CN105885388A - Soft reticulated polyurethane composite material and preparation method thereof - Google Patents
Soft reticulated polyurethane composite material and preparation method thereof Download PDFInfo
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- CN105885388A CN105885388A CN201610466450.9A CN201610466450A CN105885388A CN 105885388 A CN105885388 A CN 105885388A CN 201610466450 A CN201610466450 A CN 201610466450A CN 105885388 A CN105885388 A CN 105885388A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
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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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/02—Organic and inorganic ingredients
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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
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/17—Amines; Quaternary ammonium compounds
- C08K5/19—Quaternary ammonium compounds
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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
- C08K5/00—Use of organic ingredients
- C08K5/54—Silicon-containing compounds
- C08K5/541—Silicon-containing compounds containing oxygen
- C08K5/5435—Silicon-containing compounds containing oxygen containing oxygen in a ring
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L5/00—Compositions of polysaccharides or of their derivatives not provided for in groups C08L1/00 or C08L3/00
- C08L5/08—Chitin; Chondroitin sulfate; Hyaluronic acid; Derivatives thereof
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
- C08L83/04—Polysiloxanes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/14—Applications used for foams
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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Abstract
The invention discloses a soft reticulated polyurethane composite material and a preparation method thereof. The soft reticulated polyurethane composite material comprises reticulated polyurethane and a silicon rubber material. The silicon rubber material comprises, by weight, 70-90 parts of silicon rubber, 10-20 parts of flame retardant and 1-2 parts of catalysts. Due to the fact that raw materials of the soft reticulated polyurethane composite material include the silicon rubber material, on the one hand, silicon dioxide is generated in combustion of the silicon rubber material, and a ceramic layer composed of carbon, silicon and oxygen elements can be formed on the surface of the material to play a role in heat insulation and transferring in exchange of combustible gas with oxygen, so that flame retardation is improved; on the other hand, the silicon rubber material has a stable silicon-oxygen chemical structure and endows the material with unique and excellent weatherability, and after the soft polyurethane material is wrapped and prevented from contacting with air, oxygen isolation is realized while direct ultraviolet irradiation is avoided, so that ageing resistance is improved.
Description
Technical field
The present invention relates to the technical field of polyurethane material, in particular to soft reticulated polyurethane
Composite and preparation method thereof.
Background technology
Soft reticulated polyurethane material has good elasticity and water penetration, is applied to outdoor furniture, electricity
The aspects such as device, air, water filtration,
Known soft reticulated polyurethane material is primarily present both sides technological deficiency.On the one hand embody
: its flame retardant rating is unable to reach UK furniture industry material flame-retardant test criteria BS5852, also cannot
Reach electronic enterprises UL94HF-1 class criteria；The resistance added due to flexible polyurethane material
Combustion agent mainly have phosphorus system, halogen system and nitrogen system, its fire retardant mechanism respectively: phosphorus system, in material surface shape
Become pyrophosphate protective layer, stop burning；Halogen system and nitrogenated flame retardant are to produce when polyurethane burns
Decompose, form the bigger hydrogen halides of density and the gas blanket of nitridation hydrogen, isolation sky at material surface
Gas, thus play fire-retardant effect；Flexible polyurethane material is after production reticulates material, due to too
Good permeability, its fire resistance is the most relatively low, and its flame retardant rating is unable to reach English mark BS5852 mark
Accurate.On the other hand it is embodied in: soft reticulated polyurethane material contains benzene ring structure because of material itself, it
Be irradiated with or at aerobic environment under be heated, phenyl ring can form chromophoric group, mainly benzene
Carbamate groups break oxygen chemical conversion phenyl ring imine structure on ring, thus carry out cracking differentiation, institute
With loss of properties on aging.
Summary of the invention
In view of this, one aspect of the present invention is to provide a kind of soft reticulated polyurethane composite, should
Soft reticulated polyurethane composite has preferable anti-flammability and preferable resistance to ag(e)ing.
A kind of soft reticulated polyurethane composite, its raw material comprises soft reticulated polyurethane and silica gel material
Material；According to the raw material of silica gel material described in mass parts comprise 70～90 parts of silica gel, 10～20 parts fire-retardant
Agent, 1～2 part of catalyst.
Further, 1～3 part of binding agent is also comprised according to the raw material of silica gel material described in mass parts.
