Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students. Mention two important uses of each of the following: (i) Bakelite (ii) Nylon-6. Phenolic plastic (bakelite): The surface is hard, brittle and … Bakelite is still manufactured, however, and is used for pot handles and jewelry. Bakelite was used to manufacture everything from telephone handsets and costume jewelry to bases and sockets for lights bulbs to automobile engine parts and washing machine components. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students. Chips and Wear- Bakelite that is carved may have small chips along the carving and scratch lines inside of the carved space, which is evidence of the tool used to create the design.If the carving lacks scratch lines, it may be a modern reproduction. This radio is made of black bakelite. Besides serving as the generic name for the entire family, the term phenol is also the specific name for its simplest member, monohydroxybenzene, also known as benzenol. (ii) Uses of nylon-6 : (a) It is used in fiber and plastic. Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. It is used for making carpets and fabrics in textile industry. It was also used in other diverse products such as jewellery, kitchenware, and toys. (ii) Also used in production of billia Make sure the dealer has a return policy. The following is an introduction to the plastics and an identification guide. But to me, Bakelite will always have a special place in the history of plastics as the first truly modern plastic, one that people prized for its beauty, versatility, and durability. Real Bakelite is heavier and has a specific scent. The introduction of Bakelitethe worlds first synthetic plasticin 1907 marked the introduction of the Polymer Age. Electrical components. As we know Lower punch travels the full length inside the die In case the blend has low melting point than it will adhere to the walls of dies and as the punch … (b) It is used in making computer discs. Read the passage below and answer. Mark Miodownik describes the work of the chemist Leo Baekeland, who invented the plastic Bakelite. Veteran collectors know the uniquely identifiable “clunk” sound that two pieces of vintage Bakelite make when tapped together. USES OF BAKELITE: Bakelite due to its high resistance to electricity and heat is used in automotive components and industrial applications. Bakelite Pyramid phones from 1930's . BBC Two. Collectors sometimes use the hot water method to test for authentic Bakelite (dip in hot water, rub and test for the smell of formaldehyde) or the 409 method (just a touch of Formula 409 cleaner or Simichrome brand polish on a cotton swab … (i) Uses of bakelite : (a) It is used in electric switches. It is used for insulating electric wires. (a) Terylene (b) Bakelite (c) Melamine (d) Nylon-6,6, Mention two important uses of each of the following: (i) Bakelite (ii) Nylon-6. Yes, there are imitations of Bakelite. Mention two important uses of each of the following : (i) Bakelite (ii) Nylon 6 (Delhi 2011) Answer: (i) Bakelite : (i) It is used in making handles of utensils. Brent Balinski spoke to two chemistry academics, an engineer, a manufacturer still specialising in the material, and a vintage collectibles dealer about what was once called The Material of 1,000 Uses. of Ghent, 1882. Login to view the answer of this question. Home; Clips; Learning Zone Home; Main content. The structure, properties and uses of Bakelite. Bakelite is a man-made (synthetic) material while Melamine occurs naturally (is organic). (i) Uses of bakelite : (a) It is used in electric switches. Some 5,000 years ago, we learned how to make alloys of copper, and the Bronze Age began. The Achilles heel was color. Write the names and structures of the monomers of the following polymers : (i) Bakelite (ii) Nylon-6 (iii) Polyethene, Which of the following has a ester bond? State two uses of melamine. Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Insulation of wires, brake pads, and some select automobile parts. Key Difference – Bakelite vs Plastic Plastic and Bakelite are both organic polymers, having a very large molecular weight though there exists a difference between the two based on their properties and usage. Bakelite and catalin are trade names for closely related antique plastics that are popularly collected today in the form of old timey radios ('catalin radios'), colorful jewelry, toys and more. Bakelite is made of powdered phenolic resin, which is mixed with sawdust, asbestos or clay, and then pressed into a finished product at a high temperature. The pure Bakelite resin was lovely amber, and it could take other colors as well. Known as a cast phenol formaldehyde resin, Catalin, created in 1927, is a thermosetting polymer not unlike Bakelite, except the production is in two stages, where Bakelite requires more of a multistage curing process. As previously mentioned, Bakelite was used in various industries from automobile and electrical fields. of Ghent, 1882. Bakelite was the first FRP discovered by Dr. Baekeland. The two basic