CN102850962B - Gum for artificial grass - Google Patents
Gum for artificial grass Download PDFInfo
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- CN102850962B CN102850962B CN201210379969.5A CN201210379969A CN102850962B CN 102850962 B CN102850962 B CN 102850962B CN 201210379969 A CN201210379969 A CN 201210379969A CN 102850962 B CN102850962 B CN 102850962B
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Abstract
The invention discloses a gum for artificial grass. The gum comprises the following components by weight percent: 100 parts of polypropylene (PP), 5-100 parts of ethylene vinyl acetate (EVA), 5-10 parts of paraffins, 0.1-0.5 part of antioxidant and 0.1-0.5 part of uvioresistant agent, wherein the100 parts of the PP is taken as the reference. Compared with the prior art, the gum for the artificial grass, disclosed by the invention, solves the defects of the prior art and has the advantages of environmental friendliness, good weather resistance, recoverability and the like.
Description
Technical field
The present invention relates to pedaline field, exactly refer to the gum of a kind of pedaline.
Background technology
Due to artificial turf have anti-aging, sun-proof, waterproof, anti-skidding, wear-resisting, comfortable foot feeling, lovely luster, long service life, maintaining expense low, the advantage such as can round-the-clockly use, therefore, recently in multiple occasions such as stadiums, school, hotel and building roofs, be widely applied.At present, the structure of existing artificial turf, it is mainly comprised of grass, the careless end and gum.Conventionally, grass and the grass end, made by thermoplastic macromolecule material, and for example grass is mainly made by polyethylene, and the grass end is mainly made by polypropylene, and gum conventionally by thermoset cross-linked macromolecular material, for example vulcanizes carboxylic styrene-butadiene rubber or urethane is made.The effect of gum is that grass is fixed on to grass at the end, makes grass be difficult for extracting out from the grass end.Gum should be able to be bonded together polyethylene, polypropylene, also will have certain intensity, the performance such as water-fast, heat-resisting, cold-resistant, anti-aging simultaneously.For example, existing artificial turf gum is made by carboxylic styrene butadiene latex, calcium carbonate, sulphur, promotor conventionally, (as more than 145 ℃) specifically at a certain temperature, by vulcanization system (sulphur, promotor), cause the crosslinked of carboxylic styrene butadiene latex, obtain vulcanizing carboxylic styrene-butadiene rubber.Carboxylic styrene-butadiene rubber after over cure is thermoset macromolecule material, and molecular chain is cross-linked structure, molten not insoluble, after being heated, can only decompose, and can not soften, and can not be returned to plastic state.
In existing artificial turf, grass and the grass end be by thermoplastic macromolecule material for example polyethylene, polypropylene make, and gum is to be made by sulfuration carboxylic styrene-butadiene rubber or this class thermoset macromolecule material of cross-linked polyurethane.As everyone knows, thermoplastic macromolecule material can thermoplastic repeatedly in specific temperature range, cooling curing machine-shaping.And thermoset cross-linked macromolecular material is under the conditions such as certain temperature after sulfidization molding, just no longer can the machine-shaping again by rising temperature.Thereby the consistency between the two is poor, can not be by the recycling simultaneously of the methods such as melt blending.So the existing artificial turf of being prepared by materials such as polyethylene, polypropylene, carboxylic styrene-butadiene rubber or urethane can not be unified recycling.On the one hand, discarded or burning can cause environmental pollution and the wasting of resources; On the other hand, by grass, the end again recovery separated with gum can cause cost recovery too high with grass.