Further, according to the raw material of silica gel material described in mass parts also comprise 0.5～1.5 part antibacterial
Agent.
Further, 0.2～0.8 part of froth breaking is also comprised according to the raw material of silica gel material described in mass parts
Agent.
Further, described catalyst is catalyst made from platonic.
Further, described catalyst made from platonic is that the alcoholic solution of chloroplatinic acid, platinum-vinyl siloxane are joined
One in compound, platinum-olefin complex or at least two.
Further, described fire retardant is aluminium hydroxide and/or magnesium hydroxide.
Further, described binding agent is γ-(2,3-glycidoxy) propyl trimethoxy silicane.
Another aspect of the present invention is to provide a kind of such as the preparation of above-mentioned soft reticulated polyurethane composite
Method, this preparation method the soft reticulated polyurethane composite obtained have preferable anti-flammability with
And preferable resistance to ag(e)ing.
The preparation method of a kind of such as above-mentioned soft reticulated polyurethane composite, comprises the following steps:
Make to be intended to increase the pretreatment of its surface adhesion to soft reticulated polyurethane；
Make described soft reticulated polyurethane cover the raw material of silica gel material, and make the former of described silica gel material
Material prepolymerization, obtains performed polymer composite；
Vulcanize described performed polymer composite.
A kind of method prepared as above, the described prepolymerized time is 2～6h.
The soft reticulated polyurethane composite of the present invention, its raw material comprises silica gel material, on the one hand,
Silastic material can form silicon dioxide when burning, can form carbon, silicon and oxygen element at material surface
The pottery magnetosphere of composition, plays isolation heat and the effect transmitted with oxygen exchange of fuel gas, so carries
Its anti-flammability high.On the other hand, silastic material silicone rubber has stable silica chemical constitution,
The weatherability of the unique excellent performance of material can be given, after flexible polyurethane material is wrapped up, break off
With the contact of air, thus also completely cut off oxygen and avoided the direct irradiation of ultraviolet, having which thereby enhanced
Resistance to ag(e)ing.
Detailed description of the invention
For the ease of understanding the present invention, close embodiment below and further illustrate the technical side of the present invention
Case.
As used herein, term:
" one ", " a kind of " and " described " are used interchangeably and refer to one or more.
"and/or" for represent the one or both of illustrated situation all it may happen that, such as, A
And/or B includes (A and B) and (A or B)；
It addition, all numerical value (examples that the scope stated by end points herein is comprised in the range of including this
As, 1 to 10 includes 1.4,1.9,2.33,5.75,9.98 etc.).
It addition, the statement of " at least one " herein includes that one and above all numbers are (such as,
At least 2, at least 4, at least 6, at least 8, at least 10, at least 25, extremely
Few 50, at least 100 etc.).
The soft reticulated polyurethane composite of the present invention, its raw material comprises soft reticulated polyurethane and silicon
Glue material；70～90 parts of silica gel, 10～20 parts of resistances are comprised according to the raw material of this silica gel material of mass parts
Combustion agent, 1～2 part of catalyst.Such as, the mass parts of silica gel can be 70 parts, 72 parts, 75 parts,
80 parts, 82 parts, 85 parts, 88 parts or 90 parts etc.；The mass parts of fire retardant can be 10 parts, 11
Part, 12 parts, 15 parts, 18 parts, 19 parts or 20 parts etc.；The mass parts of catalyst can be 1 part,
1.2 parts, 1.5 parts, 1.8 parts, 1.9 parts or 2 parts etc..Preferably, according to this silica gel material of mass parts
Raw material comprise 80 parts of silica gel, 15 parts of fire retardants, 1.5 parts of catalyst.
Above-mentioned silica gel refers to the material in molecular structure containing SiO repetitive.In the present invention
Silica gel can be inorganic silica gel or organic silica gel.Here, inorganic silica gel molecular structural formula is
xSiO2·yH2O, is to be formed by silicic acid gel, so being also called silicic acid gel.Inorganic silica gel is permissible
Obtaining silicic acid with sodium silicate and sulfuric acid reaction, silicic acid reacts through hydroxyls dehydrate, and through aging, sour bubble etc.
