登录

双语推荐：稳定剂

进入期刊文章
介绍了PVC木塑热稳定剂的稳定机理、各类热稳定剂的特点及热稳定剂的发展趋势。综述了目前国内外各类PVC木塑热稳定剂合成与应用研究的新进展,并对我国热稳定剂的环保化发展方向提出了
The stabilizing mechanism and the characteristic kinds of PVC wood plastic composite heat stabilizers were introduced.The development trend of PVC heat stabilizers was looked forward.The recent research progress on the synthesis and application of all kinds of heat stabilizers for PVC wood plastic composite at home and abroad were summarized.Some suggestions on the development trend of environment-friendly heat stabilizers in China were also put forward.

[ 可能符合您检索需要的词汇 ]

进入期刊文章
目的为皮上划痕人用布氏菌活疫苗筛选存活率高、无明胶冻干稳定剂。方法以冻干活菌存活率为指标,对甘油、甘露醇、蔗糖、葡萄糖、乳糖、谷氨酸钠、甘氨酸、谷氨酸、脯氨酸和硫脲等10种稳定剂通过单因素筛选法,筛选出冻干存活率高的4种单因素稳定剂成分;将4种单因素稳定剂成分进行正交试验优化,筛选出最优稳定剂组合。结果单因素试验结果显示,甘油、葡萄糖、谷氨酸钠和硫脲4种稳定剂成分冻干后活菌存活率较高,对布氏菌活疫苗具有良好保护效果。通过正交试验筛选出最优稳定剂配方中四组分的质量分数分别为甘油1.5%、葡萄糖5%、硫脲1.5%、谷氨酸钠1.0%,该配方的冻干存活率可达81.5%。结论无明胶冻干稳定剂对布氏菌活疫苗具有较好的保护作用。
Objective To screen a gelatin-free protective agent for freeze-dried live Brucella vaccine. Methods The pro-tective effects of 10 different protective agents were compared with single factor such as glycerol, mannitol, sucrose, glu-cose, lactose, glutamine sodium, glycine, glutamic acid, proline and thiourea, and the orthogonal design was carried out. The viable count as a index was detected for selecting a better formula. Results The tested results showed that glycerol, glucose, glutamic sodium and thiourea is the good protective agent. The formula containing 1. 5% glycerol, 5% glucose, 1. 5% thiourea and 1. 0% glutamic sodium is the most optimal formula. The viable rate of freeeze-dried vaccine after adding this formula agent could be achived 81. 5%. Conclusions The gelatin-free freeze-dried cryoprotectant is of the good protective effect on the live Brucella vaccine.

[ 可能符合您检索需要的词汇 ]

进入期刊文章
采用单因素和正交试验的方法研究不同稳定剂及其复配制剂对雪莲果浑浊汁的稳定效果。结果表明,单一稳定剂的稳定效果列于前三位的为海藻酸钠、果胶、明胶;该三种稳定剂复合制剂的稳定效果优于单一稳定剂,其中以0.05%海藻酸钠+0.05%果胶+0.04%明胶配制的复合稳定剂对雪莲果浑浊汁的稳定效果最好,在4℃条件下储藏40 d的果汁自然分层率为0.70%。
Using single factor and orthogonal test methods, we studied the stabilizing effects of different stabilizers and their compound stabilizer on the cloudy juice of yacon. The results showed that, the stabilizing effects of the single stabilizer from high to low were sodium alginate, pectin and gelatin, the stabilizing effect of the compound of the three kind of stabilizers was better than that of single stabilizer, the stabilizing effect of compound stabilizer 0.05%sodium alginate+0.05%pectin+0.04%gelatin was the best, and the naturally layered rate was 0.70%when stored at 4℃for 40 d.

[ 可能符合您检索需要的词汇 ]

进入期刊文章
对酸性含乳碳酸饮料加工过程中易引起沉淀的环节进行了稳定性研究,比较了不同稳定剂的稳定效果,并确定了最佳稳定剂及最优复配稳定剂。结果表明,复配稳定剂(海藻酸钠0.3%+CMC0.4%+卡拉胶0.1%对含乳碳酸饮料的稳定效果最为明显,所得含乳碳酸饮料的形态均匀,产品呈乳白色的稳定体系,并且长时间放置不分层。
The stability of the carbonic acid drink containing milk with low-pH was studied. The results showed that the stabilizing effect of carbonic acid drink with compound stabilizer (0.3% Sodium alginate +0.4 % CMC+0.1% car-rageenan) was obvious. The Prepared drink had milk white color, uniform emulsification and no flocculated sediment.

