Plastic

Question 1

Any of numerous synthetic or natural organic materials that are mostly thermoplastic or thermosetting polymers of high molecular weight and that can be molded, extruded, or drawn into objects, films, or filaments.

Answer 1

Plastic

Question 2

A plastic capable of softening or fusing when heated without a change in any inherent properties, and of hardening again when cooled.

Answer 2

Thermoplastic

Question 3

A chemical reaction in which the molecules of a monomer combine to form larger molecules that contain repeating strctural units of the original molecules.

Answer 3

Polymerization

Question 4

A molecule of low molecular weight that can be chemically bound as a unit of a polymer.

Answer 4

Monomer

Question 5

A compound of high molecular weight formed by polymerization and consisting essentially of repeating structural units.

Answer 5

Polymer

Question 6

A polymer consisting of molecules that are large multiples of monomers.

Answer 6

High polymer

Question 7

A compound of high molecular weight formed by polymerizing two or more different monomers together.

Answer 7

Copolymer

Question 8

A method of shaping a plastic object by pouring the material into a mold and allowing it to harden without the use of pressure

Answer 8

Casting

Question 9

A method of forming hollow ware by injecting air under pressure into a molten mass, as that of a thermoplastic or glass, and shaping the material within a mold.

Answer 9

Blow molding

Question 10

A method of forming a thermoplastic, thermoset, metal or ceramic material by rendering it fluid in a heating chamber and then forcing it under high pressure into a closed mold.

Answer 10

Injection molding

Question 11

A method of forming thermosetting plastic by cloasing a mold on it, forming the material by heat and pressure.

Answer 11

Compression molding

Question 12

A method of forming thermosetting plastic by softening it in one chamber before it is forced into an adjacent mold where it is cured under heat and pressure.

Answer 12

Transfer molding

Question 13

A method of shaping a thermoplastic sheet by heating and forcing it against the contours of a mold by heat and pressure.

Answer 13

Thermoforming

Question 14

A method of thermoforming a plastic sheet by forcing it against the contours of a mold with compressed air.

Answer 14

Pressure Forming

Question 15

A method of thermoforming a plastic sheet by evacuating the space between the sheet and the contours of a mold.

Answer 15

Vacuum forming

Question 16

Any of numeros solid or semisolid organic substances prepared by polymerization and used with fillers, stabilizers and other components to form plastics.

Answer 16

Resin

Question 17

A relatively inert substance added to modify the bulk, strength, heatresistance, electrical resistance, or working properties of a resin.

Answer 17

Filler

Question 18

A substance added to prevent or retard the degradation of a plastic when exposed to ultraviolet radiation or other environmental conditions.

Answer 18

Stabilizer

Question 19

Any of various substances added to a resin to increase its workability and flexibility.

Answer 19

Plasticizer

Question 20

A substance that causes or accelerates a chemical reaction without itself undergoing a permanent change in composition.l

Answer 20

Catalyst

Question 21

Any of a class of thermoplastic resins used for casting or molding plastic parts that are exceptionally transparent, tough, and resistant to weather and chemicals, or as the main ingredient in coatings, adhesives and caulking compounds.

Answer 21

Acrylic resins

Question 22

Trademark for a brand of transparent acrylic resinl.

Answer 22

Lucite

Question 23

Trademark for a brand of light, transparent, weather-resistant acrylic resin.

Answer 23

Plexiglas

Question 24

A tough, transparent thermoplasti characterized by its high-impact strength and used for lightin fixtures, safety glazing, and hardware.

Answer 24

Polycarbonate

Question 25

Trademark for a brand of tough polycarbonate used for shatterproof windows.

Answer 25

Lexan

Question 26

A tough, light, and flexible thermoplastic used esp in the form of sheeting and film for packaging, dampproofing, and as a vapor retarder.

Answer 26

Polyethylene, Polythene

Question 27

A tough, thermoplastic that is resistant to heat and chemicals and used for pipe fittings, electrical insulation and carpeting fibers.

Answer 27

Polypropylene

Question 28

A hard, tough, stable thermoplastic that is easily colored and molded, expanded or rolled into sheeting.

Answer 28

Polystyrene

Question 29

A thermoplastic used for making plastic pipes and hardware products that are tough, rigid, and resistant to heat and chemicals.

Answer 29

Acrylonitrile-butadiene-styrene, ABS

Question 30

Any of various tough, flexible plastics made from polyvinyl resin.

Answer 30

Vinyl

Question 31

Any of a class of thermoplastic resins formed by polymerizing or copolymerizing a vinyl compound.

Answer 31

Polyvinyl resin, vinyl resin

Question 32

A white, water-insoluble thermoplastic widely used in the manufacture of floor coverings, insulation and piping.

Answer 32

Polyvinyl chloride

Question 33

A thermoplastic resin used chiefly as the interlayer of safety glass.

Answer 33

Polyvinyl Butyral

Question 34

Any of a class of thermoplastics characterized by extreme toughness, strength, and elasticity and capable of being extruded into filaments, fibers and sheets,

Answer 34

Nylon

Question 35

A method of producing plastic film or sheeting by passing the material between a series of revolving, heated rollers.

