Omar Khalid
Plastic number 7 is used to categorise plastic that does not fit into categories 1 through 6. It is a catch-all category for all types of plastics other than the first six types. This category includes plastics that are recyclable, non-recyclable, and biodegradable. It also includes multi-layer or mixed resin types. Plastic number 7 plastics are often used in car parts or accessories and are not usually recycled in the traditional sense. Some common plastics in this group include nylon, polycarbonate, melamine, and bioplastic.
| Characteristics | Values |
|---|---|
| Plastic Number | 7 |
| Category | "Other" or "Everything else" |
| Composition | Any new plastics, including bioplastics, and could also be comprised of different types of plastics |
| Usage | Baby bottles, plastic CDs, eyeglasses, car parts, exterior lighting fixtures, sports equipment, medical and dental devices, baby and water bottles, and some computer and other technological parts |
| Recyclability | Difficult to recycle, not accepted by most curbside recycling programs |
| Common Plastics | Acrylic, nylon, bioplastic, polycarbonate, melamine, and acrylonitrile butadiene styrene |
| Toxicity | May contain BPA, a highly toxic chemical linked to obesity, cancer, and endocrine problems in fetuses and children |
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What You'll Learn
- Plastic #7 is a catch-all category for plastics other than 1-6
- It includes nylon, polycarbonate, melamine, and Acrylonitrile Butadiene Styrene
- Polycarbonate is a thermoplastic with high impact resistance and pliability
- Plastic #7 is difficult to recycle and is rarely accepted by curbside programs
- Items made from plastic #7 can often be reused or upcycled
Plastic #7 is a catch-all category for plastics other than 1-6
Plastic #7 is a category that includes all plastics that do not fit into categories #1 through #6. It is a catch-all category for plastics other than the first six types. This system was established in the 1980s, and since then, innovation and development have made this category extensive and diverse.
The Plastic #7 category includes various plastics, such as acrylic, nylon, bioplastic, polycarbonate, melamine, and Acrylonitrile Butadiene Styrene. These plastics are often used in car parts, baby bottles, plastic CDs, eyeglasses, and exterior lighting fixtures. Some of these plastics are recyclable, while others are not, and they can be challenging to recycle through traditional curbside recycling programs.
The difficulty in recycling Plastic #7 items is due in part to the diverse range of plastics encompassed by this category. Even if an item is made from recyclable plastic, finding a recycler that accepts it can be difficult. It is often better to reuse or repair these items rather than discard them.
The health and environmental implications of Plastic #7 items vary. Some plastics in this category, such as polycarbonate, have been associated with the release of bisphenol A (BPA), a highly toxic chemical linked to obesity, cancer, and endocrine problems. It is recommended to dispose of any food or drink-related products known to contain BPA.
Overall, while Plastic #7 items can be reused or "upcycled," they should be approached with caution, especially regarding food and drink storage. It is always advisable to opt for reusable alternatives to plastic and recycle as much as possible.
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It includes nylon, polycarbonate, melamine, and Acrylonitrile Butadiene Styrene
Plastic #7 is considered unsafe and should be avoided. It includes nylon, polycarbonate, melamine, and Acrylonitrile Butadiene Styrene (ABS).
Nylon is a synthetic polymer with excellent elasticity, strength, damage resistance, and resiliency. It is also moisture-resistant and quick-drying. Nylon is used in a wide range of applications, from fabrics to machine parts, due to its durability, lightweight nature, and resistance to heat and chemicals.
Polycarbonate (PC) is a strong, stiff, hard, and tough thermoplastic that can maintain its rigidity up to high temperatures. It is amorphous and has excellent mechanical properties and high dimensional stability. PC is often used in blends with other polymers, such as ABS, to improve impact properties and low-temperature toughness.
Melamine is an organic compound with the formula C3H6N6. It is combined with formaldehyde to produce durable thermosetting plastic used in high-pressure decorative laminates, dinnerware, and laminate flooring. Melamine resins are known for their fire-retardant properties due to the release of nitrogen gas when burned.
ABS is an impact-resistant engineering thermoplastic with high rigidity, good weldability, and insulating properties. It is a chemically resistant resin that offers excellent mechanical properties and is widely used in structural applications, electronic housings, auto parts, and consumer products. ABS can also be blended with other polymers like PC to create a widely used industrial amorphous thermoplastic with enhanced properties.
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Polycarbonate is a thermoplastic with high impact resistance and pliability
Plastic #7 is a category that includes all plastics that do not fit into categories #1 through #6. This group contains a wide range of plastics, including polycarbonate, nylon, acrylic, bioplastic, and melamine. Polycarbonate, a thermoplastic with high impact resistance and pliability, is the focus of this discussion.
