CN117126509A - Fireproof flame-retardant melamine formaldehyde resin and preparation method thereof - Google Patents
Fireproof flame-retardant melamine formaldehyde resin and preparation method thereof Download PDFInfo
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- CN117126509A CN117126509A CN202311173591.8A CN202311173591A CN117126509A CN 117126509 A CN117126509 A CN 117126509A CN 202311173591 A CN202311173591 A CN 202311173591A CN 117126509 A CN117126509 A CN 117126509A
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- 229920000877 Melamine resin Polymers 0.000 title claims abstract description 162
- 239000003063 flame retardant Substances 0.000 title claims abstract description 62
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title claims abstract description 58
- 238000002360 preparation method Methods 0.000 title abstract description 19
- IVJISJACKSSFGE-UHFFFAOYSA-N formaldehyde;1,3,5-triazine-2,4,6-triamine Chemical class O=C.NC1=NC(N)=NC(N)=N1 IVJISJACKSSFGE-UHFFFAOYSA-N 0.000 claims abstract description 46
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Chemical compound O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000004925 Acrylic resin Substances 0.000 claims abstract description 11
- 229920000178 Acrylic resin Polymers 0.000 claims abstract description 11
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000010425 asbestos Substances 0.000 claims abstract description 9
- 239000000835 fiber Substances 0.000 claims abstract description 9
- 239000010451 perlite Substances 0.000 claims abstract description 9
- 235000019362 perlite Nutrition 0.000 claims abstract description 9
- 229910052895 riebeckite Inorganic materials 0.000 claims abstract description 9
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 claims description 39
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 30
- 238000003756 stirring Methods 0.000 claims description 24
- YXJUEYDETJCBKA-UHFFFAOYSA-N bis(2-hydroxyethyl)azanium;dihydrogen phosphate Chemical compound OP(O)(O)=O.OCCNCCO YXJUEYDETJCBKA-UHFFFAOYSA-N 0.000 claims description 21
- SRPWOOOHEPICQU-UHFFFAOYSA-N trimellitic anhydride Chemical compound OC(=O)C1=CC=C2C(=O)OC(=O)C2=C1 SRPWOOOHEPICQU-UHFFFAOYSA-N 0.000 claims description 17
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 claims description 9
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 8
- 238000003912 environmental pollution Methods 0.000 abstract description 3
- 238000009776 industrial production Methods 0.000 abstract description 3
- 239000002861 polymer material Substances 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 16
- 238000006243 chemical reaction Methods 0.000 description 11
- 239000000463 material Substances 0.000 description 9
- 239000000805 composite resin Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 239000000779 smoke Substances 0.000 description 6
- 230000001629 suppression Effects 0.000 description 6
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical class [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- -1 laminated board Substances 0.000 description 4
- 239000004640 Melamine resin Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000007086 side reaction Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229920001807 Urea-formaldehyde Polymers 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000004040 coloring Methods 0.000 description 2
- 231100000053 low toxicity Toxicity 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 125000004433 nitrogen atom Chemical group N* 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 238000009864 tensile test Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 229920003180 amino resin Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- VILAVOFMIJHSJA-UHFFFAOYSA-N dicarbon monoxide Chemical group [C]=C=O VILAVOFMIJHSJA-UHFFFAOYSA-N 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 239000002648 laminated material Substances 0.000 description 1
- 150000007974 melamines Chemical class 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000005935 nucleophilic addition reaction Methods 0.000 description 1
- 238000010534 nucleophilic substitution reaction Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 230000000979 retarding effect Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000009988 textile finishing Methods 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L61/00—Compositions of condensation polymers of aldehydes or ketones; Compositions of derivatives of such polymers
- C08L61/20—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
- C08L61/32—Modified amine-aldehyde condensates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G12/00—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
- C08G12/02—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes
- C08G12/40—Chemically modified polycondensates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The application relates to a fireproof flame-retardant melamine formaldehyde resin and a preparation method thereof, belonging to the technical field of high polymer materials. The fireproof flame-retardant melamine formaldehyde resin disclosed by the application comprises the following components in parts by weight: 30-50 parts of modified melamine formaldehyde resin, 10-20 parts of acrylic resin, 10-15 parts of ethylene glycol monobutyl ether, 5-10 parts of asbestos fiber, 0.5-3 parts of expanded perlite and 0.5-3 parts of antimony trioxide. The fireproof flame-retardant melamine formaldehyde resin prepared by the application has better fireproof flame-retardant performance, and the preparation process is simple, so that the industrial production cost is reduced, and the environmental pollution is reduced.
