CN106916437A - A kind of fire-retardant high abrasion temperature range wave-absorption vibration composite wide and preparation method thereof - Google Patents
A kind of fire-retardant high abrasion temperature range wave-absorption vibration composite wide and preparation method thereof Download PDFInfo
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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Abstract
A kind of fire-retardant high abrasion temperature range wave-absorption vibration composite wide and preparation method thereof, it is related to a kind of flame-proof composite material and preparation method thereof, the method is controllable using basic magnesium chloride whisker draw ratio, and with high-wearing feature and the features such as excellent fire resistance, using two-step synthesis method and ultrasonic dispersion, it is blended with ester ether copolymerization type polyurethane, having prepared both has damping temperature domain wider, there is the basic magnesium chloride whisker/ester ether copolymerization polyurethane wave-absorption vibration composite of preferable flame retardant effect and anti-wear performance again, material is made up of ester ether copolymerization type polyurethane that mass ratio is 90%~50% and the basic magnesium chloride whisker of 10%~50% coupling agent treatment, and the consumption of coupling agent account for basic magnesium chloride whisker mass ratio be 0.1 5%；The method properties of product stabilization, low manufacture cost, easy industrialized production.
Description
Technical field
The present invention relates to a kind of flame-proof composite material and preparation method thereof, more particularly to a kind of fire-retardant high abrasion temperature range wide
Wave-absorption vibration composite and preparation method thereof.
Background technology
With the development of society and science and technology, plant equipment and device increasingly tend to high speed, maximization, but its shaking of causing
Dynamic and noise problem is increasingly protruded.The aspect problems such as vibration, noise and fatigue rupture, severely impact the stabilization of equipment operation
Property, reliability and life-span, and harm is produced to the physically and mentally healthy of people.Therefore damping noise reduction, it is one to improve man-machine working environment
The individual important technological problems that must be solved.
Be first as damping material requirement its there is damping peak value higher, can be more efficient by mechanical energy turn
Being changed to other forms can lose, and play the effect of effective damping.Secondly, with industry and the significantly development of military industry field, only
Damping wave-absorbing effect is played to the vibration of a certain wave band can not meet actually used requirement, with greater need in relative broad range
Various vibration waves are effectively suppressed.According to " when-temperature " principle of equal effects, material is accomplished by wider in order to reach this requirement
Within the temperature range of there is preferable damping, that is, damping temperature domain is sufficiently wide, in order to widen material damping temperature range, improves
The damping peak value of material, occurs in that in the design aspect of polymer damping material and differ larger by by two kinds of glass transition temperatures
High polymer blending, copolymerization and construction interpenetrating polymer networks IPN structures etc. method prepare wide temperature zone high damping composite material.Such as
The patents such as US4687835A, US4205158A, US4562232 are started with from polyester polyether polyol, solve polyether polyols
Alcohol and PEPA inconsistent problem；Chinese patent CN 102093528 discloses one kind and epoxy resin is added into poly- ammonia
The method that the damping factor of material is improved in ester, and material had both been needed in actual application with damping factor higher,
Needing material again has damping temperature domain wider, could so meet the requirement to wider frequency band, more high-damping effect.
The content of the invention
It is an object of the invention to provide a kind of fire-retardant high abrasion temperature range wave-absorption vibration composite wide and preparation method thereof,
The method is disperseed using characteristics such as basic magnesium chloride excellent fire resistance, high-wearing features using two-step synthesis method and ultrasonic wave
Method, having prepared both has damping temperature domain wider, and the basic magnesium chloride whisker with preferable flame retardant effect and anti-wear performance/
Ester-ether copolymerization polyurethane wave-absorption vibration composite, and with raw material sources extensively, preparation process is simple, favorable repeatability, easily
The features such as industrialized production.