A series of last handling processes and prepare.Here, organic silica gel refers to containing Si-C key and at least
One organic group is the compound being directly connected with silicon atom, or makes organic by oxygen, sulfur, nitrogen etc.
The compound that base is connected with silicon atom.The most well-known to those skilled in the art is with siliconoxygen bond
(-Si-O-Si-) is the polysiloxanes of skeleton composition.
In the present invention, the silica bond energy contained by silica gel gives the weatherability of the unique excellent performance of material,
It is difficult to weather stain, after being combined with flexible polyurethane material parcel, breaks off the contact with air, from
And also completely cut off oxygen and avoided the direct irradiation of ultraviolet, thus effectively raise the resistance to of material
Ageing properties.Additionally, the siliconoxygen bond contained by silica gel has reinforcement, potentiation, it is remarkably improved
The mechanical property of flexible polyurethane material, tearing strength, elongation at break, rebound performance.It addition,
The feel of glue own is ice-cold, and flexible polyurethane material can regulate soft netted poly-after silica gel is compound effectively
The internal temperature of urethane so that it is suitable body temperature.
Above-mentioned catalyst can be catalyst made from platonic, it is readily appreciated that ground is, catalyst made from platonic refers to contain here
There is the catalyst of platinum element.Catalyst made from platonic is the generation stoping the transition complex that can promote depolymerization,
Meanwhile, at high temperature make side chain organic group that oxidation cross-linked reaction occurs, improve crosslink density, thus
Improve the heat stability of silicone rubber molecule, prevent it from decomposing further, and after being conducive to increasing burning
The content of residue, promotes the formation of ceramic layer and then completely cuts off air and make fray-out of flame.
Catalyst made from platonic can be platinum-non-metal complexes, as listed platinum-ol coordination compound, platinum-vinyl
A kind of and its combination in any in siloxane complex, platinum-olefin complex.Here, chloroplatinic acid
Alcoholic solution can be that chloroplatinic acid is dissolved in such as ethanol, methanol, isopropanol, capryl alcohol etc..Chloroplatinic acid is different
The collocation method of propanol can be particularly as follows: by 3g H2PtCl·6H2O is dissolved in 100ml anhydrous isopropyl alcohol,
Be sufficiently stirred for (such as room temperature) at a certain temperature so that it is complete molten after stand a period of time, both must produce
Thing, is finally that orange colour is molten, and its chemical equation is H2PtCl·6H2O+(CH3)2CHOH→
H2PtCl4(CH3)2CO+2HCl+6H2O.The collocation method of chloroplatinic acid capryl alcohol particularly as follows:
H2PtCl·6H2O and 2-ethylhexanol (capryl alcohol concrete a kind of) are the reaction mixing that 1:7 generates
Thing, under 250mm Hg pressure, under 70 DEG C of reaction 4h, water removes, and is then depressurized to 2mmHg
Making unreacted alcohol remove, be cooled to room temperature, filter, filtrate is the light brown liquid of thickness, is and contains
Platinum amount is 21% (weight), the platinum catalyst of chloride 8.3%.Here, platinum-vinyl siloxane is joined
Compound refers to that chloroplatinic acid obtains with vinyl silicone compounds complex reaction, vinylsiloxane chemical combination
Thing can be tetramethyl divinyl disiloxane (vinyl double-seal head), dimethoxy-methyl ethylene
Radical siloxane, t etram-ethyltetravinylcyclotetrasiloxane etc..With vinylsiloxane for tetramethyl diethyl
As a example by thiazolinyl disiloxane, the preparation method of platinum-vinyl siloxane coordination compound can be: with backflow
Condenser, in the reaction bulb of thermometer, adds 32g chloroplatinic acid and 210g tetramethyl divinyl two
Siloxanes, at normal pressure and 120 DEG C of backflow 1h, filters off black precipitate (platinum black) and by light gray after cooling
The anti-handy distilled water of color acid solution is washed till neutrality (removing chloride acidic by-products) and then adds nothing
Water CaCl2It is dried, leaches CaCl2After, obtain platiniferous 2.2% (mass fraction) and chloride 0.43%
The platinum-vinyl siloxane coordination compound of (mass fraction).Or with vinylsiloxane as tetramethyl
As a example by tetravinyl cyclotetrasiloxane, the preparation method of platinum-vinyl siloxane coordination compound can be 6g chlorine
Platinic acid, 180ml dehydrated alcohol and 6g NaCO3, 300g t etram-ethyltetravinylcyclotetrasiloxane exists
Reflux at 80 DEG C 2h, washes (can not wash) dry filter product.Here, platinum-carboxylate coordination compound
Refer to that chloroplatinic acid and carboxylate carry out the product of complex reaction gained.Carboxylate can be ethyl acetate, first
The aliphatic carboxylic acid esterss such as acetoacetic ester, or the aromatic carboxylic acid esters with diethyl phthalate etc..With
As a example by carboxylate, the preparation method of platinum-carboxylate coordination compound is: with reflux condenser thermometer
500ml there-necked flask in, add 1g chloroplatinic acid and 200ml dehydrated alcohol, logical N2(being dried)
Under, it being warming up to 80 DEG C of backflow 2h, be then cooled to 40 DEG C, decompression steams ethanol, obtains clear yellow viscous
Thing, after chloroform and removing solvent, just obtains solid product (extracting about 10 times), adds
50g diethyl phthalate dissolved solid thing, filters off solid slag and makes to obtain diethyl phthalate
Co-ordination complex catalyst.Except this, platinum-non-metal complexes can be also platinum-oxolane coordination compound.
