納土納 的英文怎麼說

It was the first time that the nano - ceria and aqueous polyurethane was combined together, the microemulsion of aqueous polyurethane coating ceria nanoparticles was obtained and characterized. the results showed that the ceria is combined with polyurethane by electrostatic action, chemical bond and absorption media action

首次將稀土納米ceo2和水性聚氨酯復合，得到了包覆有ceo2納米粒子的水性聚氨酯微乳液，表徵結果表明， ceo2和聚氨酯通過靜電作用、化學鍵作用和吸附層媒介作用結合在一起的。

As to the high - density polyethylene, two strategies were performed : ( 1 ) after being modified by grafting polar groups on its backbone, polyethylene and organic montmorillonite were melt mixed directly, which could obtain the polyethylene / montmorillonite nanocomposites. the effect of groups grafted on the backbone on the efficiency of intercalation was investigated in this paper ; ( 2 ) choosing the grafters obtained in this experiment as the compatilizers, polyethylene / montmorillonite nanocomposites had also been prepared by melt mixing the polyethylene, grafter and organic montmorillonite. the difference of grafters and sequence of mixing on the intercalation result had also been analyzed

對于高密度聚乙烯，採用以下兩種思路進行： （ 1 ）對聚乙烯首先進行功能化改性，使聚乙烯分子鏈上接枝上不同的極性基團，將改性后的聚乙烯再同有機蒙脫土直接熔融復合，成功的制備了聚乙烯蒙脫土納米復合材料，並考察了接枝到聚乙烯主鏈上基團的不同對最終插層效果的影響； （ 2 ）選用制得的接枝物作為相容劑，將聚乙烯，接枝物，有機蒙脫土三者熔融復合，也可以得到聚乙烯蒙脫土納米復合材料，並對選用不同的接枝物作為相容劑以及復合順序對最終插層效果的影響加以分析。

Article 37 a foreign - capital enterprise shall, when obtaining the land certificate, pay its land use fee to the land administrative department in the place where the enterprise is located

第三十七條外資企業在領取土地證書時，應當向其所在地土地管理部門繳納土地使用費。

Advancement in study on polypropylene montmorillonite nanocomposites

蒙脫土納米復合材料研究進展

Pp / montmori 1loni te nanocompos1tes ( pcn ) were prepared in two steps. in the first step, mother materia1 was synthesi zed by in - - situ gmft - - fnterca1a tion method, and pcn was prepared by b1ending p1ai n pp and mother material on twin screw extruder in the second step

通過原位接枝插層法制備了pp蒙脫土納米復合增強母料，然後將pp與母料在雙螺桿上共混制得pp蒙脫土納米復合材料（ pcn ） 。

The results from x - ray diffraction demonstrated that pp / mmtome was a fully intercalated nanocomposite, pp / mmtom and pp / ommt were partly intercalated nanocomposites, but the intercalation effect of pp / mmtom nanocomposite was better ; the crystallization characteristics of pure pp and pp / mmt nanocomposites were investigated by dsc, waxd and pom. the result of these testing showed that mmt nano - layers acted as nucleating agents for the crystallization of pp, the addition of mmt had effect on the crystallization process, leading the increasing of crystallization temperature crystallization rate and crystallinity, but also the dimension of spherulite reduced. but the formation of pp crystal did n ' t change, the formation of pp crystal in three pp / mmt nanocomposites and pure pp were a - form on the whole ; influences of three sorts of mmt on mechanical properties of pp / mmt nanocomposites were studied, as a result, the addition of mmt comprehensively improved mechanical properties of pp : notched impact strength, tensile strength and flexural properties were all increasing, but the extent of increasing were n ' t large

通過xrd分析比較這三種pp mmt納米復合材料微觀結構得到， pp mmt _ （ ome ）屬于完全插層， pp mmt _ （ om ）與pp ommt的插層程度相近，但是pp mmt _ （ om ）相對較好；通過對純pp和三種pp mmt納米復合材料的結晶性能研究發現，蒙脫土納米片層對pp結晶產生明顯的異相成核作用，結晶能力增強，使pp的結晶溫度和結晶速率提高，結晶度增加，球晶晶粒細化，但是沒有改變pp的結晶形態，三種pp mmt納米復合材料的結晶形態都屬于晶；通過對pp mmt納米復合材料的力學性能測試得知，蒙脫土的加入全面提高了pp的力學性能，缺口沖擊強度、拉伸強度和彎曲性能都有一定程度的提高，浙江{ _業大學碩十學位論文摘要但是提高幅度都不是很大，不過ommt 、 mmtom和mmtc ） me三種蒙脫土對pp力學性能有著不同的改性作用，其中pp / mmtom最好， pp月邊mto崛次之， pp / ommt最低，這種情況主要是由蒙脫土對pp結晶性能的影響和蒙脫土的納米改性作用造成的。

