News Details
Formaldehyde-free flame retardant
2017-10-17 11:46:33
Formaldehyde-free flame retardant
At present, the durable flame retardant finishing of pure cotton fabric has two main techniques: the proban process of the flame retardant with tetrahydroxymethyl chloride (THPC) and the n-one hydroxymethyl. The process of pyrovatex cp is a flame retardant.
However, the two have formaldehyde problems in the process of sorting and taking. As international production sites and the implementation of the limitation of free formaldehyde content regulations on textiles, people increasingly attach importance to study low formaldehyde, formaldehyde-free flame retardant and crosslinking agent, but few research results in this field.
In this paper, epoxy chloropropane and phosphorus pentoxide and divinyl three amine as raw materials, containing hydroxyl group was synthesized under certain condition and phosphorus, nitrogen, chlorine formaldehyde-free flame retardants, studies the synthetic process conditions and formaldehyde-free flame retardants in crosslinking agent (sealed end waterborne polyurethane) to participate in the finishing of cotton fabric under the condition of process and the performance of the treated fabrics.
Test materials and instrumentation: 27. 8/27. 8 rex 236/197 root / 10 cm bleached cotton sheeting, 29. 2/29. 2 Tex 425/228 root / 10 cm red pure cotton khaki. Medicine: epoxy chloropropane, divinyl three amine, aluminium trichloride, catalyst a, magnesium chloride (all are pure chemicals), phosphorus pentoxide, softener (both for industrial products), sealing and base waterborne polyurethane crosslinking agent (including solid volume 27. Two percent, homemade. Instruments: the ft ir740 infrared spectrometer, jb90 one s digital display speed electric mixer, lfy~a01 vertical normal fabric flame retarder, lfy 1, 201d multi-functional fabric strength meter, wd. Type 5 full-automatic whitening meter, yg701n automatic washing machine.
The cycloether chemical with tri-element ring is active and is easy to open loop reaction under the catalytic action of aluminum chloride (1). According to the principle of the above reaction, the reaction conditions of the control of propylene oxide and phosphorus pentoxide can be obtained. 2. Hydroxypropyl ester [type (2)]. Phosphate sheet (1-~ 2. Hydroxypropyl ester and diethylenetriamine can produce a water-based polymer oligopolymer, which is the target product, under the action of catalyst a and strong heat.
Intermediates phosphate list (1 a chlorine _2 a hydroxy propyl) ester synthesis in a blender, thermometer and condenser of grinding mouth three flask (250 ml), and 37 g epoxy chloropropane and small amount of aluminium trichloride, and put in cold water, open the blender. Reduction method is used to batch add 30 g phosphorus pentoxide, its rate of canadians with reaction system temperature from surge advisable, stay after the phosphorus pentoxide cast, heating up to 9 o ℃, heat preservation 3 h for a quick reaction intermediates phosphate single (1 a chlorine _2 a hydroxy propyl) ester.
Tris (1,3-Dichloro-2-Propyl) Phosphate (Flame Retardant TDCPP)
(A Small Cabinet Loaded With 16 Tons), 1000KG / IB Bucket (A Small Cabinet Installed 18 Tons) Or 23 Tons (1, 3-Dichloro-2-Propyl) Phosphate (TDCPP) Packing: Net Weight 200KG / ISOTANK.
Tris (1,3-Dichloro-2-Propyl) Phosphate (Flame Retardant TDCPP) Use:
The Product Has A High Efficiency Flame Retardant, Low Volatility, High Thermal Stability, Water Resistance, Alkali Stable And Soluble In Most Organic Substances, Processing Performance, With Plastic, Moisture, Anti-Static, Anti-Pull, Anti-Compression Performance. Widely Used In Unsaturated Polyester, Polyurethane Foam, Epoxy Resin, Phenolic Resin, Rubber, Soft Polyvinyl Chloride, Synthetic Fibers And Other Plastics And Coatings At High Temperature Pyrolysis, Can Be Used As Emulsifier And Explosion-Proof Agent.
The target product is synthesized into three bottles of the intermediate with 25 g diethylenediamine and catalyst a, and then the flask is placed in the oil bath to open the agitator. Heat up to 110 ℃, thermal reaction 2 h, then cooled to 8 ℃ below o, add a certain amount of deionized water to need solid content, use a small amount of ammonia adjust the ph value to 7 ~ 8 of mixture, stirring 0. 5 h instant flame retardant.
Fabric flame retardant spray casting: directly spray flame retardant to the processed substrate, spray to the wet and dry naturally, 晎 dry. Impregnation method: will need to deal with base material soaked in flame retardants, belongs to the kind of fabric, as long as you are wet, dry or 晎 dry. Soak the wood for 6 to 12 hours. Leaching process: suitable for continuous production of bulk fabrics. Apply to paint or gelatine directly after water is dissolved, and a few impurities after dissolving can be removed or precipitated.
Japan's inspection method for flame retardant products
Washing resistance test (no. 1, fire hall, 21 February, 61)
Equipment of jis-l-1018 f-2: washing machine 5 times (l-5)
Household detergent 30g, cloth weight 400g
Process: washing 60 ℃ x 75 min - > dewatering 3 min to washing 15 min, 3 min to washing 15 min, dehydration, 3 min to air dry
Equipment of jis-l-1018 e-2: washing machine 5 times (d-5)
The fabric weight is 300 g
Washing 75min, removing liquid, washing 15min, removing liquid, washing 15min, defluid, air drying
Total vinyl chloride 3.78L perchloroethylene 3.78L total vinyl chloride 3.78L
Dry-cleaning detergent 79g
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
At present, the durable flame retardant finishing of pure cotton fabric has two main techniques: the proban process of the flame retardant with tetrahydroxymethyl chloride (THPC) and the n-one hydroxymethyl. The process of pyrovatex cp is a flame retardant.
