CN110003660A - A kind of Terahertz material silica gel composite and preparation method thereof - Google Patents
A kind of Terahertz material silica gel composite and preparation method thereof Download PDFInfo
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- 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
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Abstract
The invention discloses a kind of Terahertz material silica gel composites, are made of following components according to parts by weight: 80 ~ 100 parts of silica gel main material, 5 ~ 10 parts of UV resistant agent, 4 ~ 9 parts of Terahertz mineral powder, 2 ~ 5 parts of magnetic graphene, hollow 8 ~ 12 parts of porous carbon nanometer micro ball, 2 ~ 5 parts of negative ion powder, 5 ~ 9 parts of bamboo charcoal powder, 1 ~ 4 part of bacteriostatic agent, 8 ~ 23 parts of white carbon black, 10 ~ 20 parts of methacrylic acid, 5 ~ 10 parts of polylactic acid, 5 ~ 10 parts of crosslinking agent, 0.5 ~ 2.5 part of benzoyl peroxide, 0.5 ~ 1.2 part of KH-550 silane coupling agent, 1 ~ 3 part of polyvinyl alcohol, 0 ~ 2 part of pigment.Also disclose preparation method.Terahertz material silica gel composite good permeability provided by the invention, transparency are high, glossiness is good, have good mechanical performance, uvioresistant and biocidal property, can stablize chronic exposure THz wave, soft so smooth, can directly contact skin.
Description
Technical field
The present invention relates to field of material technology, and in particular to a kind of Terahertz material silica gel composite and preparation method thereof.
Background technique
Silica gel material is nonirritant to tissue, non-toxic, anti-without allergy due to good biocompatibility
It answers, there is good physicochemical property, be a kind of quite stable inert substance, and energy high temperature resistant low temperature, machine-shaping facilitate,
Often by the raw materials as manufacture various lives and health treatment, but there are the mechanicalnesses such as tensile strength and tearing toughness for silica gel
Can be poor, it is easy to aging under ultraviolet light long-term irradiation, be hardened, become fragile, does not have the shortcomings that antibiotic property, in addition, solid silicone is transparent
Degree is not high, matt, and the gloss of existing silica gel product is that later period high polish manufactures, and higher cost limits its application
Range.
Terahertz can be emitted by having products, these products such as Terahertz Ceramic Balls, haydite, ceramic powder currently on the market
Wave has and promotes blood circulation of human body, eliminates fatigue, and salubrious health-care efficacy also there is sterilization to disappear according to application field
The effect of poison and energy-saving and emission-reduction.Chinese patent literature CN106630971 discloses a kind of Terahertz activity haydite and its preparation side
Method, Terahertz activity haydite is made of natural minerals, animals and plants material, additive and MC active water for raw material, by above-mentioned raw materials
It is sized mixing with MC active water, is handled through THz wave, then through high-temperature calcination at above-mentioned haydite, hair can be stablized by surveying this active haydite
Ejected wave is 4 ~ 16 μm long, and frequency is the THz wave of 0.5 ~ 10.0 THz, and normal emittance is up to 85% or more.There are components used for it
It is many kinds of, it is expensive hard to find, calcination temperature 1100 DEG C or more, the high requirements on the equipment, energy consumption is high the shortcomings that, in addition, haydite without
Method directly uses, its actual efficacy can only be caused to weaken significantly as the raw materials for production of various active waters.Chinese patent literature
CN109330304 discloses a kind of Terahertz silica gel material and neck pillow, including Terahertz powder and silica gel material, and preparation is simple, benefit
It is promoted blood circulation with the radiation effects of Terahertz powder, alleviates neck fatigue.Although ingredient type is less, preparation method is simple,
It can directly use, but directly silica gel main material is added in Terahertz powder by it, mechanical property and soft right property to silica gel have larger
It influences, wearability and degree of comfort decreased, and of long duration easy to change, is not suitable for directly using as personal material.
Summary of the invention
For the deficiency of existing silica gel material, the present invention provides a kind of Terahertz material silica gel composite, the material gas permeables
Property it is good, transparency is high, glossiness is good, have good mechanical performance, uvioresistant and biocidal property, chronic exposure can be stablized too
Hertz wave can directly contact skin and preparation method is simple, can be mass.
