Plastic injection molding material and application

Table of Contents

With the rapid development of the plastics industry, more and more high technologies have been applied to the research and development of plastic resins. The high-technology plastic used in product development improves the performance of plastic injection products, such as fire resistance, aging resistance, and radiation resistance. It enhances the strength and hardness of plastic products.
The application of common plastic raw materials below allows customers to choose suitable materials for injection production when developing new plastic products.

General application of commonly used plastics in injection molding
Plastic NameApplication
ABSThe largest application areas of ABS resin are automobiles, electronic appliances, and building materials. Including car dashboards, body outer panels, interior trim panels, steering wheels, sound insulation panels, door locks, bumpers, ventilation pipes, and many other parts. In terms of electrical appliances, it is widely used in refrigerators, televisions, washing machines, air conditioners, computers, copiers, and other electronic devices. In terms of building materials, ABS pipes, ABS sanitary ware, and ABS decorative panels are widely used in the building materials industry. In addition, ABS is also widely used in packaging, furniture, sports and entertainment products, machinery, and instrumentation industries.
ABS resin is widely used in the automotive industry, electrical instrumentation industry, and machinery industry. helmets, etc. Household appliances and household electronic equipment, such as televisions, tape recorders, refrigerators, freezers, washing machines, air conditioners, vacuum cleaners, and various small household appliances; daily necessities include shoes, bags, different travel boxes, office equipment, toys, and multiple containers, etc.
AS(SAN)Packaging container, instrument cover, instrument panel, tape recorder & TV knob, instrument lens, oil-resistant mechanical parts, air conditioner parts, cameras, auto parts such as tail light covers, instrument cases, instrument panels, fan blades, lamps
LDPEIndustrial use, mechanical parts, daily necessities, building materials, wire, cable insulation
HDPECalendering tape for containers, pipes, packaging, cable ties, wire, and cable
EVAHome appliance accessories, window sealing materials, sporting goods, toys, seat cushions, drawstrings, airtight container covers, EVA rubber footballs, auto parts such as shock absorbers, fenders, interior, and exterior decoration accessories, etc.
Polypropylene (PP)Parts of mechanical equipment, such as manufacturing industrial pipes, agricultural water pipes, motor fans, infrastructure formwork, insulating shells of household appliances, and washing machine liner
Soft PVCHose, wire
Plastic PVCPipes, pipe fittings
Nylon PA-6Gear, consumer electronics
Nylon PA-66Hardware, gear
Polyurethane rubber (TPR)Light Industrial Supplies
Tools, power tools, gas masks, casters, non-slip pedals, pliers handles, various racket grips, bicycles, motorcycle grips, luggage suitcase grips, cutlery grips, knife handles, flashlight grips, video cameras, digital cameras Grips, ammonium buttons, remote control buttons, computer keyboards, wire connectors, plugs, grip rubber for electric shavers, audio and speaker elastic accessories, etc.
daily necessities
Handle covers, toothbrush handles, bellows, binoculars, soft toys, a high-transparency alternative to silicone pacifiers, spoons, shower elastics, sanitary ware series, soft tablecloths, curtains, gift boxes, refrigerator boxes, non-slip mats, rubber Floor mop, glass wiper edge, etc.
Pen cover rubber parts, diving equipment, mouse balls, chest guards, mouth guards, (golf, ski poles) rubber clubs, (tensioner) hoses, knee pads, masks, frog mirrors, fins, swimming goggles, diving masks, Ski goggles and goggle straps, grips, treadmill straps, table tennis racket rubber, roller skates shock absorbers, etc.
medical instruments
Medical saline bottle stoppers, disposable syringe rubber stoppers, ear wash balls, plasma bags, infusion bags, surgical gloves, medical protective clothing, medical sanitary rubber materials, extruded hoses, elastic suction balls, containers, straps, etc.
CVJ dust cover, steering gear cover, shock absorber cover, dust cover, traction coupling cover, long-distance bellows, engine intake air duct, airbag cover, car satellite antenna cable buckle, trunk lock Assembly, door lock assembly, door handle sealing ring, shock absorber plate, muffler gear, pipe plug, plug, ball head, window glass shock absorber, shock absorber chassis, chassis stone-resistant coating, etc.
