Morphology of resin retanning agent with different structure in the leather - scanning electronic microscopy study 不同結(jié)構(gòu)的樹脂復(fù)鞣劑在皮革中形態(tài)的電鏡研究
Two different ancient pottery coatings have been analyzed by microzone - raman spectrum and sem - eds ( scanning electronic microscopy - energy dispersive spectrum ) 摘要利用微區(qū)拉曼光譜與掃描電鏡配置的電子探針等技術(shù),分析了兩塊陶器樣品的陶衣。
Film microstructure is investigated by scanning electronic microscopy ( sem ) . the micrographs showed that glass fiber distributed in epoxy resin with good dispersity , and interweaved with each other homogeneously 并利用掃描電子顯微鏡( sem )對(duì)基底材料進(jìn)行了觀察,發(fā)現(xiàn)玻璃纖維能夠在環(huán)氧樹脂基體中形成均勻的分散,并交織成不規(guī)則的網(wǎng)狀結(jié)構(gòu)。
It also showed good cell affinity to the modified pdl - la scaffold investigated by scanning electronic microscopy ( sem ) and confocal laser scanning microscopy ( clsm ) , comparing with the unmodified pdl - la scaffold 掃描電鏡和激光共聚焦顯微鏡的測(cè)試結(jié)果顯示了軟骨細(xì)胞在原浙江大學(xué)博士學(xué)位論文( 2003 )位自修飾的聚乳酸三維支架內(nèi)部良好的粘附與生長(zhǎng)情況。
Firstly , the tio2 thin films are deposited by dc reactive magnetron sputtering apparatus , and characterlized by n & k analyzer1200 , x - ray diffraction spectroscopy ( xrd ) , scanning electronic microscopy ( sem ) , alpha - step500 . and it was analyzed that the effect on performance and structure of films with the change of argon flow , total gas pressure , the substrate - to - target distance and temperature 第一、應(yīng)用穩(wěn)定的直流磁控濺射設(shè)備制備tio2減反射薄膜并通過(guò)n & kanalyzer1200薄膜光學(xué)分析儀、 x射線衍射分析( xrd ) 、掃描電子顯微鏡( sem ) 、 alpha - step500型臺(tái)階儀等儀器對(duì)薄膜進(jìn)行表征,分析氧分壓、總氣壓、工作溫度、靶基距等制備工藝參數(shù)對(duì)薄膜性能結(jié)構(gòu)的影響。
The as - grown crystals were characterization by cutting and directional , x - ray diffraction , high resolution ohmmeter , ir transmission spectroscopy , visible light absorption spectroscopy , scan electronic microscopy ( sem ) and positron annihilate time technique ( pat ) . the ir transmittance of czt single crystals grown with cd - riched is about 53 % , while 23 % with no cd riched 采用解理實(shí)驗(yàn)、 x射線衍射、電學(xué)性能測(cè)試、紅外透過(guò)譜測(cè)試、可見光吸收譜測(cè)試、 sem蝕坑分析、探測(cè)器的試制等分析測(cè)試方法,并首次采用正電子湮沒壽命譜分析方法來(lái)研究czt單晶體的空位缺陷,綜合表征了所生長(zhǎng)的晶體的質(zhì)量和性能。
On the backgrounds of researches inside and outside country , and cooperating experiments with theories analyses , the influence of different processing technology parameters and different sbs modifier sorts on the sbs modified asphalts " properties has been studied . at the same time , their microstructure are observed through fluorescence optical microscopy and scanning electronic microscopy , thus to direct modified asphalt production . on the above conclusion ' s basement , analysing some disadvantages of the storage stability test of sbs modified asphalt in the current specification , a new storage stability test apparatus is developed 本文在參考國(guó)內(nèi)外研究的基礎(chǔ)上,采用理論、試驗(yàn)相結(jié)合的方法,研究加工工藝參數(shù)以及改性劑種類等對(duì)sbs改性瀝青性能的影響,并通過(guò)熒光顯微鏡、掃描電鏡分析其微觀形態(tài),從而指導(dǎo)sbs改性瀝青的生產(chǎn);在此基礎(chǔ)上,分析我國(guó)現(xiàn)行規(guī)范用來(lái)評(píng)價(jià)sbs改性瀝青儲(chǔ)存穩(wěn)定性方面的不足,開發(fā)了新的試驗(yàn)儀,根據(jù)動(dòng)態(tài)剪切流變?cè)囼?yàn)結(jié)果和微觀狀態(tài)分析,提出一個(gè)新的指標(biāo)? ?