Description
Technical Field
The application belongs to the technical field of high polymer materials, and relates to a fireproof flame-retardant melamine formaldehyde resin and a preparation method thereof.
Background
Melamine has excellent performances of innocuity, heat resistance, arc resistance, good insulativity, easy coloring, aging resistance, chemical reagent resistance and the like, and is widely used in a plurality of fields of paint, adhesive, molding agent, flame retardant, laminated board, cement water reducer, decorative board, textile finishing agent, paper treating agent and the like. The melamine flame retardant is a novel efficient additive flame retardant, and has low toxicity, corrosiveness and water solubility, less drips, high flame retardant efficiency, good coloring capability, excellent electrical performance, environment-friendly requirement compliance and low application cost due to the fact that the melamine flame retardant and decomposition products are low in toxicity, and caters to the trend of developing the flame retardant to the efficient low-toxicity direction at home and abroad in recent years.
Melamine formaldehyde resins are polymers obtained by reacting melamine with formaldehyde, also known as melamine formaldehyde resins, melamine resins. The cross-linking reaction occurs during processing and forming, and the product is insoluble and infusible thermosetting resin. It is conventionally commonly referred to as an amino resin with urea-formaldehyde resins. The cured melamine formaldehyde resin is colorless and transparent, stable in boiling water, even can be used at 150 ℃, and has self-extinguishing property, arc resistance and good mechanical property. The melamine resin is added with inorganic filler to prepare molded products, which are rich in color and are mostly used for decorative plates, tableware and daily necessities. The tableware looks like porcelain or ivory, is not easy to crack and is suitable for mechanical washing. The melamine resin and urea resin can be mixed to prepare adhesive for manufacturing laminated materials. The butanol-modified melamine resins can be used as coatings and thermosetting paints. The melamine formaldehyde resin can be widely used. Because melamine has better fireproof flame retardance, the melamine formaldehyde resin has certain flame retardance and is widely applied to the fields of artificial boards, wood, buildings, paper packaging, coatings, textiles and the like. However, in the present stage, the preparation process of the fireproof flame-retardant melamine formaldehyde resin is more complicated and has higher cost, so that the production of the fireproof flame-retardant melamine formaldehyde resin is limited to a certain extent.
Disclosure of Invention
The application mainly aims to provide a fireproof flame-retardant melamine formaldehyde resin and a preparation method thereof, wherein the melamine formaldehyde resin is partially modified in the polymerization reaction of melamine and formaldehyde, so that the fireproof flame-retardant performance of the melamine formaldehyde resin is greatly improved, the preparation process is simple, the industrial production cost is reduced, and the environmental pollution is reduced.
The application adopts the following technical scheme to realize the purposes:
30-50 parts of modified melamine formaldehyde resin
10-20 parts of acrylic resin
Ethylene glycol monobutyl ether 10-15 parts
Asbestos fiber 5-10 parts
0.5-3 parts of expanded perlite
0.5-3 parts of antimonous oxide.
The preparation method of the modified melamine formaldehyde resin comprises the following steps:
firstly, reacting trimellitic anhydride with melamine for 1-3h in an alkaline environment; then adding the boronized diethanolamine phosphate and formaldehyde, keeping an alkaline environment, and continuously reacting for 1-3 hours at the temperature of 100-120 ℃ to obtain the modified melamine formaldehyde resin.
The alkaline environment is that triethanolamine is adopted to adjust the pH value to 7.5-8.5.
The molar ratio of trimellitic anhydride to melamine is 1 (1-3).