The mechanical tests result showed that when the mmt content is 2 % and the compatilizer content is 15 %, the pmc has best mechanical property. the izod impact strength is 16. 45 kj / m2 and the tensile strength is 35. 77 mpa, increasing 280 % and 4. 3 %, compared with pure pp. the pom photo indicated that the o - mmt can reduce the scale of spherical crystal of pp

以am為插層劑得到的聚丙烯蒙脫土納米復合材料中，蒙脫土保持剝離狀態，但力學性能不理想，當土含量為0 . 5時，材料的沖擊強度為9 . 58kj m ~ 2 ，拉伸強度為25 . 5mpa 。

( 3 ) when the content of compatilizer were 15wt % 30wt % ( to high density polyethylene ), the intercalation high density polyethylene / bentonite nanocomposites were obtained. ( 4 ) the intercalation nanocomposites were obtained after bentonite compounded with low density polyethylene and liner low density polyethylene respectively

（ 3 ）當相容劑含量為15wt % 30wt % （對于高密度聚乙烯） ，能夠得到插層型高密度聚乙烯/膨潤土納米復合材料。 （ 4 ）低密度聚乙烯和線型低密度聚乙烯與膨潤土復合后也能夠分別獲得插層型納米復合材料。

This research regarded pp grafted mah as compatibilizer, took the method of masterbatch and use new technologies prepare into high relatively content masterbatch of ommt, finally, this kind of masterbatch and pp were mixing and melting together and pp / mmt nanocomposites were prepared through pairs of spiral pole, ( series pp - b ), meantime, pp / mmt nanocomposites without compatibilizer were compared to study ( series pp - a )

本研究以pp接枝馬來酸酐為相容劑，採取母粒法，運用新型工藝制備出蒙脫土含量較高的接枝母粒，然後將這種母粒與pp通過雙螺桿共混熔融擠出制備出pp蒙脫土納米復合材料（ pp - b系列） ，同時比較研究了不加相容劑的pp蒙脫土納米復合材料（ pp - a系列） 。

The intercalation mechanism of insitu emulsion polymerization has been proposed for the first time. then acr / montmorillonite nanocomposites blended with pvc, the tem and xrd indicated that the montmorillonite were dispersed with nanometer in pvc matrix. the flexural strength and flexure modulus of composites increased with the montmorillonite content, and the impact strength of composites a little increased

且隨著acr蒙脫土納米復合材料中蒙脫土用量的增加，雖然pvc acr蒙脫土納米復合材料的拉伸性能變化不大，但抗彎強度和彎曲模量明顯增大，而且其缺口沖擊強度也有一定幅度的增大，具有工業實用價值。

The ordered and micro - phase structures of the molecular of pu materials are decided directly by its synthesis technology, composition and other materials compounded with it, and they will influence the possessive properties of pu materials. in this paper, general studies on pu have been carried out by the methods of controlling the prepolymerize technology, taking off dissociative tdi from prepolymer through decompress boiling distilling technology, polymerized in - situ with nano - particles and interpenetrated with ps, the relationship between properties and structure of pu / omt, pu / sio2 nano - composites and pu / ps ipns were characterized by ftir, dmta, tem andtga

本文用控制預聚體反應中單體的摩爾比、減壓共沸蒸餾去除預聚體中游離tdi 、用納米填料參與聚氨酯原位復合和與聚苯乙烯進行互貫等方法，合成了聚氨酯蒙脫土納米復合材料、聚氨酯sio _ 2納米復合材料和兩步法合成的基於聚醚（ ppg ）和聚酯（ 3010 ）的聚氨酯苯乙烯互穿網路聚合物材料，研究了其性能；運用ftir 、 dmta 、 tem 、 tga等表徵手段，對復合材料的結構進行了研究。

