answersLogoWhite

0

🧪

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.

500 Questions

Can plastic be washed after painting with acrylic paint?

User Avatar

Asked by Wiki User

Once acrylic paint has dried on plastic, it usually becomes waterproof and can withstand gentle cleaning with water and mild soap. However, excessive rubbing or cleaning with harsh chemicals might damage the paint. It's best to test a small, inconspicuous area first before attempting to wash the entire painted surface.

Why does nylon smells like plastic on burning?

User Avatar

Asked by VenusSachdeva

Nylon is a type of plastic polymer that is derived from petrochemicals. When burned, the chemical bonds within nylon break down, releasing volatile organic compounds that contribute to the plastic-like smell.

What is the composition of tygon polymer?

User Avatar

Asked by Wiki User

Tygon polymers are typically composed of a blend of PVC (polyvinyl chloride) and plasticizers to achieve flexibility, chemical resistance, and durability. Other additives like stabilizers and lubricants may also be included to enhance performance characteristics. The exact composition may vary depending on the specific type and grade of Tygon polymer.

How are natural polymers and synthetic polymers similar?

User Avatar

Asked by Wiki User

Both natural and synthetic polymers are made up of repeating units called monomers. They both have long molecular chains that give them unique properties such as flexibility, durability, and strength. Additionally, both types of polymers are widely used in various industries due to their versatility and abundance.

Is cellulose and amino acids proper paring for a polymer and its monomer?

User Avatar

Asked by Wiki User

No, cellulose is not a monomer for amino acids to form a polymer. Cellulose is a polysaccharide composed of glucose monomers, while amino acids are the monomers of proteins, which are formed by peptide bonds. The proper pairing for cellulose would be glucose monomers, while amino acids would pair to form proteins.

Is the new polymerization cards the same as the old effect in yugioh?

User Avatar

Asked by Wiki User

No, the new Polymerization cards have updated effects and may function differently from the old version of the card. It is important to read the specific text on the new cards to understand how they work in the current game.

Do you need to let lithium polymer batteries run dead before charging?

User Avatar

Asked by Wiki User

No, it is not necessary to let lithium polymer batteries run dead before charging. In fact, it is better to avoid completely draining the battery as it can be harmful for its longevity. It is recommended to charge lithium polymer batteries before they reach a very low charge level for optimal performance and lifespan.

What disadvantages does crystallinity in a polymer offer?

User Avatar

Asked by Wiki User

Crystallinity in a polymer can lead to decreased flexibility and impact resistance. It may also make the material more prone to stress cracking. Additionally, the presence of crystalline regions can affect the transparency and processability of the polymer.

What is High density polymer concrete?

User Avatar

Asked by Wiki User

High density polymer concrete is a composite material made by mixing aggregates with a polymer resin. It has a higher density than traditional concrete and offers improved strength, durability, and resistance to chemical corrosion. This material is commonly used in construction projects where high performance and long-term durability are required.

Which type of light rays cause plastic bags to deteriorate?

User Avatar

Asked by Wiki User

Ultraviolet (UV) light rays cause plastic bags to deteriorate by breaking down the polymers in the plastic, leading to discoloration, brittleness, and ultimately, degradation. UV light can penetrate plastic and initiate chemical reactions that weaken the material over time.

Is do you ever feel like a plastic bag a simile?

User Avatar

Asked by Wiki User

Yes, "Do you ever feel like a plastic bag?" is a simile. It compares feeling emotionally overwhelmed or insignificant to the light and easily tossed around nature of a plastic bag.

Is hair plastic?

User Avatar

Asked by Wiki User

No, hair is not plastic. Hair is made up of a protein called keratin, which is also found in nails and the outer layer of skin. Plastic, on the other hand, is a synthetic material made from polymers.

Can you melt plastics together with a soldering iron?

User Avatar

Asked by Sirmarcou

No, a soldering iron is not typically hot enough to melt plastics together. To fuse plastics together, it is recommended to use a specialized plastic welding tool that can generate enough heat to melt and join the materials effectively.

