Novel piperazine pyrophosphate flame retardant and preparation method thereof

A piperazine pyrophosphate and flame retardant technology, which is applied in the field of flame retardants, can solve the problems of easy agglomeration of flame retardants, reduced flame retardant efficiency, and restrictions on the application of piperazine flame retardants, and achieve good dispersion performance, Effect of improving flame retardancy and mechanical properties

Pending Publication Date: 2021-04-20
浙江富锦新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] In the prior art, there is a technology for preparing piperazine phosphate flame retardants. Although piperazine phosphate has been successfully prepared, the compatibility between the flame retardant and the plastic matrix is ​​poor, and the flame retardant itself is easy to agglomerate, resulting in

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  • Novel piperazine pyrophosphate flame retardant and preparation method thereof
  • Novel piperazine pyrophosphate flame retardant and preparation method thereof

Examples

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Example Embodiment

[0034]Example 1

[0035]A novel piperazine prokyd salt flame retardant and preparation method thereof, including the steps of:

[0036]Step 1, 100 kg of distilled water, 15 kg2-piperazine, 34 kg of phosphoric acid is added to the reactor, and nitrogen gas is introduced into the reactor, and the air is fully excluded, 100 min is stirred for 30 min, so that the material is sufficiently dissolved, and the reaction liquid is heated to 80 ° C. , The reaction is 2 h, then the temperature is lowered to 0 ° C, precipitated the white crystal, ice distilled water, and the white crystal is filtered under reduced pressure, then the resulting white crystals are placed in a cone dryer, dried at 100 ° C for 4h, then remove moisture, then remove moisture, then remove moisture, then When the powder was transferred to a vacuum kneader, the temperature was raised to 220 ° C, and the heat was held for 60 min, then cooled to room temperature to obtain a pyrophosphate piperazine powder;

[0037]Step 2, 3 kg of di...

Example Embodiment

[0040]Example 2

[0041]A novel piperazine prokyd salt flame retardant and preparation method thereof, including the steps of:

[0042]Step 1, 109 kg of distilled water, 15 kg2-piperazinone, 35 kg phosphoric acid is added to the reactor, and nitrogen gas is introduced into the reactor, and the air is fully excluded, and the air is stirred for 36 min, so that the material is fully dissolved, and the reaction liquid is heated to 83 ° C, The reaction is 2 h, then the temperature is reduced to 2 ° C, precipitated the white crystals, ice distilled water, and the white crystal is filtered under reduced pressure, then the resulting white crystal is placed in a cone dryer, dry 3 h 103 ° C, remove moisture, then When the powder was transferred to a vacuum kneader, the temperature was raised to 228 ° C, then heatded 47 min, then cooled to room temperature to obtain pyrophosphate tiperazine powder;

[0043]Step 2, 4 kg of diethylene amine, 32 kg of pyrophosphate piperazine powder, 104 kg of distilled w...

Example Embodiment

[0046]Example 3

[0047]A novel piperazine prokyd salt flame retardant and preparation method thereof, including the steps of:

[0048]Step 1, 115 kg of distilled water, 15 kg piperazine, 37 kg phosphoric acid is added to the reactor, and nitrogen gas is introduced into the reactor, and the air is fully excluded, 176 r / min is stirred for 47min, so that the material is sufficiently dissolved, the reaction liquid is heated to 85 ° C, reaction 2h Then, then reduce the temperature to 3 ° C, precipitated white crystals, ice distilled water, and remove the white crystal, then add the resulting white crystals into the cone dryer, dry 2 h 106 ° C, remove moisture, then transfer powder transfer In the vacuum kneader, the temperature was raised to 235 ° C, and the heat was 82min, then cooled to room temperature to obtain a pyrophosphate piperazine powder;

[0049]Step 2, 7-powered, 0.9 kg of dispersion stabilizer, 77 ° C.

[0050]Step three, then add 3 kg of copper with copper, 0.3 kg (2,7-octadiene-1-...

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Abstract

The invention discloses a novel piperazine pyrophosphate flame retardant and a preparation method thereof. The preparation method comprises the following steps: 1, adding distilled water, piperazinyl monomers and phosphoric acid into a reaction kettle in parts by mass, heating a reaction solution to 80-90 DEG C and reacting for 2h; reducing the temperature to 0-5 DEG C, separating out white crystals, and obtaining pyrophosphate piperazine powder; and carrying out surface polymerization reaction on the piperazine pyrophosphate, copper acrylate and (2, 7-octadiene-1-yl) succinic anhydride to obtain the novel piperazine pyrophosphate flame retardant.

Description

technical field [0001] The invention relates to the field of flame retardants, in particular to a novel piperazine pyrophosphate flame retardant and a preparation method thereof. Background technique [0002] With the continuous promotion of the application of polymer material technology, polymer materials have gradually replaced various metals and inorganic non-metallic materials with their high cost performance, and have gradually entered thousands of households. However, most polymer materials are easily It is flammable, and it will release a lot of heat when it burns. It has high smoke density and smoke toxicity, and the burning speed is fast. There are great safety hazards. It can be seen that the flame retardant modification of polymer materials is of great significance. [0003] At present, the flame retardant modification of polymer materials is mainly by adding flame retardants to the materials. According to whether the flame retardants contain halogen, flame retard...

Claims

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Application Information

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IPC IPC(8): C08G79/04C07F9/6509C08L63/00C08L85/02C08K5/3462
Inventor 方孝汉
Owner 浙江富锦新材料有限公司
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