The results showed that during hydrogenation of rosin under the experimental conditions the dominant reaction was the formation of dihydro resin acids with minor products of tetrahydro resin acids and dehydroabietic acid.

證實在本實驗條件下松香催化加氫過程中的主體反應是樹脂酸的二氫化成人免费黄色视频观看在线，只伴隨少量的四氫化和極少量的脫氫反應午夜性一级视频。

A photosensitive resin for UV curing acrylic powder coating has been synthesized by esterification of methacrylic acid and GMA-type acrylic resin at the presence of ethyl acetate as solvent, tetramethylammonium chloride as catalyst, YK as inhibitor.

以醋酸丁酯為溶劑，四甲基氯化銨為催化劑欧美日韩高清，氮氧自由基為阻聚劑67色国产欧美，由甲基丙烯酸縮水甘油酯類丙烯酸樹脂與甲基丙烯酸酯化反應制得了UV固化粉末涂料用感光性丙烯酸樹脂。

The influence of thixotropic reactive resin—Ac resin the automobile coating have been studied.

研究了觸變性反應型樹脂對汽車涂料性能的影響av在线免费看污片。

The effects of solution\'s pH value, mol ratio between phenyl aldehyde and L-Arginine, concentrations of sodium chloride, ammonia chloride andL-Lystine, initial concentration of L-Arginine on precipitation rate of a -tolylene arginine were investigated, the results indicated that phenyl aldehyde precipitation method\'s appropriate pH value was higher than 11, suitable mol ratio between phenyl aldehyde and L-Arginine was 1.25, initial concentration of L-Arginine was must higher than 15g/L, sodium chloride had little effect on precipitation rate, on the contrary, ammonia chloride and L-Lystine had great effect on it, both of them must be eliminated; At the same time, adsorption isotherm at 25 C of L-Lystine on anion exchange resin A was measured, the result showed that the maximal equilibrium adsorbance was 30mg/g, the influences of solution\'s pH value, temperature, concentration of chloride ion on adsorption of L-Lystine by anion exchange resin A were also studied, the results indicated that appropriate operational pH value was 0.5 0.2, the effect of temperature on adsorption ratio was little, process could be operated at room temperature, the concentration of chloride ion must be eliminated.

考察了溶液pH值狠狠艹av、苯甲醛與L-精氨酸摩爾比、氯化鈉與氯化銨濃度黄色日、L-賴氨酸濃度日韩在线不卡免费视频一区、L-精氨酸初始濃度對苯甲醛沉淀L-精氨酸的影響，結果表明第一页自拍偷拍，沉淀反應的適宜pH值大于11在线观看的黄，苯甲醛與L-精氨酸的適宜摩爾比為1.25，(來源：Aa6BC論文網www.abclunwen.com)L-精氨酸適宜的初始濃度在15g/L以上美女人人操人人射人人干，氯化鈉的存在對沉淀率基本上沒有影響欧美视频黄网，而氯化銨和L-賴氨酸的存在使沉淀率下降；同時測定了25℃時陰離子交換樹脂A吸附L-賴氨酸的吸附等溫線白色白色白色在线观看平台，表明其最大平衡吸附量為30mg/g播放一级毛片无码免费播放，考察了溶液pH值、溫度超碰在线免费网址、氯離子濃度對陰離子交換樹脂A吸附脫除L-賴氨酸的影響人人艹人人黄色，結果顯示從L-精氨酸和L-賴氨酸混合液中吸附分離出L-賴氨酸的適宜pH值為10.5±0.2，溫度對L-賴氨酸吸附率影響不大曰本啪啪啪网址，吸附過程可在室溫下進行，氯離子的存在使L-賴氨酸的吸附率降低免费看在线黄网。

Acrylic resin as coated material, N- thiophosphric triamide and dicyandiamde as biological inhibitors, with Fluid Bed spraying biological inhibitors on urea granular surface and coated it with acrylic resin afterward, four coated urea fertilizers were made for monitoring slow/controlled effects of coated fertilizers in distilled water.

采用丙烯酸樹脂為包膜材料国产日本三级视频，以NBPT和DCD為生化抑制劑，利用流化床對尿素進行涂層生化抑制劑及包膜一级毛片无码视频在线播放，制備4種包膜肥料九九精品在线视频在线观看，對這些包膜肥料在水中的控釋效果進行了研究。

Acrylic resin as coated material, N- thiophosphric triamide and dmyandlamde as biological inhibitors, with Fluid Bed spraying biological inhibitors on urea granular surface and coated it with acrylic resin afterward, four coated urea fertilizers were made for monitoring slow/controlled effects of coated fertilizers in distilled water.

采用丙烯酸樹脂為包膜材料a级毛片200禁在线观看，以NBPT和DCD為生化抑制劑美国黄色视频免费观看，利用流化床對尿素進行涂層生化抑制劑及包膜精品黄色福利x，制備4種包膜肥料，對這些包膜肥料在水中的控釋效果進行了研究99久久精品无码专区。

An anionic phenol-formaldehyde resin which synthesized by phenol, formaldehyde and diethylene triamine was studied in this paper, and this modified phenol-formaldehyde resin was used in papermaking as an intensifier.

結果表明查询黄色网站，單獨使用改性酚醛樹脂時增強效果不顯著；改性酚醛樹脂和陽離子淀粉共同使用能有效提高紙張的抗張指數(shù)和環(huán)壓指數(shù)国内外黄片二级。

Amine terminated polyurethane resin has been synthesized with diethylene triamine and isocyanate terminated polyurethane resin mentioned above.

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In application of modified phenol-formaldehyde resin in OCC pulp, firstly the application effictiveness of phenol-formaldehyde resin modified by triethylamine and diethylene triamine in OCC pulp was researched, and the optimum application effictiveness was gotten through mon- factor trial.

通過對改性酚醛樹脂在OCC廢紙漿中的應用研究，考察了二乙烯三胺和三乙胺改性酚醛樹脂在OCC廢紙漿中的應用效果亚洲日韩毛片一级无码，并通過單因素實驗得到了改性酚醛樹脂的最佳應用效果欧美精品在线看。

It has shown that the tensile index and ring crush index of handsheets were increased by 15.90% and 9.65%, when phenol-formaldehyde resin modified by diethylene triamine was used in OCC pulp alone (the dosage of resin was 1.0%), and then adding cationic starch to pulp (the dosage of starch was 1.0%), the tensile index and ring crush index of handsheets were increased by 32.81% and 29.29%.

實驗結果表明，二乙烯三胺改性的酚醛樹脂單獨作用于OCC廢紙漿時(用量為1.0%)日韩午夜软件在线观看视频网站大全，抗張指數(shù)和環(huán)壓指數(shù)分別增加了15.90%和9.65%18岁一下禁止观看网站，當加入陽離子淀粉時(用量為1.0%)，抗張指數(shù)和環(huán)壓指數(shù)分別增加了32.81%和29.29%日韩午夜福利片免费观看一区。