過度縮聚樹脂 的英文怎麼說
中文拼音 [guòdùsuōjùshùzhī]
過度縮聚樹脂
英文
over-condensed resin- 過 : 過Ⅰ動詞[口語] (超越) go beyond the limit; undue; excessiveⅡ名詞(姓氏) a surname
- 度 : 度動詞[書面語] (推測; 估計) surmise; estimate
- 縮 : 縮構詞成分。
- 聚 : 動詞(聚集; 聚積) assemble; gather; get together
- 樹 : Ⅰ名詞1 (木本植物的通稱) tree 2 (姓氏) a surname Ⅱ動詞1 (種植; 栽培) plant; cultivate 2 (樹...
- 脂 : 名詞1. (動植物所含的油質) fat; grease; tallow 2. (胭脂) rouge 3. (姓氏) a surname
- 過度 : excessive; over; undue; ana-; hyper-
- 樹脂 : resin; jaffaite; peucine
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It requires compatible part and support materials, subject to the constraints of the deposition and removal processes. the constraints on part and sacrificial support materials were identified and a compatible material combination was developed : unsaturated polyester and wax. some other investigation is conduct, such as the effect of additive on the cure of polyester, the effect of the filling on strength and shrinkage. the part strength is determined both by the bulk material properties of the part materials and by their interlayer bonding
從分析材料的選擇機制出發,本文經過大量的實驗分析,選擇了一組較好的材料組合:不飽和聚酯樹脂與蠟的組合,通過實驗分析了引發劑、促進劑對其固化過程的影響以及填料對其強度和收縮率的影響,通過測試,分析了材料的粘接強度,為工藝實現提供重要依據。The results from basic properties, shear resistance, pressure strength and point film test show that different low molecular polyamide may affect extrodinary by the properties of cured expoxy resin the higher viscosity, the lower cured activity ( rate ) ; the higher amine number, the stronger cure construction. the cured expoxy resin will prossess unfavourable mechanics when it is cured by the polyamide with both too high viscosity and amine number
用基本性能、剪切強度、抗壓強度、塗膜性能測定等方法研究了3種不同胺值及粘度的低分子量聚酰胺對環氧樹脂固化物性能的影響.結果表明,聚酰胺粘度大使固化交聯變難,胺值過高易造成固化收縮;同時粘度過大、游離胺含量過高的產品將對固化物各項力學性能不利First, according to the demand of vimp for resin system, the reaction kinetics and rheological of up resin are investigated and the optimal content of low additive profile ( lpa ) is determined. then vimp based on a high - permeable medium and grooves are studied by visual experiments, through which the appropriate high - permeable mediums are selected and the parameters of width, depth and spacing for flow grooves and spacing for supply grooves are optimized. furthermore, various factors affecting the mold filling process are discussed and the whole vacuum infusion procedures are described taking examples of the manufacture of a model boat and a sandwich panel in one infusion
文中首先根據vimp對樹脂體系的要求,對vimp用不飽和聚酯樹脂體系的動力學和流變學性能進行了研究,確定了最佳低收縮添加劑的含量;對高滲透介質型和溝槽型vimp開展了實驗研究,通過可視化實驗優選出較好的高滲透介質,確定了引流槽的寬度、深度和槽間距及主槽的槽間距等工藝參數並進行了優化;對影響充模過程的各種因素進行了詳細的討論,並以模型船和夾芯面板的製作為實例描述了兩種vimp的成型過程;在實驗的基礎上,建立了二維滲漏模型,採用控制體有限元法對高滲透介質型vimp進行了成型過程的計算機模擬計算,通過充模時間和流動前峰的計算值與實驗結果的比較,驗證本文所採用的數學模型和數值方法的正確性,其結果對實際生產具有一定的理論指導意義。In this thesis, the sls molding properties of some metal - base composite powders composed of metal powder mixed by several regularly used polymers " powder were studied, on the basis of which, a new sls composite material made by 316 stainless steel powder mixed by epoxy powder was developed and produced. the molding technics and adherent mechanism of the material in sls process was analyzed and studied, and the high temperature sintering technics of the green parts of the material was discussed as well
本文主要針對快速成型的sls方法,研究比較了幾種常用的聚合物粉末添加到金屬粉末中所構成的金屬基復合粉末的成型性,並且研製開發了316不銹鋼粉末與環氧樹脂粉末共混復合粉末作為成型材料,對其sls過程的成型工藝、聚合物粘接機理以及型坯的高溫燒結工藝進行了研究論述,並進一步對型坯的高溫燒結過程、燒結中的收縮變形和燒結后的強度作了分析研究。Abstract : through copolycondensation method, a phenol - melamine - urea - formaldehyde resin was prepared. the discussion was concentrated on the preparation method of the resin and it ' s application condition in pressing exterior - type medium density fiberboard
文摘:通過共縮聚的方法,制備了具有良好的耐水性能和膠合性能的苯酚-三聚氰胺-尿素-甲醛樹脂。著重討論了該樹脂的制備方法以及在壓制室外型中密度纖維板中的應用情況。分享友人