Inflaming retarding coating and application thereof

A technology of flame-retardant coatings and flame-retardant fillers, which is applied in fire-resistant coatings, polyurea/polyurethane coatings, coatings, etc., and can solve the problem of unfavorable synergistic strain between flame-retardant coatings and rubber elastic element substrates, and high addition of flame-retardant substances , unfavorable process operation and other problems, to achieve the effect of good elasticity, good mechanical properties and broad application prospects

Active Publication Date: 2014-04-30
ZHUZHOU TIMES NEW MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Patent CN102239205 mainly adopts a flame-retardant elastic coating for the surface of locomotive suspension products, and its flame-retardant components are mainly expandable graphite, ammonium polyphosphate, aluminum hydroxide and zinc borate, etc., and the addition amount is more than 40%. Moreover, a large amount of solvents are used in the treatment, which is not conducive to the process operation, and will cause harm to the human body and pollute the environment.
In addition, the addition of flame retardant substances in the coating of this patent is too high, which is not conducive to the synergistic strain between the flame retardant coating and the rubber elastic element substrate, and it is easy to cause the coating to peel off from the substrate under long-term cyclic stress

Method used

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  • Inflaming retarding coating and application thereof
  • Inflaming retarding coating and application thereof
  • Inflaming retarding coating and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] First, add 32.14 parts of A1 (HDI trimer) and 134.9 parts of A2 (prepolymer of TDI isocyanate and polytetrahydrofuran ether, grade C3090) according to the isocyanate molar ratio of 1:1, and 1.2 parts of defoamer BYK -141, 26.7 parts of diluent propylene glycol methyl ether acetate into the stirring tank, stirring at 800r / min for 5min, and discharging.

[0039] Next, weigh 86.4 parts of chain extender polyaspartate (NHQ640, amine value: 162) and 30.7 parts of melamine-modified polyether POP-290 into the stirring tank, and add 3.4 parts of dispersant BYK according to the experimental formula -163, 2.9 parts of defoamer BYK-392, 2.6 parts of leveling agent BYK-410 and 2.7 parts of organic bismuth catalyst (BiCAT8108) were dispersed at 1000r / min for 5min, and flame-retardant filler melamine-coated polyphosphoric acid was gradually added Ammonium (Exolit APP462) 46.2 parts, expandable graphite 20 parts, aluminum diethyl hypophosphite 48.7 parts, aluminum titanate 8 parts, un...

Embodiment 2

[0042] Add 33.9 parts of MDI trimer and 107.9 parts of TDI isocyanate elastic prepolymer C3090 according to the isocyanate molar ratio of 1.5:1, add 1.0 parts of defoamer BYK-141, 20.3 parts of diluent butyl acetate into the stirring tank, Stir at 800r / min for 5min and discharge.

[0043] Weigh 79.5 parts of chain extender polyaspartate (NHQ620, amine value: 193) and 14.6 parts of melamine-modified polyether POP-290 into the stirring tank, add 2.5 parts of dispersant BYK-163 according to the experimental formula , 2.9 parts of defoamer BYK-141, 1.7 parts of leveling agent BYK-358N, 2.4 parts of anti-sag agent BYK-333 and 1.7 parts of organic bismuth catalyst BiCAT8108 were dispersed at 1000r / min for 5min, and flame retardant fillers were added gradually 29.7 parts of amine-coated ammonium polyphosphate (APP462), 7.5 parts of expandable graphite, 31.7 parts of diethyl aluminum hypophosphite, 19.2 parts of melamine cyanurate, until all components are mixed evenly, add 4.4 parts ...

Embodiment 3

[0046] Add 42.8 parts of MDI trimer and 111.7 parts of IPDI isocyanate elastic prepolymer (prepolymer of IPDI and polyethylene oxide, Desmodur VPLS2371) at a molar ratio of 2:1 isocyanate, 0.8 parts of defoamer BYK- 141. Put 12.4 parts of diluent butyl acetate into the stirring tank, stir at 800r / min for 5min, and discharge.

[0047] Weigh 69.3 parts of chain extender polyaspartate (Desmophen NH1420, amine value: 202) and 23.5 parts of melamine modified polyether POP-290 into the stirring tank, add 1.8 parts of dispersant DISPERBYK-2025 according to the experimental formula , 1.3 parts of defoamer BYK-141, 1.3 parts of leveling agent BYK-358N, 2.0 parts of anti-sag agent BYK-333 and 1.8 parts of organic bismuth catalyst BiCAT8108 were dispersed at 1000r / min for 5min, and gradually added flame retardant filler Amine-coated ammonium polyphosphate (APP462) 47.1 parts, expandable graphite 29.8 parts, zinc borate 9.4 parts, until all components are mixed evenly, add 5.6 parts of ca...

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PUM

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Abstract

The invention discloses an inflaming retarding coating. The inflaming retarding coating comprises a component (1), namely an isocyanate pre-polymer, a component B (2), namely a fire retardant which comprises inflaming retarding polyether selected from acrylonitrile modified polyether and organic nitrogen compound modified polyether, and a component (3), namely a chain extender containing an amino. The inflaming retarding coating provided by the invention does not contain halogen elements, is high in solid content, low in moisture sensitivity and small in viscosity, needs a small quantity of diluting agent, causes small environmental pollution and has an environment-friendly effect; the inflaming retarding effect is prominent, and the adhesive force and the anti-fatigue performance are good; the migration and separation of the fire retardant are greatly relieved. More importantly, the coating provided by the invention does not lower the mechanical performance and the elasticity of a base material (such as a rubber element) and has low smoke and low toxin.

Description

technical field [0001] The invention belongs to the technical field of polymer material preparation, and in particular relates to an environment-friendly flame-retardant coating and its application. Background technique [0002] With the development and popularization of rail transit, high-speed vehicles such as high-speed rail EMUs, subways, and urban rails are becoming increasingly dependent on people's work and life in large and medium-sized cities. Its riding comfort and low noise requirements have put forward higher and higher requirements. Among them, the use of rubber vibration-reducing vibration-isolating devices in the traction and support system components of rolling stock is a reliable way to solve this problem. At present, the traditional metal rubber spring damping and isolating parts used on locomotive bogies have gradually evolved into pure rubber springs to improve their ability to absorb damping and vibration. Ordinary rubber elastomer components are usual...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/08C09D7/12C09D5/18C08G18/48C08G18/60C08J7/04
Inventor 高敬民彭博张浩李鸿岩姜其斌
Owner ZHUZHOU TIMES NEW MATERIALS TECH
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