離析率r _ s來(lái)評(píng)價(jià)sbs改性瀝青的儲(chǔ)存穩(wěn)定性;最后,針對(duì)不穩(wěn)定的改性瀝青提出改善措施,研究證明摻加增容劑和穩(wěn)定劑是行之有效的方法。
Components , structure and surface morphology of the resulted films were identified by fourier transform infrared ( ftir ) spectroscopy , x - ray diffraction ( xrd ) and scanning electronic microscopy ( sem ) . the analyses showed the content of cubic boron nitride in the resultant films on substrates was rather high and crystal particles of c - bn with uniform size , smooth crystal plane and regular shapes ( quadrangle and hexagon ) densely arrayed on the substrate 傅里葉轉(zhuǎn)換紅外吸收( ftir )光譜儀、 x射線衍射( xrd )儀和掃描電鏡( stm )的測(cè)量結(jié)果顯示,基底上的bn膜中立方相含量很高,且晶粒大小均勻、排列致密,晶形呈規(guī)則的四角和六角形。
Their properties have been investigated by using scanning electronic microscopy ( sem ) , differential scanning calorimetry ( dsc ) , x - ray diffraction ( xrd ) , thermogravimetry - differential thermal analysis ( tg - dta ) , infrared spectroscopic analysis ( ir ) , and gas chromatography ( gc ) , etc . the effects of the mulser ' s stirring rate and the emulsifier concentration on the properties of encapsulated pcms have been systematically studied , and nanopcms have been obtained by increasing the stirring rate or the emulsifier concentration . the influences of different nucleating agents on micropcm performances have also been investigated in detail to search for a suitable nucleating agent to prevent micropcms from super - cooling 首先,系統(tǒng)研究了乳化機(jī)轉(zhuǎn)速和乳化劑濃度對(duì)膠囊性能的影響,并通過(guò)提高轉(zhuǎn)速或乳化劑濃度獲得相變材料納膠囊;其次,系統(tǒng)研究了不同成核劑對(duì)微膠囊性能的影響,找到合適的成核劑抑制了相變材料微膠囊的過(guò)冷現(xiàn)象;再次,詳細(xì)研究了環(huán)己烷對(duì)膠囊性能的影響,并通過(guò)添加適量環(huán)己烷提高了相變材料微膠囊及納膠囊的耐熱溫度。
The primary theory of absorption and desorption was also explained . the effects of primary process parameters , such as hydrogen pressure , time and temperature on the magnetic properties of ndfeb have been researched . the structure and magnetic properties have been analyzed by means of optical metallographic microscopy , scanning electronic microscopy , x - ray diffraction analysis , infrared oxygen detector and magnetic properties measurement 本文設(shè)計(jì)了燒結(jié)ndfeb的氫爆制粉設(shè)備,對(duì)設(shè)備調(diào)試以及使用過(guò)程中出現(xiàn)的主要問(wèn)題進(jìn)行了簡(jiǎn)要的說(shuō)明,提出了一系列解決方法;闡述了吸氫、脫氫的基本原理;研究了氫氣壓力、通氫時(shí)間、氫爆溫度等基本工藝參數(shù)對(duì)磁性能的影響;利用金相顯微鏡和掃描電子顯微鏡, x射線衍射分析,紅外線測(cè)氧分析及綜合磁性測(cè)量?jī)x等手段分析了材料的組織結(jié)構(gòu)和磁性能。