CN109749383A - A kind of method of composite flame-retardant agent modified unsaturated polyester - Google Patents

A kind of method of composite flame-retardant agent modified unsaturated polyester Download PDF

Info

Publication number
CN109749383A
CN109749383A CN201711118764.0A CN201711118764A CN109749383A CN 109749383 A CN109749383 A CN 109749383A CN 201711118764 A CN201711118764 A CN 201711118764A CN 109749383 A CN109749383 A CN 109749383A
Authority
CN
China
Prior art keywords
unsaturated polyester
solution
ammonium polyphosphate
mixing
composite flame
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201711118764.0A
Other languages
Chinese (zh)
Inventor
喻源
蒋梦玮
李昌新
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nanjing Tech University
Original Assignee
Nanjing Tech University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nanjing Tech University filed Critical Nanjing Tech University
Priority to CN201711118764.0A priority Critical patent/CN109749383A/en
Publication of CN109749383A publication Critical patent/CN109749383A/en
Pending legal-status Critical Current

Links

Landscapes

  • Compositions Of Macromolecular Compounds (AREA)
  • Macromonomer-Based Addition Polymer (AREA)

Abstract

The invention discloses a kind of method of composite flame-retardant agent modified unsaturated polyester, mainly includes the following steps: that (1) ammonium polyphosphate is uniformly mixed under agitation with unsaturated polyester (UP), then obtain ammonium polyphosphate modifying after initiator solidifies;(2) unsaturated polyester (UP) is modified to get modified unsaturated poly- to a kind of composite flame-proof through montmorillonite, zinc borate, two formicester of methyl acid phosphate, ammonium polyphosphate modifying and initiator respectively.Compared with prior art, composite flame-retardant agent of the invention and unsaturated polyester (UP) have good compatibility, can greatly improve ammonium polyphosphate dispersibility in the base and interface interaction, have significant cooperative flame retardant effect.