The purpose of the present invention is achieved through the following technical solutions：
A kind of fire-retardant high abrasion temperature range wave-absorption vibration composite wide, the material include ester-ether copoly type polyurethane matrix and
The basic magnesium chloride whisker of coupling agent treatment；The material is by ester-ether copolymerization type polyurethane and 10% that mass ratio is 90%~50%
The basic magnesium chloride whisker composition of~50% coupling agent treatment, and the consumption of coupling agent accounts for the mass ratio of basic magnesium chloride whisker and is
0.1-5%；
Described a kind of fire-retardant high abrasion temperature range wave-absorption vibration composite wide, the basic magnesium chloride whisker be shaped as needle-like or
Threadiness.
Described a kind of fire-retardant high abrasion temperature range wave-absorption vibration composite wide, the coupling agent is the ethoxy of 3- aminopropyls three
Base silane, 3- aminopropyl trimethoxysilanes, 3- glycidyl ether oxygen propyl trimethoxy silicanes, 3- methacryloxies third
Base trimethoxy silane, 3- Mercaptopropyltriethoxysilanes, 3-mercaptopropyi trimethoxy silane, vinyl trimethoxy silicon
Alkane, isopropyl three（Dioctylphyrophosphoric acid acyloxy）Titanate esters, it is double-（γ-triethoxy silicon substrate propyl group）Tetrasulfide, 17 fluorine
One kind in decyl trimethoxy silane, stearic acid.
Described a kind of fire-retardant high abrasion temperature range wave-absorption vibration composite wide, the ester-ether copolymerization type polyurethane be by
Polypropylene glycol（PPG）, polyethylene glycol（PEG）, polytetrahydrofuran diol（PTMG）, PolyTHF-propylene oxide copolymer glycols
（PTHFG-POG）, one or more PPG in caster oil type, and the poly- hexanedioic acid glycol ester of terminal hydroxy group（PEA）, end
Hydroxyl polyethylene terephthalate（PET）, benzoic anhydride polyester polyol, one or more PEPA in fatty acid oil
The soft section of composition, is toluene di-isocyanate(TDI) with diisocyanate（TDI）, methyl diphenylene diisocyanate（MDI）, 1,4- rings
Hexane diisocyanate（CHDI）, methylcyclohexane diisocyanate（HTDI）, 1,4 phenylene diisocyanates（PPDI）, norborneol
Alkane diisocyanate（NBDI）In one or more isocyanates constitute hard section constituted.
A kind of preparation method of fire-retardant high abrasion temperature range wave-absorption vibration composite wide, methods described includes following preparation
Journey：
（1）The treatment of basic magnesium chloride whisker
The coupling agent that basic magnesium chloride whisker quality 0.1~5% will be accounted for first is dissolved in excessive acetone or alcohol solution, so
Basic magnesium chloride whisker is put into the solution that this contains coupling agent afterwards, under 20~35kHz frequency conditions, ultrasonic disperse 0.5
~1 hour, then will be dried 12~24 hours under the conditions of 60~70 DEG C of dispersion product again, be obtained through the alkali formula after coupling agent treatment
Magnesium chloride whisker；
（2）The preparation of PAUR performed polymer
PEPA is added in reactor, 90~120 DEG C, vacuum dehydration 5~8 hours are heated to；Cool the temperature to 40
DEG C, under nitrogen protective condition, it is slowly added to the isocyanates for measuring（Default-NOC% contents are 5 ~ 8%）To PEPA
In reactor, temperature is risen to 80~110 DEG C after all adding, after reacting 1~3 hour, be down to room temperature and obtain polyester
Type Polyurethane Prepolymer；
（3）The preparation of Polyether-Polyol Polyurethane Prepolymer
PPG is added in reactor, 90~120 DEG C are heated to, high vacuum is dehydrated 5~8 hours；Cool the temperature to
40 DEG C, under nitrogen protective condition, add the isocyanates of metering（Default-NOC% contents are 5 ~ 8%）To prepolymer reaction device