The purpose of the present invention is achieved through the following technical solutions:
A kind of Terahertz material silica gel composite, is made of following components according to parts by weight: 80 ~ 100 parts of silica gel main material, anti-purple
5 ~ 10 parts of outside line agent, 4 ~ 9 parts of Terahertz mineral powder, 2 ~ 5 parts of magnetic graphene, hollow 8 ~ 12 parts of porous carbon nanometer micro ball, bear from
2 ~ 5 parts of sub- powder, 5 ~ 9 parts of bamboo charcoal powder, 1 ~ 4 part of bacteriostatic agent, 8 ~ 23 parts of white carbon black, 10 ~ 20 parts of methacrylic acid, polylactic acid 5 ~ 10
Part, 5 ~ 10 parts of crosslinking agent, 0.5 ~ 2.5 part of benzoyl peroxide, 0.5 ~ 1.2 part of KH-550 silane coupling agent, polyvinyl alcohol 1 ~ 3
Part, 0 ~ 2 part of pigment.
Further, the Terahertz mineral powder is the medical stone, orthoclase, stone needle, Kweiyang that can radiate THz wave
One or more of stone, allophane, limonite, tourmaline, germanium ore.
Further, the preparation method of the magnetic graphene is that graphite oxide is added to ultrasound removing in ethylene glycol,
Obtain graphene oxide dispersion, ferric chloride hexahydrate be then added, continue after stirring and dissolving stir 2 h, add sodium acetate,
Polyethylene glycol stirs 0.5 h, and 200 DEG C of 16 h of reaction are filtered under diminished pressure, and uses secondary distilled water and ethanol washing respectively, and 50 DEG C true
Sky is drying to obtain.
Further, the preparation method of the hollow porous carbon nanometer micro ball is using nanometer calcium carbonate as template, in its table
Face carries out dopamine self assembly, and polymerization obtains the nanometer calcium carbonate of poly-dopamine cladding under normal temperature condition, and then high-temperature calcination obtains
To hollow porous carbon nanometer micro ball.
Further, 50 ~ 200 nm of particle size range of bamboo charcoal powder used.
Further, the crosslinking agent is divinylbenzene or methacrylic acid glycol ester.
Further, the mass fraction of the KH-550 silane coupling agent is 2.5%.
A kind of preparation method of Terahertz material silica gel composite, comprising the following steps:
Step 1: weighing: proportion weighs used component in parts by weight；
Step 2: pretreatment: by KH-550 silane coupling agent with dilution dilution agent after, be added Terahertz powder, magnetic graphene, in
Empty porous carbon nanometer micro ball, vibrates 1 h in magnetic force vibrating machine, filters, and spontaneously dries, obtains conjugated material；
Step 3: molten mixture: methacrylic acid, polylactic acid, crosslinking agent being warming up to 175 DEG C of meltings after mixing, obtained
Molten mixture；
Step 4: being kneaded: silica gel main material being added in open mill, conjugated material, negative ion powder, bamboo charcoal powder, bacteriostatic agent, white is added
Carbon black, KH-550 silane coupling agent, pigment are kneaded 2 ~ 3 min, are slowly added polyvinyl alcohol, continue 2 ~ 3 min of mixing；It is added
Benzoyl peroxide is added after being kneaded uniformly in molten mixture made from step 3, is kneaded 20 ~ 30 min to get Terahertz silicon
Glue composite material, further production obtains product；
Step 5: surface treatment: product made from step 4 being placed in UV ozone cleaning machine cavity, is irradiated after the completion of preheating
20 min take out after the completion of to be shown.
Further, melting temperature is 110 ~ 160 DEG C in step 4.
Terahertz mineral powder used in the present invention the preparation method comprises the following steps: will radiate the medical stone of THz wave, orthoclase,
It is 50 nm particle below that stone needle, Kweiyang stone, allophane, limonite, tourmaline, germanium ore mineral raw material, which are ground into partial size,.
Hollow porous carbon nanometer micro ball used in the present invention, using nanometer calcium carbonate as template, poly-dopamine is precursor, calcium carbonate
The carbon dioxide gas that pyrolytic generates punctures carbon precursor poly-dopamine shell, has efficient hole expansion function, thus in being made
Empty porous carbon nanometer micro ball, has the characteristics that light, stability is good, due to its hollow structure, each hole is penetrating, and gas is made to circulate
Faster, accelerated heat is conducted, therefore thermal coefficient also with higher.