[ 可能符合您检索需要的词汇 ]

进入期刊文章
目的：探讨锂盐等3种情绪稳定剂对哇巴因上调星形胶质细胞ERK1/2磷酸化水平的作用。方法将培养星形胶质细胞随机分为生理盐水对照组、哇巴因组、情绪稳定剂组（碳酸锂、卡马西平和丙戊酸钠）和哇巴因+情绪稳定剂组。采用Western印迹法半定量检测各组ERK1/2磷酸化水平。结果哇巴因组ERK1/2磷酸化水平升高，与对照组和情绪稳定剂组相比，差异有统计学意义（P<0.05），而哇巴因+情绪稳定剂组与对照组和抑制剂组相比，差异无统计学意义。结论3种情绪稳定剂能抑制哇巴因上调星形胶质细胞ERK1/2磷酸化水平。
Objective To investigate the effets of three mood stabilizers on ouabain?induced ERK1/2 phosphorylation in astrocytes. Methods As?trocytes were treated with different agents and divided into different groups accordingly,namely,the control group with saline,the group with oua?bain,the group with mood stabilizers(lithium carbonate,carbamazepine,sodium valproate)and the group with ouabain+mood stabilizers. The phosphorylation of ERK1/2 in each group was analyzed by Western blot. Results Compared with saline and mood stabilizer groups,the phosphoryla?tion of ERK1/2 was increased in the ouabain group,with statistical significance(P<0.05). There was no significant difference in ERK1/2 phosphoryla?tion between the group with ouabain+mood stabilizers and the control or mood stabilizer group. Conclusion The three kinds of mood stabilizers can inhibit ouabain?induced ERK1/2 phosphorylation in astrocytes.

[ 可能符合您检索需要的词汇 ]

进入期刊文章
通过刚果红实验、热老化烘箱实验和流变实验,研究了两种自制高效钙锌复合热稳定剂对聚氯乙烯(PVC)热稳定性能及其流变性能的影响,并且与市场上应用的两种钙锌复合稳定剂进行比较。结果表明,自制二羟甲基丙酸钙锌类复合热稳定剂的效果最佳,在180℃下保温80 min仍无明显变色,刚果红试纸在69.5 min时变色,流变性能各参数均良好,优于市场上所售的两种国内外产品;自制的硬脂酸钙锌复合热稳定剂作为主稳定剂的稳定效果与国外产品相当。
The influence of two kinds of homemade Ca/Zn composite thermal stabilizers with high efficiency on the thermal stabilities and processing rheological properties of poly (vinyl chloride)(PVC) was evaluated by means of congo red test,thermal aging oven test,rheological test. The results show that the thermal stabilities and rheological properties of PVC with calcium/zinc 2,2-bis(hydroxymethyl) propionate composite thermal stabilizer is better than the products sold in the market,there is no noticeable discoloration for 80 min at 180℃,the congo red test paper do not discolor until 69.5 minutes later,the various parameters of the rheological properties are good. The properties of the other homemade stabilizer using Ca/Zn stearate is comparable with the foreign product.

[ 可能符合您检索需要的词汇 ]

进入期刊文章
以钙-锌-水滑石复合热稳定剂或铅盐复合热稳定剂作为热稳定剂,加入丙烯酸酯共聚物(ACR)KM 310,ACR 401及聚乙烯(PE)蜡、硬脂酸等助剂,探讨阻燃助剂Mg(OH)2用量对PVC加工流变性能和热稳定性能的影响。固定热稳定剂及ACR KM 310,ACR 401,PE蜡和硬脂酸等助剂用量,随着Mg(OH)2用量的增加,PVC最小扭矩、最大扭矩及平衡扭矩增大,加工能耗增大,加工热稳定性能降低。当Mg(OH)2用量小于10份时,最大扭矩小于38.3 N·m,热稳定时间大于20 min;当Mg(OH)2用量大于20份时,最大扭矩大于40 N·m,热稳定时间小于14 min;以钙-锌-水滑石复合热稳定剂或铅盐复合热稳定剂作为热稳定助剂,Mg(OH)2用量不宜超过20份。
Effect of Mg(OH)2 on rheological properties and processing stability of poly(vinyl chloride)(PVC) was discussed, in which Ca-Zn-hydrotalcite composite thermal stabilizer or composite thermal stabilizer of lead sulfate tribasic and lead phosphate dibasic,acrylate copolymer(ACR) KM 310,ACR 401,PE wax and stearic acid were used as auxiliary. When content of thermal stabilizer,ACR KM 310,ACR 401,PE wax and stearic acid were kept constant,the minimum torques,maximum torques,the balance torque and the processing energy consumption increase,but the processing thermal stabilities reduce with increasing of Mg(OH)2 content. The maximum torque is lower than 38.3 N · m and thermal stabilization time exceed 20 min,in which Mg(OH)2 content is below 10 phr. While Mg(OH)2 content exceeds 20 phr,the maximum torque is more than 40 N · m and thermal stabilization time is lower than 14 min. Mg(OH)2 content should be lower than 20 phr,in which Ca-Zn-hydrotalcite composite thermal stabilizer or

