News Details
Ionic liquid plasticizer
2017-12-13 10:38:20
Ionic liquid plasticizer (RTIL), also known as room temperature molten salt, ionic liquid plasticizer is composed of ions at room temperature and adjacent temperature, which are liquid organic liquids near room temperature.
The melting point of the ionic liquid plasticizer RTIL is below 100 centigrade, all of the salts of organic cations and organic or inorganic anions. Lin Xi Hou et al. Used six fluoro phosphoric acid 1 butylbase -3 methyl imidazole and six fluoro phosphoric acid 1- to have plasticized PVC paste resin respectively, and the results were remarkable.
Ionic liquids (or ionic liquids) are liquids that are all composed of ions, such as KCI at high temperature, KOH in liquid state, and they are ionic liquids at that time. A substance by ion liquid at or near room temperature, called room temperature ionic liquid, room temperature molten salt (room temperature ionic liquids are often accompanied by the existence of hydrogen bonds, defined as room temperature molten salt with a little reluctance), organic ionic liquid, there is no unified name, but tend to be referred to as ionic liquids.
In ionic compounds, the interaction force between yin and Yang is Coulomb force, which is related to the number and radius of anion and cation. The smaller the ionic radius is, the smaller the melting force is, the lower the melting point of the ionic compound is. The ions and yang ions of some ionic compounds have a large volume and loose structure, which leads to the low force between them, so that the melting point is close to the room temperature.
The history of ionic liquids can be traced back to 1914, when Walden reported the synthesis of (EtNH2) + HNO3- (the melting point of 12 degrees C). This substance is produced by the reaction of concentrated nitric acid and ethylamine. However, because of its instability in the air, it is easy to explode. Its discovery did not arouse interest at that time. This is the earliest ionic liquid. In general, the melting of an ionic compound into a liquid requires a very high temperature to overcome the binding of the ion bond, the state of which is called molten salt. The ionic bond in the ionic compound weakens with the increase of the cation radius, and the melting point decreases.
For the vast majority of substances, the melting point of the mixture is lower than the melting point of the pure substance. For example, the melting point of NaCl is 803 C, and the melting point of the mixed system consisting of 50%LICI-50%AICl3 (mole fraction) is only 144 degrees C. If we further increase the asymmetry of volume and structure of cation or anion and weaken the interaction force between anion and cation, we can get liquid ionic compounds at room temperature.
According to this principle, in 1951 F.H.Hurley and T.P. Wiler first synthesized ionic liquids that were liquid state at ambient temperature. The cation they choose is N- ethyl pyridine, the ionic liquid synthesized is a mixture of bromoethyl pyridinium chloride and aluminum chloride (the ratio of aluminum chloride to ethyl pyridinium bromide is 1:2).
However, the liquid temperature range of the ionic liquid is relatively narrow, and the aluminum chloride ionic liquid will release hydrogen chloride when it meets water, which will stimulate the skin. Until 1976, when Colorado used AICl3/[N-EtPy]Cl as electrolyte in Robert State University, it was found that the room temperature ionic liquid was a good electrolyte, mixed with organic matter, without protons, and had wide electrochemical window. In 1992, Wilkes prepared 1- methyl -3- ethyl imidazole as the cation to form 1- methyl -3- ethyl imidazole chloride. When the mole fraction was 50% AICl3, its melting point reached 8 degrees. After this, the research on the application of ionic liquids has been widely carried out.
The basic information of two octyl terephthalate (plasticizer DOTP)
Chinese Name: two octyl terephthalate
Synonyms: two Chinese terephthalate (2- ethylhexyl) ester; dioctyl terephthalate two; terephthalic acid two 1,4- benzene carboxylic acid isooctyl ester; two bis (2- ethylhexyl) ester; terephthalic acid two (2- ethylhexyl) ester; dioctyl terephthalate (DOTP); two double 2= ethylhexyl terephthalate; bis (2- ethylhexyl) terephthalic acid, plasticizer DOTP
English Name: Dioctyl terephthalate
English synonyms are: Di- (2-Ethylhexyl) Terephthalate; Di (2Ethylhexyl) Terephthalate; Kodaflexdotp; Terephthalicacid, Bis (2-Ethylhexyl) Ester; Bis;; ";"
CAS: 6422-86-2
Molecular formula: C24H38O4
Molecular weight: 390.56
EINECS: 229-176
Use of two octyl terephthalate (plasticizer DOTP)
1.DOTP has good electrical and thermal properties. It can be used to replace DOP in the sheath of PVC plastic wire and can also be used in the production of artificial leather membrane. In addition, with excellent compatibility, terephthalic acid ester is two PVC acrylonitrile derivatives plastic plasticizer, plasticizer, plasticizer, polyvinyl butyral nitrile rubber plasticizer, plasticizer for cellulose nitrate. The improvement of the product and plays the role of hardness and deformation, can be used as softener in NBR, chloroprene rubber, EPDM rubber and other products three. Especially for cable material, it has good plasticizing effect and low volatility. It is widely used in various products that require heat resistance and high insulation. It is an ideal plasticizer for producing 70 PVC cable material and other volatile resistant products.