However, the two have formaldehyde problems in the process of sorting and taking. As international production sites and the implementation of the limitation of free formaldehyde content regulations on textiles, people increasingly attach importance to study low formaldehyde, formaldehyde-free flame retardant and crosslinking agent, but few research results in this field.
In this paper, epoxy chloropropane and phosphorus pentoxide and divinyl three amine as raw materials, containing hydroxyl group was synthesized under certain condition and phosphorus, nitrogen, chlorine formaldehyde-free flame retardants, studies the synthetic process conditions and formaldehyde-free flame retardants in crosslinking agent (sealed end waterborne polyurethane) to participate in the finishing of cotton fabric under the condition of process and the performance of the treated fabrics.
Test materials and instrumentation: 27. 8/27. 8 rex 236/197 root / 10 cm bleached cotton sheeting, 29. 2/29. 2 Tex 425/228 root / 10 cm red pure cotton khaki. Medicine: epoxy chloropropane, divinyl three amine, aluminium trichloride, catalyst a, magnesium chloride (all are pure chemicals), phosphorus pentoxide, softener (both for industrial products), sealing and base waterborne polyurethane crosslinking agent (including solid volume 27. Two percent, homemade. Instruments: the ft ir740 infrared spectrometer, jb90 one s digital display speed electric mixer, lfy~a01 vertical normal fabric flame retarder, lfy 1, 201d multi-functional fabric strength meter, wd. Type 5 full-automatic whitening meter, yg701n automatic washing machine.
The cycloether chemical with tri-element ring is active and is easy to open loop reaction under the catalytic action of aluminum chloride (1). According to the principle of the above reaction, the reaction conditions of the control of propylene oxide and phosphorus pentoxide can be obtained. 2. Hydroxypropyl ester [type (2)]. Phosphate sheet (1-~ 2. Hydroxypropyl ester and diethylenetriamine can produce a water-based polymer oligopolymer, which is the target product, under the action of catalyst a and strong heat.
Intermediates phosphate list (1 a chlorine _2 a hydroxy propyl) ester synthesis in a blender, thermometer and condenser of grinding mouth three flask (250 ml), and 37 g epoxy chloropropane and small amount of aluminium trichloride, and put in cold water, open the blender. Reduction method is used to batch add 30 g phosphorus pentoxide, its rate of canadians with reaction system temperature from surge advisable, stay after the phosphorus pentoxide cast, heating up to 9 o ℃, heat preservation 3 h for a quick reaction intermediates phosphate single (1 a chlorine _2 a hydroxy propyl) ester.
Tris (1,3-Dichloro-2-Propyl) Phosphate (Flame Retardant TDCPP)
(A Small Cabinet Loaded With 16 Tons), 1000KG / IB Bucket (A Small Cabinet Installed 18 Tons) Or 23 Tons (1, 3-Dichloro-2-Propyl) Phosphate (TDCPP) Packing: Net Weight 200KG / ISOTANK.
Tris (1,3-Dichloro-2-Propyl) Phosphate (Flame Retardant TDCPP) Use:
The Product Has A High Efficiency Flame Retardant, Low Volatility, High Thermal Stability, Water Resistance, Alkali Stable And Soluble In Most Organic Substances, Processing Performance, With Plastic, Moisture, Anti-Static, Anti-Pull, Anti-Compression Performance. Widely Used In Unsaturated Polyester, Polyurethane Foam, Epoxy Resin, Phenolic Resin, Rubber, Soft Polyvinyl Chloride, Synthetic Fibers And Other Plastics And Coatings At High Temperature Pyrolysis, Can Be Used As Emulsifier And Explosion-Proof Agent.
The target product is synthesized into three bottles of the intermediate with 25 g diethylenediamine and catalyst a, and then the flask is placed in the oil bath to open the agitator. Heat up to 110 ℃, thermal reaction 2 h, then cooled to 8 ℃ below o, add a certain amount of deionized water to need solid content, use a small amount of ammonia adjust the ph value to 7 ~ 8 of mixture, stirring 0. 5 h instant flame retardant.
Fabric flame retardant spray casting: directly spray flame retardant to the processed substrate, spray to the wet and dry naturally, 晎 dry. Impregnation method: will need to deal with base material soaked in flame retardants, belongs to the kind of fabric, as long as you are wet, dry or 晎 dry. Soak the wood for 6 to 12 hours. Leaching process: suitable for continuous production of bulk fabrics. Apply to paint or gelatine directly after water is dissolved, and a few impurities after dissolving can be removed or precipitated.
Japan's inspection method for flame retardant products
Washing resistance test (no. 1, fire hall, 21 February, 61)
Equipment of jis-l-1018 f-2: washing machine 5 times (l-5)
Household detergent 30g, cloth weight 400g
Process: washing 60 ℃ x 75 min - > dewatering 3 min to washing 15 min, 3 min to washing 15 min, dehydration, 3 min to air dry
Equipment of jis-l-1018 e-2: washing machine 5 times (d-5)
The fabric weight is 300 g
Washing 75min, removing liquid, washing 15min, removing liquid, washing 15min, defluid, air drying
Total vinyl chloride 3.78L perchloroethylene 3.78L total vinyl chloride 3.78L
Dry-cleaning detergent 79g
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
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