In, temperature is risen to 80~110 DEG C after all adding, after reaction 1~3 hour, being down to room temperature, to obtain EU pre-
Aggressiveness；
（4）The preparation of basic magnesium chloride whisker/ester-ether copolymerization type polyurethane wave-absorption vibration damp composite material
First under the conditions of 60 ~ 70 DEG C, by PAUR performed polymer and Polyether-Polyol Polyurethane Prepolymer according to mass ratio 1:1 mixes
Close, ester-ether copolymerization Type Polyurethane Prepolymer is obtained, be then the alkali formula chlorination after 10%~50% coupling agent treatment by mass fraction
Magnesium whisker is added in ester-ether copolymerization Type Polyurethane Prepolymer, and by mixture under 50~60Hz frequency conditions, ultrasonication
10~30 minutes, afterwards by crosslinking agent 3,3 '-two chloro- 4,4 '-diaminodiphenyl-methane（MOCA）According to amount of calculation, it is put into poly-
In the mixture of urethane performed polymer and basic magnesium chloride whisker composition, under the conditions of being sufficiently stirred at 40~60 DEG C, 20-30 points of reaction
Poured into mould after clock, solidified 12 hours under the conditions of 70~90 DEG C, then solidified 2 ~ 3 hours under the conditions of 100 ~ 120 DEG C, system
Obtain basic magnesium chloride whisker/ester-ether copoly type polyurethane flame-proof high abrasion temperature range wave-absorption vibration composite wide.
Advantages of the present invention is with effect：
1. due to needle-like or linear structure that basic magnesium chloride whisker is special so that not only had by its obtained damp composite material
There is damping temperature domain wide, and integral damping peak value is also lifted.
2. basic magnesium chloride whisker excellent flame retardancy, the damp composite material excellent flame retardancy as made by it, this
The addition of outer basic magnesium chloride whisker also makes the tensile resistance and wearability of damp composite material be lifted.
3. China is magnesium resource big country, and magnesium resource enriches, and raw material sources are abundant, cheap, by itself and polyester polyether-type
Polyurethane is mixed with the simple production process of damp composite material, stabilization, favorable repeatability, easy industrialized production.
Specific embodiment
With reference to embodiment, the present invention is described in detail.
Example one：
（1）Basic magnesium chloride whisker（BMC）Treatment
Coupling agent (its quality is the 0.5% of basic magnesium chloride whisker quality) is dissolved in excessive acetone soln first, then
Basic magnesium chloride whisker is put into the solution that this contains coupling agent, under 35kHz frequency conditions, ultrasonic disperse 0.5 hour, so
To be dried 24 hours under the conditions of 60 DEG C of dispersion product again afterwards, be obtained through the basic magnesium chloride whisker after coupling agent treatment.
（2）It is prepared by estrodur performed polymer
PEPA PEPA is added in reactor, 90 DEG C, vacuum dehydration 8 hours are heated to；Then 40 are cooled the temperature to
DEG C, high pure nitrogen is passed through, the isocyanates MDI that will be measured（Default-NOC% contents are 5%）Slowly it is added in reactor,
Temperature is risen to 90 DEG C after all adding, react 2 hours, be cooled to room temperature and obtain estrodur performed polymer.
（3）It is prepared by polyethers performed polymer
PPG PTMG is added in reactor, 100 DEG C are heated, high vacuum is dehydrated 8 hours；40 DEG C are cooled the temperature to,
High pure nitrogen is passed through, the isocyanates MDI that will be measured（Default-NOC% contents are 5%）Slowly it is added in reactor, treats
Temperature is risen to 100 DEG C after all adding, react 2 hours, be cooled to room temperature and obtain estrodur performed polymer.