The mol ratio of the boronated diethanolamine phosphate to the melamine is 1 (3-5).
The mole ratio of melamine to formaldehyde is 1 (1-3).
The preparation method of the fireproof flame-retardant melamine formaldehyde resin comprises the following steps: adding the modified melamine formaldehyde resin, the acrylic resin and the ethylene glycol monobutyl ether into a stirring tank, and fully stirring for 30-60 minutes; adding asbestos fiber, expanded perlite and antimony trioxide, and stirring for 30-60 min.
The application also provides a specific application of the prepared fireproof flame-retardant melamine formaldehyde resin, namely the fireproof flame-retardant melamine formaldehyde resin can be used as a flame retardant.
The application has the following beneficial effects:
1. the fireproof flame-retardant melamine formaldehyde resin prepared by the application has better fireproof flame-retardant effect and better tensile property.
2. In the preparation process of the fireproof flame-retardant melamine formaldehyde resin, the melamine resin is subjected to preliminary modification, the carbonyl carbon atoms in the trimellitic anhydride and partial nitrogen atoms in the melamine are subjected to nucleophilic addition reaction by utilizing the reaction of the trimellitic anhydride and the melamine, and then the modified melamine formaldehyde resin is formed by carrying out nucleophilic substitution reaction with the boronized diethanolamine phosphate at the temperature of more than 100 ℃ and condensing the residual nitrogen atoms with formaldehyde. The fireproof and flame-retardant properties of the modified melamine formaldehyde resin are greatly improved. And after components such as acrylic resin and the like are added, the fireproof and flame-retardant properties of the material are further improved.
3. The fireproof flame-retardant melamine formaldehyde resin has the advantages of simple preparation process, no need of complex synthesis and other processes, capability of effectively reducing industrial production cost, and capability of effectively reducing environmental pollution due to simple process and no need of complex organic solvents or compounds.
4. The fireproof flame-retardant melamine formaldehyde resin disclosed by the application is widely applied, has a good fireproof flame-retardant effect, can be applied to the fields of artificial boards, wood, buildings, paper packages, coatings, textiles and the like, and has a wide application prospect.
Detailed Description
The present application is further illustrated below with reference to specific examples, which are to be construed as merely illustrative of the application and not limiting of its scope, as various equivalent modifications to the application will fall within the scope of the claims after reading the application.
Example 1 fireproof flame retardant melamine formaldehyde resin and preparation method thereof
Preparing modified melamine formaldehyde resin:
putting trimellitic anhydride and melamine into a reaction kettle, adopting triethanolamine to adjust pH=8, and reacting for 2 hours in the alkaline environment; and adding the boronized diethanolamine phosphate and formaldehyde, keeping the pH value to be 8, and continuously reacting for 2 hours at the temperature of 110 ℃ to obtain the modified melamine formaldehyde resin. Wherein, the mole ratio of the trimellitic anhydride to the melamine is 1:2; the molar ratio of the boronated diethanolamine phosphate to the melamine is 1:3; the molar ratio of melamine to formaldehyde was 1:2.5.
Fireproof flame-retardant melamine formaldehyde resin is prepared by:
adding 45 parts of the modified melamine formaldehyde resin, 15 parts of acrylic resin and 13 parts of ethylene glycol monobutyl ether into a stirring tank, and fully stirring for 60 minutes; adding 8 parts of asbestos fiber, 2 parts of expanded perlite and 1.5 parts of antimonous oxide, and continuously stirring for 60 minutes to obtain the modified calcium carbonate.
Example 2 fireproof flame retardant melamine formaldehyde resin and preparation method thereof
Preparing modified melamine formaldehyde resin:
putting trimellitic anhydride and melamine into a reaction kettle, adopting triethanolamine to adjust pH=7.5, and reacting for 1h in the alkaline environment; and adding the boronized diethanolamine phosphate and formaldehyde, keeping the pH value to be 7.5, and continuously reacting for 3 hours at the temperature of 100 ℃ to obtain the modified melamine formaldehyde resin. Wherein, the mole ratio of the trimellitic anhydride to the melamine is 1:3; the molar ratio of the boronated diethanolamine phosphate to the melamine is 1:3; the molar ratio of melamine to formaldehyde was 1:1.
