接枝

基本解释 (translations)

graft  ·  grafted  ·  inarch  ·  ingraft  ·  imping  ·  grafts  ·  inarched  ·  ingrafted  ·  ingrafting

词组短语

stem grafting

与接枝相关的网络例句 [注：此内容来源于网络，仅供参考]

The effects of different factors on the laser-induced graft polymerization on the PET surface were analyzed, and the mechanisms were discussed. The factors were: 1 Monomers with smaller molecules resulted in better modification than polymeric monomers. Acrylamide monomer was chosen as hydrophilic modifier finally; 2 Higher concentration of the monomer solution favored the graft reaction; 3 With the increasing laser fluence, the surface hydrophilicity of PET films increased at first, then decreased. More laser pulses led to a more hydrophilic surface; 4 Benzophenone as a photosensitizer hindered the graft polymerization; 5 The homopolymer retardant of ammonium iron sulfate hexahydrate in a proper concentration retarded the formation of homopolymers and promotes the graft copolymerization; 6 The solvent of monomer solution also affected the graft reaction. Different solvents functioned in different ways. Ethanol can promote the graft reaction because of the activity of hydrogen in its structure; 7 pH value of the monomer solution affects the polymerization rate, and a lower pH value was favorable to the graft reaction.

这些影响因素的作用分别为：1小分子单体的表面改性效果好，确定以丙烯酰胺为亲水性改性单体；2较高的单体溶液浓度有利于接枝反应；3激光能量密度增大，薄膜表面亲水性先显著增强，后又减弱；激光脉冲次数越多，改性后表面亲水性越强；4光敏剂BP对PET表面接枝聚合反应有阻碍作用；5适当浓度的均聚物抑制剂六水合硫酸铁铵能减少单体均聚物的生成，促进接枝聚合；6单体溶液的溶剂也影响接枝聚合的反应进程，不同溶剂的影响作用原理不同，含较活泼氢的乙醇能促进接枝反应；7溶液pH值影响单体聚合速率，pH值较低有利于接枝反应。

Finally, the grafting polymerization of textile materials initiated by microwave low temperature plasma was conducted. Knitted cotton fabric was grafted by AMPS first, then knitted cotton and terylene/cotton fabrics were grafted with AMPS/NIPA dualistic monomers respectively. By means of grafting polymerization, the P dualisticintelligent hydrogel was added to textile.The influences of the factors on add-on, such as treatment time and power of plasma, concentrations of crosslinking agent and total monomers, proportion of AMPS, polymerizing temperature and time etc, was studied fully. The optimal conditions of grafting polymerization initiated by microwave low temperature plasma were determined by orthogonal design, variance analysis and mathematical statistics method so as to analyze the main influencing factors. Then swelling/deswelling kinetics, temperature-sensitivity and pH-sensitivity of grafted textile were studied. The performance indexes of hydrostatic pressure, moisture permeability and bursting strength of the knitted cotton and terylene/cotton fabrics before and after grafting were compared and evaluated synthetically.

此后用微波低温等离子体引发纺织材料的接枝聚合反应，分别研究了棉针织物接枝AMPS和棉、涤棉混纺针织物接枝AMPS/NIPA二元单体，使智能凝胶以接枝的方式添加到纺织材料上；详细探讨了微波低温等离子体处理功率和时间、总单体浓度、AMPS单体浓度、交联剂浓度及聚合反应温度和时间等因素对增重率的影响，通过正交设计、方差分析及数理统计对各影响因子进行分析，确定了微波低温等离子体引发接枝聚合的最佳工艺条件；对接枝纺织材料的失水-吸水动力学、温度敏感性、pH敏感性等进行了研究；对接枝前后棉、涤棉混纺针织物的静水压、透湿性和顶破强力等服用性能指标进行了对比和综合评价。

The conditions to produce PP-g-PVOH with the highest SP 60% were: ethyl alcohol/butyl alcohol=30/70, NaOH%=0.5%, refluxing at 90℃ for 16hr.FTIR confirmed graft and saponification reactions, and it was identified that graft reaction influence porosity and morphology very little, but microparticles in PP granule were sightly swelled. There was a peak relationship between melt flowing index and GP and the flowing property was decreased with sponification reactions.

红外光谱证实了接枝和醇解反应的发生；孔隙率和PP粒子内部形貌观察的结果表明，接枝反应对粒子孔隙率的影响不大，但其内部微粒有所溶胀；接枝率增大，熔融指数呈现先上升后下降的趋势，对材料力学性能的研究表明，随PP-g-PVAc接枝率的增加，材料的断裂伸长率和拉伸强度先增加后降低，拉伸模量逐渐增加，材料的缺口冲击强度降低。

The Surface composition of grafted PET fiber was characterized by ATR-FTIR. THE results showed that there were no obvious differences between ungrafted and graft PET fiber in the spectra ,except that the typical peak of-OH in 3100cm~(-1) appeared in both Citric acid treated PET fiber and Acrylic acid treated PET fiber indicated citric acid and acrylic acid had been successfully grafted on the surface of PET fiber.

