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動(dòng)態(tài)力學(xué)分析——材料黏彈表征的多用途技術(shù)
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| In today’s increasingly competitive environment the development of high performance advanced materials is very important. Many material manufacturers no longer specialize in a single product area but have diversified. As a result research and development laboratories often work on a range of materials that can have significantly different physical and chemical properties. For this reason analytical instrumentation must be extremely flexible in that it must be able to accommodate samples existing in a variety of physical states without compromising sensitivity and reproducibility. Dynamic mechanical analysis (DMA) is no exception and this review will discuss the use of DMA for the viscoelastic characterization of a wide range of samples including liquids, polyester film, latex rubber, prepreg and composites. |
| 在當(dāng)今日益激烈的競(jìng)爭(zhēng)環(huán)境下,高性能先進(jìn)材料的開(kāi)發(fā)尤為重要。許多材料制造商不在專(zhuān)注于單一產(chǎn)品領(lǐng)域,而是越來(lái)越趨向于多元化。以至于現(xiàn)在開(kāi)發(fā)研究實(shí)驗(yàn)室經(jīng)常研究一系列有明顯的不同物理和化學(xué)性質(zhì)的材料。因?yàn)檫@個(gè)原因,分析儀器必須非常靈活,它必須能夠容納存在各種各樣的物理狀態(tài)的樣品且不影響其靈敏度和重現(xiàn)性。動(dòng)態(tài)力學(xué)分析(DMA)也不例外,本文將討論使用DMA測(cè)量系列材料的粘彈性特征,包括液體、聚脂薄膜、乳膠、預(yù)浸料坯和復(fù)合材料。 |
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