Polyurethane ( pu ) pouring sealant was synthesized with polymer h and modified isocyanate k as basic materials 摘要選用聚合物h和改性異氰酸酯k為主要原料合成聚氨酯灌封膠。
It ' s generally made from ethyl vinyl acetate ( eva ) foam or polyurethane ( pu ) and in many cases is supplemented by air or gel inserts 它們通常由乙烯基醋酸乙脂( eva )泡沫或聚氨酯( pu )材料制成,很多情況還填充了空氣或膠體。
The effects of both the concentration of the polyurethane ( pu ) solution and the modulus of pu on the microstructure and physical properties of the pu film were investigated 摘要探討溶劑型聚氨酯的濃度和模量對(duì)聚氨酯成膜微結(jié)構(gòu)和物理性能的影響。
It is an excellent opportunity for us to derive a second stream of sustainable income , in addition to our existing polyurethane ( pu ) materials business line . 此實(shí)為一次難能可貴的機(jī)會(huì),讓集團(tuán)在現(xiàn)有聚氨酯物料業(yè)務(wù)之外,建立另一穩(wěn)定的收入來源。
Polyurethane ( pu ) elastomer has been widely applied because of its fine comprehensive properties . but its heat resistance properties and solvent resistance properties do n ' t very well , which limit its application in a certain 聚氨酯彈性體由于綜合性能出眾而被廣泛應(yīng)用,但由于其耐熱、耐極性溶劑性能不好,所以其應(yīng)用還是受到一定程度的限制。
The experimental results were showed that polyurethane ( pu ) coating and tar - epoxy ( ep ) coating had excellent anti - corrosive and physics - mechanical property , and both two paints were suitable to protect the concrete sewage pipe 測(cè)試結(jié)果表明,聚氨酯類型和焦油環(huán)氧類型的涂料具有優(yōu)異的耐腐蝕性能和物理機(jī)械性能,適合作為合流污水環(huán)境中混凝土管道的保護(hù)涂層。
In this paper , the structure and properties of polyurethane ( pu ) - sio2 , polyethersulfone ( pes ) - sio2 composite membrane . including composite flat membrane and composite hollow fiber membrane , and responsivity of composite pu hollow fiber membrane pore size to pressure were studied 本文對(duì)sio _ 2填充聚氨酯( pu ) 、聚醚砜( pes )復(fù)合膜,包括平板膜和中空纖維膜的結(jié)構(gòu)和性能及pu復(fù)合中空纖維膜的壓力響應(yīng)性進(jìn)行了研究。
The polyurethane ( pu ) membranes modified with silk fibroin ( sf ) , made from sf protein and liquid prepolymer with terminal - isocyanate groups , were obtained by the process of prepolymer having reaction on the surface of sf membranes and then controlling the moisture of system and the solution conditions 摘要以再生絲素蛋白和液狀端異氰酸酯基預(yù)聚物為原料,使預(yù)聚物在絲素膜界面發(fā)生化學(xué)反應(yīng),再通過控制相對(duì)濕度和溶解條件,制備了絲素改性聚氨酯膜。
To check the efficiency of the insulations , by varying the thickness , the width and the position of the insulations ( expandable polystyrene insulation layer ( eps ) ; polyurethane ( pu ) ) and the material of the roadbed surface in the calculation , the maximum thawed depths during the following 50 years on permafrost under the roadbed were simulated 為了檢驗(yàn)保溫材料的效果,計(jì)算時(shí)采用改變保溫材料聚苯乙烯板( eps )和聚胺脂板( pu )的厚度、寬度、埋設(shè)位置及路基表面條件,來模擬路基面下多年凍土季節(jié)最大融化深度在今后50年內(nèi)隨時(shí)間的變化。
The selling engineer of our company has comprehensive professional knowledge to the production processes of users , before you order , we can sieve the medium according to users ' sieve machine type , production capacity , discharge demand of supplies factor is it analyse demand of you to come , so you can choose the rubber or the polyurethane ( pu ) to sift the surface material , we can also determine the grain size of sieving and sift the hole form accurately , this means screen mesh material of the company of square garden can produce the good economic benefits and social benefit 我公司的銷售工程師對(duì)于用戶的生產(chǎn)過程具有綜合的專業(yè)知識(shí),在您定購(gòu)前,我們可以根據(jù)用戶的篩機(jī)類型,篩分介質(zhì),生產(chǎn)能力,排出物料的要求等因素來分析您的要求,因此您可以選擇橡膠或聚氨酯( pu )篩面材料,我們還可以精確測(cè)定篩分粒度和篩孔狀,這就意味著方園公司的篩網(wǎng)材料可產(chǎn)生良好的經(jīng)濟(jì)效益和社會(huì)效益。