CN109810415A - It is a kind of using pentaerythrite modified melamine-formaldehyde resin/piperazine pyrophosphate compound as the expansion type flame retardant of carbon forming agent - Google Patents

It is a kind of using pentaerythrite modified melamine-formaldehyde resin/piperazine pyrophosphate compound as the expansion type flame retardant of carbon forming agent Download PDF

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CN109810415A
CN109810415A CN201910085070.4A CN201910085070A CN109810415A CN 109810415 A CN109810415 A CN 109810415A CN 201910085070 A CN201910085070 A CN 201910085070A CN 109810415 A CN109810415 A CN 109810415A
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flame retardant
formaldehyde resin
pentaerythrite
melamine
carbon forming
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CN109810415B (en
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孙明媚
唐林生
朱鑫
杨晶巍
何为
仇艳艳
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Ningxia Dayu New Material Technology Co ltd
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Qingdao University of Science and Technology
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Abstract

The present invention relates to a kind of using pentaerythrite modified melamine-formaldehyde resin/piperazine pyrophosphate compound as carbon forming agent, melamine cyanurate is foaming agent, ammonium polyphosphate is dehydrating agent, passes through expansion type flame retardant (IFR) made of mixing compounding.The mass fraction of the IFR each component is as follows: ammonium polyphosphate 70~80%, pentaerythrite modified melamine-formaldehyde resin 10~20%, melamine cyanurate 2~5% and piperazine pyrophosphate 7~12%.The IFR not only has good fire retardation to polypropylene, but also is substantially free of chlorine, therefore more safety and environmental protection.In addition, polypropylene flame redardant color obtained is preferable.

