CN105525734A - Anti-static rubber floor board with foam layer and production method thereof - Google Patents
Anti-static rubber floor board with foam layer and production method thereof Download PDFInfo
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- CN105525734A CN105525734A CN201510161581.1A CN201510161581A CN105525734A CN 105525734 A CN105525734 A CN 105525734A CN 201510161581 A CN201510161581 A CN 201510161581A CN 105525734 A CN105525734 A CN 105525734A
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Abstract
The invention relates to an anti-static rubber floor board with a foam layer and a production method thereof. The rubber floor board consists of a face layer, a middle layer and a bottom layer. By optimizing a formula and combining the production process improvement, the multilayer combination one-step shaping and the green production are realized; the bonding by bonding agents is not needed; and the production process is simplified. The production method has the characteristic that parisons of the middle layer, i.e. the foam layer are subjected to long-time standing.
Description
Technical field
The present invention relates to field, floor, more specifically relate to rubber floor covering and production method thereof.
Background technology
The application of rubber floor covering widely, such as electronic device production department, large area office, some public place such as school, airport, and the vehicles such as aircraft, train, use rubber floor covering can anti-skidding, reduce noise, and due to rich color, also have the effect of decoration.In addition, in these places, such as, in the workshop producing, assemble electronic product, using the office of multiple computers and other electronic office equipment such as printer, duplicator etc., often produce a large amount of electrostatic.These electrostatic can cause adverse effect to the healthy of people or product quality if do not eliminated.In order to eliminate electrostatic, normally in floor, introduce antistatic additive and/or conductive material, such as conductive black, the electric charge that rubber floor covering produces is transmitted to ground by conductive black and antistatic additive and is eliminated electrostatic.
Needing the occasion on more soft ground, then rubber floor covering is almost unique selection.This is normally realized by a cushion coat additional in rubber floor covering.A kind of embodiment is two-layer rubber floor covering, above one deck solid layer, below one deck foaming layer; Another kind of embodiment is three layers of rubber floor covering, and upper strata and bottom are solid layer, middle one deck foaming layer.All by cementing agent, different layers is bonded together in prior art.At least there are 2 deficiencies in the mode of this use cementing agent: first cementing agent can form the thick or thin film of one deck between adjacent layers, this film more or less can reduce electric conductivity between layers, especially, for above-mentioned three-layer type rubber floor covering, this reduction effect is more obvious; It two is that the use of cementing agent can cause environment pollution, is also harmful to the health of user and operating worker.
Summary of the invention
The technical problem that the present invention solves overcomes in prior art and cementing agent must be used to carry out the laminated defect of rubber floor covering, achieves a rubber floor covering step that is laminated and foaming and complete.
Antistatic rubber floor according to band foaming layer of the present invention is made up of surface layer, intermediate layer and bottom, these three layers all comprise conductive black, the rubber constituent in described intermediate layer is acrylonitrile-butadiene rubber, comprise softening agent and blowing agent in addition, and the content of acrylonitrile-butadiene rubber is not less than 50% of intermediate layer gross weight in intermediate layer, the content of softening agent is the 2-5% of intermediate layer gross weight, and described rubber floor covering is by this blank of three layers one-shot forming in sulfidation.
In a kind of detailed description of the invention, the method preparing this rubber floor covering comprises the following steps:
A) rubber plastic steelmaking: the base rubber of each layer of plasticating respectively,
B) layering is mixing: prepare material according to each layer formula, respectively mixing in banbury, mixing evenly after use mill slice,
C) park: under room temperature, intermediate layer is parked more than 7 days,
D) removing from mould: surface layer, intermediate layer, bottom after having added vulcanizing agent on request removing from mould to length, width, the thickness of regulation, obtain each stratotype base,
E) sulfuration: each stratotype base is gone up to sulfuration on drum vulcanizer in order.
Do not use cementing agent to carry out layer bonding according to the foaming layer rubber floor covering that the present invention obtains, realize green production, and improve the electric conductivity on floor.
Detailed description of the invention
As being not particularly illustrated, the present invention when mentioning proportioning all with parts by weight.
Rubber floor covering of the present invention is formed by three layers, i.e. surface layer, intermediate layer and bottom, and every layer all contains conductive black, and wherein intermediate layer is foaming layer.These three layers is compressed together by sulfidation one-shot forming, does not need to be bondd by cementing agent.The production method of prior art is carry out intermediate layer foaming in grinding tool, bonds together after foaming with cementing agent and surface layer.Prior art cannot use one-shot forming work, reason be blowing agent in intermediate layer and foaming layer the short time compressing in cannot uniform in foaming because blowing agent being not easy in rubber composition is dispersed.