At present, mainly there is following drawback in existing gum material:
1, not environmental protection:
A, have the volatilization of VOC to be unfavorable for environmental protection: the gum of conventional pedaline be generally carboxylic styrene butadiene latex or non-plasticizing type acetic acid second rare-ethylene copolymerization emulsions is as main raw.Because the reactivity of monomer in the process of polymerization is the highest, can only reach nineties percent, so can contain in this case a certain amount of volatile organic matter (being VOC) in latex, production link under connecing: join in the process of glue stirring, gluing and gum baking and all can have a large amount of obnoxious flavoures to discharge, staff's health is caused to bad impact, also can become certain pollution to surrounding environment simultaneously.And the VOC in gum can not evaporate quickly, in ensuing finished product use procedure, also can damage human consumer, also can pollute environment for use simultaneously.The existence meeting of B, heavy metal causes certain pollution to environment: in the latex fabrication of gum, generally in main material latex, add a certain amount of calcium class material as filling, general production cost-saving selection coarse whiting of poor quality is as packing material.Heavy metal content in coarse whiting is in this case generally higher.So can cause certain injury to the human consumer especially health of the aspects such as growth of You Ling colony in actual use procedure.
2, weathering resistance is good not, especially aspect acid and alkali-resistance: because the gum of traditional pedaline is that latex adds inorganic calcium powder and stirs and pass through baking process and form, all can occur dry linting in various degree and have a certain amount of bubble to occur (being mainly the CO of calcium carbonate and acid-respons generation in general acid proof test
2), so be immersed in for a long time the phenomenon that efflorescence easily appears in gum in sour environment in the flourishing region of industry.
3, reusable edible does not cause waste to the energy: owing to containing a large amount of inorganic fills in traditional artificial grass stamp gum, and general adopt or black, this causes very large difficulty to reclaiming, in general plastic parts, be difficult to fill, the cost of modification generally can be very high, so general pedaline has been disposed as rubbish at the Shi Douhui that dies, because the degradation cycle of plastics generally needs very for a long time this, be again one to pollute greatly concerning environment, be also very large waste simultaneously concerning the energy of day by day shortage.
Summary of the invention
For above-mentioned defect, the technical problem that the present invention solves is to provide the gum of a kind of pedaline, has solved the defect of above prior art, has environmental protection, good weatherability, the advantage such as recyclable.
In order to solve above technical problem, the gum of pedaline provided by the invention, comprises following component:
Above component is component proportioning by weight, and to take the weight that PP is 100 parts be benchmark; After adding other subsidiary material, with homogenizer, carry out blend batching, glue is melted in the shearing formation through screw rod under the high temperature of 140 ~ 220 degree of mixed material, buffering through glue groove is carried out transverse distribution to melting glue, then under the effect of Frictioning device and the flat effect of flow by gravity, carry out glue-spreading operation, gum is the raising appearance effect of careless line and the control of gum binding force in the process process of baking oven, when glue-spreading, the temperature of grass face one side is controlled at 50 ~ 80 degree, and the temperature of back-adhesive surface is controlled at 100 ~ 150 degree.
Preferably, the gum of pedaline also comprises rosin, and wherein, the proportioning of rosin is 0.1-15 part, and above component is component proportioning by weight.
Preferably, the gum of pedaline also comprises fiber, and wherein, the proportioning of fiber is 0.1-1 part, and above component is component proportioning by weight.
Preferably, the gum of pedaline comprises following component:
Above component is component proportioning by weight, and to take the weight that PP is 100 parts be benchmark.
Preferably, the gum of pedaline comprises following component:
Above component is component proportioning by weight, and to take the weight that PP is 100 parts be benchmark.
Preferably, the gum of pedaline comprises following component:
Above component is component proportioning by weight, and to take the weight that PP is 100 parts be benchmark.
Preferably, the gum of pedaline comprises following component:
Above component is component proportioning by weight, and to take the weight that PP is 100 parts be benchmark.
Preferably, comprise following component:
Above component is component proportioning by weight, and to take the weight that PP is 100 parts be benchmark.
