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What is the trade name of the high tenacity and modulus fiber developed by DuPont in 1971?
What is the trade name of the high tenacity and modulus fiber developed by DuPont in 1971?
Kevlar
What is the aromatic co-polyamide that appeared on the market towards the end of the 1980s, similar to Kevlar?
What is the aromatic co-polyamide that appeared on the market towards the end of the 1980s, similar to Kevlar?
Twaron
What technique is used to prepare the polymer Nomex by low-temperature solution polymerization?
What technique is used to prepare the polymer Nomex by low-temperature solution polymerization?
Solution polymerization
What is the solvent used for interfacial polymerization in the production of Nomex?
What is the solvent used for interfacial polymerization in the production of Nomex?
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Why is it important to carry out the polymerization reaction of Nomex at low temperatures?
Why is it important to carry out the polymerization reaction of Nomex at low temperatures?
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What can high temperatures during the polymerization of Nomex lead to?
What can high temperatures during the polymerization of Nomex lead to?
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What is the strength of Kevlar at cryogenic temperatures?
What is the strength of Kevlar at cryogenic temperatures?
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How does the tensile strength of Kevlar change at higher temperatures?
How does the tensile strength of Kevlar change at higher temperatures?
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What happens to Kevlar's strength after 500 hours at 160°C (320°F)?
What happens to Kevlar's strength after 500 hours at 160°C (320°F)?
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At what temperature does Kevlar experience a 50% strength reduction after 70 hours?
At what temperature does Kevlar experience a 50% strength reduction after 70 hours?
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What are some applications of Para-aramids like Kevlar?
What are some applications of Para-aramids like Kevlar?
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Where are PPTA fibers, like Kevlar, commonly used?
Where are PPTA fibers, like Kevlar, commonly used?
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What is the basis for the high modulus versions of Kevlar and Twaron?
What is the basis for the high modulus versions of Kevlar and Twaron?
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How is radial crystalline orientation achieved in Para-aramid fibers?
How is radial crystalline orientation achieved in Para-aramid fibers?
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What is the relationship between molecular orientation and fiber modulus in Para-aramid products?
What is the relationship between molecular orientation and fiber modulus in Para-aramid products?
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What are some properties of Kevlar related to insulation?
What are some properties of Kevlar related to insulation?
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How does the strength of p-aramid fibers compare to steel?
How does the strength of p-aramid fibers compare to steel?
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What is the dimensional stability like for aramid fibers?
What is the dimensional stability like for aramid fibers?
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