Electrical Packaging Industry
High-voltage electrical connectors, insulated wires and cables, and sheaths, anti-static strips for electronic components, composite pipe fittings, electric welding handle cable sheaths, electrical elastic buttons, cordless telephone radomes, wires and cables, instruments and equipment.
industrial manufacturing
Seals, conveyor belts, elevator slides, high-pressure washers, tape recorder silencer gears, quartz clock silencer gears, cigarette machine springs.
Other consumer goods
Power tools, sporting goods, daily necessities, plastic alloys.
Polystyrene (PS)Electronic appliances: connectors switch parts, household appliances, accessory parts, small electric covers or (heat resistance, flame retardancy, electrical insulation, molding processability);
1. External parts: mainly include corner grids, engine heat release escutcheons, etc.;
2. Internal parts: mainly endoscope stay, wiper bracket, and control system valve;
3. Automotive electrical parts: automotive ignition coil twisted tubes and various electrical connectors, etc.
Mechanical equipment: belt drive shafts of video tape recorders, electronic computer covers, mercury lamp covers, iron covers, baking machine parts and a large number of gears, cams, buttons, electronic watch casings, camera parts (with heat-resistant, flame-retardant Require)
POMMainly used for gears, bearings, auto parts, machine tools, instrument internals, and other products that play the role of the skeleton. It can replace most non-ferrous metals, automobiles, machine tools, instrument internals, bearings, fasteners, gears, spring sheets, pipes, conveyor belt accessories, electric water cookers, pump casings, drainers, faucets, etc.
Polyethylene terephthalate (PET/PETP)The packaging industry, electronic appliances, medical and health, construction, automobile, machinery, and other industries. Such as coil bobbins, transformers, televisions, recorder parts and casings, automotive lamp sockets, lamp shades, incandescent lamp sockets, relays, rectifiers, electronic appliances, manufacturing connectors, coil bobbins, integrated circuit casings, capacitor casings, Transformer housings, TV accessories, tuners, electrical component switches, timer housings, automatic fuses, motor brackets, and relays.
Auto parts, such as switchboard covers, ignition coils, various valves, exhaust parts, distributor covers, measuring instrument covers, small motor covers, and car exterior parts.
Mechanical equipment, precision instruments, manufacturing gears, cams, pump housings, pulleys, motor frames, and clock parts, microwave oven baking trays, various ceilings, outdoor billboards, models, etc.
Acrylic (PMMA)Plastic panel, instrumentation parts, car lights, optical lenses, transparent pipes
CATool handles, containers, stationery, decorations
PESCoil frame, contactor, switch parts, lamp holder base, battery cover, bearing bracket, piston ring, mechanical crank, warm water pump body, impeller, hot water measuring instrument, waterproof watch shell, light reflector, automobile gear Box ball bearing cages, brake bearing bushings, ignition noise cancellers, hot air ducts, aircraft interior trim, radomes, brackets, operating room lighting components, centrifugal pumps, surgical equipment handles, artificial respirators, coffee makers, brewers Egg Maker, Microwave Oven, Optical Equipment, Signal Light
Polyetherimide (PEI)Electronic industry connectors, relay housings, circuit boards, coils, reflectors, high-temperature heat shields, automotive lights, indicator lights, sensors, medical and surgical instrument handles, trays, fixtures, medical lamp reflectors, dental appliances, product packaging
Polycarbonate (PC)Optical lighting: used to manufacture large lamp shades, protective glass, left and right eyepiece tubes of optical instruments, etc., and can also be widely used as transparent materials on aircraft.
Electronic appliances: Polycarbonate is an excellent E (120°C) grade insulating material, which is used to manufacture insulating connectors, coil frames, sockets, insulating sleeves, telephone casings and parts, battery shells for miner’s lamps, etc. It can also be used to make parts with high dimensional accuracies, such as optical discs, telephones, electronic computers, video recorders, telephone switches, signal relays, and other communication equipment. Polycarbonate thin films are also widely used as capacitors, insulating leather bags, audio tapes, color videotapes, etc.
