Lightweight high-strength flame-retardant material and preparation method thereof

A flame-retardant material and high-strength technology, applied in the field of flame-retardant materials, can solve problems such as poor use effect and easy agglomeration, and achieve the effects of improving light resistance, ensuring intrinsic flame retardancy, and improving mechanical properties.

Active Publication Date: 2019-12-06
HUNAN ZHENQIU FIRE FIGHTING IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

New flame retardants reported in recent years include phosphorus-based phosphate esters, phosphorus compounds, etc., nitrogen-based melamine and its salts, etc., but the effect of using them alone is poor.
Nano-flame retardants such as montmorillonite have a blocking effect, and its nanoscale can reduce the density of composite materials and improve mechanical strength, but it is easy to agglomerate when the amount is large

Method used

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  • Lightweight high-strength flame-retardant material and preparation method thereof
  • Lightweight high-strength flame-retardant material and preparation method thereof
  • Lightweight high-strength flame-retardant material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] This example provides a lightweight high-strength flame-retardant material and its preparation method:

[0043] The raw material composition used in this embodiment is:

[0044] Norbornane diisocyanate oligomer 18.5 parts

[0045] Polycaprolactone polyol 10.5 parts

[0046] Polyglycolic acid grafted starch copolymer 11 parts

[0047] Trihydroxymethyl phosphine oxide 3.2 parts

[0048] 2.4 parts of bis(4-hydroxybutyl)phenyl phosphate

[0049] 2 parts melamine cyanurate

[0050] 1.1 parts of 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide grafted cage polysilsesquioxane

[0051] Eight-armed hydroxybutyl cage polysilsesquioxane 0.9 parts

[0052] Antioxidant 1.5 parts

[0053] Wherein, the molecular weight of the norbornane diisocyanate oligomer is 6000-8000, and the NCO content is 19.6%.

[0054] The polyglycolic acid grafting rate in the polyglycolic acid grafted starch copolymer accounts for 34.5% of the total mass of the substance.

[0055] The molecular weig...

Embodiment 2

[0061] This example provides a lightweight high-strength flame-retardant material and its preparation method:

[0062] The raw material composition used in this embodiment is:

[0063] Norbornane diisocyanate oligomer 20 parts

[0064] Polycaprolactone polyol 12 parts

[0065] Polyglycolic acid grafted starch copolymer 9.5 parts

[0066] Trihydroxymethyl phosphine oxide 3.2 parts

[0067] 2.2 parts of bis(4-hydroxybutyl)phenyl phosphate

[0068] 2 parts melamine cyanurate

[0069] 0.8 parts of 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide grafted cage polysilsesquioxane

[0070] Eight-armed hydroxybutyl cage polysilsesquioxane 1 part

[0071] Antioxidant 1.5 parts

[0072] Wherein, the molecular weight of the norbornane diisocyanate oligomer is 4500-5500, and the NCO content is 22%.

[0073] The grafting rate of polyglycolic acid in the polyglycolic acid grafted starch copolymer is 32% based on its total mass percentage.

[0074] The molecular weight of the polyc...

Embodiment 3

[0080] This example provides a lightweight high-strength flame-retardant material and its preparation method:

[0081] The raw material composition used in this embodiment is:

[0082] Norbornane diisocyanate oligomer 15 parts

[0083] Polycarbonate diol 8 parts

[0084] Polyglycolic acid grafted starch copolymer 6 parts

[0085] Trihydroxymethylphosphine oxide 2 parts

[0086] Bis(4-hydroxypentyl)phenyl phosphate 1.5 parts

[0087] 1.5 parts of melamine cyanurate

[0088] Eight-armed hydroxybutyl cage polysilsesquioxane 1 part

[0089] Antioxidant 1 part.

[0090] Wherein, the molecular weight of the norbornane diisocyanate oligomer is 1800-5000, and the NCO content is 15%.

[0091] The polyglycolic acid grafting rate in the polyglycolic acid grafted starch copolymer accounts for 24% of the total mass of the substance.

[0092] The molecular weight of the polycaprolactone polyol is 4000-12000.

[0093] The preparation step of described material comprises:

[0094] S...

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Abstract

The invention discloses a lightweight high-strength flame-retardant material. According to the present invention, a norbornane diisocyanate oligomer, polyester polyol, a starch copolymer, phosphinylidynetrimethanol, hydroxyl phosphate, melamine cyanurate, polyhedral oligomeric silsesquioxane and an antioxidant are used as raw materials; by utilizing the structural design and the interaction of thecomponents, a polyglycolic acid grafted starch copolymer and a phosphorus-containing substance are used as a carbon source, a cyanamide substance is used as a gas source, a phosphoric acid substanceis used as an acid source, a compact carbon layer is formed after heating combustion, and excellent flame retardancy is achieved through puffing flame-retardant effect; by adding and dispersing polyhedral oligomeric silsesquioxane to the matrix, the flame retardancy and the mechanical property of the material can be further improved; and by adopting the high-pressure foaming and rapid cooling technology after pre-reaction, the uniform foam holes can be effectively ensured, the foaming ratio is high, the material strength is high, the buffer performance is good, and the obtained material can beused as a fireproof core board or an outer board.

Description

technical field [0001] The invention relates to the technical field of flame retardant materials, more specifically, to a lightweight high-strength flame retardant material and a preparation method thereof. Background technique [0002] Frequent fires cause huge losses to people's lives and properties, and building fires are the most harmful category. Flame retardant and fire protection have been highly valued by the government. The Ministry of Public Security and the Ministry of Housing and Urban-Rural Development jointly formulated the "Interim Regulations on Fire Protection of Civil Building External Thermal Insulation Systems and External Wall Decoration" (Gong Tong Zi [2009] No. 46) on September 25, 2009 ), which clearly stipulates: "The combustion performance of civil building external insulation materials should be Class A, and should not be lower than Class B2. The boards in the building system, such as filling materials for doors and windows, or boards for decoratio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/79C08G18/66C08G18/42C08G18/64C08G18/61C08G18/38C08G18/44C08K5/3492C08L75/06C08L83/08C08J9/12
CPCC08G18/3878C08G18/4277C08G18/4283C08G18/44C08G18/61C08G18/6484C08G18/6633C08G18/79C08J9/0028C08J9/0061C08J9/122C08J2203/06C08J2375/06C08J2483/08C08K5/34928
Inventor 符定宇陈一
Owner HUNAN ZHENQIU FIRE FIGHTING IND
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