Compared with prior art, the gum of pedaline provided by the invention, has solved the defect of above prior art, has environmental protection, good weatherability, the advantage such as recyclable, particularly as follows:
1, environmental protection: employing be that modified olefin is basic material, Selective filling material is also the larger molecular organicses such as hydro carbons or hydrocarbon derivative, thereby the reaction molecular chain that can occur in melting process between molecular chain becomes large, so change gum under normal service condition, there will not be and have separating out of the obnoxious flavour of VOC class; Meanwhile, because hydrocarbons is to be refined and produced by crude oil, resin is pure organism, adds that the environment of production does not relate to heavy metal, so this gum is also 100% environmental protection aspect heavy metal;
2, good weatherability: the weathering resistance of alkene is generally reasonable, adds oxidation inhibitor to stop the oxidized antioxygen of the molecular chain of gum material in processing or use procedure to keep the native mode of gum molecular chain in the present invention; In formula, add a certain amount of anti UV agent to prevent that molecular chain from changing under the effect of ultraviolet simultaneously and affect the work-ing life of gum;
3, recycling capable of circulation: turf medium-height grass line, base fabric is ethene or propylene and modified material-it is olefines material to the main raw of three parts of gum, their consistency is better from theory, under high-temperature fusion condition, between the molecular chain of additional suitable ambient conditions or promotor hydrocarbons, can there is fracture and the restructuring of a chemical bond in " C=C-", thereby between molecular chain and molecular chain, form new chemical bond, it is the crosslinking reaction between polyolefine, so the material after turf is pulverized granulation is as the cross-linking modified material of alkene and Individual existence, it is in mobility, intensity, the character of the aspects such as suppleness and alkene itself is more approaching, simultaneously owing to having added suitable oxidation inhibitor and uvioresistant agent material itself to there is certain weathering resistance in the process producing careless line and gum, so can process use in general plastic cement products is produced, therefore, from careless line, base fabric is to gum, whole turf is as a complete recyclable system, the main raw material that can be used as certain plastic cement products after simple fragmentation again modification granulation is used.
Embodiment
For those skilled in the art can understand technical scheme provided by the present invention better, below in conjunction with specific embodiment, set forth.
The gum of pedaline provided by the invention, comprises following component:
Above component is component proportioning by weight, and to take the weight that PP is 100 parts be benchmark; After adding other subsidiary material, with homogenizer, carry out blend batching, glue is melted in the shearing formation through screw rod under the high temperature of 140 ~ 220 degree of mixed material, buffering through glue groove is carried out the distribution of horizontal 4 meters of fabric widths to melting glue, then under the effect of Frictioning device and the flat effect of flow by gravity, carry out glue-spreading operation; Gum is through being to improve the appearance effect of careless line and the control of gum binding force in the process of baking oven, and when glue-spreading, the temperature of careless face one side is controlled at 50 ~ 80 degree, and the temperature of back-adhesive surface is controlled at 100 ~ 150 degree.
Wherein PP is the acrylic resin after modification, and what EVA was ethylene-vinyl acetate is material modified.
In initial selection experiment, 100% PP also can be used as the operation that gum completes gum, but the temperature of experiment can will exceed 20-50 degree than the temperature after improving, higher temperature can impact the quality of grass silk, the film forming insufficient strength of gum is large simultaneously, and the mobility of melten gel is bad, cause the binding force of turf not reach desired value.Therefore in the process of modification, consider to add some suitable subsidiary material to carry out modification to material.
EVA: the transparency that can improve gum in the mobility that reduces melten gel.The melt temperature of EVA is lower, melting index larger (being that mobility is relatively good) transparency is higher, the mobility of melting glue improves greatly with the change of EVA amount, but gum becomes film strength also to decline thereupon, and when resin is 1:1 with the ratio of EVA, the mobility of gum becomes the net effect of film toughness to reach best situation with gum; Otherwise extraordinarily become film strength improving but the mobility of gum is but declining with the reduction of EVA ratio, the reduction of melting glue mobility directly affects the quality of gum, and mobility and the gum intensity of when the adding proportion of EVA is 10 parts, melting glue form another point of crossing.
Although rosin has a certain impact to the transparent color and luster of gum to a certain extent, but it has good help aspect sticking power of gum, can improve the bonding of gum and base material, the binding force of turf is had to certain help simultaneously, add the binding force of suitable rosin turf under equal conditions can improve 10%-20%.Rosin add the cost that can effectively reduce gum, but go and affect the color of gum and the smooth degree on surface.In the scope of 0.1-15 part, the binding force that effectively guarantees turf gum under the color of glue and the prerequisite of surperficial smooth degree can guaranteed to melt.
