CLASSIFICATION & TYPE DESCRIPTION OF PLASTICS
A thermoplastic, or thermosoftening plastic, is a plastic material, polymer that becomes pliable or moldable above a specific temperature and solidifies upon cooling. Most thermoplastics have a high molecular weight.
There are multiple thermoplastic resins that offer various performance benefits, but most materials commonly offer high strength, shrink-resistance and easy bendability. Thermoplastics are frequently used in manufacturing plastic labware. The most frequently used thermoplastics are polypropylene and polyethylene.
POLYPROPYLENE
Polypropylene (PP) is a linear hydrocarbon polymer, expressed as CnH2n. PP is a polyolefin or saturated polymer. Polypropylene is one of those most versatile polymers available with applications, both as a plastic and as a fibre.
- Highly transparent, elastic thermoplastic.
- Similar structure to PE, with a methyl group attached to alternate carbon atoms in an
isotactic arrangement. - Temprature range from 0°C to +125°C.
- Good tensile strength and dimensional stability.
- Good chemical stability, comparable to PE.
- Typical products are, for example: Class B volumetric flasks, Class B measuring cylinders,
measuring pitchers, sample containers, funnels. - Good thermal stability.
PE-HD HIGH-DENSITY POLYETHYLENE
- Transparent, elastic thermoplastic .
- Good thermal stability.
- Temprature range from -50°C to +105°C.
- Good chemical stability.
- Better chemical stability to organic solvents compared to PE-LD.
- Typical products are, for example Bottles: buckets, scoops.
*For the storage of light-sensitive materials, also available in brown-dyed version.
PE-LD LOW-DENSITY POLYETHYLENE
PC POLYCARBONATE
Polycarbonate is virtually unbreakable. Through its high impact resistance, it provides greater safety and comfort for applications where reliability and high performance are essential.
PS POLYSTYRENE