緩聚劑 的英文怎麼說
中文拼音 [huǎnjùjì]
緩聚劑
英文
retarder-
Tao feng changzhou chemical company located in the jiangsu international plastics city, is in changzhou city, the river additives ltd. and jurong city tao reagent production plant product sales window, the major products : toluene, pure benzene, xylene, n - octanol, ethyl acetate, acetic acid small fat, silicone oil, aniline, poly - succinimide, benzene triazole derivatives, isopropanolamine, ethanolamine, alkylation two aniline, scale inhibitor, promoting agents, antioxidants, ppd, defoamer, metal deactivator, hx - 3308 scale and corrosion inhibitor, hx03 - 12 diesel flow improver, parathion octyl - zinc chloride bridge acid, chlorine bridge anhydride, chlorobenzene, double - dicyclopentadiene, norbornene anhydride
常州濤峰化工有限公司座落在江蘇國際塑化城，是常州市夏溪助劑有限公司和句容市龍濤試劑廠生產的產品的銷售窗口，主要經營產品：甲苯、純苯、二甲苯、辛醇、乙酸乙脂、乙酸丁脂、硅油、二苯胺、雙聚丁二酰亞胺、苯三唑衍生物、異丙醇胺、乙醇胺、烷基二苯胺、防垢劑、促進劑、抗氧劑、降凝劑、消泡劑、金屬鈍化劑、 hx - 3308阻垢緩蝕劑、 hx03 - 12柴油流動改進劑、硫磷丁辛基鋅鹽、氯橋酸、氯橋酸酐、氯苯、雙聚環戊二烯、降冰片烯二酸酐等。The expansion agents can only make up the shrinkage to some extent, and the compensation effects would be reduced when the retardener and fly - ash are used. the expansion agents are not panaceas to avoid the shrinkage cracking as expansion can also reduce the concrete soundness. under bad curing condition, the polypropylene fibrillated film fiber can improve concrete ' s anti - crarking property, while the nominal steels have very unobvious effects. to reduce the concrete shrinkage thus avoid the cracking, the former factors must all be taken into account in concrete proportion design to develop sound concrete
研究結果表明，水泥的品種和用量是影響混凝土收縮值的主要因素之一，當混凝土中水泥用量超過470kg / m ~ 3時，混凝土的收縮值超過400 10 ~ （ - 6 ） ，在約束狀態下存在高開裂風險；採用細砂使混凝土單位用水量顯著提高，收縮值也大幅增加；優質粉煤灰總體上能抑制混凝土的收縮，以超量方式摻入其抑制作用更加明顯，但粉煤灰混凝土早期的粘聚性較差，應注意養護，以免失水產生龜裂；早強減水劑和緩凝減水劑都會使混凝土收縮值增加；膨脹劑只能補償混凝土部分收縮，同時受緩凝劑和粉煤灰的抑制，而且膨脹使混凝土的體積安定性增加了不確定因素，膨脹劑不是解決混凝土收縮裂縫的良方。Hi this thesis, the setting time of various retarders had been tested, in which three retarders with good retarding action, citric acid, sodium tripolyphosphate, bone glue are respectively chosen from three types of retarders, hydroxyl carboxylic acid type, phosphate type and protein type, and the strength and setting time of gypsum added with them are determined. effect of some factors, such as ph value, fineness of hemihydrate, type of gypsum on the retarding action of the retarders is also studied
本文對多種緩凝劑進行凝結時間測試，選擇效果良好的羥基羧酸、無機鹽和蛋白質類型的三種緩凝劑：檸檬酸、多聚磷酸鈉和骨膠，測定它們對石膏凝結時間、強度等宏觀性能的影響，並分別研究ph值、石膏細度和石膏種類等因素對它們的緩凝效果的影響。The shrinkage reducing rate can reach to 70 % at the 7th day, and the shrinkage reducing rate can reach to 40 % at the 28th day. it doesn ’ t reduce the intension of the concrete. it can have an ability of 10 18 % of reducing water rate
通過對比試驗發現，聚丙烯酸鹽類減縮劑的最佳摻量為水泥質量的1 . 2 % ， 7天減縮率可達70 % ， 28天減縮率可達40 % ，且不降低混凝土的強度，具有10 18 %的減水率，有一定的緩凝作用。In the system the effects of photoinitiator and monomer concentration on grafting are not distinct, while photo - reduction time, uv irradiated polymerization time and uv light intensity have more effects on grafting yield
