科研之友
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摘要
This study introduced a method of preparing porous buffer materials by foam forming technology. At the same time，the mechani- cal properties of Lyocell fiber buffer materials were improved by adding PET fiber and styrene acrylic lotion. The results showed that when the fiber concentration was 3%，pH value was 7，sodium dodecyl benzene sulfonate（SDBS）was used as foaming agent，and the pure Lyocell fiber buffer material was reinforced with mass fraction 3% styrene acrylic，the elastic modulus could be increased from 37. 30 kPa to 116. 12 kPa. When using mass fraction 9% styrene acrylic for reinforcement，set the mass ratio of control Lyocell fiber to PET fiber （fineness of 17 dtex）was 1∶1，the elastic modulus was 46. 99 kPa，and the density was 0. 030 g/cm3，which could ensure lightweight of the buffer material and greatly improve resilience. The disintegrability test of the buffer materials showed that the pure Lyocell fiber buffer mate- rials and the Lyocell fiber/styrene acrylic emulsion reinforced buffer materials also had certain degradability. ? 2024 China Technical Association of Paper Industry.
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