CN109836801A - A kind of silica gel and thermoplastic elastomer foaming bead composite material and preparation method and application - Google Patents
A kind of silica gel and thermoplastic elastomer foaming bead composite material and preparation method and application Download PDFInfo
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- CN109836801A CN109836801A CN201910117510.XA CN201910117510A CN109836801A CN 109836801 A CN109836801 A CN 109836801A CN 201910117510 A CN201910117510 A CN 201910117510A CN 109836801 A CN109836801 A CN 109836801A
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Abstract
The invention belongs to lightweighting materials fields, more particularly to a kind of silica gel and thermoplastic elastomer foaming bead composite material and preparation method and application, the silica gel and thermoplastic elastomer foaming bead composite material are made of following raw material: 100 parts of thermoplastic elastomer foaming bead, 50-100 parts of silica gel, 1-10 parts of crosslinking agent, 0-10 parts of foaming agent, 0.1-5 parts of catalyst and 0-10 parts of filler；The resilience that the composite material has density low, excellent, high flexibility, highly resistance compressive deformation performance, high tensile can be effectively applied in footwear material, tire, bicycle seat, upholstery and/or mulching material, and preparation method is simple and easy.
Description
Technical field
The invention belongs to lightweighting materials field more particularly to a kind of silica gel and thermoplastic elastomer foaming bead composite wood
Material and its preparation method and application.
Background technique
Silica gel has excellent high temperature resistant and lower temperature resistance, excellent electrical insulating property and chemical stability, good resistance to old
The property changed, hydrophobic outstanding is moisture-proof and physiological inertia etc., and silica gel product becomes the head in the fields such as military aerospace, medical treatment, automobile, building
Material selection.Foamed silica gel product not only maintains the excellent properties of silica gel matrix, also has the characteristics that heat-insulated, sound insulation, damping, extensively
It is general to be used for the industries such as thermal transfer machinery, mechanical seal, electronic apparatus.
But silica gel in the prior art, in long-time use process, resilience and incompressible deformation performance are poor, limit
It is made in the use in the fields such as precision machinery.
Summary of the invention
In order to solve the above-mentioned technical problem the present invention, provides a kind of silica gel and thermoplastic elastomer foaming bead composite wood
Material, the resilience that this composite material has density low, excellent, high flexibility, highly resistance compressive deformation performance, high tensile can
It is effectively applied in footwear material, tire, bicycle seat, upholstery and/or mulching material, preparation method is simply easy
Row.
The technical scheme to solve the above technical problems is that a kind of silica gel and thermoplastic elastomer foaming bead are multiple
Condensation material is made of following raw material: 100 parts of thermoplastic elastomer foaming bead, 50-100 parts of silica gel, crosslinking agent 1-10
Part, 0-10 parts of foaming agent, 0.1-5 parts of catalyst and 0-10 parts of filler.
Based on the above technical solution, the present invention can also be improved as follows.
Further, the partial size of the thermoplastic elastomer foaming bead is 0.5-20mm.
When the partial size of thermoplastic elastomer foaming bead is less than 0.5mm, it is easy to appear when expanded bead is mixed with silica gel
Reunion situation causes expanded bead dispersion in final composite material uneven.When the partial size of thermoplastic elastomer foaming bead
When greater than 20mm, since the specific surface area of expanded bead is too small, when expanded bead is embedded in the surface of composite material, it is easy to lead
Composite material surface is caused uneven situation occur.
Further, the bulk density of the thermoplastic elastomer foaming bead is 20-300g/L.
When the bulk density of thermoplastic elastomer foaming bead is lower than 20g/L, due to the expansion multiplying power mistake of expanded bead
Greatly, the resilience of final composite material and incompressible deformation performance can be deteriorated.When the accumulation of thermoplastic elastomer foaming bead
When density is higher than 300g/L, the weight of obtained composite material can be laid particular stress on, and increase material cost.
