Plastics and Polymers

It has been rumored that Minwoo from Boyfriend underwent plastic surgery, especially for his nose. However, he has not confirmed these rumors and it's important to remember that personal decisions regarding cosmetic procedures are private and should be respected.

To preface this Q&A, different plastics and plastic thickness have different decomposition times. For example, plastic foam will never decompose.

I have seen some websites say it takes 10-12 years to decompose (which is hard to believe), another say 450-800 years, and yet another say 1000 years. Apparently, there is some debate about the definition of "decomposed": Plastic never fully decomposes. Over time it goes through a process of photo degradation and breaks down into smaller and smaller pieces.

The different stock forms of plastics include pellets, sheets, rods, and tubes. Pellets are small beads of plastic used in injection molding. Sheets are flat pieces of plastic that can be cut to size for various applications. Rods and tubes are cylindrical forms of plastic used in machining and fabrication processes.

Small molecules used in making synthetic polymers are typically sourced from petrochemicals, such as ethylene and propylene, which are derived from crude oil or natural gas. These small molecules undergo polymerization reactions to form long chains of repeating units, creating synthetic polymers like polyethylene and polypropylene.

Cooking rice with plastic bags over the top and under the lid can be unsafe as the plastic may release harmful chemicals when exposed to heat. It's best to avoid using plastic bags in direct contact with heat when cooking food. Opt for using a proper lid to cover the rice while cooking instead.

Plastic icing is a type of sugar paste that is used in cake decorating to create intricate designs and decorations. It is made from icing sugar, gelatin, and glucose syrup, giving it a pliable texture that can be easily molded and shaped. It is often used to create 3D figures, flowers, and other decorative elements on cakes.

Singapore recycles about 4% of its plastic bags, with the majority still ending up in landfills or incinerated. Efforts to reduce plastic bag usage and increase recycling are ongoing to improve the situation.

Yes if the power of the BB gun is >200 FPS (Feet Per Second) and if the pellets are >0.25g

Source: I have a 450 FPS BB gun with 0.28g pellets and it will go through insulation foam with ease and scar you if you get shot by it...

How are responsible because there the one's who do it! You don't see a monkey go and throw a milk jug in the ocean. It only humans, and thats pollution. But, then again bird can carry plastic and drop it on the ocean, so it's half and half. ANSWER: Yes!!

Plastic potholders are often called silicone potholders due to the heat-resistance and flexibility of silicone material. They are designed to provide protection against heat while handling hot pots and pans in the kitchen.

Acrylic water-based paint is a type of acrylic paint that uses water as a carrier instead of solvents, making it easier to clean up and more environmentally friendly. Acrylic polymer paint refers to any paint that contains acrylic polymers as a binder, providing durability and adhesion. So, acrylic water-based paint is a specific type of acrylic polymer paint that uses water as a solvent.

Yes, some dollar stores may sell plastic army men as part of their toy selection. It's best to check with your local dollar store to see if they have them in stock.

Assuming each plastic bag is about 0.22mm thick, 1 trillion bags would stack up to about 220 million kilometers. The Earth's circumference is about 40,075 kilometers, so you could go around the world approximately 5.49 million times with 1 trillion plastic bags.

The monomer for bio-plastic is typically derived from renewable resources such as corn starch or sugarcane. One common example is polylactic acid (PLA), which is made by fermenting sugars to produce lactic acid, which is then polymerized to form PLA bio-plastic.

Sunflower is not a reaction or a polymer. It is a type of plant that belongs to the family Asteraceae, known for its large, yellow flowers and edible seeds.

Plastic bags became popular in the US in the late 1970s and early 1980s as a replacement for paper bags. However, widespread use of plastic bags increased significantly in the 1990s and early 2000s, leading to environmental concerns due to their impact on the environment.

If plastic burns onto your skin, first remove any hot plastic, then run the burned area under cool water for at least 10-15 minutes to help reduce the pain and prevent further damage. Seek medical attention if the burn is severe or covers a large area. Do not attempt to peel off the melted plastic as it can worsen the injury.

Two materials that can be combined to make biodegradable plastic bags are corn starch and PLA (polylactic acid). These materials are biodegradable, renewable resources that can be used to create environmentally friendly alternatives to traditional plastic bags.

There is no public information or evidence to suggest that Queen Silvia of Sweden has undergone plastic surgery.

The water will evaporate slowly over time due to the heat and air trapped inside the cup. The plastic wrap will help maintain a higher humidity level, preventing the water from evaporating too quickly. Mold may also start to grow in the cup due to the high humidity environment created by the plastic wrap.

It may come as a surprise, but everything in a store from heat to plastic bags has a cost and the cost is passed on to the shoppers. Stores such as Walmart is simply hiding the charge for bags and potentially making a profit on them. Stores that charge for bags are making the cost more obvious and allowing the customer to opt out (saving money) by using re-usable bags or carrying the unwrapped package out of the store.

The coefficient of friction between soil and plastic pipes typically ranges from 0.2 to 0.6, depending on factors such as soil type, moisture content, and pipe material. It is important to consider these variations when designing pipe installation to ensure stability and avoid slippage.

Flexible polymer hoses are tubes made of synthetic polymers that have the ability to bend and flex easily. These hoses are commonly used for conveying fluids or gases in various industrial and commercial applications due to their flexibility, durability, and resistance to chemicals and high temperatures.

To remove Friar's balsam stains from plastic, you can try wiping the stain with rubbing alcohol or acetone. Gently scrub the affected area until the stain starts to lift. You can also try using a mixture of warm water and mild soap to remove the stain.