CN109914117A - A kind of flame-retardant leather, preparation method and application - Google Patents
A kind of flame-retardant leather, preparation method and application Download PDFInfo
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Abstract
The invention discloses a kind of flame-retardant leathers and preparation method thereof, it is using organic silica gel as main component, with modified nano silica and modified layered bi-metal oxide for the fire-retardant factor, utilize the synergistic effect between each component, such as the cooperative flame retardant effect between the fire-retardant factor, bonding action between modified manometer silicon dioxide and dimethicone, synergistic effect etc. between high viscosity dimethicone and low-viscosity dimethicone, and technique is improved, acquisition has good flame-retardance energy, the mechanical property and environmental requirement of material are combined again, furniture can be met, the performance requirement of house ornamentation and craftwork leather, has vast market prospect.
Description
Technical field
The present invention relates to leather substance preparation fields, and in particular to a kind of flame-retardant leather, preparation method and application.
Background technique
Currently, the production technology of domestic and international artificial leather, synthetic leather is broadly divided into dry method polyurethane leather-making technology and wet process is poly-
Urethane leather-making technology and aqueous polyurethane technique.These methods will use solvent type polyurethane resin in process of production,
Due to containing the poisonous and hazardous chemical solution such as a large amount of dimethylformamide (DMF), toluene, butanone in solvent type polyurethane resin
Agent can all cause huge injury to environment, human body by volatilizing and remaining.
Applicant is previously passing through a large amount of R&D works, has developed and is prepared using organic silica gel and environment-friendly type auxiliary material
Environment-friendly type synthetic leather, but not yet to the environment-friendly type synthetic leather carry out for certain specific application scene specific aim improve,
Its application is restricted.
Due to its special quality, the texture that can visually provide to people provides good leather in tactile
Sense of touch, therefore, leather are usually high-end word of representing, and use scope is also increasingly extensive, are gradually expanded to from initial wearing
Top-grade consumption, such as in furniture, house ornamentation and craftwork field, there is very vast market prospect.
For furniture, house ornamentation and craftwork, other than requiring leather environmental protection, more to leather propose it is higher wear-resisting and
Flame-retardancy requirements.It is fire-retardant mainly to be realized by non-halogen and halogen flame for conventional urethane leather.Halogen flame tool
Have larger harm, be gradually eliminated, non-halogen flame retardant, such as magnesium hydroxide, with good anti-flammability, but its need compared with
Big dosage can just play one's part to the full, meanwhile, with the increase of dosage, mechanical property, the texture of material etc. deteriorate.Together
When, the active force in the leather of magnesium hydroxide is weaker, is easy to be lost during scouring, its flame retardant property after long-term cleans
Sharply deteriorate.
Currently, the rarely seen fire-retardant research carried out for environmental-friendly leather prepared by organic silica gel, and it is poly- to be applied to tradition
More or less there is this or that in the non-halogen flame retardant on urethane leather, can not directly cover used in organic silica gel institute
On the environmental-friendly leather of preparation, therefore, it is necessary to be used as special topic to study the fire-retardant of such environmental-friendly leather.
Summary of the invention
The purpose of the present invention is to provide a kind of flame-retardant leathers, preparation method and application.
To achieve the above object, the invention adopts the following technical scheme:
A kind of flame-retardant leather, including surface layer, intermediate binder layer, bottom and the base cloth layer successively bonded, the surface layer is by weight
Measuring number includes following components:
Organic silica gel, 80-100 parts；
Curing agent, 8-10 parts；
Modified layered double-metal hydroxide, 10-30 parts；
Dimethicone, 6-12 parts；
The ratio of the parts by weight of modified manometer silicon dioxide, parts by weight and the modified layered double-metal hydroxide
Value is not less than 8%, and parts by weight and the ratio of total weight number are not more than 1.9%.
Preferably, the modified layered double-metal hydroxide presses (3- by odium stearate and layered double hydroxide
5): 100 parts by weight proportion modification forms.
Preferably, the modified manometer silicon dioxide presses (12-18) by oxypropyl trimethyl silane and nano silica:
100 parts by weight proportion modification forms.
Preferably, the dimethicone is made of high viscosity dimethicone and low-viscosity dimethicone, the height
The k value of viscosity dimethicone is 100-300mPas/25 DEG C, and the k value of the low-viscosity dimethicone is no more than
50mPas/25 DEG C, the parts by weight of the low-viscosity dimethicone are 2-3 parts.
