Compared to the thermal conductivity at room temperature, the thermal conductivity of the sample exhibited an increasing trend with rising temperature.
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High Structural Stability, High Compressive Strength, Excellent Thermal Insulation and Mechanism of Needled Quartz Fiber Felt/Phenolic Aerogel Composites.
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The sentences
With the gradually increasing phenolic resin content, both the aerogel particle size and pore volume exhibit a decreasing trend.