（4）The preparation of basic magnesium chloride whisker/ester-ether copolymerization type polyurethane wave-absorption vibration damp composite material
First under the conditions of 60 DEG C, by PAUR performed polymer and Polyether-Polyol Polyurethane Prepolymer according to mass ratio 1:1 mixing,
Ester-ether copolymerization Type Polyurethane Prepolymer is obtained, is then that basic magnesium chloride whisker after 10% coupling agent treatment adds by mass fraction
In entering ester-ether copolymerization Type Polyurethane Prepolymer, and mixture is placed in supersonic wave cleaning machine 20 points are processed under 50Hz frequencies
Clock, afterwards by crosslinking agent MOCA according to amount of calculation（The quality that MOCA is added in 100 grams of reactants is WMOCA=3.18×-NCO%×
100×0.9）It is put into the mixture of base polyurethane prepolymer for use as and basic magnesium chloride whisker composition, under the conditions of being sufficiently stirred at 60 DEG C,
Reaction is poured into mould for 20 minutes afterwards, is solidified 12 hours under the conditions of 80 DEG C, then is solidified 2 hours under the conditions of 120 DEG C, is obtained
Basic magnesium chloride whisker/ester-ether copoly type polyurethane flame-proof high abrasion temperature range wave-absorption vibration composite wide.
Example two：
（1）Basic magnesium chloride whisker（BMC）Treatment
Coupling agent (its quality is the 0.5% of basic magnesium chloride whisker quality) is dissolved in excessive acetone soln first, then
Basic magnesium chloride whisker is put into the solution that this contains coupling agent, under 30kHz frequency conditions, ultrasonic disperse 0.5 hour, so
To be dried 24 hours under the conditions of 70 DEG C of dispersion product again afterwards, be obtained through the basic magnesium chloride whisker after coupling agent treatment.
（2）It is prepared by estrodur performed polymer
PEPA PEPA is added in reactor, 90 DEG C, vacuum dehydration 6 hours are heated to；Then 40 are cooled the temperature to
DEG C, high pure nitrogen is passed through, the isocyanates MDI that will be measured（Default-NOC% contents are 5%）Slowly it is added in reactor,
Temperature is risen to 90 DEG C after all adding, react 3 hours, be cooled to room temperature and obtain estrodur performed polymer.
（3）It is prepared by polyethers performed polymer
PPG PPG is added in reactor, 100 DEG C are heated, high vacuum is dehydrated 8 hours；40 DEG C are cooled the temperature to, is led to
Enter high pure nitrogen, the isocyanates MDI that will be measured（Default-NOC% contents are 5%）Slowly it is added in reactor, treats complete
Portion makes temperature rise to 100 DEG C after adding, react 2 hours, is cooled to room temperature and obtains estrodur performed polymer.
（4）The preparation of basic magnesium chloride whisker/ester-ether copolymerization type polyurethane wave-absorption vibration damp composite material
First under the conditions of 60 DEG C, by PAUR performed polymer and Polyether-Polyol Polyurethane Prepolymer according to mass ratio 1:1 mixing,
Ester-ether copolymerization Type Polyurethane Prepolymer is obtained, is then that basic magnesium chloride whisker after 15% coupling agent treatment adds by mass fraction
In entering ester-ether copolymerization Type Polyurethane Prepolymer, and mixture is placed in supersonic wave cleaning machine 30 points are processed under 60Hz frequencies
Clock, afterwards by crosslinking agent MOCA according to amount of calculation（The quality that MOCA is added in 100 grams of reactants is WMOCA=3.18×-NCO%×
100×0.9）It is put into the mixture of base polyurethane prepolymer for use as and basic magnesium chloride whisker composition, under the conditions of being sufficiently stirred at 60 DEG C,
Reaction is poured into mould for 20 minutes afterwards, is solidified 12 hours under the conditions of 90 DEG C, then is solidified 2 hours under the conditions of 120 DEG C, is obtained
Basic magnesium chloride whisker/ester-ether copoly type polyurethane flame-proof high abrasion temperature range wave-absorption vibration composite wide.
Example three：
（1）Basic magnesium chloride whisker（BMC）Treatment
Coupling agent (its quality is the 0.5% of basic magnesium chloride whisker quality) is dissolved in excessive acetone soln first, then
Basic magnesium chloride whisker is put into the solution that this contains coupling agent, under 30kHz frequency conditions, ultrasonic disperse 0.5 hour, so
To be dried 24 hours under the conditions of 70 DEG C of dispersion product again afterwards, be obtained through the basic magnesium chloride whisker after coupling agent treatment.