The present invention also provides a kind of preparation methods of flame-retardant leather, comprising:
The preparation of S1, surface layer:
Take 80-100 parts of organic silica gel, 8-10 parts of curing agent, modified layered double-metal hydroxide 10-30 parts be mixed to form
Slurry；
4-9 parts of high viscosity dimethicone for being 100-300mPas/25 DEG C with k value is by a slurry viscosity
It is adjusted to 100000~120000mPas/25 DEG C, forms secondary slurry；
It takes a certain amount of modified manometer silicon dioxide to be mixed into the secondary slurry, forms slurry three times, the modification
The ratio of the parts by weight of nano silica and the parts by weight of the modified layered double-metal hydroxide is not less than 8%,
The parts by weight of the modified manometer silicon dioxide and the ratio of total weight number are no more than 1.9%；
The slurry three times is coated in release paper/film surface, coating thickness 0.1mm inputs thereafter the multisection type temperature difference
In baking oven, the multisection type temperature difference baking oven successively has one 110 DEG C of low-temperature space, one 120 DEG C of middle warm area and one 130 DEG C
High-temperature region, film toast 1min in the low-temperature space, toast 2min in the middle warm area；
Low-viscosity dimethicone by 2-3 parts of k value no more than 50mPas/25 DEG C is coated uniformly on by described
On the film of middle warm area output, the high-temperature region baking 1min is inputted thereafter, obtains surface layer；
S2, the production for being sequentially completed intermediate binder layer, bottom and base cloth layer.
Preferably, the modified layered double-metal hydroxide is prepared in the following manner:
Odium stearate and layered double hydroxide are pressed (3-5): reaction kettle is added in 100 parts by weight proportion,
75-85 DEG C of temperature range stirs 1 hour, and ultrasonic disperse is primary within during which interval 10-15 minutes, 3-5 minutes each.
Preferably, the modified manometer silicon dioxide is prepared in the following manner:
A certain amount of oxypropyl trimethyl silane is added in hydrolyzate and hydrolyzes 30 ± 5min at a temperature of 70-75 DEG C, is obtained
Hydrolysis reactant；A certain amount of dehydrated alcohol is added in a certain amount of nano silica, ultrasonic disperse 10-15min is divided
Dispersion liquid；Hydrolysis reactant and dispersion liquid are warming up to 80-85 DEG C in a kettle, and are cooled to room temperature after constant temperature stirring 4H, is obtained
To coolant liquid；Coolant liquid is centrifuged, is dried to constant humidity, modified manometer silicon dioxide is obtained；
The hydrochloric acid that ethyl alcohol and concentration of the hydrolyzate by volume fraction greater than 75% are 0.1mol/L is prepared by 1:1 volume
It forms；
Each material adding proportion is as follows:
| Oxypropyl trimethyl silane | Nano silica | Hydrolyzate | Dehydrated alcohol |
| 12-18g | 100g | 1000mL | 500ml |
The invention also discloses a kind of applications of flame-retardant leather as the aforementioned, are applied to furniture, house ornamentation and craftwork.
After adopting the above technical scheme, compared with the background technology, the present invention, having the advantages that
1, the present invention uses layered bi-metal (bimetallic herein for metal ion, and non-heavy metal) hydroxide conduct
Fire retardant, in heated or burning, layered double hydroxide is when burning or being heated, between free water between layers and laminate
Combination water thermally decomposed, take away amount of heat, while thering is part carbonate to be thermally decomposed into carbon dioxide together with vapor
Evolution, carbon dioxide is inert gas, oxygen concentration while taking away heat in diluent air；Solid product after decomposition
There are very big specific surface area and stronger alkalinity, the smog of release can be thermally decomposed by absorbing material in time, and play and press down cigarette, eliminate smoke
Effect；Meanwhile the decomposition temperature of layered double hydroxide includes low-temperature end and temperature end, has widened resistance combustion temperature range,
The advantages of having had both aluminium hydroxide and flame retardant of magnesium hydroxide.
2, present invention adds nano silicas, for improving the anti-tensile, tear-proof and wearability of leather.Meanwhile by
It is very big in the specific surface area of nano silica, and density is small, can be easily collected on melting face in combustion, thus with layer
Fine and close carbon-coating is collectively formed in shape double-metal hydroxide, hinders melting face and extraneous heat and substance to transmit, plays collaboration
Fire-retardant effect reduces the usage amount of layered double hydroxide.
