Influence of time and temperature on polymers

The Effects of Time on Polymers | Plastics Technology

If we extend the time scale of the measurement process, we encounter a continuing change in the response of the material. If the material is ...

Influence of time and temperature on polymers - YouTube

In this video I discuss the some of the influences of time and temperature changes, close to room temperature, on the mechanical behavior of ...

Polymers and Temperature – A Hot Relationship

Increasing temperature reduces the shear viscosity and RelaxationWhen a constant strain is applied to a rubber compound, the force necessary to maintain that ...

Time, temperature and water aging failure envelope of thermoset ...

Exposures to water, humidity, temperature and UV radiation are known to substantially influence the (thermo-) mechanical properties and ...

The Effects of Temperature | Plastics Technology

The polymers we work with follow the same principles as the body: the hotter the environment becomes, the less performance we can expect.

Effect of polymerization temperature and time on the ... - PubMed

Increasing the polymerization temperature for the autopolymerized denture base resins from 30 degrees C to 60 degrees C decreased the residual MMA content of ...

Influence of time and temperature on pyrolysis of plastic wastes in a ...

▻ Temperature has a significant influence in the properties and proportions of pyrolysis products. ▻ The influence of time in a semi-batch ...

Polymer Glass Transition Temperature - Material Properties, Impact

Polymers with higher Tg values generally have higher melting temperatures. Additionally, a higher Tg can result in lower thermal conductivity, ...

Impact of Sintering Time and Temperature on Mechanical Properties ...

In commercial polymer powder bed fusion systems, the powdered feedstock is generally semi- crystalline and has both a glass transition ...

Time–temperature superposition - Wikipedia

It has been shown experimentally that the elastic modulus (E) of a polymer is influenced by the load and the response time. Time–temperature superposition ...

Kinetics and Time−Temperature Equivalence of Polymer Degradation

Practically, properties of polymers change dramatically from below to above Tg. Therefore, a degradation test within a temperature range from ...

time-temperature superposition, ta-246 - TA Instruments

Both time and temperature have a similar effect on the linear viscoelastic properties of polymers. At low temperatures, the relaxation processes of a polymer, ...

Low Temperature Properties of Polymers

... effect as a much higher load at low temperatures – brittleness in plastics is as much a function of time as it is of temperature. Page 5. Page 5 of 6.

(PDF) Effect of time and thermo-mechanical couplings in polymers

In this context, the effects of time are almost unanimously associated with viscous effects. It has also been observed that the dissipative ...

Influence of moisture on the time and temperature dependent ...

The influence of humidity on the materials behaviour shows that the humidity diffusion does not only effect a shift in the glass transition temperature and a ...

Effects of annealing time and temperature on the crystallinity and ...

The polymer's crystallinity plays a significant role in the material's performance. For example, an increase in overall crystallinity leads to ...

Thermal phase transitions of polymers - A102 - CKN Knowledge in ...

Upon heating and cooling, polymers experience distinct phase transitions when passing through specific temperatures. When temperature is raised, ...

Effect of Temperature on Mechanical Properties of Polymers

By now, the effect of temperature on time-dependent behavior of polymers is well understood. ... Since temperature is kinetic rather than ...

The effect of time and temperature of polymerization reaction on the...

In addition, the extraction ability increased with polymeriza- tion temperature and reached its maximum at 60 °C. Therefore, 12 h and 60 °C were selected as the ...

Effect of Temperature on the Mechanical Properties and ... - MDPI

However, at higher temperatures, the growth of chains is more significant than the formation of crystals, and thus, the molding temperature adversely affects ...