News Details
Low volatile plasticizer
2017-12-23 11:38:38
Low volatile plasticizer
The value of low volatile plasticizer is to reduce the emissions of plasticizers during processing. Low volatile plasticizers usually extend the life of soft PVC products, because the main performance damage of this product is due to loss of plasticizers.
The volatility of the plasticizer decreases with the increase of the molecular weight of the plasticizer. Compared with the similar DEHP formula, the processing quality of DINP is less than half of the DEHP, and the loss of the DIDP formula is about 1/3 of the DEHP formula.
For automotive applications, volatility is defined relative to the fogging test method. The plasticizer used first is DIDP orstraight chain plasticizer L9P and L911P, because these products are qualified in many volatile tests. The wire and cable sheath is another use for the use of low volatile plasticizers.
In general, these low volatile plasticizers must meet the requirements of retaining tensile strength and elongation at break after high temperature accelerated aging test. Although DINP and DIDP can well meet the requirements of many sheath and cryogenic insulation, volatile or even lower plasticizers must be used to achieve stricter ULTHHN building wire insulation standards.
In this regard, the mixture of TOTM and TINTM or these benzoic acid esters with higher relative molecular mass of o-benzoic acid two L11P and DTDP can meet the requirements, while those based on o-benzoic acid two formate can not be qualified.
The molecular formula of benzotriate (Trimellitate) is C6H3 (COOR) 3 and R is alkyl. Industrial products are usually colorless or yellow transparent liquids.
Benzoic acid ester has excellent high and low temperature properties, low evaporation at high temperature, low coking capacity, and good compatibility with various additives. It is an ideal base oil for synthesizing high temperature chain oil, synthesizing high viscosity air compressor oil and high temperature grease.
Phthalic acid esters two, also known as phthalates, abbreviated PAEs, is referred to as the formation of the adjacent benzene two formic acid ester. (in short, one of the plasticizers), when used as plastic plasticizers, generally refers to esters of phthalic acid and 4~15 carbon alcohols. Among them, two octyl phthalate is the most important variety. Phthalate two formate is a class of chemicals that can play a softening role and can also interfere with the endocrine system.
Phthalate two formate is mainly used in PVC material, which makes PVC from hard plastic to elastic plastic and plays the role of plasticizer. It is widely used in toys, food packaging materials, medical blood bag and hose, vinyl flooring and wallpaper, cleaning agents, lubricants, personal care products (such as nail polish, hair spray, soap and shampoo) hundreds of products, but there is a serious health hazard.
Phthalate two formate is generally a viscous liquid with low volatility. It has special odor, insoluble in water and low toxicity. Dissolve in most organic solution. Phthalate two formate pH standard solution (temperature at 25, ph=4.008).
Physical and chemical properties of two octyl terephthalate (plasticizer DOTP)
Appearance: transparent and colorless liquid
Boiling point: 400 degrees centigrade
Density: 0.984
Melting point: 30-34 degrees centigrade
Flash point: 238 degrees centigrade
Refractive index: 1.489-1.491
Flash point centigrade 210
Water is less than or equal to 0.03
Acid value is less than 0.1 mgKOH/g
The refractive index is greater than or equal to 1.4900 (20 C)
Color = (platinum cobalt) 30
The ester content% (chromatography) more than 99.5
Density (20 C) g/cm3 0.981-0.985
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.
The detection method of phthalate two formate has been very mature, and the testing standards have been issued both at home and abroad. The gas chromatography mass spectrometry (Gas Chromatograph-Mass Spectrometer) was used to detect the gas chromatography-mass spectrometry (GC / MS) after extraction of organic solvents.
The main testing standards are:
EN 14372 child product safety requirements and testing methods (European standard, Soxhlet extraction)
EN 15777 textiles. Test method for phthalic acid ester (European standard, Soxhlet extraction)
Standard operating procedure for CPSC-CH-C1001-09.3 phthalate two formate test standard (United States standard, dissolution solidification method)
Determination of phthalate esters in Health Canada Method C34 polyvinyl chloride products (Canadian standard, dissolution method)
GB/T 22048 determination of phthalate plasticizers in polyvinyl chloride plastics of toys and children's articles (Chinese standard, Soxhlet extraction)
Operation attention: the operator should undergo special training and strictly observe the operating rules. Operation disposal should be carried out in places with local ventilation or comprehensive ventilation and ventilation facilities. Avoid eye contact with skin, avoid inhaling steam. Stay away from fire, heat, and smoking in the workplace. The use of explosion-proof ventilation systems and equipment. If the tank is needed, the flow rate should be controlled and the grounding device is used to prevent the accumulation of static electricity. Avoid contact with an oxidant, such as an oxidant. Light load should be loaded lightly to prevent the damage of packaging and container. The empty container may remain harmful. Wash your hands after use, and prohibit eating in the workplace. Equipped with the corresponding variety and quantity of fire equipment and leakage emergency treatment equipment.
Store in a cool, ventilated storeroom. The temperature should not exceed 37 degrees C. It should be stored separately with oxidant and edible chemicals, and avoid mixed storage. Keep the container seal. Stay away from fire and heat. The storeroom must be equipped with lightning arresters. The air exhausting system should be equipped with a grounding device that guides the static electricity. Using explosion-proof lighting, ventilation setting. It is forbidden to use equipment and tools that easily generate sparks. The storage area should be equipped with leakage emergency treatment equipment and suitable collection materials.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
The value of low volatile plasticizer is to reduce the emissions of plasticizers during processing. Low volatile plasticizers usually extend the life of soft PVC products, because the main performance damage of this product is due to loss of plasticizers.
