Preparation method of ammonium polyphosphate wrapped with fluorine-containing silicone oil on surface

A technology of ammonium polyphosphate and fluorine-containing silicone oil, which is applied in the treatment of dyed organosilicon compounds, fibrous fillers, etc., can solve the problems of reduced flame retardant performance, easy precipitation of flame retardants, etc., and achieves improved hydrophobicity, excellent hydrophobicity, The effect of low temperature resistance

Active Publication Date: 2015-04-01
HONGLONGJIANG ORIENT SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] The purpose of the present invention is to solve the technical problems that the modified ammonium polyphosphate is easily hydrolyzed as a flame retardant, resulting in reduced flame retardant performance and easy precipitation of the flame retardant in the material, and provides a surface-coated fluorine-containing silicone oil The preparation method of ammonium polyphosphate

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  • Preparation method of ammonium polyphosphate wrapped with fluorine-containing silicone oil on surface
  • Preparation method of ammonium polyphosphate wrapped with fluorine-containing silicone oil on surface
  • Preparation method of ammonium polyphosphate wrapped with fluorine-containing silicone oil on surface

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specific Embodiment approach 1

[0018] Embodiment 1: This embodiment is a method for preparing ammonium polyphosphate coated with fluorine-containing silicone oil on the surface, specifically according to the following steps:

[0019] 1. Heating ammonium polyphosphate at a temperature of 70°C to 100°C for 3min to 10min to obtain heated ammonium polyphosphate;

[0020] 2. Mix the modifier and the dispersant uniformly at a temperature of 70°C to 100°C to obtain a mixed liquid, add the heated ammonium polyphosphate obtained in step 1 to the mixed liquid, and rotate at a speed of 1000r / min~ Stir at 2000r / min and temperature of 70°C to 100°C for 10min to 20min, then pulverize and sieve to obtain ammonium polyphosphate coated with fluorosilicone oil on the surface; the heated ammonium polyphosphate obtained in step 1 described in step 2 The mass ratio of ammonium polyphosphate and modifying agent is 100:(0.1~5); The mass ratio of modifying agent described in step 2 and dispersant is 1:(10~40); The modification des...

specific Embodiment approach 2

[0026] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is that the fluorine-containing silicone oil described in step 2 is heptadecafluorodecyltriethoxysilane, trifluoropropylmethyl polysiloxane, three Fluoromethyltrimethylsilane or trifluoropropylhydroxysiloxane. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0027] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is: the dispersant described in step two is acetone, absolute ethanol, absolute methanol, dichloromethane, chloroform, sherwood oil, diethyl ether or benzene. Others are the same as in the first or second embodiment.

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Abstract

The invention discloses a preparation method of ammonium polyphosphate wrapped with fluorine-containing silicone oil on the surface, relates to a preparation method of ammonium polyphosphate, and aims at solving the technical problems that existing modified ammonium polyphosphate as a fire retardant is easy to hydrolyze, so that the flame retardant property is reduced and the fire retardant in the material is easy to separate out. The method disclosed by the invention comprises the following steps: 1 heating ammonium polyphosphate; and 2 wrapping the surface of the ammonium polyphosphate with the fluorine-containing silicone oil. The method has the advantages that 1 the solubility of ammonium polyphosphate wrapped with the fluorine-containing silicone oil on the surface prepared by the method at a room temperature is greatly reduced in comparison with that of unwrapped ammonium polyphosphate at the room temperature; 2 the volume resistivity of a polyethylene material added with ammonium polyphosphate wrapped with the fluorine-containing silicone oil on the surface prepared by the method at the room temperature is greatly improved in compression with that of the polyethylene material added with the unwrapped ammonium polyphosphate; and 3 the hydrophobicity of ammonium polyphosphate wrapped with the fluorine-containing silicone oil on the surface prepared by the method is obviously improved, and the material compatibility and insulativity are also obviously improved.

Description

technical field [0001] The invention relates to a preparation method of ammonium polyphosphate. Background technique [0002] Ammonium polyphosphate (APP) is an additive inorganic flame retardant. It has high phosphorus content, large nitrogen content, good thermal stability, and the product is close to neutral. It can be combined with other flame retardants (inorganic or organic) ) mixed use, good dispersibility, cheap price, low toxicity, safe use, etc., so it is widely used in the preparation of intumescent fireproof coatings, cable fireproof treatment, flame retardant treatment of paper and wood, etc., and can also be used for Flame retardant products of plastic and rubber. [0003] According to the degree of polymerization n, APP can be divided into short-chain APP (n=10~20) (also known as water-soluble APP) and long-chain APP (n>20) (also known as water-insoluble APP), among which long-chain APP is widely used . At present, the improvement methods of APP mainly i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K9/10C08K9/06C08K3/32C08L23/06C09C1/00C09C3/12
Inventor 鲍文波高苏亮季洋张惠宋佳伦
Owner HONGLONGJIANG ORIENT SCI & TECH
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