News Details
Flame retardant for nitrogen cotton
2017-10-20 19:29:37
Flame retardant for nitrogen cotton
The flame retardant of nitrogen-containing cotton was synthesized with melamine and dimethyl phosphite as raw materials. By differential thermal testing show that the temperature to 800 ℃, the nitrogen with flame retardant cotton quality retention rate is still treated fabrics can reach more than 30%.
Was studied by single factor experiment, the nitrogen of cotton with flame retardant liquid dosage, pH, baking temperature and washing times on the effects of the flame retardant and the best application process conditions were determined: flame retardant, 400 g/L, catalyst MgCl2 10 g/L, the pH value of 3.5, the working liquid for 10 min, 2 no.2 rolling, 80 ℃ drying 3 min, 170 ℃ baking 3 min. Under the condition of the limit oxygen index (LOI) is 30.6, crease recovery Angle is 240.6 °. After 50 times standard washing limit oxygen index can still be reached 26.4, crease recovery Angle can reach 188.5 °, showed that the preparation of the finishing agent has good flame retardant performance and washing resistance.
Cotton fabric strong hygroscopicity, permeability is good, no static, wearing comfortable, favored by people. But the cotton fabric is a flammable fabrics, therefore, on the flame retardant finishing has become the focus of public life and The Times of the social security issue. containing halogen flame retardants for environmental protection has been gradually withdraw from the market [, at present, the commonly used nitrogen of cotton with flame retardants have four hydroxyl phosphonic chloride series (THPC), N - hydroxy methyl phosphate amide class (such as huntsman Pyrovatex CP conc., domestic, FRC CFR - 201-2, etc.) and annular phosphonic acid esters and other varieties, but the market on the washing resistance of common cotton flame retardant only Pyrovatex CP and THPC.
containing Pyrovatex CP need to use a lot of free formaldehyde crosslinking agent [8-10], and THPC P - C key to low key, easy to release the formaldehyde (11-12), therefore, development of new type flame retardant low formaldehyde or it is particularly important to research new application technology.
Materials: 28 x 60 twill pure cotton card. Medicine: melamine, softener, and scouring agent, etc. Are industrial products, 6 hydrate magnesium chloride and other chemical reagents.
Instruments: YG 815 - d - type I (B) vertical fabric flame retardant performance tester, JF - 3 type oxygen index apparatus, SHIRLEY elastic crease recovery tester, H10K - S arms universal material testing machine, Datacolor type 650 computer colour matching device, type SDT2960 DSC and TG thermal analyzer.
Triphenyl Phosphate (TPP)
Triphenyl Phosphatetpp-cas: 15-86-6
EINECS number: 204-112-2
Chinese Name: Triphenyl Phosphate
Chinese alias: phosphoric acid three phenyl ester; flame retardant TPP; TPP
English Name: Triphenyl Phosphate
English alias: Triphenyl Phosphate free of phenol; Triphenyl Phosphate (TPPa); Triphenyl Phosphate white XTL Phosphoric acid triphenyl ester; TPP
Molecular formula: C18H15O4P; OP (OC6H5) 3
Appearance and properties: white crystalline powder, odorless, slightly deliquescence
Molecular weight: 326.29
Steam pressure: 0.01kPa/20 ℃
The above is the product of the CAS, such as Triphenyl Phosphate tpp-cas: 15-86-6 other information please contact us!
Flame retardant TPP has many advantages, such as excellent transparency, softness, bacterial resistance, and water proof, grease-proof, good electric insulation, as well as good compatibility. Flame retardant TPP is mainly used as the flame-retardant plasticizer for cellulose resin, vinyl resin, natural rubber and synthetic rubber. And it may also be used as the flame-retardant plasticizer for glyceryl triacetate thin ester and film, rigid polyurethane foam, phenolic aldehyde resin, and PPO, etc.
Flame retardant TPP is a kind of halogen-free environment-friendly flame retardant with phosphorus element. Most of the products in the market are self-colored flaky crystal, our product is self-colored crystalline powder, and is more soluble in organic solvents. TPP is not soluble in water, but soluble in benzene, chloroform, ether and acetone, and slightly soluble in Z alcohol. Flame retardant TPP is nonflammable with slight aromatic odor and slight deliquescence. The fusion point is about 50 ℃, and fast melts to hoop-shape when heated. The lubricate effect is excellent, and it is often used as the flame retardant plasticize lubricant. What is more, it is used as the flame retardant for many plastics and resins, such as phenolic aldehyde resin, epoxy resin and so on.
