当前位置：
X-MOL 学术
›
Macromol. Mater. Eng.
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Direct Preparation of High Thermal Stable PLA‐Based Nanocomposite via Extra‐Low Loading of In Situ Exfoliated Ultrathin MWW Zeolite Nanosheets
Macromolecular Materials and Engineering ( IF 4.2 ) Pub Date : 2020-11-12 , DOI: 10.1002/mame.202000406 Chunna Zhang 1 , Sinong Wang 2 , Hongbin Zhang 2 , Peng Liu 2 , Minmin Yu 3 , Guoxiang Zhong 3 , Huihui Zhang 3 , Haiyang Lu 1 , Shuyu Xu 1 , Shuo Dong 1 , Xinyu Guan 4 , Yi Tang 1
Macromolecular Materials and Engineering ( IF 4.2 ) Pub Date : 2020-11-12 , DOI: 10.1002/mame.202000406 Chunna Zhang 1 , Sinong Wang 2 , Hongbin Zhang 2 , Peng Liu 2 , Minmin Yu 3 , Guoxiang Zhong 3 , Huihui Zhang 3 , Haiyang Lu 1 , Shuyu Xu 1 , Shuo Dong 1 , Xinyu Guan 4 , Yi Tang 1
Affiliation
|
Poly(lactic acid) (PLA)‐based nanocomposite incorporated with zeolite MCM‐22 precursor at extra‐low loading of 0.2–0.8 wt% is directly prepared by melt compounding and injection moulding method. The Vicat softening temperature raises up to >155 °C, much higher than that of pure PLA (63 °C), which is very beneficial for its application in many fields such as a container for hot food due to its environmentally friendly property. The high heat resistance property is believed to not be caused by the improvement of crystallinity and glass transition temperature but resulting from the obstruction of PLA polymer chain movement originating from >CO···HOSi hydrogen bonding between PLA molecules and the in situ exfoliated MWW zeolite nanosheets with abundant exposed surface silanol groups. Such a method would pave a new way not only for designing more types of thermal stable polymer composites but also for delaminating multi‐layered zeolite precursors.
中文翻译：
通过原位剥落超薄MWW沸石纳米片的超低负荷直接制备高热稳定的PLA基纳米复合材料
通过熔融混炼和注塑方法直接制备以0.2-0.8 wt％的超低负荷掺入沸石MCM-22前体的聚乳酸基纳米复合材料。维卡软化温度升高到> 155°C，远高于纯PLA（63°C）的温度，由于它具有环保特性，因此在许多领域（例如热食容器）中的应用非常有益。高耐热性被认为是不被结晶度和玻璃化转变温度的提高引起的，但由PLA聚合物链移动始发的阻塞从>CO···ħ所得 ö PLA分子与具有大量暴露的表面硅烷醇基团的原位剥离MWW沸石纳米片之间的Si氢键。这种方法不仅为设计更多类型的热稳定聚合物复合材料，而且还为多层沸石前体分层提供了新途径。
更新日期：2020-12-15
中文翻译：
通过原位剥落超薄MWW沸石纳米片的超低负荷直接制备高热稳定的PLA基纳米复合材料
通过熔融混炼和注塑方法直接制备以0.2-0.8 wt％的超低负荷掺入沸石MCM-22前体的聚乳酸基纳米复合材料。维卡软化温度升高到> 155°C，远高于纯PLA（63°C）的温度，由于它具有环保特性，因此在许多领域（例如热食容器）中的应用非常有益。高耐热性被认为是不被结晶度和玻璃化转变温度的提高引起的，但由PLA聚合物链移动始发的阻塞从>CO···ħ所得 ö PLA分子与具有大量暴露的表面硅烷醇基团的原位剥离MWW沸石纳米片之间的Si氢键。这种方法不仅为设计更多类型的热稳定聚合物复合材料，而且还为多层沸石前体分层提供了新途径。
京公网安备 11010802027423号