NAME: Anurag Srivastava DIGITAL ASSIGNMENT ASSIGNMENT-III Class Nbr: 3720 Course Code: CHY1001 Acrylonitrile butadiene styrene Acrylonitrile butadiene styrene or commonly known as ABS is a type of thermoplastic polymer with chemical formula (C8H8)x(C4H6)y(C3H3N)z. ABS is a terpolymer made by polymerizing styrene and acrylonitrile in the with poly butadiene. The values can differ 15-35% acrylonitrile, 5-30% butadiene and 40-60% styrene. The final product is a long chain of poly butadiene criss-crossed with shorter chains of poly(styrene-co-acrylonitrile). The nitrile groups from neighbouring chains, being polar, attract each other and bind the chains together, making ABS stronger than pure polystyrene. The styrene gives the plastic a shiny, …show more content…
This application exploits the fact that PTFE has excellent dielectric properties. This is especially true at high radio frequencies, making it suitable for use as an insulator in cables and connector assemblies and as a material for printed circuit boards used at microwave frequencies. Combined with its high melting temperature, this makes it the material of choice as a high-performance substitute for the weaker and lower-melting-point polyethylene commonly used in low-cost applications. In industrial applications, owing to its low friction, PTFE is used for applications where sliding action of parts is needed: plain bearings, gears, slide plates, etc. In these applications, it performs significantly better than nylon and acetal; it is comparable to ultra-high-molecular-weight polyethylene (UHMWPE). Although UHMWPE is more resistant to wear than PTFE, for these applications, versions of PTFE with mineral oil or molybdenum disulfide embedded as additional lubricants in its matrix are being manufactured. Its extremely high bulk resistivity makes it an ideal material for fabricating long-life electrets, useful devices that are the electrostatic analogues of …show more content…
It is a thermosetting phenol formaldehyde resin, formed from a condensation reaction of phenol with formaldehyde. It was developed by the Belgian-American chemist Leo Baekeland in New York in 1907. Properties Bakelite has a number of important properties. It can be molded very quickly, allowing identical units to be mass-produced. Moldings are smooth, retain their shape and are resistant to heat, scratches, and destructive solvents. It is also resistant to electricity, and prized for its low conductivity. It is not
First Name_Siamrjeet__ Last Name _Singh_ Student #_n01142134__ LAB 4 CONFIGURING FILE AND SHARE ACCESS No-Penalty Due Date:. 7 Days from your lab session Submissions more than 5 days late receive a mark of zero.
K.D.A. Saboia et al. , (2007) have been prepared the Bi4Ti3O12–CaCu3Ti4O12 {[BIT(X)–CCTO(100-X)]} composite powders through solid state reaction method and calcined in the range of 900 to 1020 ºC for 12 h. The as-prepared powders have modified in the form of thick film onto alumina ceramic substrate by utilizing screen printing. At 100 Hz, the value of dielectric constant (κ) of CCTO100 and BIT100 is 316.61 and 53.64 respectively. Conversely, the composite with X=20 % shows an unexpected dielectric constant of 409.71, which is around 20% higher in comparison with the CCTO.
A hospital patient is suffering a terrible infection. There is only one diagnosis and that is to take a poop or roach pill. Some people in this world today think that is very disgusting and they wouldn 't dare take something like that. But what if it was one of your loved ones wouldn 't you want them to take the pill? They should treat the patient with the pill because it leads to better health.
An infrared spectrum was run on the product to be compared to the starting material. The starting material had peaks at 2900 cm-1, and 1700 cm-1, corresponding to the Csp3-H of alkanes, and the C = O of a carbonyl ketone. The product’s IR spectrum had a peak at 3400 cm-1 and 2900 cm-1, indicating the prescence of an alcohol and Csp3-H of alkanes.
There so much static electricity that it could short telephone wires, make barbed wire fences catch on fire, and literally make cars start to melt. It's like putting
1. Cocaine became popular when it started being used for more and more things as its uses became more and more known. Cocaine use originated around 5000 BECAUSE with the Incans of Peru. Cocaine was used as a stimulant to help the natives get through grueling, long, active days of work. As time went on the plant became an integral part of their lives; used as money, an herb and during religious ceremonies.