Description

A kind of method of composite flame-retardant agent modified unsaturated polyester
Technical field
The present invention relates to flame retarded polymeric material technical fields, and in particular to a kind of composite flame-retardant agent modified unsaturated polyester Method.
Background technique
Unsaturated polyester resin is a kind of linear polymer with ester bond and unsaturated double-bond, usually by two What first carboxylic acid and dihydric alcohol were synthesized by polycondensation reaction.Unsaturated polyester (UP) aggressiveness, which is generally dissolved in styrene, forms solution, The thermosetting resin patent CN102838779A for being formed by curing three-dimensional-structure through initiator initiation when use discloses a kind of compound Type expanding fire retardant modified heat convertible resin.The mixed solution of phosphorus oxychloride and dioxane is added to expansible graphite and two Six ring of oxygen is uniformly mixed, and polyalcohol and catalyst is added, obtains a kind of phosphorous organic expander type fire retardant, but in the technique mistake Fire retardant compatibility is bad in journey.Patent CN105384387A discloses a kind of composite flame-retardant agent and its preparation method and application, But fire retardant additive amount is big in the technical process.Unsaturated polyester resin is that thermosetting plastics purposes is most widely a kind of, Since with easy to process, raw material, the excellent performances such as cheap, waterproof and oilproof, resistant to chemical etching are widely used in communications and transportation for it Industry (vehicle internal/external and other structures component, the various helmets, traffic sign etc.), urban duct facility (pipeline, cabinet, Switch etc.), building construction (door and window, dining table seat, ornament materials, plate, fire-fighting equipment etc.), power industry (small members, electricity Device switch, cover, motor blade etc.) and the fields such as medical, building materials, craftwork, dress ornament, sport, light industry device village (referring to document Baljinder K.Kandola, John R.Ebdon, Piyanuch Luangtriratana, Latha Krishnan.Polymer Degradation and Stability, 2016,127:56-64.).Therefore, it is related to unsaturated poly- The product of ester resin plays irreplaceable role in various fields of recent life.
Ammonium polyphosphate is a kind of aggretion type inorganic phosphate esters fire retardant, and general formula is (NH4)n+2PnO3n+1, theoretical phosphorus, Nitrogen content is respectively 31.92wt% and 14.44wt%, is widely used in the fire-retardant of the polymer materials such as plastics, fiber, rubber. When the polymer material containing ammonium polyphosphate is subjected to fire, ammonium polyphosphate will resolve into polyphosphoric acid and ammonia first, then more phosphorus Acid is reacted with hydroxyl or other synergist groups such as ethoxy cyanurate or ring urea formaldehyde resin, forms unstable phosphoric acid Ester.
It in phosphate dehydration, will carbonize comprising formed in the surface of polymer material and resist heat source Carbon foam.In addition, viscous molten layer or watch crystal can also be obtained on polymer surfaces in addition to forming carbon foam, protect Polymer material is protected from heat and oxygen.In flame retardant thermoset resins such as unsaturated polyester (UP) and epoxy resin, ammonium polyphosphate can To be used alone.However, ammonium polyphosphate has very strong hydrophily and a degree of layering, the layering in use process can drop The anti-flammability of low material.In addition, the poor compatibility of ammonium polyphosphate and polymer, this will damage the mechanical performance of material.In order to gram The shortcomings that taking above-mentioned ammonium polyphosphate, the present invention have carried out corresponding modification to ammonium polyphosphate.
Montmorillonite layer has very strong fixed function to unsaturated polyester (UP) molecule, and the barrier action of montmorillonite layer can To prevent the transmission of heat and combustible volatile, promote polymer at charcoal, simultaneously because cannot fire completely after polymer matrix is heated It burns and is converted into more charcoal residues.Anti-flammability mostlys come from montmorillonite layer to the barrier action and burning of interlayer macromolecular The formed layer of charcoal in surface it is heat-insulated, every matter act on (referring to document Goodarzi V, Monemian S A, Angaji M T, et Al.Journal of applied polymer science, 2008,110 (5): 2971-2979.).
The compactness of layer of charcoal can be enhanced in zinc borate, this will easily discharge water at relatively high temperatures and form boric acid, to promote The formation of pyrolytic layer in unsaturated polyester (UP).Zinc borate is a kind of multifunctional fire retardant, have it is fire-retardant, at charcoal, suppression cigarette, suppression glow With prevent from generating the multiple functions such as molten drop (referring to document Braun U, Schartel B, Fichera M A, et al.Polymer Degradation and Stability, 2007,92 (8): 1528-1545.).It can be melted at a higher temperature in solid phase Change, and form vitreum coating, isolation air effect is played on the surface of blocked polymer.
Methyl-phosphoric acid dimethyl ester, is a kind of low-viscosity liquid additive flame retardant being halogen-free, its phosphorus content is up to 25%, excellent flame retardancy is (referring to document Feng F, Qian L.Polymer Composites, 2014,35 (2): 301- 309.).In addition to excellent fireproof performance, relative to other fire retardants, there are also lower temperature resistance, plasticity, UV stable, drainings Property, self-extinguishment the advantages that, the characteristics of especially it can be used for the coating article of transparent or light graceful color, this is other resistances The characteristic that combustion agent does not have.
Summary of the invention
For the flame retardant property for improving unsaturated polyester (UP), the invention proposes a kind of composite flame-retardant agent modified unsaturated polyesters Method, specifically includes the following steps:
(1) ammonium polyphosphate is uniformly mixed under agitation with unsaturated polyester (UP) in mass ratio 1: 1;
(2) initiator is added into step (1) resulting solution under agitation, obtains solution A;
(3) it is put into drying box after solution A being infused film, pulverizes and sieves after solidification demoulding, obtains ammonium polyphosphate modifying;
(4) montmorillonite is mixed under agitation with unsaturated polyester (UP), both control mass ratio is (1~9): 68, temperature Degree is 20 DEG C~30 DEG C, and mixing time is 10min~20min, obtains solution B after mixing;
(5) zinc borate is mixed under agitation with step (4) resulting solution B, controls zinc borate dosage and step (4) mass ratio of montmorillonite is 2 in: (1~9), temperature are 20 DEG C~30 DEG C, and mixing time is 10min~20min, and mixing is equal Solution C is obtained after even;
(6) two formicester of methyl acid phosphate is added in solution C under agitation, controls two formicester of methyl acid phosphate and step (5) mass ratio of the zinc borate in is 5: 1, and temperature is 20 DEG C~30 DEG C, and mixing time is 10min~20min, after mixing Obtain solution D;
(7) step (3) resulting ammonium polyphosphate modifying is added in solution D under agitation, controls modified polyphosphoric acid The mass ratio of two formicester of methyl acid phosphate is (9~17) in ammonium and step (6): 10, temperature is 20 DEG C~30 DEG C, and mixing time is 10min~20min obtains solution after mixing;
(8) initiator will be added in step (7) resulting solution, obtains solution E, be put into drying box after infusing film, exist respectively At 80 DEG C, 110 DEG C solidify 1h and 3h, cooling and demolding to get arrive a kind of modified unsaturated polyester.