Will bea certain amount of melamine, aldehydes, dimethyl phosphite, anhydrous ethanol to join with a mixer, thermometer, reflux condenser pipe of four flask, stirring after 20 min at room temperature, heating up to 55 ~ 60 ℃, using triethylamine to adjust pH value of 6 ~ 7, thermal reaction and turbidity measurement. When the turbidity is 30 ℃ to stop heating, rapid cooling to room temperature, add a certain amount, isobutanol for a quick flame retardants.
Flame retardant finishing process: finishing liquid impregnation 10 min - > two dip two rolling (rolling rate of more than 70%) and preliminary drying (80 ℃, 3 min) - > curing (3 min) to wash, rinse and dry.
Performance test: the determination of tensile strength and fracture elongation of fabric by GB/T 3923.1-1997 is used to measure the fracture strength. The combustion performance was determined by GB/T 545-1997 test vertical method of textile combustion performance. The oxygen index was determined according to GB/T 5454-1997 "test oxygen index method for textile combustion performance". The washing method is carried out according to aatcc124-2001, the surface appearance of fabric after repeated home washing.
Anti-wrinkle performance was determined according to the aatcc66-2003 "machine fabric crease recovery: reply Angle". Determination of ISO color gradation by computer colorimetric colorimeter; Infrared spectrum was tested by Fourier spectrometer (KBr method). Thermogravimetric analysis conducted on thermal analyzer, nitrogen atmosphere, gas flow 50 mL/mim, temperature 10 ℃ / min, powder sample of legal system, the temperature of the TGA test range of 30 ~ 900 ℃.
3. 319.82 cm-1 was the N - H telescopic vibration absorption peak in secondary amine, 1 553.00cm-1 was the N - H deformation vibration absorption peak in secondary amine. 2 963.13 cm-1 is the o-h telescopic vibration peak of chelated bond, 1 484.95 cm-1 is the CH2 - deformation vibration absorption peak; 1. 196.31 cm-1 is P O telescopic vibration absorption peak; 988.94 cm - 1 to P, O, C P, O stretching vibration absorption peak. In addition, the raw material of dimethyl phosphite P - about 400 cm - 1 2 H button in the stretching vibration absorption peak disappeared, 1 740 ~ 1 660 cm - 1 does not appear aldehyde strong absorption peak. And confirm receive the expected target compounds.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
The flame retardant of nitrogen-containing cotton was synthesized with melamine and dimethyl phosphite as raw materials. By differential thermal testing show that the temperature to 800 ℃, the nitrogen with flame retardant cotton quality retention rate is still treated fabrics can reach more than 30%.
Was studied by single factor experiment, the nitrogen of cotton with flame retardant liquid dosage, pH, baking temperature and washing times on the effects of the flame retardant and the best application process conditions were determined: flame retardant, 400 g/L, catalyst MgCl2 10 g/L, the pH value of 3.5, the working liquid for 10 min, 2 no.2 rolling, 80 ℃ drying 3 min, 170 ℃ baking 3 min. Under the condition of the limit oxygen index (LOI) is 30.6, crease recovery Angle is 240.6 °. After 50 times standard washing limit oxygen index can still be reached 26.4, crease recovery Angle can reach 188.5 °, showed that the preparation of the finishing agent has good flame retardant performance and washing resistance.
Cotton fabric strong hygroscopicity, permeability is good, no static, wearing comfortable, favored by people. But the cotton fabric is a flammable fabrics, therefore, on the flame retardant finishing has become the focus of public life and The Times of the social security issue. containing halogen flame retardants for environmental protection has been gradually withdraw from the market [, at present, the commonly used nitrogen of cotton with flame retardants have four hydroxyl phosphonic chloride series (THPC), N - hydroxy methyl phosphate amide class (such as huntsman Pyrovatex CP conc., domestic, FRC CFR - 201-2, etc.) and annular phosphonic acid esters and other varieties, but the market on the washing resistance of common cotton flame retardant only Pyrovatex CP and THPC.
containing Pyrovatex CP need to use a lot of free formaldehyde crosslinking agent [8-10], and THPC P - C key to low key, easy to release the formaldehyde (11-12), therefore, development of new type flame retardant low formaldehyde or it is particularly important to research new application technology.
Materials: 28 x 60 twill pure cotton card. Medicine: melamine, softener, and scouring agent, etc. Are industrial products, 6 hydrate magnesium chloride and other chemical reagents.