3, the present invention is modified nano silica and layered double hydroxide, avoids nanometer titanium dioxide
The agglomeration of silicon and layered double hydroxide makes it have better dispersibility, meanwhile, with organic silica gel substrate
Compatibility is also more preferable.Meanwhile modified nano silica is easy to react using its activity with dimethicone, is formed
Network-like microporous membrane structure, improves the mechanical property of colloid.
4, the present invention is used cooperatively using the dimethicone of full-bodied dimethicone and low-viscosity, not only makes face
The texture of layer is finer and smoother, moreover it is possible to be filled out using the high osmosis of low-viscosity dimethicone to the micropore in microporous membrane
It fills, so that the conjugation of layered double hydroxide and nano silica and substrate is more preferable.
5, the present invention does not use poisonous and harmful substance, safety and environmental protection during the preparation process.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
Embodiment 1
The preparation of flame-retardant leather surface layer:
Take 80-100 parts of organic silica gel, 8-10 parts of curing agent, modified layered double-metal hydroxide 10-30 parts be mixed to form
Slurry；
4-9 parts of high viscosity dimethicone for being 100-300mPas/25 DEG C with k value is by a slurry viscosity
It is adjusted to 100000~120000mPas/25 DEG C, forms secondary slurry；
It takes a certain amount of modified manometer silicon dioxide to be mixed into the secondary slurry, forms slurry three times, the modification
The ratio of the parts by weight of nano silica and the parts by weight of the modified layered double-metal hydroxide is not less than 8%,
The parts by weight of the modified manometer silicon dioxide and the ratio of total weight number are no more than 1.9%；
The slurry three times is coated in release paper/film surface, coating thickness 0.1mm inputs thereafter the multisection type temperature difference
In baking oven, the multisection type temperature difference baking oven successively has one 110 DEG C of low-temperature space, one 120 DEG C of middle warm area and one 130 DEG C
High-temperature region, film toast 1min in the low-temperature space, toast 2min in the middle warm area；
Low-viscosity dimethicone by 2-3 parts of k value no more than 50mPas/25 DEG C is coated uniformly on by described
On the film of middle warm area output, the high-temperature region baking 1min is inputted thereafter, obtains surface layer.
Specific sample is as shown in the table:
In table, A represents organic silica gel, B represents curing agent, C represents modified modified layered double hydroxide, D is represented
High viscosity dimethicone, E represent low-viscosity dimethicone, F represents modified manometer silicon dioxide.Such as certain component numerical value in table
It is 0, and single step is only to add the component, then cancels the single step.
Organic silica gel employed in the present embodiment is the polysiloxanes of content 100%, molecular formula: aSiO2·nH2O；Institute
State the polysiloxanes that curing agent is content 100%, molecular formula: bSiO2·nH2O；A and b is the degree of polymerization, is all larger than 2, and a > b；n
It is 1~3.The organic silica gel is the add-on type silica gel of the prosperous silica gel Co., Ltd production of making profits in Xiamen；The curing agent is Xiamen
The add-on type silica gel curing agent of prosperous silica gel Co., Ltd production of making profits.Extended meeting is discussed in detail after modified component.
Fire retardancy test: since above-mentioned sample is intended merely to preparation surface layer, in practical application there are also intermediate binder layer, bottom and
Base cloth layer, so surface thickness is relatively thin.And tested according to B grades of fire-retardant ranks of fire proofing standard ANSI/UL-94-1985 standard,
The thickness minimum of sample need to be 3mm, and therefore, referring to the proportion of sample 1-13, preparation is long 127, wide 12.7, minimum thickness 3mm
Fire-retardant strip 1-13 (drying time corresponds to linearly increasing in preparation process), to examine the fire retardancy of surface layer.
Its result is as follows:
It can be seen from the comparing result of fire-retardant strip 1 and fire-retardant strip 2 after being added to modified manometer silicon dioxide,
The anti-flammability of surface layer is obviously improved.
In the case where quantitative modified bimetallic hydroxide it can be seen from the comparing result of fire-retardant strip 1-4, with changing
The increase of property nanometer titanium dioxide silicone content, the flame retardant effect of strip is more obvious, this illustrates modified manometer silicon dioxide and modification
Double-metal hydroxide has apparent cooperative flame retardant to act on.