In the present invention, the initiator is benzoyl peroxide.
In the present invention, the granularity of the ammonium polyphosphate modifying is 300~400 mesh.
In the present invention, the mass ratio of the unsaturated polyester (UP) and composite flame-retardant agent is (70~100): 30.
Compared with prior art, the beneficial effect that the present invention obtains is: (1) dispersed after the modified processing of ammonium polyphosphate It is good, be not easy to be layered, and greatly improve with the compatibility of high molecular material, can greatly improve unsaturated polyester (UP) flame retardant property and Mechanical performance;(2) montmorillonite layer has very strong fixed function to unsaturated polyester (UP) molecule, and the barrier of montmorillonite layer is made With the transmission that can prevent heat and combustible volatile, promote polymer at charcoal;(3) phosphorous organic expander type fire retardant is with chemistry Bonded mode coats, and fine and close protective layer can be formed in heated and burning, so that it is excellent to assign modified unsaturated polyester Heat resistance and anti-flammability;(4) addition of zinc borate can be improved the fire-retardant and smoke suppressing of material.Therefore, prepared to change Property unsaturated polyester (UP) have excellent flame retardant property.
Detailed description of the invention
Fig. 1 is the work flow diagram of modified unsaturated polyester of the present invention;
Fig. 2 be present example 1,2,3,4,5,6,7,8 provide modified unsaturated polyester and comparative example 1 provide it is pure not The limit oxygen index column comparison diagram of saturated polyester solidfied material;
Fig. 3 is the modified unsaturated polyester that present example 1,3 and 5 provides and the pure unsaturated polyester (UP) that comparative example 1 provides TG (a) of the solidfied material in nitrogen atmosphere and DTG (b) curve;
Fig. 4 is the modified unsaturated polyester that present example 1,3 and 5 provides and the pure unsaturated polyester (UP) that comparative example 1 provides TG (a) of the solidfied material in air atmosphere and DTG (b) curve;
Fig. 5 is the modified unsaturated polyester that present example 1,3 and 5 provides and the pure unsaturated polyester (UP) that comparative example 1 provides After the oxygen index (OI) experiment of solidfied material, the stereoscan photograph of carbon residue outer surface;
Fig. 6 is the modified unsaturated polyester that present example 1 provides and the pure Cured up resin that comparative example 1 provides Average heat release rate and total heat releasing curve diagram.
Specific embodiment
To facilitate the understanding of the present invention, the present invention is made below in conjunction with Figure of description and preferred embodiment more complete Face meticulously describes, but the protection scope of the present invention is not limited to the following specific embodiments.
Unless otherwise defined, all technical terms used hereinafter and the normally understood meaning of those skilled in the art It is identical.Technical term used herein is intended merely to the purpose of description specific embodiment, is not intended to the limitation present invention Protection scope.
Except there is a special instruction, the various reagents used in the present invention, raw material be can commodity commercially or Person can the product as made from well known method.
With reference to the accompanying drawings and examples, the technical solution used to invention is further elaborated.
Comparative example 1
1, the preparation of composite flame-retardant agent modified unsaturated polyester
It is 20 DEG C~30 DEG C that the initiator benzoyl peroxide of 4g, which is added to mixing temperature in the unsaturated polyester (UP) of 196g, Mixing time is 10min~20min, obtains solution E;
It is put into drying box after solution E is infused film, for the first time with 80 DEG C of dry 1 hours;Second with 110 DEG C of solidifications 3 Hour, demoulding is taken out to get the pure sample of unsaturated polyester (UP) is arrived after being cooled to room temperature.Its TG (a) and DTG in nitrogen atmosphere (b) after curve, the TG (a) in air atmosphere and DTG (b) curve, oxygen index (OI) experiment, the scanning electron microscope of carbon residue outer surface is shone Piece, the result of viscosity test, heat release rate and total heat releasing curve diagram, limit oxygen index are respectively referring to attached drawing 1,2,3,4,5 With 6.
Referring to attached drawing 1, it is the work flow diagram of modified unsaturated polyester of the present invention.
Referring to attached drawing 2, it is the oxygen index (OI) test result figure of pure Cured up resin.It can be seen that pure unsaturation The oxygen index value of polyester is 18.9%, this shows that the anti-flammability of pure unsaturated polyester (UP) is poor.
Referring to attached drawing 3, it is TG (a) of the comparative example 1 in nitrogen atmosphere and DTG (b) curve.It can be seen that example 1 exists Degradation process in nitrogen atmosphere is divided into two Main Stages, and pure unsaturated polyester (UP) starts to degrade after 200 DEG C, the first stage It is corresponding with dehydration within the temperature range of 210-320 DEG C.However, mass loss is only about 8wt%, due to the step Mass loss very little, without apparent peak value establish on DTG curve.As the temperature rises, quick loss of weight another Stage is within the temperature range of 320-450 DEG C.The stage main weight loss is attributed to the disconnected of unsaturated polyester cross-linking structure Chain, the weight of residual coke is smaller after 500 DEG C.
Referring to attached drawing 4, it is TG (a) of the comparative example 1 in air atmosphere and DTG (b) curve.With phase under nitrogen atmosphere Than the TG curve of pure unsaturated polyester (UP) is presented in entire degradation process due to the further decomposition of the charcoal of formation in air Three phases.Therefore, from DTG curve, occurs another mass loss wave within the temperature range of 450-550 DEG C.
Referring to attached drawing 5, it is the sem image of pure Cured up resin charring layer after oxygen index (OI) test.It can see Out there are many wide about 100 μm of netted apertures and many irregular micro- in the surface of pure Cured up resin carbonaceous layer See aperture.This unsound carbonaceous layer not can effectively prevent heat and penetrate the polymer being heated from flame zone and pass to substrate.
Referring to attached drawing 6, it be the modified unsaturated polyester that comparative example 1 and example 1 of the present invention provide heat release rate and Total heat releasing curve diagram.It can be found that composite flame-retardant agent addition modified unsaturated polyester is significantly reduced peak heat release rate. The peak heat release rate that comparative example 1 obtains is 581kW/m2.Comparative example 1 rapidly and efficiently produces the spike of heat release rate The peak and.On the other hand, the heat release rate peak value of comparative example 1 is higher and relatively narrow.
Embodiment 1
1, the preparation of composite flame-retardant agent modified unsaturated polyester
The montmorillonite of 2g being added in the unsaturated polyester (UP) of 136g, is uniformly mixed, mixing temperature is 20 DEG C~30 DEG C, Mixing time is 10min~20min, obtains solution B;
It is 1: 2 by montmorillonite and zinc borate mass ratio, the zinc borate of 4g is added in above-mentioned solution A, is stirred Even, mixing temperature is 20 DEG C~30 DEG C, and mixing time is 10min~20min, obtains solution C;
