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Polyurethane foam with organosilicon modified expanded graphite as flame retardant

A technology of polyurethane foam and expanded graphite, applied in the field of polyurethane foam, can solve the problems of easily threatening life safety, poor flame retardant performance, poor high and low temperature resistance, etc., and achieves good thermal insulation effect, good flame retardant effect, and increased flame retardancy. Effect

Inactive Publication Date: 2018-11-16
德清顾舒家华高分子材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the problems of poor high and low temperature resistance and poor flame retardancy of polyurethane foam in the prior art, which are very easy to threaten life safety, and provide a kind of polyurethane foam which can be prepared with high and low temperature resistance, good weather resistance and Flame retardant, safe and reliable polyurethane foam with silicone modified expanded graphite as flame retardant

Method used

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  • Polyurethane foam with organosilicon modified expanded graphite as flame retardant

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Embodiment 1

[0030] A polyurethane foam using organosilicon-modified expanded graphite as a flame retardant, comprising polyester polyol, 1,4-cyclohexane diisocyanate, organosilicon-modified expanded graphite, hydroxyl-terminated fluorine The mass ratio of silicone resin, stannous octoate, triethylenediamine, sodium dodecylbenzenesulfonate, antioxidant TNP and cobalt isooctanoate is 100:95:25:10:3:2 :2:2:1.

[0031] The preparation method of described organosilicon modified expanded graphite is as follows:

[0032] (1) Surface activation: in parts by weight, get 100 parts of expanded graphite, add 0.5 part of ferrous chloride therein, after mixing uniformly, place in the reactor, and replace the original air with nitrogen in the reactor, And pass into wherein the steam that contains 0.005% volume fraction acetic acid vapor, raise temperature to 105 ℃, keep the air pressure in the reactor to be 6.0MPa, be down to room temperature after stirring and activating for 45 minutes, wash with wate...

Embodiment 2

[0037] A polyurethane foam using organosilicon-modified expanded graphite as a flame retardant, comprising polyester polyol, 1,4-cyclohexane diisocyanate, organosilicon-modified expanded graphite, hydroxyl-terminated fluorine Silicone resin, stannous octoate, triethylenediamine, sodium octadecyl sulfate, antioxidant TPP and dibutyltin dilaurate, the mass ratio of the components is 100:120:35:25:8:6: 5:5:3.

[0038] The preparation method of described organosilicon modified expanded graphite is as follows:

[0039] (1) surface activation: according to parts by weight, get 100 parts of expanded graphite, add 2 parts of ferrous chloride wherein, after mixing uniformly, be placed in reactor, lead nitrogen to replace original air in reactor, And feed therein the water vapor containing the acetic acid vapor of 0.05% by volume, raise the temperature to 125°C, keep the air pressure in the reactor at 9.5MPa, stir and activate for 100 minutes and then drop to room temperature, wash wit...

Embodiment 3

[0044] A polyurethane foam using organosilicon-modified expanded graphite as a flame retardant, comprising polyester polyol, 1,4-cyclohexane diisocyanate, organosilicon-modified expanded graphite, hydroxyl-terminated fluorine The mass ratio of silicone resin, stannous octoate, triethylenediamine, zinc stearate, antioxidant 164 and zinc isooctanoate is 100:100:30:20:5:5:3:3 :2.

[0045] The preparation method of described organosilicon modified expanded graphite is as follows:

[0046] (1) Surface activation: according to parts by weight, get 100 parts of expanded graphite, add 1 part of ferrous chloride therein, after mixing uniformly, place in the reactor, and replace the original air with nitrogen in the reactor, And feed therein the water vapor containing the acetic acid vapor of 0.015% by volume, raise the temperature to 115°C, keep the air pressure in the reactor at 8.0MPa, stir and activate for 60 minutes and then drop to room temperature, wash with water until neutral,...

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Abstract

The invention relates to a polyurethane foam, especially to a polyurethane foam with organosilicon modified expanded graphite as a flame retardant. The polyurethane foam must contains organosilicon modified expanded graphite. The polyurethane foam further comprises polyester polyol, 1,4-cyclohexane diisocyanate, hydroxyl-terminated fluorosilicone resin, stannous octoate, triethylenediamine, a surfactant, an antioxidant and a drier. The polyurethane foam of the invention has the following beneficial effects: (1) good flame retardant effect; (2) low addition amount of the flame retardant; (3) good heat preservation effect; (4) no residual raw material inside the foam and no harm to the human body.

Description

technical field [0001] The invention relates to a polyurethane foam, in particular to a polyurethane foam using organosilicon-modified expanded graphite as a flame retardant. Background technique [0002] Polyurethane material is currently the best performance insulation material in the world. A class of polymers whose main chain contains -NHCOO- repeating structural units. English abbreviation PU. It is polymerized from isocyanate (monomer) and hydroxyl compound. Due to the strong polar carbamate group, insoluble in non-polar groups, it has good oil resistance, toughness, wear resistance, aging resistance and adhesion. Polyurethane elastomers are used as rollers, conveyor belts, hoses, auto parts, shoe soles, synthetic leather, wires and cables, and medical artificial organs, etc.; soft foams are used as pads for vehicles, homes, and clothing; Thermal insulation, sound absorption, packaging, insulation and low-foaming synthetic wood, coatings for advanced vehicles, furn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/42C08G18/61C08K7/24C08K9/06C08K9/04C08G101/00
CPCC08G18/4009C08G18/42C08G18/61C08G2101/00C08K7/24C08K9/04C08K9/06
Inventor 卢伟蔡盼盼
Owner 德清顾舒家华高分子材料有限公司
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