（2）It is prepared by estrodur performed polymer
PEPA PET is added in reactor, 85 DEG C, vacuum dehydration 8 hours are heated to；Then 40 are cooled the temperature to
DEG C, high pure nitrogen is passed through, the isocyanates MDI that will be measured（Default-NOC% contents are 5%）Slowly it is added in reactor,
Temperature is risen to 90 DEG C after all adding, react 3 hours, be cooled to room temperature and obtain estrodur performed polymer.
（3）It is prepared by polyethers performed polymer
PPG PEG is added in reactor, 110 DEG C are heated, high vacuum is dehydrated 9 hours；40 DEG C are cooled the temperature to, is led to
Enter high pure nitrogen, the isocyanates MDI that will be measured（Default-NOC% contents are 5%）Slowly it is added in reactor, treats complete
Portion makes temperature rise to 100 DEG C after adding, react 2 hours, is cooled to room temperature and obtains estrodur performed polymer.
（4）The preparation of basic magnesium chloride whisker/ester-ether copolymerization type polyurethane wave-absorption vibration damp composite material
First under the conditions of 60 DEG C, by PAUR performed polymer and Polyether-Polyol Polyurethane Prepolymer according to mass ratio 1:1 mixing,
Ester-ether copolymerization Type Polyurethane Prepolymer is obtained, is then that basic magnesium chloride whisker after 20% coupling agent treatment adds by mass fraction
In entering ester-ether copolymerization Type Polyurethane Prepolymer, and mixture is placed in supersonic wave cleaning machine 30 points are processed under 60Hz frequencies
Clock, afterwards by crosslinking agent MOCA according to amount of calculation（The quality that MOCA is added in 100 grams of reactants is WMOCA=3.18×-NCO%×
100×0.9）It is put into the mixture of base polyurethane prepolymer for use as and basic magnesium chloride whisker composition, under the conditions of being sufficiently stirred at 60 DEG C,
Reaction is poured into mould for 30 minutes afterwards, is solidified 12 hours under the conditions of 90 DEG C, then is solidified 3 hours under the conditions of 120 DEG C, is obtained
Basic magnesium chloride whisker/ester-ether copoly type polyurethane flame-proof high abrasion temperature range wave-absorption vibration composite wide.
Example four：
（1）Basic magnesium chloride whisker（BMC）Treatment
Coupling agent (its quality is the 0.5% of basic magnesium chloride whisker quality) is dissolved in excessive acetone soln first, then
Basic magnesium chloride whisker is put into the solution that this contains coupling agent, under 30kHz frequency conditions, ultrasonic disperse 0.5 hour, so
To be dried 24 hours under the conditions of 60 DEG C of dispersion product again afterwards, be obtained through the basic magnesium chloride whisker after coupling agent treatment.
（2）It is prepared by estrodur performed polymer
PEPA PEPA is added in reactor, 90 DEG C, vacuum dehydration 8 hours are heated to；Then 40 are cooled the temperature to
DEG C, high pure nitrogen is passed through, the isocyanates MDI that will be measured（Default-NOC% contents are 6%）It is slow to be added to instead
Answer in device, temperature is risen to 90 DEG C after all adding, react 2 hours, be cooled to room temperature and obtain estrodur performed polymer.
（3）It is prepared by polyethers performed polymer
PPG PTMG is added in reactor, 100 DEG C are heated, high vacuum is dehydrated 8 hours；40 DEG C are cooled the temperature to,
High pure nitrogen is passed through, the isocyanates MDI that will be measured（Default-NOC% contents are 6%）Slowly it is added in reactor, treats
Temperature is risen to 100 DEG C after all adding, react 2 hours, be cooled to room temperature and obtain estrodur performed polymer.
