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What else can I help you with?
Does charcoal have a high density or a low density?
Charcoal has a low density because it is porous and lightweight.
Why do silicates have low density?
Silicates have low density because their crystalline structure is characterized by large spaces between the particles. This results in a low packing density overall. Additionally, the presence of light elements such as silicon and oxygen in silicate compounds contributes to their low density.
Which of the following has the lowest density?
air
To be effective a pot holder should have low Conductivity malleability density or viscosity?
A pot holder should have low conductivity to protect your hands from heat. Malleability and density are not as important factors for a pot holder, while viscosity is not relevant to its functionality.
What are some examples of low density liquids and how do they differ from high density liquids?
Low density liquids include substances like gasoline, alcohol, and oil. These liquids have fewer particles packed closely together, resulting in a lower mass per unit volume compared to high density liquids like water or mercury. This means that low density liquids are lighter and less dense, making them float on top of high density liquids.
What is poly(ethene)?
polyethene (polythene, polyethylene) Polymer of ethene. It is a partially crystalline, lightweight, thermoplastic resin with high resistance to chemicals, low moisture absorption and good insulating properties. Low-density polyethene (LDPE) was first produced in the 1930s. It is mainly used in the manufacture of plastic bags. High-density polyethene (HDPE), synthesized in the 1950s, is more flexible and is used for mouldings. polyethene (polythene, polyethylene) Polymer of ethene. It is a partially crystalline, lightweight, thermoplastic resin with high resistance to chemicals, low moisture absorption and good insulating properties. Low-density polyethene (LDPE) was first produced in the 1930s. It is mainly used in the manufacture of plastic bags. High-density polyethene (HDPE), synthesized in the 1950s, is more flexible and is used for mouldings.
Is ldpe a thermoplastic?
Yes, LDPE (low-density polyethylene) is a thermoplastic material. This means it can be melted and reshaped multiple times without undergoing any significant chemical change.
Why polythene are tightly bonded?
LDPE (low density polyethylene) is used for making plastic bags because it is appropriate and HDPE (High density.....) is not.
Is Bakelite thermoplastic or not?
Bake lite was meant to take low heat , like coffee pot handles, toaster handles etc. Regular plastic not so heat resistant .
What is the monomer of polythene bag?
The monomer of a polythene bag is ethylene, which is a simple hydrocarbon with the chemical formula C2H4. During the polymerization process, these ethylene monomers link together to form polyethylene, the polymer that makes up polythene bags. Polyethylene can have different densities and properties depending on the specific polymerization process used, leading to variations like low-density polyethylene (LDPE) and high-density polyethylene (HDPE).
What are the different types of plastics?
Types of plastic - polyethylene (HDPE or LDPE) found in plastic bags and shampoo bottles - polystyrene (PS) found in computer cases - polypropylene (PP) found in dishwasher safe containers - polyethylene terephthalate (PET) found in soda bottles - polyvinyl chloride (PVC) More generally speaking in engineering, plastics are divided into thermoplastic plastics and thermoset plastics These are based on their properties upon reheating after the plastic is molded. Thermoplastic plastics when heated will melt whereas thermoset plastics will not melt but only burn This is due to the way the branches of polymers coordinate. Thermoplastic plastics governed by largely van der waals forces. Thermoset plastics are crosslinked by covalent bonds
What is low density polythene used for?
Low density polyethylene is commonly used for packaging materials such as plastic bags, shrink wraps, and containers. It is also used in various applications like food packaging, agricultural films, and wire insulation due to its flexibility and moisture-resistant properties. Additionally, low density polyethylene is used in the production of toys, tubing, and medical devices.
What is the melting temperature of polythene bag?
Low-density polyethylene (LDPE), used for plastic storage bags, melts at about 110 degrees Celsius. High-density polyethylene (HDPE), used for supermarket plastic bags, melts at 130 degrees Celsius.
Why is polythene used to make bags?
Plastic bags can be made of different polymer types such as: High-Density Polyethylene (HDPE) Medium-Density Polyethylene (MDPE) Low-Density Polyethylene (LDPE) Linear low-density polyethylene Higher density polyethylene polymers have stronger cross-links for linking large chains to another which is usually how plastic bags are able to stretch more and can hold heavier objects. Hence being stronger.
Is expanded polystyrene a thermosetting or thermoforming plastic?
Polystyrene is a very poor conductor of heat. This is why its used as an insulator in some products.
What are the two types of polythene?
The two main types of polyethylene are high-density polyethylene (HDPE) and low-density polyethylene (LDPE). HDPE is more rigid and has a higher strength-to-density ratio, making it suitable for applications requiring durability. LDPE is more flexible and has better impact resistance, commonly used for packaging and film applications.
Is polythene an insulator or a conductor?
Polythene is considered an insulator. It has low electrical conductivity, meaning it does not allow electric current to flow easily through it. This property makes it useful for electrical insulation purposes.