Description

One kind is with pentaerythrite modified melamine-formaldehyde resin/piperazine pyrophosphate compound For the expansion type flame retardant of carbon forming agent
Technical field
It is specifically a kind of with the modified trimerization of pentaerythrite the present invention relates to a kind of novel expansion type flame retardant Cyanamide formaldehyde resin/piperazine pyrophosphate compound is the expansion type flame retardant of carbon forming agent, belongs to chemical industry and high molecular material auxiliary agent Field.
Background technique
Expansion type flame retardant (IFR) is one kind by acid source (dehydrating agent), carbon source (carbon forming agent) and gas source (foaming agent) three The composite flame retardant system being grouped as has many advantages, such as that the high and low cigarette of flame retarding efficiency, low toxicity, additive amount are few, meets current fire proofing Press down the requirement of cigarette, low toxicity, and is considered as that (Tang Shuo, Jin Yujuan, Qian Lijun are swollen for the Green Flammability agent of one kind with development potential The progress Chinese Plastics of swollen type fire retardant, 2012, (8): 1-8).Nevertheless, but IFR used at present there is also resistances Fuel efficiency fruit is still poor, influences the problems such as big with the poor compatibility of polymer, on polymer physics performance.
Carbon forming agent is the basis to form expanded charred layer, is one of the key substance for influencing IFR flame retardant effect.Therefore, it opens Send out carbon forming agent novel and be always the emphasis of IFR research.
The carbon forming agent used earliest is mainly some polyols, such as pentaerythrite, dipentaerythritol, starch, mountain Pears alcohol etc..These carbon forming agents are water-soluble big, the poor compatibility with material, precipitation easy to migrate, and it is poor at charcoal and thermal stability, add Dosage is big, so that the performances degradation such as mechanics of material.These problems seriously hinder the development of IFR.To solve above ask Topic, has carried out a large amount of research to carbon forming agent both at home and abroad, many novel carbon forming agents has been developed, such as thermoplastic polyurethane carbon forming agent (Bugajny M,Bras M L,Bourbigot S,et al. Thermoplastic polyurethanes as carbonization agents in intumescent blends part 1:fire retardancy of polypropylene/ thermoplastic polyurethane/ammonium polyphosphate blends.J Fire Sci, 1999,17 (6): 494-513), thermoplastic phenolic resin carbon forming agent (Zhong Y, Wu W, Wu R, et al.The flame retarding mechanism of the novolac as char agent with the fire retardant containing phosphorous–nitrogen in thermoplastic poly(ether ester) Elastomer system.Polym Degr Stab, 2014,105 (1): 166-177), novel polyamide carbon forming agent (Yi J, Liu Y,Pan D.Synthesis,thermal degradation,and flame retardancy of a novel charring agent aliphatic—aromatic polyamide for intumescent flame retardant Polypropylene.J Appl Polym Sci, 2012,127 (2): 1061-1068) etc..These carbon forming agents are although overcome The disadvantages of traditional carbon forming agent water solubility greatly, is easily precipitated, thermal stability is poor, but it is undesirable at charcoal, thus be not widely applied.
In recent years, the successful use of macro molecular triazine carbon forming agent made the flame retardant effect of IFR be significantly improved.It has concurrently At the double action of charcoal and foaming, and the compatibility for being insoluble in water and polymer is good.The IFR being combined by it and APP is not only Flame retardant effect is more traditional to be obviously improved, and the water resistance of fire proofing and mechanical performance also significantly improve (Feng C, Zhang Y,Liu S,et al.Synthesis of novel triazine charring agent and its effect in intumescent flame-retardant polypropylene.J Appl Polym Sci,2012,123(6):3 208-3 216;Feng C,Liang M,Jiang J,et al.Synergistic effect of a novel triazine charring agent and ammonium polyphosphate on the flame retardant properties of halogen-free flame retardant polypropylene composites. Thermochimica Acta, 2016, s 627-629:83-90), therefore, triazine carbon forming agent causes extensive attention both domestic and external.At present about this kind of at charcoal There are many report of agent.Nevertheless, but this kind of carbon forming agent there is also following problems: 1) it mainly with Cyanuric Chloride, unit amine (such as ethanol amine, butylamine) and polyamine (such as ethylenediamine, piperazine) are raw material, as made from condensation and polycondensation.Due to three Polychlorostyrene cyanogen replaces not exclusively, and 1.0% or so chlorine is typically contained in product, cannot fully meet user to the Halogen of fire retardant It is required that there are still certain safety problems;2) a large amount of sodium chloride-containing waste water is generated in production process, it is difficult to administer.In addition, by A large amount of low boiling point solvent (such as acetone) is used in production process, solvent loss is big, causes serious air pollution.Exactly Due to problem of environmental pollution, the carbon forming agent also non-large-scale production at home affects its popularization and use;3) flame retardant effect and Water resistance needs to be further increased, and the water resistance of fire proofing made from it is not able to satisfy quality mark both domestic and external still It is quasi-.In view of the above problems, patent is according to the design and synthesis such as the fire retardant mechanism of IFR and the structure feature of triazine carbon forming agent one kind Novel macro molecular triazine carbon forming agent-pentaerythrite modified melamine-formaldehyde resin (season such as Tang Linsheng, Zhu Xin, Yang Jingwei penta Tetrol modified melamine-formaldehyde resin and preparation method thereof, number of patent application: 201910072232.0,2019-01-25). Pentaerythrite is grafted on melamine resin by the carbon forming agent by being etherified, and not only successfully solves pentaerythrite water The problems such as dissolubility is big, poor compatibility with polymer, and it had not only contained pentaerythrite structural unit, but also contained triazine ring structure Unit, thus have into charcoal and foaming effect concurrently.But the thermal stability of pentaerythrite modified melamine-formaldehyde resin and at charcoal Property slightly worse, weightlessness only 210 DEG C or so of thermal decomposition temperature of 2%, it is less desirable separately as the effect of carbon forming agent, and fire-retardant production Product Yi Bianhuang.
Summary of the invention
In view of the above problems, inventor of the invention is to using pentaerythrite modified melamine-formaldehyde resin as carbon forming agent IFR formula and preparation method conduct in-depth research, as a result, it has been found that passing through compound thermal stability and the pyrophosphoric acid good at charcoal Piperazinyl instinct overcomes the shortcomings that pentaerythrite modified melamine-formaldehyde resin is as carbon forming agent, and with pentaerythrite modified three Melamine-formaldehyde resin/piperazine pyrophosphate compound is carbon forming agent, and melamine cyanurate is foaming agent, and ammonium polyphosphate is Dehydrating agent, by mixing the IFR for compounding out and there is good fire retardation to polypropylene.
The composition of the IFR and the mass fraction of each component are as follows:
Further, the pentaerythrite modified melamine-formaldehyde resin is with melamine, paraformaldehyde and season Penta tetrol is raw material, is prepared by three-step reactions such as methylolation, polycondensation and etherificates.
