A kind of wood flame retardant modifier and preparation method thereof
A flame retardant modifier, wood technology, applied in the direction of wood impregnation, wood impregnation, wood processing appliances, etc., can solve the problems of formaldehyde polluted environment, poor resistance to loss, no contribution to wood dimensional stability, etc., and achieves a simple preparation method, The effect of improved anti-bleeding and remarkable flame retardant effect
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Embodiment 1
[0026] The present embodiment provides a kind of wood flame retardant modifier, and specific method is as follows:
[0027] A. Prepare raw materials according to the following weight ratio:
[0028]
[0029] Wherein, the catalyst is light yellow-green powder prepared by mixing and stirring various raw materials by conventional methods in the art.
[0030] B. Preparation of flame retardant modifier:
[0031] 1) In the reaction kettle equipped with a stirrer, thermometer and condenser tube, add the reaction material phosphoric acid, stir and heat at the same time, raise the temperature to 60°C, add all the urea, and continue to stir and heat the mixture of phosphoric acid and urea at the same time, so that The materials are distributed and heated evenly to obtain the mixture 1;
[0032] 2) When the temperature of the reactor is raised to 120°C, slowly and evenly add the catalyst into the reactor to make the mixture react, at this time the reaction material turns light green...
Embodiment 2
[0041] The present embodiment provides a kind of wood flame retardant modifier, and specific method is as follows:
[0042] A. Prepare raw materials according to the following weight ratio:
[0043]
[0044] The catalyst is the same as in Example 1.
[0045] B. Preparation of flame retardant modifier:
[0046] 1) In a reactor equipped with a stirrer, a thermometer and a condenser, add phosphoric acid in the reaction raw materials, stir and heat at the same time, so that the temperature rises to 50°C; add urea into the reactor, and continue to process the mixture of phosphoric acid and urea Stir to distribute and heat the material evenly to obtain mixture 1;
[0047] 2) Continue to heat the reactor until the temperature rises to 115°C, slowly and evenly add the catalyst into the reactor to make the mixture react, at this time the reaction material turns light green, and the mixture 2 is obtained;
[0048] 3) Continue to heat the reactor and observe the reaction phenomenon...
Embodiment 3
[0056] The present embodiment provides a kind of wood flame retardant modifier, and specific method is as follows:
[0057] A. Prepare raw materials according to the following weight ratio:
[0058]
[0059] Wherein, catalyst is with embodiment 1.
[0060] B. Preparation of flame retardant modifier:
[0061]1) In the reaction kettle equipped with a mixer, temperature and pressure monitor and condenser tube, add phosphoric acid in the reaction raw materials, stir and heat at the same time, so that the temperature rises to 60 ° C; add urea into the reaction kettle, the mixture of phosphoric acid and urea Stirring is continued to distribute and heat the material evenly to obtain mixture 1;
[0062] 2) Continue heating to raise the temperature to 110°C, slowly and uniformly add the catalyst into the reaction kettle to make the mixture react, at this time the reaction material turns light green, and the mixture 2 is obtained;
[0063] 3) Continue heating while observing the r...
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