FD; PLASTICS

PLASTICS

are long chain molecular structures evolved from common elements and compounds, gases, lime, salt, coal, oil, molasses, cotton, wood, etc.-by chemical synthesis.

TYPES OF PLASTICS

THERMOPLASTIC

THERMOSET

THERMOPLASTIC

the long chain of molecular structure can then be activated by heat to allow freer movement between the molecules thus the plastic can he softened and re softened without deformation provided the degree of heat is kept below the point of actual degrade of the material

Acrylonitrile Butadiene Styrene (ABS)

Drawers, Doors, Knobs, Legs, etc.

CASEIN

Wood and paper glues, Small molded components

Cellulose Acetate (CA)

Sheet, Film, Small molded components

Cellulose Acetate Butyrate (CAB)

High impact moldings

Cellulose Nitrate (CN)

Finishes, lacquers, small molded components

Polyvinyl Chloride (PVC)

Rigid and flexible sheet, extrusions and coatings

Polyvinyl Acetate (PVA)

Wood and paper glues, contact adhesives

Polyethylene LD (polyethene)

Low-density films, packaging materials

Polyethylene

Sheet, structural moldings and components

Polyurethane

Lacquers and finishes, Rigid foam structures

Polyurethane Ester

Flexible foam seating

Polyurethane Ether

Flexible foam seating

Polystyrene

Sheet, film, expanded foam

Polystyrene I

High density sheet, rigid foam structure

Polymethyl Methacrylate (Perspex)

Sheet, structural moldings and components

Polyacetal

Door handles, hinges, etc.

Polypropylene

Sheet, structural moldings and components

Polyamide (nylon)

Fibers, sheet, frictionless molded and shaped components

Thermosetting

Later application of certain simple chemicals or simple heat carries the polymerization a stage further producing cross linkages, which destroy the mobility of the molecules, and the plastic sets into hard, infusible resin, which cannot be resoftened . — this latter type is usually known as resin plastics.

Phenol Formaldehyde (PF)

Wood Glues, Bonding Agents, Reinforced laminates. Moldings

Urea Formaldehyde

Wood Glues, Chipboard, Moldings

Melamine Formaldehyde (MF)

Wood Glues, Reinforced Laminates, Moldings

Resorcinol Formaldehyde (RE)

Wood Glues

Phenol Resorcinol Formaldehyde (RPF)

Wood Glues

Polyester

Finishes, Lacquers, Laminates

Epoxide (Epoxy Resin)

Glues (metal, glass, etc.), castings, pottings, etc.

APPLICATIONS

• CAST AND MOULDED STRUCTURES AND COMPONENTS

• EXTRUSIONS AND EXTRUDED SECTIONS

• SHAPED FORMS AND FABRICATIONS

Polyester Resin Fiberglass Laminates

Rapid molding techniques for production of rigid plastic shapes or shells (chairs, seats, etc.)

GRP Former Mould

Rapid moulding techniques for production of rigid plastic shapes or shells (chairs, seats, etc.)

Finished Mould

Former mould is treated with emulsion wax, wax polish and release agent, then a single gel coat followed by the requisite thickness of glass mat (minimum 2 layers) and resin.

PERSPEX

or acrylic sheet (polymethyl methacrylate) is readily obtainable in clear transparent, pastel shades, full colors, and transfusing and fluorescent colors in thickness from 1/25 in (1 mm) to ½ in (12.5 mm) diameter.

NYLON

Or polyamide, has universal uses as a fiber material for it can be cold drawn to five times its original strength, thus straightening the chain molecules and imparting great strength and excellent wear resistance

Decorative Plastic Laminates

familiarly known as Formica, Wilson Art, Consulweld, etc., these are composed of layers of craft paper impregnated with phenolic resins while the surface pattern which can be purely decorative in an infinite range of designs or an exact simulation of real wood grains, is printed on a cover paper, and coated with a scratch-resistant surface of melamine resin.