The IFR not only has good fire retardation to polypropylene, but also is substantially free of chlorine, therefore more safety and environmental protection. In addition, fire-retardant PP color obtained is preferable.
Specific embodiment
Hereinafter, preferred embodiments of the present invention will be described, it should be understood that preferred embodiment described herein is only used In the description and interpretation present invention, it is not intended to limit the present invention.
Unless otherwise indicated, percentage employed in the present invention is mass percent.
Polypropylene (abbreviation PP) used herein is the PP of asphalt in Shenli Refinery, Co., Ltd, Sinopec production SP179 type copolymer polypropylene and the PP H8020 of China National Petroleum share Chemical Co., Ltd.'s Lanzhou Petrochemical Company production are equal Poly- polypropylene, the two w in mass ratio (PP SP179): w (PP H8020)=3:1 are used in mixed way;Ammonium polyphosphate (abbreviation APP) and Melamine cyanurate (MCA) is Shouguang WeiDong Chemical Co., Ltd.'s production;Piperazine pyrophosphate is the research of Sichuan fine chemistry industry Designing institute's production;The self-control of pentaerythrite modified melamine-formaldehyde resin.
The preparation of fire-retardant PP sample: by PP and IFR by certain mass ratio at double screw extruder (20~30rpm of revolving speed) In at 190~200 DEG C squeeze out mix, be granulated.Particle after drying is using tablet press machine in 200~210 DEG C, 5MPa pressure lower die It is molded, it is subsequently placed under 5MPa pressure and is cold-pressed, then be cut into the batten of required specification for performance test use.
Flame retardant property test: limit oxygen index (LOI) is using (the Jiangning county's analysis of JF-3 type oxygen index measurer Instrument plant) it is measured according to GB/T2046-1993, test sample is having a size of 100mm × 6.5mm × 1.6mm;Testing vertical flammability is adopted It is tested with CZF-3 type horizontal vertical burning analyzer (analysis instrument factory, Jiangning county) with reference to GB/T2408-1996, sample Having a size of 100mm × 13mm × 1.6mm.
Embodiment 1
The preparation of pentaerythrite modified melamine-formaldehyde resin, the specific steps are as follows:
126g (1.0mol) melamine, 225g (7.5mol) paraformaldehyde and 1L deionized water are added equipped with reflux In the 2L three-necked flask of condenser pipe, blender and thermometer, material pH is adjusted with the sodium hydroxide solution that mass fraction is 10% To 9 or so, 75 DEG C of reaction 1h are then heated to.Temperature of charge is then down to 55 DEG C, adds 613g (4.5mol) Ji Wusi Alcohol adjusts material pH to 1.5 or so with the hydrochloric acid that mass fraction is 20%, and in 55 ± 5 DEG C of reaction 2.5h, then is warming up to 80 ± 5 DEG C of the reaction was continued 2h.Material pH to 9 or so is adjusted with the sodium hydroxide solution that mass fraction is 10% after reaction, it is cold But it to room temperature, filters, filter cake is washed 3 times with the deionized water of 1L × 3, and gained filter cake obtains 292g white powder in 150 DEG C of dry 3h Shape product.The yield of product is 99.2%, and the solubility of product is 0.22g/100mL water, temperature when product weightlessness 2% (T2wt%), 5% when temperature (T5wt%), 10% when temperature (T10wt%) and temperature (T when maximum heat weight loss ratemax) respectively It is 213.1 DEG C, 235.4 DEG C, 256.0 DEG C and 357.0 DEG C.
Embodiment 2
It is a kind of to be hindered by the intumescent of carbon forming agent of pentaerythrite modified melamine-formaldehyde resin/piperazine pyrophosphate compound Agent is fired, forms and the quality of each component is as follows: ammonium polyphosphate 750g, pentaerythrite modified melamine-formaldehyde resin 130g, Melamine cyanurate 30g, piperazine pyrophosphate 90g.Conventional powder mixer or high-speed mixer and mixing is added in the above component 10~20min obtains IFR.
Flame retardant property evaluation test is carried out by previously described method to the above IFR, the results are shown in Table 1.In table 1 The result shows that IFR made from the present embodiment has good flame retardant effect to PP, when its additive amount accounts for the 28% of material gross mass When, testing vertical flammability is just by V-0 grades, t1And t1It is only respectively 1.12s and 2.45s, and the color of fire-retardant PP is not apparent from change It is yellow.
Embodiment 3
It is a kind of to be hindered by the intumescent of carbon forming agent of pentaerythrite modified melamine-formaldehyde resin/piperazine pyrophosphate compound Agent is fired, forms and the quality of each component is as follows: ammonium polyphosphate 750g, pentaerythrite modified melamine-formaldehyde resin 110g, Melamine cyanurate 30g, piperazine pyrophosphate 110g.Conventional powder mixer or high-speed mixer and mixing is added in the above component 10~20min obtains IFR.
Flame retardant property evaluation test is carried out by previously described method to the above IFR, the results are shown in Table 1.In table 1 The result shows that IFR made from the present embodiment also has good flame retardant effect to PP, but flame retardant effect is slightly worse than embodiment 1, when When its additive amount accounts for the 28% of material gross mass, testing vertical flammability is only by V-1 grades, t1And t1Respectively 5.24s and 10.63s, but the color of fire-retardant PP is whiter.
Embodiment 4
It is a kind of to be hindered by the intumescent of carbon forming agent of pentaerythrite modified melamine-formaldehyde resin/piperazine pyrophosphate compound Agent is fired, forms and the quality of each component is as follows: ammonium polyphosphate 750g, pentaerythrite modified melamine-formaldehyde resin 130g, Melamine cyanurate 50g, piperazine pyrophosphate 70g.Conventional powder mixer or high-speed mixer and mixing is added in the above component 10~20min obtains IFR.
Flame retardant property evaluation test is carried out by previously described method to the above IFR, the results are shown in Table 1.In table 1 The result shows that IFR made from the present embodiment also has preferable flame retardant effect to PP, but flame retardant effect is worse than embodiment 1 and reality Example 2 is applied, when its additive amount accounts for the 28% of material gross mass, testing vertical flammability is only by V-2 grades, t1And t1Only it is respectively 7.74s and 17.58s, and dripped when burning.
Comparative example 1
It is a kind of using pentaerythrite modified melamine-formaldehyde resin as the expansion type flame retardant of carbon forming agent, composition and each group The quality divided is as follows: ammonium polyphosphate 750g, pentaerythrite modified melamine-formaldehyde resin 220g, melamine cyanurate 30g.Conventional powder mixer is added in the above component or 10~20min of high-speed mixer and mixing obtains IFR.
Flame retardant property evaluation test is carried out by previously described method to the above IFR, the results are shown in Table 1.In table 1 The result shows that IFR made from the present embodiment also has preferable flame retardant effect to PP, but flame retardant effect is significantly worse than embodiment, When its additive amount accounts for the 30% of material gross mass, testing vertical flammability could be by V-0 grades, and the color of fire-retardant PP slightly becomes It is yellow.
The flame retardant property of the fire-retardant PP of table 1
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention, Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features. All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention Within protection scope.