實驗發現，光敏劑濃度對接枝率有一定影響；光還原時間增加，接枝率明顯增加；聚合前期接枝率提高較快，反應後期增加緩慢；紫外光照射強度的改變會影響接枝率。The inserting method and properties of the composite materials in consist of omt and poly ( styrene - butyl acrylate ) had been researched ; the ultra - fine organic rigid particles crosslinked polystyrene ( xps ) has been synthesized by emulsion polymerization, the effect of the synthesis process on the size of organic rigid particles was discussed. the cause of the increasing mechanical properties of pp composite materials, which were strengthened and toughened with organic rigid particles and elastomer, had been investigated. the results of studying viscosity and precipitate height of sio2 nano - particles suspension showed that the sio2 nano - particles are very good dispersed by dp270 or cat 639w dispersant
通過粘度法和沉降法測定結果的一致性，說明分散劑dp270和cat639w對sio _ 2納米粒子有較好的分散性， dp270的最佳用量為0 . 2時懸浮液粘度從35 . 1mpa ? s降為23 . 3mpa ? s ， cat639w最佳用量為0 . 4時懸浮液的粘度從35 . 1mpa ? s降為23 . 1mpa ? s ；通過研究分散劑存在下納米粒子的苯丙乳液聚合動力學，發現納米粒子的存在對乳液聚合有一定的緩聚作用，並討論了乳化體系、溫度、引發劑、表面處理劑以及納米粒子用量對聚合的影響。The scale and corrosion inhibition of polyaspartic acid and its mixture of phosphorous water treatment agent ( hedp, pbtca, detpmp ) is discussed
摘要研究了聚天冬氨酸及其與膦系水處理劑（ hedp 、 pbtca 、 detpmp ）復合的阻垢緩蝕性能。The result shows that mixture has better scale and corrosion inhibition than only polyaspartic acid and is a high efficient, low phosphorus, partly biodegradable water treatment agent
結果表明，聚天冬氨酸與膦系水處理劑復合比單獨使用聚天冬氨酸具有更好的阻垢緩蝕性能，是一種高效、低磷、可部分生物降解的水處理劑。The main conclusion are as bwlow : 1. for microflocilation / uf progress, ferric salts were better than aluminum salts ; the more dose of coagulant, the high removal rate of organic matter. however when dose increased to a certain level ( 6mg / l alo2 ), fouling was higher instead
主要成果和結論如下: 1 .微絮凝-超濾工藝中，鐵鹽混凝劑比鋁鹽要好;隨著混凝劑投加量的增加，有機物的去除率也隨著增加，但當混凝劑投加量增加到一定量（以al2o3計為6mg / l ）時，反而會加劇膜污染;投加pam （聚丙烯酰胺）對提高有機物去除率沒有幫助，但可以緩解膜污染。The influence of retarder on the seaing time and ultimate strength of gypsum plaster was investigated in this paper. the experimental results indicate that the effect of single retarder, such as citric acid, is inferior to that of composite retarder which was made of blending citric acid with a few portland cement ( about 0. 5 ?, by weight ). the effect of different water - retention agents, such as polyvinyl alcohol ( pva ), carboxymethyl cellulose ( cmc ), and na - bentonite, etc., was also studied, and the results demonstrate that by means of adding organic and inorganic water - retention agent simultaneously the water - retention of plastering slurry can obviously be improved. the optimal mix proportion of gypsum plaster suitable to finish coat of walls and ceilings of buildings has been got by use of factorial experiment with orthogonal array accounting for interactions between factors each other
研究了分別以檸檬酸、檸檬酸與普通硅酸鹽水泥復合物作緩凝劑，調節粉刷石膏的凝結時間，並對比2種緩凝體系對石膏抗折、抗壓強度的影響.比較不同保水劑（聚乙烯醇、羧甲基纖維素）以及相同量的保水劑在不同工藝流程下保水效果上的區別.探索了有機保水劑和無機保水劑對粉刷石膏的保水性的影響.結果表明，檸檬酸與普通硅酸鹽水泥的復合緩凝劑比單純的檸檬酸更能有效地延緩建築石膏的凝結，同時建築石膏的抗折、抗壓強度降低幅度減小Emulsion polymerization is a reaction system which can be characterized as a low - viscosity, good - heat - transference, and at the same time, the environment friendly. therefore, it is being widely used to prepare paints, vanishes, adhesives, rubbers and controlled drug release systems
乳液聚合因具有體系粘度低、傳熱快、環保以及分隔效應等特點，其產物已廣泛運用於塗料、油漆、粘合劑、橡膠和藥物緩釋膠囊載體等領域。分享友人