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理论与研究                                                 李荣付·杂化聚酰亚胺的制备及其耐原子氧性能研究


                    Abstract: Organic-inorganic hybrid polyimide materials containing silicon were prepared by sol-gel
                method; in the ground simulation equipment, the ground test of atomic oxygen effect on the prepared
                materials was carried out. The experimental results showed that the quality of Si 2 O 3  was the most important
                factor affecting the quality loss (ΔM). Within a certain range of quality, with the increase of Si 2 O 3  content, the
                quality loss (ΔM) decreased; beyond a certain value, the quality loss (ΔM) had no obvious relationship with
                the amount of Si 2 O 3  added. In addition, a proper amount of TEOS played an important role in the denudation
                of atomic oxygen resistance. When the amount of TEOS was less than 1, ΔM decreased with the increase of
                TEOS. When the amount of TEOS exceeds 1, the change of ΔM with the increase of TEOS was not obvious. For
                the hybrid polyimide containing silicon, Si element had a great influence on the surface element content of
                the experimental material. After the experiment, the O and Si elements increased obviously, while the C and
                N elements decreased obviously.
                    Key words: mass loss; atomic oxygen denudation resistance; inorganic hybrid material; atomic oxygen
                effect; polyimide
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                                        韩国公司推 GMT-PP 实现汽车减重
                                 Korean company launches GMT-PP to achieve automotive weight loss
                    据外媒报道,韩国韩华先进材料公司(Hanwha Advanced  Materials)表示,其计划在不久的将来制作一种
                GMT-PP 汽车座椅框架,该框架采用玻璃纤维毡增强热塑性塑料聚丙烯(GMT-PP)复合物制成,与常规的钢
                制框架相比,具有诸多优势。除了比现有的钢制框架减重 15%~20%(现有的是 9.3  kg 的复合物框架与 10.98  kg
                的钢制框架相比),塑料座椅框架还支持 60:40 的分离式设计,从而使得安装 3 个三点式安全带成为可能。此外,
                GMT-PP(玻璃纤维毡增强热塑性塑料聚丙烯)复合物具备必要的机械强度,可用于安全带锚固部件。
                    此外,该框架还可减少 22% 的组件(其中钢制框架组件从 37 减至 25 个),不会有钢材腐蚀问题,而且因为
                无需焊接,也降低了装配成本。此外,使用塑料也增加了设计选择,如可重新设计捆绑和保持行李的位置,塑料
                框架的前向和后向力矩也与钢制框架相当。
                    在去年于韩国首尔举行的亚洲复合材料展览会(JEC Asia)上,韩华先进材料公司在展示中概述了关于下一
                代汽车座椅的愿景。据该公司介绍 : “ 未来的汽车座椅是一个工作的地方、一个打盹的地方,甚至是在健康座椅
                上进行乘员姿势分析的地方。”  韩华先进材料公司希望能够设计低重心的汽车座椅,降低车辆整体重心,从而提
                升车辆的整体安全性。
                    未来的汽车内饰设计可能会提供可互换 / 可交换的汽车座椅,并且配备电子调节功能等诸多功能,但是更多
                功能意味着车辆可能会超重,因此可能会通过使用更多塑料来解决此问题。此外,乘客也能够拥有更大的车内空间,
                因为如果只有 3 名乘客,其中一个汽车座椅可以拆卸下来,放置在家中。
                                                                                            摘编自“盖世汽车”
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                2019     第   45 卷                                                                       ·7·
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