2.DOTP is used for the PVC products in the car, which can solve the fog problem of the glass window. DOTP is also used for high quality lubricants or lubricant additives furniture and interior decoration paint, and precision instruments, nitro varnish additives, paper softener, biaxially oriented polyester amide membrane film, plastic bags and other crafts, plasma storage.
3. because the linear molecular structure of DOTP is similar to DOS and DOA, its cold resistance is also better.
The volume resistivity of 4.DOTP is 10-20 times higher than that of DOP, and its mobility is excellent.
5., because DOTP does not contain o-phthalate two formate, it is not an environmental friendly plasticizer in the range of 16 16 kinds of plasticizers containing o-phthalic acid in the European Union and other countries.
Ionic liquids are salts that are liquid at room temperature or near room temperature, which are composed entirely of yin and yang ions, also known as low temperature molten salts. The main reason for the low melting point of ionic liquids as ionic compounds is that the asymmetric accumulation of some ions in their structures causes the irregular accumulation of ions into crystals. It is generally composed of organic cations and inorganic or organic anions. The common cations are quaternary ammonium salt, Ji Linyan ion, imidazolium salt and pyrrole salt ions, etc. the anions contain halogen ions, tetrafluoro boron acid ions, six fluorophosphate ions and so on.
The ionic liquids are mainly composed of imidazolium cation, and the anions are mainly halogen ions and other inorganic acid ions, such as tetrafluoroborate. But in recent years, a series of new ionic liquids have been synthesized.
Because ionic liquids have many advantages that traditional solvents do not match, and they are used as green solvents in organic and polymer synthesis, more and more chemists have paid attention to ionic liquids.
A wide variety of ionic liquids, changing the different combinations of cations and anions, can be designed to produce different ionic liquids. There are two basic methods for the synthesis of ionic liquids: direct synthesis and two step synthesis.
Through the synthesis of ionic liquids, such as acid-base neutralization reaction or quaternary amination, the operation is economical and simple, without by-products, and the product is easily purified. A series of tetrafluoroborate ionic liquids with different cations were synthesized by Hlrao and other acid base neutralization methods. In addition, a variety of ionic liquids can be prepared by quaternary amination, such as halogenated 1- alkyl 3- methyl imidazoles, halogenated pyridinium salts, and so on.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
The melting point of the ionic liquid plasticizer RTIL is below 100 centigrade, all of the salts of organic cations and organic or inorganic anions. Lin Xi Hou et al. Used six fluoro phosphoric acid 1 butylbase -3 methyl imidazole and six fluoro phosphoric acid 1- to have plasticized PVC paste resin respectively, and the results were remarkable.
Ionic liquids (or ionic liquids) are liquids that are all composed of ions, such as KCI at high temperature, KOH in liquid state, and they are ionic liquids at that time. A substance by ion liquid at or near room temperature, called room temperature ionic liquid, room temperature molten salt (room temperature ionic liquids are often accompanied by the existence of hydrogen bonds, defined as room temperature molten salt with a little reluctance), organic ionic liquid, there is no unified name, but tend to be referred to as ionic liquids.
In ionic compounds, the interaction force between yin and Yang is Coulomb force, which is related to the number and radius of anion and cation. The smaller the ionic radius is, the smaller the melting force is, the lower the melting point of the ionic compound is. The ions and yang ions of some ionic compounds have a large volume and loose structure, which leads to the low force between them, so that the melting point is close to the room temperature.
The history of ionic liquids can be traced back to 1914, when Walden reported the synthesis of (EtNH2) + HNO3- (the melting point of 12 degrees C). This substance is produced by the reaction of concentrated nitric acid and ethylamine. However, because of its instability in the air, it is easy to explode. Its discovery did not arouse interest at that time. This is the earliest ionic liquid. In general, the melting of an ionic compound into a liquid requires a very high temperature to overcome the binding of the ion bond, the state of which is called molten salt. The ionic bond in the ionic compound weakens with the increase of the cation radius, and the melting point decreases.
For the vast majority of substances, the melting point of the mixture is lower than the melting point of the pure substance. For example, the melting point of NaCl is 803 C, and the melting point of the mixed system consisting of 50%LICI-50%AICl3 (mole fraction) is only 144 degrees C. If we further increase the asymmetry of volume and structure of cation or anion and weaken the interaction force between anion and cation, we can get liquid ionic compounds at room temperature.
According to this principle, in 1951 F.H.Hurley and T.P. Wiler first synthesized ionic liquids that were liquid state at ambient temperature. The cation they choose is N- ethyl pyridine, the ionic liquid synthesized is a mixture of bromoethyl pyridinium chloride and aluminum chloride (the ratio of aluminum chloride to ethyl pyridinium bromide is 1:2).
