CN104497354B - A kind of triguaiacyl phosphate polyhedral oligomeric sesquialter polysiloxanes fire retardant and preparation method thereof - Google Patents

A kind of triguaiacyl phosphate polyhedral oligomeric sesquialter polysiloxanes fire retardant and preparation method thereof Download PDF

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CN104497354B
CN104497354B CN201410853588.5A CN201410853588A CN104497354B CN 104497354 B CN104497354 B CN 104497354B CN 201410853588 A CN201410853588 A CN 201410853588A CN 104497354 B CN104497354 B CN 104497354B
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preparation
fire retardant
polyhedral oligomeric
phenyl
silsesquioxanes
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CN104497354A (en
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袁章林
王锦成
李涛涛
邵锦钟
张涛
曹付海
张广建
韦小凤
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Shanghai University of Engineering Science
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Abstract

The invention discloses a kind of triguaiacyl phosphate polyhedral oligomeric sesquialter polysiloxanes fire retardant and preparation method thereof, the fire retardant has following structure:

Description

A kind of triguaiacyl phosphate polyhedral oligomeric sesquialter polysiloxanes fire retardant and preparation method thereof
Technical field
It is to be related to a kind of triguaiacyl phosphate polyhedral oligomeric sesquialter to gather specifically the present invention relates to a kind of phosphorus silicon composite flame-retardant agent Siloxane flame retardant and preparation method thereof, belongs to technical field of flame retardant.
Background technology
Phosphate ester flame retardants are the favorites of organic halogen-free agent, belong to the category of expansion type flame retardant, obtain in recent years Obtained huge development.However, widely used phosplate based flame retardant, such as triphenyl phosphate, tricresyl phosphate in the market Toluene ester etc., has that relative molecular weight is small, volatility is big, heat decomposition temperature is relatively low, easily occurs from material in use The deficiency such as migration and volatilization loss in material, therefore, their application effect is not good.
Polyphosphate fire retardant is a class New-type halide-free, low cigarette, low toxicity, resistance to migration, resistance to volatilization, the resistance of radiation-resistant environment-friendly type Agent is fired, with the features such as relative molecular mass is big, phosphorus content is high, flame retardant effect is lasting.Polyphosphoric acid in polyphosphate fire retardant Phenyl ester also has plasticising performance concurrently, and its plasticity, anti-flammability, heat endurance are superior to common phosplate, however, it with it is other Expansion type flame retardant is the same, and the compatibility with polymer substrate is poor.
Polyhedral oligomeric sesquialter polysiloxanes is the organic/inorganic nano-hybrid materials that a class is new, possess nanostructured, Advantage with both polymer and inorganic material, shows good flame retardant effect.Compared with other fire retardants, with nanometer Not only flame retarding efficiency is high for the fire retardant of level size, presses down cigarette, small toxicity, and can improve the compatibility with polymeric matrix.Will It is introduced after polymeric system, and its peripheral particle can form stronger bonding action between organic phase, make polyhedral oligomeric sesquialter There is good compatibility between Silicone particles and polymeric matrix, improve or eliminate reunion and two phase boundaries of inorganic particulate The problem of face adhesion is weak, so as to improve the heat resistance of polymer.
The content of the invention
The technical problems to be solved by the invention are:A kind of nanometer for possessing both polymer and inorganic material advantage is provided Structure fire retardant and preparation method thereof, to meet the use requirement under different condition to fire retardant.
To solve above-mentioned technical problem, the technical solution adopted by the present invention is as follows:
A kind of triguaiacyl phosphate polyhedral oligomeric sesquialter polysiloxanes fire retardant, with following structure:
A kind of method for preparing triguaiacyl phosphate polyhedral oligomeric sesquialter polysiloxanes fire retardant of the present invention, is with not complete Seven phenyl silanetriol silsesquioxanes of full reduced conjunction carry out condensation reaction with diphenyl phosphate chloride in anhydrous tetrahydro furan and are made, Its synthetic route is as follows:
Preferably, described condensation reaction is to carry out under nitrogen protection.
Preferably, described condensation reaction is stirring reaction 6~10 hours at 40~60 DEG C.
Preferably, terminate in described condensation reaction, reaction solution is filtered, filtrate is removed molten with distillation under vacuum Agent, then neutrality is washed to distillation, dry.
As preferred scheme, count in mass ratio, the seven phenyl silanetriol silsesquioxanes: chlorine di(2-ethylhexyl)phosphate not being condensed completely Phenyl ester: tetrahydrofuran=1:(0.89~2.18):(10~50), wherein tetrahydrofuran need complete water removal.
Compared with prior art, the present invention has following conspicuousness progress:
The present invention is obtained by introducing three diphenyl phosphates in seven phenyl silanetriol silsesquioxanes not being condensed completely Seven phenyl triphosphoric acid diphenyl ester polyhedral oligomeric silesquioxane compounds have that relative molecular weight is big, phosphorus content is high, it is hot steady Qualitative good, low cigarette, nontoxic, resistance to migration, the characteristic of resistance to volatilization, also with plasticising, it is heat-resisting, with the spy such as polymer matrix compatability is good Point, can give full play to the advantage of polyhedral oligomeric sesquialter polysiloxanes and phosphate ester flame retardants, generate cooperative flame retardant effect, and Preparation method is simple, performance is stable, with industrial applications value.
Brief description of the drawings
Fig. 1 is the synthetic route of fire retardant of the present invention;Wherein:Ith, seven phenyl silanetriol sesquialter silicon not being condensed completely Oxygen alkane;IIth, diphenyl phosphate chloride;IIIth, fire retardant of the present invention:Seven phenyl triphosphoric acid diphenyl ester polyhedral oligomeric silsesquioxanes Alkane;
Fig. 2 is seven phenyl silanetriol silsesquioxanes (I) not being condensed completely1H nuclear magnetic spectrums;
Fig. 3 is fire retardant of the present invention:Seven phenyl triphosphoric acid diphenyl ester polyhedral oligomeric silsesquioxanes (III)1H cores Magnetic chart is composed;
Fig. 4 is the infared spectrum for seven phenyl silanetriol silsesquioxanes (I) not being condensed completely;