Fireproof flame-retardant melamine formaldehyde resin is prepared by:
adding 50 parts of the modified melamine formaldehyde resin, 10 parts of acrylic resin and 15 parts of ethylene glycol monobutyl ether into a stirring tank, and fully stirring for 50 minutes; adding 5 parts of asbestos fiber, 3 parts of expanded perlite and 0.5 part of antimonous oxide, and continuously stirring for 30 minutes to obtain the modified calcium carbonate.
Example 3 fireproof flame retardant Melamine Formaldehyde resin and preparation method thereof
Preparing modified melamine formaldehyde resin:
putting trimellitic anhydride and melamine into a reaction kettle, adopting triethanolamine to adjust pH=8.5, and reacting for 3 hours in the alkaline environment; and adding the boronized diethanolamine phosphate and formaldehyde, keeping the pH value to be 8.5, and continuously reacting for 1h at 120 ℃ to obtain the modified melamine formaldehyde resin. Wherein, the mole ratio of the trimellitic anhydride to the melamine is 1:1; the molar ratio of the boronated diethanolamine phosphate to the melamine is 1:5; the molar ratio of melamine to formaldehyde was 1:3.
Fireproof flame-retardant melamine formaldehyde resin is prepared by:
adding 30 parts of the modified melamine formaldehyde resin, 20 parts of acrylic resin and 10 parts of ethylene glycol monobutyl ether into a stirring tank, and fully stirring for 30 minutes; adding 10 parts of asbestos fiber, 0.5 part of expanded perlite and 3 parts of antimonous oxide, and continuously stirring for 40 minutes to obtain the modified calcium carbonate.
Example 4 fireproof flame retardant Melamine Formaldehyde resin and preparation method thereof
Preparing modified melamine formaldehyde resin:
putting trimellitic anhydride and melamine into a reaction kettle, adopting triethanolamine to adjust pH=8, and reacting for 2 hours in the alkaline environment; and adding the boronized diethanolamine phosphate and formaldehyde, keeping the pH value to be 8, and continuously reacting for 2 hours at the temperature of 110 ℃ to obtain the modified melamine formaldehyde resin. Wherein, the mole ratio of the trimellitic anhydride to the melamine is 1:2; the molar ratio of the boronated diethanolamine phosphate to the melamine is 1:4; the molar ratio of melamine to formaldehyde was 1:1.5.
Fireproof flame-retardant melamine formaldehyde resin is prepared by:
adding 35 parts of the modified melamine formaldehyde resin, 115 parts of acrylic resin and 13 parts of ethylene glycol monobutyl ether into a stirring tank, and fully stirring for 30 minutes; adding 8 parts of asbestos fiber, 1 part of expanded perlite and 2.5 parts of antimonous oxide, and continuously stirring for 60 minutes to obtain the modified calcium carbonate.
Comparative example 1
Preparing modified melamine formaldehyde resin:
and (3) placing the boronized diethanolamine phosphate, formaldehyde and melamine in a reaction kettle, regulating the pH to be 8 by using triethanolamine, and reacting for 2 hours at the temperature of 110 ℃ to obtain the modified melamine formaldehyde resin. Wherein, the mol ratio of the boronized diethanol amine phosphate to the melamine is 1:7; the molar ratio of melamine to formaldehyde was 1:2.5.
Preparation of melamine formaldehyde resin composite material:
adding 45 parts of the modified melamine formaldehyde resin, 15 parts of acrylic resin and 13 parts of ethylene glycol monobutyl ether into a stirring tank, and fully stirring for 60 minutes; adding 2 parts of expanded perlite, and continuously stirring for 60 minutes to obtain the modified perlite.
