Ethan Clarke
Plastic is everywhere, and it's important to understand the different types and their potential harm to our health and the environment. Most plastics are marked with a number from 1 to 7 inside a triangle, which is a resin code indicating the type of plastic and its recyclability. Plastic #7 is a catch-all category for plastics that don't fit into the first six categories, including various materials like nylon, polycarbonate, melamine, and PLA. While some #7 plastics are recyclable, others are not, and they may contain harmful chemicals. Understanding these codes helps us make informed choices to protect our health and reduce environmental impact.
| Characteristics | Values |
|---|---|
| Plastic Number | 7 |
| Identification | Chasing arrows with a seven inside |
| Type of Plastic | Polycarbonate (PC), Acrylic (PMMA), Acetal (POM), Nylon (PA), Acrylonitrile Butadiene Styrene (ABS), Polylactic Acid (PLA) |
| Properties | Transparent, strong, scratch-resistant, shatter-resistant, heat-resistant, chemical-resistant, scratch-resistant |
| Uses | Baby bottles, plastic CDs, eyeglasses, car parts, exterior lighting fixtures, riot gear, eyeglasses, gears, rubber reinforcement, clothing, rope, thread, 3D printing, injection mould manufacturing |
| Recyclability | Non-recyclable, Biodegradable |
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What You'll Learn
- Plastic #7 is a catch-all category for plastics outside of numbers 1-6
- Plastic #7 includes non-recyclable, recyclable, and biodegradable types
- Plastic #5 is used in food packaging and is microwave-safe
- Plastic #3, or PVC, is dangerous and one of the least recyclable plastics
- Plastic #2 can be recycled up to 10 times and is turned into new containers
Plastic #7 is a catch-all category for plastics outside of numbers 1-6
Plastic #7 includes recyclable, non-recyclable, and biodegradable plastics, as well as multi-layer or mixed resin types of plastics. This means that products stamped with a 7 are often made of multiple plastic types or other types of plastic that are difficult to recycle.
Some common plastics that fall under this category include nylon, polycarbonate, melamine, and Acrylonitrile Butadiene Styrene. Everyday items made from plastic #7 include baby bottles, plastic CDs, eyeglasses, car parts, and exterior lighting fixtures.
It is important to note that the presence of a resin code or recycling symbol on a plastic product does not necessarily mean that it can be recycled. The specific number inside the triangle is what indicates the type of plastic and its recyclability. While some plastics are considered safer and more environmentally friendly, all plastic products can leach toxic chemicals when heated or damaged. Therefore, it is recommended to transition to alternative materials such as metal and glass whenever possible.
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Plastic #7 includes non-recyclable, recyclable, and biodegradable types
Plastic #7 is a catch-all category for all types of plastics that do not fit into the first six categories. It includes a wide range of everyday items, such as baby bottles, plastic CDs, eyeglasses, car parts, and exterior lighting fixtures. Plastic #7 also includes common plastics such as nylon, polycarbonate, and melamine.
The category of plastic #7 includes both non-recyclable and recyclable types. While some plastic #7 items cannot be recycled in your curbside recycling bin, others are accepted by recycling programs. For example, some plastic #7 items, such as baby bottles and plastic CDs, may be recyclable through specialized programs or facilities. It's important to check with your local waste recycling facilities to determine their specific capabilities and guidelines.
The presence of a resin code or a number inside the recycling symbol on a plastic item indicates that it belongs to one of the seven groups of plastics in the coding system. However, the recyclability of an item depends on the number inside the triangle, as each number corresponds to a different type of plastic with varying recyclability properties.
Plastic #7 can also include biodegradable types, offering a more environmentally friendly alternative to non-biodegradable plastics. Biodegradable plastics are designed to break down into smaller, less harmful components over time, reducing their environmental impact. However, it's important to note that not all biodegradable plastics are created equal, and some may take significantly longer to degrade than others.
Overall, plastic #7 encompasses a diverse range of plastic types, including non-recyclable, recyclable, and biodegradable varieties. Understanding the specific characteristics and appropriate disposal methods for each type of plastic within this category is essential for making informed choices that minimize negative health and environmental impacts.
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Plastic #5 is used in food packaging and is microwave-safe
Plastic is everywhere, from our fridges to our cupboards. It is important to understand the different types of plastics and their potential harm. Plastic #5, also known as polypropylene (PP), is frequently used in food packaging and is considered microwave-safe. It is supposed to be heat and cold resistant, safe for repeated use, microwaving, and dishwashing. The presence of the #5 recycling code indicates that the heated product will not deform in the microwave.
