In today's life, products made from pet plastic are gradually becoming an indispensable part. This material is used to manufacture a wide variety of products. Here we will give you some information about pet plastics!
1. What is PET plastic?
Polyethylene terephthalate (known as PET, PETE or PETP or PET-P) is a thermoplastic, belongs to the Polyester resin type and is used in the synthesis of fiber, beverage, food, and liquids, can be pressed. spray to shape and in industry often in combination with fiberglass.
2. Characteristics of PET plastic
PET plastic is a thermoplastic, a plastic that softens into a liquid under the effect of high temperature and hardens when cooled. Thermoplastics have more than 40 types, by 1900, thermoplastics were widely used. In the common thermoplastic resin line, PET plastic belongs to engineering plastic line, besides there are similar lines of PET like: Polyoxymethylene (POM), (Poly acetate), Polycarbonate (PC), Polyamide (PA), ( Nylon), Polybutylene terephthalate (PBT), Polyethylene terephtalate (PET).
- PET plastic has high mechanical strength, is able to withstand tear force and impact force, withstand high abrasion, has high hardness.
- PET resin is inert to the food environment and is transparent.
- PET plastic resists O2 and CO2 better than other plastics.
- When heated to 200ºC or cooled at - 90ºC, the chemical structure of the PET circuit remains unchanged, the vapor barrier resistance remains unchanged when the temperature is about 100ºC.
3. Is Pet material safe?
Pet plastic material has been researched and evaluated for quality and safety when used carefully and carefully before being widely used, so you can completely rest assured when using the products. is made of this material
4. PET plastic cup production application process
Raw material (Pet plastic resins) must be a genuine plastic not mixed with scrap plastic to avoid heavy metals in scrap plastic contaminating drinking water when used to produce bottled drinking water. Therefore, the production of PET plastic cups is relatively high cost because 100% of genuine plastic is used.
PET pellets are fed into the heater up to 180 degrees C within 3-4 hours. It is then fed into a semi-continuous working embryo generator. In the machine, through heating rings, the plastic is converted from a solid to a liquid.
Under the pressure of the cylinder, plastic is pumped into the mold through grooves, doors with small cross-section. Pre-defined preforming zone - the mold closes before the plastic is injected. At the end of the workpiece is cooled again by a cooling system.
The embryo cycle is short from a few tens of seconds to a few minutes. Each cycle produces the number of workpieces depending on the type of mold, from 2 to 16 workpieces.
The formed embryo is automatically discharged into a container, where the embryo is checked for air bubbles and burrs cut. The satisfactory products will be allowed to cool in the air for a while and then bagged and then transferred to the glass blowing stage.
5. Common applications of PET plastic
Widely used as a beverage container, mineral water bottle, soda bottle, carbonated beverage, can be injection-molded to shape packaging,
Widely used in the manufacture of plastic food trays.
Used in the manufacture of craft yarns, in textile and bag industries.
Use the product only once, do not use it over and over again.
Thanks to the fabrication mechanism of the same cheap price, not too expensive to produce, this type of food packaging is used quite a lot. Currently, some popular cards such as employee cards, ATM cards, ... are also made of Pet plastic because of their durability, impact resistance and good abrasion.
6. Be careful when using and manufacturing PET plastic cups
PET plastic (short for polyethylene terephthalate) is one of the most commonly used plastics for household goods, such as mineral water bottles, soft drinks, beer and packaging.
This is a symbol for a single use plastic, so if used over and over again, it can increase the risk of dissolving heavy metals and the chemicals that make up them. These substances affect the balance of hormones in the body.
PET plastics are difficult to clean, their recycling level is also very low (only about 20%) so it's best to get rid of them immediately
Hope the above sharing will help you understand more about PET plastic. With this popular application you can easily manufacture your own essentials. Let's find out for the most suitable application.
