Measurement example of DSC (Differential Scanning Calorimetry)

アイテス

Polyethylene (PE) has several types and different material properties depending on the length and number of its side chain branches. From the melting peak of crystalline polyethylene, we measured the melting point and crystallinity using DSC and compared them for each type of polyethylene. LDPE, which has many long side chains and is less dense, resulted in a low melting point and low crystallinity, while HDPE, which tends to be denser, showed high values for both melting point and crystallinity. Additionally, LLDPE, which has many relatively short side chains and is more likely to be dense than LDPE, exhibited intermediate values for both melting point and crystallinity between LDPE and HDPE. [Types of Polyethylene] ■ LDPE (Low-Density Polyethylene): Low rigidity and high flexibility ■ LLDPE (Linear Low-Density Polyethylene): Tougher than LDPE but has inferior processability ■ HDPE (High-Density Polyethylene): High rigidity and excellent tensile strength, impact strength, and hardness

Date and time
Capital
Entry fee

Related product information

Measurement examples of DSC (Differential Scanning Calorimetry)
Comparing thermal properties with DSC! We will discuss the impact of type identification and the state of polymer molecular chains on material properties!

【Results】 - LDPE, which has many long side chains and is less likely to have dense molecular chains, has a low melting point and low crystallinity. - HDPE, which has fewer side chains and is more likely to have dense molecular chains, shows high values for both melting point and crystallinity. - LLDPE, which has many relatively short side chains and is more likely to be dense than LDPE, shows intermediate values for melting point and crystallinity between LDPE and HDPE.
Total support service for chemical analysis
We conduct surface analysis, foreign substance analysis, and organic composition analysis.

For more details, please refer to the PDF document or feel free to contact us.
DSC (Differential Scanning Calorimetry)
Observe the degree of endothermic/exothermic reaction of the sample! The temperature range is possible from -90°C to 550°C.

[Analysis Examples] ■Relative evaluation of curing degree by measuring the glass transition temperature of thermosetting resins ■Measurement of crystallinity of thermoplastic resins ■Measurement of specific heat capacity *For more details, please refer to the PDF document or feel free to contact us.