Properties of thermoplastic

ASTM D3835, Determination of Properties of Thermoplastic Materials by Capillay RJ)eometer, Vol. 8.02, ASTM, Philadelphia, Pa., 1994. 

R. M. Ogorkiewic2, Engineering Properties of Thermoplastics, John Wiley Sons, Inc., New York, 1970, p. 251. 

Table 1. Physical and Coating Properties of Thermoplastic Powders ...

Because of increased production and the lower cost of raw material, thermoplastic elastomeric materials are a significant and growing part of the total polymers market. World consumption in 1995 is estimated to approach 1,000,000 metric tons (3). However, because the melt to soHd transition is reversible, some properties of thermoplastic elastomers, eg, compression set, solvent resistance, and resistance to deformation at high temperatures, are usually not as good as those of the conventional vulcanized mbbers. AppHcations of thermoplastic elastomers are, therefore, in areas where these properties are less important, eg, footwear, wine insulation, adhesives, polymer blending, and not in areas such as automobile tires. 

When the material is allowed to cool it solidifies again. This cycle of softening by heat and solidifying on cooling can be repeated more or less indefinitely and is a major advantage in that it is the basis of most processing methods for these materials. It does have its drawbacks, however, because it means that the properties of thermoplastics are heat sensitive. A useful analogy which is often used to describe these materials is that, like candle wax, they can be repeatedly softened by heat and will solidify when cooled. 

Throne, J.L. Mechanical properties of thermoplastic structural foams, in Wendle, B.C. (ed.) Engineering Guide to Structural Foams, Technomic, Lancaster, PA, USA (1976) pp. 91 -114. 

Other properties of thermoplastics as well. Owing to the relatively low-melt viscosity of thermotropic LCPs, often a small amount of LCP decreases the blend viscosity significantly and renders the matrix thermoplastics easier to process [9-211. 

Fridman ML (1981) Control of rheological properties of thermoplastics and compositions on thdr basis with a view to intensify the shaping process, Doctorate thesis, IKhF AN SSSR, Moscow... 

POLYMAT light POLYMAT light Materials Data for Plastics is a manufacturer independent, materials database for plastics and contains properties of thermoplastics, thermoplastic elastomers and blends. In total, data from approximately 13,000 commercial products of 170 manufacturers are available products and data can be retrieved via searching in 35 different numerical properties and 15 text fields. 

Crosslinking, Thermal and Mechanical Properties of Thermoplastic and Phenolic Resin Systems A Bibliography1", PLASTEC Note 11 (1966) 16) N.E. Beach, Glossary of... 

Typical Properties of Thermoplastic Elastomers Developed from Nylon-6-Acrylate Rubber Blends... 

Jha and Bhowmick [51] have reported the development and properties of thermoplastic elastomeric blends from poly(ethylene terephthalate) and ACM by solution-blending technique. For the preparation of the blend the two components, i.e., poly(ethylene terephthalate) and ACM, were dried first in vacuum oven. The ACM was dissolved in nitrobenzene solvent at room temperature with occasional stirring for about three days to obtain homogeneous solution. PET was dissolved in nitrobenzene at 160°C for 30 min and the rubber solution was then added to it with constant stirring. The mixture was stirred continuously at 160°C for about 30 min. The blend was then drip precipitated from cold petroleum ether with stirring. The ratio of the petroleum ether/nitrobenzene was kept at 7 1. The precipitated polymer was then filtered, washed with petroleum ether to remove nitrobenzene, and then dried at 100°C in vacuum. 

Properties of Thermoplastic Elastomeric Composition Based on Hydrogenated Styrene-Butadiene Rubber and Low-Density Polyethelene... 

Mechanical Properties of Thermoplastic Elastomers Based on Acrylate Rubber-Fluorocarbon Rubber-Polyacrylate Monomer... 

Mechanical Properties of Thermoplastic Elastomer Composition with Varying Waste-Rubber Loading at Constant Rubber/Plastic Ratio of 70 30 (w/w)... 

Choudhury N.R., Chaki T.K., Dutta A., and Bhowmick A.K. Thermal, x-ray and d3mamic mechanical properties of thermoplastic elastomeric natural rubber-polyethylene blends. Polymer, 30, 2047, 1989. Marasch M.J., TPU s Growth from versatility, 53rd Annual Tech. Conference, Antech 95 4088, Boston, May 7-11, 1995. 

The undesirable properties of thermoplastic polyurethane elastomer, i.e., softening at high temperatures and flow under pressure, which limit their use at elevated temperamres have been reduced by cross-linking with EB radiation. The cross-linked polyurethane shows good mechanical properties and also displays good resistance to aggressive chemicals, e.g., brake fluid [432 35]. 

Anandhan, S., De, P.P., De, S.K., Swayajith, S., and Bhowmick, A.K., Thermorheological properties of thermoplastic elastomeric blends of nitrile rubber and poly(styrene-co-acrylonitrile) containing waste nitrile rubber vulcanizate powder, Kautsch. Gummi Kunst., 11, 2004. 

Strength-Temperature Relations. One of the key properties of thermoplastic elastomers is their resistance to elevated temperatures. Figures 15 and 16 show the effect of temperature on the tensile strength of the two types of block copolymers. 

Table 3c. Properties of thermoplastics with complicated backbone chain structure. ...

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