对样品的接枝效果进行红外光谱表征，发现无论是经过丙烯酸接枝处理，还是柠檬酸接枝处理，处理前后纤维的红外吸收光谱图都没有明显的区别，说明接枝前后纤维的主体性质没变，但是，二者在3100cm~(-1)处都出现了羟基的特征吸收峰，说明柠檬酸和丙烯酸都已经接枝上了PET纤维表面。

When the concentration of MAH is higher than that of St, some MAH monomer reacts with St to form SMA, others can directly grafts onto PP macroradicals. When the amount of St added is higher than that of MAH, part of St monomer may preferentially react with PP macroradicals to form more stable styryl macroradicals, while others copolymerize with MAH, yielding SMA. MFR of the grafted PP is lower in this case. It is considered that MFR of the grafted PP is decided by concentration of free monomers, or, number of grafting reactive species. FTIR analysis confirmed the above mechanism.

当MAH单体用量多于St单体时，一部分MAH单体与St反应生成SMA，另一部分可直接与PP大分子自由基进行接枝反应；当St单体用量多于MAH单体时，除与MAH反应生成SMA之外的St单体可先与PP大分子自由基反应，并起到稳定PP自由基的作用，这时接枝物的MFR较小，亦即接枝物的MFR与体系中可进行接枝反应的活性种数目有关。

The viscosity of graft polymers with different graftrate was measured in toluene solution,it showed thatwith increasing of graft rate the intrinsic viscositiesdecreased,but the Huggin's coefficient increases forPBD-g-FA and remains practically constant for NR-g-FA.

不同接枝率的接枝物在甲苯溶液中的粘度测定结果表明：随着接枝率的提高，溶液的特性粘度下降；对于PBD-g-FA来说，其哈金斯常数随接枝率提高而增大；对于NR-g-FA来说，随着接枝率升高，其哈金斯常数则基本上保持不变化。

The influence of MAH、 AA、 MAA、 AM and GMA on hydrophilicity of PP product surface was studied by reaction extrusion process in the twin screw extruder, where 1,1-bis (tert-butyl peroxy)-3,3,5-trimethylcyclohexane (LQCH335) as the initiator, and St as the graft co-monomer.

通过在双螺杆挤出机中熔融接枝改性PP，研究了以1，1-二叔丁基过氧化－3，3，5-三甲基环己烷(LQCH335)为引发剂，MAH、AA、MAA、AM和GMA为接枝单体，St为接枝共单体的多单体熔融接枝体系对PP制品表面可涂敷性能的影响，并利用静态水接触角进行表征。

The graft polymerization of acrylonitrile on Crosslinked polyvinyl alcohol microspheres CPVA microspheres was performed by using cerium ammonium sulfate as initiator, and grafted microspheres CPVA-g-PAN were prepared. Subsequently, the grafted PAN was converted into poly via amidoximation reaction with hydroxylamine hydrochloride as reagent, resulting in the functional microspheres CPVA-g-PAO. The chemical structure and physicochemistry characters were adequately characterized with infrared spectrum, scanning electron microscope and determining Zeta potential. The effects of main factors on the amidoximation transform reaction of the grafted PAN were researched with emphasis, and the adsorption property of the functional microspheres CPVA-g-PAO for some biomolecules was examined preliminarily with uric acid as a model biomolecule.

以硫酸铈铵为引发剂，实施了丙烯腈在交联聚乙烯醇微球表面的接枝聚合，制备了接枝微球CPVA-g-PAN，然后以盐酸羟胺为试剂，通过偕胺肟化转变，将接枝的PAN转变为聚偕胺肟，制得了接枝有聚偕胺肟的功能微球CPVA-g-PAO，采用红外光谱法、扫描电子显微镜及Zeta电位测定等法，对功能微球CPVA-g-PAO的化学结构及物理化学特性进行了表征，重点考察了各主要因素对接枝PAN的偕胺肟化转变反应的影响，也以脲酸为模型分子，初探了功能微球CPVA-g-PAO对生物分子的吸附性能。

After the graft reaction of ungelatinized starch, the morphology of the copolymers kept the aggregate structure of starch, and vinyl copolymer is grafted on its surface; while the gelatinized starch forms homogeneous polymer which is totally different with ungelatinized products.

