聚乙烯基本 的英文怎麼說
中文拼音 [jùyǐxījīběn]
聚乙烯基本
英文
polyvinyl naphthalene-
The present work indicates the organic nf membranes and the inorganic nf membranes all have shortages, so develop composite nf membranes that have low cost, mechanically strong and thermally / chemically - resistant, easy to cleanout and good performances is a very important task. in this paper, the preparation of inorganic - organic composite nf membranes were presented. this composite comprise a porous sio2 / al2o3 support substrate, the pore diameters of which ranging from 10 to 15 nm, this inorganic support substrate having a polymer membrane which comprises an polyvinyl alcohol ( pva ) or polyamide ( pa ) densely deposited on at least one of the face surfaces thereof, the structural porosity of such pva and pa membrane ranging from 3 to 5 nm
本論文以開發無機?有機復合納濾膜為出發點,首先在al _ 2o _ 3多孔微濾膜上利用溶膠?凝膠法制備sio _ 2 al _ 2o _ 3無機復合超濾膜作為無機?有機復合納濾膜的基膜;選用聚乙烯醇和聚酰胺為表面功能層材料,分別探討了以羥基丁二酸和磺基水楊酸為混合交聯劑,採用浸塗法制備了聚乙烯醇sio _ 2 ? al _ 2o _ 3復合納濾膜;以均苯二甲酰氯、哌嗪和二胺為單體,採用界面聚合法制備了聚酰胺sio _ 2 ? al _ 2o _ 3復合納濾膜,並對影響膜性能的諸多因素進行系統研究。By examining the new generation condutive polymer material 3 , 4 ? polyethylene dioxythiophene ( pedt ), this paper investigated the edt monomer synthetic path and the optimum filming conditions of the compound pedt. based on this research, i also discussed the manufacturing processes and the related principles of the solid tantalum capacitors, when replacing the conventional inorganic material mno2 with the pedt as the negative pole
本文以新一代導電聚合物材料3 , 4 ?聚乙烯二氧噻吩( pedt )為研究對象,研究了edt單體合成路線及聚合物pedt的最佳成膜條件,並以此為基礎,討論了以導電聚合物有機材料pedt取代傳統的無機材料mno2作陰極的固體鉭電解電容器的制備工藝及相關機理。On the theory, the predictive function control method based on the state space is discussed and the simulation results validate the pfc method ' s advantages on robust and anti - jamming comparing with pid method by computer simulation. the application research includes the application of the software of predictive function control ( apc - pfc ) and the software of the multiple - variables predictive control ( apc - hiecori ). the former were applied in the temperature control chlorinating process and ph control in the process of zymolysis of penicillin, the latter were applied in the advanced control of reclaim equipment of lox in china petroleum & chemical corporation yangzi petrochemical co., ltd
本文主要從理論和應用兩方面對預測控制方法進行了研究,理論方面主要是從預測函數控制的基本原理出發,研究了一般情況下的基於狀態空間描述的預測函數控制策略,並通過計算機模擬驗證了pfc演算法比常規pid演算法具有更好的魯棒性和抗干擾性:在實際工業過程的應用上,又分為兩類演算法及軟體的應用,預測函數控制策略及apc - pfc軟體的應用主要以聚乙烯氯化過程的溫度控制和青霉素發酵過程的ph值控制為主,多變量預測控制演算法和apc - hiecon軟體的應用主要以揚子石化公司的液化氣回收裝置先進控制為主。The dual - bath coagulation method suggested by j. a. va n ' t hof could be used in membranes with high selectivity clearance rate of low - molecular weight substances and moderate water flux theoretically. therefore it may be applied in the field of hemofiltration. to improve and optimize the performance of the pes ultrafiltration membrane applied in the hf, here the flat membranes and hollow fiber ( hf ) membranes are made in certain conditions based on the dual - bath coagulation method where pes is used as the membrane material, dmso as solvent and pvp & peg as additives this paper includes five parts as follow : 1
為了改善和優化聚醚碸超濾膜(單浴法)在血液過濾實際應用中的性能,本論文以j . a . van ' thof等提出的雙凝固浴法為基礎,以聚醚碸( pes )為主要成膜材料,以二甲基亞碸為溶劑,並添加一定分子量的致孔劑( pvp ,聚乙烯吡咯烷酮)以及一定分子量的添加劑( peg ,聚乙二醇)按照一定配比在一定溫度下製成透明均一的鑄膜液,靜置脫泡后在一定的工藝條件下製成聚醚碸平板膜和中空纖維膜,然後通過測試膜的結構和性能來評估其用於血液過濾中的前景。We select polyethelyne as fundamental resin, natural scale graphite, expanded graphite by self - made, expanded graphite as conductive fillers to synthesize conductive composite through different techniques of compound mixing. the effects of the conductive composites of different conductive fillers and the different dosage of conductive fillers, different technology and the different dosage of compatibilizer ( mah grafted pe ) were studied respectively
