
n. 聚丙烯
Fe-ion crosslinking PAA (polyacrylic acid) resin particles have been synthesized and analyzed.
合成并分析鉴定了铁离子交联的聚*********树脂颗粒。
UV Curing copper or silver plating copper conductive adhesive was prepared by using acrylated epoxy resin or polyacrylic resin.
以环氧*********树脂和聚*********树脂,铜粉和镀银铜粉制备了四种不同品种的紫外光固化导电胶。
The method of preparation of water-based functional construction sealant using polyacrylic ester LIPN emulsion as basic material was presented in this paper.
介绍了以聚*********酯互穿网络聚合物乳液(LIPN)为基料,配以填料制备水基建筑密封胶的方法。
Due to their virtues, polyacrylic series functional polymer microspheres have been widely used in various areas.
聚*********系微球在分离、催化及生物医学等领域具有广泛的应用。
Acrylic dispersion was prepared by adding water into polyacrylic solution which was carried out in the present of propylene glycol monomethyl ether acetate using di-tert-butyl peroxide as initiator.
以*********二叔丁基为引发剂,*********甲醚醋酸酯为溶剂,进行了*********酯溶液共聚合后,用水稀释得到*********树脂分散体。
The static conducting slurry was then compounded with polyacrylic emulsion for coating preparation and static conducting performance of the film was investigated.
并将导静电浆料与聚*********酯类乳液复合配制涂料,考察涂膜的导静电性能。
A high water absorption polyacrylic acid resin was obtained using inverse suspension polymerization.
采用反相悬浮聚合法合成了聚*********高吸水性树脂。
A new synthesized polyacrylic acid size has been developed, and its property has been measured and compared with the same kind of size home and broad.
本文通过实验确定了新型*********浆料的合成工艺,并将合成浆料与国内外同类浆料进行了性能测试对比。
Syntheses of low - molecular weight polyacrylic acid sodium with water as solvent and APS - SHS as redox initiator are stu***d.
以水为溶剂,************-亚硫酸氢钠氧化还原引发体系,研究了低分子质量聚*********钠的合成。
This article deals with the synthesis and characterization of epoxy-polyacrylic ester IPN emulsion.
主要讨论环氧树脂-聚*********酯互穿网络乳液的合成及其表征。
There are mainly starch, PVA and polyacrylic size as sizing materials in textile warp sizing.
纺织经纱上浆中常用的浆料主要有淀粉、聚乙烯醇(PVA)和*********类浆料三大类。
A series of low molecular weight polyacrylic acid sodium solutions was synthesized by using inorganic phosphate as chain transfer agent on the basis of acrylic acid, sodium hydroxide and so on.
以*********、氢氧化钠等为原料,以无机*********为链转移剂合成了系列低分子质量聚*********钠分散剂。
It relates to pyrolysis gas Chromatography to evaluate polyacrylic rubber and some other copolymer or blends.
李文应用裂解色谱法对*********酯等物质的共聚物与共混物进行了鉴定。
The application of the technology of adding both polyacrylic fiber and lightly sintered magnesia in concrete played a remarkable role in crack control of concrete facing slabs.
聚丙烯纤维和轻烧氧化镁双掺技术的应用,在面板混凝土的防裂中发挥了明显的作用。
The derived polyacrylic acid (PAA)-PVA grafted fibres possess cation exchange characteristics.
制得的PAA-接枝维纶具阳离子交换特性。
The results shows that further treatment of superabsorbent composite products containing kaolin is easier than that of pure polyacrylic acid salt superabsorbent.
加入高岭土粉体的复合型高吸水性树脂用溶液法聚合,产物不易粘壁,后处理方面优于纯的交联聚*********盐树脂。
Polyacrylic acid contain only group–COO- and cannot well inhibit the deposition of calcium phosphate and stabilize zinc salt.
聚*********由于主要官能团为羧酸官能团,结构单一,使得在抑制磷酸钙垢、稳定锌盐等方面效果不显著。
Objective To evaluate the therapeutic efficacy of the domestic polyacrylic acid(PAA) gel for the treatment of dry eyes.
目的评价国产聚*********(PAA)凝胶治疗干眼症的临床疗效。
Aqueous polyacrylic size was synthesized by solution or emulsion polymerization, then, the resultant product was converted into the powdery size through sedimentation, drying, and crush break.