When modified manometer silicon dioxide and modified bimetallic hydroxide it can be seen from the comparing result of fire-retardant strip 4-9
After the ratio of object reaches 8%, the promotion of flame retardant effect tends to be limited, and micro promotion is fire-retardant with nano silica itself
Effect is related.
It can be seen from the comparing result of fire-retardant strip 9-13 when the component of modified bimetallic hydroxide increases, resistance
Fire effect promoting.
Mechanical property test: Mechanics Performance Testing is carried out with fire-retardant strip, result is as follows:
With the increase of modified manometer silicon dioxide, the mechanics of surface layer it can be seen from the test result of fire-retardant strip 1-7
Performance is improved, this is because improved silica has high-specific surface area and high activity, can carry out key with organic silica gel
It closes and forms network-like structure, improve mechanical property.
The add value of modified manometer silicon dioxide is total weight number it can be seen from the test result of fire-retardant strip 7-9
1.9 be preferred, with further increasing for modified manometer silicon dioxide, the mechanical property of surface layer reduces instead, this is because mistake
At certain positions agglomeration occurs for more modified manometer silicon dioxides, causes stress to concentrate, reduces the mechanics of surface layer instead
Performance.Thus, it will be seen that being a relatively contradictory relationship between the fire-retardant factor and the tensile property of material, although this hair
It is bright that some reconciliations have been done to the two so that as sample 7, sample 11-13 tension and it is fire-retardant on be superior to conventional silica gel leather, but
It should give priority to according to demand in practical application.
Washing experiment:
Referring to the proportion of sample 7 and sample 14, manufacture washing strip, the difference is that it is double to be all made of unmodified stratiform
Metal hydroxides and nano silica, preparation comparison strip 1 and comparison strip 2.Fire-retardant strip 7,14 and 15 is selected to carry out
Normal Wash condition is imitated in washing experiment, washing, every time rinsing 20 minutes.Thereafter fire retardancy test is repeated with the strip of drying, it can
Obtain following result (each numerical value represents burning velocity, unit mm/min):
| Washing times | 0 | 2 | 4 | 6 | 8 | 10 |
| Compare strip 1 | 27.2 | 28.1 | 30.2 | 32.1 | 35.4 | 36.4 |
| Compare strip 2 | 27.3 | 34.3 | 36.8 | 38.7 | 39.5 | 40.4 |
| Fire-retardant strip 7 | 26.0 | 26.2 | 26.3 | 26.3 | 26.4 | 26.4 |
| Fire-retardant strip 14 | 26.1 | 26.5 | 27.1 | 27.4 | 27.6 | 28.1 |
| Fire-retardant strip 15 | 26.1 | 26.2 | 26.3 | 26.3 | 26.3 | 26.4 |
It is compared from comparison strip 1, fire-retardant strip 7, if be modified, to the fixed work of the fire-retardant factor in the leather
With having a significant impact, comparison strip 1 is after multiple washing, and flame retardant property is decreased obviously, the reason is that unmodified resistance
The compatibility for firing the factor and organic silica gel is poor.
It is added to it can be seen from the comparison of comparison strip 1 and comparison strip 2 and fire-retardant strip 7 and fire-retardant strip 14
The strip of the dimethicone of low-viscosity is more preferable to the adsorption effect of the fire-retardant factor, this is because it has high osmosis, can seep
Enter in micro- cavernous structure of film, micropore is filled, meanwhile, for low-temperature space and the issuable air blister defect of middle warm area
It is made up, while fixing the fire-retardant factor, also makes the quality of surface layer more fine and smooth.
By the comparison of fire-retardant strip 7 and fire-retardant strip 15 as can be seen that although fire-retardant strip 15 is added to more low stick
Dimethicone is spent, but it is no longer obvious to the fixed function growth of the fire-retardant factor.
Embodiment 2
In the present embodiment, modified layered double-metal hydroxide used by the application is illustrated.
Modified layered double-metal hydroxide: odium stearate and layered double hydroxide (neutral pH) are pressed into (3-
5): reaction kettle is added in 100 parts by weight proportion, stirs 1 hour in 75-85 DEG C of temperature range, during which interval 10-15 minutes super
Sound dispersion is primary, 3-5 minutes each.