Polycarbonate, also known as PC, is a type of plastic that falls within category #7. It is a thermoplastic, which means it becomes mouldable or flexible at a certain temperature and hardens upon cooling. Polycarbonate is known for its high impact resistance, making it suitable for various applications where durability is essential. Its ability to withstand high impacts without breaking or shattering sets it apart from other plastics.
Polycarbonate is also highly pliable at room temperature, making it a manufacturer's favourite. This pliability allows for easy shaping and moulding during the manufacturing process, contributing to its versatility in various applications. Polycarbonate is commonly used in windows and eyewear due to its natural UV filtering properties. It is also used in the production of lenses for sunglasses, sports goggles, and safety goggles, providing eye protection for various activities.
However, polycarbonate has come under scrutiny due to its association with bisphenol A (BPA), a potentially hazardous compound. Studies have shown that polycarbonate can release BPA, especially when used for food storage or items that come into contact with food. BPA is a toxic chemical linked to obesity, cancer, and endocrine problems in fetuses and children. As a result, polycarbonate's use has decreased in recent years, with consumers opting for alternative materials.
Despite its advantages in certain applications, polycarbonate and other #7 plastics are challenging to recycle. They are often not accepted by traditional curbside recycling programs, leading to concerns about their environmental impact. Reusing and repairing items made from #7 plastics is encouraged to extend their lifespan and reduce waste.
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Plastic #7 is difficult to recycle and is rarely accepted by curbside programs
Plastic #7 is a category that includes all plastics that do not fit into categories #1 through #6. It is a diverse group that includes plastics such as acrylic, nylon, polycarbonate, melamine, and bioplastic. These plastics are often used in the production of items like baby bottles, CDs, eyeglasses, car parts, and exterior lighting fixtures.
While some of the plastics in this category are recyclable, biodegradable, or reusable, Plastic #7 is generally not accepted by curbside recycling programs. This is because Plastic #7 encompasses a wide range of plastics, some of which may be recyclable, but many of which are not. As a result, it is difficult to provide a simple answer to whether Plastic #7 can be recycled.
The difficulty in recycling Plastic #7 arises from the fact that it is a catch-all category for a variety of plastics. This means that even if some items made from Plastic #7 can be recycled, there may not be a recycler that can process a particular type of plastic within this category. Additionally, some plastics in this category, such as polycarbonate, have been associated with the release of bisphenol A (BPA), a potentially hazardous chemical. Due to the health and environmental risks associated with BPA, it is recommended to stay away from plastics that contain it.
To make informed decisions about the plastics we use and recycle, it is important to understand the different types of plastics and their potential impacts. While Plastic #7 may be difficult to recycle through curbside programs, it is important to remember that these items can often be reused or "upcycled," keeping them out of landfills. Repair cafes, for example, offer a way to fix old items made from Plastic #7, extending their lifespan and reducing waste.
Overall, while Plastic #7 is rarely accepted by curbside recycling programs, there are alternative options for responsible disposal and reuse, helping to reduce the environmental impact of this diverse and challenging category of plastics.
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Items made from plastic #7 can often be reused or upcycled
Plastic #7 is the final category in the 7-category system of plastic classification. It represents all other plastics that do not fall under the first six categories. Some plastic #7 items include oven baking bags, plastic plates and cups, and bio-based plastics made from potato, sugar, or corn derivatives.
Plastic #7 items are often not recycled in the traditional sense. However, they can frequently be reused or "upcycled" and kept out of landfills. For instance, some curbside programs now accept these plastics, but not many. If you can determine that the component parts of plastic #7 items fit within plastic resin categories 1 through 6, you can follow those recycling instructions.
Bio-based plastics, also known as polylactic acid (PLA) plastic, should be sent to commercial composting facilities. They generally cannot be composted in backyard compost bins or vermicompost bins. It is important not to mix them with other types of plastics in recycling bins, as they can contaminate recycling batches.
Some plastic #7 items found in the home, such as citrus juice bottles, ketchup bottles, and large reusable water bottles and containers, may be reused for various purposes. For example, large plastic water bottles can be reused as containers for other liquids or even as small planters for plants. Plastic plates and cups can also be reused for various purposes, such as holding small items like paper clips or pins.
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Frequently asked questions
Plastic number 7 is used for any plastic that does not fit into categories 1 through 6. It is a miscellaneous category that includes plastics such as acrylic, nylon, polycarbonate, and bioplastic.
Plastic number 7 is used in a variety of products, including baby bottles, CDs, eyeglasses, car parts, and exterior lighting fixtures.
Plastic number 7 should be used with caution, especially around food or drink. It is regarded as one of the worst types of plastic for the environment as it is not biodegradable.
Plastic number 7 is difficult to recycle and is not usually accepted in curbside recycling bins. However, it is possible to reuse or "upcycle" items made from plastic number 7.
