Plastics Lab essays

Plastics Lab essays This is almost the exact lab from your online site. I typed my lab up this way so its more clear and easier to read. h To describe some of the major plastic resins and their uses h To compare and contrast the properties of different plastic resins h To list products that different resins can become through recycling Procedure/Questions(note: tables are attached): 1. Read Table 1. Major Plastic Resins and Their Uses. This resin chart describes six common resins and the variety of uses each has. The uses depend on the properties of each resin listed (e.g., lightweight, flexible, incredibly hard, rigid, durable). The code numbers are used by recycles to identify different resins. 2. Find a sample of as many of the six resins as you can. (There is a "7" which is used kind of like "none of the above". It is not common.) Since this is an extra credit assignment, each resin you use will add to your grade. It is important that the plastic identification code be visible on each object, for ease in identifying the resin from which it is made. 3. Fill in Table 2. Properties of Plastic Resins as you examine your plastic samples. 4. Cut out the recycling symbol on each sample and attach it to Table 2. 5. What is the short name (HDPE, etc) of each sample? 6. Is it clear? Does it have color?(Note- these are based on the examples I found.) h Resin 1- Polyethylene Terephthlate is generally clear. h Resin 2- High Density Polyethylene has more of a white coloring. h Resin 3- Polyvinyl Chloride is clear. h Resin 4- Low Density Polyethylene can be colored (manufactured). h Resin 5- Polypropylene can be cream colored or white. h Resin 6- Polystyrene can be ...