Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Properties of Rigid Cellular Plastics

Compressive Properties of Rigid Cellular Plastics ASTM D 3574 - Test A (for flexible cellular materials). This test is similar to ASTM D 1622, except that it uses the terms section density and interior density for apparent overall density and apparent core density, respectively- [Pg.382]

W = weight in lb L = length in inches W = width in inches T = thickness in inches [Pg.383]

ASTM D 1621-73 (1979) Standard Test Method for Compressive Properties of Rigid Cellular Plastics, 4 pp (DOD Adopted) (FSC 9330) (MR) (Comm D-20)... [Pg.409]

M.R. Patel and I. Finnie, Structural features and mechanical properties of rigid cellular plastics, /. Mater., 5, 909, 1970. [Pg.141]

ASTM D. 1621-94. Compressive properties of rigid cellular plastics. [Pg.404]

The test of tensile strength is according to Test method for tensile properties of rigid cellular plastics (GB 9641-88). [Pg.295]

Cell size and cell orientation are very important since several physical properties of rigid cellular plastics depend upon them. For example, determining the water absorption and open-cell content requires knowledge of surface cell volume, which uses cell size values in the calculations. [Pg.310]

D1621 Compressive Properties of Rigid Cellular Plastics 844... [Pg.493]

ASTM D 1623 is used for tensUe and tensile adhesion voperties of rigid cellular plastics. The vocedure is essentially similar to that of ASTM D 3574 described above. Three types of specimens are used -Type A, where adequate material is avaUable, type B, where only smaller specimens are avaUable, as in sandwich panels, and Type C, which covers tensile adhesion properties of a cellular plastic to a substrate, as in a sandwich panel, or the bonding strength of a ceUular plastic to a single substrate. [Pg.387]

Prociak [27] studied the effect of parameters such as the method of sample preparation, the temperature gradient and the average temperature of measurement on the thermal conductivity of rigid PU foams blown with hydrocarbons and hydrofluorocarbons (HFC). The thermal insulation properties of different cellular plastics, such as rigid and flexible PU foams and expanded PS, were compared. The thermal conductivity and thermal diffusivity of foams were correlated with the PU matrix structure to demonstrate the effect of cell anisotropy on the thermal insulation properties of the rigid foams blown with cyclopentane and HFC-365/227 (93 wt% pentafluorobutane/7wt% heptafluoropropane). [Pg.64]

ISO 1926 1979 Cellular plastics - Determination of tensile properties of rigid materials ISO 4587 2003 Adhesives - Determination of tensile lap-shear strength of rigid-to-rigid... [Pg.172]

ISO 844 2001 Rigid cellular plastics - Determination of compression properties ISO 3386-1 1986 Polymeric materials, cellular flexible - Determination of stress-strain characteristics in compression - Part 1 Low-density materials ISO 3386-2 1997 Flexible cellular polymeric materials - Determination of stress-strain characteristics in compression - Part 2 High-density materials ISO 5893 2002 Rubber and plastics test equipment - Tensile, flexural and compression types (constant rate of traverse) - Specification ISO 7743 2004 Rubber, vulcanized or thermoplastic - Determination of compression stress-strain properties... [Pg.173]

ISO 1663 1999 Rigid cellular plastics - Determination of water vapour transmission properties ISO 2556 1974 Plastics - Determination of the gas transmission rate of films and thin sheets under atmospheric pressure - Manometric method ISO 6179 1998 Rubber, vulcanized or thermoplastic - Rubber sheets and rubber-coated fabrics - Determination of transmission rate of volatile liquids (gravimetric technique)... [Pg.178]

PEs provide many unusual properties to the cellular plastics industry. These foams are tough, flexible and chemical and abrasion resistant. They are known to have superior electrical and thermal insulation properties. Their mechanical properties are intermediate between rigid and highly flexible foams. Densities are 2 lb/ft3 and higher, approaching that of the solid plastics. The highly expanded polyolefin foams are potentially the least expensive of the cellular plastics. However, they require expensive processing techniques and for this... [Pg.347]