The preparation method of platinum-oxolane coordination compound can be: in the reaction with reflux condenser and thermometer
In Ping, add 1g chloroplatinic acid and 200ml oxolane, at logical N2In the case of reflux 1h, cold
Add Na the most afterwards2SO4It is dried, filters off solid scoriform thing, both obtained oxolane co-ordination complex solution.
In above-mentioned platinum-non-metal complexes, the content of platinum can be 3000～10000ppm.
Catalyst made from platonic can be also known platinum catalyst.Platinum catalyst is also called platinum catalyst.
Fire retardant can use aluminium hydroxide (ATH) and/or magnesium hydroxide (MH).Aluminium hydroxide and
The fire retardant mechanism of aluminium hydroxide is for absorb heat by dehydration, relative to halogen flame and three oxidations two
For antimony, the two more environmental protection.Preferably, fire retardant can be the compounding of the two.Both are compounding has
Preferable fire-retardant concertedness, makes up and causes Flame Retardancy to decline because ATH decomposition temperature is relatively low
Defect.Compounding ratio as the two can do conventional setting according to actual needs.Certainly, also can be in two
Person adds other fire retardant, such as red phosphorus or APP (APP), it is possible to bigger raising adds
Add the LOI value of the material of this composite flame retardant system, reduce its burning smoke density.Microcapsule red phosphorus with
MH cooperative flame retardant effect, wherein the surface such as organosilicon and stearic acid processes can increase them in the substrate
Dispersibility, improve and substrate compatibility, reduce amount of flame-retardant agent, processing characteristics is improved, and subtracts
Physical and mechanical properties is affected by little fire retardant, has the fire-retardant synergistic of excellence.Also can be to resistance in the present invention
Surface modification is made in combustion agent.Specifically, by silane coupler, calcium stearate, magnesium oleate mixture at
Reason MH, had both improved surface property, and can form good carbonized structure when burning again, carry further
High fire-retardance and mechanical mechanics property.Stearic acid can be effectively improved MH/ PP composite material toughness,
But reduce the stretch bending performance of material simultaneously.A soft interface is had when between filler grain and polymeric matrix
During layer, weak interface interaction just be enough to make material have enough toughness.For higher the gathering of loading
Compound composite material. the dispersion of filler produces material impact, dispersion quality for the mechanical performance of material
Depend on the interaction between particle and between particulate polymer, and particle interphase interaction is strong and weak main
Determined by the particles size and distribution of particle.Generally, larger particles causes polymer drought period to rupture, less
Granule can form again reunion, and the two has decisive influence to the physical and mechanical properties of material.
The raw material of the silica gel material of the present invention also can comprise 1～3 part of binding agent according to mass parts.Bonding
The mass parts of agent can be 1 part, 1.1 parts, 1.2 parts, 1.5 parts, 2 parts, 2.5 parts, 2.8 parts,
2.9 parts or 3 parts.Binding agent is otherwise known as bonding agent herein.
