A business using the cycle inventory method might count different items at different rates, based on the level of turnover or demand for that particular item. method of keeping track of inventory by performing inventory counts constantly, or on a frequent and regular basis, instead of once per year or once per quarter.
Effect of Heat. The melting point of polypropylene is about 165Â°C and while it does not have a true softening point temperature, the maximum processing temperature of the fibre is approximately 140Â°C. Prolonged exposure to elevated temperatures will cause degradation of the fibre, but anti-oxidants are incorporated in polypropylene fibres to protect them during processing and at normal service temperatures.
The various forms of polypropylene have different melting points and hardnesses. Polypropylene is used in car trim, battery cases, bottles, tubes, filaments and bags. Now that we have discussed the various types of plastics, let's look at how plastics are made.