（4）The preparation of basic magnesium chloride whisker/ester-ether copolymerization type polyurethane wave-absorption vibration damp composite material
First under the conditions of 60 DEG C, by PAUR performed polymer and Polyether-Polyol Polyurethane Prepolymer according to mass ratio 1:1 mixing,
Ester-ether copolymerization Type Polyurethane Prepolymer is obtained, is then that basic magnesium chloride whisker after 20% coupling agent treatment adds by mass fraction
In entering ester-ether copolymerization Type Polyurethane Prepolymer, and mixture is placed in supersonic wave cleaning machine 30 points are processed under 60Hz frequencies
Clock, afterwards by crosslinking agent MOCA according to amount of calculation（The quality that MOCA is added in 100 grams of reactants is WMOCA=3.18×-NCO%×
100×0.9）It is put into the mixture of base polyurethane prepolymer for use as and basic magnesium chloride whisker composition, under the conditions of being sufficiently stirred at 60 DEG C,
Reaction is poured into mould for 30 minutes afterwards, is solidified 12 hours under the conditions of 90 DEG C, then is solidified 3 hours under the conditions of 120 DEG C, is obtained
Basic magnesium chloride whisker/ester-ether copoly type polyurethane flame-proof high abrasion temperature range wave-absorption vibration composite wide.
Comparative example：
PPG PTMG is added in reactor, 100 DEG C are heated, high vacuum is dehydrated 8 hours；40 DEG C are cooled the temperature to,
High pure nitrogen is passed through, the isocyanates MDI that will be measured（Default-NOC% contents are 6%）Slowly it is added in reactor, treats
Temperature is risen to 100 DEG C after all adding, react 2 hours, afterwards by crosslinking agent MOCA according to amount of calculation（In 100 grams of reactants
The quality for adding MOCA is WMOCA=3.18×-NCO%×100×0.9）It is put into base polyurethane prepolymer for use as, is sufficiently stirred at 60 DEG C
Under the conditions of, reaction is poured into mould for 30 minutes afterwards, is solidified 12 hours under the conditions of 90 DEG C, then solidification 3 is small under the conditions of 120 DEG C
When, EU wave-absorption vibration material is obtained.
Embodiment 1~4 is shown in Table 1 with the performance comparison of comparative example
The performance comparison of each embodiment of table 1
Claims (5)
1. a kind of fire-retardant high abrasion temperature range wave-absorption vibration composite wide, it is characterised in that the material includes ester-ether copoly type
The basic magnesium chloride whisker of polyurethane matrix and coupling agent treatment；The material is by ester-ether copolymerization that mass ratio is 90%~50%
The basic magnesium chloride whisker composition of type polyurethane and 10%~50% coupling agent treatment, and the consumption of coupling agent accounts for basic magnesium chloride crystalline substance
The mass ratio of palpus is 0.1-5%.
2. a kind of fire-retardant high abrasion temperature range wave-absorption vibration composite wide according to claim 1, it is characterised in that described
Basic magnesium chloride whisker is shaped as needle-like or threadiness.
3. a kind of fire-retardant high abrasion temperature range wave-absorption vibration composite wide according to claim 1, it is characterised in that described
Coupling agent is 3- aminopropyl triethoxysilanes, 3- aminopropyl trimethoxysilanes, 3- glycidyl ether oxygen propyl trimethoxies
Silane, 3- methacryloxypropyl trimethoxy silanes, 3- Mercaptopropyltriethoxysilanes, 3- mercaptopropyi trimethoxies
Base silane, vinyltrimethoxy silane, isopropyl three（Dioctylphyrophosphoric acid acyloxy）Titanate esters, it is double-（γ-triethoxy
Silicon substrate propyl group）One kind in tetrasulfide, 17 fluorine decyl trimethoxy silanes, stearic acid.
