what is the difference between poly ethylene coating&glycerine coating on paper?
124004
what do you mean?can you be more specific?
82676
PET is polyethylene\nPVC is polyvinylchloride\nHDP I am not familiar with\nHDPE is high density polyethylene\n\nWhat you store your material in depends upon its composition, but HDPE is very chemically resistant, so not knowing exactly what you have, I'd say it's a safe bet.
311517
certainly pH has an effect, as do the presence of various possible masking agents.  I would think that you must be able to derivatize EDTA with differnt ligands to improve selectivity control - of course at that point strictly speaking it would no longer be EDTA.  I don't have 6 methods for you, but you can check out some good slide presentations below
221509
weight gain calculations allow you to get a measure of how well (and how uniform by taking different samples) a tablet coating is progressing. Further, it is important in later calculations of out-gassing and water absorption.\n\nIn a minor way, it is important for shipping and setting manufacturing standards for the government.\n\nCoating efficiency allows you to predict and handle bio availability and palatability and other factors important in drug release as well as storage life-time. You can imagine that a poorly coated enteric might 'pre-release' in the stomach instead of the duodenum.\n\nBut in the manufacturing process, efficiency means less coating overall to achieve the above factors and a savings in time and materials used. Thicker coatings obviously take longer to apply and cost more per tablet.\n\nIt isn't always the end coating that changes the process though. Suppose you invest in a solvent for your coating that evaporates more uniformly and is easily recoverable and reused. That can save you time and money, even though it's just a solvent.
565832
I dont know this might help or not\n\nhttp://www.google.co.uk/search?hl=en&q=degree+in+polymer+technology+in+u.k&btnG=Search&meta=
108356
Glycerine. It is the end product of fat degradation or digestion and hence has no energy content.
399896
fatty acids and glycerol
202898
Polyethylene\n\n\nSynthetic polymer: A plastic polymer of ethylene.\nUse: Manufacture of containers,packaging, and electrical insulations.\n\nName  Chemical Formula  Properties  Uses  \nPolyethylene (PE)  - CH2 - CH2 -  Thermoplastic; translucent; permeable by hydrocarbons, alcohol, and gas; resistant to X rays and chemical agents  Film, bags, pipe and tubing, insulating sleeves, bottle stoppers, lids, plastic wrap, toys  \nPolypropylene (PP)  CH3\n|\n- CH2 - CH -  Thermoplastic; low density; durable; resistant to X rays; permeable by water; impact resistant and temperature resistant to 135 degrees C  Household items, plastic wrap, automobile parts, batteries, bumpers, garden furniture, syringes, bottles, appliances  \nPolystyrene (PS)  C6H5\n|\n- CH2 - CH -  Thermoplastic; transparent; nontoxic; optical and electrical properties; easy to color; resistant to X rays, oils, and grease  Plastic wrap, kitchen utensils, furniture covers, thermal insulation, toys, office supplies, disposable razors  \nPolyvinyl Chloride (PVC)  Cl\n|\n- CH2 - CH -  Thermoplastic; soft or rigid; opaque or transparent; fire resistant; resistant to X rays, acids, bases, oils, grease, and alcohol  Household items, electric wire insulation, water pipes, floor coverings, window \nand door coverings, baggage, vinyl, sport and camping gear, items for chemical and automobile industries  \nPolytetrafluoroethylene (PTFE) or Teflon  - CF2 - CF2 -  Chemically inert, antiadhesive, impermeable to water and grease, heat and corrosion resistant  Orthopedic and prosthetic appliances, hearing aids, joints, upholstery, corrosion-resistant mechanical parts, electrical insulation, frying pan coatings  \nPolymethyl Methacrylate (PMMA) or Plexiglas  CH3\n|\n- CH2 - C -\n|\nOCOCH3 Thermoplastic, optical properties, ages well, weather resistant  Glass substitute, neon signs, windows, portholes, optical fibers, dentistry, appliances, contact lenses  \nPolyamides (PA) (example: Nylon)  Example :\n\n- NH - (CH2)a - CO -\n\nwith a natural number  Thermoplastic, mechanical properties, durable to temperatures of 100 degrees C, resistant to X rays and fuel, impermeable to odors and gas  Food wrap, counters, gas, electricity, fuel pipes, shoes, ski bindings, bicycle seats  \nSilicone  R\n|\n- O - Si -\n|\nR\n\nExamples : R = CH3 or C6H5 Fluid, lubricant, antiadhesive, slightly toxic  Fluid for electrical transformers, putty, molding, antiadhesive coverings, varnish, wax, burn treatments, cosmetic surgery  \nUrea-Formaldehyde (UF)  Thermosetting, easy to form  Organic glass, dishes  \nPolyesters  - R - C - O - R' - O - C - R -\n|| ||\nO O\n\nwith R and R' two groups of atoms  Thermosetting, transparent, mechanical properties at high temperatures, electrical properties, resistant to impact, easy to work with  Textiles, plastic wrap, bottles, switches, electric sockets and fuses, appliances  \nPhenolics  Thermosetting, long lasting  Used in layers: Bakelite, durable varnish
361740
You can get putty like ones from art shops that remove dark HB and pretty much destroy anything apart from the pressure on the paper. they need to be cleaned a lot but can be molded to an easy shape and are dabbed rather than rubbed which means less white flakes and little paper ripping.