It is 1: 5 by zinc borate and methyl acid phosphate diformazan rouge mass ratio, two formicester of methyl acid phosphate of 20g is added to above-mentioned molten It in liquid C, is uniformly mixed, mixing temperature is 20 DEG C~30 DEG C, and mixing time is 10min~20min, obtains solution D;
It is 17: 10 by ammonium polyphosphate modifying and methyl acid phosphate diformazan rouge mass ratio, the ammonium polyphosphate modifying of 34g is added to It in above-mentioned solution D, is uniformly mixed, mixing temperature is 20 DEG C~30 DEG C, and mixing time is 10min~20min, is obtained molten Liquid;The benzoyl peroxide initiator that 4g is added in solution again obtains solution E after mixing evenly.
It is put into drying box after solution E is infused film, for the first time with 80 DEG C of dry 1 hours;Second with 110 DEG C of solidifications 3 Hour, it demoulds and takes out after being cooled to room temperature, obtain modified unsaturated polyester.Solidify the typical performance of unsaturated polyester (UP) respectively referring to Attached drawing 1,2,3,4,5 and 6.
TGA data of the table 1 under air and nitrogen atmosphere
Referring to attached drawing 1, it is the work flow diagram of modified unsaturated polyester of the present invention.
Referring to attached drawing 2, it is composite flame-proof modified unsaturated polyester provided by the invention and the pure insatiable hunger that comparative example 1 provides With the oxygen index (OI) test result figure of polyester.It can be seen that the oxygen index (OI) of example 1 is 31.25, oxygen index (OI) highest.
Referring to attached drawing 3, it is present example, 1,3, the 5 composite flame-proof modified unsaturated polyester material provided and comparison TG (a) and DTG (b) curve of the pure unsaturated polyester (UP) that example 1 provides in nitrogen atmosphere, typical data is referring to table 1.It can send out The thermal oxide decomposable process and comparative example 1 of real example 1 have the similar stage, however, by the way that composite flame-retardant agent is modified insatiable hunger And polyester, decompose significant change.With T of the comparative example 1 at 308 DEG C0.1Compare, example 1 is at a lower temperature than comparative example 1 It is early to decompose.It is worth noting that example 1 has minimum decomposition temperature compared with other samples.The T of example 1maxLower than comparative example 1, the composite flame-retardant agent of ammonium polyphosphate modifying can reduce biggest quality loss late, show that example 1 is decomposed slowly than comparative example 1.With The thermal stability of the increase of montmorillonite amount, modified unsaturated polyester is high.The significant increase of residue at 350 DEG C than 500 DEG C.It is real Coke yield of the example 1 at 800 DEG C is 31.3wt%, much higher than the 1.7wt% of ratio 1.The coke of formation will limit combustible gas The release of body and the thermal conductivity for reducing incendiary material, therefore the combustibility of material can be delayed.
Referring to attached drawing 4, it is the composite flame-proof modified unsaturated polyester material and comparative example 1 that present example 1,3,5 provides TG (a) and DTG (b) curve of the pure unsaturated polyester (UP) provided in air atmosphere, typical data is referring to table 1.It can be found that When example 1 and comparative example 1 are assessed in air atmosphere, degradation behavior is different from the degradation behavior in nitrogen.It is obvious that Replace the thermal degradation mechanism of non-oxidizing atmosphere promotion sample by air.The heat drop of the modified unsaturated polyester (UP) of composite flame-retardant agent Solution preocess has similar three phases with comparative example 1.However, by by different amounts of zinc borate, montmorillonite, ammonium polyphosphate modifying Carry out modified unsaturated polyester and also reduces degradative pathway.Compared with comparative example 1, the T of example0.1Temperature in each case is all It is lower.The T of example 10.1Minimum 171 DEG C.
Referring to attached drawing 5, it is the composite flame-proof modified unsaturated polyester material and comparative example 1 that present example 1,3,5 provides The sem image of the pure unsaturated polyester (UP) provided charring layer after oxygen index (OI) test.Can clearly find, this four samples it Between there are great differences.As shown in figure (a), it can be observed that the structure of relative loose and multiple depth crackle in comparative example 1, and And there are many macropores for distribution on the surface.For the coke residue figure (b, d) of example 1 and example 5, form more swelling and cause It is close.The honeycomb charcoal of example 1 and example 5 can the significant quality and energy transmission reduced in combustion process, thus to be following Material provides better anti-flammability, and improves the anti-flammability of unsaturated polyester (UP).
Referring to attached drawing 6, it be the modified unsaturated polyester that comparative example 1 and example 1 of the present invention provide heat release rate and Total heat releasing curve diagram.It can be found that composite flame-retardant agent addition modified unsaturated polyester is significantly reduced peak heat release rate. The peak heat release rate that comparative example 1 obtains is 581kW/m2, and it is 280kW/m that example 1, which obtains lower peak heat release rate,2.It is right Ratio 1 rapidly and efficiently produces spike and the peak of heat release rate.On the other hand, modified not containing composite flame-retardant agent The heat release rate peak value of saturated polyester example 1 is lower and wider, and burning time also extends.
Embodiment 2
1, the preparation of composite flame-retardant agent modified unsaturated polyester
The montmorillonite of 10g is added in the unsaturated polyester (UP) of 136g, is uniformly mixed, mixing temperature is 20 DEG C~30 DEG C, mixing time is 10min~20min, obtains solution B;
It is 1: 2 by montmorillonite and methyl acid phosphate diformazan rouge mass ratio, two formicester of methyl acid phosphate of 20g is added to above-mentioned molten It in liquid B, is uniformly mixed, mixing temperature is 20 DEG C~30 DEG C, and mixing time is 10min~20min, obtains solution D;
It is 3: 2 by ammonium polyphosphate modifying and methyl acid phosphate diformazan rouge mass ratio, the ammonium polyphosphate modifying of 30g is added to It states in solution D, is uniformly mixed, mixing temperature is 20 DEG C~30 DEG C, and mixing time is 10min~20min, obtains solution; The benzoyl peroxide initiator that 4g is added in solution again obtains solution E after mixing evenly.
It is put into drying box after solution E is infused film, for the first time with 80 DEG C of dry 1 hours;Second with 110 DEG C of solidifications 3 Hour, it demoulds and takes out after being cooled to room temperature, obtain modified unsaturated polyester.Solidify the typical performance of unsaturated polyester (UP) respectively referring to Attached drawing 2.
Referring to attached drawing 2, it is composite flame-proof modified unsaturated polyester provided by the invention and the pure insatiable hunger that comparative example 1 provides With the oxygen index (OI) test result figure of polyester.It can be seen that the oxygen index (OI) of example 2 is 30.12, with comparative example after being added to fire retardant 1 oxygen index (OI) is compared for 18.9 and is significantly improved.
Embodiment 3
1, the preparation of composite flame-retardant agent modified unsaturated polyester
The montmorillonite of 6g being added in the unsaturated polyester (UP) of 136g, is uniformly mixed, mixing temperature is 20 DEG C~30 DEG C, Mixing time is 10min~20min, obtains solution B;
