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stearic adj.【化學】(取自)硬脂的;似硬脂的。

stearic acid

And through the comprehensive comparisions , along with the dsc analysis of different pcms , it was determined to select the stearic acid ( c18h36o2 ) as the pcm in this paper , provided by beijing chemical reagent company . the stearic acid has an ideal melting point and attractive thermal capacity . all these properties make it an attractive candidate as a potential pcm for heat storage in mid - temperature lhtes systems 并在對多種相變材料做全面比較以及dsc分析的基礎上,確定選用北京化學試劑公司提供的硬脂酸( c18h36o2 )作為本文的相變材料( pcm ) ,其熔點(相變溫度)適中,相變潛熱較大,這些特性使其成為一種中常溫相變儲熱裝置中理想的相變儲熱介質。

This article involves the work of three parts as followed : 1 ) cso assembled ordering system and its micromorphology the assembling of c & o was successfully made by lb technique basing on literatures and our labs . we also observed the the microstructure by dfm . by using stearic acid ^ arachic acid and octadecanyl amine as the assistant materials , we successfully controlled the structure of c ^ aggregation C60組裝有序體系的表面形貌研究c60的組裝是在文獻和實驗室工作的基礎上,通過摸索,改進實驗方案,采用lb的方法,以二十酸、十八酸和十八胺相混合作為輔助成膜材料,成功地控制c60的聚集結構。

When finished the tests of chloride containing in the chlorinated polyethylene and the confecting of 0 . 001 % standard vitriol liquor in the stearic acid standard , it was found out that the test result according to the test methods in the standard requirement were different from the actual requirement 摘要按對氯化聚乙烯標準中氯含量的測試和硬脂酸標準中0 . 001 %硫酸標準溶液的配制方法進行試驗后,發現按標準中要求的試驗方法檢測出來的數據與實際要求不一致。

The effect of different additives on the properties of water and oil absorption as well as the maximum load of wheat flour tableware was studied by using liquid paraffin and stearic acid as waterproof agents , sodium alginate and carboxymethyl cellulose sodium ( cmc - na ) as intensifier 摘要以液態石蠟和硬脂酸作為防水劑,以海藻酸鈉和羧甲基纖維素鈉作為補強劑,研究不同添加劑對小麥粉餐具的吸水性、吸油性和最大承載等使用性能的影響。

The research content includes stearic acid dry method modification and wet method modification , silane dry method modification and wet method modification , the compound modification of silane wet method and stearic acid dry method modification , and silane and stearic acid cooperation modification 研究內容包括硬脂酸、硅烷干法和濕法改性,硅烷濕法與硬脂酸干法復合改性,硅烷與硬脂酸復配干法改性。

It suggested that the selection of palmitic , stearic , oleic and linoleic acids contents in offspring shoald be in maternal plants , while linolenic acids content should be improved screening the single seed or selected in higher generations 棕櫚酸含量、硬脂酸含量、油酸含量和亞油酸含量以細胞質及母體選擇響應和互作選擇響應為主,亞麻酸含量的胚普通選擇響應和互作選擇響應為主。

The result indicated the stearic acid , sucrose fatty acid ester and white beeswax can markedly improved the moisture barrier properties , and the stearic acid , sucrose fatty acid ester had a little effects on the mechanical properties of the films 實驗表明,加入硬脂酸、蔗糖脂肪酸脂及蜂蠟使膜的阻水性有了較大的提高,添加硬脂酸、蔗糖脂肪酸脂對膜的機械性能影響不大。

The general heritabilities were the main parts of heritabilities for palmitic acids content and oleic acids content , but the interaction were more important for stearic , linolenic and linolenic acids contents 亞麻酸含量是以基因的加性效應和加性環境互作效應為主,棕櫚酸含量、硬脂酸含量、油酸含量和亞油酸含量以基因的顯性和顯性環境互作效應為主。

It is showed from active exponent analysis that surface energy and polarity of the modified magnesium hydroxide are decreased ; and jr analysis shows that the stearic acide is attached to magnesium hydroxide by chemical bond 活化指數測定結果表明改性后的氫氧化鎂由親水疏油性變成了親油疏水性;紅外光譜表明硬脂酸與氫氧化鎂之間形成了化學鍵。

Improvement of conductivity is more distinct , for example , titanate coupling agent and stearic acid decrease its composite ' s room temperature resistivity 10l - - 102 times , as cb content is 15 % ( w / w ) 在導電性能上表現更為明顯,如鈦酸酯偶聯劑和的硬脂酸在炭黑含量為15時,可使材料的電阻率降低1 2個數量級。

The emphases in this paper are the measurement and analysis of thermal characteristics of stearic acid as phase change material and the design and simulation of the latent heat thermal storage radiator 全文共分為五個部分,硬脂酸相變過程中熱性能的測試與分析、相變蓄熱式電暖器的設計與模擬是本文的重點。

The surface of magnesium hydroxide is modified with stearic acide , and this paper elaborates the influence of factors such as quantities of stearic acide , time , temperature 摘要通過采用硬脂酸對氫氧化鎂進行表面改性的試驗,闡述了硬脂酸的用量、時間、溫度等各種因素對氫氧化鎂改性的影響。

Among selection response components , maternal and cytoplasm general responses and / or interaction responses were more important for palmitic , stearic , oleic and linoleic acids contents 在普通狹義遺傳率中,棕櫚酸含量、油酸含量和亞麻酸含量以細胞質普通遺傳率和母體普通遺傳率為主。

The cucumber dna voltammetric biosensor was prepared using the stearic acid - modified carbon paste electrode , and the conditions for the determination of cucumber dna using the sensor were optimized 以十八酸修飾的碳糊電極作基體傳感器,制備了黃瓜dna伏安傳感器。

Among all kinds of genetic main effects , the embryo effects were the largest for palmitic , stearic and linoleic acids , and cytoplasm effects were the largest for oleic and linolenic acids 在脂肪酸組分的遺傳主效應中,棕櫚酸、硬脂酸和亞油酸含量是以胚主效應為主。

Used stearic acid coaed nanometer zno powder , the process conditions of surface modification were discussed and find the best process conditions in this paper 摘要用硬脂酸作改性劑,對其改性納米氧化鋅的工藝條件進行了研究,并給出了適合工業化生產的最佳工藝條件。

Properties : white powder , insoluble in water , but soluble in alcohol . it will decompose into stearic acid and metal salt when meeting strong acid 性質:白色粉末,不溶于水,溶于酒精,遇到強酸則分解成硬脂酸和金屬鹽。

It is proved by infrared spectral analysis that stearic acid can react with hydroxide of nano - alumina surface 對納米相al2o3用硬脂酸做親油處理,紅外光譜分析表明硬脂酸成功與納米al2o3的表面的羥基進行反應。

According to the ftir spectra , the modification process was efficient to coat a layer of stearic acid ( sa ) on the powder surface 根據紅外光譜分析,在粉末表面施覆硬脂酸或聚乙二醇可有效改變其表面官能基。