However, it is important to note that even microwavable safe plastic can cause asthma and hormone disruption. Studies have shown that all plastics, when put under stress, such as freezing or microwaving, can leach chemicals into food. These chemicals, such as Bisphenol A (BPA) and phthalates, are endocrine disruptors and have been linked to various health issues, including infertility, thyroid diseases, cancer, and neurobehavioral disorders.
To ensure food safety, it is recommended to substitute plastic containers with glass or ceramic containers when possible. Additionally, individuals should refrain from using plastic film or lids to cover food in the microwave, as condensation can cause chemical leachate to drip into the food.
While Plastic #5 is widely used and considered microwave-safe, it is always advisable to carefully read the labels and instructions provided by the manufacturer. It is also important to consider the potential health risks associated with plastic usage and to make conscious choices to reduce plastic consumption whenever possible.
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Plastic #3, or PVC, is dangerous and one of the least recyclable plastics
Polyvinyl Chloride, or PVC, is a type of plastic denoted by the number 3 in a recycling symbol. This symbol is a triangle of chasing arrows with a number, in this case, a 3, in the middle. This number corresponds to a different plastic variety. However, the presence of a recycling symbol does not necessarily mean that the product can be recycled.
PVC is dangerous to humans and is one of the least recyclable plastics. It is not widely recycled due to its chemical composition. PVC contains chlorine, which is not easily dissociated under normal conditions of use. It is also the only one of the seven plastics that must use a plasticizer, allowing it to change its state from soft and elastic to hard and brittle.
PVC is very dangerous to humans. It contains softening chemicals, such as phthalates, which cause problems with the hormonal system. Other highly toxic chemicals, such as DEHA, can be produced during the whole plastic #3 lifecycle. These chemicals affect children's development, endocrine and immune systems, and can also cause cancer.
Due to these health risks, it is recommended to avoid using PVC products, especially for cooking and storing food. It is also important to check that baby toys and inflatable items do not contain PVC. Instead, opt for safer alternatives, especially for household items and toys.
PVC is also harmful to the environment. It is difficult to recycle due to its chemical composition and the different additives it contains. As a result, it is recommended to use PVC products as seldom as possible and to check with local waste management services before attempting to recycle them.
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Plastic #2 can be recycled up to 10 times and is turned into new containers
Plastic #2, also known as HDPE (high-density polyethylene), is one of the safest and easiest plastics to recycle. It has a high strength-to-density ratio, making it highly durable and reliable. This quality also gives it superb wear resistance, allowing it to withstand heating and freezing. As a result, HDPE products can be used in various weather conditions without easily degrading.
The recycling logo on Plastic #2 indicates that it can be efficiently recycled and reused up to 10 times. Clear containers made from HDPE #2 plastic are recycled back into new containers. However, coloured HDPE #2 plastic is turned into other products such as pipes, lumber, toys, lawn items, pens, and floor tiles.
HDPE #2 plastic is commonly used in the manufacturing of sturdy bottles for cosmetics and household cleaners. It is also found in milk jugs, shampoo bottles, detergent bottles, and other cleaning product containers. Due to its durability, it is well-suited for these applications.
Despite the recyclability of HDPE #2 plastic, it is important to note that not all recycling facilities accept all types of plastic. Some plastics, like Styrofoam, are difficult for facilities to process. Additionally, bags made of certain plastics, such as grocery bags, can cause tangles in recycling equipment and are therefore not recommended for standard recycling bins.
The presence of a resin code or recycling symbol on plastic does not guarantee that it can be reprocessed. It simply indicates the potential for recyclability. The number within the recycling symbol, typically ranging from 1 to 7, is what specifies the type of plastic and its recyclability.
While Plastic #2 is considered safer and more recyclable than some other plastics, it is important to remember that all plastic products can leach toxic chemicals when heated or damaged. Therefore, it is advisable to opt for materials like metal and glass whenever possible.
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Frequently asked questions
7PC on plastic means that the plastic is a combination of Polycarbonate (PC) and Acrylonitrile Butadiene Styrene (ABS). PC is transparent and strong, while ABS is resistant to corrosive chemicals and high impacts.
The other types of plastic are PETE, HDPE, PVC, LDPE, PP, and PS.
PETE, or PET, is used for beverage bottles, food oil bottles, and food packaging.
HDPE is considered safe and can be recycled. It is often used for milk jugs, shampoo bottles, and detergent bottles.
PP plastic is used for food packaging and is microwave-safe. However, studies have shown that it can cause asthma and hormone disruption, so it is better to use glass containers instead.