It is 3: 10 by montmorillonite and methyl acid phosphate diformazan rouge mass ratio, two formicester of methyl acid phosphate of 20g is added to above-mentioned It in solution B, is uniformly mixed, mixing temperature is 20 DEG C~30 DEG C, and mixing time is 10min~20min, obtains solution D;
It is 17: 10 by ammonium polyphosphate modifying and methyl acid phosphate diformazan rouge mass ratio, the ammonium polyphosphate modifying of 34g is added to It in above-mentioned solution D, is uniformly mixed, mixing temperature is 20 DEG C~30 DEG C, and mixing time is 10min~20min, is obtained molten Liquid;The benzoyl peroxide initiator that 4g is added in solution again obtains solution E after mixing evenly.
It is put into drying box after solution E is infused film, for the first time with 80 DEG C of dry 1 hours;Second with 110 DEG C of solidifications 3 Hour, it demoulds and takes out after being cooled to room temperature, obtain modified unsaturated polyester.Solidify the typical performance of unsaturated polyester (UP) respectively referring to Attached drawing 2,3,4 and 5.
Referring to attached drawing 2, it is composite flame-proof modified unsaturated polyester provided by the invention and the pure insatiable hunger that comparative example 1 provides With the oxygen index (OI) test result figure of polyester.It can be seen that the oxygen index (OI) of example 3 is 30.49, the oxygen index (OI) with comparative example 1 is 18.9 Compared to being significantly improved.
Referring to attached drawing 3, it is present example, 1,3, the 5 composite flame-proof modified unsaturated polyester material provided and comparison TG (a) and DTG (b) curve of the pure unsaturated polyester (UP) that example 1 provides in nitrogen atmosphere, typical data is referring to table 1.Example 3 TmaxThe composite flame-retardant agent of slightly below comparative example 1, ammonium polyphosphate modifying can reduce biggest quality loss late, show that example 3 compares Ratio 1 is decomposed slowly.With the increase of montmorillonite amount, the thermal stability of modified unsaturated polyester is high.At 350 DEG C than 500 DEG C The significant increase of residue.Coke yield of the example 3 at 800 DEG C is 35wt%, much higher than the 1.7wt% of ratio 1.
Referring to attached drawing 4, it is the composite flame-proof modified unsaturated polyester material and comparative example that present example 1,3,5 provides TG (a) and DTG (b) curve of the 1 pure unsaturated polyester (UP) provided in air atmosphere, typical data is referring to table 1.It can be found that When example 3 and comparative example 1 are assessed in air atmosphere, compared with comparative example 1, the T of example 30.1Temperature in each case It spends all lower.The T of example 30.1It is 173 DEG C.
Referring to attached drawing 5, it is the composite flame-proof modified unsaturated polyester material and comparative example 1 that present example 1,3,5 provides The sem image of the pure unsaturated polyester (UP) provided charring layer after oxygen index (OI) test.Can clearly find, this four samples it Between there are great differences.For the coke residue figure (c) of example 3, the structure of relative smooth and pyknosis is observed, due to by The reaction of formation and the montmorillonite of the phosphoric acid that the decomposition reaction of methyl-phosphoric acid dimethyl ester generates, cheating engaging layer is to unsaturated polyester (UP) point Son has very strong fixed effect.
Embodiment 4
1, the preparation of composite flame-retardant agent modified unsaturated polyester
The montmorillonite of 14g is added in the unsaturated polyester (UP) of 136g, is uniformly mixed, mixing temperature is 20 DEG C~30 DEG C, mixing time is 10min~20min, obtains solution B;
It is 7: 10 by montmorillonite and methyl acid phosphate diformazan rouge mass ratio, two formicester of methyl acid phosphate of 20g is added to above-mentioned It in solution B, is uniformly mixed, mixing temperature is 20 DEG C~30 DEG C, and mixing time is 10min~20min, obtains solution D;
It is 13: 10 by ammonium polyphosphate modifying and methyl acid phosphate diformazan rouge mass ratio, the ammonium polyphosphate modifying of 26g is added to It in above-mentioned solution D, is uniformly mixed, mixing temperature is 20 DEG C~30 DEG C, and mixing time is 10min~20min, is obtained molten Liquid;The benzoyl peroxide initiator that 4g is added in solution again obtains solution E after mixing evenly.
It is put into drying box after solution E is infused film, for the first time with 80 DEG C of dry 1h;For the second time with 110 DEG C of dry 3h, it is cooled to It demoulds and takes out after room temperature, obtain modified unsaturated polyester.Solidify the typical performance of unsaturated polyester (UP) respectively referring to attached drawing 2.
Referring to attached drawing 2, it is composite flame-proof modified unsaturated polyester provided by the invention and the pure insatiable hunger that comparative example 1 provides With the oxygen index (OI) test result figure of polyester.It can be seen that the oxygen index (OI) of example 4 is 27.4, the oxygen index (OI) of example 4 is than comparative example 1 It is low.
Embodiment 5
1, the preparation of composite flame-retardant agent modified unsaturated polyester
The montmorillonite of 6g being added in the unsaturated polyester (UP) of 136g, is uniformly mixed, mixing temperature is 20 DEG C~30 DEG C, Mixing time is 10min~20min, obtains solution B;
It is 3: 2 by montmorillonite and zinc borate mass ratio, the zinc borate of 4g is added in above-mentioned solution B, is stirred Even, mixing temperature is 20 DEG C~30 DEG C, and mixing time is 10min~20min, obtains solution C;
It is 1: 5 by zinc borate and methyl acid phosphate diformazan rouge mass ratio, two formicester of methyl acid phosphate of 20g is added to above-mentioned molten It in liquid C, is uniformly mixed, mixing temperature is 20 DEG C~30 DEG C, and mixing time is 10min~20min, obtains solution D;
It is 3: 2 by ammonium polyphosphate modifying and methyl acid phosphate diformazan rouge mass ratio, the ammonium polyphosphate modifying of 30g is added to It states in solution D, is uniformly mixed, mixing temperature is 20 DEG C~30 DEG C, and mixing time is 10min~20min, obtains solution; The benzoyl peroxide initiator that 4g is added in solution again obtains solution E after mixing evenly.
It is put into drying box after solution E is infused film, for the first time with 80 DEG C of dry 1 hours;Second with 110 DEG C of solidifications 3 Hour, it demoulds and takes out after being cooled to room temperature, obtain modified unsaturated polyester.Solidify the typical performance of unsaturated polyester (UP) respectively referring to Attached drawing 2,3,4 and 5.
Referring to attached drawing 2, it is composite flame-proof modified unsaturated polyester provided by the invention and the pure insatiable hunger that comparative example 1 provides With the oxygen index (OI) test result figure of polyester.It can be seen that from example 5 to example 8, with the reduction and illiteracy of ammonium polyphosphate modifying amount The increase of de- soil amount, oxygen index value reduce, and the efficiency for reflecting ammonium polyphosphate modifying fire retardant is higher than montmorillonite.With montmorillonite Increase, oxygen index (OI) is gradually reduced.The dispersion of montmorillonite and the property of aggregation difference make composite material reach layered structure.Work as addition It is flammable therefore improve that as was expected when excessive montmorillonite.
