Abrasion resistance index

Devotees of the use of standard rubbers then finally express the result as an abrasion resistance index defined by ... [Pg.233]

Four standard rubbers are specified, two of which are the same as those given in ISO 4649. The other two are a high abrasion resistant SBR compound and a low abrasion resistant material which may be preferred for comparison with high and low abrasion resistant test materials respectively. For all three methods, the calculation of abrasion resistance index is specified. [Pg.237]

Weight or volume loss can be related to unit distance travelled over the abradant, per 1000 cycles or whatever is convenient. If comparison is then made with a reference material, an abrasion resistance index can be defined by... [Pg.253]

The British Standard offers three standard rubbers in addition to the DIN standard formulation. All results for the three non-ISO methods are expressed as an abrasion resistance index. [Pg.295]

Low-Tg polymer/high-Tg polymer Blend ratio tan 6 lYO (i-WET IPST Abrasion resist. index... [Pg.48]

Abrasion Resistance - Abrasion Resistanee is defined as the resistance of a rubber composition to wearing away by eontact with a moving abrasive surface. It is usually reported as an Abrasion Resistance Index, which is a ratio of the abrasion resistance of the test eompound compared to that of a referenee standard measured under the same test eonditions. [Pg.265]

EP 323142 (European) 1989 Ternary polyether ketone blend wire insulations Pirelli General PLC, UK CK Alesbury, RJ Murphy Formulation shows excellent stress craze resistance, flexibility and flame resistance Blends of polyarylene ether ketones, polyether imides and polyfimide siloxanes) were coated onto wire for solvent resistance, O index and abrasion resistance. Blends without siloxane-imide copolymer did not meet these properties... [Pg.92]

MW of plastics influences their properties. As an example with increasing MW properties increase for abrasion resistance, brittleness, chemical resistance, elongation, hardness, melt viscosity, tensile strength, modulus, toughness, and yield strength. Decreases occur for adhesion, melt index, and solubility. [Pg.11]

The tests of the produced materials for the abrasive wear showed that the composition 20 % TiB2 + 25 % Si-natural Dia possesses the highest wear resistance. The wear resistance index is equal to 206. [Pg.288]

Abrasion resistance is usually measured by the Taber Test procedure described by ASTM D1044. Abrasion resistance of unfilled semicrystalline polymers is linked to the degree of crystallinity that is itself related to the molecular stmcture and weight of the resin and its processing. Table 3.54 includes the results of testing two types of perfluoroalkoxy polymers, PFA and MFA, and ECTFE. Notice the large difference between wear index (weight loss by abrasion in 1000 cycles) of ECTFE which is a partially... [Pg.83]

Abrasion resistance. The resistance of aggregates to abrasion is measured in terms of the aggregate abrasion value and the polished stone value (see section 6.4.3). An alternative measure is the Bond Work Index [3.3], which ranges from 4 kW-hr/t for soft limestones, to about 10 for typical dense limestones. [Pg.19]

The results of an abrasion test (ASTM D4060-01) carried out for 500 test cycles are presented in Table 11.4. Wear index decreased monotonically with the increase in the HDDA content in the coating formulation, which showed that the abrasion resistance property of BDGDA improved in the presence of HDDA. Improvement in abrasion resistance of the coating with increase in HDDA content is attributed to the increase in the cross-link density on addition of HDDA. [Pg.316]

Features Ditunctional high reactivity good chem. resist., abrasion resist., adhesion, hardness, water resist. low color Properties Gardner 1 dear liq. dens. 9.57 Ib/gal vise. 33,000 cps add no. 2 ref. index 1.5342 80% oligomer, 20% monomer CN104B80 [Sartomer]... [Pg.191]

Features Fast cure response good gloss, chem. resist., flexibility, adhesion, abrasion resist. low vise. easier handling Properties APHA < 65 clear liq. dens. 9.9 Ib/gal vise. 57,500 cps ref. index 1.5063 CN124 [Sartomer]... [Pg.193]

Features Low vise. good abrasion resist, heaf resisf., chem. resisf., hardness, wafer resist, weafherability nonyellowing fasf cure response Properties APHA 20 dear liq. dens. 9.8 Ib/gal vise. 18,000 cps ref. index 1.4902 100% oligomer CN970 A60 [Sartomer]... [Pg.196]

Features Tough engineering resin with high abrasion resist, and stability in harsh thermal, chem., and UV environments readily melt processable Properties Sp.gr. 1.78 melt flow 3-7 g/10 min m.p. 141-145 C ref. index 1.41 tens. str. 3500-6000 psi (break) tens, elong. 10-20% (yield), 400-500% (break) Izod impact 12-18 ft Ib/in. notch Shore hardness D65-70 water absorp. 0.03% distort, temp. 40-50 C (1.8 MPa) sp. heat 1.26-1.42 y/kg K flamm. V-0. [Pg.466]

Chem. Descrip. Vinyl-toluene/butadiene emulsion copolymer Uses Film-former for solv.-based traffic paints, block fillers, paper coatings, adhesives, laminates, printing inks, hot melts, abrasion-resist, coatings, masonry and concrete paints, waterproof coatings Features Produces films with clarity, str., hardness and chem. resist. Properties Sol. in aromatic soivs., aliphatic blends, chlorinated HC, esters, ketones sp.gr. 1.026 dens. 8.56 Ib/gal ref. index 1.57 hardness (Sward) 20 (24 h) dissip. factor 0.0010 (100 Hz) dielec, const. 2.58 (100 Hz) vol. resist. 6.97 xIO ohm-cm Pliolite VTAC [Goodyear]... [Pg.638]

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