Poliéster — história, estrutura, propriedades e usos

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PETResin

~255 °CTm

Melt-dripFire

Dacron / TeryleneIcon

MicrofibresIssue

textilesFamily

Poliéster is one of 32 materials in this atlas, grouped under textiles: history, structure, measured properties, process routes, uses, safety and market — not a product catalogue.

Scores compare Poliéster with the rest of the atlas on strength, heat, fire behaviour, insulation, workability and circularity. They are editorial, not certificates.

Seven chapters follow. Fire and insulation claims name test families (Euroclass, ASTM E84, ISO 5660, KS F) rather than inventing a single safety number.

Introdução profunda

Deep dive: Poliéster

Poliéster ((C10H8O4)n PET) is a family of grades whose density ~1.38 g/cm³, heat band ~250–260 °C, and fire letter melts and drips unless FR.

What “the material” actually is

Poliéster is sold as grades, not as a single substance. Chemistry (C10H8O4)n PET, density ~1.38 g/cm³, heat band ~250–260 °C.

This atlas treats Poliéster as a system: mill route, coatings, tests and the cavity it sits in.

Heat, fire and insulation

Conductivity note: low solid; fabrics trap air. Insulation score 50/100 is relative to 32 entries — metals lose, VIPs and aerogels win.

Fire letter in editorial use: melts and drips unless FR. Do not equate A1 with “safe in a blaze” or E with “illegal”. Assemblies decide.

How it is made and used

Origin: Whinfield & Dickson 1941 / DuPont Dacron, United Kingdom / US. The process chapter follows feedstock → conversion → forming → finish → install.

Uses span buildings to defence / safety. Pairings matter: nylon.

Market and circularity

Producers below are landmarks, not an endorsement ranking. Prices are bands, not live quotes.

Circularity mark 34/100. Ask which scrap, which certificate, which year.

Perfil

Resistência 58

Resistência ao calor 42

Desempenho ao fogo 24

Isolamento 50

Trabalhabilidade 88

Circularidade 34

Perguntas frequentes

Is Poliéster non-combustible?

Declared reaction class in this atlas: melts and drips unless FR. Assemblies still need resistance tests.

Does Poliéster insulate?

Thermal mark 50/100 versus the atlas. Conductivity note: low solid; fabrics trap air.

What is the density band?

~1.38 g/cm³

How is it made?

Origin story: Whinfield & Dickson 1941 / DuPont Dacron (United Kingdom / US).

Can it be recycled?

Circularity mark 34/100 — editorial, route-specific.

Typical melting or failure heat?

~250–260 °C

What should it be paired with?

nylon: The polyamide rival: tougher wet, different dye class.

Where is it specified?

Buildings, transport, energy and consumer goods — see the uses chapter.

Ícones

Terylene

United Kingdom · 1941–

Terylene is a reference point in the public image of Poliéster.

Dacron sailcloth

United States · 1950s–

Dacron sailcloth is a reference point in the public image of Poliéster.

Polar fleece

United States · 1980s–

Polar fleece is a reference point in the public image of Poliéster.

PET bottle

United States · 1973–

PET bottle is a reference point in the public image of Poliéster.

Suiting blend

Global · 1960s–

Suiting blend is a reference point in the public image of Poliéster.

Seat belt HT

Global · 1960s–

Seat belt HT is a reference point in the public image of Poliéster.

Geotextile

Global · 1970s–

Geotextile is a reference point in the public image of Poliéster.

rPET jersey

Global · 2000s–

rPET jersey is a reference point in the public image of Poliéster.

Ligue ou desligue ícones — cada barra reescala para o líder da sua seleção.

5 / 8

Confrontos

Mesma família, outras notas — escolha um duelo.

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Poliéster vs Algodão

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