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Plastics testing

Plastics testing encompasses the entire range of polymeric material characterizations, from chemical stmcture to material response to environmental effects. Whether the analysis or property testing is for quaUty control of a specific lot of plastic or for the determination of the material s response to long-term stress, a variety of test techniques is available for the researcher. [Pg.148]

Combination techniques such as microscopy—ftir and pyrolysis—ir have helped solve some particularly difficult separations and complex identifications. Microscopy—ftir has been used to determine the composition of copolymer fibers (22) polyacrylonitrile, methyl acrylate, and a dye-receptive organic sulfonate trimer have been identified in acryHc fiber. Both normal and grazing angle modes can be used to identify components (23). Pyrolysis—ir has been used to study polymer decomposition (24) and to determine the degree of cross-linking of sulfonated divinylbenzene—styrene copolymer (25) and ethylene or propylene levels and ratios in ethylene—propylene copolymers (26). [Pg.148]

Nuclear magnetic resonance (nmr) requires an atomic nuclei that can absorb a radio-frequency signal impinging it in a strong magnetic field to give a spectmm. The field strength at which the nucleus absorbs is a function of both the nucleus and its immediate electronic environment. The atoms normally used for nmr analysis are as follows (34) H, F, P, Si, and Of these, the most commonly used in polymer analyses are [Pg.148]

Kirk-Othmer Encyclopedia of Chemical Technology (4th Edition) [Pg.148]

The molecular weight and the distribution of multiple molecular weights normally found within a commercial polymer influence both the processibiUty of the material and its mechanical properties. Eor a few well-defined homopolymers, an analysis of composition and molecular weight is sufficient to define the likely mechanical properties of the polymer. [Pg.149]

A wide variety of polymers have been analyzed by gel-permeation, or size-exclusion, chromatography (sec) to determine molecular weight distribution of the polymer and additives (86—92). Some work has been completed on expanding this technique to determine branching in certain polymers (93). Combinations of sec with pyrolysis—gc systems have been used to show that the relative composition of polystyrene or acrylonitrile—polystyrene copolymer is independent of molecule size (94). Improvements in gpc include smaller cross-linked polystyrene beads having narrow particle size distributions, which allow higher column efficiency and new families of porous hydrophilic gels to be used for aqueous gpc (95). [Pg.149]


Plastics carboys Plastics compounding Plastics, engineering Plastic sheet Plastics processing Plastics testing Plastic tapes Plastic working Plastiform Plastisols... [Pg.770]


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See also in sourсe #XX -- [ Pg.283 , Pg.284 , Pg.285 , Pg.286 , Pg.287 , Pg.288 , Pg.289 , Pg.290 , Pg.291 , Pg.292 , Pg.293 , Pg.294 , Pg.302 , Pg.334 , Pg.339 , Pg.340 , Pg.341 , Pg.342 , Pg.343 , Pg.344 , Pg.345 , Pg.346 , Pg.347 , Pg.352 , Pg.353 , Pg.354 , Pg.355 , Pg.356 , Pg.357 , Pg.358 , Pg.359 , Pg.360 , Pg.361 , Pg.362 , Pg.363 , Pg.364 , Pg.365 ]

See also in sourсe #XX -- [ Pg.15 , Pg.32 ]




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ASTM Tests for Determination of Phenolic Antioxidants in Plastics

Aging properties tests, plastics

Appearance tests, plastics

Biodegradable plastics testing

Compliance testing plastics

Compostable plastics ecotoxicity testing

Design Procedure for Plastics Parts Function, Material, Geometry, Test

Electrical properties tests, plastics

Environmental Simulation Tests for Fuel-Carrying Plastics Components

Fatigue testing failure, plastic specimen

Filler content tests, plastics

Fire resistance tests, plastics

Handbook of Plastics Testing and Failure Analysis, Third Edition, by Vishu Shah

Izod impact test specimens plastics

Long-Term Testing of Plastics

Mechanical properties tests, plastics

Overall migration testing plastics

Peel test adherend plasticity

Physical properties tests, plastics

Plastic cell test

Plastic deformation compression tests

Plastic product design ASTM tests

Plastic tensile test

Plasticity test

Plasticity test

Plasticizer absorption tests

Plastics Fundamentals, Properties, and Testing

Plastics Fundamentals, Properties, and Testing Poly

Plastics Properties and Testing

Plastics Test methods

Plastics flame test identification

Plastics quasi-static testing

Plastics specific migration testing

Plastics test conditions

Plastics, thermal properties tests

Plastics, thermoplastics processing tests

Plastics, thermoset processing tests

Practice for Outdoor Exposure Testing of Photodegradable Plastics

Practice for Performing Outdoor Accelerated Weathering Tests of Plastics Using Concentrated Sunlight

Recycled plastics testing

Reinforced plastic fatigue testing

Short-Term Testing of Plastics

Standard Test Method for Compressive Properties of Rigid Plastics

Standard Test Method for Determining Ignition Temperature of Plastics

Standard Test Methods for Apparent Density, Bulk Factor, and Pourability of Plastic Materials

Standard Test Methods for Compressive Properties of Unreinforced and Reinforced Plastic Lumbers

Standard Test Methods for Flexural Properties of Unreinforced and Reinforced Plastic Lumbers

Standard Test Methods for Tensile Properties of Plastics

Standard Test Methods for Water Absorption of Plastics

Tensile testing, plastics

Tensile testing, plastics standard electrical tests

Tensile testing, plastics standard impact tests

Tensile testing, plastics standard mechanical tests

Tensile testing, plastics stress—strain curves

Test Methods for Tensile Properties of Reinforced Thermosetting Plastics Using Straight-Sided Specimens

Test Methods for Water Absorption of Rigid Cellular Plastics

Test method plastic selection

Test-tube ends plastic

Testing Plastics for Photodegradability

Testing Readily Biodegradable Plastics

Testing of Foam Plastics

Testing of plastics

Transparent plastic refractive index test

Transparent plastic refractive index test methods

Wear tests for plastics

Williams plasticity test

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