縮醛度 的英文怎麼說
中文拼音 [suōquándù]
縮醛度
英文
degree of acetalization-
Polyvinyl - formal enamelled round copper wire with high mechanical properties
高強度縮醛漆包銅圓線Enameled round winding wires - part 3 : polyvinyl - formal enameled round copper wires with high mechanical properties
漆包圓繞組線第3部分:高強度縮醛漆包圓銅線The results indicate that the sort of walling material is the most important factor in bond capacity of mortar, the mixed quantity of polymer and mortar strength follows, and there is a remarkable increase in mortar bond strength when the mixed quantity of pvb and mc is 20 % ~ 30 % and 0. 05 % ~ 0. 1 % respectively
結果表明：塊體類別是最主要的影響因素，其次是聚合物摻量和砂漿強度；當聚乙烯醇縮丁醛和甲基纖維素的摻量分別為水泥質量的20 % ~ 30 %和0 . 05 % ~ 0 . 1 %時，可較大幅度提高砂漿的黏結強度。And the value drop to the lowest at ph = 0. 8. as the increase of heat treatment temperature, the pore size distribution peak of sio2 microspheres is very narrow, meanwhile the specific surface area is the smallest before 160 c. the polymer template is removed at 350 c, so the pore structure of sio2 particles has a big change which involve the increase of specific surface area and the broaden of pore size distribution peak. with the continuous raise of temperature the sio2 network will shrink little, as a result the average pore size will decrease, but the specific surface area has no obvious change
結果發現：二氧化硅膠體顆粒均勻分佈於脲醛聚合物網路中，煅燒去除有機模板后微球表面變粗糙，而粒徑沒有明顯變化； ph值較小時，復合微球中聚合物含量較大，而ph值較大時，得到復合微球結構鬆散，因此熱處理后的二氧化硅微球孔容及平均孔徑都較大，而在ph = 0 . 8時，得到最小值；武漢理工大學碩士學位論文隨著熱處理溫度的變化，小於160時，空分佈較窄，而比表面積較小，在350時，由於有機模板的去除，微球孔結構發生突變，比表面積明顯增大，而孔徑分佈變寬，溫度繼續升高時，二氧化硅網路發生收縮，平均孔徑變小而比表面積由於有機炭化物的完全去除沒有太大變化;微球中的微孔在熱處理過程中處于平衡狀態，分佈沒有太大變化。It was found that before the plating, there is section time to gestating, that we call the " gestating time " and the plating was ended spontaneously after some time, named " plating time ". the analysis of the solution after plating indicated that the too much decrease of ph value results in the reaction to be stopped. the plating time was shortened when the ph and the temperature of the bath were increased
結果表明，鍍液ph浙江大學碩士學位論文范啟義2003年3月摘要值、施鍍溫度提高，由於反應的速度加快，使反應時間縮短；硫酸銅濃度提高，有助於加快反應速度，從而縮短反應時間； edta濃度提高，使鍍液穩定性升高，對反應時間的影響等效于硫酸銅濃度的降低；而甲醛濃度提高，雖然反應的速度加快，但由於可用於還原的量增加，因此反應時間增加；裝載量提高，因能鍍覆的表面積增加，使反應時間縮短。Abstract : through copolycondensation method, a phenol - melamine - urea - formaldehyde resin was prepared. the discussion was concentrated on the preparation method of the resin and it ' s application condition in pressing exterior - type medium density fiberboard
文摘:通過共縮聚的方法，制備了具有良好的耐水性能和膠合性能的苯酚-三聚氰胺-尿素-甲醛樹脂。著重討論了該樹脂的制備方法以及在壓制室外型中密度纖維板中的應用情況。In the course of oxidation, reaction temperature should rise step by step, and in the late stage, reduced pressure distillation should follow so that the concertration of glyoxalic acid can rise and production rate of allantoin can rise up to 40 %
在氧化反應的過程中逐步地提高反應溫度，反應後期進行減壓濃縮，提高了乙醛酸的濃度，縮短了氧化時間，並使尿囊素產率達到40 % 。The results showed that the properties and production mst of the panel could be designed by adjusting the compression ratio of the mat ; the properties of bamboobased waferboard with 1. 07 compression ratio and 4 % pf resin without any moisture - resistant agent were superior to those of wood - based one ; and the composite with excellent properties could be made with bamboo from species either for structure or for shoot, and from single species or mixed species as long as the wall thickness of bamboo was over 2 mm
試驗結果表明，通過調節壓縮比即可調節板材的性能和生產成本，壓縮比為1 . 0 、用膠量為4的不含防水劑的酚醛樹脂竹大片刨花板的各項性能可超過同類木質板材的性能單獨或混合以具必要竹壁厚度的材用或筍材兩用竹為原料均可獲得性能良好的竹大片刨花板。The macromolecule paint freee boards are compounding material, which is a new type decorative material, no formaldehyde content, surface smooth and beauty, restraining combustion elegance color, handle comfort, paint free, burn blocking, innoxiously, prevent mildew and damp, no volatile odor, fine surface hardness, anti - impact, sound insulation, shockproof, no shrinking and crazing
高分子免漆板屬高分子免漆復合材料，綠色環保，材料不含甲醛，外表光滑、表面美觀、色彩高雅、手感舒適；免油漆、無毒、防霉、防潮、阻燃、無揮發性的氣味，表面硬度好、耐沖擊、隔音、防震、不收縮不開裂，耐久性好，可曲線成型，是一種新型裝飾材料。分享友人