[ 可能符合您检索需要的词汇 ]

进入期刊文章
目的：研制酶联免疫吸附试验试剂盒中各组分的稳定剂，使得试剂盒保存期达到国家相关规定。方法采用经验法和正交法相结合的办法，配制一系列稳定剂配方，对酶标板、酶标抗体及标准品等进行处理，通过对照试验，筛选出稳定效果最好的配方。结果筛选到一种包被稳定剂（质量分数：牛血清清蛋白0．5％，明胶0．25％，海藻糖5％，PEG40000．1％），一种酶标抗体稳定剂（质量分数：牛血清清蛋白1％，蛋白胨1％，蔗糖10％，海藻糖5％，PEG40000．25％）。结论在稳定剂作用下，酶联免疫吸附试验试剂盒可在4℃条件稳定放置1年。
Objective To develop ELISA kit stabilizer for each component ,with which the shelf life of kit could meet the com-mercial need .Methods A series of stabilizers for microplate ,enzyme-labeled antibody and standards were prepared by the means of experience and orthogonal approach ,through controlled trials ,screening out the best stabilizer formulations .Results A kind of coa-ted stabilizer (mass fraction :bovine serum albumin 0 .5% ,gelatin 0 .25% ,trehalose 5% ,PEG4000 0 .1% ) and a kind of enzyme la-beled antibody stabilizer (mass fraction :Bovine serum albumin 1% ,peptone 1% ,sucrose 10% ,trehalose 5% ,PEG4000 0 .25% ) were screened out .Conclusion The ELISA kits can be stable at 4 ℃ for 1 year after treated with the obtained stabilizers .

[ 可能符合您检索需要的词汇 ]

进入期刊文章
综述了三（2-羟乙基）异氰尿酸酯合成研究进展,及其在含氯聚合物的锌基复合稳定剂和有机基复合稳定剂中的应用研究进展。
The recent research progress on the synthesis of tris（2-hydroxyethyl）isocyanurate was reviewed. And its application in zinc based and organic based composite stabilizers for chlorine-containing polymers were also summarized.

[ 可能符合您检索需要的词汇 ]

进入期刊文章
考察了不溶性硫黄制备过程中稳定剂种类及用量、反应温度及恒温时间对产物中不溶性硫黄的含量及高温稳定性的影响，通过扫描电镜、X射线衍射仪及差示扫描量热仪对产物进行了分析。结果表明，防老剂264与硬脂酸钙并用作为稳定剂的效果要优于单一使用防老剂264或硬脂酸钙，使用该复合稳定剂的最佳反应条件为温度240℃、稳定剂质量分数为硫黄的0.10％、恒温时间30 min，所制备产物中不溶性硫黄的质量分数可达到46.24％，高温稳定性可达到60.24％。
The insoluble sulfur was prepared , and the effects of the type and dosage of stabilizers , re-action temperature and thermostatic reaction time on content and high-temperature stability of the insolu-ble sulfur were studied.The obtained product was characterized by scanning electron microscope , X-ray diffraction and differential scanning calorime-try.The results showed that the efficiency of antioxi-dant 264/calcium stearate complex stabilizer was better than that of antioxidant 264 or calcium stea-rate single stabilizer.Under the optimized condition of stabilizer/sulfur ( mass ratio ) 1/1 000 , reaction temperature 240 ℃ and thermostatic reaction time 30 min, the mass fraction and high-temperature sta-bility of the insoluble sulfur reached up to 46.24%and 60.24%, respectively.

[ 可能符合您检索需要的词汇 ]