News Details
Plasticizer plasticizing efficiency
2017-12-8 22:59:39
Plasticizer plasticizing efficiency
The properties of plasticizers mainly include plasticizers, plasticizers, compatibility, cold resistance, durability, heat resistance, insulation, flame retardancy, and hygiene.
The plasticity of plasticizer on the plasticizing capacity of the polymer or the effect of plasticizing effect is a relative concept. Plasticizer plasticizing efficiency is generally evaluated by changing the amount of plasticizing dose required for quantitative flexibility index. The less plasticizer dosage, the higher plasticizing efficiency.
The plasticizer of general molecular weight is higher than that of high molecular weight plasticizer, and the plasticizing efficiency of PVC is higher than that of high molecular weight plasticizer. With increasing polarity of plasticizer, the degree of alkyl branching and the increase of aromatic ring structure will decrease the plasticizing efficiency.
The order of plasticizing efficiency of commonly used plasticizers is: DBS>DBP>DOS>DOA>DOP>DIOP>M-50>TCP>PCl-50. Compatibility refers to the compatibility of plasticizers and polymers, and the compatibility of the same plasticizers to different polar polymers is different.
The order of the compatibility of plasticizers to PVC is DBS>DBP>DOP>DIOP>DNP>ED3>DOA>DOS> chlorinated paraffin. Cold resistance refers to the low temperature resistance of plasticizers.
Increased cold tolerance plasticizer and its structure, methylene (CH2) aliphatic acid ester cold two yuan as the main body of the best, is one of the most commonly used cold resistant plasticizer, and containing cyclic and branched plasticizer for polymer in low temperature and the cold resistance movement difficulties excellent.
The cold resistance sequence of commonly used plasticizers is: DOS>DOZ>DOA>ED3>DBP>DOP>DIOP>DIDP>DNP>M-50>TCP. Durability refers to the ability of plasticizers to exist in the plasticity of the plasticized products. Mainly including resistance to mobility, resistance to extractable and volatile and so on.
The mobility of plasticizers includes two aspects: one is that the plasticizer exudates from the interior of the product to the outer surface; and the two is the transfer of the plasticizer to its contact solid. The migration of plasticizers is related to their compatibility, and the poorer the compatibility, the greater the mobility. In addition, large molecular weight, chain or ring structure plasticizers have good mobility resistance.
The resistance to pumping refers to the tendency of the plasticizer to diffuse into the liquid medium that is in contact with it. The medium is mainly water, solvent, detergent and lubricating oil.
Two octyl terephthalate (plasticizer DOTP) raw materials are generally synthesized from the process route of terephthalic acid or two methyl terephthalate as raw material.
Safety data for export goods of two octyl terephthalate (plasticizer DOTP)
CAS No.:6422-86-2
State of the goods: export by general goods.
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.
In terms of oil resistance and solvent resistance, nonplasticizer with larger proportion of nonpolar alkyl has poor resistance to extraction, and its resistance to extraction is good. The resistance to water is contrary to the above. Polyester is a plasticizer with excellent resistance to extraction.
The tendency to spread from the surface of the product to the air when the volatile index plasticizer is heated. The volatility of plasticizers is related to their molecular weight, and the smaller the general molecular weight, the greater the volatility.
From the point of view of molecular structure, the structure of straight chain alkyl is better than that of branched chain alkyl structure. The plasticizer containing ring and other large volume groups has good volatility resistance. The plasticizers, such as polyester, epoxy, DIOP, TCP and pentaerythritol, have good volatility.
The insulation of the plasticizer is not as good as the PVC resin. With the increase of the plasticizer, the electrical insulation of PVC decreases. When the plasticizer is used in PVC insulation, it should be paid attention to its insulation. The insulating order of the commonly used plasticizers is: TCP>DNP>DOP>M-50>ED3>DOS>DBP>DOA.
Health refers to the toxicity of plasticizers, plasticizers are most non-toxic or low toxic epoxy and citric acid ester as a nontoxic plasticizer, two formic acid ester and carboxylic acid two yuan low toxicity of plasticizer, but DOP, DOA are carcinogenic; phosphate plasticizers are toxic, only two phosphoric acid benzene 2- ethylhexyl chloride paraffin is the exception; toxic plasticizers.
Phosphoric acid esters and chlorinated paraffins are flame retardant plasticizers, and their flame retardancy is TCP>TPP>TOP>DPOP.
The addition of a plasticizer in PVC resin, with larger proportion, the more soft plastic products: when the amount is less than 5%, hard plastic products; when the dosage was 15% ~ 25%, plastic products for the semi hard; when the amount is more than 25%, plastic products for soft; plasticizer content from 5% to 15% when there will be an antiplastic phenomenon, affecting the quality of the products in the preparation, should try to prevent.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
The properties of plasticizers mainly include plasticizers, plasticizers, compatibility, cold resistance, durability, heat resistance, insulation, flame retardancy, and hygiene.
