nucleating 中文意思是什麼

Study on nucleating location and formation of fretting fatigue cracks

微動疲勞裂紋萌生位置及形成方式研究

The suitable nucleating agents can be selected according to thermodynamics

根據熱力學可以選擇合適的形核劑。

Effects of nucleating agent on crystallizing properties and mechanical properties of pbs

結晶性能及力學性能的影響

Study of polypropylene modified by crystalline form nucleating agent and m - hos whisker

成核劑和堿式硫酸鎂晶須改性聚丙烯

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，系統研究了乳化機轉速和乳化劑濃度對膠囊性能的影響，並通過提高轉速或乳化劑濃度獲得相變材料納膠囊；其次，系統研究了不同成核劑對微膠囊性能的影響，找到合適的成核劑抑制了相變材料微膠囊的過冷現象；再次，詳細研究了環己烷對膠囊性能的影響，並通過添加適量環己烷提高了相變材料微膠囊及納膠囊的耐熱溫度。

The results from x - ray diffraction demonstrated that pp / mmtome was a fully intercalated nanocomposite, pp / mmtom and pp / ommt were partly intercalated nanocomposites, but the intercalation effect of pp / mmtom nanocomposite was better ; the crystallization characteristics of pure pp and pp / mmt nanocomposites were investigated by dsc, waxd and pom. the result of these testing showed that mmt nano - layers acted as nucleating agents for the crystallization of pp, the addition of mmt had effect on the crystallization process, leading the increasing of crystallization temperature crystallization rate and crystallinity, but also the dimension of spherulite reduced. but the formation of pp crystal did n ' t change, the formation of pp crystal in three pp / mmt nanocomposites and pure pp were a - form on the whole ; influences of three sorts of mmt on mechanical properties of pp / mmt nanocomposites were studied, as a result, the addition of mmt comprehensively improved mechanical properties of pp : notched impact strength, tensile strength and flexural properties were all increasing, but the extent of increasing were n ' t large

通過xrd分析比較這三種pp mmt納米復合材料微觀結構得到， pp mmt _ （ ome ）屬于完全插層， pp mmt _ （ om ）與pp ommt的插層程度相近，但是pp mmt _ （ om ）相對較好；通過對純pp和三種pp mmt納米復合材料的結晶性能研究發現，蒙脫土納米片層對pp結晶產生明顯的異相成核作用，結晶能力增強，使pp的結晶溫度和結晶速率提高，結晶度增加，球晶晶粒細化，但是沒有改變pp的結晶形態，三種pp mmt納米復合材料的結晶形態都屬于晶；通過對pp mmt納米復合材料的力學性能測試得知，蒙脫土的加入全面提高了pp的力學性能，缺口沖擊強度、拉伸強度和彎曲性能都有一定程度的提高，浙江{ _業大學碩十學位論文摘要但是提高幅度都不是很大，不過ommt 、 mmtom和mmtc ） me三種蒙脫土對pp力學性能有著不同的改性作用，其中pp / mmtom最好， pp月邊mto崛次之， pp / ommt最低，這種情況主要是由蒙脫土對pp結晶性能的影響和蒙脫土的納米改性作用造成的。

This has an important meaning to the industrial manufacture. dsc, waxd and polarizing microscope with hot stage experiments were performed to describe what led the ssp rate acceleration of pet / mmt. it was shown that montmorillonite acted as a very good nucleating agent in pet crystallization process, which results in the lower crystallinity, more small microlites, and more surfaces of microlites

為研究pet mmt固相縮聚效率提高的原因，通過熱臺偏光顯微鏡、 dsc 、 x -射線衍射等手段對樣品的結晶進行觀察與分析研究，結果表明蒙脫土對pet的結晶有明顯的成核作用，使其晶核生成速率迅速提高，晶核數量明顯增多，從而使整個結晶過程的時間變短，同時形成了更多結構不完善的微晶體。

The results shows that the addition of nucleating agents increased the onset temperature and peak temperature and improved crystallization rate of pp

結果表明，兩種成核劑的加入均可提高聚丙烯的結晶起始溫度和結晶峰溫度，並加快結晶速度。

Bacterial ice nuclei are proteins, named ice nucleating proteins, coded by ice nucleating genes, and 11 ice nucleating genes have been cloned, sequenced and expressed in " escherichia coli "

細菌冰核是一類蛋白質，稱冰蛋白，由細菌冰核基因編碼，據報道已有11種冰核細菌的冰核基因被克隆並在大腸桿菌中得到表達。

The nucleating effects of and nucleating agent on the crystallization behavior of polypropylene ( pp ) were studied by differential scanning calorimetry ( dsc ) and x - ray diffraction spectrum ( xrd )

摘要用差示掃描量熱儀和x射線衍射儀對兩種類型成核劑改性的聚丙烯的結晶行為進行了表徵。

The results indicate that the addition of a nucleating agent and a thickening agent can inhibit supercooling and eliminate segregation

結論是，加入成核劑和增稠劑能抑制過冷並消除分層。

Effect of nucleating agents on crystallization, mechanical and rheological behavior of poly ethylene terephthalate

力學性能和流變性能的影響

Adding nucleating agents to metal liquid is a common way to improve the structure and mechanical properties in solidification process

摘要金屬凝固過程中加入形核劑是改善金屬材料組織和性能的常用方法。

In this paper, the crystallinity of pvc modified by homemade nucleating agent and heat treatment was increased. the maximum crystallinity reached 12 %

採用自製的成核劑對pvc進行噴液處理和熱處理的各種改性，提高了pvc的結晶度，使pvc的結晶度達到了12 。

The development situation and types of nucleating agent for clarified polypropylene are introduced systematically. the prospect of the market and the tendency of technology development are discussed briefly

摘要介紹了透明聚丙烯成核劑的種類及其在國內外的研究開發進展，並對成核劑的國內外市場現狀、技術開發趨勢做了簡要介紹。

The overall properties of the composite were the best when the content of - nucleating agent was 0. 5 % and the content of aid crosslinking agent was 3 %, the property of the composite came close to that of common engineering plastics

當成核劑用量為0 . 5 % 、助交聯劑為3 %時，復合材料的綜合性能達到最好，接近普通工程塑料的各項力學性能。

These show that existence of montmorillonite can change the nucleating mechanism and growth style of nylon 66 ' s crystallization process. 3

這表明蒙脫土納米片層的存在並可明顯改變尼龍66的結晶成核機理和生長方式。

With the addition of nucleating agent, the crystallinity increased, resulted in higher rigidity and lower impact strength than those of pure pp ; while with the addition of - nucleating agent, the relative content of crystalline form of special sheaf - like structure increased and resulted in increase of impact strength and the toughness

成核劑的加入使聚丙烯結晶度增大，從而使剛性增加，但抗沖擊強度有所下降；成核劑的加入使聚丙烯中晶含量大幅度地提高，從而使聚丙烯抗沖擊強度提高，即韌性增加。