
n. 聚丙烯
Fe-ion crosslinking PAA (polyacrylic acid) resin particles have been synthesized and analyzed.
合成并分析鑒定了鐵離子交聯的聚*********樹脂顆粒。
UV Curing copper or silver plating copper conductive adhesive was prepared by using acrylated epoxy resin or polyacrylic resin.
以環氧*********樹脂和聚*********樹脂,銅粉和鍍銀銅粉制備了四種不同品種的紫外光固化導電膠。
The method of preparation of water-based functional construction sealant using polyacrylic ester LIPN emulsion as basic material was presented in this paper.
介紹了以聚*********酯互穿網絡聚合物乳液(LIPN)為基料,配以填料制備水基建築密封膠的方法。
Due to their virtues, polyacrylic series functional polymer microspheres have been widely used in various areas.
聚*********系微球在分離、催化及生物醫學等領域具有廣泛的應用。
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*********二叔丁基為引發劑,*********甲醚醋酸酯為溶劑,進行了*********酯溶液共聚合後,用水稀釋得到*********樹脂分散體。
The static conducting slurry was then compounded with polyacrylic emulsion for coating preparation and static conducting performance of the film was investigated.
并将導靜電漿料與聚*********酯類乳液複合配制塗料,考察塗膜的導靜電性能。
A high water absorption polyacrylic acid resin was obtained using inverse suspension polymerization.
采用反相懸浮聚合法合成了聚*********高吸水性樹脂。
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.
本文通過實驗确定了新型*********漿料的合成工藝,并将合成漿料與國内外同類漿料進行了性能測試對比。
Syntheses of low - molecular weight polyacrylic acid sodium with water as solvent and APS - SHS as redox initiator are stu***d.
以水為溶劑,************-亞硫酸氫鈉氧化還原引發體系,研究了低分子質量聚*********鈉的合成。
This article deals with the synthesis and characterization of epoxy-polyacrylic ester IPN emulsion.
主要讨論環氧樹脂-聚*********酯互穿網絡乳液的合成及其表征。
There are mainly starch, PVA and polyacrylic size as sizing materials in textile warp sizing.
紡織經紗上漿中常用的漿料主要有澱粉、聚乙烯醇(PVA)和*********類漿料三大類。
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*********、氫氧化鈉等為原料,以無機*********為鍊轉移劑合成了系列低分子質量聚*********鈉分散劑。
It relates to pyrolysis gas Chromatography to evaluate polyacrylic rubber and some other copolymer or blends.
李文應用裂解色譜法對*********酯等物質的共聚物與共混物進行了鑒定。
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.
聚丙烯纖維和輕燒氧化鎂雙摻技術的應用,在面闆混凝土的防裂中發揮了明顯的作用。
The derived polyacrylic acid (PAA)-PVA grafted fibres possess cation exchange characteristics.
制得的PAA-接枝維綸具陽離子交換特性。
The results shows that further treatment of superabsorbent composite products containing kaolin is easier than that of pure polyacrylic acid salt superabsorbent.
加入高嶺土粉體的複合型高吸水性樹脂用溶液法聚合,産物不易粘壁,後處理方面優于純的交聯聚*********鹽樹脂。
Polyacrylic acid contain only group–COO- and cannot well inhibit the deposition of calcium phosphate and stabilize zinc salt.
聚*********由于主要官能團為羧酸官能團,結構單一,使得在抑制磷酸鈣垢、穩定鋅鹽等方面效果不顯著。
Objective To evaluate the therapeutic efficacy of the domestic polyacrylic acid(PAA) gel for the treatment of dry eyes.
目的評價國産聚*********(PAA)凝膠治療幹眼症的臨床療效。
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.
通過溶液聚合法、乳液聚合法合成了聚*********液體漿料,對所合成的聚*********液體漿料經沉降、烘幹、粉碎制取了粉體聚*********漿料。
The invention adopts a nucleocapsid emulsion polymerization process to prepare a polyacrylic acid resin III material for medicine coating.
本發明采用核殼乳液聚合工藝,制備用于藥物包衣的聚*********樹脂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.
本發明的聚*********納米凝膠微球,可以用作為藥物的載體,特别是用作為蛋白質藥物的載體。
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.
用乳化浸漬的方法,由交聯聚*********、聚丙烯酸甲酯、************和水制備了準固态複合聚合物電解質(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*********酯樹脂為原料,以六*********三聚氰胺樹脂作交聯劑,配制了不同的水性鋁塑複合闆塗料。
The invention discloses coal water slurry additive of polyacrylic acid series. The general molecular formula is shown in the right formula.
本發明公開了聚*********系列水煤漿添加劑,其結構通式如右式。
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;
分散劑MF、擴散劑NNO、聚*********、紅油使顔料的鮮豔度、着色力和透明度提高,色光有所變化;
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)與聚乙烯醇(PVA)混合,制備成PAA/PVA混合膜并對其進行熱處理。
A high oil-absorption resin of polyacrylic acid system with moderate crosslinking was synthesized by suspension polymerization.
采用懸浮聚合法合成************酸酯類高吸油樹脂,研究了交聯劑、引發劑用量對樹脂性能的影響。
polyacrylic acid
[建]聚丙烯酸
polyacrylic resin
聚丙烯酸樹脂
聚丙烯酸(Polyacrylic acid,簡稱PAA)是一種重要的合成水溶性高分子聚合物,化學式為 (C₃H₄O₂)ₙ。它由丙烯酸單體(CH₂=CHCOOH)通過加成聚合反應形成,主鍊為碳-碳結構,側鍊帶有大量羧基(-COOH)官能團。其基本結構單元可表示為:
$$ ce{[-CH2-CH-]_{nvphantom{}}} quad ce{underset{displaystyle C}{|}{O}} quad ce{underset{displaystyle |}{O}} quad ce{H} $$
核心特性與性質:
水溶性與電離特性
聚丙烯酸具有優異的水溶性。其側鍊羧基在水中可電離産生氫離子(H⁺),形成帶負電的聚陰離子鍊(-COO⁻),溶液呈酸性。這種電離行為使其具有pH響應性,溶液黏度、溶解性等會隨pH值變化顯著改變。
螯合與分散能力
羧基賦予其強大的螯合金屬離子的能力,能與鈣、鎂等多價金屬離子形成穩定絡合物,有效阻止水垢生成。同時,其陰離子特性可吸附在顆粒表面産生靜電斥力,阻止顆粒聚集沉降,廣泛用作分散劑。
增稠與流變改性
高分子量的聚丙烯酸在水中能形成高黏度溶液,通過分子鍊的纏繞和水合作用實現增稠,常用于調節化妝品、塗料等産品的流變性能。
主要應用領域:
參考資料:
: 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 是一個化學相關術語,具有以下兩層主要含義:
如需進一步了解具體應用或詞源,可參考化學詞典或紡織行業标準。
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