Rubbers ethylene-propylene-diene terpolymer

Initial materials of this super-tough type were blends of nylon 66 with an ionomer resin (see Chapter 11). More recent materials are understood to be blends of nylon 66 with a modified ethylene-propylene-diene terpolymer rubber (EPDM rubber—also see Chapter 11). One such modification involves treatment of the rubber with maleic anhydride, this reacting by a Diels—Alder or other... [Pg.504]

Plant 000027 produces polyisoprene crumb rubber [4.5 x 10" kkg/year (1.0 x 10 lb/ year)] polybutadiene crumb rubber, and ethylene-propylene-diene-terpolymer rubber [EPDM ... [Pg.566]

Moseman, M. and Ingham, J.D., Smoke properties of highly filled ethylene-propylene-diene terpolymer rubbers, Rubber Chem. Technol., 51, 970, 1978. [Pg.183]

A significant development is the appearance of supertough nylon plastics, which are blends in nylon-6,6 with other resins, such as an ionomer resin used in the initial grades or a modified ethylene-propylene-diene terpolymer rubber (EPDM rubber) used in later grades. [Pg.459]

P.V. Anil Kumar, S. Anil Kumar, K.T. Varughese, S. Thomas, Permeation of chlorinated hydrocarbon vapors through high density polyethylene/ethylene propylene diene terpolymer rubber blends. Sep. Sci. Technol. 47, 811-818 (2012)... [Pg.153]

Martinez-Barrera, G., Lopez, H., Castano, V. M., Rodriguez, R., Studies on the rubber phase stability in gamma irradiated polystyrene-SBR blends by using FT-IR and Raman spectroscopy. Radiation Physics and Chemistry 2004,69,155-162. Abou Zeid, M. M., Rabie, S. T., Nada, A. A., Khalil, A. M., Hilal, R. H., Effect of gamma irradiation on ethylene propylene diene terpolymer rubber composites. Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms 2008,266,111-116. [Pg.299]

P. V. A. Kumar, K. T. Varughese and S. Thomas, Effect of Rubber — Filler Interaction on Transport of Aromatic Liquids through High Density Polyethylene/Ethylene Propylene Diene Terpolymer Rubber Blends, Industrial Engineering Chemistry Research, 2012, 51, 6697. [Pg.822]

EPDM ethylene - propylene diene terpolymer rubber... [Pg.159]

Krishen [119] has described a procedure for the determination of these monomer units. He quantitatively analysed the gaseous pyrolysis products from natural rubber, styrene-butadiene rubber and ethylene-propylene diene terpolymer rubber by gas chromatography. He showed that the 2-methyl-2-butene peak was linear with the natural rubber content of the sample. Styrene-butadiene rubber was determined from the peak area of the 1,3-butadiene peak. The ethylene-propylene-terpolymer content was deducted from the 1-pentane peak area of the pyrolysis products. Some of the pyrolysis products identified are shown in Table 4.10. [Pg.263]

The most prevalent approach to achieve long-lasting and nonstaining ozone protection of rubber compounds is to use an inherently ozone-resistant, saturated backbone polymer in blends with a diene rubber. The ozone-resistant polymer must be used in sufficient concentration (minimum 25 phr) and must also be sufficiently dispersed to form domains that effectively block the continuous propagation of an ozone-initiated crack through the diene rubber phase within the compound. Elastomers such as ethylene-propylene-diene terpolymers, halogenated butyl mbbers, or brominated isobutylene-co-para-methylstyrene elastomers have been proposed in combination with NR and/or butadiene rubber. [Pg.483]

Polymer International 51,No.7, July 2002, p.601-6 PHYSICAL STUDIES OF FOAMED REINFORCED RUBBER COMPOSITES. PART I. MECHANICAL PROPERTIES OF FOAMED ETHYLENE-PROPYLENE-DIENE TERPOLYMER AND NITRILE-BUTADIENE RUBBER COMPOSITES... [Pg.36]

MORPHOLOGY AND PHYSICAL PROPERTIES OF CLOSED CELL MICROCELLULAR ETHYLENE-PROPYLENE-DIENE TERPOLYMER(EPDM) RUBBER VULCANISATES - EFFECT OF SILICA FILLER AND BLOWING AGENT Guriy a K C Tripathy D K Indian Institute of Technology... [Pg.98]

ASTM Method D3900-95 (2000) Standard Test Methods for Rubber-Raw Determination of Ethylene Units in EPM (Ethylene-Propylene Copolymers) and EPDM (Ethylene-Propylene-Diene Terpolymers). [Pg.75]