The volatility of the plasticizer decreases with the increase of the molecular weight of the plasticizer. Compared with the similar DEHP formula, the processing quality of DINP is less than half of the DEHP, and the loss of the DIDP formula is about 1/3 of the DEHP formula.
For automotive applications, volatility is defined relative to the fogging test method. The plasticizer used first is DIDP orstraight chain plasticizer L9P and L911P, because these products are qualified in many volatile tests. The wire and cable sheath is another use for the use of low volatile plasticizers.
In general, these low volatile plasticizers must meet the requirements of retaining tensile strength and elongation at break after high temperature accelerated aging test. Although DINP and DIDP can well meet the requirements of many sheath and cryogenic insulation, volatile or even lower plasticizers must be used to achieve stricter ULTHHN building wire insulation standards.
In this regard, the mixture of TOTM and TINTM or these benzoic acid esters with higher relative molecular mass of o-benzoic acid two L11P and DTDP can meet the requirements, while those based on o-benzoic acid two formate can not be qualified.
The molecular formula of benzotriate (Trimellitate) is C6H3 (COOR) 3 and R is alkyl. Industrial products are usually colorless or yellow transparent liquids.
Benzoic acid ester has excellent high and low temperature properties, low evaporation at high temperature, low coking capacity, and good compatibility with various additives. It is an ideal base oil for synthesizing high temperature chain oil, synthesizing high viscosity air compressor oil and high temperature grease.
Phthalic acid esters two, also known as phthalates, abbreviated PAEs, is referred to as the formation of the adjacent benzene two formic acid ester. (in short, one of the plasticizers), when used as plastic plasticizers, generally refers to esters of phthalic acid and 4~15 carbon alcohols. Among them, two octyl phthalate is the most important variety. Phthalate two formate is a class of chemicals that can play a softening role and can also interfere with the endocrine system.
Phthalate two formate is mainly used in PVC material, which makes PVC from hard plastic to elastic plastic and plays the role of plasticizer. It is widely used in toys, food packaging materials, medical blood bag and hose, vinyl flooring and wallpaper, cleaning agents, lubricants, personal care products (such as nail polish, hair spray, soap and shampoo) hundreds of products, but there is a serious health hazard.
Phthalate two formate is generally a viscous liquid with low volatility. It has special odor, insoluble in water and low toxicity. Dissolve in most organic solution. Phthalate two formate pH standard solution (temperature at 25, ph=4.008).
Physical and chemical properties of two octyl terephthalate (plasticizer DOTP)
Appearance: transparent and colorless liquid
Boiling point: 400 degrees centigrade
Density: 0.984
Melting point: 30-34 degrees centigrade
Flash point: 238 degrees centigrade
Refractive index: 1.489-1.491
Flash point centigrade 210
Water is less than or equal to 0.03
Acid value is less than 0.1 mgKOH/g
The refractive index is greater than or equal to 1.4900 (20 C)
Color = (platinum cobalt) 30
The ester content% (chromatography) more than 99.5
Density (20 C) g/cm3 0.981-0.985
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.
The detection method of phthalate two formate has been very mature, and the testing standards have been issued both at home and abroad. The gas chromatography mass spectrometry (Gas Chromatograph-Mass Spectrometer) was used to detect the gas chromatography-mass spectrometry (GC / MS) after extraction of organic solvents.
The main testing standards are:
EN 14372 child product safety requirements and testing methods (European standard, Soxhlet extraction)
EN 15777 textiles. Test method for phthalic acid ester (European standard, Soxhlet extraction)
Standard operating procedure for CPSC-CH-C1001-09.3 phthalate two formate test standard (United States standard, dissolution solidification method)
Determination of phthalate esters in Health Canada Method C34 polyvinyl chloride products (Canadian standard, dissolution method)
GB/T 22048 determination of phthalate plasticizers in polyvinyl chloride plastics of toys and children's articles (Chinese standard, Soxhlet extraction)
Operation attention: the operator should undergo special training and strictly observe the operating rules. Operation disposal should be carried out in places with local ventilation or comprehensive ventilation and ventilation facilities. Avoid eye contact with skin, avoid inhaling steam. Stay away from fire, heat, and smoking in the workplace. The use of explosion-proof ventilation systems and equipment. If the tank is needed, the flow rate should be controlled and the grounding device is used to prevent the accumulation of static electricity. Avoid contact with an oxidant, such as an oxidant. Light load should be loaded lightly to prevent the damage of packaging and container. The empty container may remain harmful. Wash your hands after use, and prohibit eating in the workplace. Equipped with the corresponding variety and quantity of fire equipment and leakage emergency treatment equipment.
Store in a cool, ventilated storeroom. The temperature should not exceed 37 degrees C. It should be stored separately with oxidant and edible chemicals, and avoid mixed storage. Keep the container seal. Stay away from fire and heat. The storeroom must be equipped with lightning arresters. The air exhausting system should be equipped with a grounding device that guides the static electricity. Using explosion-proof lighting, ventilation setting. It is forbidden to use equipment and tools that easily generate sparks. The storage area should be equipped with leakage emergency treatment equipment and suitable collection materials.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
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