本論文就是據于這種思考,選用聚乙烯為基體樹脂,天然鱗片石墨、膨脹石墨、膨化石墨為導電填料,通過選用不同的混合方法合成復合導電材料。研究了不同的導電填料及其用量、不同的工藝方法及相容劑的不同用量對復合體系性能的影響。Based on detecting old fuel gas pipe material, corrosion condition, soil corrodibility and corrosion mechanism, this dissertation posed coating protection method that polythene gummed tape preservation layer can be used to the old pipes and polythene interlayer preservation layer can be used to new pipes
本論文在細致考察了舊燃氣管道材質、腐蝕狀況、土壤腐蝕性和腐蝕機理的基礎上,提出對于舊管道採用膠帶防腐層,新管道宜採用聚乙烯「夾克」防腐層的塗層防護措施。For this purpose, 2, 5 - diaminobenzene sulphonic acid ( dabsa ) [ c6h3 ( nh2 ) 2so3h ] can be selected as one monomer of ip reaction. the other monomer can be trimesoyl chloride ( tmc ) [ c6h3 ( coc1 ) 3 ]. in order to introduce the cationic group into membrane, 4 - ( chloromethyl ) benzoyl chloride ( cmbc ) [ ch2c1c6h4 ( coc1 ) ] could be added into organic phase ( tmc ) and used for chemical modification after ip process based on the reaction between 4 - ( chloromethyl ) benzoyl chloride and trimethylamine ( tma )
為了引入陽離子交換基團,本文採用2 , 5 -二胺基苯磺酸作為界面聚合的無機相單體;為了引入陰離子交換基團,在均苯三甲酰氯有機相單體中加入一定量的4 -氯甲基苯酰氯,並考慮在無機相中加入適量的聚乙烯亞胺( pei )以增加其正荷電性。The approaches of enhancing the mechanical properties of ramie and flax composites were studied in this paper. the effects of surface pretreatment, fiber content, molding temperature and pressure as well as the effect of electron beam, microwave and ultrasonic wave on the mechanical properties of the composites were explored. the experimental results show that : 1
本文以苎麻、亞麻纖維為增強材料,線性低密度聚乙烯( lldpe )為基體,研製了兩種麻纖維層壓復合材料,研究了麻織物表面處理、纖維含量、成型溫度、成型壓力等對該復合材料力學性能的影響,得到了性能較為優異的麻纖維復合材料,探討了復合材料的增強機理。This dissertation focuses on how to develop a high performance damping mechanism based on multi - energy transitions, which is independent or little dependant with the viscoelasticity of polymer matrix. three sections are mainly included in this dissertation as follows : chlorinated polyethylene ( cpe ) / piezoelectric ceramic ( pzt ) / vapor grown carbon fiber ( vgcf ) composites ; cpe / 2, 2 ' - methylene - bis - ( 4 - methyl - 6 - cyclohexylphenol ) ( zkf ) / vgcf composites ; organic hybrids made from cpe and small molecules cpe / pzt / vgcf composites : the damping composites of multi - energy transitions mechanism were produced by mixing pzt and vgcf into cpe. in this system, the mechanical vibration energy that was transmitted to cpe was found to convert into joule ' s heat through conduction paths between vgcf in the polymer matrix, so the vibration fades away
本論文主要包括三個方面的研究內容: ?氯化聚乙烯( cpe ) /壓電陶瓷( pzt ) /氣相生長碳纖維( vgcf )復合材料; ? cpe /雙[ ( 2 -羥基- 3 -環己基- 5 -甲基) -苯基]甲烷( zkf ) / vgcf復合材料; ? cpe基有機小分子混雜型復合材料cpe / pzt / vgcf減振復合材料:利用壓電和導電填料填充高聚物基體,當復合材料受到機械振動時,通過高聚物基體將機械振動能傳遞到壓電陶瓷粒子上,利用壓電陶瓷的壓電效應,將機械能轉換成電能,則電流在導電粒子產生的迴路中流動,由於導電迴路具有一定的電阻,所以電能又轉變成熱能耗散掉,從而起到減振的目的。The dispersity and stability of the graphite aqueous suspensions was investigated with centrifugation, the violet visible spectrophotometer, the laser particle size analyzer and scanning electron microscopy ( sem ). the following aspects of the production technique were carefully studied : 1. the effects of surfactants, poly ( vinyl alcohol ) ( pva ), poly ( vinyl pyrrolidone ) ( pvp ), sodium alginate ( sa - na ) and poly ( sodium acrylate ) ( pa - na ) on the suspension stability of graphite were investigated
