二甘醇

PET酯化反应过程中的二甘醇生成

Formation of DEG in PET esterification process

不过FDA没有提到二甘醇也被用作烟草制品诸如卷烟的一种湿润剂。

However the FDA failed to mention that DEG is also used as a humectant in tobacco products such as cigarettes .

用色谱法测定了不同温度下，低碳醇（C1&C6）和水在二甘醇中的无限稀释活度系数。计算了相应的混合热和溶解热。

Infinite-dilution activity coefficients of alcohols ( C_1 & C_6 ) and water in diethyl -

二甘醇用于胶体Sb2O5的制备及稳定作用

Preparation and stabilization of colloidal Sb_2O_5 using diethylene glycol as stabilizer

对甲苯磺酰异氰酸酯柱前衍生化HPLC法测定二甘醇等物质的含量

Determination of Diethylene Glycol Et Al . by HPLC after Precolumn Derivatization with P-toluenesulfonyl Isocyanate

醇解法测定PEN中二甘醇含量

Determination of DEG in PEN by alcoholysis method

聚酯生产中TiO2对二甘醇生成的影响

Effect of TiO_2 on the generation of DEG in the production of polyester

研究了ASP型固体酸催化剂一缩乙二醇（二甘醇）环化脱水合成1,4-二氧六环的液相反应。

The method of liquid phase synthesis of dioxane from the cyclodehydration of diethylene glycol catalyzed by ASP-type solid acidic catalysts was studied .

用Williamson法合成二甘醇单乙醚的研究

Studies on Synthesis of Diethylene Glycol Monoethyl Ether Using Williamson Method

以二甘醇双甲基丙烯酸酯为交联剂，用化学交联法对PVC糊树脂进行交联改性。

This paper describes the crosslinking modification of PVC paste resin by chemical crosslinking method in which diethylene glycol dimethacrylate is used as a crosslinking agent .

Williamson反应合成二甘醇二甲醚的研究

Synthesis of Diethylene Glycol Dimethyl Ether by Williamson Reaction

将己内酰胺、丙三醇、二甘醇、糖用作低压短周期三聚氰胺甲醛（MF）树脂的改性剂。

Hexanolactam , glycerin , diethylene glycol and sugar are usually used as modifier of melamine resin in short cycle under the low pressure .

二甘醇（DEG）在聚对苯二甲酸乙二酯（PET）切片中的含量是PET的重要质量指标，在生产过程中必须严格控制。

The content of diethylene glycol ( DEG ) in polyethylene terephthalate ( PET ) chip is a very important quality index and must be strictly controlled in PET production .

考察了无机酸对二甘醇（DEG）脱水环化制备1,4-二氧六环（DOX）反应的催化效果。

The catalytic performance of mineral acids for the synthesis of 1 , 4-dioxane by cyclodehydration of DEG was studied .

比较两种热泵的性能，水/乙二醇热泵的COP、η较高，而水/二甘醇热泵的温升较大。

By comparison , the COP and η of the water / glycol heat pump are higher , but the temperature boost of the water / di glycol one is larger .

针对PTA粒度不同，采用不同工艺控制重点及降压操作解决二甘醇（DEG）含量偏高等问题。

Considering the different of PTA grain size , using different process control emphasis and depressurize operation , the problem of high DEG content was solved .

巴拿马有上百人因为服用含有DEG（二甘醇，用于防冻剂中）的止咳糖浆而死亡。

A hundred people died in Panama from drinking cough-syrup containing DEG ( diethylene glycol , which is used in antifreeze ) .

由松香及二甘醇等合成醇酸树脂多元醇与TDI反应制备了预聚型聚氨酯涂料。

Alkyd polyols were synthesized using rosin and diethylene glycol ( DEG ) as raw materials and were then reacted with toluene diisocyanate ( TDI ) to produce prepolymer type polyurethane paints .