Adding of paraffin is mainly to improve the mobility of gum when molten state, is conducive to melten gel and fills the gap between grass silk and bottom in the process of turf gum, can improve the stability of grass silk on bottom.Paraffin add the mobility that can effectively improve gum, but along with the increasing of paraffin ratio transparency extraordinarily declines, the wear-resistant effect of gum decline sharply simultaneously, the net effect in the scope of 5 ~ 10 parts is worth adopting.
Adding of fiber is mainly intensity and the toughness that improves gum.But along with the mobility of melting glue adding of fiber is in decline sharply, so generally the addition of fiber is lower, general control is in 0.1 ~ 1.0 scope.
Adding of antioxidant is mainly the resistance of oxidation that improves gum, improves its weathering resistance.Stop reacting of molecular chain and extraneous oxide compound, adding proportion is too low for affect the antioxidant of gum, otherwise add too much, takes and causes waste can affect cost simultaneously.According to the market of different trade mark oxidation inhibitor on market, adding proportion is generally 0.1 ~ 0.5 part.
Adding of anti UV agent is mainly the ultraviolet line ability that improves gum, improves its weathering resistance.Stop molecular chain to change and cause decomposition reaction under ultraviolet effect, adding proportion is too low for affecting the anti-UV effect of gum, otherwise add too many expense, causes waste can affect cost simultaneously.According to the market of the anti-UV agent of the different trades mark on market, adding proportion is generally 0.1 ~ 0.5 part.
Embodiment 1
The gum of the pedaline that the present embodiment provides comprises following component:
Above component is component proportioning by weight, and to take the weight that PP is 100 parts be benchmark.
Embodiment 2
The gum of the pedaline that the present embodiment provides comprises following component:
Above component is component proportioning by weight, and to take the weight that PP is 100 parts be benchmark.
Embodiment 3
The gum of the pedaline that the present embodiment provides comprises following component:
Above component is component proportioning by weight, and to take the weight that PP is 100 parts be benchmark.
Embodiment 4
The gum of the pedaline that the present embodiment provides comprises following component:
Above component is component proportioning by weight, and to take the weight that PP is 100 parts be benchmark.
Embodiment 5
The gum of the pedaline that the present embodiment provides comprises following component:
Above component is component proportioning by weight, and to take the weight that PP is 100 parts be benchmark.
Compared with prior art, the gum of pedaline provided by the invention, has solved the defect of above prior art, has environmental protection, good weatherability, the advantage such as recyclable, particularly as follows:
1, environmental protection: employing be that modified olefin is basic material, Selective filling material is also the larger molecular organicses such as hydro carbons or hydrocarbon derivative, thereby the reaction molecular chain that can occur in melting process between molecular chain becomes large, so change gum under normal service condition, there will not be and have separating out of the obnoxious flavour of VOC class; Meanwhile, because hydrocarbons is to be refined and produced by crude oil, resin is pure organism, adds that the environment of production does not relate to heavy metal, so this gum is also 100% environmental protection aspect heavy metal;
2, good weatherability: the weathering resistance of alkene is generally reasonable, adds oxidation inhibitor to stop the oxidized antioxygen of the molecular chain of gum material in processing or use procedure to keep the native mode of gum molecular chain in the present invention; In formula, add a certain amount of anti UV agent to prevent that molecular chain from changing under the effect of ultraviolet simultaneously and affect the work-ing life of gum;