With the influence for comparing activation index:
| Odium stearate additive amount | 1% | 3% | 5% | 7% | 10% |
| Activation index | 0.23 | 0.89 | 0.985 | 0.987 | 0.988 |
Applicant has found under study for action, and at the beginning with the increase of odium stearate, activation index rapidly rises, but when hard
When resin acid sodium increases to the 5% of about layered double hydroxide content, activation index tends towards stability (close to 1), at this time after
Continuous to increase, activation index tends towards stability.And simultaneously, excessive odium stearate will affect the mechanical property of material.
Influence of the reaction temperature to activation index:
| Temperature (DEG C) | 30 | 50-70 | 75 | 80 | 85 | 90 | 95 | 100 |
| Activation index | 0.86 | 0.962 | 0.981 | 0.985 | 0.983 | 0.982 | 0.98 | 0.97 |
As can be seen that when initial as the temperature increases, it is living that odium stearate is adsorbed on layered double hydroxide first
Property the best part, activation index steeply rises, thereafter 50-70 DEG C of temperature range enter it is gentle increase area, then in 75-85
DEG C temperature range reaches wave crest, thereafter as the rising of temperature is on a declining curve instead.
Embodiment 3
The preparation of improved silica: a certain amount of oxypropyl trimethyl silane (KH560) is added in hydrolyzate in 70-75
30 ± 5min is hydrolyzed at a temperature of DEG C, obtains hydrolysis reactant；A certain amount of nano silica (10-30nm) is added a certain amount of
Dehydrated alcohol, ultrasonic disperse 10-15min obtains dispersion liquid；Hydrolysis reactant is warming up in a kettle with dispersion liquid
80-85 DEG C, and be cooled to room temperature after constant temperature stirring 4H, obtain coolant liquid；Coolant liquid is centrifuged, is dried to constant humidity,
Obtain modified manometer silicon dioxide；
The hydrochloric acid that ethyl alcohol and concentration of the hydrolyzate by volume fraction greater than 75% are 0.1mol/L is prepared by 1:1 volume
It forms；
Each material adding proportion is as follows:
| Oxypropyl trimethyl silane | Nano silica | Hydrolyzate | Dehydrated alcohol |
| 12-18g | 100g | 1000mL | 500ml |
With the influence for comparing activation index:
| Oxypropyl trimethyl silane | 5% | 10% | 15% | 20% | 25% |
| Grafting rate | 7% | 7.8% | 9.6% | 8.3% | 7.7% |
With the increase of the dosage of oxypropyl trimethyl silane, grafting rate obviously rises, and in itself and nano silica
When ratio reaches 15%, reach highest.Hereafter, the dosage of oxypropyl trimethyl silane is excessive, and extra oxypropyl trimethyl silane holds
Autohemagglutination easily occurs and to generate aggregate between particle, and generates siloxanes anion and to be grafted on nanometer titanium dioxide
The oxypropyl trimethyl silane depolymerization of silicon face, causes grafting rate to decline instead.
Influence of the reaction temperature to grafting rate:
| Temperature (DEG C) | 30 | 60 | 75 | 80 | 85 | 90 | 95 | 100 |
| Grafting rate | 6.3% | 9.5% | 10.1% | 10.4% | 10.3% | 10.1% | 10.0% | 9.9% |
With the rising of temperature, grafting rate obviously rises, and reaches peak in 80-85 DEG C of section, thereafter, due to temperature
Excessively high, Brownian movement is excessively fierce, and the collision probability of nano silica increases, and is easy to happen agglomeration, and causes to be grafted
Rate tends towards stability or even subtle decline.
Embodiment 4
On the basis of embodiment 1, other layers of preparation is carried out.
It prepares intermediate binder layer: after being mixed into organic silica gel slurry with 10 parts of curing agent for 80~120 parts of organic silica gel, adding
Add 8~60 parts of toner, then the organic silica gel P41 slurry viscosity is adjusted to 250000 with 0~20 part of vinyl silicone oil~
300000mPas/25 DEG C, and it is coated in the facing surface, coating thickness 0.1mm (uses embodiment 1 through gradient is dry
In multisection type temperature difference baking oven) form intermediate binder layer；
It prepares bottom and is bonded with base cloth layer: being mixed into organic silica gel 2 with 10 parts of curing agent for 80~120 parts of organic silica gel
After slurry, 2~5 parts of nano silica, 2~5 parts of silane coupling agent are added, then slurry is sticked with 0~20 part of vinyl silicone oil
Degree is adjusted to 15000~25000mPas/25 DEG C, and is coated on the intermediate binder layer, coating thickness 0.15mm, then with base
Layer of cloth fitting forms final silica gel leather (i.e. using the multisection type temperature difference baking oven in embodiment 1) through gradient is dry.