Referring to attached drawing 3, it is present example, 1,3, the 5 composite flame-proof modified unsaturated polyester material provided and comparison TG (a) and DTG (b) curve of the pure unsaturated polyester (UP) that example 1 provides in nitrogen atmosphere, typical data is referring to table 1.It can send out The thermal oxide decomposable process and comparative example 1 of real example 5 have the similar stage, however the residue at 350 DEG C than 500 DEG C is aobvious Increase.Coke yield of the example 5 at 800 DEG C is 31.6wt%, much higher than the 1.7wt% of ratio 1.The coke of formation will limit The release of fuel gas processed and the thermal conductivity for reducing incendiary material, therefore the combustibility of material can be delayed.
Referring to attached drawing 4, it is the composite flame-proof modified unsaturated polyester material and comparative example 1 that present example 1,3,5 provides TG (a) and DTG (b) curve of the pure unsaturated polyester (UP) provided in air atmosphere, typical data is referring to table 1.It can be found that When example 5 and comparative example 1 are assessed in air atmosphere, degradation behavior is different from the degradation behavior in nitrogen.
Referring to attached drawing 5, it is the composite flame-proof modified unsaturated polyester material and comparative example 1 that present example 1,3,5 provides The sem image of the pure unsaturated polyester (UP) provided charring layer after oxygen index (OI) test.For the coke residue figure (d) of example 5, Form more swelling and densification.The honeycomb charcoal of example 5 can it is significant reduce combustion process in quality and energy transmission, thus Better anti-flammability is provided for following material, and improves the anti-flammability of unsaturated polyester (UP).
Example 6
1, the preparation of composite flame-retardant agent modified unsaturated polyester
The montmorillonite of 10g is added in the unsaturated polyester (UP) of 136g, is uniformly mixed, mixing temperature is 20 DEG C~30 DEG C, mixing time is 10min~20min, obtains solution B;
It is 5: 2 by montmorillonite and zinc borate mass ratio, the zinc borate of 4g is added in above-mentioned solution B, is stirred Even, mixing temperature is 20 DEG C~30 DEG C, and mixing time is 10min~20min, obtains solution C;
It is 1: 5 by zinc borate and methyl acid phosphate diformazan rouge mass ratio, two formicester of methyl acid phosphate of 20g is added to above-mentioned molten It in liquid C, is uniformly mixed, mixing temperature is 20 DEG C~30 DEG C, and mixing time is 10min~20min, obtains solution D;
It is 13: 10 by ammonium polyphosphate modifying and methyl acid phosphate diformazan rouge mass ratio, the ammonium polyphosphate modifying of 26g is added to It in above-mentioned solution D, is uniformly mixed, mixing temperature is 20 DEG C~30 DEG C, and mixing time is 10min~20min, is obtained molten Liquid;The benzoyl peroxide initiator that 4g is added in solution again obtains solution E after mixing evenly.
It is put into drying box after solution E is infused film, for the first time with 80 DEG C of dry 1 hours;Second with 110 DEG C of solidifications 3 Hour, it demoulds and takes out after being cooled to room temperature, obtain modified unsaturated polyester.Solidify the typical performance of unsaturated polyester (UP) respectively referring to Attached drawing 2.
Referring to attached drawing 2, it is composite flame-proof modified unsaturated polyester provided by the invention and the pure insatiable hunger that comparative example 1 provides With the oxygen index (OI) test result figure of polyester.The oxygen index (OI) of example 6 is 29.41.
Embodiment 7
1, the preparation of composite flame-retardant agent modified unsaturated polyester
The montmorillonite of 14g is added in the unsaturated polyester (UP) of 136g, is uniformly mixed, mixing temperature is 20 DEG C~30 DEG C, mixing time is 10min~20min, obtains solution B;
It is 7: 2 by montmorillonite and zinc borate mass ratio, the zinc borate of 4g is added in above-mentioned solution B, is stirred Even, mixing temperature is 20 DEG C~30 DEG C, and mixing time is 10min~20min, obtains solution C;
It is 1: 5 by zinc borate and methyl acid phosphate diformazan rouge mass ratio, two formicester of methyl acid phosphate of 20g is added to above-mentioned molten It in liquid B, is uniformly mixed, mixing temperature is 20 DEG C~30 DEG C, and mixing time is 10min~20min, obtains solution D;
It is 11: 10 by ammonium polyphosphate modifying and methyl acid phosphate diformazan rouge mass ratio, the ammonium polyphosphate modifying of 22g is added to It in above-mentioned solution D, is uniformly mixed, mixing temperature is 20 DEG C~30 DEG C, and mixing time is 10min~20min, is obtained molten Liquid;The benzoyl peroxide initiator that 4g is added in solution again obtains solution E after mixing evenly.
It is put into drying box after solution E is infused film, for the first time with 80 DEG C of dry 1 hours;Second with 110 DEG C of solidifications 3 Hour, it demoulds and takes out after being cooled to room temperature, obtain modified unsaturated polyester.Solidify the typical performance of unsaturated polyester (UP) respectively referring to Attached drawing 2.
Referring to attached drawing 2, it is composite flame-proof modified unsaturated polyester provided by the invention and the pure insatiable hunger that comparative example 1 provides With the oxygen index (OI) test result figure of polyester.The oxygen index (OI) of example 7 is 28.17.
Embodiment 8
1, the preparation of composite flame-retardant agent modified unsaturated polyester
The montmorillonite of 18g is added in the unsaturated polyester (UP) of 136g, is uniformly mixed, mixing temperature is 20 DEG C~30 DEG C, mixing time is 10min~20min, obtains solution B;
It is 9: 2 by montmorillonite and zinc borate mass ratio, the zinc borate of 4g is added in above-mentioned solution B, is stirred Even, mixing temperature is 20 DEG C~30 DEG C, and mixing time is 10min~20min, obtains solution C;
It is 1: 5 by zinc borate and methyl acid phosphate diformazan rouge mass ratio, two formicester of methyl acid phosphate of 20g is added to above-mentioned molten It in liquid C, is uniformly mixed, mixing temperature is 20 DEG C~30 DEG C, and mixing time is 10min~20min, obtains solution D;
It is 9: 10 by ammonium polyphosphate modifying and methyl acid phosphate diformazan rouge mass ratio, the ammonium polyphosphate modifying of 18g is added to It in above-mentioned solution D, is uniformly mixed, mixing temperature is 20 DEG C~30 DEG C, and mixing time is 10min~20min, is obtained molten Liquid;The benzoyl peroxide initiator that 4g is added in solution again obtains solution E after mixing evenly.
It is put into drying box after solution E is infused film, for the first time with 80 DEG C of dry 1 hours;Second with 110 DEG C of solidifications 3 Hour, it demoulds and takes out after being cooled to room temperature, obtain modified unsaturated polyester.Solidify the typical performance of unsaturated polyester (UP) respectively referring to Attached drawing 2.
Referring to attached drawing 2, it is composite flame-proof modified unsaturated polyester provided by the invention and the pure insatiable hunger that comparative example 1 provides With the oxygen index (OI) test result figure of polyester.The oxygen index (OI) 28.17 of example 8.In example 7 compared with example 8, they have identical oxygen Index, it can be seen that the obvious synergistic effect between ammonium polyphosphate modifying and montmorillonite.From example 5 to example 8, with modified poly- The reduction of ammonium phosphate amount and the increase of montmorillonite amount, oxygen index value reduce, and reflect the high-efficient of ammonium polyphosphate modifying fire retardant In montmorillonite.With the increase of montmorillonite, oxygen index (OI) is gradually reduced.The dispersion of montmorillonite and aggregation difference will be such that composite material reaches To layered structure.It is flammable therefore improve that as was expected when adding excessive montmorillonite.