However, the liquid temperature range of the ionic liquid is relatively narrow, and the aluminum chloride ionic liquid will release hydrogen chloride when it meets water, which will stimulate the skin. Until 1976, when Colorado used AICl3/[N-EtPy]Cl as electrolyte in Robert State University, it was found that the room temperature ionic liquid was a good electrolyte, mixed with organic matter, without protons, and had wide electrochemical window. In 1992, Wilkes prepared 1- methyl -3- ethyl imidazole as the cation to form 1- methyl -3- ethyl imidazole chloride. When the mole fraction was 50% AICl3, its melting point reached 8 degrees. After this, the research on the application of ionic liquids has been widely carried out.
The basic information of two octyl terephthalate (plasticizer DOTP)
Chinese Name: two octyl terephthalate
Synonyms: two Chinese terephthalate (2- ethylhexyl) ester; dioctyl terephthalate two; terephthalic acid two 1,4- benzene carboxylic acid isooctyl ester; two bis (2- ethylhexyl) ester; terephthalic acid two (2- ethylhexyl) ester; dioctyl terephthalate (DOTP); two double 2= ethylhexyl terephthalate; bis (2- ethylhexyl) terephthalic acid, plasticizer DOTP
English Name: Dioctyl terephthalate
English synonyms are: Di- (2-Ethylhexyl) Terephthalate; Di (2Ethylhexyl) Terephthalate; Kodaflexdotp; Terephthalicacid, Bis (2-Ethylhexyl) Ester; Bis;; ";"
CAS: 6422-86-2
Molecular formula: C24H38O4
Molecular weight: 390.56
EINECS: 229-176
Use of two octyl terephthalate (plasticizer DOTP)
1.DOTP has good electrical and thermal properties. It can be used to replace DOP in the sheath of PVC plastic wire and can also be used in the production of artificial leather membrane. In addition, with excellent compatibility, terephthalic acid ester is two PVC acrylonitrile derivatives plastic plasticizer, plasticizer, plasticizer, polyvinyl butyral nitrile rubber plasticizer, plasticizer for cellulose nitrate. The improvement of the product and plays the role of hardness and deformation, can be used as softener in NBR, chloroprene rubber, EPDM rubber and other products three. Especially for cable material, it has good plasticizing effect and low volatility. It is widely used in various products that require heat resistance and high insulation. It is an ideal plasticizer for producing 70 PVC cable material and other volatile resistant products.
2.DOTP is used for the PVC products in the car, which can solve the fog problem of the glass window. DOTP is also used for high quality lubricants or lubricant additives furniture and interior decoration paint, and precision instruments, nitro varnish additives, paper softener, biaxially oriented polyester amide membrane film, plastic bags and other crafts, plasma storage.
3. because the linear molecular structure of DOTP is similar to DOS and DOA, its cold resistance is also better.
The volume resistivity of 4.DOTP is 10-20 times higher than that of DOP, and its mobility is excellent.
5., because DOTP does not contain o-phthalate two formate, it is not an environmental friendly plasticizer in the range of 16 16 kinds of plasticizers containing o-phthalic acid in the European Union and other countries.
Ionic liquids are salts that are liquid at room temperature or near room temperature, which are composed entirely of yin and yang ions, also known as low temperature molten salts. The main reason for the low melting point of ionic liquids as ionic compounds is that the asymmetric accumulation of some ions in their structures causes the irregular accumulation of ions into crystals. It is generally composed of organic cations and inorganic or organic anions. The common cations are quaternary ammonium salt, Ji Linyan ion, imidazolium salt and pyrrole salt ions, etc. the anions contain halogen ions, tetrafluoro boron acid ions, six fluorophosphate ions and so on.
The ionic liquids are mainly composed of imidazolium cation, and the anions are mainly halogen ions and other inorganic acid ions, such as tetrafluoroborate. But in recent years, a series of new ionic liquids have been synthesized.
Because ionic liquids have many advantages that traditional solvents do not match, and they are used as green solvents in organic and polymer synthesis, more and more chemists have paid attention to ionic liquids.
A wide variety of ionic liquids, changing the different combinations of cations and anions, can be designed to produce different ionic liquids. There are two basic methods for the synthesis of ionic liquids: direct synthesis and two step synthesis.
Through the synthesis of ionic liquids, such as acid-base neutralization reaction or quaternary amination, the operation is economical and simple, without by-products, and the product is easily purified. A series of tetrafluoroborate ionic liquids with different cations were synthesized by Hlrao and other acid base neutralization methods. In addition, a variety of ionic liquids can be prepared by quaternary amination, such as halogenated 1- alkyl 3- methyl imidazoles, halogenated pyridinium salts, and so on.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
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