Instruments: YG 815 - d - type I (B) vertical fabric flame retardant performance tester, JF - 3 type oxygen index apparatus, SHIRLEY elastic crease recovery tester, H10K - S arms universal material testing machine, Datacolor type 650 computer colour matching device, type SDT2960 DSC and TG thermal analyzer.
Triphenyl Phosphate (TPP)
Triphenyl Phosphatetpp-cas: 15-86-6
EINECS number: 204-112-2
Chinese Name: Triphenyl Phosphate
Chinese alias: phosphoric acid three phenyl ester; flame retardant TPP; TPP
English Name: Triphenyl Phosphate
English alias: Triphenyl Phosphate free of phenol; Triphenyl Phosphate (TPPa); Triphenyl Phosphate white XTL Phosphoric acid triphenyl ester; TPP
Molecular formula: C18H15O4P; OP (OC6H5) 3
Appearance and properties: white crystalline powder, odorless, slightly deliquescence
Molecular weight: 326.29
Steam pressure: 0.01kPa/20 ℃
The above is the product of the CAS, such as Triphenyl Phosphate tpp-cas: 15-86-6 other information please contact us!
Flame retardant TPP has many advantages, such as excellent transparency, softness, bacterial resistance, and water proof, grease-proof, good electric insulation, as well as good compatibility. Flame retardant TPP is mainly used as the flame-retardant plasticizer for cellulose resin, vinyl resin, natural rubber and synthetic rubber. And it may also be used as the flame-retardant plasticizer for glyceryl triacetate thin ester and film, rigid polyurethane foam, phenolic aldehyde resin, and PPO, etc.
Flame retardant TPP is a kind of halogen-free environment-friendly flame retardant with phosphorus element. Most of the products in the market are self-colored flaky crystal, our product is self-colored crystalline powder, and is more soluble in organic solvents. TPP is not soluble in water, but soluble in benzene, chloroform, ether and acetone, and slightly soluble in Z alcohol. Flame retardant TPP is nonflammable with slight aromatic odor and slight deliquescence. The fusion point is about 50 ℃, and fast melts to hoop-shape when heated. The lubricate effect is excellent, and it is often used as the flame retardant plasticize lubricant. What is more, it is used as the flame retardant for many plastics and resins, such as phenolic aldehyde resin, epoxy resin and so on.
Will bea certain amount of melamine, aldehydes, dimethyl phosphite, anhydrous ethanol to join with a mixer, thermometer, reflux condenser pipe of four flask, stirring after 20 min at room temperature, heating up to 55 ~ 60 ℃, using triethylamine to adjust pH value of 6 ~ 7, thermal reaction and turbidity measurement. When the turbidity is 30 ℃ to stop heating, rapid cooling to room temperature, add a certain amount, isobutanol for a quick flame retardants.
Flame retardant finishing process: finishing liquid impregnation 10 min - > two dip two rolling (rolling rate of more than 70%) and preliminary drying (80 ℃, 3 min) - > curing (3 min) to wash, rinse and dry.
Performance test: the determination of tensile strength and fracture elongation of fabric by GB/T 3923.1-1997 is used to measure the fracture strength. The combustion performance was determined by GB/T 545-1997 test vertical method of textile combustion performance. The oxygen index was determined according to GB/T 5454-1997 "test oxygen index method for textile combustion performance". The washing method is carried out according to aatcc124-2001, the surface appearance of fabric after repeated home washing.
Anti-wrinkle performance was determined according to the aatcc66-2003 "machine fabric crease recovery: reply Angle". Determination of ISO color gradation by computer colorimetric colorimeter; Infrared spectrum was tested by Fourier spectrometer (KBr method). Thermogravimetric analysis conducted on thermal analyzer, nitrogen atmosphere, gas flow 50 mL/mim, temperature 10 ℃ / min, powder sample of legal system, the temperature of the TGA test range of 30 ~ 900 ℃.
3. 319.82 cm-1 was the N - H telescopic vibration absorption peak in secondary amine, 1 553.00cm-1 was the N - H deformation vibration absorption peak in secondary amine. 2 963.13 cm-1 is the o-h telescopic vibration peak of chelated bond, 1 484.95 cm-1 is the CH2 - deformation vibration absorption peak; 1. 196.31 cm-1 is P O telescopic vibration absorption peak; 988.94 cm - 1 to P, O, C P, O stretching vibration absorption peak. In addition, the raw material of dimethyl phosphite P - about 400 cm - 1 2 H button in the stretching vibration absorption peak disappeared, 1 740 ~ 1 660 cm - 1 does not appear aldehyde strong absorption peak. And confirm receive the expected target compounds.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
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