Claims (4)

1. a kind of method of composite flame-retardant agent modified unsaturated polyester, specifically includes the following steps:
(1) ammonium polyphosphate is uniformly mixed under agitation with unsaturated polyester (UP) in mass ratio 1: 1;
(2) initiator is added into step (1) resulting solution under agitation, obtains solution A;
(3) it is put into drying box after solution A being infused film, pulverizes and sieves after solidification, obtains ammonium polyphosphate modifying;
(4) montmorillonite is mixed under agitation with unsaturated polyester (UP), both control mass ratio is (1~9): 68, temperature is 20 DEG C~30 DEG C, mixing time is 10min~20min, obtains solution B after mixing;
(5) zinc borate is mixed under agitation with step (4) resulting solution B, in control zinc borate dosage and step (4) The mass ratio of montmorillonite is 2: (1~9), temperature are 20 DEG C~30 DEG C, and mixing time is 10min~20min, after mixing To solution C;
(6) two formicester of methyl acid phosphate is added in solution C under agitation, in control two formicester of methyl acid phosphate and step (5) Zinc borate mass ratio be 5: 1, temperature be 20 DEG C~30 DEG C, mixing time be 10min~20min, obtain after mixing Solution D;
(7) step (3) resulting ammonium polyphosphate modifying is added in solution D under agitation, control ammonium polyphosphate modifying with The mass ratio of two formicester of methyl acid phosphate is (9~17) in step (6): 10, temperature is 20 DEG C~30 DEG C, mixing time 10min ~20min, obtains solution after mixing;
(8) initiator will be added in step (7) resulting solution, obtains solution E, be put into drying box after infusing film, respectively at 80 DEG C, Dry 1h and 3h at 110 DEG C, cooling and demolding is to get arriving a kind of modified unsaturated polyester.
2. the method according to claim 1, wherein the initiator is benzoyl peroxide.
3. the method according to claim 1, wherein the granularity of the ammonium polyphosphate modifying is 300~400 Mesh.
4. the method according to claim 1, wherein the mass ratio of the unsaturated polyester (UP) and composite flame-retardant agent is (70~100): 30.
CN201711118764.0A 2017-11-08 2017-11-08 A kind of method of composite flame-retardant agent modified unsaturated polyester Pending CN109749383A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711118764.0A CN109749383A (en) 2017-11-08 2017-11-08 A kind of method of composite flame-retardant agent modified unsaturated polyester