How is the air in the large funnel able to fit into the narrow plastic tube?

User Avatar

Asked by Wiki User

The air in the large funnel is able to fit into the narrow plastic tube because the pressure difference between the two ends of the tube creates a suction force that pulls the air through. This process is known as Bernoulli's principle, where faster-moving air has lower pressure, allowing the air to flow from the wide end to the narrow end.

Which material left over from oil refining can be used to make plastics?

User Avatar

Asked by Wiki User

One material left over from oil refining that can be used to make plastics is naphtha. Naphtha is a feedstock commonly used in the production of various plastic resins, such as polyethylene and polypropylene. It is a type of light hydrocarbon obtained from the refining process and serves as a raw material for the petrochemical industry.

What is Something that is made up of repeating monomer units?

User Avatar

Asked by Wiki User

A polymer is a substance composed of repeating monomer units, where the monomers are linked together through chemical bonds to form a larger molecule. Examples of polymers include plastics, proteins, and DNA.

Modified natural polymers for drug delivery?

User Avatar

Asked by Wiki User

Modified natural polymers, such as chitosan or hyaluronic acid, can be chemically modified to improve their drug delivery properties, such as biocompatibility, controlled release, and targeted delivery to specific tissues. By incorporating functionalities like pH sensitivity or ligands for specific receptors, these polymers can enhance the efficiency and effectiveness of drug delivery systems. Overall, modified natural polymers offer a promising avenue for developing advanced drug delivery platforms with better therapeutic outcomes.

Is plastic recycleable?

User Avatar

Asked by Wiki User

Yes, plastic is recyclable. Many types of plastic can be melted down and reprocessed into new products. It's important to check with your local recycling program to see which types of plastics they accept for recycling.

What is the melting temperature of epoxy resin?

User Avatar

Asked by Wiki User

Specific heat capacity of epoxy resin depends on chemical structure of epoxy resin and range of temperature of measurements.

Usually at 25 deg.C specific heat capacity of epoxy resins is 0.8-1.2 kJ/(kg*K). The specific capacity is growing with temperature, roughly increasing 1.5 times by 100 deg.C.

What are some things to make out of polymer clay?

User Avatar

Asked by Wiki User

You can make various items out of polymer clay, such as jewelry, figurines, charms, keychains, and home decor items like coasters or decorative bowls. The possibilities are endless, limited only by your imagination and creativity.

Why do they put plastic bags over grapes on the vines in Spain?

User Avatar

Asked by Wiki User

Plastic bags are used to protect grapes from pests and weather elements like rain, wind, and insects. This method helps ensure a higher quality and yield of grapes during the growing season.

Is polymer grade ethylene same as the polyethylene?

User Avatar

Asked by Wiki User

No, polymer grade ethylene refers to the high-purity ethylene used as a raw material in polymer production, while polyethylene is a polymer formed from the polymerization of ethylene molecules. Polymer grade ethylene is the starting material to produce polyethylene through polymerization processes.

How do you find the best plastic surgeon in Vernon Hills Illinois?

User Avatar

Asked by Wiki User

To find the best plastic surgeon in Vernon Hills, Illinois, you can start by researching online for reviews and ratings from past patients. Additionally, you can ask for recommendations from friends, family, or other healthcare professionals. It's important to also schedule consultations with different surgeons to discuss your goals and ensure you feel comfortable with their experience and expertise.

What does a monomer and a ploymer make?

User Avatar

Asked by Wiki User

A monomer is a small molecule that can bond with other monomers to form a polymer through a process called polymerization. Polymers are large molecules made up of repeating units of monomers, which combine to form long chains or networks.

How thick is a 16 mil plastic?

User Avatar

Asked by Wiki User

A 16 mil plastic is approximately 0.016 inches thick. It is commonly used for heavy-duty applications that require extra durability and strength.