查询词典 water borne

Preparation of water-borne polyurethane dispersion modified by epoxy resin;2. Preparation and Application of water-borne curing agent from cashew nut shell liquid;3. Synthesis and performance study of water-borne photosensitive PU acrylate PUA

以甲苯二异氰酸酯、聚丙二醇醚(PPG 2 2 0 )和二羟甲基丙酸为原料制备了阴离子型水性PU 乳液，研究了DMPA用量、n /n值、交联剂TMP用量对水性PU 乳液与涂膜性能的影响，得出了制备阴离子型水性PU 的最佳配

Therefore, disease in the population has become more common recently. In view of this, submicron Negative-Ion powders and excited materials were adopted in this research. The submicron NI powders and excited material powders were treated with a dispersing agent and a ball mill used first, then it was blended evenly into water-borne polyurethane by a planetary deaerate stirring machine, and finally the water-borne PU composite films were coated onto release paper with a coating rod. The main purpose of this work is to manufacture a permanent composite film which is able to release NIs. Such film is expected to not only release amounts of NI but also absorb smells and effectively create fresh air.

有鉴於此，本研究采用次微米负离子粉体及激发材，先添加分散剂后利用球磨机做处理，再将次微米负离子粉体与激发材添加至水性聚氨基甲酸酯中，经由行星式脱泡搅拌机均匀混合，再以湿式涂布法，经由涂布棒涂布於离型纸上，脱膜后成复合薄膜，制备出於空气中释放负离子、吸收异味且清洁空气之永久型复合薄膜。

Particle-size distribution proved that all the sediment was composed by two parts, a little water-borne sediment and mass wind-borne sediment.

粒度分析试验结果证实了研究区域以风成沉积为主、水成沉积为辅的沉积成因。

The incidences of 4 water-borne infectious diseases except bacteroidal diarrhea showed downtrends year after year in 10 past years.By relativity analyzing,there were negative correlations between overall incidences of 4 water-borne infectious diseases and the qualification rate of drinking water coliform group,between the incidence of hepatitis A and drinking water coliform, between the incidence of typhoid or paratyphoid and drinking water total plate countand between the incidence of typhoid or paratyphoid and drinking water coliform.

改水10年间四类主要介水传染病除菌痢以外均呈逐年下降趋势，经相关性分析，四类主要介水传染病的总发病率与饮用水大肠菌群、甲肝发病率与饮用水大肠菌群、伤寒副伤寒发病率分别与同期饮用水细菌总数和大肠菌群指标合格率变化之间呈负相关。

There were significant differences of the incidences of 4 water-borne infectious diseases(cholera,hepatitis A,bacteroidal diarrhea and typhoid or paratyphoid)between former 5 years and later 5 years.The incidences of 4 water-borne infectious diseases except bacteroidal diarrhea showed downtrends year after year in 10 past years.By relativity analyzing,there were negative correlations between overall incidences of 4 water-borne infectious diseases and the qualification rate of drinking water coliform group,between the incidence of hepatitis A and drinking water coliform, between the incidence of typhoid or paratyphoid and drinking water total plate countand between the incidence of typhoid or paratyphoid and drinking water coliform.

改水前后各五年霍乱、甲肝、菌痢、伤寒副伤寒等四类主要介水传染病总发病率的差异有显著性，四类主要介水传染病的总发病率与饮用水大肠菌群合格率之间、甲肝发病率与饮用水大肠菌群合格率之间、伤寒副伤寒发病率分别与同期饮用水细菌总数和大肠菌群指标合格率之(来源：A1eBC3737论文网www.abclunwen.com)间呈负相关。

Selecting water-borne styrene/acrylic anti-rust latex of soapless polymerization technology as binder,iron oxide red and aluminum triphosphate as anti-rust system and nano SiO_2 paste,we prepared water-borne nano-modified styrene/acrylic anti-rust primer,properties of which reached the level of solvent-borne alkyd antirust coatings.

本试验选用无皂聚合工艺制备的水性苯丙防锈乳液为基料，氧化铁红与三聚磷酸铝组成防锈体系，添加纳米SiO_2浆料，制备的水性纳米改性苯丙防锈底漆性能达到溶剂型醇酸防锈涂料的水平，并分析了乳液、防锈颜料、纳米SiO_2对水性苯丙防锈底漆性能的影响。

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。

Human pentastomidosis is a series of food-borne or water-borne parasitic zoonoses caused by pentastomid parasites.

人舌形虫病是由舌形虫引起的由食物传播或水传播的人兽共患寄生虫病。

Water-borne preservative ; Oil-borne preservative ; Double vacuum process ; Full-cell pocess

水溶性防腐剂；油溶性防腐剂；双真空处理；加压满细胞处理

Firstly, we should prepare polyester glycol in order to prepare water-borne polyurethane emulsion used to wooden furniture. Polyester glycols having designed molecular weight of 1000 are synthesized by ethylene glycol and mixture of phthalic anhydride and adipic acid (morl radio =40:60)on condition that molar excess content of glycol is 15%, and high vacuum time is 8h.The produced polyester glycols having the same molecular weight as designed measure up to standard of material. And Water-borne polyurethane emulsion's hardness is better than others are produced by aliphatic polyester glycol.

为了制得性能优越木器用水性聚氨酯乳液，首先我们从制备水性聚氨酯用的原料聚酯二元醇入手，我们设计了分子量为1000的聚酯二元醇，它使用邻苯二甲酸酐和己二酸以摩尔比40：60混合后再与乙二醇反应，反应时醇的摩尔过量15%，真空时间8小时，所得的聚酯二元醇，在此条件下酸值基本上能符合用作聚氨酯原料的要求，所测得的分子量也与设计的分子量非常接近，且用它来制得的水性聚氨酯乳液，其涂膜硬度，相对于单独用脂肪族聚酯二元醇制备的水性聚氨酯的要优。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。