55591
What will work for you depends a lot on what the material to be coated is, on the application, time spent at temperature, heat cycling, peak temperatures, etc.\n\nHere's a non-ablative coating for metals that can withstand sustained temperatures of 850ºC (1560ºF) and thermal shocks from 1030ºC (1885ºF) immediately to a cold water bath:\n\nhttp://www.indestructible.co.uk/cat2/PL134-R1.html
577072
This is a poorly worded question.  All chemicals have some solubility in water, however minute.\n\nOf these selections, I would go with A\n\nAdding a charge facilitates dissolution.\nMany covalent materials (oil) have low solubility \nMany large molecules are water soluble (Poly Ethylene Glycol)
387111
The glue is generally not applied by the printer, but by the paper manufacturer.\n\nCheck your local yellow pages for businesses under the category "Offset Printing"...If they're any good, they'll have a paper supplier who can get this for you.
601280
Hi S. r.\n\nAcid treated starch is nothing but Granular starch slightly hydrolysed with acid at low temperature.
154332
Paper chromatography is a modern method used separate mixtures. Paper chromatography uses paper as the stationary phase and a liquid solvent as the mobile phase.\n\nYou will use paper chromatography to test food colorings to see if the color results from a single dye or mixture of dyes. If you cannot get food coloring you can use colored felt pens or other water soluble coloring pens. Your exercise is simple but uses very essential principles. An optional part of the activity is to check a household product for the presence of the same dyes that are in food coloring.\n\nThe technique relies on the idea that the solvent and the paper both have an attraction for the components in a mixture. The solvent creeps along the surface of the paper. If a material is placed on one spot on the paper and is soluble in the liquid solvent, the material will be dissolved when the solvent moves over it. The material will move along with the solvent. Each compound in a mixture will have its own characteristic balance of attractions to solvent and to paper, so all will not move at the same speed. Eventually this difference in speed will separate the compounds.\n\nIn paper chromatography when the conditions are kept constant, a particular compound always travels a fixed percentage of the distance traveled by the solvent front. The ratio of the distance the compound travels to the distance the solvent travels is called the Rf value. The symbol Rf stands for "retardation factor" or "ratio-to-front". It is expressed as a decimal fraction. When the conditions are duplicated, the same average relative positions will turn up for the solvent and solute; thus the Rf value is a constant for a given compound. The Rf value is a physical property for that compound. The Rf value is useful in identifying compounds, but other properties should be used in combination with the Rf value to confirm compound identification. Since it is difficult for different laboratories to exactly duplicate conditions for a chromatography experiment, Rf values are more useful for comparisons within one lab than for comparisons of data from different labs.\n\nSubstances that are not colored can also be separated by chromatography. They are detected using ultraviolet or black light. These substances appear to glow in the dark.
645608
try this\n\nhttp://en.wikipedia.org/wiki/Fusion_bonded_epoxy_powder_coating
31239
A painting medium manufactured by Winsor & Newton. It is excellent used with oils or alkyds. It speeds up the drying of oils, makes them more brushable and gives gloss. Also adds transparency. Very good for glazing. It also resists yellowing.\nwww.kidzpicz.com/Artist%20Manual/dictionaryofartisticterms.htm
371050
It would be an insulator because it creates a generally air filled barrier between two objects. I do not believe it's flame retardant. Polyethylene melts easily. Polypropylene has a higher melting point and is usually used in those disposable food storage containers.