Further, the thermoplastic elastomer foaming bead is thermoplastic polyurethane elastomer expanded bead, thermoplastic poly
Ester elastomer expanded bead, thermoplastic block polyetheramide elastomeric body expanded bead, hydrogenated styrene-butadiene block copolymer
Elastomer foamed bead, polypropylene foaming beads, foamed polystyrene bead, the elastomer foamed bead of ethylene-octene copolymer
With the mixture of the elastomer foamed bead one or more of ethylene-l-octane copolymer.
Thermoplastic elastomer foaming bead employed in the technical program can be directly commercially available, such as above-mentioned heat
The elastomer foamed bead of plastic polyurethane, purchased from Mei Rui new material limited liability companyF815 product gathers
Propylene expanded bead, purchased from BASF AG9255K product, foamed polystyrene bead, is shown in purchased from Taiwan
The KING of imperial chemistryF-SA, purchased from DOW Chemical9007 and ENGAGETM7367 products.In addition, also
Thermoplastic can be prepared respectively according to technical solution disclosed in patented technology CN200680009758.5 and CN201580045630.3
Property polyester elastomer expanded bead and thermoplastic block polyetheramide elastomeric body expanded bead.
Further, the silica gel is methyl vinyl silicone rubber, methyl phenyl vinyl silicone rubber, fluorine silicone rubber and ethyl
The mixture of silicon rubber one or more.
Further, the crosslinking agent is that trimethylsiloxy group blocks poly- hydrocarbyl siloxane (abbreviation Methyl Hydrogen Polysiloxane Fluid), three
Ethyl siloxy blocks poly- hydrocarbyl siloxane (abbreviation ethyl containing hydrogen silicone oil) and trihydroxy siloxy blocks the (letter of poly- hydrocarbyl siloxane
Claim hydroxyl hydrogen silicone oil) one or more of mixture.
Further, the foaming agent is N, one kind in this double sulfohydrazide of N- dinitrosopentamethylene tetramine, 4,4- oxo
Or two kinds of mixture.
Further, the catalyst is caprylate, naphthenate or ammonium class, and the filler is silica, diatomite, white
The mixtures of the one or more of carbon black, talcum powder, silica flour, aluminium oxide and titanium dioxide.
The present invention provides the preparation method of a kind of silica gel and thermoplastic elastomer foaming bead composite material, including following step
It is rapid:
(1) the elastomer foamed bead of 100 parts per weight of thermoplastic, 50-100 parts by weight silica gel, 1-10 parts by weight of crosslinking agent are taken
It is uniformly mixed and puts into mold with the filler of 0-10 parts by weight with 0-10 parts by weight of blowing agent, 0.1-5 part by weight of catalyst；
(2) 100-200 DEG C, die pressure 0.1-0.6MPa, heat-insulation pressure keeping 1-10 minutes will be warming up in mold；
(3) mold is cooled to 10-30 DEG C to get silica gel and thermoplastic elastomer foaming bead composite material is arrived.
The present invention also provides a kind of silica gel and thermoplastic elastomer foaming bead composite material in footwear material, tire, bicycle
Application in seat, upholstery and/or mulching material.
The beneficial effects of the present invention are:
(1) by introducing thermoplastic elastomer foaming bead in silica gel matrix, integrated molding, silica gel matrix and hair are realized
There is good associativity between bubble bead, while realizing that expanded bead is uniformly embedded in silica gel intrinsic silicon or surface；
(2) resilience excellent based on thermoplastic elastomer foaming bead, low density advantage, so that prepared is compound
Material has excellent resilience, incompressible deformation performance and good tensile strength.
Specific embodiment
The principles and features of the present invention are described below, and the given examples are served only to explain the present invention, is not intended to limit
Determine the scope of the present invention.