Solid-state 13C NMR has been used to identify elastomers in binary blends of chloroprene (CR) and NR, CR and CSM, NR and CSM, and SBR and acrylonitrile-butadiene rubber (NBR). The type of NBR can be determined by identifying the sequences of acrylonitrile and butadiene. The tertiary blend of NR/SBR/BR was also studied [49]. High-temperature 13C solid-state NMR identified ethylene-propylene diene terpolymer (EPDM) and fluoro and nitrile rubbers [50]. [Pg.340]

Acrylonitrile-Ethylene/Propylene-Styrene Copolymer AES is a terpolymer obtained by grafting styrene-acrylonitrile copolymer to ethylene-propylene or ethylene-propylene-diene monomer rubber. Similar to ABS except with improved weathering resistance. [Pg.70]

Manchado M. A. L., Biagiotti J. and Kenny J. M., Rheological behavior and processability of polypropylene blends with rubber ethylene propylene diene terpolymer. J. Appl. Polym. Sci. 81 (2001) pp. 1-10. [Pg.539]

These polyolefin rubbers are produced in two main types the saturated co-polymers, ethylene propylene rubber (EPM), and the unsaturated ethylene-propylene diene terpolymer (EPDM). The monomers are co-polymerised in ziegler natta type catalysts. The EPDM types are capable of sulfur vulcanisation as they contain, in addition to olefins, a non coagulated diene as the third monomer. [Pg.45]

Red lead is an ingredient generally used in all Neoprene compounds for tank linings for good water and chemical resistance. But it should not be used in compounds of Neoprene designed for contact with food or potable water. Tubes or pipes for conveying potable water are made of ethylene-propylene diene terpolymer (EPDM) rubbers. [Pg.57]

The choice of date range is arbitrary. The number of journal articles for each year was obtained from a search of electronic version of English-based polymer and polymer-related journals using the keywords polyolefin and blends. Within polyolefin keyword, the subkeywords used in the search were polyethylene (PE, LLDPE, LDPE, HDPE, UHMWPE, PE, etc.), polypropylene (PP, iPP, sPP, aPP, etc.), polybutene-1, poly-4-methylpentene-l, ethylene-diene monomer, ethylene-propylene-diene terpolymer, ethylene propylene rubber, thermoplastic olefins, natural rubber (NR), polybutadiene, polyisobutylene (PIB), polyisoprene, and polyolefin elastomer. For the polyolefin blends patent search, polymer indexing codes and manual codes were used to search for the patents in Derwent World Patent Index based on the above keywords listed in the search strategy. [Pg.10]

We will now report the results of autohesion for homogeneous, symmetric joints of polyisoprene rubber (IR) and styrene-butadiene copolymer (SBR) both vulcanized by a sulfur-based system (Section 24.2.1), and of ethylene-propylene diene terpolymer (EPDM) crossHnked by an electron beam (Section 24.2.2). [Pg.389]

A blend of low-density polyethylene (LDPE) polyethylene (LDPE) with the terpolymer ethylene-propylene-diene monomer rubber (EPDM) exhibits a synergistic effect on tensile strength if EPDM is partially crystalline, but a nonsynergistic effect if the EPDM is amorphous [65]. This example shows the dramatic effect that morphology can have on properties of polymer blends. The synergism apparently arises from a tendency for crystallites in the LDPE to nucleate crystalli2ation of ethylene segments in the EPDM. [Pg.529]

US Environmental Protection Agency Ethylene-propylene diene terpolymer Expanded polyethylene Rubbers of ethylene-propylene monomer Ethylene-propylene rubber Expanded polystyrene Electrostatic-discharge dissipating... [Pg.294]

During the last several years, much effort has been spent on developing new materials, based on iPP/elastomers blends. This interest is related to the fact that addition of the rubber phase improves the impact strength of the iPP, The present paper reports on a study of the isothermal crystallization and melting behaviour of thin films of isotactic polypropylene blended with an ethylene--propylene diene terpolymer and three samples of polyisobutylene with different molecular mass. [Pg.57]

Ethylene-propylene-diene terpolymer. See EPDM rubber... [Pg.1114]

The use of dispersions of saturated rubbers, such as ethylene-propylene diene terpolymer (EPDM), in polybutadiene or natural rubber has become important in the manufacture of elastomers that resist cracking due to ozone attack (O Mahoney, 1970). The latter two elastomers contain... [Pg.271]

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