结果表明，合成的淀粉接枝共聚物符合预期结构，未糊化的淀粉接枝后，聚合物保持团粒结构，表面接枝上了乙烯基均聚物；糊化的淀粉接枝后，形成了均匀的淀粉接枝共聚物。

Two series of polyurethane acrylate grafted acrylic resins (Acr-g-TPU-PETA and Acr-gPPU-PETA) self-emulsifying systems are obtained by grafting -NCO group modified polyurethane acrylates with acrylic copolymer prepared from n-butyl acrylate, styrene,βhydroxyethyl methacrylate and acrylic acid The self-emulsifying systems showed Newtonian fluidity with viscosity closed to that of water, the solid contents were around 30% The T〓 of 15～4℃ for dried film before photocuring favored film formation at room temperature DSC and DMA results showed that PU-PETA is compatible with acrylic resin in the grafted resin The TG and dTG curves for Acr-g-PU-PETA samples were substantially different from the corresponding blends, and the brodened dTG peaks for photocured grafted resin suggest that there might be multiple interactions among chain segments The photocued film of the grafted resins self-emulsifying system exhibited good overall properties with polyurethane acrylate grafts ranging from 30% to 50%, and Acr-g-TPU-PETA series showed better properties than Acr-gPPU-PETA series The adhesion of the photocured film was 1～2 grade, impact strength was 50kg-cm and flexibility was 1mm The Shore hardness and the adhesion of the film decreased markedly if PETA was replaced by HEMA as photoactive group due to the lower C=C double bond content in the grafted resin The polyhydroxy amine-linked thioxanthones photoinitiators can be evenly dispersed in self-emulsifying system without color spot appearing in the dried film The films photocured with IV〓～IV〓 generally exhibited higher Shore hardness, gloss and solventresistance than that cured with Irgacure 2959 and did not induce the rusting of the iron substrate Pigmenting with titanium oxide had no effect on the photocuring The polyhydroxy amine-linked thioxanthone IV〓 and IV〓 can be new candidates for the formulation of titanium oxide pigmented photocurable water-borne coatings for their pale-yellow appearance and slight interference with the color of the coatings WB 4759 with high water-solubility coalesced and separated from the dried resin film, and even induced the rusting of iron substrate.

以丙烯酸丁酯，甲基丙烯酸-β-羟乙酯，丙烯酸及苯乙烯合成厂丙烯酸共聚树脂，并与含-NCO端基的聚氨酯丙烯酸酯接枝反应，经水性化后，得到两个系列（Acr-g-TPU-PETA和Acr-g-PPU-PETA）各5个不同配比的丙烯酸树脂接枝聚氨酯丙烯酸酯自乳化体系，粘度与水相近，为牛顿流体，固含量30％左右。光固化前干燥涂膜的玻璃化转变温度在-15℃～4℃之间，有利于室温下成膜。DSC及DMA谱表明两种树脂基本相容。Acr-g-PU-PETA的热失重行为明显不同于共混材料，接枝样dTG峰明显宽化，表明接枝样中链段之间的相互作刚有多重性，丙烯酸树脂与聚氨酯之间有一定的相容性。接枝树脂自乳化体系光固化涂层的综合性能以聚氨酯丙烯酸酯成分为50％～30％者相对较好，且以Acr-g-TPU-PETA系列更理想。光固化膜的附着力为1～2级，冲击强度为50kg·cm，柔软性多为1mm。以HEMA代替PETA作为接枝树脂的活性基团，碳—碳双键密度太低，光固化膜交联点太少，硬度和附着力均较差。多羟基胺连硫杂蒽酮光引发剂能均匀分散于树脂自乳化体系和接枝树脂干膜中，不出现色斑，光固化膜肖氏硬度一般高于以Irgacure 2959为光引发剂的光固化膜，光泽度及耐丁酮溶剂性能均有所提高，不会诱导铁基生锈，钛白着色对光固化结果几乎没有影响。本论文所合成的多羟基胺连硫杂蒽酮光引发剂IV〓与IV〓为浅黄色，对光固化涂层的颜色干扰较小，为配制钛白着色光固化水性涂料提供了新的光引发剂。水溶性太强的WB 4759在干膜中易聚结析出，且对所附着的铁基有诱导锈蚀作用。

与接枝相关的网络解释 [注：此内容来源于网络，仅供参考]

graft copolymerization：接枝共聚合

接枝共聚物 graft copolymer | 接枝共聚合 graft copolymerization | 接枝聚合 graft polymerization

graft copolymerization：接枝(共)聚合(反应)

graft copolymer 接枝聚合物,融聚物 | graft copolymerization 接枝(共)聚合(反应) | graft polymer 接枝聚合物

grafting copolymerization：接枝共聚

骨:bone | 接枝共聚:grafting copolymerization | 接枝聚合:Grafting polymerization

grafting copolymerization：接枝共聚合

嫁接优势:grafting superiority | 接枝共聚合:Grafting Copolymerization | 熔融接枝:melt grafting

graft polymerization：接枝聚合

接枝共聚合 graft copolymerization | 接枝聚合 graft polymerization | 格雷木擴散定律 Graham's diffusion law

grafted fibre：接枝纤维

grafted CR adhesive 接枝氯丁胶 | grafted fibre 接枝纤维 | grafted gelatin 接枝明胶

grafted gelatin：接枝明胶

grafted fibre 接枝纤维 | grafted gelatin 接枝明胶 | grafted rayon 接枝人造丝

inarch：接枝/插枝

inaptness /不适当/不合宜/不相配/ | inarch /接枝/插枝/ | inarching /靠接/

engrafted river：接枝河;接流河

接收器 receptor | 接枝河;接流河 engrafted river | 接枝河;接流河 ingrafted stream

ingrafted stream：接枝河;接流河

接枝河;接流河 engrafted river | 接枝河;接流河 ingrafted stream | 阶 stage