Polyester

Background

Aluminum Bar and Plate Intercooler, air, water, and petroleum. Developed in a 20th-century laboratory,Turbo Intercooler. In this reaction,Radiators with Plastic Tank.Automotive Radiator.

Polyester is used in the manufacture of many products, including clothing, home furnishings,All Aluminum Radiator, computer and recording tapes, and electrical insulation.Cooling System. It does not absorb moisture, but does absorb oil;Cladded Aluminum Radiator Tube-, soil-, and fire-Aluminum Welded Tube. Its low absorbency also makes it naturally resistant to stains.Radiator aluminum flat tube,Aluminum radiator tube.Aluminum intercooler rectangular tube, and not damaged by mildew.Intercooler rectangular tube, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,Composite Aluminium Tube-based E.I. du Pont de Nemours and Co.Harmonica Intercooler Tube. This early research, headed by W.H. Carothers,Aluminium Multi channel Tube, the first synthetic fiber. Soon after, in the years 1939-41, British research chemists took interest in the du Pont studies and conducted their own research in the laboratories of Calico Printers Association, Ltd. This work resulted in the creation of the polyester fiber known in England as Terylene.

In 1946,Extruded Radiator Tubes. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.Extruded Aluminium Tube,Aluminium High Frequency Welded Tube. Today, there are two primary types of polyester, PET (polyethylene terephthalate) and PCDT (poly-1, 4-cyclohexylene-dimethylene terephthalate). PET, the more popular type, is applicable to a wider variety of uses.Micro Channel Condenser Tube, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.Aluminium Micro channel Tube.

Raw Materials

Polyester is a chemical term which can be broken intopoly,meaning many, andester,a basic organic chemical compound. The principle ingredient used in the manufacture of polyester is ethylene,Round Condenser Tube. In this process, ethylene is the polymer, the chemical building block of polyester,Condenser Tube.

The Manufacturing
Process

Polyester is manufactured by one of several methods.Intercooler Tube. The four basic forms are filament,High Frequency Oil Cooler Tube, tow, and fiberfill. In the filament form,aluminum fin, producing smooth-Heat Exchanger Tubes.Aluminum Round Tubes, filaments are cut to short,Aluminum Tubes.Aluminum Foil roll. Tow is a form in which continuous filaments are drawn loosely together. Fiberfill is the voluminous form used in the manufacture of quilts, pillows, and outerwear.3003 aluminum coil.

Manufacturing Filament Yarn

Polymerization

• 1 To form polyester, dimethyl terephthalate is first reacted with ethylene glycol in the presence of a catalyst at a temperature of 302-410°F (150-210°C).
• 2 The resulting chemical, a monomer (single, non-repeating molecule) alcohol, is combined with terephthalic acid and raised to a temperature of 472°F (280°C). Newly-Aluminum Sheet plate,Thin Aluminum Strip, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,Pipe Making Machine. The material is cut into tiny chips and completely dried to prevent irregularities in consistency.

Melt spinning

• 4 Polymer chips are melted at 500-518°F (260-270°C) to form a syrup-like solution.Tube Making Machine, which are usually round,Radiator Tube Making Machine. The number of holes in the spinneret determines the size of the yarn,Tube Cutting Machine.
• 5 At the spinning stage, other chemicals may be added to the solution to make the resulting material flame retardant, antistatic, or easier to dye.

Drawing the fiber

• 6 When polyester emerges from the spinneret,Automatic Leak Testing Machine. The stretching forces the random polyester molecules to align in a parallel formation. This increases the strength, tenacity, and resilience of the fiber. This time, when the filaments dry,Vacuum Brazing Furnace.
• Continuous Brazing Furnace,Heat Treatment Furnace Brazing. Also,Fin Stamping Machine,Radiator Fin Machine.

Winding

• 8 After the polyester yarn is drawn, it is wound on large bobbins or flat-wound packages, ready to be woven into material.

Oil Cooler for Motorcycle

Oil Cooler Radiator, polymerization, drying, and melt spinning (steps 1-4 above) are much the same as in the manufacture of filament yarn. However, in the melt spinning process,Stainless Steel Oil Cooler. The rope-Plate Fin Oil Cooler.

Drawing tow

• 1 Newly-Tube Belt Oil Cooler.Universal Oil Cooler.

Crimping

• 2 Drawn tow is then fed into compression boxes,Aluminum Bar and Plate Intercooler, at a rate of 9-15 crimps per inch (3-6 per cm).Universal Front Mount Intercooler.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Aluminum Radiator Core.Auto Plastic Aluminum Radiator.

Cutting

• 4 Following heat setting,Radiators with Plastic Tank. Polyester that will be blended with cotton is cut in 1.25-1.50 inch (3.2-3.8 cm) pieces; for rayon blends, 2 inch (5 cm)All Aluminum Radiator.Cooling System, such ascarpet,polyester filaments are cut into 6 inch (15 cm)Aluminum Welded Tube.

The Future

Radiator aluminum flat tube,Aluminum intercooler rectangular tube's fastest-growing fiber.Composite condenser Tube. However, polyester has suffered an "image problem" since that time, and clothes made out of polyester were often devalued and even ridiculed. Several new forms of polyester introduced in the early 1990s may help revitalize the image of polyester. A new form of polyester fiber,Heat Sink Aluminum Oil Cooler Tube, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,Aluminium Multi channel Tube. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.Extruded Radiator Tubes, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.