Mechanical equipment: used in the manufacture of various gears, racks, worm gears, worms, bearings, cams, bolts, levers, crankshafts, ratchets, as well as some mechanical parts such as shields, covers, and frames.
Medical equipment: cups, cylinders, bottles that can be used for medical purposes, as well as dental instruments, drug containers, surgical instruments, and even artificial organs such as artificial kidneys and artificial lungs.
Other aspects: used as hollow rib double-wall panels, greenhouse glass, etc. in construction; used as textile yarn bobbins, textile machine bearing bushes, etc. in the textile industry; daily use as milk bottles, tableware, toys, and models, etc.
PCTGperfume bottles and caps, cosmetic bottles and caps, cosmetic cases, medical devices, filters, eustachian tubes, tube connectors, pumps, clips, salt shakers, pepper shakers
Polyurethane elastomer (TPE)High-grade, high-transparency toys, adult products, suction cup materials, sports equipment, and sealing rings
Silicon rubberGaskets, window seals, electrical connectors anti-corona, silicone rubber anti-noise earplugs, silicone rubber fetal head suction
EPDMAutomobile dust cover, fenders, cushions, instrument panels, external adjustment, external sealing strips, dust hoses, bellows, airbags, interior and exterior trims, industrial products, wires and cables, mechanical equipment, fluid transportation, household appliances, sports equipment, five-jin appliances, household appliances, food, and medical supplies
Santoprene TPVauto parts, automotive sealing strip/seal series materials, high-voltage ignition wires, dust covers, air intake pipes, ventilation pipes, buffers, steering wheel foreskin, fenders, etc.
Polyethylene (PE)Packaging, foil
PUPackaging, soundproofing, filtration
Polybutylene (PBT)Electrical accessories, machine version accessories
PPSOutdoor accessories, outdoor shells
TPEEIn the automotive industry: it can be used for CVJ dust cover, steering gear cover, dust cover, traction coupling cover, engine intake air duct, airbag cover, shock absorber plate, muffler gear, pipe plug, plug, ball joint, Window glass shock-absorbing seat, shock-absorbing chassis;
Electronic and electrical industry: mainly used for electric welding handle cable sheath, optical cable sheath, electrical elastic button, cordless telephone radome, wire and cable, instruments and equipment, etc.;
Industrial manufacturing: mainly used as seals, conveyor belts, elevator slides, high-pressure washers, silencer gears for quartz clocks, cigarette machine springs, etc.;
Film: Using the chemical properties of the soft segment in TPEE, it can be made into a film with excellent waterproof and breathable properties;
Garden tools: hand board saws, high branch shears, spades, shovels and pruning shears, hedge trimmers, garden saws, garden shears, grass rakes, steel forks, pruning shears, flower snow shovels, small hoes, pruning saws, grass shears Wait for the handle to be rubberized.
Sanitary ware: shower head, spray gun, sewage pipe, hose, etc.
Daily necessities: handles (knife combs, scissors, suitcases, toothbrush handles, etc.), foot pads, ice trays, table mats, bottle cap linings, backpack bases, and other rubber and plastic products.
Moving equipment: handlebars (golf, various rackets, bicycles, ski equipment, skating equipment, etc.), diving equipment (fins, frog mirrors, snorkels, flashlights, etc.), brake blocks, sports pads, etc.
LCPConnector series, BOBBIN, connectors, SIMM socket, LED (MID), QFP socket, microwave oven bracket, hot air cylinder, hair iron, injection molding circuit components (MID), light sensor (MID), crystal oscillator base (MID) ), integrated block support base, headphone parts, fiber optic cable stretching parts, fiber optic cable connectors, fiber optic cable connectors, dot matrix printer coil, dot matrix printer base, fan, camera shutter plate, pump parts, USB series, CD Pickup parts, printed circuit boards, packaging materials for coil bobbins, optical fiber cable connector sheaths and high-strength components, jet engine parts and other electronic appliances, quick connectors, coils, switches, sockets, pump parts, valve parts, automotive fuel peripheral parts, electric stove