本研究的主要內容有以下三個方面: 1 、研究了陰離子表面活性劑、非離子表面活性劑、聚乙烯醇( pva ) 、聚乙烯基吡咯烷酮( pvp ) 、海藻酸鈉( sa - na ) 、聚丙烯酸鈉( pa - na )對石墨在水中分散性和穩定性的影響; 2 、研究了分散方法、分散介質、 ph值及羧甲基纖維素鈉( cmc )含量對石墨在水中分散性和穩定性的影響; 3 、研究了聚乙烯醇( pva ) 、聚乙烯基吡咯烷酮( pvp ) 、海藻酸鈉( sa - na ) 、聚丙烯酸鈉( pa - na )四種助分散劑與羧甲基纖維素鈉( cmc )復配對石墨在水中分散性和穩定性的影響。This machine laminates plastic film or kraft - paper on the surface of pp or pe woven fabric with the adhesive material at melting status, or laminates color - printed opp, cpp film to produce compounded bags
本機組適用於以聚丙烯聚乙烯編織布為基材,利用塗膜料在熔融狀態下的膠粘性而進行塗塑復合紙塑復合,或同彩印好的Plastics - poly phenylene ether moulding and extrusion materials - designation system and basis for specifications
塑料.聚乙烯聚酯模塑和擠制材料.命名系統和基本規范Those metallocene branched polyethylene exceed all others in basic properties with processing properties being close to the general polyethylene
開發的茂金屬支化聚乙烯基本性能優于通用聚乙烯,而加工性能接近通用聚乙烯。Metallocene branched polyethylenes prepared by oligomerization catalysts at different ratio vary in physical properties, and the ratio of cocatalyst to oligomerization catalyst of 8. 72 : 1 gives good physical properties and processing properties
以不同配比齊聚共聚催化劑聚合的茂金屬支化聚乙烯的基本物性不同,當共聚齊聚催化劑配比為8 . 72 : 1時,基本性能和加工性能較好。Basic properties of various polyethylene polymerized by metallocene catalysts and various branched polyethylene polymerized by oligomerization cocatalysts were researched, and the results show that metallocene branched polyethylene polymerized by oligomerization cocatalysts have high molecular weight, broad molecular weight distribution, and good tensile properties compared to metallocene - based polyethylenes prepared using mono - metallocene and bi - metallocene catalysts
摘要研究了不同茂金屬催化劑聚合的茂金屬聚乙烯及不同齊聚共聚催化劑聚合的茂金屬支化聚乙烯的基本性能,結果表明:以齊聚共聚催化劑體系的茂金屬支化聚乙烯比以單、雙茂金屬催化劑的茂金屬聚乙烯相對分子質量高、相對分子質量分佈寬,拉伸性能優良。The mechanism for optical storage in these materials has been attributed to a statistical reorientation of the azobenzene chromophors perpendicular to the polarization of the incident electric field of the pump laser beam. the photoinduced birefringence and holographic storage in methyl orange dyes ( mo ) doped polyvinyl alcohol ( pva ) films were reported firstly in this thesis. the relationship between the photoinduced birefringence and the dye content and pumping power was investigated by using the writing light of 532 nm ( double - frequency of nd : yag laser ) and the reading light of 632. 8 nm
本文研究了甲基橙( mo )偶氮苯染料摻雜聚乙烯醇( pva )薄膜的光致雙折射和全息光存儲特性,利用yag激光2倍頻( 532nm )作為寫入光, he ? ne激光( 632 . 8nm )作為讀出光,研究含有不同染料濃度pva薄膜的光致雙折射特性,探討了光致雙折射和泵浦光功率的關系,實現了全息光存儲,所得光柵生長曲線包含快過程和慢過程,快過程以異構相位光柵的生長為主,慢過程以取向光柵的生長為主,對此實驗結果本文給出了合理的理論解釋。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 ) 。The followings are carried out for ballistic composite with resin matrix to realize its double function of loading and bulletproof and meet various tactics technology demands in the paper 1. the resin and reinforcement for arms ballistic system are selected and ballistic properties for composites with different resin matrixs ( improved phenolic, polyethylene, rubber, bi - phenol - a, and biamaleimide ) and different fibers ( kevlar, glass, carbon and uhmwpe fiber ) are investigated, with the aim of maxwell model to explain the matrix match principle for ballistic composites
1 、本論文從材料選擇入手,進行了復合裝甲防彈體系用樹脂、增強材料進行了選擇和研究,考核了不同樹脂類型(改性酚醛、聚乙烯、橡膠、雙酚a環氧和雙馬來酰亞胺體系) 、不同纖維( kevlar纖維、玻璃纖維、碳纖維、高強聚乙烯纖維)復合材料的防彈性能,並引入maxwell模型較好地解釋防彈復合材料的基體匹配原理。Plastics - ultra - high - molecular - weight polyethylene pe - uhmw moulding and extrusion materials - designation system and basis for specifications
塑料.超高分子量聚乙烯模塑和擠塑材料.名稱與符號系統和基本規范This paper describes the new production and properties of ductile fiber reinforced cementitious composites ( dfrccs ). this particular dfrcc contains polyvinyl alcohol ( pva ) fibers, employing low fiber volume fractions ( between 1 % and 2 % ) and high - strength and high elasticity modulus
本文採用低摻量(纖維體積率為1 2 )的高強高彈聚乙烯醇纖維(簡稱pva纖維)進行了延性纖維增強水泥基材料( dfrccs )的研製與性能測定。分享友人