Magnetic field has various biological effects, including can reduce blood viscosity, improves microcirculation, anti-oxidant, promotes thin
Born of the same parents' differentiation etc. is not easy to assemble, to make by graphene-supported magnetic iron oxide so that magnetic iron oxide distribution is more uniform
Distribution of Magnetic Field is uniform, the THz wave that can be radiated with Terahertz mineral powder cooperate with to enhance health-care effect.
The present invention uses KH-550 silane coupling agent to Terahertz powder, magnetic graphene, hollow porous carbon nanometer micro ball first
It is pre-processed, it can be made to form interface transition layer between rubber compound, so that this three is evenly dispersed in rubber compound,
KH-550 silane coupling agent significantly improves the compatibility and chemical reactivity of this three and rubber compound, and it is good with matrix to assign it
Interfacial adhesion, by the optimization to KH-550 silane coupling agent mass fraction concentration, so that coupling thickness is suitable, resistance is most
It is low.
Polylactic acid has the advantages that good biological degradability, good biocompatibility, glossiness are good, the transparency is good, good hand touch, this
Invention improves the transparency and glossiness of silica gel using polylactic acid, while adding methacrylic acid and crosslinking agent, after being melted
It is kneaded uniformly with silica gel main material and remaining component, makes each component in rubber compound system as dispersing agent by addition polyvinyl alcohol
In be uniformly distributed, due to polyvinyl alcohol have high transparency, avoid use while improving silica gel material slickness
Hydroxy silicon oil influences the problem of material transparent is spent, and magnetic graphene, hollow porous carbon nanometer micro ball, bamboo charcoal powder, white carbon black can
Reinforcing effect is played with the intermolecular formation three-dimensional network cross-linked structure of silica gel, so that silica gel material has higher elongation rate of tensile failure
And tearing strength, benzoyl peroxide is finally added, equally distributed each component can be made to react with full cross-linked between sizing material,
To improve the mechanical performance of Terahertz material silica gel composite.
By the present invention in that being surface-treated with UV ozone cleaning machine to Terahertz material silica gel composite obtained, lead to
The synergistic oxidation for crossing ultraviolet light and ozone acts on the dirty substance that can remove silica gel material surface, moreover it is possible to further promote terahertz
The hereby close ordered arrangement of material silica gel composite surface molecular, so that the feel that silica gel material has pro-skin smooth.
Terahertz material silica gel composite provided by the invention is light, and light transmittance 91%, glossiness is good, can put steadily in the long term
6 ~ 28 μm of THz wave is penetrated, the normal emittance of THz wave is greater than 90%, and compression strength is greater than 9 MPa, and breaking strength is big
In 20 MPa, UPF value is greater than 60, air permeable waterproof, bacteria mildew-proof, and pro-skin is smooth.
Compared with the prior art, the invention has the following beneficial effects:
(1) Terahertz silica gel material provided by the invention, by by magnetic graphene and hollow porous carbon nanometer micro ball and naturally
The mixing of Terahertz powder made from mineral uses mass fraction even for 2.5% KH550 silane by a series of screening and optimization
Connection agent pre-processes Terahertz powder, magnetic graphene, hollow porous carbon nanometer micro ball, can improve three and rubber compound
Compatibility, and not will cause THz wave decrease, to substantially increase the health-care efficacy of silica gel material；
(2) polylactic acid used in the present invention and methacrylic acid pass through mixed with silica gel main material and remaining each component in the molten state
It closes, can be improved the compatibility of polylactic acid, methacrylic acid and silica gel main material under the action of polyethylene of dispersing agent alcohol, promote simultaneously
It is uniformly distributed into remaining each component, further increases the mechanical performance of Terahertz material silica gel composite；Bamboo charcoal powder used can be with
Anion and bacteriostatic agent collaboration enhancing bactericidal and bacteriostatic effect, moreover it is possible to which the gas permeability for increasing Terahertz material silica gel composite avoids handing over
Join it is overstocked cause Terahertz material silica gel composite gas permeability decline；
(3) Terahertz silica gel material light transmittance provided by the invention is high, glossiness is good, soft right property is good, pro-skin is smooth, can directly connect
Touching skin and tissue, the THz wave that Terahertz mineral powder is radiated do not weaken, and are different from existing Terahertz health product only
Using the fuel factor of THz wave, other health-care efficacies of THz wave can be given full play to, added negative ion powder can
Anion is discharged, has effects that purify air, moreover it is possible to cooperate with the effect of performance bactericidal with added bacteriostatic agent, and too
Hertz wave collaboration, which plays, to promote blood circulation, and relieves fatigue, the health-care efficacy of strengthen immunity, can be applied to directly contact skin
Various apparel products in；
(4) Terahertz material silica gel composite preparation method provided by the invention, can be produced using General Purpose Rubber production equipment, tool
There is the characteristics of simple process, low energy consumption, favorable reproducibility, can be realized industrialization production.