Benzyne Formation and the Diels-Alder Reaction Preparation of 1,2,3,4 Tetraphenylnaphthalene Aubree Edwards Purpose: 1,2,3,4-tetraphenylnaphthalene is prepared by first producing benzyne via the unstable diazonium salt. Then tetraphenylcyclopentadienone and benzyne undergo a diels-alder reaction to create 1,2,3,4-tetraphenylnaphthalene. Reactions: Procedure: The reaction mixture was created. Tetraphenylcyclopentadienone (0.1197g, 0.3113 mmol) a black solid powder, anthranilic acid ( 0.0482g, 0.3516 mmol) a yellowish sand, and 1,2-dimethoxyethane (1.2 ml) was added to a 5-ml conical vial.
OxyContin Emmanuela Brown Pharmacology Mr.JD Southern Technical College Have you ever thought of why people get additive to Pharmacia drugs. What are the street values of those drugs? Why are these drugs so important if various people are abusing and getting addictive to them? “Acadiana Addiction Center says, people get addicted, because it causes a Euphoric high caused by stimulation of the reward center of the brain (acandiana addiction center, n.d.). There is always someone going to abuse this drug, because of how it makes you feel.
Treatment of fever in children is of greatest concern to parents. For the treatment of high temperatures (febrile illness) in children with the use of antipyretic drugs such as acetaminophen (panadol) and ibuprofen is widely available and widespread use among parents buying for their children. It is found based on studies in the journal that ibuprofen is more effective at reducing temperature in children than acetaminophen (panadol). There is a difference between the dosages of the two antipyretic medications. The dosage of acetaminophen (panadol) ranged from 8 mg/kg to 15 mg/kg and for ibuprofen from 5 mg/kg to 10 mg/kg).
Safety and Health Effects Aspartame is one of the most strictly tested artificial sweetener. Independent reviews have examined the published research study on the safeness of aspartame and have found that aspartame is safe for minimal consumptions. According to Food and Drug Administration (FDA), the acceptable daily intake (ADI) value for aspartame is 50 mg/kg of body weight. It was found that the main sources that expose people to aspartame are diet soft drinks, though it is also present in other preserved products, such as food condiments, fruit juices, pharmaceutical preparations, and chewing gums in lesser quantities.
Best Pillow Protector Pillows can be tricky to clean. You don’t whether to use a washing machine or to just hang it outside your home. However, it is very important to keep your pillows clean since your face is in direct contact with the pillow. You spend at least eight hours of your day in bed, so you have to be certain that your pillow is spotless clean.
Abstract: The purpose of this experiment was to identify given Unknown White Compound by conducting various test and learning how to use lab techniques. Tests that are used during this experiment were a flame test, ion test, pH test, and conductivity test. The results drawn from these tests confirmed the identity of the Unknown White Compound to be sodium acetate (NaC2H3O2) because there were no presence of ions and sodium has a strong persistent orange color. The compound then will be synthesized with the compounds Na2CO3 and HC2H3O2 to find percent yield.
Introduction Chevron Phillips Chemical Company is the major producer of Cyclohexane. This successful company hoses the three largest cyclohexane plants in the world. Many are puzzled by how the production of cyclohexane seems to have become stagnant. Perhaps this is due to the cost of benzene increasing or the demand increasing. Through thorough investigation, the answer to this question and many more can be answered.
The former can be heated and shaped and are used in the modern world many times, containing everything from children's toys to toilet seats. Because they can be melted down and reshaped, thermoplastics are usually recycled. Thermoset plastics can only be heated and shaped once, after which the molecular changes mean they are “cured,” retaining their shape and strength even when they are subjected to intense heat and the pressure. Thermoset plastics plays a vital part in our modern world.
After a couple of decades of use by homeowners and Calgary electricians, inherent weaknesses were discovered in the material, which