1. What is the difference between the materials, PC, AS, MS, PP, PET?
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Polycarbonate(PC)
PROPERTIES: Particular group of thermoplastic polymers. They are easily worked, Molded and thermoformed; such as these plastics are very widely used in the modern chemical industry. Their interesting features(temperature resistance and optical properties) position them between commodity plastics and engineering plastics.
- Food grade safe
- Shatterproof
- Microwaveable
- Dishwasher safe
PRODUCT APPLICATION:
Lighting lenses, sunglass/eyeglass lenses, safety glasses, automotive headlamp lenses, compact discs, DVDs, lab equipment, research animal enclosures, drinking bottles,advertisement signs, displays, poster protection.
Acrylic
PROPERTIES: It is many times stronger than glass, making it much more impact resistant and therefore safer. Falling against an acrylic shower door will not likely break it. It is only half as heavy as glass. It can be sawed whereas glass must be scored. Acrylic also insulates better than glass, potentially saving on heating bills.
- Food grade safe
- Not easy to break
- Non-microwaveable
- Top rack only
PRODUCT APPLICATION:
It´s a clear plastic that resembles glass, but has properties that make it superior to glass in many ways. Acrylic is used to make various products, such as shower doors, bath enclosures, windows and skylights
Mathacrylic Styrene (MS)
PROPERTIES: When contact with alcohol a nasty smell is slightly emanated in the content, while with cooking oil a fine crack may arise.
- Food grade safe
- Not easy to break
- Non-microwaveable
- Dishwasher safe
PRODUCT APPLICATION:
Lens, a lighting cover, packing material ( a tray, lid material, etc.)
Polypropylene (PP)
PROPERTIES: Thermoplastic; low density; durable; resistant to X rays; permeable by water; impact resistant and temperature resistant to 135° C
PRODUCT APPLICATION: Household items, plastic wrap, automobile parts, batteries, bumpers, garden furniture, syringes, bottles, appliances.
Polyethylene Terephthalate (PET or PETE)
PROPERTIES: Clarity, strength /toughness, barrier to gas and moisture, resistance to heat.
PRODUCT APPLICATION: Plastic soft drink and water bottles, beer bottles, mouthwash bottles, peanut butter and salad dressing containers, ovenable film, ovenable pre-prepared food trays.
2. What is the difference between ceramics, porcelain and fine-bone China?
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Bone China
Bone China is a creamy translucent dinnerware which contains animal bone ash, up to 50%, most of which is from ox-bone that is burned and then ground to a fine powder. Bone china was developed originally in England, but now is made all over the world. Fired at high temperature (1200 degrees Celsius) before glazing and then fired at a lower temperature after glazing to make the glaze feel soft and silky.
Ceramic
The term ’ceramics’ has come to signify the slip casting industry that uses talc-ball clay slurries to cast ware for firing at low temperatures. The term ’pottery’ is used to refer to those individuals and companies who fabricate their own ware using plastic clays of all types and at all temperature ranges.
Porcelain
The generic term for a vitrified, white and translucent material. It normally refers to ware made from a feldspathic body and is thus distinguished from bone china. It is a hard, translucent, clayware body usually comprised of 50% kaolin, 25% feldspar and 25% quartz. Kaolin is the base for plasticity, durability and consistency and influences the whiteness of the body; quartz is the base for stability; and feldspar is the base for vitrification.
