How Does Expanded Polystyrene EPS Foam Come to Life?

How Petrochemicals can change the world .

For all kinds of Polymer & Petrochemical Raw materials, world wide.

EPS-EXPANDED POLYSTYRENE

Ali Trading & Engineering Company - (ATEC)

Expanded Polystyrene - EPS

⚠ PetroChemical RawMaterials for Insulation Board, ( Styrofoam ) Pipes,EPS Packaging & EPS Insulated Sandwich Panel.

♻ Identifiers ; Abbreviations - PS,
EPS- Expanded(E) Polystyrene(PS).

♻ Properties ; Molecular Formula.

♻ Density : 0.96-1.04 g/cm3

♻ Melting Point : ~ 240 C• ( Decomposes at lower )

♻ Related Compound : Styrene(monomer). EPS is a synthetic aromatic polymer made from the monomer styrene.

♻ General Purpose :
CLEAR ✳ HARD ✳ BRITTLE

🌄  Safety : According to a plastic food service products website of the American Chemistry Council:

" Based on scientific tests over five decades, government safety agencies have determined that polystyrene is safe for use in foodservice products.

For example, polystyrene meets the standards of the U.S. Food and Drug Administration and the European Commission/European Food Safety Authority for use in packaging to store and serve food.

The Hong Kong Food and Environmental Hygiene Department recently reviewed the safety of serving various foods in polystyrene foodservice products and reached the same conclusion as the U.S. FDA. "

We are the leading EPS Supplier & Trader in Bangladesh.

Mail us for inquiry : info.atecbd@gmail.com
Hotline : 01772553603
Skype: atecbd1

PRODUCT

LDPE

EID MUBAROK

We will be close for Eid vacation from 

27/07/2014 to 04/08/2014. 

New Offer for - Thermoplastic Polyester Elastomer ( TPEE ) / ATEC-BD .

EPS / GPPS / HIPS / LDPE / LLDPE / HDPE / PVC / TPEE / PIT / COLORFUL  SPECKLE / PP / MONO-FILAMENT  YARN  and so on ..................... 

www.Atec-bd.com

 Item Name : Thermoplastic Polyester Elastomer ( TPEE ) 

Applications :

1. TPE - E find large Application in the Automotive sector and in Household Appliances Sector .

 

 

 

 

2. TPE-E are used in Snowmobile tracks where stiffness and abrasion resistance is at a Premium .

3. They are also widely used for catheters where nylon block co-polymers offer a range of softness ideal for Patients .

4. TPE-E is also finding more and more uses as an electrical cable jacket/inner insulation. TPE-E is also used in some headphone cables. It is also used for sport equipments .

 

 

Origin : CHINA / TAIWAN / GERMAN / CANADA 

Minimum Order : 17 Tons .
Payment : L/C at sight .
Shipment : After receiving LC , with in 30 day .
Mail us for Inquiry : ceo.atecbd@gmail.com 

Like us on :  www.facebook.com/atecbd

 

 

TPE-E ( Thermoplastic Polyester Elastomer), sometimes referred to as thermoplastic rubbers, are a class of co polymers or a physical mix of polymers (usually a plastic and a rubber) which consist of materials with both thermoplastic and Elastomeric properties. While most Elastomers are Thermosets, thermoplastics are in contrast relatively easy to use in manufacturing, for example, by injection molding. Thermoplastic Elastomers show both advantages typical of rubbery and plastic materials. The principal difference between thermoset Elastomers and thermoplastic Elastomers is the type of cross linking bond in their structures. In fact, cross linking is a critical structural factor which contributes to impart high elastic properties. The cross link in thermoset polymers is a covalent bond created during the vulcanization process. On the other hand the cross link in thermoplastic Elastomer polymers is a weaker dipole or hydrogen bond or takes place in one of the phases of the material .

PLASTIC INDUSTRY HISTORY

www.facebook.com/atecbd

History of Polymer and Plastics for Students

History of Plastics and Polymers

The Structure of Polymers

Molecular Arrangement of Polymers

Characteristics of Polymers

---

History of Plastics and Polymers :

Plastics are polymers. What is a polymer? The most simple definition of a polymer is something made of many units. Think of a polymer as a chain. Each link of the chain is the "mer" or basic unit that is made of carbon, hydrogen, oxygen, and/or silicon. To make the chain, many links or "mers" are hooked or polymerized together. Polymerization can be demonstrated by linking strips of construction paper together to make paper garlands or hooking together hundreds of paper  clips to form chains.

Polymers have been with us since the beginning of time. Natural polymers include such things as tar and shellac, tortoise shell and horns, as well as tree saps that produce amber and latex. These polymers were processed with heat and pressure into useful articles like hair ornaments and jewelry. Natural polymers began to be chemically modified during the 1800s to produce many materials. The most famous of these were vulcanized rubber, gun cotton, and celluloid. The first semi-synthetic polymer produced was Bakelite in 1909 and was soon followed by the first synthetic fiber, rayon, which was developed in 1911.

Even with these developments, it was not until World War II that significant changes took place in the polymer industry. Prior to World War II, natural substances were generally available; therefore, synthetics that were being developed were not a necessity. Once the world went to war, our natural sources of latex, wool, silk, and other materials were cut off, making the use of synthetics critical. During this time period, we saw the use of nylon, acrylic, neoprene, SBR, polyethylene, and many more polymers take the place of natural materials that were no longer available. Since then, the polymer industry has continued to grow and has evolved into one of the fastest growing industries in the U.S. and in the world.

---

 The Structure of Polymers :

Many common classes of polymers are composed of hydrocarbons. These polymers are specifically made of small units bonded into long chains. Carbon makes up the backbone of the molecule and hydrogen atoms are bonded along the backbone. Below is a diagram of polyethylene, the simplest polymer structure.

There are polymers that contain only carbon and hydrogen. Polypropylene, polybutylene, polystyrene, and polymethylpentene are examples of these. Even though the basic makeup of many polymers is carbon and hydrogen, other elements can also be involved. Oxygen, chlorine, fluorine, nitrogen, silicon, phosphorous, and sulfur are other elements that are found in the molecular makeup of polymers. Polyvinyl chloride (PVC) contains chlorine. Nylon contains nitrogen and oxygen. Teflon contains fluorine. Polyester and polycarbonates contain oxygen. Vulcanized rubber and thiokol contain sulfur. There are also some polymers that, instead of having a carbon backbone, have a silicon or silicon-oxygen backbone. These are considered inorganic polymers. One of the most famous silicon-based polymers is Silly Putty^TM.

---

Molecular Arrangement of Polymers :

Think of how spaghetti noodles look on a plate. This is similar to how polymers can be arranged if they are amorphous. An amorphous arrangement of molecules has no long-range order or form in which the polymer chains arrange themselves. Amorphous polymers are generally transparent. This is an important characteristic for many applications such as food wrap, PlexiglasTM, headlights, and contact lenses. Controlling and quenching the polymerization process can result in amorphous organization. Obviously, not all polymers are transparent. The polymer chains in objects that are translucent and opaque are in a more crystalline arrangement. By definition a crystalline arrangement has atoms, ions, or in this case, molecules in a distinct pattern. You generally think of crystalline structures in salt and gemstones, but not in plastics. Just as quenching can produce amorphous arrangements, processing can control the degree of crystallinity. The higher the degree of crystallinity, the less light can pass through the polymer. Therefore, the degree of translucence or opaqueness of the polymer is directly affected by its crystallinity.

Engineers are always producing better materials by manipulating the molecular structure that affects the final polymer produced. Manufacturers and processors introduce various fillers, reinforcements, and additives into the base polymers to expand product possibilities.