Answer 35

Calendering

Question 36

A thin form of plastic, having a thickness very small in proportion to its length and width.

Answer 36

Sheeting

Question 37

Sheeting having a nominal thickness noth greater than 10mils.

Answer 37

Film

Question 38

A plastic that becomes permantly rigid when heated and cannot be softened again.

Answer 38

Thermoset, Thermosetting plastic

Question 39

The maximum temperature at which a plastic can be continuously employed without a noticeable reduction in any of its inherent properties.

Answer 39

Service temperature

Question 40

The temperature at which a plastic changes from a rigid to a soft state.

Answer 40

Softening point

Question 41

Any of various thermoplastic or thermosetting resins used in flexible and rigid foams, elastomers and resins for sealants, adhesives, and coatings.

Answer 41

Polyurethane

Question 42

Any of a group of thermosetting resins used in the manufacture of plastics and textile fibers.

Answer 42

Polyester

Question 43

A polyester reinforced with glass fibers and used in translucent roofs and skylights, facings for sandwich panels, and molded plumbing fixtures.

Answer 43

Fiberglass-reinforced plastic

Question 44

Trademark for a brand of strong, wrinkle-resistant polyester fiber.

Answer 44

Dacron

Question 45

Trademark for a brand of strong, thin polyester film used in photography, recording tapes and electrical insulation.

Answer 45

Mylar

Question 46

Any of various thermosetting resins capable of forming tight cross-linked polymer structures characterized by toughness, strong adhesion, and high corrosion and chemical resistance, used esp in surface coatings and adhesives.

Answer 46

Epoxy resin

Question 47

Any of a class of thermosetting resins formed by the interaction of melamine and formaldehyde and used for molded products, adhesives and surface coatings.

Answer 47

Melamine Resin

Question 48

Any of a class of hard, heat resistant thermosetting resins formed by the condensation of phenol with formaldehyde and used for molded products, adhesives and surface coatings.

Answer 48

Phenolic Resin, Phenoplast

Question 49

Trademark for a brand of dark phenolic resin, invented by Dr. Leo Baekeland in 1916, and used for telephone receivers, radio cabinets, electric insulators and molded plastic hardware.

Answer 49

Bakelite

Question 50

Any of various thermosetting synthetic resin made by condensing urea with formaldehyde and used in appliance housings, electrical devices, adhesives, and surface coatings.

Answer 50

Urea-formaldehyde Resin

Question 51

A method of shaping a fully or partially cured thermosetting laminate over a mold by heat and pressure.

Answer 51

Postforming

Question 52

A product, such as plywood and plastic laminate, made by uniting two or more layers of material by an adhesive or other means.

Answer 52

Laminate

Question 53

A hard surfacing material consisting of superposed layers of paper impregnated with melamine and phenolic resins, fused together under heat and pressure.

Answer 53

Plastic Laminate

Question 54

A plastic laminate molded and cured in the range of pressures from 1200 to 2000 psi (84 to 140kg per sqcm), used for surfacing countertops and cabinetry.

Answer 54

High-pressure laminate

Question 55

A plastic laminate molded and cured with a maximum pressure of 400psi (28kg per sqm), used in vertical and low-wear applications.

Answer 55

Low-pressure laminate

Question 56

A material made by chemically treating and toughening natural rubber, valued for its elasticity, nonconduction of electricity, and resistance to shock and moisture.

Answer 56

Rubber

Question 57

A highly elastic solid substance, essentially a polymer of isoprene, obtained by coagulating the milky juice of rubber trees and plants.

Answer 57

Natural Rubber, India Rubber

Question 58

A light, spongy, cellular rubber made by foaming latex before vulcanization.

Answer 58

Foam Rubber

Question 59

The treatment of rubber with sulfur and heat to impart greater elasticity, strength and durability.

Answer 59

Vulcanization

Question 60

An elastomer similar to natural rubber in properties and uses, produced by the polymerization of an unsaturated hydrocarbon, such as butylene or isoprene, or by the copolymerization of hydrocarbons with styrene or butadiene.

Answer 60

Synthetic Rubber

Question 61

Any of various polymers, such as butyl rubber or neoprene, having the elastic properties of natural rubber.

Answer 61

Elastomer

Question 62

A synthetic rubber having exceptional resistance to sunlight and unusually low gaseous permeability, produced by polymerizing butylene and used in roofing membranes and waterproofing barriers.

Answer 62

Butyl rubber

Question 63

Trademark for a brand of butyl rubber.

Answer 63

Butyl

Question 64

A synthetic rubber characterized by superior resistance to oils and sunlight, and used in paints, roofing membranes, flashing, gaskets and bearings.

Answer 64

Neoprene

Question 65

A rubber made from silicone elastomers and noted for its retention of flexibility, resilience and tensile strength over a wide temperature range.

Answer 65

Silicone Rubber

Question 66

Any of a group of polymers containing alternating silicon and oxygen atoms, characterized by thermal stability, chemical inertness and extreme water repellence, and used in adhesives, lubricants, protective coatings and synthetic rubber.

Answer 66

Silicone