美国FDA对产品样本初步检测还发现了一种化合物，似乎是二甘醇（DEG），是防冻液的成分，如果摄入可能有毒。

FDA preliminary testing on product samples also revealed a compound that appears to be diethylene glycol ( DEG ), an ingredient used in antifreeze , which may be toxic if ingested .

研究结果表明：1.PET碳酸瓶片中二甘醇（DEG）与间苯二甲酸（IPA）含量的增加以及分子量的增大，均会使结晶速率降低。

The results showed : 1.The content of diethylene glycol ( DEG ) and isophthalic acid , and the increase of molecular weight would decrease the rate of crystallization .

采用烯丙基酯低聚物（DAPAEO）与二甘醇烯丙基碳酸酯（ADC）合成DAPAEO/ADC共聚物，研究了DAPAEO用量对共聚物光学性能、冲击性能的影响。

DAP-AEO / ADC copolymer was synthesized from novel allyl oligomer ester ( DAP-AEO ) and allyl diethylene glycol carbonate ( ADC ) . The effect of the content of DAP-AEO on the optical and impact properties of the copolymer was studied .

2009年，FDA发布了一条与电子烟相关的潜在健康风险警告称，在对一些样本进行实验室研究后发现，里面存在二甘醇等有毒化学物质，而这些东西是用于防冻剂的。

In 2009 , the F.D.A. issued a warning about the potential health risks associated with e-cigarettes , saying laboratory studies of some samples had found the presence of toxic chemicals , including diethylene glycol , which is used in antifreeze .

开发了用硅锆交联粘土固体超强酸（SO4~（2-）/Si-Zr-RCL）催化合成二甘醇二苯甲酸酯（DEDB）的新工艺。

A new technique for synthesizing diethylene glycol dibenzoate ( DEDB ) catalyzed by solid superacid SO_4 ~ ( 2 - ) / Si-Zr-RCL was developed .

根据国内外文献资料，本文采用直接酯化法，以苯甲酸和二甘醇为原料，钛酸四丁酯为催化剂催化合成DEDB。

According to the domestic and foreign datum , the synthetic method of DEDB by using diethylene glycol , benzoic acid and catalyst butyl titanate was introduced .

研究了H2SO4催化一缩二乙二醇（二甘醇）脱水环化生成1,4-二氧六环液相反应的速率与温度、H2SO4浓度的关系。

A method and apparatus for studying the kinetics of liquid phase dehydration reaction of diethylene glycol forming 1,4-dioxane are presented , The relationships between the dehydration rate and the reaction temperature and concentration of H_2SO_4 catalyst have been investigated .

探讨了PTA质量、EG/PTA摩尔比、酯化温度、酯化压力、生产负荷和缩聚真空度等因素对聚酯切片中二甘醇（DEG）含量的影响。

The effects of the factors , such as PTA quality , EG / PTA mol ratio , esterification temperature and pressure , production load and polycondensation vacuum etc. , on diglycol ( DEG ) content in polyester chips were discussed .

聚酯生产中，生产原料、生产负荷、工艺参数等因素的变化，均有可能对成品中二甘醇（DEG）的含量造成影响，如控制不当，会严重影响纤维的染色均匀性。

In the polyester production process , the change of production raw material , production load , technology parameters may have effect on the DEG content in the product . If the DEG content is not control well , it will have serious effect on fiber dyeing evenness .

螯合型二甘醇钛酸酯的合成及其催化性能研究

Studies on Synthesis and Catalytic Activity of Diethylene Glycol Chelated Titanate

介绍了由二甘醇为原料制备1，4-二氧六环的工艺，二甘醇脱水反应采用沸石型催化剂，通过加入共沸剂的方法分离反应产物。

This paper introduces synthesis technique of 1,4-dioxane from diethylene glycol .

混合单元苯羧酸二甘醇酯增塑剂的合成研究

Studies on Synthesis of mixed diethylene glycol dibenzoate , a plasticizer