Fig. 5 is fire retardant of the present invention:Seven phenyl triphosphoric acid diphenyl ester polyhedral oligomeric silsesquioxanes (III) it is infrared Collection of illustrative plates;
Fig. 6 is fire retardant of the present invention:The heat mistake of seven phenyl triphosphoric acid diphenyl ester polyhedral oligomeric silsesquioxanes (III) Weight curve map.
Embodiment
With reference to embodiment, the present invention is described in further detail and completely.
Embodiment
1) preparation of seven phenyl triphosphoric acid diphenyl ester polyhedral oligomeric silsesquioxanes (III):
As shown in figure 1, the fire retardant that the present invention is provided:Seven phenyl triphosphoric acid diphenyl ester polyhedral oligomeric silsesquioxanes (III) Synthetic route be with the seven phenyl silanetriol silsesquioxanes (I) that are not condensed completely with diphenyl phosphate chloride (II) anhydrous four Condensation reaction is carried out in hydrogen furans seven phenyl triphosphoric acid diphenyl ester polyhedral oligomeric silsesquioxanes (III) are made.
Specifically preparation process is:
Seven phenyl silanetriol silsesquioxanes (I), the chlorine phosphoric acid hexichol not being condensed completely are sequentially added in three-necked flask Ester (II) and tetrahydrofuran anabolic reaction system, by suction filtration after reaction system stirring, heating, backflow, filtrate decompression is evaporated off molten Agent, with distilled water flushing to pH ≈ 7, the light grey phenyl triphosphoric acid diphenyl ester of sticky matter fire retardant seven is produced after being then dried in vacuo Polyhedral oligomeric silsesquioxane (III).
The phenyl triphosphoric acid diphenyl ester polyhedral oligomeric silsesquioxane (III) of three batch seven, preparation process are prepared in aforementioned manners In material proportion and control parameter it is as shown in table 1:
Table 1
2) characterize data of seven phenyl triphosphoric acid diphenyl ester polyhedral oligomeric silsesquioxanes (III):
As shown in Fig. 2 being the seven phenyl silanetriol silsesquioxanes (I) that are not condensed completely1H nuclear magnetic spectrums;Fig. 3 institutes Show, the phenyl triphosphoric acid diphenyl ester polyhedral oligomeric silsesquioxane (III) of fire retardant seven provided for the present invention1H nuclear magnetic spectrums. From fig. 2 it can be seen that being about at 3.71, with obvious Si-OH peaks in ppm;It is phenyl ring at 7.15~7.85 to be in ppm Environment residing for upper hydrogen;It is seen in figure 3 that due to not being condensed seven phenyl silanetriol silsesquioxanes (I) and chlorine phosphorus completely Condensation reaction occurs for diphenyl phthalate (II), causes Si-OH peaks to disappear, therefore at it1On H nuclear magnetic spectrums only ppm be 6.95~ Occurs the collection of illustrative plates of hydrogen on phenyl ring at 7.85.
As shown in figure 4, the infrared light collection of illustrative plates for seven phenyl silanetriol silsesquioxanes (I) not being condensed completely;Shown in Fig. 5, The infrared light collection of illustrative plates of the phenyl triphosphoric acid diphenyl ester polyhedral oligomeric silsesquioxane (III) of fire retardant seven provided for the present invention.By scheming 4 is visible, in about 1131cm-1Absworption peak of the place with polyhedral oligomeric sesquialter polysiloxanes Si-O-Si, about 3627cm-1Place has Si-OH stretching vibration absworption peak, 898.7cm-1There is Si-OH flexural vibrations absworption peak;In fig. 5 it may be seen that about existing 1130cm-1There are polyhedral oligomeric sesquialter polysiloxanes Si-O-Si absworption peak, 1193cm in place-1There is the flexible of P=O to shake at left and right Dynamic peak, 1027cm-1There are P-O stretching vibration peak, 954cm-1There is P-O-Si asymmetric stretching vibration peak.
3) physical characteristic of seven phenyl triphosphoric acid diphenyl ester polyhedral oligomeric silsesquioxanes (III):
A) average grain diameter:
The phenyl triphosphoric acid diphenyl ester polyhedral oligomeric sesquialter of fire retardant seven of three batches obtained with above-mentioned 1) preparation method Siloxanes (III), after measured, with average grain diameter listed in such as table 2:
Table 2
From table 2:The fire retardant average grain diameter that the present invention is provided is 1.28~8.36nm, with nano-grade size knot Structure, illustrates that seven phenyl triphosphoric acid diphenyl ester polyhedral oligomeric silsesquioxanes (III) and polymer have preferable compatibility.
B) thermal weight loss situation:
As shown in fig. 6, the phenyl triphosphoric acid diphenyl ester polyhedral oligomeric silsesquioxane of fire retardant seven provided for the present invention (III) thermogravimetric curve figure, it is to use《Nano composite polymer/laminated silicate material theory and practice》(QiZongNeng, Shang Wenyu writes, Chemical Industry Press, 2002) thermogravimetry detection is obtained as defined in.
Testing result shows, the phenyl triphosphoric acid diphenyl ester polyhedral oligomeric silsesquioxane of fire retardant seven that the present invention is provided (III) decomposition temperature that thermal weight loss starts is 261.6 DEG C (weightlessness 5%);Thermal decomposition process can be divided into for 2 stages, and the 1st stage existed 311.75 DEG C or so, now decomposition rate is most fast, but still has 71.53% quality remaining at 383.79 DEG C;2nd stage heat point Solution appears in 500 DEG C or so, but still has at 700 DEG C 39.61% residual volume;Illustrate that the product has excellent heat resistance, It can be directly applied to as fire retardant among other materials.
In summary, the fire retardant that the present invention is provided:Seven phenyl triphosphoric acid diphenyl ester polyhedral oligomeric silsesquioxanes (III) With relative molecular weight is big, heat endurance is good and has preferable compatibility with polymer, has given full play to silicon-series five-retardant and phosphorus The respective advantage of flame retardant, with good development prospect;In addition, the fire retardant that the present invention is provided:The phosphorus of seven phenyl three The preparation method of diphenyl phthalate polyhedral oligomeric silsesquioxane is simple, performance is stable, with industrial application value.
Finally it is necessary described herein to be that the above embodiments are merely illustrative of the technical solutions of the present invention and unrestricted Invention, although the present invention is described in detail with reference to preferred embodiment, it will be understood by those within the art that, can Modified with the technical scheme to invention or equivalent substitution, without departing from the spirit and scope of technical solution of the present invention, its It all should cover in scope of the presently claimed invention.