Specific embodiment
Further to illustrate technological means and its effect adopted by the present invention, carried out below in conjunction with specific embodiment detailed
Thin description.
Embodiment 1
A kind of Terahertz material silica gel composite, is made of following components according to parts by weight: 80 parts of silica gel main material, uvioresistant
5 parts of agent, 4 parts of Terahertz mineral powder, 2 parts of magnetic graphene, hollow 8 parts of porous carbon nanometer micro ball, 2 parts of negative ion powder, bamboo charcoal powder 5
Part, 1 part of bacteriostatic agent, 8 parts of white carbon black, 10 parts of methacrylic acid, 5 parts of polylactic acid, 5 parts of crosslinking agent, 0.5 part of benzoyl peroxide,
0.5 part of KH-550 silane coupling agent, 1 part of polyvinyl alcohol, 0 part of pigment.
Further, the Terahertz powder is medical stone, orthoclase, stone needle, the Kweiyang stone, water that can radiate THz wave
One or more of allophane, limonite, tourmaline, germanium ore.
Further, the preparation method of the magnetic graphene is that graphite oxide is added to ultrasound removing in ethylene glycol,
Obtain graphene oxide dispersion, ferric chloride hexahydrate be then added, continue after stirring and dissolving stir 2 h, add sodium acetate,
Polyethylene glycol stirs 0.5 h, and 200 DEG C of 16 h of reaction are filtered under diminished pressure, and uses secondary distilled water and ethanol washing respectively, and 50 DEG C true
Sky is drying to obtain.
Further, the preparation method of the hollow porous carbon nanometer micro ball is using nanometer calcium carbonate as template, in its table
Face carries out dopamine self assembly, and polymerization obtains the nanometer calcium carbonate of poly-dopamine cladding under normal temperature condition, and then high-temperature calcination obtains
To hollow porous carbon nanometer micro ball.
Further, 50 ~ 200 nm of particle size range of bamboo charcoal powder used.
Further, the crosslinking agent is divinylbenzene or methacrylic acid glycol ester.
Further, the mass fraction of the KH-550 silane coupling agent is 2.5%.
A kind of preparation method of Terahertz material silica gel composite, comprising the following steps:
Step 1: weighing: proportion weighs used component in parts by weight；
Step 2: pretreatment: by KH-550 silane coupling agent with dilution dilution agent after, be added Terahertz powder, magnetic graphene, in
Empty porous carbon nanometer micro ball, vibrates 1 h in magnetic force vibrating machine, filters, and spontaneously dries, obtains conjugated material；
Step 3: molten mixture: methacrylic acid, polylactic acid, crosslinking agent being warming up to 175 DEG C of meltings after mixing, obtained
Molten mixture；
Step 4: being kneaded: silica gel main material being added in open mill, conjugated material, negative ion powder, bamboo charcoal powder, bacteriostatic agent, white is added
Carbon black, KH-550 silane coupling agent, pigment are kneaded 2 ~ 3 min, are slowly added polyvinyl alcohol, continue 2 ~ 3 min of mixing；It is added
Molten mixture made from step 3 is added benzoyl peroxide after being kneaded uniformly, is kneaded 20 ~ 30 min, and rubber compound is added to
Calender, by adjusting the thickness and width of calender adjustment Terahertz material silica gel composite；
Step 5: surface treatment: it is empty that Terahertz material silica gel composite coiled material made from step 4 being placed in UV ozone cleaning machine
It is intracavitary, 20 min are irradiated after the completion of preheating, are taken out after the completion of to be shown.
