PET Plastic Steel Belt is a new kind of environmental protection packaging material, which has replaced steel strapping in many industries. It has many advantages: non-toxic, tasteless, transparent, bright and high temperature resistant. It is suitable for packaging of products and materials like papermaking, aluminum ingots, steel pipes, profiles, glass, building materials, metal products, tobacco, chemical fiber and cotton, etc.
Its strong tensile strength, not only can prevent the product from breaking, but also it has great ductility and resist impact, which is important for the safety of product transportation. It is also safe for use in wet environments, because it is water resistant and can withstand abrasions. In addition, it is less expensive than steel belts and can save customers a lot of packaging costs.
A major benefit of PET strap is that it can hold more weight than steel straps, and its tensile strength will not decrease as it stretches over time. This makes it a better choice for long-term storage and shipping applications, such as securing heavy loads while travelling over long distances on highways. In contrast, steel straps lose their tension over time and can cause damage to the cargo. PET strapping also does not have sharp edges or rust, which could cut or stain the cargo.
Another advantage of PET is that it can reshape to fit the contour of a load. This is especially helpful when transporting irregular-shaped or bulky items. In comparison, steel straps can be very difficult to work with and may have sharp edges that can cut or injure workers when handling them. Furthermore, PET straps do not leave sharp splinters when they are cut, which could injure workers and damage equipment, such as forklift trucks.
Moreover, PET has excellent weather resistance and can withstand abrasions from mechanical handling. Its tensile strength is also stable over a wide range of temperatures. It is also recyclable, which is a plus for environmentally conscious consumers.
To make PET, manufacturers synthesise a polymer known as terephthalic acid. This is modified using a number of additives to create different properties. One of the most common is isophthalic acid, which can replace some of the 1,4-(para-) linked terephthalate units. This changes the structure of the chain and disturbs crystallisation, lowering its melting point. In addition, other additives can reduce the polymer's brittleness and improve its toughness. These modifications can also improve its thermal stability and its resistance to moisture. The resulting polymer is then extruded into thin films to be used in a variety of applications. It is commonly used for food packaging and as a thermal insulation in buildings and vehicles. It is also used as a film in solar cell production. The material is also a popular choice for 3D printing filaments. It can also be aluminized to reduce its permeability and make it reflective or opaque. It is also used as a waterproofing barrier for submarine cables.
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