The base cloth layer is looped fabric, woven fabric, super fiber, Glove suede or woven dacron.
In bottom preparation process, the preferred trimethoxy silane of silane coupling agent, γ-(2,3- the third oxygen of epoxy) propyl front three
Oxysilane or vinyl three (beta-methoxy ethyoxyl) silane, by the diffusion and coupled action of molecule, coupling agent migration
Into nano silica and in organic silica gel, increase its bonding effect with base cloth layer.
Embodiment 5
The flame-retardant leather gone out using embodiment 1 or the preparation of embodiment 4, surface layer are had good fire resistance property, can had
Effect prevents the scald etc. on surface, is provided simultaneously with fine and smooth texture, and preferable mechanical property, does not add nuisance in preparation process
Matter, it is extremely environmentally friendly, it is able to satisfy furniture (such as sofa, massage armchair etc.), house ornamentation (the soft dress decoration or other soft of such as wall metope
Dress decoration etc.) and craftwork (such as leather pen container, leather goods of furniture for display rather than for use, leather embrace part) actual demand.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by anyone skilled in the art,
It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with scope of protection of the claims
Subject to.
Claims (8)
1. a kind of flame-retardant leather, including surface layer, intermediate binder layer, bottom and the base cloth layer successively bonded, which is characterized in that described
Surface layer includes following components in parts by weight:
Organic silica gel, 80-100 parts；
Curing agent, 8-10 parts；
Modified layered double-metal hydroxide, 10-30 parts；
Dimethicone, 6-12 parts；
The ratio of the parts by weight of modified manometer silicon dioxide, parts by weight and the modified layered double-metal hydroxide is not
Less than 8%, the ratio of parts by weight and total weight number is not more than 1.9%.
2. a kind of flame-retardant leather as described in claim 1, it is characterised in that: the modified layered double-metal hydroxide is by hard
Resin acid sodium and layered double hydroxide press (3-5): 100 parts by weight proportion modification forms.
3. a kind of flame-retardant leather as described in claim 1, it is characterised in that: the modified manometer silicon dioxide is by propyl front three
Base silane and nano silica press (12-18): 100 parts by weight proportion modification forms.
4. a kind of flame-retardant leather as described in claim 1, it is characterised in that: the dimethicone is by high viscosity dimethyl-silicon
Oil is formed with low-viscosity dimethicone, and the k value of the high viscosity dimethicone is 100-300mPas/25 DEG C, institute
The k value for stating low-viscosity dimethicone is no more than 50mPas/25 DEG C, the parts by weight of the low-viscosity dimethicone
It is 2-3 parts.
5. a kind of preparation method of flame-retardant leather characterized by comprising
The preparation of S1, surface layer:
Take 80-100 parts of organic silica gel, 8-10 parts of curing agent, it is modified layered double-metal hydroxide 10-30 parts be mixed to form it is primary
Slurry；
4-9 parts of the high viscosity dimethicone for being 100-300mPas/25 DEG C with k value adjusts a slurry viscosity
To 100000~120000mPas/25 DEG C, secondary slurry is formed；
It takes a certain amount of modified manometer silicon dioxide to be mixed into the secondary slurry, is sufficiently stirred to form slurry three times, it is described
The parts by weight of modified manometer silicon dioxide and the ratio of the parts by weight of the modified layered double-metal hydroxide are not less than
8%, the parts by weight of the modified manometer silicon dioxide and the ratio of total weight number are not more than 1.9%；
The slurry three times is coated in release paper/film surface, coating thickness 0.1mm inputs thereafter multisection type temperature difference baking oven
In, the multisection type temperature difference baking oven successively has one 110 DEG C of low-temperature space, one 120 DEG C of middle warm area and one 130 DEG C of high temperature
Area, film toast 1min in the low-temperature space, toast 2min in the middle warm area；
Low-viscosity dimethicone by 2-3 parts of k value no more than 50mPas/25 DEG C is coated uniformly on by the medium temperature
On the film of area's output, the high-temperature region baking 1min is inputted thereafter, obtains surface layer；
S2, the production for being sequentially completed intermediate binder layer, bottom and base cloth layer.