Binding agent can list the example of γ-(2,3-glycidoxy) propyl trimethoxy silicane.γ
The molecular structural formula of-(2,3-glycidoxy) propyl trimethoxy silicane isIts No. CAS is 2530-83-8.Of course, binding agent can be also it
It has the material of epoxide group, as
The raw material of the silica gel material of the present invention also comprises 0.5～1.5 part of antibacterial according to mass parts, such as
The mass parts of antibacterial can be 0.5 part, 0.51 part, 0.52 part, 0.55 part, 0.58 part, 0.60
Part, 0.70 part, 0.90 part, 1.3 parts, 1.4 parts, 1.45 parts, 1.48 parts, 1.49 parts or 1.50
Part etc..
Here antibacterial can be the mixture of organic antibacterial agent and natural antibacterial agent, and this organic antibacterial agent is
Season presses salt compounds, and this natural antibacterial agent is chitin.
The raw material of the silica gel material of the present invention also comprises 0.2～0.8 part of defoamer according to mass parts, such as
The mass parts of defoamer can be 0.2 part, 0.21 part, 0.22 part, 0.25 part, 0.30 part, 0.40
Part, 0.50 part, 0.70 part, 0.75 part, 0.78 part, 0.79 part, 0.80 part etc..
Here, defoamer can reduce surface tension, and suppression foam produces or eliminates and produced foam
Auxiliary agent, it can use and it is known in the art that such as emulsified silicone oil, the fatty acid ester compounded thing of higher alcohols, poly-
Oxygen ethylene polyoxypropylene tetramethylolmethane ether, polyoxyethylene polyoxy propanol amidogen ether, polypropylene glycerol aether and
Polyoxyethylene polyoxypropylene glycerin ether, polydimethylsiloxane etc..
Raw material in the present invention also can comprise white carbon, it is intended that white carbon can be flammable by dilution
Substrate concentration improves the interaction force of silicone rubber molecule and improves its heat stability, and white carbon is accumulated to
Polymer melt surface is conducive to the generation of ceramic layer and the lifting of flame retardant effect.So, compared to soft
Polyurethane material, silastic material is adding aluminium hydroxide, and platinum catalyst, after white carbon, it is fire-retardant
Performance is significantly improved, and flexible polyurethane material is by improving anti-flammability after its compound, parcel.
Here white carbon is white powder X-ray amorphous silicic acid and the general name of silicate product, main
Precipitated silica to be referred to, aerosil and superfine silicon dioxide gel, also include powder
Synthetic aluminium silicate and calcium silicates etc..White carbon is porous material, the available SiO of its composition2·nH2O
Represent, wherein nH2O is presented in surface hydroxyl.Content as white carbon can be according to reality
Border needs to make routine and adjusts, and is not construed as limiting in this.
Above-mentioned soft reticulated polyurethane refers to that inside has cancellated polyurethane, and the present invention's is soft
Reticulated polyurethane can use commercially available or prepare according to known methods.
The preparation method of the soft reticulated polyurethane composite of the present invention, comprises the following steps:
Make to be intended to increase the pretreatment of its surface adhesion to soft reticulated polyurethane；
Make described soft reticulated polyurethane cover the raw material of silica gel material, and make the former of described silica gel material
Material prepolymerization, obtains performed polymer composite；
Vulcanize described performed polymer composite
The above-mentioned pretreatment being intended to increase its surface adhesion can be that Polyethylene Glycol puts on poly-ammonia
Ester articles surface, then the polyurethane product being applied with Polyethylene Glycol is placed in plasma producing apparatus
Carry out plasma gas sur-face modification, arrange the power of plasma producing apparatus be 10～
1500w, process time are 0.5～120min, afterwards will be through plasma gas sur-face modification
Polyurethane product acetone or deionized water wash, under room temperature be dried, get product.Certainly, also
Can be for form known to other.
Above-mentioned prepolymerized temperature is not particularly limited, and can be the temperature of conventional silica gel material solidification.
The prepolymerized time can be 2～6h, such as 2h, 2.5h, 3h, 4h, 5h, 5.5h or 6h etc..
The time of above-mentioned sulfuration and temperature, can adjust according to according to material thickness, density, characteristic requirements.
