Modified soybean aldehyde-free flame-retardant adhesive and preparation method thereof
A flame retardant adhesive and modification technology, applied in the field of modified soybean formaldehyde-free flame retardant adhesive and its preparation, can solve the problems of unsatisfactory flame retardant effect, fast drying time, high price, etc., and achieve good flame retardant effect , The effect of improving viscosity and low cost
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Embodiment 1
[0046] 1. Preparation of activated modified flame retardant
[0047] Add 30 parts of ammonium polyphosphate APP, 15 parts of melamine phosphate MP, 3 parts of sodium dodecylbenzenesulfonate, and 5 parts of sodium silicate in the high-speed mixer, and stir for 15 minutes, then add 65 parts of aluminum hydroxide, Stir for another 20 minutes until uniform, and the activated modified flame retardant is obtained;
[0048] 2. Preparation of modified soybean formaldehyde-free flame retardant adhesive
[0049] Add 100 parts of modified polyamide resins, 70 parts of water, 140 parts of defatted soy flour, 80 parts of activated modified flame retardants, 6 parts of water-based tackifier 880G, and 0.15 parts of polyethylene glycol in the reaction kettle successively. Stir at ~85°C for 2 hours until uniform, and the modified soybean formaldehyde-free flame-retardant rubber is prepared;
[0050] 3. Preparation of formaldehyde-free flame-retardant parquet
[0051] 1) Coat the modified so...
Embodiment 2
[0055] The production process of step 3 in embodiment 1 is unchanged, and the changes are as follows:
[0056] 1. Preparation of activated modified flame retardant
[0057] Add 35 parts of ammonium polyphosphate APP, 15 parts of melamine phosphate MP, 2.5 parts of sodium dodecylbenzenesulfonate, and 6 parts of sodium silicate in the high-speed mixer, and stir for 15 minutes, then add 75 parts of aluminum hydroxide, Stir for another 20 minutes until uniform, and the activated modified flame retardant is obtained;
[0058] 2. Preparation of modified soybean formaldehyde-free flame retardant adhesive
[0059] Add 100 parts of modified polyamide resins, 65 parts of water, 130 parts of defatted soy flour, 110 parts of activated modified flame retardants, 7 parts of water-based tackifier 880G, and 0.15 parts of polyethylene glycol in the reactor. Stir at ~85°C for 2 hours until uniform, and the modified soybean formaldehyde-free flame-retardant rubber is prepared.
Embodiment 3
[0061] Step one and two production processes in embodiment 1 are all unchanged, and change part is as follows:
[0062] 3. Preparation of formaldehyde-free flame-retardant parquet
[0063] 1) Coat the modified soybean formaldehyde-free flame-retardant glue prepared in step 2 on the surface of eucalyptus veneer with a thickness of 2.2mm, and the coating amount is 250g / m 2 , according to the crisscross formation of each layer of multi-layer plywood for solid wood composite flooring, after cold pressing and hot pressing, it is made into a flame-retardant multi-layer substrate layer. The process conditions are cold pressing time 1h, unit pressure 9kg / cm 2 , hot pressing temperature 125 ℃, (52+25) s / mm, unit pressure 9kg / cm 2 ;
[0064] 2) After the flame-retardant multi-layer substrate layer is balanced, apply the modified soybean formaldehyde-free flame-retardant adhesive prepared in step 2, the upper surface is bonded to the oak wood surface with a thickness of 1.2 mm, and the...
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