Claims (3)

1. a kind of expansion type flame retardant, which is characterized in that with pentaerythrite modified melamine-formaldehyde resin/piperazine pyrophosphate Compound is carbon forming agent, and melamine cyanurate is foaming agent, and ammonium polyphosphate is dehydrating agent, by swollen made of mixing compounding Swollen type fire retardant.
2. expansion type flame retardant according to claim 1, which is characterized in that the mass fraction of each component is as follows: polyphosphoric acid Ammonium 70~80%, pentaerythrite modified melamine-formaldehyde resin 10~20%, melamine cyanurate 2~5% and burnt phosphorus Mcpp acid 7~12%.
3. expansion type flame retardant according to claim 1, which is characterized in that the pentaerythrite modified cyanurotriamide first Urea formaldehyde is to be made using melamine, paraformaldehyde and pentaerythrite as raw material by methylolation, polycondensation and etherification reaction.
CN201910085070.4A 2019-01-29 2019-01-29 Intumescent flame retardant taking pentaerythritol modified melamine formaldehyde resin/piperazine pyrophosphate compound as char forming agent Active CN109810415B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113845725A (en) * 2021-10-19 2021-12-28 青岛塑科高分子科技有限公司 Flame-retardant polypropylene material with good water resistance and preparation method thereof
CN114015115A (en) * 2021-10-25 2022-02-08 沈阳工业大学 Preparation method of intumescent flame retardant based on piperazine pyrophosphate/melamine cyanurate/ammonium polyphosphate

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102304250A (en) * 2011-09-07 2012-01-04 上海日之升新技术发展有限公司 High-melt-index halogen-free flame-retarding polypropylene and preparation method thereof

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102304250A (en) * 2011-09-07 2012-01-04 上海日之升新技术发展有限公司 High-melt-index halogen-free flame-retarding polypropylene and preparation method thereof

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
《化工百科全书》编辑委员会编: "《化工百科全书 第1卷 锕系元素的锕系后元素-丙烯酰胺聚合物 a-bing》", 30 December 1990, 化学工业出版社 *
唐海珊: "哌嗪类磷酸盐的合成及其在阻燃聚丙烯中的应用研究", 《中国优秀硕士学位论文全文数据库工程科技Ⅰ辑》 *
朱健生等: "密胺甲醛树脂包覆改性聚磷酸铵", 《高分子材料科学与工程》 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113845725A (en) * 2021-10-19 2021-12-28 青岛塑科高分子科技有限公司 Flame-retardant polypropylene material with good water resistance and preparation method thereof
CN113845725B (en) * 2021-10-19 2023-03-21 青岛塑科高分子科技有限公司 Flame-retardant polypropylene material with good water resistance and preparation method thereof
CN114015115A (en) * 2021-10-25 2022-02-08 沈阳工业大学 Preparation method of intumescent flame retardant based on piperazine pyrophosphate/melamine cyanurate/ammonium polyphosphate
CN114015115B (en) * 2021-10-25 2023-03-28 沈阳工业大学 Preparation method of intumescent flame retardant based on piperazine pyrophosphate/melamine cyanurate/ammonium polyphosphate

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