Embodiment 1
The preparation method of the present invention soft reticulated polyurethane composite, comprises the following steps:
(1), the soft reticulated polyurethane material prepared is processed, this process include desulfurization,
Remove abnormal flavour and be intended to the pretreatment improving soft reticulated polyurethane material through face bonding force)；
(2), prepare compound silicone rubber (by 70 parts of silica gel, 10 parts of fire retardants, 1 part of catalyst,
1 part of binding agent and 0.2 part of defoamer are placed in premix reactor, mix homogeneously)；
(3), the silastic material mixed in reactor is extracted in equipment complex hopper, by soft
Reticulated polyurethane material is entered by equipment complex entrance, makes silastic material be combined (table uniformly, completely
Face covers) on reticulated polyurethane material；
(4), the product being combined is carried out pre-polymerization 2 hours according to characteristic requirements；
(5), finally enter vulcanizing equipment, after having vulcanized, be the formation of novel composite.
Embodiment 2
(1), the soft reticulated polyurethane material prepared is processed, this process include desulfurization,
Remove abnormal flavour and be intended to the pretreatment improving soft reticulated polyurethane material through face bonding force)；
(2), prepare compound silicone rubber (by 90 parts of silica gel, 20 parts of fire retardants, 2 parts of catalyst,
3 parts of binding agents and 0.8 part of defoamer are placed in premix reactor, mix homogeneously)；
(3), the silastic material mixed in reactor is extracted in equipment complex hopper, by soft
Reticulated polyurethane material is entered by equipment complex entrance, makes silastic material be combined (table uniformly, completely
Face covers) on reticulated polyurethane material；
(4), the product being combined is carried out pre-polymerization 6 hours according to characteristic requirements；
(5), finally enter vulcanizing equipment, after having vulcanized, be the formation of novel composite.
Embodiment 3
(1), the soft reticulated polyurethane material prepared is processed, this process include desulfurization,
Remove abnormal flavour and be intended to the pretreatment improving soft reticulated polyurethane material through face bonding force)；
(2), prepare compound silicone rubber (by 80 parts of silica gel, 10 parts of fire retardants, 1 part of catalyst,
1 part of binding agent and 0.5 part of defoamer are placed in premix reactor, mix homogeneously)；
(3), the silastic material mixed in reactor is extracted in equipment complex hopper, by soft
Reticulated polyurethane material is entered by equipment complex entrance, makes silastic material be combined (table uniformly, completely
Face covers) on reticulated polyurethane material；
(4), the product being combined is carried out pre-polymerization 4 hours according to characteristic requirements；
(5), finally enter vulcanizing equipment, after having vulcanized, be the formation of novel composite.
Embodiment 4
(1), the soft reticulated polyurethane material prepared is processed, this process include desulfurization,
Remove abnormal flavour and be intended to the pretreatment improving soft reticulated polyurethane material through face bonding force)；
(2), prepare compound silicone rubber (by 80 parts of silica gel, 15 parts of fire retardants, 1.5 parts of catalyst,
2 parts of binding agents and 0.6 part of defoamer are placed in premix reactor, mix homogeneously)；
(3), the silastic material mixed in reactor is extracted in equipment complex hopper, by soft
Reticulated polyurethane material is entered by equipment complex entrance, makes silastic material be combined (table uniformly, completely
Face covers) on reticulated polyurethane material；
(4), the product being combined is carried out pre-polymerization 4 hours according to characteristic requirements；
(5), finally enter vulcanizing equipment, after having vulcanized, be the formation of novel composite.
The soft reticulated polyurethane composite of the present invention has the advantage that
1, the fire resistance that silica gel is excellent is transplanted on flexible polyurethane foams, thus increases substantially
The fire resistance of flexible polyurethane foams；The fire retardant variety adoption of silica gel can pass through California 65 ring
Guaranteed request, uses common (need not add fire retardant) flexible polyurethane foams and meets California 65 ring
The silica gel fire retardant of guaranteed request is combined, compound after material can meet California 65 environmental requirement and
BS5852 test request；
2, after silica gel and flexible polyurethane foams are compound, the environmental-protecting performance of silica gel food stage, stability,
Mechanical property, ageing-resistant performance can be manifested in the material after being combined well.
