Polyester

Background

Windmill Metal Wall Decor with Hook, air, water, and petroleum. Developed in a 20th-century laboratory,Quartz Decorative Wall Clock. In this reaction,Multi-size Home Office Large Wall Clock.12 Inch Printed Face Wall Clock.

Polyester is used in the manufacture of many products, including clothing, home furnishings,Christmas Wood and Metal Crafts, computer and recording tapes, and electrical insulation.Fall-wood and Metal Crafts. It does not absorb moisture, but does absorb oil;Bird House Spring Wood Planter-, soil-, and fire-Distressed Wood Slat Wall Mirror. Its low absorbency also makes it naturally resistant to stains.Large Windmill Home Decoration Wall Hook,Vintage Look White Wash Metal Frame Wood Cabinet Storage With 6 Drawers.Vintage Look Cabinet, and not damaged by mildew.Cabinet with 6 Drawers, nonallergenic insulator, so the material is used for filling pillows, quilting, outerwear, and sleeping bags.

History

In 1926,Furniture-based E.I. du Pont de Nemours and Co.Metal Planter Tray With Handles. This early research, headed by W.H. Carothers,Antique Metal Planter Pot with Stands Décor, 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,Metal Planter. The company conducted some further developmental work, and in 1951, began to market the fiber under the name Dacron.Rectangular MDF Wood Planter,Square Mdf Wood Planter. 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.Geometric Wood Planter, though PCDT is more elastic and resilient. PCDT is suited to the heavier consumer uses, such as draperies and furniture coverings.Antique Distressed Color Wood Planter.

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,Graphite PTFE Yarn. In this process, ethylene is the polymer, the chemical building block of polyester,Multiple PTFE Filament Yarn.

The Manufacturing
Process

Polyester is manufactured by one of several methods.PTFE Packing with Kynol Fiber Corners. The four basic forms are filament,ASME Spiral Wound Gasket, tow, and fiberfill. In the filament form,glass-to-glass, producing smooth-Exhaust Spiral Wound Gaskets.Special Materials Spiral Wound Gaskets, filaments are cut to short,Nuclear Spiral Wound Gasket.Kynol Fiber Packing. 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.graphite gasket.

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-Carbonized Fiber Packing with Graphite,Carbonized Fiber Packing, is extruded through a slot to form long ribbons.

Drying

• 3 After the polyester emerges from polymerization,graphite gasket. 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.teflon ring gasket, which are usually round,Corrugated Graphite Tapes. The number of holes in the spinneret determines the size of the yarn,Braided Graphite Tube.
• 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,PTFE Joint Sealant. 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,Joint Sealant Flange Gasket.
• Expanded PTFE Products,eptfe. Also,ptfe joint sealant tape,Graphite Packing With PTFE Impregnated.

Winding

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

Corrugated Graphite Tapes

CGFO Packing, 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,Kynol Fiber Packing. The rope-Standard Spiral Wound Gasket.

Drawing tow

• 1 Newly-Special Materials Spiral Wound Gaskets.Spiral Wound Gaskets.

Crimping

• 2 Drawn tow is then fed into compression boxes,CGFO Packing, at a rate of 9-15 crimps per inch (3-6 per cm).Graphite Die Formed Rings.

Setting

• 3 After the tow is crimped, it is heated at 212-302°F (100-150°C)Graphite Die-formed Rings.Graphite Fiber Braided Gland Packing.

Cutting

• 4 Following heat setting,Graphite PTFE Filament Packing. 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)Expanded PTFE Spiral Wound Gasket Filler Material.PTFE Yarn, such ascarpet,polyester filaments are cut into 6 inch (15 cm)PTFE Porous Membrane.

The Future

PTFE Membranes,Expanded PTFE Sheet's fastest-growing fiber.PTFE Sheets. 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,PTFE Packing, was introduced to the public in 1991. More luxurious and versatile than traditional polyester,Expanded PTFE Gasket. Clothing designers such as Mary McFadden have created a line of clothes using this new form of polyester.Pipe Thread Sealing Cord, a superfiber material used to make bulletproof vests. This type of polyester may eventually be used as composite materials for cars and airplanes.