Products designed with plastic injection
Classification of plastic species
• Low density polyethylene
Polyethylenes are the most widely used plastics in the world. This type of plastic has the most common chemical structure of plastic polymer, which makes it very ordinary and cheap to process.
Polypropylene is more resistant to heat and is used for hot dishes. In terms of strength, it is in the middle. This plastic is also used in disposable luggage diapers.
This plastic is used to make plates, egg cartons, cups and disposable luggage containers, packaging and cycling hats. Polystyrene gives back styrene to fatty foods and heat, which is toxic to the brain and nervous system; It can also adversely affect genes, lungs, liver and immune system. It also has a low score in terms of recycling.
Properties of thermoplastics
Some thermoplastics are expensive and rigid and are used in place of metal, and others in products with which we have a secret and activity every day. The properties of thermoplastics are:
They have the practical benefits of most.
– They have high strength.
– They are resistant to heat and do not die.
– They bend easily.
– They are highly recyclable.
– They are models.
– They have low processing costs.
– They have high chemical resistance.
– Occasionally they become flexible to heat and difficult to burn.
– They break under high pressure.
– Some low-quality species are melted.
– They are more expensive than thermostats.
Properties of thermostats
– They are cumbersome and inflexible.
– They are resistant to heat.
– are reliable.
– They have dimensional stability.
– They are resistant to fungi.
– They have good color stability.
Properties of elastomers
Elastomers have elastic properties. The delicate properties of elastomers are influenced by the type of rubber, the components, the way it is applied, the manufacturing process, and the shape and design of the material.
Rare plastics are a danger to the environment and the possibility of their survival in nature
When you look at garbage separately and perform this operation, you have certainly noticed that the bowl for several days has a much larger number of bags containing plastic materials than the paper, metal, glass and kitchen garbage bags. Also, one day when you hear the news in different parts of the world, you will realize that the earth is in danger far from being a joke, and people in most parts of the world are now taking steps to save the earth.
One of the key issues in this direction is the reduction of waste construction, the decomposition of which in nature takes a great deal of time. Among the sins of the blessed is the neck of plastics. Plastic can even lead to the extinction of various animals such as birds and aquatic animals.
Today, biodegradable plastics are a proposed alternative to plain plastics. Conventional plastics can remain in nature for hundreds of years and cause biodegradation in the biodegradable environment. Among thermoplastics, they have the ability to recover faster than other types of plastics.
You can use the codes on the label or the label to find out what materials were used to make the plastic products. These codes date back to periods 1 to 7 and are enclosed in a triangular symbol that allows the product to be recycled. But let’s see what information each code contains.
Code 1 on plastic products
Code 1 means polyethylene terephthalate, which is actually a type of polyester.
Examples of applications: PET is especially used in making bottles (for example, water, sauce, oil or even detergents) and packaging containers (for example, cosmetics).
Some properties: Among the properties of this group of potent plastics are lightness, transparency, suffering and resistance to solvents. With their recycling, they could build new bottles or polyester fiber.
Potential hazards: Code 1 plastic products are disposable because they are defective to clean. In fact, they do not cleanse well except with well-used detergents. In addition, they may release toxic substances by washing or high heat.
Code 2 # on plastic products
Code # 2 means high-density polyethylene, which is thermoplastic polyethylene (changes heat to a flexible position and cools to solid conditions) and is made from oil.
Examples of applications: It is used in the formation of furniture, milk containers, bottles of liquids such as oil, plastic bags and bottles of detergents such as shampoo. In the formation of accessories that should be durable and weather resistant are also used, such as garden chairs.
Some characteristics: This set of plastics is tiring and opaque and does not see wounds in heat or extreme cold. Their recycled steps are also relatively clean and low cost.
Potential Risks: Code 2 plastic products are among the rarest and most dangerous forms of plastic for the healthy, as they are less likely to release harmful chemicals on their own.
Code 3 on plastic products
Code 3 means polyvinyl chloride, which is a type of thermoplastic polymer and is made flexible by the addition of phthalates (a type of additive).
Examples of applications: PVC is found in products such as treasury curtains, furniture, food holders and bottles (for example, oils and shampoos). In addition, it formed a framework