In the present invention, for the formation of in the material in intermediate layer based on acrylonitrile-butadiene rubber elastomeric material, and the content of acrylonitrile-butadiene rubber is not less than 50% of intermediate layer gross weight, but usually also not higher than 70% of intermediate layer gross weight; On the other hand, in formula, introduce softening agent, the content of softening agent is the 2-5% of intermediate layer gross weight.Adopt this proportioning, intermediate layer is being deposited in blank process, and blowing agent can continue to disperse or dissolve process, reaches equally distributed effect.
In a kind of exemplary embodiment of the present invention, intermediate layer comprises acrylonitrile-butadiene rubber 100, conductive black 10-20, vulcanization accelerator 2-6, reinforcing filler 40-70, softening agent 5-15, blowing agent 2-10, other 5-10.
The reinforcing filler that can be used for rubber floor covering intermediate layer of the present invention comprises white bole, barium sulfate, brium carbonate, barium nitrate, barium chloride, barium monoxide, titanium dioxide, zinc oxide, zinc sulfate, zinc nitrate, French chalk, barium phosphate, White Carbon black, magnesium silicate, calcium silicates.The present invention preferably uses white carbon and white bole, can obtain higher hardness and mechanical strength.
The example that can be used as above-mentioned vulcanization accelerator has 2-benzothiazolyl mercaptan, dibenzothiazyl disulfide, N-tertiary butyl-2-[4-morpholinodithio sulfenamide, two sulphur Four Modernizations methyl thiurams, sulphur, 2-(4-morpholine sulfo-) benzothiazole.
The example that can be used as above-mentioned softening agent includes but not limited to repefral, dioctyl phthalate, dibutyl phthalate, di-heptanyl adipate, dioctyl adipate, dinonyl adipate, didecyl adipate, pimelic acid two heptyl ester, pimelic acid dioctyl ester, pimelic acid two ester in the ninth of the ten Heavenly Stems, pimelic acid didecyl, suberic acid two heptyl ester, suberic acid dioctyl ester, suberic acid two ester in the ninth of the ten Heavenly Stems, suberic acid didecyl, azelaic acid two heptyl ester, dioctyl azelate, azelaic acid two ester in the ninth of the ten Heavenly Stems, azelaic acid didecyl, decanedioic acid two heptyl ester, di-n-octyl sebacate, di-n-nonyl sebacate, or decanedioic acid didecyl, wherein preferably use repefral, di-n-octyl sebacate.
Be preferred for blowing agent of the present invention and comprise N, N-dinitrosopentamethylene tetramine, Celogen Az, sodium bicarbonate, adopt this blowing agent and above-mentioned preferred reinforcing filler, softening agent and acrylonitrile-butadiene rubber with the use of time, the dispersive property of blowing agent is fine.
According to the present invention, the rubber constituent in surface layer and bottom can be thermoset rubber, thermoplastic elastomer etc.The example of rubber comprises one or more natural rubbers, polyisoprene, cis-Isosorbide-5-Nitrae-polyisoprene, high-cis-Isosorbide-5-Nitrae-polyisoprene, isoprene/isobutene rubber, isoprene/butadiene polymer, acrylonitrile/butadiene rubber, hydrogenated acrylonitrile/butadiene rubber (HNBR), acrylic rubber, ethylene/acrylic acid elastic body, isobutylene-co-to methyl isoprene, bromination process isobutylene-co-to methyl isoprene, neoprene (chlorobutadiene), polybutadiene, Isosorbide-5-Nitrae-polybutadiene, high-cis-Isosorbide-5-Nitrae-polybutadiene rubber, low cis-Isosorbide-5-Nitrae-polybutadiene rubber, high vinyl polybutadiene rubber, ethylene/propylene/diene rubber (EPDM), ethylene/propylene rubber (EPM), chlorosulfonated polyethylene (CSM), styrene copolymer, styrene block copolymer, styrene/isoprene/styrene (SIS) rubber, / butadiene rubber (SBR), by SBR styrene butadiene rubbers prepared by emulsion polymerisation, by SBR styrene butadiene rubbers prepared by polymerisation in solution, styrene/ethylene/butadiene/styrene copolymers (SEBS), ethylene/vinyl acetate (EVA) polymer, butyl rubber, chlorobutyl rubber, bromobutyl, chlorine halogenated butyl rubber, branched butyl, star-branched butyl rubber, ethylene/propylene rubber, chlorosulfonated polyethylene, hydrogenated nitrile-butadiene rubber, carboxylated nitrile rubber, acrylic rubber, hydrin rubber, fluoroelastomer, fluorocarbon rubber, polyphosphazene, polysulfide rubber, polyurethane rubber, polysiloxanes, natural rubber and solution S BR blend, low Tg polybutadiene and SBR blend etc., thermoplastic elastomer (TPE), such as thermoplastic polyurethane, poly-(vinyl chloride) (PVC), PVC/ nitrile rubber blends, styrene block copolymer, copolyester elastomer, conjugated polyether ester elastomer, TPV (polypropylene/EPDM, polypropylene/acrylonitrile-butadiene rubber etc.), copolyamide elastomer etc.In preferred forms of the present invention, in surface layer and bottom, all use acrylonitrile-butadiene rubber.Three layers all adopt acrylonitrile-butadiene rubber, more easily laminated in sulfidation, engage between layers firmly in other words.
