水熱外延 的英文怎麼說
中文拼音 [shuǐrèwàiyán]
水熱外延
英文
hydrothermal epitaxy-
In this thesis, the development of emulsion polymerization theory and related new technologies are comprehensively reviewed, and the synthetic technologies of acrylate latex modified by organosilicon both at home and abroad are also reviewed. based on the current development and research in this field, attentions of this study are focused on three ways for preparing novel acrylate latexes modified by organosilicons, that is, 1 ) the acrylate monomers are copolymerized with unsaturated silicons by emulsion copolymerization ; 2 ) a new latex with microphase separation morphology is synthesized, which shows a core - shell structure character ; 3 ) soap - free polymerization is explored for preparing a higher - performance latex using an unsaturated silicon monomer, different acrylates and a reactive emulsifier. by using techniques of delaying addition of organosilicon monomer and a hydrolysis inhibitor, the hydrolysis and condensation of 3 - ( trimethoxysilyl ) propyl methacrylate during polymerization can be effectively prevented, as a result, organosilicon content in the macromolecular chain is increased
同時採用有機硅單體延遲滴加及添加水解抑制劑等技術，有效防止了-甲基丙烯酰氧基丙基三甲氧基硅烷在乳液聚合過程中的過渡水解及縮合反應，提高了聚合物大分子鏈中有機硅鏈節的含量；利用紅外光譜與差示掃描量熱儀對產物分子結構進行了表徵，並通過對共聚產物力學和吸水率的測試，證實了本研究所制備的有機硅改性丙烯酸酯共聚物具有比純丙烯酸酯聚合物更優良的力學及耐水性能；從分子設計角度出發，利用醇解反應合成出水解、縮合反應速率較慢的兩種新型不飽和有機硅單體： ?甲基丙烯酰氧基丙基三乙氧基硅烷和?甲基丙烯酰氧基丙基三異丙氧基硅烷；利用核磁共振對新型硅烷單體結構進行了證實；研究表明利用新型硅烷單體可以制備出高硅烷含量的有機硅改性丙烯酸酯乳液，且其聚合產物具有較高的力學及耐水性能。Water is also used as a coolant for rolling - mill roll to maintain their contour and lengthen their service life
熱軋機的軋輥也需用冷卻水來保持軋輥的外形和延長它的使用壽命。It has big surface loaded and can heat the water medium quickly to meet the washing request. adopt inside fuser and outside water temperature sensor to make the heater securely. the surface of the heater with special bright treatment can reduce the adhesive force of the calcium ion and further reduce to produce the scale and prolong the life
本加熱器是洗衣機中加熱水用，其表面負荷較大，體積小，能使水介質快速加熱，以滿足洗滌要求。加熱管採用內置熔斷器及外裝水溫傳感器，增強加熱器使用的安全性，加熱管表面經特殊的光亮處理，使鈣離子的附著力減小，從而減少水垢的產生，延長使用壽命。When the proportion of polymer and cement is high, the continuous phase is made up of polymer, the inorganic particles are dispersed in the polymer phrase, so the films have good extensional performance and low temperature flexibility ; when its proportion is low, the hydrated cement forms the local rigid gel network, so extensional performance and low temperature flexibility of films reduce obviously, but the resistance to water, ultraviolet and thermal ageing of films is improved
高聚灰比時，聚合物構成了連續相，水泥等以粒狀分散在聚合物中，塗膜具有優良的延伸性和低溫柔性；低聚灰比時，水泥水化形成了剛性的局部凝膠網路，使塗膜的延伸性和低溫柔性都顯著降低，但可提高塗膜的耐水、耐紫外老化和耐熱老化能力。分享友人