Further, melting temperature is 110 ~ 160 DEG C in step 4.
Embodiment 2
A kind of Terahertz material silica gel composite, is made of following components according to parts by weight: 90 parts of silica gel main material, uvioresistant
8 parts of agent, 6 parts of Terahertz mineral powder, 3 parts of magnetic graphene, hollow 10 parts of porous carbon nanometer micro ball, 3 parts of negative ion powder, bamboo charcoal powder
7 parts, 3 parts of bacteriostatic agent, 4 parts of hydroxy silicon oil, 8 parts of white carbon black, 10 parts of methacrylic acid, 5 parts of polylactic acid, 5 parts of crosslinking agent, peroxidating
0.5 part of benzoyl, 0.5 part of KH-550 silane coupling agent, 1 part of polyvinyl alcohol, 1 part of pigment.
Further, the Terahertz powder is medical stone, orthoclase, stone needle, the Kweiyang stone, water that can radiate THz wave
One or more of allophane, limonite, tourmaline, germanium ore.
Further, the preparation method of the magnetic graphene is that graphite oxide is added to ultrasound removing in ethylene glycol,
Obtain graphene oxide dispersion, ferric chloride hexahydrate be then added, continue after stirring and dissolving stir 2 h, add sodium acetate,
Polyethylene glycol stirs 0.5 h, and 200 DEG C of 16 h of reaction are filtered under diminished pressure, and uses secondary distilled water and ethanol washing respectively, and 50 DEG C true
Sky is drying to obtain.
Further, the preparation method of the hollow porous carbon nanometer micro ball is using nanometer calcium carbonate as template, in its table
Face carries out dopamine self assembly, and polymerization obtains the nanometer calcium carbonate of poly-dopamine cladding under normal temperature condition, and then high-temperature calcination obtains
To hollow porous carbon nanometer micro ball.
Further, 50 ~ 200 nm of particle size range of bamboo charcoal powder used.
Further, the crosslinking agent is divinylbenzene or methacrylic acid glycol ester.
Further, the mass fraction of the KH-550 silane coupling agent is 2.5%.
A kind of preparation method of Terahertz material silica gel composite, comprising the following steps:
Step 1: weighing: proportion weighs used component in parts by weight；
Step 2: pretreatment: by KH-550 silane coupling agent with dilution dilution agent after, be added Terahertz powder, magnetic graphene, in
Empty porous carbon nanometer micro ball, vibrates 1 h in magnetic force vibrating machine, filters, and spontaneously dries, obtains conjugated material；
Step 3: molten mixture: methacrylic acid, polylactic acid, crosslinking agent being warming up to 175 DEG C of meltings after mixing, obtained
Molten mixture；
Step 4: being kneaded: silica gel main material being added in open mill, conjugated material, negative ion powder, bamboo charcoal powder, bacteriostatic agent, white is added
Carbon black, KH-550 silane coupling agent, pigment are kneaded 2 ~ 3 min, are slowly added polyvinyl alcohol, continue 2 ~ 3 min of mixing；It is added
Benzoyl peroxide is added after being kneaded uniformly in molten mixture made from step 3, is kneaded 20 ~ 30 min to get Terahertz silicon
Glue composite material, further compression molding obtains product；
Step 5: surface treatment: product made from step 4 being placed in UV ozone cleaning machine cavity, is irradiated after the completion of preheating
20 min take out after the completion of to be shown.
Further, melting temperature is 110 ~ 160 DEG C in step 4.
Embodiment 3
A kind of Terahertz material silica gel composite, is made of following components according to parts by weight: 100 parts of silica gel main material, uvioresistant
10 parts of line agent, 9 parts of Terahertz mineral powder, 5 parts of magnetic graphene, hollow 12 parts of porous carbon nanometer micro ball, 5 parts of negative ion powder, bamboo
9 parts of powdered carbon, 4 parts of bacteriostatic agent, 6 parts of hydroxy silicon oil, 23 parts of white carbon black, 20 parts of methacrylic acid, 10 parts of polylactic acid, crosslinking agent 10
Part, 2.5 parts of benzoyl peroxide, 1.2 parts of KH-550 silane coupling agent, 3 parts of polyvinyl alcohol, 2 parts of pigment.