Usually also contain vulcanization accelerator, reinforcing filler and other functional components in surface layer and bottom, the example of other compositions has pigment, antiscorching agent, age resistor etc.These are known by those skilled in the art.Further preferably, also containing softening agent in bottom, this softening agent is preferably identical with the softening agent used in aforementioned intermediate layer.
Further preferably, in three layers, all amount of retardant is introduced.May be used for fire retardant of the present invention and comprise chlorinated paraffin, Firebrake ZB, three oxygen two antimony etc.
In the preferred embodiment of the present invention, each layer formula of rubber floor covering is as follows: surface layer comprises: acrylonitrile-butadiene rubber 100, conductive black 10-15, vulcanization accelerator 2-6, reinforcing filler 50-80, fire retardant 10-30, other 10-20; Intermediate layer: acrylonitrile-butadiene rubber 100, conductive black 10-20, vulcanization accelerator 2-6, blowing agent 2-5, reinforcing filler 50-80, fire retardant 10-30, softening agent 5-15, other 5-10; Bottom: acrylonitrile-butadiene rubber 100, conductive black 10-20, vulcanization accelerator 2-6, reinforcing filler 40-70, fire retardant 10-30, softening agent 10-15, other 5-10.
Other described in each layer refer to some conventional functional components, and such as age resistor, vulcanizing agent, pigment, antistatic agent etc., this is well-known to those skilled in the art.
The method manufacturing Antistatic rubber floor of the present invention comprises the following steps:
A) rubber plastic steelmaking: the base rubber of each layer of plasticating, this normally carries out in opening rubber mixing machine, is plasticated by the thin-pass of certain hour, reaches certain plasticity.
B) layering is mixing: prepare material according to each layer formula, respectively mixing in banbury, mixing evenly after use mill slice.
C) park: under room temperature, surface layer and bottom are parked 1-7 days, compounding ingredient is uniformly dispersed, intermediate layer is parked 7-9 day more than, preferably park 10-20 days, 1-7 days time parked by bottom.
D) removing from mould: the surface layer parked, intermediate layer, bottom after having added vulcanizing agent on request removing from mould to length, width, the thickness of regulation, obtain each stratotype base.
E) sulfuration: each stratotype base is gone up to sulfuration on drum vulcanizer in order.Curing temperature is preferably between 140-160 DEG C, and in sulfidation, intermediate layer completes foaming, and meanwhile, each layer is laminated into one.
The present invention is by above-mentioned composition and engineering, intermediate layer foaming is completed in vulcanization process, and it is laminated to realize with surface layer and bottom, without the need to carrying out separately the foaming of foaming layer, also multi-layer bonded without the need to using cementing agent to carry out, simplify production technology, the green production and safety realizing rubber floor covering use.
Claims (10)
1. the Antistatic rubber floor with foaming layer, be made up of surface layer, intermediate layer and bottom, it is characterized in that, these three layers all comprise conductive black, the rubber constituent in described intermediate layer is acrylonitrile-butadiene rubber, comprises softening agent and blowing agent in addition, and in intermediate layer, the content of acrylonitrile-butadiene rubber is not less than 50% of intermediate layer gross weight, the content of softening agent is the 2-5% of intermediate layer gross weight, and described rubber floor covering is by this blank of three layers one-shot forming in sulfidation.
2. Antistatic rubber floor according to claim 1, wherein, the rubber constituent of described surface layer and bottom is also acrylonitrile-butadiene rubber.
3. Antistatic rubber floor according to claim 1, wherein, described intermediate layer comprises acrylonitrile-butadiene rubber 100 with parts by weight, conductive black 10-20, vulcanization accelerator 2-6, reinforcing filler 40-70, softening agent 5-15 and blowing agent 2-10.
4. Antistatic rubber floor according to claim 1, wherein, described reinforcing filler is hard carbon black, white carbon, potter's clay.
5. Antistatic rubber floor according to claim 1, wherein, described softening agent is mineral oil, dibutylester, dibutyl ester.
6. Antistatic rubber floor according to claim 1, wherein, described blowing agent is N, N-dinitrosopentamethylene tetramine, Celogen Az or sodium bicarbonate.
