Low-smoke-density low-heat-release halogen-free flame-retardant PC material and preparation method and application thereof
A smoke density and low heat technology, applied in the field of low smoke density, low heat release, halogen-free flame retardant PC material and its preparation, can solve the problem of releasing a large amount of smoke and heat, achieve simple operation, scientific design, improve smoke density and heat release performance effect
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[0060]Example 1-3
[0061]Examples 1-3 disclose the synthesis method of the organosilicon / phenoxyphosphazene of the present invention.
Example Embodiment
[0062]Example 1
[0063]This embodiment discloses the synthesis method of the organosilicon / phenoxyphosphazene of the present invention, specifically:
[0064]①. Prepare linear chlorine-containing polyphosphazene by ring-opening at 250°C with 40g of hexachlorocyclotriphosphazene. After the detection reaction is complete, stop heating and set aside;
[0065]②. At high temperature (160℃), pass 200g of 5wt% NaOH aqueous solution into 100g of xylene containing 10g of bisphenol a and immediately separate the water. When the disodium salt of bisphenol a is formed and precipitated, use iso The propanol is dissolved, and all the solvent is finally evaporated to obtain the dry bisphenol a disodium salt. Finally, the prepared bisphenol a disodium salt is dissolved in xylene to prepare 10% bisphenol a disodium salt-xylene Solution
[0066]③. The linear chlorine-containing polyphosphazene prepared in step ①, 10g methyltrichlorochlorosilane, and 80g 10wt% bisphenol A disodium phenol-xylene solution were rea...
Example Embodiment
[0067]Example 2
[0068]This embodiment discloses the synthesis method of the organosilicon / phenoxyphosphazene of the present invention, specifically:
[0069]①. Prepare linear chlorine-containing polyphosphazene by ring-opening at 250°C with 45g of hexachlorocyclotriphosphazene. After the detection reaction is complete, stop heating and set aside;
[0070]②. Using xylene as the solvent, at high temperature (160℃), pass 200g of 5wt% NaOH aqueous solution into 100g of xylene containing 10g of bisphenol a and immediately separate the water. When the disodium salt of bisphenol a is formed and precipitated Then dissolve with isopropanol, and finally evaporate all the solvent to obtain dry bisphenol a disodium salt, and finally dissolve the prepared bisphenol a disodium salt in xylene to prepare 15wt% bisphenol a disodium Salt-xylene solution;
[0071]③. The linear chlorine-containing polyphosphazene prepared in step ①, 13g ethyltrichlorochlorosilane, 90g 15wt% bisphenol A disodium phenol-xylene sol...
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