6. a kind of preparation method of flame-retardant leather as claimed in claim 5, which is characterized in that the modified layered bimetallic hydrogen
Oxide is prepared in the following manner:
Odium stearate and layered double hydroxide are pressed (3-5): reaction kettle is added in 100 parts by weight proportion, in 75-85
DEG C temperature range stirs 1 hour, and ultrasonic disperse is primary within during which interval 10-15 minutes, 3-5 minutes each.
7. a kind of preparation method of flame-retardant leather as claimed in claim 5, which is characterized in that the modified manometer silicon dioxide
It prepares in the following manner:
A certain amount of oxypropyl trimethyl silane is added in hydrolyzate and hydrolyzes 30 ± 5min at a temperature of 70-75 DEG C, is hydrolyzed
Reactant；A certain amount of dehydrated alcohol is added in a certain amount of nano silica, ultrasonic disperse 10-15min is dispersed
Liquid；Hydrolysis reactant and dispersion liquid are warming up to 80-85 DEG C in a kettle, and are cooled to room temperature after constant temperature stirring 4H, is obtained
Coolant liquid；Coolant liquid is centrifuged, is dried to constant humidity, modified manometer silicon dioxide is obtained；
The hydrolyzate by volume fraction greater than 75% ethyl alcohol and concentration be 0.1mol/L hydrochloric acid by 1:1 volume prepare and
At；
Each material adding proportion is as follows:
8. a kind of application of flame-retardant leather as described in claim 1, it is characterised in that: be applied to furniture, house ornamentation and craftwork.
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| CN110802893A (en) * | 2019-11-12 | 2020-02-18 | 鑫双利(惠州)新材料科技有限公司 | Easy-to-clean flame-retardant leather, preparation method and application |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102492172A (en) * | 2011-12-08 | 2012-06-13 | 山东春潮色母料有限公司 | Preparation method and application of nanometer organic-layered composite metal hydroxide |
| CN104652137A (en) * | 2015-03-13 | 2015-05-27 | 厦门信得利投资发展有限公司 | Preparation method of environment-friendly silica gel synthetic leather |
| CN107142745A (en) * | 2017-06-03 | 2017-09-08 | 东莞市良展有机硅科技有限公司 | High abrasion silica gel synthetic leather and preparation method thereof |
| CN208247663U (en) * | 2018-05-21 | 2018-12-18 | 杭州湘隽阻燃科技有限公司 | A kind of automobile interior flame-retardant leather composite material |
| CN109056349A (en) * | 2018-09-03 | 2018-12-21 | 江苏纳恩新材料有限公司 | Half silicon synthetic leather of one kind and preparation method thereof |
-
2019
- 2019-04-04 CN CN201910271636.2A patent/CN109914117B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102492172A (en) * | 2011-12-08 | 2012-06-13 | 山东春潮色母料有限公司 | Preparation method and application of nanometer organic-layered composite metal hydroxide |
| CN104652137A (en) * | 2015-03-13 | 2015-05-27 | 厦门信得利投资发展有限公司 | Preparation method of environment-friendly silica gel synthetic leather |
| CN107142745A (en) * | 2017-06-03 | 2017-09-08 | 东莞市良展有机硅科技有限公司 | High abrasion silica gel synthetic leather and preparation method thereof |
| CN208247663U (en) * | 2018-05-21 | 2018-12-18 | 杭州湘隽阻燃科技有限公司 | A kind of automobile interior flame-retardant leather composite material |
| CN109056349A (en) * | 2018-09-03 | 2018-12-21 | 江苏纳恩新材料有限公司 | Half silicon synthetic leather of one kind and preparation method thereof |
Non-Patent Citations (3)
| Title |
|---|
| 位建华等: "层状氢氧化物阻燃剂", 《塑料工业》 * |
| 强涛涛: "《合成革化学品》", 31 July 2016, 中国轻工业出版社 * |
| 晨光化工研究院有机硅编写组: "《有机硅单体及聚合物》", 31 December 1994, 化学工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110802893A (en) * | 2019-11-12 | 2020-02-18 | 鑫双利(惠州)新材料科技有限公司 | Easy-to-clean flame-retardant leather, preparation method and application |
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