7. Antistatic rubber floor according to claim 1, wherein, the raw material of each layer is composed as follows:
Surface layer: acrylonitrile-butadiene rubber 100, conductive black 10-15, vulcanization accelerator 2-6, reinforcing filler 50-80, fire retardant 10-30, other 10-20;
Intermediate layer: acrylonitrile-butadiene rubber 100, conductive black 10-20, vulcanization accelerator 2-6, blowing agent 2-10, reinforcing filler 50-80, fire retardant 10-30, softening agent 5-15, other 5-10;
Bottom: acrylonitrile-butadiene rubber 100, conductive black 10-20, vulcanization accelerator 2-6, reinforcing filler 40-70, fire retardant 10-30, softening agent 10-15, other 5-10.
8. the production method of rubber floor covering described in any one of claim 1 to 7, comprises the following steps:
A) rubber plastic steelmaking: the base rubber of each layer of plasticating respectively,
B) layering is mixing: prepare material according to each layer formula, respectively mixing in banbury, mixing evenly after use mill slice,
C) park: under room temperature, intermediate layer is parked more than 7 days,
D) removing from mould: surface layer, intermediate layer, bottom after having added vulcanizing agent on request removing from mould to length, width, the thickness of regulation, obtain each stratotype base,
E) sulfuration: each stratotype base is gone up to sulfuration on drum vulcanizer in order.
9. production method according to claim 8, wherein, in step C) in, surface layer and bottom are parked more than 24 hours.
10. production method according to claim 8, wherein, in step e) in, curing temperature is preferably between 140-160 DEG C.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510161581.1A CN105525734B (en) | 2015-04-07 | 2015-04-07 | Antistatic rubber floor with foaming layer and its production method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510161581.1A CN105525734B (en) | 2015-04-07 | 2015-04-07 | Antistatic rubber floor with foaming layer and its production method |
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| CN105525734A true CN105525734A (en) | 2016-04-27 |
| CN105525734B CN105525734B (en) | 2018-10-12 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106346815A (en) * | 2016-11-23 | 2017-01-25 | 刘浩杰 | Processing method of colorful compounded rubber floor |
| CN108892825A (en) * | 2018-06-01 | 2018-11-27 | 杜肯新材料（武汉）集团股份有限公司 | A kind of rubber-plastic foamed thermal insulation material of MULTILAYER COMPOSITE and preparation method |
| CN114876152A (en) * | 2022-03-25 | 2022-08-09 | 浙江艾特普科技有限公司 | Intelligent terrace structure and construction method thereof |
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| CN1093378A (en) * | 1994-02-05 | 1994-10-12 | 郭才生 | Conductive rubber decoration board |
| CN1857916A (en) * | 2005-05-08 | 2006-11-08 | 翁国文 | Color combined composite rubber floor and its preparing process |
| KR20070092528A (en) * | 2006-03-10 | 2007-09-13 | (주)신동해인터내쇼널 | Method of floor sheet and floor sheet prepared by the same |
| CN101597951A (en) * | 2009-07-20 | 2009-12-09 | 许立平 | Macromolecular sound proofing floor and preparation method |
| CN202227659U (en) * | 2011-08-09 | 2012-05-23 | 傅祥正 | Rubber non-slip elastic floor board |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1093378A (en) * | 1994-02-05 | 1994-10-12 | 郭才生 | Conductive rubber decoration board |
| CN1857916A (en) * | 2005-05-08 | 2006-11-08 | 翁国文 | Color combined composite rubber floor and its preparing process |
| KR20070092528A (en) * | 2006-03-10 | 2007-09-13 | (주)신동해인터내쇼널 | Method of floor sheet and floor sheet prepared by the same |
| CN101597951A (en) * | 2009-07-20 | 2009-12-09 | 许立平 | Macromolecular sound proofing floor and preparation method |
| CN202227659U (en) * | 2011-08-09 | 2012-05-23 | 傅祥正 | Rubber non-slip elastic floor board |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106346815A (en) * | 2016-11-23 | 2017-01-25 | 刘浩杰 | Processing method of colorful compounded rubber floor |
| CN108892825A (en) * | 2018-06-01 | 2018-11-27 | 杜肯新材料（武汉）集团股份有限公司 | A kind of rubber-plastic foamed thermal insulation material of MULTILAYER COMPOSITE and preparation method |
| CN114876152A (en) * | 2022-03-25 | 2022-08-09 | 浙江艾特普科技有限公司 | Intelligent terrace structure and construction method thereof |
| CN114876152B (en) * | 2022-03-25 | 2024-06-11 | 浙江艾特普科技有限公司 | Intelligent terrace structure and construction method thereof |
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| CN105525734B (en) | 2018-10-12 |
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