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接枝配方和工艺
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  formulation and processing
     Optimum formulation and processing parameters are DCP 0.1 phr,GMA 3 phr and St 3 phr,together with temperature of 180 ℃,rotating speed of 60 r/min and reaction time of 10 minutes.
     确立了最佳的接枝配方和工艺条件 :过氧化二异丙苯 (DCP)用量 0 1份、GMA用量 3份、St用量 3份、温度 180℃、转速 60r/min、反应时间为 10min。
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     The formula and technology is studied.
     研究了氯化钾镀锌的配方工艺
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     In this paper,the technological conditions are discussed.
     探讨了产品的工艺参数配方
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  formulation and processing
In this investigation, the effects of formulation and processing factors on the adhesion between polyurethane (PU) and plasticized poly(vinyl chloride) (pPVC) layers was studied using the Taguchi method for experimental design.
      
Influence of formulation and processing variables on ball mill refining of milk chocolate
      
The influence of both formulation and processing variables on the physical characteristics of milk chocolate has been studied during milling with a pilot ball mill.
      
However, their eventual adoption for the treatment of a wide range of genetic diseases requires considerable progress with regards to carrier formulation and processing.
      
This requires including this meta level during query formulation and processing.
      
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HDPE/LDPE)-g-GMA is prepared by melt grafting.Effects of initiators and GMA dosages,St/GMA ratios,rotating speeds and reaction times on grafting yield are studied.Optimum formulation and processing parameters are DCP 0.1 phr,GMA 3 phr and St 3 phr,together with temperature of 180 ℃,rotating speed of 60 r/min and reaction time of 10 minutes.Reaction kinetics accords with mechanism and characteristic of grafting reaction.Melt grafting of GMA onto HDPE/LDPE blend is proved by FT-IR.DTA shows that introduction of...

HDPE/LDPE)-g-GMA is prepared by melt grafting.Effects of initiators and GMA dosages,St/GMA ratios,rotating speeds and reaction times on grafting yield are studied.Optimum formulation and processing parameters are DCP 0.1 phr,GMA 3 phr and St 3 phr,together with temperature of 180 ℃,rotating speed of 60 r/min and reaction time of 10 minutes.Reaction kinetics accords with mechanism and characteristic of grafting reaction.Melt grafting of GMA onto HDPE/LDPE blend is proved by FT-IR.DTA shows that introduction of GMA to HDPE/LDPE-g-GMA lowers the regularity of molecular chain, thus decreasing the melting temperature.

采用熔融接枝的方法 ,制备了 (HDPE/LDPE) -g -GMA(甲基丙烯酸缩水甘油脂 )接枝物 ,研究了引发剂的用量、GMA的用量、苯乙烯 (St) /GMA的配比、转速、反应时间等因素对接枝率的影响。确立了最佳的接枝配方和工艺条件 :过氧化二异丙苯 (DCP)用量 0 1份、GMA用量 3份、St用量 3份、温度 180℃、转速 60r/min、反应时间为 10min。接枝反应动力学曲线与接枝反应过程的机理和特征相吻合。红外光谱的分析结果表明GMA确实接到了大分子链上 ;DTA分析结果表明 ,接枝物中GMA的引入导致大分子链的规整性降低 ,熔融温度略有下降。

Different structures of PNIPA brushes on the surface of uniform polystyrene particles were obtained by using different feed composition and strategy with photo-initiation. Thermo-sensitive characteristics of the above resulting brushes were investigated. Furthermore, the influences of pH value and ionic strength of water medium were also studied. The results indicate that the phase transition temperature of PNIPA homopolymer brushes grafted on the surface is between 29 ℃ and 33 ℃. The phase transition temperature...

Different structures of PNIPA brushes on the surface of uniform polystyrene particles were obtained by using different feed composition and strategy with photo-initiation. Thermo-sensitive characteristics of the above resulting brushes were investigated. Furthermore, the influences of pH value and ionic strength of water medium were also studied. The results indicate that the phase transition temperature of PNIPA homopolymer brushes grafted on the surface is between 29 ℃ and 33 ℃. The phase transition temperature increases and the transition ranges tends to be broad when PNIPA brushes were substituted with P(NIPA-co-AA) or P(NIPA-co-NVP) brushes obtained by the copolymerization of NIPA with AA and NVP, respectively. However, the phase transition is not obvious if adding excessive hydrophilic comonomer. Two transition regions appear when both PNIPA and P(NIPA-co-AA) brushes were jointly existing on the surface. The interesting fluctuant thermosensitivity with wide ranges is found if both PAA and PNIPA brushes were simultaneously anchored on the surface. Moreover, swelling ratio of P(NIPA-co-AA) brushes increases in water medium with higher pH value. On the contrary, the above swelling ratio decreases with higher ionic strength and the excursion of its phase transition region is observed.

针对通过乳液种子半连续聚合法制得的表面带毛发状温敏性高分子刷单分散聚苯乙烯微球,研究不同接枝配方和工艺所导致的壳层不同高分子刷结构的温敏特性,并考察介质环境pH值和离子强度的影响。结果表明,纯PN IPA刷的相变温度在29℃~33℃之间,通过共聚所得的单一P(N IPA-co-AA)或P(N IPA-co-NVP)刷均使相转变温度提高,转变区域拓宽,当亲水性共单体的量过多时会导致相变过程不明显。微球表面同时存在PN IPA和P(N IPA-co-AA)两种高分子刷杂混时,会出现两个相变区域。而表面同时存在PAA和PN IPA两种纯高分子刷混合时,其相变过程不明显,且呈现奇异的震荡现象。此外,体系pH值较大时,有利于刷的舒展,表现出高的溶胀倍率,而离子强度增大则使刷的相变程度减弱,相变温度也发生偏移。

 
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