Comparative example 2
Preparing modified melamine formaldehyde resin:
putting trimellitic anhydride and melamine into a reaction kettle, adopting triethanolamine to adjust pH=8, and reacting for 2 hours in the alkaline environment; and adding formaldehyde, keeping the pH=8, and continuing to react for 2 hours at the temperature of 110 ℃ to obtain the modified melamine formaldehyde resin. Wherein, the mole ratio of the trimellitic anhydride to the melamine is 1:5; the molar ratio of melamine to formaldehyde was 1:2.5.
Preparation of melamine formaldehyde resin composite material:
adding 45 parts of the modified melamine formaldehyde resin and 13 parts of ethylene glycol monobutyl ether into a stirring tank, and fully stirring for 60 minutes; adding 8 parts of asbestos fiber and 1.5 parts of antimonous oxide, and continuously stirring for 60 minutes to obtain the composite material.
Performance testing
1. The fireproof flame-retardant melamine formaldehyde resin prepared by the application has the tensile property test
Impregnated paper was prepared from a common melamine formaldehyde resin, a modified melamine formaldehyde resin obtained in example 1 of the present application, a modified melamine formaldehyde resin obtained in comparative example 1, a fireproof flame-retardant melamine formaldehyde resin obtained in examples 1 to 4, and a melamine formaldehyde resin composite material obtained in comparative examples 1 to 2, and tensile test was performed. 10 samples were tested for each group and averaged.
TABLE 1 Melamine Formaldehyde resin tensile test
| Group of | Breaking force/N | Elongation at break force position/% |
| Common melamine formaldehyde resin | 86.39 | 0.61 |
| EXAMPLE 1 modified Melamine Formaldehyde resin | 136.28 | 0.91 |
| EXAMPLE 1 fireproof flame retardant Melamine Formaldehyde resin | 153.27 | 0.98 |
| EXAMPLE 2 fireproof flame retardant Melamine Formaldehyde resin | 145.39 | 0.96 |
| EXAMPLE 3 fireproof flame retardant Melamine Formaldehyde resin | 148.21 | 0.85 |
| EXAMPLE 4 fireproof flame retardant Melamine Formaldehyde resin | 142.85 | 0.94 |
| Comparative example 1 modified melamine formaldehyde resin | 73.18 | 0.47 |
| Comparative example 1 Melamine Formaldehyde resin composite Material | 80.31 | 0.59 |
| Comparative example 2 Melamine Formaldehyde resin composite Material | 91.02 | 0.73 |
Analysis of results: the modified melamine formaldehyde resin and the fireproof flame-retardant melamine formaldehyde resin prepared by the application have better tensile property, and the effect is obviously better than that of the common melamine formaldehyde resin; comparative example 1 the preparation method of the modified melamine formaldehyde resin is different from example 1, the tensile properties of the modified melamine formaldehyde resin are poor, even inferior to those of the common melamine formaldehyde resin, and for this reason, the excessive use of the boronated diethanolamine phosphate may cause the internal structure of the melamine formaldehyde resin to be changed, so that the tensile properties thereof are significantly reduced. The modified melamine formaldehyde resin in the comparative example 2 does not contain the boronated diethanolamine phosphate, and the tensile property of the prepared melamine formaldehyde resin composite material is better than that of the modified melamine formaldehyde resin in the comparative example 1, so that the use of the boronated diethanolamine phosphate has a certain influence on the tensile property of the melamine formaldehyde resin.
2. The fireproof and flame-retardant melamine formaldehyde resin prepared by the application has fireproof and flame-retardant performance test
The flame retardant property and smoke suppression property of the modified melamine formaldehyde resins obtained in the general melamine formaldehyde resin, the modified melamine formaldehyde resins obtained in the application example 1, the application comparative example 1 and the application comparative example 2, the fireproof flame retardant melamine formaldehyde resins obtained in the examples 1 to 4, and the melamine formaldehyde resin composite materials obtained in the comparative examples 1 to 2 were tested by preparing polyethylene terephthalate (PET) films and referring to GB/T2406.2-2009 and GB/T8627-2007.