4. a kind of fire-retardant high abrasion temperature range wave-absorption vibration composite wide according to claim 1, it is characterised in that described
Ester-ether copolymerization type polyurethane is by polypropylene glycol（PPG）, polyethylene glycol（PEG）, polytetrahydrofuran diol（PTMG）, poly- tetrahydrochysene
Furans-propylene oxide copolymer glycols（PTHFG-POG）, one or more PPG in caster oil type, and terminal hydroxy group is poly-
Hexanedioic acid glycol ester（PEA）, terminal hydroxy group polyethylene terephthalate（PET）, benzoic anhydride polyester polyol, in fatty acid oil
One or more PEPA constitute soft section, be toluene di-isocyanate(TDI) with diisocyanate（TDI）, diphenyl methane
Diisocyanate（MDI）, 1,4- cyclohexane diisocyanates（CHDI）, methylcyclohexane diisocyanate（HTDI）, 1,4 benzene two
Isocyanates（PPDI）, norbornene alkyl diisocyanate（NBDI）In one or more isocyanates constitute hard section institute group
Into.
5. the preparation method of a kind of fire-retardant high abrasion temperature range wave-absorption vibration composite wide, it is characterised in that methods described includes
Following preparation process：
（1）The treatment of basic magnesium chloride whisker
The coupling agent that basic magnesium chloride whisker quality 0.1~5% will be accounted for first is dissolved in excessive acetone or alcohol solution, so
Basic magnesium chloride whisker is put into the solution that this contains coupling agent afterwards, under 20~35kHz frequency conditions, ultrasonic disperse 0.5
~1 hour, then will be dried 12~24 hours under the conditions of 60~70 DEG C of dispersion product again, be obtained through the alkali formula after coupling agent treatment
Magnesium chloride whisker；
（2）The preparation of PAUR performed polymer
PEPA is added in reactor, 90~120 DEG C, vacuum dehydration 5~8 hours are heated to；Cool the temperature to 40
DEG C, under nitrogen protective condition, it is slowly added to the isocyanates for measuring（Default-NOC% contents are 5 ~ 8%）To PEPA
In reactor, temperature is risen to 80~110 DEG C after all adding, after reacting 1~3 hour, be down to room temperature and obtain polyester
Type Polyurethane Prepolymer；
（3）The preparation of Polyether-Polyol Polyurethane Prepolymer
PPG is added in reactor, 90~120 DEG C are heated to, high vacuum is dehydrated 5~8 hours；Cool the temperature to
40 DEG C, under nitrogen protective condition, add the isocyanates of metering（Default-NOC% contents are 5 ~ 8%）To prepolymer reaction device
In, temperature is risen to 80~110 DEG C after all adding, after reaction 1~3 hour, being down to room temperature, to obtain EU pre-
Aggressiveness；
（4）The preparation of basic magnesium chloride whisker/ester-ether copolymerization type polyurethane wave-absorption vibration damp composite material
First under the conditions of 60 ~ 70 DEG C, by PAUR performed polymer and Polyether-Polyol Polyurethane Prepolymer according to mass ratio 1:1 mixes
Close, ester-ether copolymerization Type Polyurethane Prepolymer is obtained, be then the alkali formula chlorination after 10%~50% coupling agent treatment by mass fraction
Magnesium whisker is added in ester-ether copolymerization Type Polyurethane Prepolymer, and by mixture under 50~60Hz frequency conditions, ultrasonication
10~30 minutes, afterwards by crosslinking agent 3,3 '-two chloro- 4,4 '-diaminodiphenyl-methane（MOCA）According to amount of calculation, it is put into poly-
In the mixture of urethane performed polymer and basic magnesium chloride whisker composition, under the conditions of being sufficiently stirred at 40~60 DEG C, 20-30 points of reaction
Poured into mould after clock, solidified 12 hours under the conditions of 70~90 DEG C, then solidified 2 ~ 3 hours under the conditions of 100 ~ 120 DEG C, system
Obtain basic magnesium chloride whisker/ester-ether copoly type polyurethane flame-proof high abrasion temperature range wave-absorption vibration composite wide.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109021201A (en) * | 2018-08-16 | 2018-12-18 | 德清舒华泡沫座椅有限公司 | A kind of preparation method of high-damping high-strength polyurethane foam |
| CN110951031A (en) * | 2019-12-15 | 2020-04-03 | 安徽匠星联创新材料科技有限公司 | High-hydrolysis-resistance polyurethane damping material and preparation method thereof |
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