms and Conditions of Sale

PRODUCT INFORMATION

Dental Bearings

Hobby Information

Information Sheets

New Products

Surplus Specials Lists

Technical Information

Technical Index

Product Technical Information

Balls	Bearings	Couplings
Pins	Shafting	Timing Belts and Pulleys

Other Technical Information

Basic Information Sheets	Catalogues	Glossary of Technical Terms
Links to Further Information	Materials Information	Measurement Conversions
Skate Bearing FAQ	Technical Information Sheets

Tables and information on this web site should be read as a general guide only. The relevant standards should be consulted to ensure accuracy

There are no further parts to this document.

HES Terms and Conditions of Sale

Site Summary:

Terms and Conditions
Privacy Policy

Hobby and Engineering Supplies offers thousands of products including remote controlled cars, planes, boats, and helicopters. We stock spare parts for remote controlled models. Our range includes the popular Solarbotics solar model kits and spares. We also distribute the full range of miniature engineering products from Miniature Bearings Australia. This range includes small bearings, timing pulleys, timing belts, seals, o-rings, gears and more. Also available from our store in Capalaba Queensland are a full range of lubricants, adhesives, balsa wood and plastic rod and sheet materials. See our Online Catalogue for more information. Our main business is handled from our sales counter and showroom at 3239 Old Cleveland Road Capalaba West, Queensland, Australia, but we also sell by phone, fax, online and mail order. We also offer all of our hobby and engineering parts through our online store.

Using the links at the top of this page you will find extensive information including catalogues (Products and Store link), technical data, and other product specific information.

We also suggest that you may want to take a look at the technical information sites - Shafting Information, Couplings Information and Gearboxes Information.

THE RIGHT MIX OF BUSINESS AND PLEASURE

Click here for OTHER SEARCHES