Further, the Terahertz powder is medical stone, orthoclase, stone needle, the Kweiyang stone, water that can radiate THz wave
One or more of allophane, limonite, tourmaline, germanium ore.
Further, the preparation method of the magnetic graphene is that graphite oxide is added to ultrasound removing in ethylene glycol,
Obtain graphene oxide dispersion, ferric chloride hexahydrate be then added, continue after stirring and dissolving stir 2 h, add sodium acetate,
Polyethylene glycol stirs 0.5 h, and 200 DEG C of 16 h of reaction are filtered under diminished pressure, and uses secondary distilled water and ethanol washing respectively, and 50 DEG C true
Sky is drying to obtain.
Further, the preparation method of the hollow porous carbon nanometer micro ball is using nanometer calcium carbonate as template, in its table
Face carries out dopamine self assembly, and polymerization obtains the nanometer calcium carbonate of poly-dopamine cladding under normal temperature condition, and then high-temperature calcination obtains
To hollow porous carbon nanometer micro ball.
Further, 50 ~ 200 nm of particle size range of bamboo charcoal powder used.
Further, the crosslinking agent is divinylbenzene or methacrylic acid glycol ester.
Further, the mass fraction of the KH-550 silane coupling agent is 2.5%.
A kind of preparation method of Terahertz material silica gel composite, comprising the following steps:
Step 1: weighing: proportion weighs used component in parts by weight；
Step 2: pretreatment: by KH-550 silane coupling agent with dilution dilution agent after, be added Terahertz powder, magnetic graphene, in
Empty porous carbon nanometer micro ball, vibrates 1 h in magnetic force vibrating machine, filters, and spontaneously dries, obtains conjugated material；
Step 3: molten mixture: methacrylic acid, polylactic acid, crosslinking agent being warming up to 175 DEG C of meltings after mixing, obtained
Molten mixture；
Step 4: being kneaded: silica gel main material being added in open mill, conjugated material, negative ion powder, bamboo charcoal powder, bacteriostatic agent, white is added
Carbon black, KH-550 silane coupling agent, pigment are kneaded 2 ~ 3 min, are slowly added polyvinyl alcohol, continue 2 ~ 3 min of mixing；It is added
Benzoyl peroxide is added after being kneaded uniformly in molten mixture made from step 3, is kneaded 20 ~ 30 min to get Terahertz silicon
Glue composite material, further injection moulding obtains product；
Step 5: surface treatment: product made from step 4 being placed in UV ozone cleaning machine cavity, is irradiated after the completion of preheating
20 min take out after the completion of to be shown.
Further, melting temperature is 110 ~ 160 DEG C in step 4.
Comparative example 1
In addition to without magnetic graphene, remaining operation is the same as embodiment 2.
Comparative example 2
In addition to substituting magnetic graphene with graphene, remaining operation is the same as embodiment 2.
Comparative example 3
In addition to without hollow porous carbon nanometer micro ball, remaining operation is the same as embodiment 2.
Comparative example 4
In addition to substituting hollow porous carbon nanometer micro ball with carbon nanometer micro ball, remaining operation is the same as embodiment 2.
Comparative example 5
In addition to without KH-550 silane coupling agent, remaining operation is the same as embodiment 2.
Comparative example 6
In addition to substituting KH-550 silane coupling agent with KH-570 silane coupling agent, remaining operation is the same as embodiment 2.
Comparative example 7
In addition to KH-550 silane coupling agent mass fraction used is 1%, remaining operation is the same as embodiment 2.
Comparative example 8
In addition to KH-550 silane coupling agent mass fraction used is 5%, remaining operation is the same as embodiment 2.
Comparative example 9
In addition to without polyvinyl alcohol, remaining operation is the same as embodiment 2.
Comparative example 10
In addition to without bamboo charcoal powder, remaining operation is the same as embodiment 2.
Comparative example 11
In addition to without crosslinking agent, remaining operation is the same as embodiment 2.
Comparative example 12
Outside without step 6, i.e., not being surface-treated, remaining operation is the same as embodiment 2.