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711118764.0A CN109749383A (en) 2017-11-08 2017-11-08 A kind of method of composite flame-retardant agent modified unsaturated polyester

Publications (1)

Publication Number Publication Date
CN109749383A true CN109749383A (en) 2019-05-14

Family

ID=66402296

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201711118764.0A Pending CN109749383A (en) 2017-11-08 2017-11-08 A kind of method of composite flame-retardant agent modified unsaturated polyester

Country Status (1)

Country Link
CN (1) CN109749383A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1379078A (en) * 2002-04-18 2002-11-13 巴陵石化岳阳石油化工总厂 Process for preparing micro-encapsulated expansion-type N-P flame-retarding agent
WO2014209583A1 (en) * 2013-06-28 2014-12-31 Sabic Innovative Plastics Ip B.V. Intumescent coating composition comprising particulate poly(phenylene ether)
CN106147104A (en) * 2015-03-10 2016-11-23 天津工业大学 A kind of flame-retarded unsaturated polyester resin and enhancing method of modifying thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1379078A (en) * 2002-04-18 2002-11-13 巴陵石化岳阳石油化工总厂 Process for preparing micro-encapsulated expansion-type N-P flame-retarding agent
WO2014209583A1 (en) * 2013-06-28 2014-12-31 Sabic Innovative Plastics Ip B.V. Intumescent coating composition comprising particulate poly(phenylene ether)
CN106147104A (en) * 2015-03-10 2016-11-23 天津工业大学 A kind of flame-retarded unsaturated polyester resin and enhancing method of modifying thereof

Similar Documents

Publication Publication Date Title
Meng et al. Effects of expandable graphite and ammonium polyphosphate on the flame‐retardant and mechanical properties of rigid polyurethane foams
KR101915920B1 (en) CERAMICIZED SILICON RESIN COMPOSITION AND PREPREG AND LAMINATE USING THE SAME
CN106832813B (en) Flame-retardant polyethylene terephthalate resin composition
CN110591335B (en) High-flame-retardance low-smoke-toxicity weather-resistant cable sheath material and preparation method thereof
Yang et al. Flame‐retarded polyethylene terephthalate with carbon microspheres/magnesium hydroxide compound flame retardant
Zheng et al. Flame‐retardant properties of acrylonitrile–butadiene–styrene/wood flour composites filled with expandable graphite and ammonium polyphosphate
CN102796283B (en) Compound intumescent flame retardant and preparation method thereof
Xie et al. Ammonium polyphosphate/montmorillonite nanocomposite with a completely exfoliated structure and charring–foaming agent flame retardant thermoplastic polyurethane
Huang et al. Flame retardant polypropylene with a single molecule intumescent flame retardant based on chitosan
Ye et al. Engineering two nitrogen-containing polyhedral oligomeric silsesquioxanes (N-POSSs) to enhance the fire safety of epoxy resin endowed with superior thermal stability
Chen et al. Phosphonitrile decorating expandable graphite as a high-efficient flame retardant for rigid polyurethane foams
CN116004082A (en) Light solvent-free epoxy intumescent fire retardant coating for automobile power battery packs and energy storage equipment and preparation method thereof
Liu et al. Synergistic flame retardant effect of aluminum hydroxide and ammonium polyphosphate on epoxy resin
Xu et al. Preparation of a cobalt metal-organic framework (Co-MOF) and its application as a polypropylene flame retardant by compounding with melamine polyphosphate
CN105038238A (en) Preparation method of organic silicon fire retardant of organic silicon rubber wastes
CN102838779B (en) Composite expandable flame retardant modified thermosetting resin and preparation method thereof
Chen et al. N‐alkoxyamine‐containing macromolecular intumescent flame‐retardant‐decorated ZrP nanosheet and their synergism in flame‐retarding polypropylene
Taghi-Akbari et al. Flammability, smoke production, and mechanical properties of thermoplastic polyurethane composites with an intumescent flame-retardant system and nano-silica
Zhou et al. Preparation of highly efficient flame retardant unsaturated polyester resin by exerting the fire resistant effect in gaseous and condensed phase simultaneously
Shang et al. Flame retardancy, combustion, and ceramization behavior of ceramifiable flame‐retardant room temperature vulcanized silicone rubber foam
CN109749383A (en) A kind of method of composite flame-retardant agent modified unsaturated polyester
CN113490705A (en) Thermosetting foam, method for producing same, and heat insulating material comprising same
Jiao et al. Novel phenolic resin hollow microspheres: Flame retardancy and toxicity reduction in thermoplastic polyurethane elastomer.
Ou et al. Facile strategy of preparing excellently thermal-insulating and fire-safe building materials based on an aromatic Schiff base dicarboxylic acid without additional flame retardants
Ren et al. Microcapsule preparation of melamine and orange peel charcoal encapsulated by sodium alginate and its effect on combustion performance of epoxy resins

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WD01 Invention patent application deemed withdrawn after publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20190514