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High flash point antiflaming type oil soluble polyurethane chemical grouting material

A technology of polyurethane chemistry and grouting materials, applied in protection devices, shaft linings, tunnel linings, etc., can solve problems such as environmental protection and adverse effects on human health, and achieve timely supply and good safety effects

Active Publication Date: 2010-02-17
POWERCHINA HUADONG ENG COPORATION LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This will have adverse effects on environmental protection and human health during the production and use of materials, and may even have serious consequences

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Embodiment 1, the raw material proportioning of this example is:

[0018] Polyether polyol 303 12 parts by weight

[0019] 5 parts by weight of dibutyl phthalate

[0020] 50 parts by weight of polymethylene polyphenyl polyisocyanate

[0021] 15 parts by weight of high boiling point composite solvent

[0022] 16 parts by weight of tri-2-chloroethyl-phosphate (TCEP)

[0023] 1.7 parts by weight of polyalkane siloxane

[0024] 0.3 parts by weight of N-methylmorpholine

[0025] Wherein the high boiling point composite solvent is formed by mixing 20 parts by weight of dimethyl succinate, 32 parts by weight of dimethyl glutarate and 43 parts by weight of dimethyl adipate.

[0026] The process is:

[0027] (1) Add 12 parts by weight of 303 polyether polyol and 5 parts by weight of dibutyl phthalate into a reaction kettle equipped with a condenser and an agitator, dehydrate under reduced pressure at 110°C for 2 hours, take samples, and carry out water Parts content deter...

Embodiment 2

[0031] Embodiment 2, the proportioning of raw materials of this example is:

[0032] Polyether polyol 220 8 parts by weight

[0033] Polyether polyol 204 9 parts by weight

[0034] 5 parts by weight of dibutyl phthalate

[0035] 52 parts by weight of polymethylene polyphenyl polyisocyanate

[0036] 10 parts by weight of high boiling point composite solvent

[0037] Halogen-free flame retardant FR-PU3# 14 parts by weight

[0038] 1.6 parts by weight of polyalkane siloxane

[0039] 0.4 parts by weight of N-methylmorpholine

[0040] Wherein the high boiling point composite solvent is formed by mixing 20 parts by weight of dimethyl succinate, 32 parts by weight of dimethyl glutarate and 43 parts by weight of dimethyl adipate.

[0041] The process is:

[0042] (1) Add 8 parts by weight of 220 polyether polyols, 9 parts by weight of 204 polyether polyols and 5 parts by weight of dibutyl phthalate in a reactor equipped with a condenser and an agitator, and reduce the temperatu...

Embodiment 3

[0046] Embodiment 3, the proportioning of raw materials of this example is:

[0047] Polyether polyol 204 5 parts by weight

[0048] Polyether polyol 303 5 parts by weight

[0049] Dioctyl phthalate 9 parts by weight

[0050] 45 parts by weight of diphenylmethane-4,4'-diisocyanate

[0051] 18 parts by weight of high boiling point composite solvent

[0052] 16 parts by weight of tri-dichloropropyl-phosphate (TDCPP)

[0053] 1.8 parts by weight of polyalkane siloxane

[0054] N, N-dimethylcyclohexylamine 0.2 parts by weight

[0055] Wherein the high boiling point composite solvent is formed by mixing 10 parts by weight of dimethyl succinate, 20 parts by weight of dimethyl glutarate and 35 parts by weight of dimethyl adipate.

[0056] The process is:

[0057] (1) Add 5 parts by weight of 204 polyether polyols, 5 parts by weight of 303 polyether polyols and 9 parts by weight of dioctyl phthalate in a reaction kettle equipped with a condenser and agitator, and reduce the tempe...

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Abstract

The invention relates to a high flash point antiflaming type oil soluble polyurethane chemical grouting material, and aims to provide a chemical grouting material with high flash point (more than 100DEG C), flame retarding and good environmental protection property. The high flash point antiflaming type oil soluble polyurethane chemical grouting material is characterized by comprising the following materials by weight portion: 40-60 portions of isocyanate, 10-25 portions of polyether, 3-15 portions of plasticizer, 10-30 portions of high boiling point compound solvents, 10-20 portions of efficient fire retardants, 0.5-3 portions of foam stabilizers and 0.2-1 portion of catalyst. The invention can be used for the seepage-proofing and strengthening processing on palisades in the undergroundspace excavating process of a coal mine, a subway, a tunnel, and the like and the seepage-proofing processing and the like of a dam and other building foundations.

Description

technical field [0001] The invention relates to a high-flash point flame-retardant oil-soluble polyurethane chemical grouting material. It is suitable for the anti-seepage and reinforcement treatment of rock walls during the excavation of underground spaces such as coal mines, subways, and tunnels, and the anti-seepage treatment of dams and other building foundations. Background technique [0002] Polyurethane grouting materials are divided into two categories: oil-soluble (also known as hydrophobic / hydrophobic) and water-soluble (also known as hydrophilic). These two types of polyurethane grouting materials have two significantly different characteristics in their reaction with water. Water-soluble (also called hydrophilic) grouting materials can absorb the water present in concrete, rock voids or soil to react to produce gels. It is mainly used in anti-seepage treatment of hydropower station foundation, anti-seepage treatment of concrete cracks, soil water retention treat...

Claims

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Application Information

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IPC IPC(8): C08G18/76C08G18/48C08K5/521E02B3/16E02D31/02E21D11/38
Inventor 包银鸿林中华张捷吴启民程红
Owner POWERCHINA HUADONG ENG COPORATION LTD
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