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A kind of polyurethane nano flame retardant composite material and preparation method thereof

A composite material and nano-flame retardant technology, which is applied in the field of polymer materials, can solve the problems of polyurethane flame retardant and mechanical performance degradation, and achieve the effects of controllable curing speed, good mechanical strength, flame retardant performance, and good permeability

Active Publication Date: 2019-03-19
SHANDONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The flame retardants of polyurethane materials mainly include melamine, phosphate ester, inorganic or other halogen-containing flame retardants. Halogen-containing flame retardants are gradually banned due to the release of toxic gases during combustion, and additive flame retardants will Faced with the fact that the flame retardant component will gradually migrate to the surface of the product during use, which will lead to a decrease in the flame retardancy and mechanical properties of polyurethane

Method used

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  • A kind of polyurethane nano flame retardant composite material and preparation method thereof
  • A kind of polyurethane nano flame retardant composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1 A kind of preparation method of polyurethane nano flame retardant composite material, the steps are as follows:

[0029] A component contains by weight percentage:

[0030] Polyether polyol 4110 (Shantou Chenglin Chemical Co., Ltd.): 80%

[0031] THPC (Doyle Chemical Co., Ltd.) 10%

[0032] Graphene oxide grafted polyaniline 2%

[0033] N, N-dimethylcyclohexylamine (Sinopharm Chemical Reagent Co., Ltd.) 0.1%

[0034] Octyl phthalate (Sinopharm Chemical Reagent Company) 1%

[0035] Nano-montmorillonite (Zhejiang Fenghong Chemical Co., Ltd.) 5%

[0036] Nano silica (Shandong Shouguang Baote Chemical Co., Ltd.) 1.9%

[0037] B component is diphenylmethane diisocyanate (Qingdao Pengyuan Chemical Raw Materials Co., Ltd.)

[0038] Graphene oxide grafted polyaniline in component A refers to Kumar NA, Choi HJ, Shin YR, Chang DW, Dai LM, Baek JB. Polyaniline-grafted reduced graphene oxide for efficient electrochemical supercapacitors. ACS Nano, 2012, 6(2) : 1...

Embodiment 2

[0041] Embodiment 2 A method for preparing a polyurethane nano-flame-retardant composite material, the steps are as follows:

[0042] A component contains by weight percentage:

[0043] Polyether polyol 405: 85%

[0044] Flame retardant THPOH 1%

[0045] Graphene oxide grafted polyaniline 2%

[0046] Diethylenetriamine 0.3%

[0047] Triacetin 1.7%

[0048] Layered Double Hydroxide 5%

[0049] Nano-montmorillonite 5%

[0050] B component is polymethylene polyphenyl polyisocyanate

[0051] Stir the weighed component A raw materials evenly at room temperature, and set aside;

[0052] Mix components A and B evenly on site according to the volume ratio of A:B=1:1 to obtain polyurethane nano flame-retardant composite material, which can be used as reinforcement material for coal mine rock formations.

Embodiment 3

[0053] Embodiment 3 A method for preparing a polyurethane nano-flame-retardant composite material, the steps are as follows:

[0054] A component contains by weight percentage:

[0055] Polyether polyol 330N: 80%

[0056] Tetrabromobisphenol A 5%

[0057] Graphene oxide grafted polyaniline 3%

[0058] N,N-Dimethylbenzylamine 2%

[0059] Diisononyl Phthalate 3%

[0060] Nano Layered Double Hydroxide 2%

[0061] Carbon nanotubes 5%

[0062] B component is hexamethylene diisocyanate

[0063] Stir the weighed component A raw materials evenly at room temperature, and set aside;

[0064] Mix components A and B evenly on site according to the volume ratio of A:B=1:1 to obtain polyurethane nano flame-retardant composite material, which can be used as reinforcement material for coal mine rock formations.

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Abstract

The invention discloses a polyurethane nano-flame retardant composite material and a preparation method thereof. The composite material includes two components A and B, wherein component A contains polyether polyol, a reactive flame retardant, and a graphene oxide graft Polyaniline, catalyst, plasticizer, nano-modifier, B component is organic isocyanate. The invention solves the flame-retardant performance of the polyurethane reinforcement material used in coal mine rock formations, and the obtained polyurethane nano-composite material has high strength, high flame retardancy and antistatic properties, and provides guarantee for the safety of the mine-use polyurethane reinforcement material.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a reinforced polyurethane nano flame-retardant composite material for coal mines and a preparation method thereof. Background technique [0002] Coal is the main energy source in our country. Coal energy accounts for about 70% of the current energy supply system in our country. The development of coal mining industry directly affects the development of our country's economy. The lower coal seam of the coal mine has low compressive strength, is easily broken and deformed, and is prone to cracks and large fault zones; broken loose rock areas and fracture-developed zones are extremely prone to roof collapse and groundwater disasters under the condition of increased dynamic pressure. Coal mine safety production is related to the sustainable development of the coal industry and national energy security, and it is related to the safety of millions of miners. Inje...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G18/66C08G18/48C08G18/64C08G18/32C08K5/12C08K3/34C08K3/36C08K7/00C08K5/103C08K3/22C08K7/24C08K5/11C08K5/523
CPCC08G18/381C08G18/388C08G18/3887C08G18/3889C08G18/4081C08G18/48C08G18/6415C08G18/6666C08K3/22C08K3/34C08K3/36C08K5/103C08K5/11C08K5/12C08K5/523C08K7/00C08K7/24C08K2201/011
Inventor 韩永芹王圣武李廷希王天琪高萧萧张宗霖
Owner SHANDONG UNIV OF SCI & TECH