Acetanilide,hexane diacid and potassium hydrogen phthalate were used as additives to improve polyvinyl chloride crystallinity.

通過(guò)傅里葉轉(zhuǎn)換紅外光譜、差示掃描量熱法及廣角X射線衍射法研究了乙酰苯胺、己二酸和鄰苯二甲酸氫鉀與聚氯乙烯的相容性及對(duì)聚氯乙烯結(jié)晶度的影響在线日本高清www免费看。

In this paper,acetanilide,adipic acid and potassium hydrogen phthalate were chosen as additives to advance polyvinyl chloride to crystallize. The effects of compress mold,annealing temperature and time,additive property and loading on the crystallization,microscopicmorphology and mechanical properties of PVC were studied by means of wide angle X-ray diffraction,differential scanning calorimetry,fourier transform infrared spectrophotometer,scanning electron microscopeand tensile test.

本文利用乙酰苯胺、己二酸和鄰苯二甲酸氫鉀作為聚氯乙烯結(jié)晶改性的添加劑亚洲xx视频，通過(guò)廣角X-射線衍射法、差示掃描量熱法欧美色频电影一区二区、傅立葉轉(zhuǎn)換紅外光譜、掃瞄電鏡和萬(wàn)能電子實(shí)驗(yàn)機(jī)研究了熱壓一区二区三区熟女少妇视频、熱處理溫度和時(shí)間3yz14.com、添加劑結(jié)構(gòu)和質(zhì)量分?jǐn)?shù)對(duì)PVC結(jié)晶、微觀形態(tài)和宏觀機(jī)械性能的影響。

The methods determing the groups in the modified starch have been developed, that is acidimetry for the basicity of acidified starch, complexing titration for the substitution degree of carboxymethyl starch, and heat paste titration and carbonyl process respectively for the carboxyl and nitrogen of oxidized starch.

建立了以酸堿滴定測(cè)定酸化淀粉的堿量黄色视频搞得啊啊啊叫、絡(luò)合滴定法測(cè)定羧甲基淀粉的取代度俄国av在线播放、熱糊滴定和羥胺法測(cè)定氧化淀粉中羧基及羰基黄色网站在线看在线看在线看、消化定氮測(cè)定陽(yáng)離子淀粉等幾種變性淀粉的基團(tuán)分析方法。

The extracting coenzyme Q_(10) from Blakeslea trispora using saponific ation was also studied by orthogonal test. And the optimum extracting conditions were obtained as follows: Wet culture was distilled at 70℃for 60min, added caustic potash up to 1.9 times of dry culture, pyrogallol up to 1/2 dry culture, and the concentration of alkali-methanol was 10%.The average recovery of CoQ_(10) was 81.5%.

采用正交實(shí)驗(yàn)，對(duì)醇?jí)A皂化法提取三孢布拉氏霉菌體中輔酶Q_(10)的各工藝條件進(jìn)行了研究，確定最佳的工藝條件為： KOH加量為干菌體質(zhì)量的1.9倍国产xx视频在线，醇?jí)A濃度為10%，焦性沒(méi)食子酸添加量為干菌體質(zhì)量的1/2，在70℃下皂化60min在那里可以免费看啪啪，其平均提取收率達(dá)81.5%。

Glucuronidase and lysozyme release was quantitated by enzyme reactions in which phenolphthaleinglucuronic acid and Micrococcus Lysodeikticus were as the substrates, respectively.

以酚酞葡糖醛酸和Micrococcus Lysodeikticus為基質(zhì)的酶反應(yīng)法測(cè)定β-葡糖苷酸酶和溶菌酶的釋放量福利微拍日韩精品。

Methods The intestine in rats was cannulated for in situ recirculation. UV and HPLC were used to determine the concentrations of phenol red and ferulic acid, respectively.

采用大鼠在體腸回流實(shí)驗(yàn)裝置，采用UV法和HPLC法分別測(cè)定腸循環(huán)液中酚紅和阿魏酸的量亚洲欧美日韩国产综合在线。

The influences of particle size and content of barium titanate on dielectric properties of the composite were discussed.

通過(guò)共混法制備了苯并噁嗪／鈦酸鋇復(fù)合材料，探討了鈦酸鋇粒徑和填充量對(duì)復(fù)合材料介電性的影響。

Effects of the amount of fumaric acid, temperature and reaction time on the reaction were investigated. Fumaropimaric acid was purified by potassium-salt method.

分別考察了富馬酸加入量日韩网站精品导航在线播放免费观看、反應(yīng)溫度及反應(yīng)時(shí)間時(shí)富馬松香制備的影響，并使用鉀鹽法對(duì)制備的富馬松香進(jìn)行純化得到富馬海松酸。

The thesis calcines process by the fact that the laboratory high temperature Stove simulates the rotary kilns producing ascent K2SO4 adds amounts H3PO4,calcination time and the kiln head calcine the temperature specifically for four kind of the mass affecting a titanium dioxide calcines a parameter mainly, take that white degree, eliminates the color force , PH value and attracts a water yield as main quality index ,adopt the homogeneous sample to follow the parameter having carried out an optimization on specially appointed composition and slanting mass metatitanic acid calcining the best calcination having tested, gaining a group of synthetical quality index.

本論文通過(guò)實(shí)驗(yàn)室高溫爐模擬生產(chǎn)現(xiàn)場(chǎng)回轉(zhuǎn)窯煅燒過(guò)程，針對(duì)影響鈦白質(zhì)量的四種主要煅燒參數(shù)K2SO4加量人人射人人干人人操、H3PO4青青免费三级片、煅燒時(shí)間和窯頭煅燒溫度，以白度久操伊人、消色力、遮蓋力和吸油量為主要質(zhì)量指標(biāo)，采用均勻是要法對(duì)特定組成和質(zhì)量的偏鈦酸進(jìn)行了優(yōu)化煅燒試驗(yàn)久久r性，獲得了一組綜合質(zhì)量指標(biāo)最好的煅燒參數(shù)久久久好视频。

According to this, a series of new methods to determine trace cobalt, copper, antimony, cadmium, aluminum and iron was established by taking advantage of the characteristic of metal ions with intense catalysis effect on hydrogen peroxide oxygenating rhodanine.

基于此，利用痕量金屬離子對(duì)過(guò)氧化氫氧化若丹寧具有強(qiáng)烈催化作用的性質(zhì)黄片毛片免费大全，建立了一系列利用新型含羧酸基偶氮若丹寧衍生物催化熒光法測(cè)定痕量鈷黄色视频一区二区三区免费在线观看、銅、銻成人免费视频网站、鎘、鋁和鐵的新方法最新白嫩丰满美女AV网站。