components of Bakelite were already well known. Jewelry. Cheaper and lighter plastics are often used today and are called Bakelite to try and capitalize on its popularity. (iii) It is used in the manufacture of rain coats, hand bags, water pipes, vinyl flooring. Login via Facebook. Answer. Use some common sense: If you are in doubt about a piece, ask the dealer specific questions. (iii) It is used in the manufacture of rain coats, hand bags, water pipes, vinyl flooring. ... Prystal was a trade name used for a type of transparent Bakelite marketed … The Bakelite Corporation adopted as its logo the mathematical symbol for infinity and the slogan, "The Material of a Thousand Uses," but they recognized no boundaries for their material. A combination of formaldehyde and phenol leads to Bakelite. Bakelite is first made synthetic resin which was used for commercial purposes. What is bakelite? The formation process of these two types of plastics also differs. ~ Uses of Bakelite It was used for its non-conductive and heat-resistant properties in electrical insulators, and also in radios and telephones. The reaction involved is condensation reaction in the presence of either a basic or acidic catalyst. It can be used to make kitchen wares; It is used in fabrics that need fire resistance; Automobile distributor caps and other insulators. Owing to its resistance to heat, electricity, and chemical action, today, Bakelite is used to make: Bases and sockets for light bulbs. "Black Bakelite" Phenolic resin is the world's first synthetic resin. Bakelite requires two monomers- phenol and formaldehyde. They used Bakelite exclusively for the brown and black housings. It is used for making carpets and fabrics in textile industry. Write method of polymerisations and uses of the Bakelite polymers. More. Bakelite has a high resistance to heat and chemicals and also has a low electrical conductivity due to which it is most commonly used for making electrical switches Bakelite is also used to make the handles of a variety of utensils. (a) Nylon (b) Bakelite (c) Terylene (d) Rubber, Of the following which one is classified as polyester polymer? Question: State two important properties and two uses of bakelite. Bakelite and catalin are both made from phenol and formaldehyde, and are phenol… When it came to making color products they resorted to Catalin and called it such, but it was expensive and the telephone industry mostly waited for cellulose acetate development for easily colored material and for cheaper products. Already I've managed to add some nice new examples to my Bakelite collection for the start of a New Year, these to appear on my newly created NEW ADDITIONS PAGE for 2006, one of the stars being a superb table lighter, THE CLASSIC JUMBO LIGHTER pure Art Deco, 1930's, plus many other items including an IVALEK CRYSTAL SET and a wonderful CALOR BAKELITE TABLE FAN .. please keep … Bakelite (pronounced with three syllables, by the way: the middle E is short, not silent) was created by Belgian-American chemist Leo Baekeland in 1907 with industrial uses in mind. See more ideas about bakelite bracelets, bakelite, bakelite bangles. The Rolex GMT-Master 6542 had a relatively short production period, and furthermore, Rolex also replaced the bezels of some GMT-Masters. In the 1930s cast Bakelite, along with many other competing phenolic resins, enjoyed a vogue in colourful costume jewelry and novelties. These colors vary, like with the solid color pieces shown above, but are most often found in yellow, green, and red. Leading the way in The Age of Plastics, Bakelite’s creation in 1907 was also the creation of the very first truly artificial manufacturing material. used for making the handles of a variety of utensils. Morning Glory Antiques. Uses of Bakelite : (i) It is used for making electrical switches and plugs. It is one of the most important and extensively used polymers for making components and parts of various items. Different substitutes of phenol and formaldehyde can also be used depending on the application. Which TWO of the following factors influencing the design of Bakelite objects are mentioned in the text? Galalith and Bakelite are often confused, and even though both are a type of plastic and used in much the same way, the two are not related, nor are the terms interchangeable. Write two uses of Bakelite. (ii) It is used … Bakelite is an acrylic. Bakelite jewelry (most of which was originally marketed as Catalin) goes way beyond stacks of bangles in solid colors.This popular plastic adornment was made in transparent versions, reversed carved, resin washed, and clad with metal among other variations. Or buy vintage Bakelite from one of the many reputable Bakelite dealers that you probably already know. Univ. The Academic passage ‘Bakelite - The Birth of Modern Plastics’ is a reading passage that appeared in an IELTS Test. Mention two important uses of each of the following : Mention two important uses of each of the following : (i) Bakelite, (ii) Nylon-6. Bakelite was used for many things when it first came to light.