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Plastics and Polymers

The category should be plastics and polymers. We have a category of metals under chemistry. Plastics and polymers are the fasting growing category of materials. A Styrofoam cup is a plastic or polymer for example.

3,115 Questions

Where does polyvinyl come from?

Polyvinyl, specifically polyvinyl chloride (PVC), is derived from vinyl chloride, a colorless gas produced from the polymerization of vinyl chloride monomer. Vinyl chloride is synthesized primarily from ethylene, which is derived from petroleum or natural gas, and chlorine, obtained through the electrolysis of saltwater. This process involves several chemical reactions, resulting in the formation of PVC, a versatile and widely used plastic in various applications, including construction, healthcare, and packaging.

What is a magnetically coated ribbon capable of storing large amounts of data and information inexpensively?

A magnetically coated ribbon capable of storing large amounts of data and information inexpensively is known as magnetic tape. It consists of a thin plastic strip coated with a magnetic material, allowing it to record and store digital information. Magnetic tape is widely used for data backup, archiving, and in certain applications like video and audio recording due to its cost-effectiveness and high storage capacity. Despite the rise of solid-state drives and cloud storage, magnetic tape remains relevant for long-term data retention.

Why are paper cups better than plastic cups?

Paper cups are a more eco-friendly alternative to plastic cups because they are biodegradable, compostable, and often made from renewable resources. Unlike plastic, which takes hundreds of years to decompose and harms marine life, paper cups break down naturally and leave a smaller environmental footprint. They're also easier to recycle, safer for food use, and align with growing consumer demand for sustainable packaging.

Choose Wikas Greencups – Your trusted Paper Cup Supplier for eco-conscious, high-quality beverage solutions. Serve responsibly, sip sustainably.

What one is not a polymer of ethylene?

One substance that is not a polymer of ethylene is polystyrene. Polystyrene is a polymer made from the monomer styrene, which has a different chemical structure compared to ethylene. While both are derived from hydrocarbons, they have distinct properties and applications. Other examples of non-ethylene polymers include polypropylene and polyvinyl chloride (PVC).

Is polymers malleable?

Polymers can be malleable, but it depends on their specific structure and composition. Thermoplastic polymers, for example, can be easily molded and reshaped when heated, exhibiting malleability. In contrast, thermosetting polymers, once cured, are rigid and cannot be reshaped, making them non-malleable. Therefore, the malleability of a polymer varies based on its type and processing conditions.

What are the monomers of chicken?

The monomers of chicken, like all proteins, are amino acids. These amino acids are linked together by peptide bonds to form polypeptides, which then fold into functional proteins. Additionally, chicken contains nucleotides as monomers of nucleic acids, and simple sugars as monomers of carbohydrates, though the primary focus regarding chicken as a protein source is on amino acids.

How can two polymers consisting of the same repeating subunit have such different properties?

Two polymers with the same repeating subunit can exhibit vastly different properties due to variations in their molecular arrangement, such as chain length, branching, and cross-linking. The physical structure, including crystallinity and amorphous regions, can influence their mechanical strength, flexibility, and thermal stability. Additionally, the way the polymers interact with their environment, such as solvent compatibility and temperature response, can also lead to differing characteristics despite having identical subunits. Thus, the overall properties are determined not just by the chemical composition but by the polymer's architecture and molecular interactions.

Why do we use plastic containers instead of metal containers for storing food articles?

Plastic containers are often preferred for storing food articles due to their lightweight nature, which makes them easier to handle and transport. They are also less prone to rust and corrosion compared to metal containers, ensuring better preservation of food quality. Additionally, plastic containers can be more versatile in terms of design and functionality, often featuring airtight seals that help maintain freshness. However, it's important to choose BPA-free plastics to avoid potential health risks.

What types of plastic sugery are there?

"Man of the best methods of changing an appearance is to have a plastic surgery. The areas of which are rich but we can identify two main types such as reconstructive surgery and cosmetic (aesthetic) surgery, all of which have many subtypes as well.

  1. Reconstructive Surgery
  • Breast Reconstruction:
  • Cleft Lip and Palate Repair:
  • Scar Revision Surgery:
  • Tumor Removal and Reconstruction:
  1. Cosmetic (Aesthetic) Surgery

Common facial procedures:

  • Rhinoplasty:
  • Blepharoplasty:
  • Facelift (Rhytidectomy):
  • Brow Lift:
  • Chin or Cheek Implants:
  • Lip Augmentation:

If you need cosmetic or reconstructive plastic surgery; then you should visit Perfection Plastic Surgery Clinic. We are here to help.."

What type of jointing material must not be used on a plastic cold water storage cistern?

When working with a plastic cold water storage cistern, jointing materials that contain solvents or adhesives that can deteriorate plastic should be avoided. This includes traditional solvent cement, which can cause cracking or weakening of the plastic. Instead, use jointing materials specifically designed for plastic, such as plastic-compatible sealants or gaskets. Always check the manufacturer's guidelines for suitable jointing options.

Is neoprene a plastic?

Neoprene is not a plastic; it is a type of synthetic rubber made from polychloroprene. While both neoprene and plastics are polymers, neoprene has different properties and uses, such as in wetsuits and gaskets, due to its flexibility and resistance to water and chemicals. Neoprene is known for its durability and insulation qualities, making it distinct from traditional plastics.

At which wavelength does benzoyl peroxide start to decompose?

Benzoyl peroxide begins to decompose at wavelengths around 300 nm. This decomposition is primarily due to its sensitivity to ultraviolet light, which can lead to the breakdown of the peroxide bond. As a result, exposure to UV light can diminish its effectiveness as a topical treatment for acne.