TABLE 2 fire resistance and flame retardant Performance test of Melamine Formaldehyde resins
Analysis of results: the fireproof flame-retardant melamine formaldehyde resin has better smoke suppression and flame retardance. The smoke suppression and flame retardation effects of the modified melamine formaldehyde resin prepared by the application are obviously better than those of the common melamine formaldehyde resin, and the smoke suppression and flame retardation effects after the components such as the acrylic resin are added are better. The modified melamine formaldehyde resin in comparative example 1 was not modified with trimellitic anhydride, and the smoke suppression and flame retarding effects were inferior to those of the conventional melamine formaldehyde resin, but were inferior to those of the modified melamine formaldehyde resin obtained in example 1; the modified melamine formaldehyde resin in comparative example 2 was modified without the use of the boronated diethanolamine phosphate, and the flame retardant and smoke suppression effects were not different from those of the conventional melamine formaldehyde resin; the melamine formaldehyde resin composite materials prepared in comparative examples 1 and 2 have obviously poorer smoke-suppressing and flame-retarding effects than those of the examples.
The modified melamine formaldehyde resin is generated by reaction at the temperature of more than 100 ℃, and certain side reactions possibly occur in the reaction of the boronated diethanolamine phosphate and the melamine, wherein the side reactions possibly cause the modified melamine formaldehyde resin to have better fireproof and flame-retardant effects, the use amount of the boronated diethanolamine phosphate in the reaction is limited to a certain extent, and the more the modified melamine formaldehyde resin is not used, the more the use amount is, the more side reaction products are possibly caused, and the fireproof and flame-retardant performance of the melamine formaldehyde resin is reduced.
Claims (8)
1. The fireproof flame-retardant melamine formaldehyde resin comprises the following components in parts by weight:
2. the fire-retardant melamine formaldehyde resin according to claim 1, wherein the modified melamine formaldehyde resin is prepared by the following steps:
firstly, reacting trimellitic anhydride with melamine for 1-3h in an alkaline environment; then adding the boronized diethanolamine phosphate and formaldehyde, keeping an alkaline environment, and continuously reacting for 3-5 hours at the temperature of 100-120 ℃ to obtain the modified melamine formaldehyde resin.
3. The fire-retardant melamine formaldehyde resin as claimed in claim 2, wherein the alkaline environment is a pH of 7.5-8.5 adjusted by triethanolamine.
4. The flame retardant melamine formaldehyde resin as claimed in claim 2, wherein the molar ratio of trimellitic anhydride to melamine is 1 (1-3).
5. The flame retardant melamine formaldehyde resin as claimed in claim 2, wherein the molar ratio of the boronated diethanolamine phosphate to melamine is 1 (3-5).
6. The flame retardant melamine formaldehyde resin as claimed in claim 2, wherein the molar ratio of melamine to formaldehyde is 1 (1-3).
7. A fire-retardant melamine formaldehyde resin as claimed in any one of claims 1 to 6, prepared by: adding the modified melamine formaldehyde resin, the acrylic resin and the ethylene glycol monobutyl ether into a stirring tank, and fully stirring for 30-60 minutes; adding asbestos fiber, expanded perlite and antimony trioxide, and stirring for 30-60 min.
8. Use of a melamine formaldehyde resin as a flame retardant, characterized in that the melamine formaldehyde resin is a fire-retardant melamine formaldehyde resin as claimed in any one of claims 1 to 7.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311173591.8A CN117126509A (en) | 2023-09-12 | 2023-09-12 | Fireproof flame-retardant melamine formaldehyde resin and preparation method thereof |
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| CN202311173591.8A CN117126509A (en) | 2023-09-12 | 2023-09-12 | Fireproof flame-retardant melamine formaldehyde resin and preparation method thereof |
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| EP0338470A2 (en) * | 1988-04-21 | 1989-10-25 | Dai-Ichi Kogyo Seiyaku Co., Ltd. | Method of producing imide bond-containing resins and flame retardants comprising said resins |
| KR100805919B1 (en) * | 2006-10-18 | 2008-02-21 | 김순미 | Melamine type fire retardant material compounds by using water-soluble polyurethane/acrylic type |
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