(according by wikipedia)composite means combine (two or more materials ) to make a single layer.In my final project i need to make the dish for solar concentrator. for that i decide to amke an mould of dish in laser cutter and using composite make my dish
Polyester resins are unsaturated synthetic resins formed by the reaction of dibasic organic acids and polyhydric alcohols. Maleic Anhydride is a commonly used raw material with diacid functionality. Polyester resins are used in sheet moulding compound, bulk moulding compound and the toner of laser printers. Wall panels fabricated from polyester resins reinforced with fiberglass — so-called fiberglass reinforced plastic (FRP) — are typically used in restaurants, kitchens, restrooms and other areas that require washable low-maintenance walls. I need my solar panel light wt so no need of cement so i used saturated polyester resine
I used 3 types of fiber in my whole assignment i.e one is natural fiber wheat husk stickes then i use the jutt and then i use the fiber glass but i use the same polyester resine
A Material Safety Data Sheet (MSDS) for safe practices
A Material Safety Data Sheet (MSDS) is a document that provides health and safety information about products, substances or chemicals that are classified as hazardous substances or dangerous goods. MSDS's provide information on: the manufacturer or importing supplier. the product (its name, ingredients and properties)-wikipedia
I take the following things from polyester resine MSDS -
1)PERSONAL PROTECTION - HAND
Evaluate the resistance of the product under conditions of use PERSONAL PROTECTION - EYE Wear a face shield or chemical goggles or approved safety glasses, Have an emergency eyewash station readily available in the working area, PERSONAL PROTECTION SKIN Impervious gloves, coveralls, boots, andior other resistant protective clothing. Have a safety shower eye wash fountain readily available in the immediate work area, PERSONAL PROTECTION COMMENTS Dust generated by grinding or polishing finished products is regarded as hazardous and precautions should be taken to ensure dust concentrations to he maintained below a TLV of 10 mg m3 - Where dust concentrations exceed these values, appropriate dust masks Should be worn. OTHER PROTECTIVE MEASURE Remove contaminated clothing immediately. keep contaminated clothing in closed Containers. Discard or launder before rewearing. Inform laundry personnel of contaminated hazards. Do not eat, smoke or drink in work areas.
HANDLING AND STORAGE
STORAGE TEMPERATURE (min./max.):40°F (4°C) / 120°F (49°C) STORAGE: Store in cool, dry place. Store in tightly sealed containers to prevent moisture absorption and loss of volatiles. Excessive heat over long periods of time will degrade the resin. HANDLING PRECAUTIONS:Avoid prolonged or repeated skin contact. Wash thoroughly after handling. Launder contaminated clothing before reuse. Avoid inhalation of vapors from heated product. Precautionary steps should be taken when curing product in large quantities. When mixed with epoxy curing agents this product causes an exothermic, which in large masses, can produce enough heat to damage or ignite surrounding materials and emit fumes and vapors that vary widely in composition and toxicity.
Technical Data Sheet (TDS)
this data sheet is usefull because at the begining we dont know anything about the resine density,flash point but with the help of tds we can use it with good praportion.
Source:TDS site of resine