Is urea formaldehyde expensive?

Urea formaldehyde is generally considered to be an economical option compared to other types of resins and adhesives. The cost can vary based on factors such as purity, supplier, and quantity purchased, but it is typically less expensive than alternatives like phenolic resins. However, prices can fluctuate based on market conditions and demand. Overall, it is often chosen for its cost-effectiveness in various applications.

What is the macromolecules of each monomer?

The macromolecule of a monosaccharide monomer is a polysaccharide such as starch or cellulose. The macromolecule of an amino acid monomer is a polypeptide or protein. The macromolecule of a nucleotide monomer is a nucleic acid such as DNA or RNA.

What are some types of facial plastic surgery?

"Facial plastic surgery involves several treatments to improve face and/or neck appearance as well as functioning.

Here are several common types of facial plastic surgery procedures:

  1. Rhinoplasty (Nose Surgery)

  2. Blepharoplasty (Eyelid Surgery)

  3. Facelift (Rhytidectomy)

  4. Brow Lift (Forehead Lift)

  5. Otoplasty (Ear Surgery)

  6. Chin Augmentation (Genioplasty)

  7. Cheek Augmentation

  8. Lip Augmentation

  9. Neck Lift

  10. Skin Resurfacing Procedures

Take the first step towards achieving your goal. For more information, you can visit Perfection Plastic Surgery Clinic

How do the plastic get accumulated?

Plastic accumulates in the environment primarily through improper disposal and inadequate waste management systems. Items like single-use plastics are often discarded instead of being recycled, leading to them entering waterways and oceans. Over time, sunlight and physical abrasion break down larger pieces into microplastics, which can persist in the environment for hundreds of years. This accumulation poses significant threats to wildlife, ecosystems, and human health.

Why is it important to use the polymer powder design for a specific monomer liquid?

Using a polymer powder designed for a specific monomer liquid is crucial to ensure optimal compatibility and performance of the resulting product. This tailored approach enhances the chemical bonding and interaction between the polymer and liquid, resulting in improved strength, flexibility, and durability. Additionally, it minimizes issues such as separation or undesired reactions, leading to a more consistent and reliable end product. Overall, this specificity can significantly influence the effectiveness and longevity of the application.

Is plastic a convector?

Plastic is generally considered a poor conductor of heat and electricity, meaning it does not effectively transfer thermal energy or electrical current. Instead, it acts as an insulator, making it suitable for applications where heat or electrical insulation is needed. Some specialized plastics can have enhanced conductive properties if modified or combined with conductive materials, but in its standard form, plastic is not a good conductor.

What monomers are decanted into your bloodstream?

The primary monomers that are decanted into the bloodstream are glucose, amino acids, and fatty acids. Glucose is derived from the digestion of carbohydrates, while amino acids come from the breakdown of proteins. Fatty acids are released from the digestion of fats. These monomers are crucial for providing energy and building blocks for various biological processes in the body.

Which of the apparathus are made up of plastic?

Many laboratory apparatus items are made from plastic, including beakers, pipettes, test tubes, and Petri dishes. Plastic is favored for its lightweight nature, resistance to breaking, and cost-effectiveness. Additionally, certain containers used for storing chemicals or samples, such as storage bottles and microcentrifuge tubes, are also commonly made of plastic. However, it's important to choose appropriate plastic types that are compatible with the substances being used.

What is polymer and why is it good for storage?

A polymer is a large molecule composed of repeating structural units called monomers, which are bonded together in long chains. Polymers are advantageous for storage because they can be engineered to have specific properties, such as flexibility, strength, and resistance to moisture and chemicals, making them ideal for packaging and containment. Additionally, their lightweight nature and durability contribute to efficient space utilization and protection of stored materials.

How long does it take for a leatherback to choke on a plastic bag?

The time it takes for a leatherback sea turtle to choke on a plastic bag can vary, but ingestion can lead to immediate distress and potentially fatal consequences. Leatherbacks often mistake plastic bags for jellyfish, their primary food source. Once ingested, the plastic can cause blockages in the digestive system, leading to death within days or weeks if not removed. Therefore, the timeline for choking and subsequent health decline can be very short, depending on the size and type of plastic ingested.

Where can one find more information about plastic suppliers?

  • You can find plastic suppliers on online business websites that connect buyers and sellers.
  • These sites list different kinds of plastic products like raw materials, bottles, packaging, and more.
  • One trusted platform is Pepagora.
  • It shares details about plastic suppliers, what they sell, where they are located, and how to contact them.
  • It helps businesses and buyers find the right supplier easily.
  • You can also check local business directories or websites like Yellow Pages.
  • Trade shows and industry events are great places to meet plastic suppliers in person.

Use LinkedIn or other business social media platforms to find and connect with suppliers.

Before choosing a supplier, compare a few options:

  • Check their products
  • Read customer reviews
  • Look at their pricing

Taking time to compare suppliers will help you make a smart and safe choice

Why is it so easy to obtain plastic bags?

Plastic bags are easy to obtain primarily due to their low production costs and widespread availability. Many retailers offer them for free or at a minimal charge, making them convenient for consumers. Additionally, their lightweight and flexible nature makes them easy to store and transport, contributing to their popularity. This accessibility has led to significant environmental concerns, prompting some regions to implement bans or fees to encourage alternatives.

What polymer makes our characteristic?

The characteristic features of various materials are often attributed to their specific polymers. For instance, the polymer polyethylene gives plastic its flexibility and durability, while proteins, which are also polymers, contribute to the structure and function of biological systems. In textiles, polymers like nylon and polyester provide strength and resilience. Overall, the unique properties of a material are largely determined by the type and arrangement of its constituent polymers.