Embodiment 1
(1) by 100g thermoplastic polyurethane elastomer expanded bead, 50g methyl vinyl silicone rubber, 1g trimethyl silicane oxygen
Base blocks poly- hydrocarbyl siloxane, 10g N, N- dinitrosopentamethylene tetramine, 0.1g caprylate and 10g silica and passes through height
Mixed machine is uniformly mixed and is put into the mold of 10*10*5cm；
(2) mold temperature is warming up to 100 DEG C, mould inner pressure 0.1MPa, and heat-insulation pressure keeping 1 minute；
(3) mold is cooled to 10 DEG C to get to silica gel and thermoplastic polyurethane elastomer expanded bead composite material,
Performance test data is as shown in table 1.
Embodiment 2
(1) 100g polypropylene foaming beads, 100g methyl vinyl silicone rubber, 10g triethyl group siloxy are blocked into poly- hydrocarbon
Radical siloxane, 2g naphthenate catalyst and 5g talcum powder are uniformly mixed and are put into 10*10*5cm mold by high mixer；
(2) mold temperature being warming up to 150 DEG C, mould inner pressure is in 0.1MPa, and heat-insulation pressure keeping 5 minutes；
(3) mold is cooled to 20 DEG C to get to silica gel and the elastomer foamed bead composite material of thermoplastic polypropylene,
Performance test data is as shown in table 1.
Embodiment 3
(1) 100g foamed polystyrene bead, 80g methyl phenyl vinyl silicone rubber, 5g trihydroxy siloxy are blocked
The White Carbon black of poly- hydrocarbyl siloxane, 5gN, N- dinitrosopentamethylene tetramine, 0.1g caprylate and 10g is mixed by high mixer
Uniformly and put into the mold of 10*10*5cm；
(2) mold temperature is warming up to 100 DEG C, mould inner pressure 0.6MPa, and heat-insulation pressure keeping 1 minute；
(3) by mold be cooled to 10 DEG C to get arrive silica gel and thermoplastic polyurethane elastomer expanded bead composite material,
Its performance test data is as shown in table 1.
Embodiment 4
(1) by 100g thermoplastic block polyetheramide elastomeric body expanded bead, 50g methyl phenyl vinyl silicone rubber, 8g
The diatomite that trimethylsiloxy group blocks poly- hydrocarbyl siloxane, 3g 4,4- oxo double this sulfohydrazide, 0.1g caprylate and 10g is logical
High mixer is crossed to be uniformly mixed and put into the mold of 10*10*5cm；
(2) mold temperature is warming up to 100 DEG C, mould inner pressure is in 0.3MPa.And heat-insulation pressure keeping 5 minutes；
(3) by mold be cooled to 20 DEG C to get arrive the elastomer foamed bead of silica gel thermoplastic polyurethane composite material,
Performance test data is as shown in table 1.
Embodiment 5
(1) 100g thermoplastic polyester elastomer expanded bead, 50g ethyl silicon rubber, 8g trimethylsiloxy group are blocked poly-
The titanium dioxide of hydrocarbyl siloxane, 4g 4,4- oxo double this sulfohydrazide, 0.1g naphthenate and 2g is uniformly mixed by high mixer
And it puts into the mold of 10*10*5cm；
(2) mold temperature is warming up to 100 DEG C, mould inner pressure 0.2MPa, and heat-insulation pressure keeping 5 minutes；
(3) by mold be cooled to 20 DEG C to get arrive silica gel and thermoplastic polyester elastomer expanded bead composite material,
Performance test data is as shown in table 1.
Comparative example 1
Comparative example 1 is carried out according to the similar mode of embodiment 1, wherein not adding thermoplastic polyurethane bullet during the preparation process
Property body expanded bead, the performance test data of prepared composite material are as shown in table 1.
Comparative example 2
Comparative example 2 is carried out according to the similar mode of embodiment 2, wherein not adding polypropylene expanded pearl during the preparation process
Grain, the performance test data of prepared composite material are as shown in table 1.