When the amt concentration was below 3phr ( 3g amt / 100g epoxy resin ), the cte values of composites decreased from 0 to 20 % of that of pure epoxy, however, the light transmittancies in near ir region of composites were more than 80 % of that of the pristine epoxy, indicating that epoxy / amt exfoliated nanocomposites could be used as packaging materials for optoelectronic devices

對剝離型納米復合材料的熱膨脹系數進行了研究，隨著粘土含量的增加體系熱膨脹系數顯著下降，且仍保持較好的光學透明性。表明粘土納米復合是一種很好的制備高透光率和低膨脹系數的光電器件包裝用環氧樹脂基復合材料的方法。

Article 55 construction units that have obtained state - owned land by paid leasing can use the land only after paying the land use right leasing fees and other fees and expenses according to the standards and ways prescribed by the state council

第五十五條以出讓等有償使用方式取得國有土地使用權的建設單位，按照國務院規定的標準和辦法，繳納土地使用權出讓金等土地有償使用費和其他費用后，方可使用土地。

Article 43. the allocated right to the use of the land refers to the right to the use of the land which the land user acquires in accordance with the law, by various means, and without compensation

前款土地使用者應當依照《中華人民共和國城鎮土地使用稅暫行條例》的規定繳納土地使用稅。

However, the measurement of tga and dsc showed that the thermal stability of the nanocomposites had improved a lot and the crystal speed had also have a slight improvement

但是， tga和dsc分析結果顯示：聚乙烯蒙脫土納米復合材料相對于純聚乙烯來說，熱穩定性有較大幅度提高，同時，復合材料的結晶速度也稍有增加。

Xrd, transmission electron micrograph ( tem ) and polarized optical micrograph ( pom ) were used to measure the structure of nanocomposites, the nonisothermal crystallization kinetics of pp / pp - g - mah / org - mmt was studied by differential scanning calorimetry ( dsc ), and their mechanical properties were tested

採用熔融插層法制備了聚丙烯接枝物蒙脫土納米復合材料，通過xrd 、 tem 、 pom和dsc研究了納米復合材料的結構及結晶動力學，並測試其力學性能。

Polyethylene ( pe ) / pe - g - mah / org - mmt nanocomposites were prepared by melt intercalation. xrd, and transmission electron micrograph ( tem ) were used to measure the structure of nanocomposites, the nonisothermal crystallization kinetics of pp / pp - g - mah / org - mmt was studied by differential scanning calorimetry ( dsc ), and their mechanical properties were tested

採用熔融插層法制備了聚乙烯接枝物蒙脫土納米復合材料，通過xrd 、 tem和dsc研究了pe pe - g - mah org - mmt納米復合材料的結構及結晶動力學，並測試其力學性能。

Study on the optical properties of transparent epoxy / clay nanocomposites a new type transparent epoxy based nanocomposites has been prepared by the reaction of alkylammonium exchanged montmorillonite ( amt ) with diglycidyl ether of bisphenol a ( dgeba ) and triethylamine as the curing agent. the morphology of amt in the epoxy matrix was characterized with x - ray diffraction ( xrd ), scanning electron microscopy ( sem ) and transmission electron microscopy ( tem )

光學透明環氧樹脂粘土納米復合材料光學性能採用十八烷基伯胺鹽、十六烷基三甲基溴化胺處理na基蒙脫土製備出兩種不同的有機土，以三乙胺為固化劑，有機土與雙酚a型環氧樹脂熔融插層聚合后制備出剝離型和插層型兩種結構的環氧樹脂粘土納米復合材料。

Thermosetting resin / org - mmt nanocomposite, including exopy resin / org - mmt and phenolic resin / org - mmt, were prepared by in situ intercalation polymerization, and the intercalation and exfloliation behaviour of them were characterized by x - ray diffraction ( xrd ), dynamic mechanical thermal analysis ( dmta ), and different scanning calorimetry ( dsc )

採用原位插層聚合法通過澆模固化成型制備了熱固性樹脂蒙脫土納米復合材料，並用xrd ， dmta ， dsc等手段研究了熱固性樹脂與有機蒙脫土的插層與剝離行為，並對固化過程進行了理論預估。

Results of dsc and tga showed that thermal properties of psmn were better than ps. psmn was melt - mixed with resin mixture in which polypropylene was the main component and polypropylene - montmorillonite nanocomposites were prepared

將制備出的psmn母料與以聚丙烯（ pp ）為主體的樹脂基體進行熔融共混，制備出聚丙烯蒙脫土納米復合材料（ ppmn ） 。