熔體聚合 的英文怎麼說
中文拼音 [róngtǐjùgě]
熔體聚合
英文
melt polymerization-
According to this scenario, researchers could never find evidence of such early chondrules because all these objects would have been destroyed by the melting of the chondritic asteroids into which they accreted
在這個情形下,研究人員恐怕永遠也無法找到如此早期的球粒證據,因為所有這些物體在聚合的過程中,都會因為球粒隕石小行星熔化而被破壞。Plastics - determination of the transient extensional viscosity of polymer melts
塑料.聚合物熔體瞬態拉伸粘度的測定The analysis of ir spectrum and melt flow index showed that the composite had a micro - crosslinking structure, and the analysis of dsc discovered there was - spherulite in the aggregate structure of the composite of pp
紅外光譜分析和熔體質量流動速率的測定表明,復合材料體系產生了微交聯; dsc分析發現, pp材料的聚集態結構中含有球晶。Numerical simulations of polymer melt conveying in co - rotating twin screw extruder
同向旋轉雙螺桿擠出機聚合物熔體輸送的數值模擬Finite element simulation of melted polymer flow inside convergent flow slot
收斂流道內聚合物熔體流動的有限元模擬Time - temperature superposition principle could bee applied to g " dependence on cd, and the dependence of shifted factor at on temperature demonstrated a linear relationship by a plot of in at vs. t - 1. the steady rheological measurements for nanocomposites melts were conducted. the results revealed that the melts of exfoliated nanocomposites with lower loading of org - mmt exhibited shear - thinning even at lower shear rate as compared with polymers filled with common particles, while the melts flow depended weakl
研究結果表明仁復合體系g 『和動態損耗模量寧的對數關系性呀g 『一109夕, _印維乖溫動態模量滿足時溫疊加原理,頻率移動因子( at )的對數與塌度的倒攀即種馬與了一『有良好的線性關系?一_面,復合體系熔體的穩態剪切流變行為具有不同於普通粒子填充聚合性。Through the research of crosslinking of matrix resin, heating treatment of composite and mixing of different polymer, we draw some conclusions : 1 、 percolation theory can explain the phenomenon of the jump of resistance when the content of cb reach a critical volume ; 2 、 based on ohm conduct theory, abounded to the percolation the wbibull statistical theory and other theory, an adapted theory was obtained to explain the jump of resistance and the other phenomenon ; 3 、 the ntc phenomenon was eliminated by crosslinking the matrix of conductive composite, at the same time the stability of composite was improved
通過對基體樹脂的交聯、復合材料的熱處理、聚合物共混物的研究得出了如下的結論: 1 、滲濾理論能夠很好的解釋導電粒子含量達到某一值時電導率劇增的問題; 2 、在歐姆導電模型的基礎上,綜合應用了weibull統計理論模型,結合原來的體積膨脹等理論,成功的解釋了ptc復合材料在基體材料熔點附近的跳變問題、 ntc現象以及熱循環穩定性等問題; 3 、有機ptc導電復合材料經硅烷交聯以後能夠消除ntc現象,改善了導電復合材料的穩定性能。Non - isothermal comprehensive 3 - d simulation on polymer melt
聚合物熔體全三維非等溫數值模擬Numerical simulation of three dimensiona isothermal power - law polymer melt flow within an extrusion die with the quot; l quot; shaped cross section
型異型材擠出口模內聚合物熔體三維等溫冪律流動的數值模擬Numerical simulation and analysis of polymer melt filling flow driven by a periodically oscillating entrance pressure through the extrusion die with an irregular cross - section
振動場作用下聚合物熔體在異型材擠出口模內的充填流動分析Determination of the melt flow index of polypropylene and polypropylene compounds
聚丙烯和聚丙烯化合物熔體流動指數的測定Common test methods for insulating and sheathing materials of electric cables. part 4 : methods specific to polyethylene and polypropylene compounds. section one : resistance to environmental stress cracking - wrapping test after thermal ageing in air - measurement of the melt flow index - carbon black and or mineral filler content measurement in pe