Performance test
Following performance test is carried out to embodiment 1 ~ 3 and 1 ~ 12 gained Terahertz material silica gel composite of comparative example respectively, as a result such as
Shown in the following table 1:
1 ~ 12 gained composite property test result of 1 embodiment 1 ~ 3 of table and comparative example
As known from Table 1, Terahertz material silica gel composite good permeability made from the embodiment of the present invention, light transmittance are greater than 85%, resistance to compression
Intensity is greater than 8 MPa, and breaking strength is greater than 20 MPa, and elongation at break is greater than 74%, has good mechanical and mechanical property,
6 ~ 28 μm of radiation of THz wave can be stablized, normal emittance is greater than 90%, and bacterium rate is smooth to spend greater than 97%, breathes freely anti-
Water, dress are experienced.Embodiment sample is placed in the daily direct sunlight time greater than 4 hours, the interior circulated naturally of air,
It is soft glutinous smooth that feel is detected after 1 year again, THz wave is without decrease；Comparative example 1 is free of magnetic graphene, and silica gel material resists
Compressive Strength, breaking strength and elongation at break are declined, and show that used magnetic graphene of the present invention is improving silica gel material
Mechanical properties and remaining component, which exist, to act synergistically, and Terahertz wave-length coverage broadens compared with embodiment, normal emittance decline,
The graphene of comparative example 2 substitutes magnetic graphene Terahertz wave-length coverage and is less than comparative example 1, and normal emittance fall is also small
In comparative example 1, this may be that the magnetic field as caused by graphene in magnetic graphene and magnetic iron oxide can be to Terahertz
The THz wave of powder transmitting plays positive effect；Comparative example 3 is free of hollow porous carbon nanometer micro ball, the change of properties of silica gel material
It is similar to comparative example 1, show that hollow porous carbon nanometer micro ball used in the present invention is improving silica gel material mechanical properties and its
There is synergistic effect in remaining component, comparative example 4 substitutes hollow porous carbon nanometer micro ball with carbon nanometer micro ball, and Terahertz wave-length coverage is small
In comparative example 3, for normal emittance fall again smaller than comparative example 3, this may be since hollow porous carbon nanometer micro ball can
Play the role of positive effect to the THz wave of Terahertz powder transmitting, and carbon nanometer micro ball does not have this；Comparative example 5 is free of KH-
550 silane coupling agents, Terahertz powder, magnetic graphene, porous carbon nanometer micro ball each self-dispersing, silica gel material in silica gel material
Mechanical performance and embodiment it is close, but due to each self-dispersing of this three, the positive effect to Terahertz cannot be played so that
Terahertz wave-length coverage broadens compared with embodiment, normal emittance decline, and comparative example 6 ~ 8 is to silane coupling agent type and quality point
The screening verification of Particle density is tested, and shows that the type of silane coupling agent and concentration emit silica gel material the wavelength model of THz wave
It encloses closely related with normal emittance；Comparative example 9 is free of polyvinyl alcohol, and the uniformity of each material dispersion is not as good as real in mixing process
Example is applied, so that silica gel material mechanical performance obtained declines, bacteriostasis rate decline, distribution of the Terahertz reinforcing material in rubber compound
Unevenly but also Terahertz wave-length coverage broadens, normal emittance decline；Comparative example 10 is free of bamboo charcoal powder, to permeability
Significant impact is caused, gas permeability is substantially reduced, while bacteriostasis rate is significantly reduced；Comparative example 11 is free of crosslinking agent, silica gel material
Mechanical performance and slickness be substantially reduced compared with embodiment；Comparative example 12 is free of step 6, i.e., is not surface-treated, silica gel material
Material remained on surface has dirty substance, and molecules align is loosely unordered, causes the smooth degree of silica gel material not as good as embodiment.
To sum up, Terahertz material silica gel composite provided by the invention, light, translucency and good permeability, glossiness is good, outside
Fineness is seen, there is good mechanical performance, 6 ~ 28 μm of THz wave, the normal direction hair of THz wave can be radiated steadily in the long term
Rate is penetrated greater than 90%, performance is cooperateed with to promote blood circulation, relieve fatigue, strengthen immunity with anion and magnetic graphene magnetic field
Health-care efficacy, preparation method is simple, bacteria mildew-proof, and soft right property is good, and feel is smooth, can be applied to directly contact skin it is each
In kind apparel product.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, ability
Other modifications or equivalent replacement that domain those of ordinary skill makes technical solution of the present invention, without departing from skill of the present invention
The spirit and scope of art scheme, are intended to be within the scope of the claims of the invention.