The plasticity of plasticizer on the plasticizing capacity of the polymer or the effect of plasticizing effect is a relative concept. Plasticizer plasticizing efficiency is generally evaluated by changing the amount of plasticizing dose required for quantitative flexibility index. The less plasticizer dosage, the higher plasticizing efficiency.
The plasticizer of general molecular weight is higher than that of high molecular weight plasticizer, and the plasticizing efficiency of PVC is higher than that of high molecular weight plasticizer. With increasing polarity of plasticizer, the degree of alkyl branching and the increase of aromatic ring structure will decrease the plasticizing efficiency.
The order of plasticizing efficiency of commonly used plasticizers is: DBS>DBP>DOS>DOA>DOP>DIOP>M-50>TCP>PCl-50. Compatibility refers to the compatibility of plasticizers and polymers, and the compatibility of the same plasticizers to different polar polymers is different.
The order of the compatibility of plasticizers to PVC is DBS>DBP>DOP>DIOP>DNP>ED3>DOA>DOS> chlorinated paraffin. Cold resistance refers to the low temperature resistance of plasticizers.
Increased cold tolerance plasticizer and its structure, methylene (CH2) aliphatic acid ester cold two yuan as the main body of the best, is one of the most commonly used cold resistant plasticizer, and containing cyclic and branched plasticizer for polymer in low temperature and the cold resistance movement difficulties excellent.
The cold resistance sequence of commonly used plasticizers is: DOS>DOZ>DOA>ED3>DBP>DOP>DIOP>DIDP>DNP>M-50>TCP. Durability refers to the ability of plasticizers to exist in the plasticity of the plasticized products. Mainly including resistance to mobility, resistance to extractable and volatile and so on.
The mobility of plasticizers includes two aspects: one is that the plasticizer exudates from the interior of the product to the outer surface; and the two is the transfer of the plasticizer to its contact solid. The migration of plasticizers is related to their compatibility, and the poorer the compatibility, the greater the mobility. In addition, large molecular weight, chain or ring structure plasticizers have good mobility resistance.
The resistance to pumping refers to the tendency of the plasticizer to diffuse into the liquid medium that is in contact with it. The medium is mainly water, solvent, detergent and lubricating oil.
Two octyl terephthalate (plasticizer DOTP) raw materials are generally synthesized from the process route of terephthalic acid or two methyl terephthalate as raw material.
Safety data for export goods of two octyl terephthalate (plasticizer DOTP)
CAS No.:6422-86-2
State of the goods: export by general goods.
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.
In terms of oil resistance and solvent resistance, nonplasticizer with larger proportion of nonpolar alkyl has poor resistance to extraction, and its resistance to extraction is good. The resistance to water is contrary to the above. Polyester is a plasticizer with excellent resistance to extraction.
The tendency to spread from the surface of the product to the air when the volatile index plasticizer is heated. The volatility of plasticizers is related to their molecular weight, and the smaller the general molecular weight, the greater the volatility.
From the point of view of molecular structure, the structure of straight chain alkyl is better than that of branched chain alkyl structure. The plasticizer containing ring and other large volume groups has good volatility resistance. The plasticizers, such as polyester, epoxy, DIOP, TCP and pentaerythritol, have good volatility.
The insulation of the plasticizer is not as good as the PVC resin. With the increase of the plasticizer, the electrical insulation of PVC decreases. When the plasticizer is used in PVC insulation, it should be paid attention to its insulation. The insulating order of the commonly used plasticizers is: TCP>DNP>DOP>M-50>ED3>DOS>DBP>DOA.
Health refers to the toxicity of plasticizers, plasticizers are most non-toxic or low toxic epoxy and citric acid ester as a nontoxic plasticizer, two formic acid ester and carboxylic acid two yuan low toxicity of plasticizer, but DOP, DOA are carcinogenic; phosphate plasticizers are toxic, only two phosphoric acid benzene 2- ethylhexyl chloride paraffin is the exception; toxic plasticizers.
Phosphoric acid esters and chlorinated paraffins are flame retardant plasticizers, and their flame retardancy is TCP>TPP>TOP>DPOP.
The addition of a plasticizer in PVC resin, with larger proportion, the more soft plastic products: when the amount is less than 5%, hard plastic products; when the dosage was 15% ~ 25%, plastic products for the semi hard; when the amount is more than 25%, plastic products for soft; plasticizer content from 5% to 15% when there will be an antiplastic phenomenon, affecting the quality of the products in the preparation, should try to prevent.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
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