PBT can also be made into yarn. This has a natural stretch similar to Lycra and can be incorporated into sportswear. Due to its chlorine resistance it is commonly found in swimwear.
Polyethylene is one of the widely used plastics, which includes 3 groups: light polyethylene (LDPE), heavy polyethylene (HDPE) and linear polyethylene (LLDPE).
Polyethylene terephthalate is a polymer that is often used to produce 70% polyester fibers, 22% bottle resin and 6% film. But in Iran it is mostly used to make bottles.
Historically, PMMA was an important improvement in the design of aircraft windows, making possible such designs as the bombardier’s transparent nose compartment in the Boeing B-17 Flying Fortress. Modern aircraft transparencies often use stretched acrylic plies.
In less than a decade, polyolefin elastomers have become the primary material for automotive exterior and interior applications (primarily in thermoplastic olefins through impact modification of polypropylene), wire and cable, extruded and molded goods, film applications. , medical goods, adhesives, shoes and floors, etc. were used.
Polypropylene uses range from plastic packaging, plastic parts for machinery and equipment and even fibers and textiles. It is part of the main and widely used polymers, which includes polypropylene homo-polymer, copolymer, textile polypropylene, sheets and tubes.
In addition, POM has the ability to maintain properties at high temperatures for long periods of time, mechanical resistance to long-term stresses, and weather resistance, which make it a suitable choice for many sensitive engineering parts
It is an aromatic synthetic polymer of mono-styrene (a petrochemical material) that exists in three common types: GPPS, resistant HIPS and expanded EPS. Under ASTM standards, polystyrene is regarded as not biodegradable.
PRINCE helps to control growth of different kinds of weeds. It is a selective pre-emergence broad spectrum herbicide for the control of annual grasses, sedges and broad leaved weed in Transplant Rice.
PYRIFEN is a hormonal insecticide product that is suitable for resistance management with low consumption and long duration. It should be used when the pest is in its early stages of development and the population of adult insects has not yet increased.
This paper is made with special machines and its surface finish is very strong and resistant to glue penetration and absorption. Different types of this paper are made in different colors and with different quality from mechanical pulp and chemical pulp. The weight of this paper varies from 70 to 170 grams.
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