Claims (5)

1. a kind of preparation method of triguaiacyl phosphate polyhedral oligomeric sesquialter polysiloxanes fire retardant, described fire retardant has following knot Structure:
It is characterized in that:The preparation method is with seven phenyl silicon three not being condensed completely Alcohol silsesquioxane carries out condensation reaction with diphenyl phosphate chloride in anhydrous tetrahydro furan, and its synthetic route is as follows:
2. preparation method according to claim 1, it is characterised in that:Described condensation reaction is carried out under nitrogen protection.
3. preparation method according to claim 1, it is characterised in that:Described condensation reaction is stirred at 40~60 DEG C Reaction 6~10 hours.
4. preparation method according to claim 1, it is characterised in that:Terminate in described condensation reaction, reaction solution is filtered Cross, filtrate removes solvent with distillation under vacuum, then is washed to neutrality with distillation, dries.
5. the preparation method according to any one of Claims 1 to 4, it is characterised in that:Count, be not condensed completely in mass ratio Seven phenyl silanetriol silsesquioxanes: diphenyl phosphate chloride: tetrahydrofuran=1:(0.89~2.18):(10~50), wherein four Hydrogen furans needs complete water removal.
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CN109082106A (en) * 2018-07-23 2018-12-25 德清顾舒家华高分子材料有限公司 A kind of polyurethane foam containing organic silicon-phosphorus synergistic fire retardant
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CN109096532A (en) * 2018-08-20 2018-12-28 德清顾舒家华高分子材料有限公司 A method of improving polyurethane foam flame retardant property
CN112280146A (en) * 2020-10-27 2021-01-29 杭州富通通信技术股份有限公司 Optical cable and preparation method thereof

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