電纜絕緣和護套材料通用試驗方法第4部分:聚乙烯和聚丙烯混合料專用試驗方法第1節:耐環境應力開裂試驗-空氣熱老化后的卷繞試驗-熔體指數測量方法-聚乙烯中碳黑和或礦物質填料含量的測量方法For the crystalline polymer matrix, the ptc transition temperature is close to the melting point, while for the amorphous polymer matrix, the ptc transition temperature is close to the glass transition temperature
Ptc轉變溫度與體積膨脹的轉變溫度非常一致,對于結晶聚合物基體體系, ptc轉變溫度在基體的熔點附近,而對于非晶聚合物基體體系, ptc轉變溫度在基體的玻璃化轉變溫度附近。Electrospinning origins from that electrically charged fluid is forced jets in the high voltage electrostatic field. electrospinning occurs when the electrical forces at the surface of a polymer solution or melt overcome the surface tension and cause an electrically charged jet to be ejected. when the jet dries or solidified, an electrically charged fiber remains
電紡絲技術是基於高壓靜電場下導電流體產生高速噴射的原理發展而來,其基本過程是:聚合物溶液或熔體在幾千至幾萬伏的高壓靜電場下克服表面張力而產生帶電噴射流,溶液或熔體射流在噴射過程中乾燥、固化,並保持一定電荷量,最終落在接收裝置上形成纖維氈或其它形狀的纖維結構物。Based on theory of gear driving, fluid mechanics, hydrodynamic lubrication, polymer rheology and single - screw extrusion, key structure design principles in melt pump are summarized, some theory foundations are also deduced
結合齒輪傳動、動力潤滑、流體力學、高聚物加工流變學以及單螺桿擠出理論的部分知識對熔體泵結構設計中的主要問題進行了總結,並對其中部分理論依據進行了推導。Flow of polymer melt in the single screw extruder under the action of vibration
振動作用下單螺桿擠出機內聚合物熔體的流動The result of dsc shows that the switch temperature of pu / cb / organic crystal composites is accord with the melting point of organic crystal and can be controlled by controlling the melting point of organic crystals
用dsc測試結果表明,聚氨酯炭黑有機晶體復合體系的ptc開關溫度與有機晶體的熔點基本一致,可以通過控制加入的有機晶體的熔點來控制復合體系的ptc開關溫度。Numerical simulation for dynamic melted polymer pipe flows in vibration field
振動場中圓管流道內聚合物熔體流動的數值模擬Two - step procedure is preferable to prepare high molecular weight poly ( olefin - ester ) s with a high polar monomer content and a high melting temperature
兩段聚合過程適于制備高分子量的烯烴共聚酯,聚合物收率達90 % ,極性單體的插入率大於10 % ,熔融溫度高達120 。In attempt to prepare and study the novel electrically conductive nanocomposites, with polyethylene ( pe ) served as the matrix, maleic anhydride grafted polyethylene ( gpe ) served as eg intercalates and expanded graphite ( eg ) served as a conductive filler, prepared gpe / eg, pe / gpe / eg electrically conductive composites via solution intercalation ( si ), direct melt mixing ( dmm ) and master batch melt mixing ( mmm ) methods. by means of testing conductivity and mechanical property, with the measures of tem, sem, om, xrd and dsc, studied the relationship between preparation method, material composition, and electrically conductive as well as mechanical property. the main outcomes never reported at home and abroad literature were obtained as follows : 1 the gpe / eg electrically conductive nanocomposites were prepared via si method
本論文以制備和研究新型高分子導電納米復合材料為目的,以聚乙烯( pe )為基體,馬來酸酐接枝聚乙烯( gpe )為插層劑,膨脹石墨( eg )為導電填料,採用溶液插層( si )法、直接熔體混合( dmm )法和兩者相結合的熔體母料混合( mmm )法制備了gpe eg 、 pe gpe eg導電復合材料,通過電導率和力學性能測試,運用tem 、 sem 、 om 、 xrd和dsc等手段,研究了制備方法、材料組成、形態結構和導電性能及力學性能之間的關系,得到以下未見國內外文獻報道的研究結果: 1採用si法成功制備了gpe eg導電納米復合材料,其導電逾滲閥值( _ c )為1 . 59vol ,遠低於dmm法制得gpe eg常規復合材料的_ c ( 3 . 13vol ) 。分享友人