Frisch, K.C., "Relationship of Chemical Structure and Properties of Rigid Urethane Foams," Journal of Cellular Plastics, 1(2) 325-330 (April 1965). [Pg.312]

Bauer, A.W., "Relationships between Blowing Agents in and Physical Properties of Rigid Polyurethane Foams," Wayne State University (Detroit) - Polymer Conference Series - Cellular Plastics, Lecture Notes, (May 24-28, 1965). [Pg.312]

ISO 1926-79 Cellular Plastics —Determination of Tensile Properties of Rigid Materials, 4 pp... [Pg.449]

ISO 1926. Cellular plastics Determination of ten.sile properties of rigid materials. 1979. [Pg.404]

ISO 1663 1999 Rigid cellular plastics - Determination of water vapour transmission properties... [Pg.95]

Piechota, H. 5ome correlations between raw materials, formulation, and flame retardant properties of rigid urethane foams. Journal of Cellular Plastics, 1(1), 186-199 (1965). [Pg.421]

D 3713 MEASURING RESPONSE TO SMALL FLAME IGNITION D 3748 EVALUATING HD RIGID CELLULAR PLASTICS D 3810 EXTINGUISHING CHARACTERISTICS-VERT POSITION D 3835 RHEOLOGICAL PROPERTIES/CAPILLARY RHEOMTR D 3846 IN PLANE SHEAR OF REINFORCED PLASTICS D 3895 COPPER INDUCED OXIDATIVE INDUCTION BY DSC D 3914 IN PLANE SHEAR OF RODS D 3916 TENSILE OF PLASTIC ROD... [Pg.620]

The test methods developed for testing flexible cellular plastics are quite different from those developed for rigid foams. For rigid cellular plastics, separate test methods were developed for specific properties. No such separate test methods relating to specific properties are developed for flexible cellular plastics. Instead, a series of test procedures that describe a variety of physical properties of a particular type of material are commonly used to test flexible cellular plastics. [Pg.318]

ISO 178 2004 Plastics - Determination of flexural properties ISO 1209-1 1990 Cellular plastics, rigid - Flexural tests - Part 1 Bending test ISO 1209-2 1990 Cellular plastics, rigid - Flexural tests - Part 2 Determination of flexural properties... [Pg.172]

Foamed plastics can be classified in different ways, for instance by their nature (flexible vs. rigid), chemical composition of the matrix, density, cell size, cell structure (open-celled vs. closed-celled), processing method, and dimensions. It is the aimed combination of these properties that determines the final application of the cellular polymer. As an example, open-celled ultra-low density foams are highly desirable for acoustical insulation, while rigid foams with closed-cells and elevated densities are preferred as load-carrying core materials in composite materials. [Pg.201]

This chapter is aimed at expanding upon the listings of standard test methods presented in the following Chapter 11 on Standardization Documents. The first section of the chapter lists 130 properties of cellular plastics and elastomers and tabulates the standard test methods (U.S., ISO and British Standards) known to be applicable to each. Only number designations are given. The reader will find the titles and complete citations for the standards in Chapter 11. A key to the symbols used is given to indicate the type of cellular materials used (flexible or rigid) and a number of other matters of interest. [Pg.354]

ISO 1209 2. Cellular plastics, rigid-flexural tests Part 2. Determination of flexural properties. 1990. [Pg.404]

See other pages where Properties of Rigid Cellular Plastics is mentioned: [Pg.167]    [Pg.167]    [Pg.617]    [Pg.312]    [Pg.412]    [Pg.665]    [Pg.229]    [Pg.501]    [Pg.1043]    [Pg.1055]    [Pg.309]    [Pg.237]    [Pg.216]    [Pg.438]    [Pg.497]    [Pg.76]   


SEARCH



Plastics cellular

Plastics rigid

Properties, of plastics

© 2024 chempedia.info