Owing to the numerical range of each technological parameter involved in the present invention is the most impossible
All embody, as long as but those skilled in the art is the most envisioned falls into this numerical range above-mentioned
In any numerical value all can implement the present invention, the most also include appointing of occurrence in the range of some numerical value
Meaning combination.Herein, for the consideration of length, eliminate and provide tool in certain one or more numerical range
The embodiment of body value, this is not to be construed as the insufficient disclosure of technical scheme.
Applicant state, the present invention by above-described embodiment illustrate the present invention detailed process equipment and
Technological process, but the invention is not limited in above-mentioned detailed process equipment and technological process, i.e. it is not intended that
The present invention and have to rely on above-mentioned detailed process equipment and technological process could be implemented.Art
Technical staff it will be clearly understood that any improvement in the present invention, the equivalence of raw material each to product of the present invention
Replace and the interpolation of auxiliary element, concrete mode selection etc., be within the scope of the present invention.
Claims (10)
1. a soft reticulated polyurethane composite, it is characterised in that its raw material comprises soft net
Shape polyurethane and silica gel material；70～90 parts of silicon are comprised according to the raw material of silica gel material described in mass parts
Glue, 10～20 parts of fire retardants, 1～2 part of catalyst.
Soft reticulated polyurethane composite the most according to claim 1, it is characterised in that
1～3 part of binding agent is also comprised according to the raw material of silica gel material described in mass parts.
Soft reticulated polyurethane composite the most according to claim 1, it is characterised in that
0.5～1.5 part of antibacterial is also comprised according to the raw material of silica gel material described in mass parts.
Soft reticulated polyurethane composite the most according to claim 1, it is characterised in that
0.2～0.8 part of defoamer is also comprised according to the raw material of silica gel material described in mass parts.
Soft reticulated polyurethane composite the most according to claim 1, it is characterised in that
Described catalyst is catalyst made from platonic.
Soft reticulated polyurethane composite the most according to claim 5, it is characterised in that
Described catalyst made from platonic is platinum-ol coordination compound, platinum-vinyl siloxane coordination compound, platinum-carboxylate cooperation
One in thing or at least two.
Soft reticulated polyurethane composite the most according to claim 1, it is characterised in that
Described fire retardant is aluminium hydroxide and/or magnesium hydroxide.
Soft reticulated polyurethane composite the most according to claim 1, it is characterised in that
Described binding agent is γ-(2,3-glycidoxy) propyl trimethoxy silicane.
9. a preparation method for soft reticulated polyurethane composite as claimed in claim 1, its
It is characterised by, comprises the following steps:
Make to be intended to increase the pretreatment of its surface adhesion to soft reticulated polyurethane；
Make described soft reticulated polyurethane cover the raw material of silica gel material, and make the former of described silica gel material
Material prepolymerization, obtains performed polymer composite；
Vulcanize described performed polymer composite.
10. a preparation method as claimed in claim 9, it is characterised in that described prepolymerized time
Between be 2～6h.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610466450.9A CN105885388A (en) | 2016-06-21 | 2016-06-21 | Soft reticulated polyurethane composite material and preparation method thereof |
| PCT/CN2017/089413 WO2017219989A1 (en) | 2016-06-21 | 2017-06-21 | Soft mesh polyurethane composite material and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610466450.9A CN105885388A (en) | 2016-06-21 | 2016-06-21 | Soft reticulated polyurethane composite material and preparation method thereof |
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| CN201610466450.9A Pending CN105885388A (en) | 2016-06-21 | 2016-06-21 | Soft reticulated polyurethane composite material and preparation method thereof |
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| WO (1) | WO2017219989A1 (en) |
Cited By (2)
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| WO2017219989A1 (en) * | 2016-06-21 | 2017-12-28 | 东莞市中瑞高分子材料有限公司 | Soft mesh polyurethane composite material and manufacturing method thereof |
| CN111873580A (en) * | 2020-07-23 | 2020-11-03 | 东莞市中瑞高分子材料有限公司 | Composite material of silicone rubber and reticular polyurethane, preparation method and application |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114105598B (en) * | 2021-12-20 | 2022-07-15 | 深圳市源锋兴业科技有限公司 | Antibacterial silica gel product and production process thereof |
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| CN111873580A (en) * | 2020-07-23 | 2020-11-03 | 东莞市中瑞高分子材料有限公司 | Composite material of silicone rubber and reticular polyurethane, preparation method and application |
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| WO2017219989A1 (en) | 2017-12-28 |
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