Table 1
1-5 and comparative example 1 through the foregoing embodiment, from the point of view of the comparison of composite property prepared by comparative example 2, by
Thermoplastic elastomer foaming bead is introduced in silica gel matrix, not only reduces the density of composite material, and hardness is reduced and improved and produces
The flexibility of product, while the physical property of composite material is improved, especially to the resilience of composite material, compressive deformation performance
Improve significant.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of silica gel and thermoplastic elastomer foaming bead composite material, which is characterized in that be made of following raw material:
100 parts of thermoplastic elastomer foaming bead, 50-100 parts of silica gel, 1-10 parts of crosslinking agent, 0-10 parts of foaming agent, catalyst 0.1-5
Part and filler 0-10 parts.
2. a kind of silica gel and thermoplastic elastomer foaming bead composite material according to claim 1, which is characterized in that described
The partial size of thermoplastic elastomer foaming bead is 0.5-20mm.
3. a kind of silica gel and thermoplastic elastomer foaming bead composite material according to claim 1, which is characterized in that described
The bulk density of thermoplastic elastomer foaming bead is 20-300g/L.
4. a kind of any one of -3 silica gel and thermoplastic elastomer foaming bead composite material according to claim 1, feature
It is, the thermoplastic elastomer foaming bead is thermoplastic polyurethane elastomer expanded bead, thermoplastic polyester elastomer hair
It is elastomer foamed to steep bead, thermoplastic block polyetheramide elastomeric body expanded bead, hydrogenated styrene-butadiene block copolymer
Bead, polypropylene foaming beads, foamed polystyrene bead, the elastomer foamed bead of ethylene-octene copolymer and ethylene -1- are pungent
The mixture of the elastomer foamed bead one or more of alkene copolymer.
5. a kind of silica gel and thermoplastic elastomer foaming bead composite material according to claim 1, which is characterized in that described
Silica gel is that methyl vinyl silicone rubber, methyl phenyl vinyl silicone rubber, fluorine silicone rubber and ethyl silicon rubber are one or more of
Mixture.
6. a kind of silica gel and thermoplastic elastomer foaming bead composite material according to claim 1, which is characterized in that described
Crosslinking agent is that trimethylsiloxy group blocks poly- hydrocarbyl siloxane, triethyl group siloxy blocks poly- hydrocarbyl siloxane and trihydroxy silicon oxygen
Base blocks the mixture of one or more of poly- hydrocarbyl siloxane.
7. a kind of silica gel and thermoplastic elastomer foaming bead composite material according to claim 1, which is characterized in that described
Foaming agent is N, one or two kinds of mixture in this double sulfohydrazide of N- dinitrosopentamethylene tetramine, 4,4- oxo.
8. a kind of silica gel and thermoplastic elastomer foaming bead composite material according to claim 1, which is characterized in that described
Catalyst be caprylate, naphthenate or ammonium class, the filler be silica, diatomite, White Carbon black, talcum powder, silica flour,
One or more of mixtures of aluminium oxide and titanium dioxide.
9. the preparation method of a kind of silica gel and thermoplastic elastomer foaming bead composite material, which is characterized in that including following step
It is rapid:
(1) the elastomer foamed bead of 100 parts per weight of thermoplastic, 50-100 parts by weight silica gel, 1-10 parts by weight of crosslinking agent and 0- are taken
10 parts by weight of blowing agent, 0.1-5 part by weight of catalyst are uniformly mixed with the filler of 0-10 parts by weight and put into mold；
(2) 100-200 DEG C, die pressure 0.1-0.6MPa, heat-insulation pressure keeping 1-10 minutes will be warming up in mold；
(3) mold is cooled to 10-30 DEG C to get silica gel and thermoplastic elastomer foaming bead composite material is arrived.
10. a kind of silica gel a kind of as described in claim any one of 1-8 and thermoplastic elastomer foaming bead composite material are in shoes
Application in material, tire, bicycle seat, upholstery and/or mulching material.
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Cited By (1)
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| CN110452523A (en) * | 2019-08-01 | 2019-11-15 | 无锡市井上海绵有限公司 | A kind of sound-absorbing sponge and preparation method |
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Application publication date: 20190604 |