通过溶液聚合法、乳液聚合法合成了聚*********液体浆料,对所合成的聚*********液体浆料经沉降、烘干、粉碎制取了粉体聚*********浆料。
The invention adopts a nucleocapsid emulsion polymerization process to prepare a polyacrylic acid resin III material for medicine coating.
本发明采用核壳乳液聚合工艺,制备用于药物包衣的聚*********树脂III材料。
The polyacrylic acid nano-gel microspheres of the invention can be used as a carrier of a medicament, in particular the carrier of a protein medicament.
本发明的聚*********纳米凝胶微球,可以用作为药物的载体,特别是用作为蛋白质药物的载体。
Composite quasi solid polymer electrolyte(QSPE) membrane composed of cross-linked polyacrylic acid, polymethyl acrylate, KOH and H_2O was prepared by emulsification and soaking process.
用乳化浸渍的方法,由交联聚*********、聚丙烯酸甲酯、************和水制备了准固态复合聚合物电解质(QSPE)膜。
Various water-based aluminum-plastic compound plate coatings have been prepared by using of water-soluble polyacrylic resins and hexamethoxymethylmelamine resin as cross-linker.
以水性*********酯树脂为原料,以六*********三聚氰胺树脂作交联剂,配制了不同的水性铝塑复合板涂料。
The invention discloses coal water slurry additive of polyacrylic acid series. The general molecular formula is shown in the right formula.
本发明公开了聚*********系列水煤浆添加剂,其结构通式如右式。
The brightness and color strength and transparency of the pigment were improved by adding dispersant MF, NNO, polyacrylic acid and Red Oil, and a slightly change in hue was observed;
分散剂MF、扩散剂NNO、聚*********、红油使颜料的鲜艳度、着色力和透明度提高,色光有所变化;
Blend films have been prepared from a mixture of high molecular weight polyacrylic acid (PAA) and polyvinyl alcohol (PVA). The PAA/PVA blend films were crosslinked through heat treatment.
将高分子量聚*********(PAA)与聚乙烯醇(PVA)混合,制备成PAA/PVA混合膜并对其进行热处理。
A high oil-absorption resin of polyacrylic acid system with moderate crosslinking was synthesized by suspension polymerization.
采用悬浮聚合法合成************酸酯类高吸油树脂,研究了交联剂、引发剂用量对树脂性能的影响。
polyacrylic acid
[建]聚丙烯酸
polyacrylic resin
聚丙烯酸树脂
聚丙烯酸(Polyacrylic acid,简称PAA)是一种重要的合成水溶性高分子聚合物,化学式为 (C₃H₄O₂)ₙ。它由丙烯酸单体(CH₂=CHCOOH)通过加成聚合反应形成,主链为碳-碳结构,侧链带有大量羧基(-COOH)官能团。其基本结构单元可表示为:
$$ ce{[-CH2-CH-]_{nvphantom{}}} quad ce{underset{displaystyle C}{|}{O}} quad ce{underset{displaystyle |}{O}} quad ce{H} $$
核心特性与性质:
水溶性与电离特性
聚丙烯酸具有优异的水溶性。其侧链羧基在水中可电离产生氢离子(H⁺),形成带负电的聚阴离子链(-COO⁻),溶液呈酸性。这种电离行为使其具有pH响应性,溶液黏度、溶解性等会随pH值变化显著改变。
螯合与分散能力
羧基赋予其强大的螯合金属离子的能力,能与钙、镁等多价金属离子形成稳定络合物,有效阻止水垢生成。同时,其阴离子特性可吸附在颗粒表面产生静电斥力,阻止颗粒聚集沉降,广泛用作分散剂。
增稠与流变改性
高分子量的聚丙烯酸在水中能形成高黏度溶液,通过分子链的缠绕和水合作用实现增稠,常用于调节化妆品、涂料等产品的流变性能。
主要应用领域:
参考资料:
: American Chemical Society. "Scale Inhibition in Water Systems." Industrial & Engineering Chemistry Research.
: Elsevier. "Poly(acrylic acid) in Adhesives." Comprehensive Polymer Science, 2nd Supplement.
: Journal of Biomedical Materials Research. "Applications of Polyacrylic Acid in Medical Hydrogels."
Polyacrylic 是一个化学相关术语,具有以下两层主要含义:
如需进一步了解具体应用或词源,可参考化学词典或纺织行业标准。
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