Polysulfone (PSU/PSF)Machinery industry: used in the manufacture of watch casings and parts, copiers and cameras, and other parts, used as hot water valves for food machinery, refrigeration system appliances, transmission parts, etc. Bearings, as well as piston rings, bearing cages, hot water measuring instruments, warm water pump bodies, impellers, etc.
Electronic appliances: It can be used to manufacture integral circuit boards for televisions, audio, and computers, as well as casings for electronic and electrical equipment, electroplating tanks, containers and coil formers for oscilloscopes, capacitor films and coatings for wires and cables, various Small precision electronic components. High temperature-resistant coil formers, switches, connectors, etc.
Transportation: used in the manufacture of instrument panels, differential covers, guard plates, ball bearing cages, engine gears, thrust rings, etc. on automobiles; hot air ducts and frame windows on aircraft.
Medical equipment: gas masks, sterilizers contacting eye tablets, endoscope parts, artificial heart valves, artificial dentures, etc.; artificial respirators, blood pressure tubes, dental mirror brackets, syringes, etc.
ASAHeat-generating electrical enclosures, automotive components, such as rearview mirrors, front rails of water tanks
Radome shell; building materials and automotive parts, construction parts, outdoor sports goods, gardening parts, outdoor antenna parts, electronic and electrical products, bathroom products, etc.
GPPSCan be used for daily necessities, electrical, instrument housing, toys, lamps, household appliances, stationery, cosmetic containers, indoor and outdoor decorations, fruit trays, optical parts (such as prisms, lenses), lenses, window mirrors and molding, car lights, telecommunication accessories, electrical High-frequency capacitor film, high-frequency insulating material, TV and other containers, waveguides, chemical containers, etc., home appliance shells, electrical appliances, instrumentation accessories, refrigerator linings, plates, TVs, tape recorders, telephone casings, cultural and educational supplies, toys, packaging containers, daily necessities, furniture, tableware, trays, tableware, structural foam products, etc.
Polyphenylene oxiole (PPO)Gears, blower blades, pipes, valves, screws, and other fasteners and connections, etc.
AcetalEngineering plastics, manufacturing precision parts
Thermoplastic Urethane (TPU)Shoe materials, garments, inflatable toys, water, and underwater sports equipment, medical equipment, fitness equipment, car seat materials, umbrellas, luggage, bags, etc.
PEEKMechanical parts, such as automobile gears, oil screens, shift starter discs, aircraft engine parts, automatic washing machine runners, aerospace, medical, nursing supplies, and medical equipment parts.
HIPSPackaging, disposables, instruments and meters, household appliances, toys, entertainment products, safety razors, bottle caps, freezer walls, interior parts, TV series housings, air conditioning parts, business machines, and automotive interior parts.

In addition to common engineering plastics, biodegradable plastics can also be used in injection molding production. With the increasing global demands for low-carbon, energy-saving, and environmental protection, and people’s continuous improvement in the pursuit of quality of life, biodegradable plastics, as a new type of green environmental protection material, are gradually replacing traditional plastic products.
Biodegradable plastics are more and more widely used, such as agricultural mulch and disposable plastic packaging, golf ball nails and tee, seedling fixing materials for tropical rain forest afforestation, agriculture, forestry and fishery, water retention materials, nursery pots, seedbeds, rope nets, Pesticide and fertilizer slow-release materials, packaging industry, shopping bags, garbage bags, compost bags, disposable lunch boxes, instant noodle bowls, buffer packaging materials, hygiene products, feminine hygiene products, baby diapers, medical mattresses, disposable haircuts, Medical materials, bandages, clips, small sticks for cotton swabs, gloves, drug release materials, and surgical sutures and fracture fixation materials.
Industrial production is inseparable from plastics. The research and development of biodegradable plastics reduce environmental pollution. Products originate from nature, return to nature, and reduce usage costs.


Gary Liao

Gary Liao

Gary Liao is the Engineering Manager of TDL Company and has more than 20 years of mold design experience.

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