Claims (9)
1. a kind of Terahertz material silica gel composite, which is characterized in that be made of following components according to parts by weight: silica gel main material
80 ~ 100 parts, 5 ~ 10 parts of UV resistant agent, 4 ~ 9 parts of Terahertz mineral powder, 2 ~ 5 parts of magnetic graphene, hollow porous carbon nanometer it is micro-
8 ~ 12 parts of ball, 2 ~ 5 parts of negative ion powder, 5 ~ 9 parts of bamboo charcoal powder, 1 ~ 4 part of bacteriostatic agent, 8 ~ 23 parts of white carbon black, methacrylic acid 10 ~ 20
Part, 5 ~ 10 parts of polylactic acid, 5 ~ 10 parts of crosslinking agent, 0.5 ~ 2.5 part of benzoyl peroxide, 0.5 ~ 1.2 part of KH-550 silane coupling agent,
1 ~ 3 part of polyvinyl alcohol, 0 ~ 2 part of pigment.
2. a kind of Terahertz material silica gel composite according to claim 1, which is characterized in that the Terahertz powder is can
Radiate one of the medical stone of THz wave, orthoclase, stone needle, Kweiyang stone, allophane, limonite, tourmaline, germanium ore
Or it is several.
3. a kind of Terahertz material silica gel composite according to claim 1, which is characterized in that the system of the magnetic graphene
Preparation Method is that graphite oxide is added to ultrasound removing in ethylene glycol, obtains graphene oxide dispersion, and six hydrations are then added
Iron chloride continues after stirring and dissolving to stir 2 h, adds sodium acetate, polyethylene glycol, stirs 0.5 h, 200 DEG C of 16 h of reaction,
It is filtered under diminished pressure, uses secondary distilled water and ethanol washing respectively, 50 DEG C are dried in vacuo to obtain the final product.
4. a kind of Terahertz material silica gel composite according to claim 1, which is characterized in that the hollow porous carbon nanometer
The preparation method of microballoon is to carry out dopamine self assembly using nanometer calcium carbonate as template on its surface, polymerize under normal temperature condition
The nanometer calcium carbonate coated to poly-dopamine, then high-temperature calcination obtain hollow porous carbon nanometer micro ball.
5. a kind of Terahertz material silica gel composite according to claim 1, which is characterized in that the partial size model of bamboo charcoal powder used
Enclose 50 ~ 200 nm.
6. a kind of Terahertz material silica gel composite according to claim 1, which is characterized in that the crosslinking agent is divinyl
Benzene or methacrylic acid glycol ester.
7. a kind of Terahertz material silica gel composite according to claim 1, which is characterized in that the KH-550 is silane coupled
The mass fraction of agent is 2.5%.
8. a kind of preparation method of Terahertz material silica gel composites described in any item according to claim 1 ~ 7, which is characterized in that
The following steps are included:
Step 1: weighing: proportion weighs used component in parts by weight；
Step 2: pretreatment: by KH-550 silane coupling agent with dilution dilution agent after, be added Terahertz powder, magnetic graphene, in
Empty porous carbon nanometer micro ball, vibrates 1 h in magnetic force vibrating machine, filters, and spontaneously dries, obtains conjugated material；
Step 3: molten mixture: methacrylic acid, polylactic acid, crosslinking agent being warming up to 175 DEG C of meltings after mixing, obtained
Molten mixture；
Step 4: being kneaded: silica gel main material being added in open mill, conjugated material, negative ion powder, bamboo charcoal powder, bacteriostatic agent, white is added
Carbon black, KH-550 silane coupling agent, pigment are kneaded 2 ~ 3 min, are slowly added polyvinyl alcohol, continue 2 ~ 3 min of mixing；It is added
Benzoyl peroxide is added after being kneaded uniformly in molten mixture made from step 3, is kneaded 20 ~ 30 min to get Terahertz silicon
Glue composite material, further production obtains product；
Step 5: surface treatment: Terahertz material silica gel composite made from step 4 is placed in UV ozone cleaning machine cavity,
20 min are irradiated after the completion of preheating, are taken out after the completion of to be shown.
9. the preparation method of Terahertz material silica gel composite according to claim 8, which is characterized in that be kneaded in step 4
Temperature is 110 ~ 160 DEG C.
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Application publication date: 20190712 |