3, recycling capable of circulation: turf medium-height grass line, base fabric is ethene or propylene and modified material-it is olefines material to the main raw of three parts of gum, their consistency is better from theory, under high-temperature fusion condition, between the molecular chain of additional suitable ambient conditions or promotor hydrocarbons, can there is fracture and the restructuring of a chemical bond in " C=C-", thereby between molecular chain and molecular chain, form new chemical bond, it is the crosslinking reaction between polyolefine, so the material after turf is pulverized granulation is as the cross-linking modified material of alkene and Individual existence, it is in mobility, intensity, the character of the aspects such as suppleness and alkene itself is more approaching, simultaneously owing to having added suitable oxidation inhibitor and uvioresistant agent material itself to there is certain weathering resistance in the process producing careless line and gum, so can process use in general plastic cement products is produced, therefore, from careless line, base fabric is to gum, whole turf is as a complete recyclable system, the main raw material that can be used as certain plastic cement products after simple fragmentation again modification granulation is used.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use the present invention.To the multiple modification of these embodiment, will be apparent for those skilled in the art, General Principle as defined herein can, in the situation that not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (6)
1. a gum for pedaline, is characterized in that, comprises following component:
Above component is component proportioning by weight, and to take the weight that PP is 100 parts be benchmark; After adding other subsidiary material, with homogenizer, carry out blend batching, glue is melted in the shearing formation through screw rod under the high temperature of 140～220 degree of mixed material, buffering through glue groove is carried out transverse distribution to melting glue, then under the effect of Frictioning device and the flat effect of flow by gravity, carries out glue-spreading operation; Gum is through being to improve the appearance effect of careless line and the control of gum binding force in the process of baking oven, and when glue-spreading, the temperature of careless face one side is controlled at 50～80 degree, and the temperature of back-adhesive surface is controlled at 100～150 degree.
2. the gum of pedaline according to claim 1, is characterized in that, comprises following component:
Above component is component proportioning by weight, and to take the weight that PP is 100 parts be benchmark.
3. the gum of pedaline according to claim 1, is characterized in that, comprises following component:
Above component is component proportioning by weight, and to take the weight that PP is 100 parts be benchmark.
4. the gum of pedaline according to claim 1, is characterized in that, comprises following component:
Above component is component proportioning by weight, and to take the weight that PP is 100 parts be benchmark.
5. the gum of pedaline according to claim 1, is characterized in that, comprises following component:
Above component is component proportioning by weight, and to take the weight that PP is 100 parts be benchmark.
6. the gum of pedaline according to claim 1, is characterized in that, comprises following component:
Above component is component proportioning by weight, and to take the weight that PP is 100 parts be benchmark.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210379969.5A CN102850962B (en) | 2012-09-29 | 2012-09-29 | Gum for artificial grass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210379969.5A CN102850962B (en) | 2012-09-29 | 2012-09-29 | Gum for artificial grass |
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| Publication Number | Publication Date |
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| CN102850962A CN102850962A (en) | 2013-01-02 |
| CN102850962B true CN102850962B (en) | 2014-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210379969.5A Active CN102850962B (en) | 2012-09-29 | 2012-09-29 | Gum for artificial grass |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999028557A1 (en) * | 1997-12-04 | 1999-06-10 | Ian David Walters | Artificial turf |
| CN101424068A (en) * | 2007-11-02 | 2009-05-06 | 张碧 | Novel synthetic turf and method for producing the same |
| CN102087081A (en) * | 2010-11-02 | 2011-06-08 | 广州爱奇实业有限公司 | Invisible artificial grass with wave absorption function and preparation method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005026765A1 (en) * | 2005-06-10 | 2006-12-14 | Degussa Ag | Back fixation of artificial turf raw material with hot melt adhesives based on amorphous poly-alpha-olefins and / or modified, amorphous poly-alpha-olefins |
-
2012
- 2012-09-29 CN CN201210379969.5A patent/CN102850962B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999028557A1 (en) * | 1997-12-04 | 1999-06-10 | Ian David Walters | Artificial turf |
| CN101424068A (en) * | 2007-11-02 | 2009-05-06 | 张碧 | Novel synthetic turf and method for producing the same |
| CN102087081A (en) * | 2010-11-02 | 2011-06-08 | 广州爱奇实业有限公司 | Invisible artificial grass with wave absorption function and preparation method thereof |
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| CN102850962A (en) | 2013-01-02 |
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