CN101293386A - Process for manufacturing vibration-suction foamed plastic - Google Patents
Process for manufacturing vibration-suction foamed plastic Download PDFInfo
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- CN101293386A CN101293386A CNA2007100976697A CN200710097669A CN101293386A CN 101293386 A CN101293386 A CN 101293386A CN A2007100976697 A CNA2007100976697 A CN A2007100976697A CN 200710097669 A CN200710097669 A CN 200710097669A CN 101293386 A CN101293386 A CN 101293386A
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Abstract
The invention relates to a manufacture method for a vibration absorption foamed plastic, which comprises the following steps: providing a main parent metal component with high VA content and an additive component according to the preconcerted proportion to be mixed and stirred uniformly to form a mixture; then, carrying out mixing on the mixture under the preconcerted temperature and extruding out after finishing the mixing to form a primary blank body; putting the blank body on a hot-rolling platform, molding and foaming for the preconcerted time at the preconcerted temperature and under the preconcerted pressure to manufacture a foaming body; taking the foaming body out from the hot-roll platform; a finished product can be obtained after natural cooling. The main parent metal with high VA content is used in the mixture to lead the manufactured finished product of the foamed plastic to be capable of performing more excellent vibration absorption property and to be capable of further being manufactured into a product with better protective effect, thus leading the manufacture method of the invention to have the characteristic of being capable of manufacturing the foamed plastic with better vibration absorption effect.
Description
Technical field
The present invention relates to a kind of continuous manufacture method of steeping, particularly relate to a kind of by the main base material that in mixture, uses high VA content, make the continuous finished product of obtained bubble can show preferable shock-absorbing performance, and can further make the preferable product of protection effect, have the manufacture method of the vibration-suction foamed plastic that can make the continuous characteristic of the better bubble of shock-absorbing effect.
Background technology
At present, plasthetics has been widely used in the daily living article, wherein, foam sponge product by the foamed plastic moulding, since have light weight, wear-resisting, the insulation, the insulation, and material characteristic such as shock-resistant, and extensively be applied to as the packing timber of body protection equipment, sports equipment protective gear or precision instrument and equipment etc.
The method of existing manufacturing vibration-suction foamed plastic, (for example be with base material and various additive component, filler, blowing agent, bridging agent etc.) mix to stir mutually after, under a predetermined temperature, carry out mixing compressing tablet again, with further foaming in particular mold, can make this vibration-suction foamed plastic.Wherein, employed base material raw material is different with additive raw material, except meeting has influence on the quality and production cost of the continuous finished product of terminal alveoli, also may cause the problem in the environmental protection.
The manufacture method of existing a kind of vibration-suction foamed plastic, it is with polyvinyl chloride (polyvinylchloride, abbreviate PVC as) and acrylonitrile-butadiene rubber (acrylonitrile butadienerubber, abbreviate NBR as) mixture as base material, be used the foaming of proper additive component again and form vibration-suction foamed plastic, that base material is carried out in foaming is crosslinked with adding sulphur promoter can be used the sulfur bridge agent in general its additive component, whereby, can produce bubble silk floss with shock-absorbing effect.
Though above-mentioned existing manufacture method is the manufacture method that generally adopts at present, still has following disappearance:
One, the polyvinyl chloride in the base material is easy to generate dioxin when the discarded object incineration process, under the demand of law and environmental protection, comprehensively the voice of forbidding this play that and fall, therefore, use this kind base material to have the disappearance of more not environmental protection.
Two, the used sulfur bridge agent of this existing manufacture method also can produce harmful substance with adding sulphur promoter in manufacture process, and jeopardizes processing procedure producers and consumer's health, and long-term use has carcinogenic risk easily.
Though aforementioned mixture with PVC and NBR also can use peroxide as bridging agent as the manufacture method of base material, makes vibration-suction foamed plastic,, still can form the problem in the environmental protection because the PVC of use material is still arranged in the base material.
The manufacture method of existing another kind of vibration-suction foamed plastic, then be with SIS (styrene-isoprene-styrene, abbreviate SIS as), or styrene-ethylene-propylene-styrene block copolymer (styrene-ethylene-propylene-styrene, abbreviate SEPS as), or styrene-ethylene-butadiene-styrene block copolymer (styrene-ethylene-butadiene-styrene, abbreviate SEBS as) be base material, and to be used peroxide be bridging agent with add other additive component, also can make vibration-suction foamed plastic behind foaming.But this kind manufacture method still has following disappearance:
One, above-mentioned SIS, SEPS and SEBS all is to belong to the higher high molecular polymer material of price,, has and has the higher shortcoming of manufacturing cost relatively as base material with this kind material.
When two, using SIS, SEPS and SEBS as base material, the temperature range that can produce optimal bridge formation reaction is very narrow, make bridging agent addition scope also less, if accurately do not control the consumption of bridging agent, be easy to cause building bridge excessively or the not enough result that builds bridge, and then but the adjustable that makes properties of product is relatively poor comparatively limited with range of application, makes this existing manufacture method have processing conditions and all narrower shortcoming of range of application relatively but have.
The manufacture method that also has another kind of existing vibration-suction foamed plastic, be to use general ethylene-vinyl acetate copolymer (ethyl-vinyl acetate copolymer, abbreviate EVA as) (general EVA VA content be 15%～30%) be the prepared vibration-suction foamed plastic of base material, though this kind manufacture method manufacturing cost is relatively low honest and clean, still has following disappearance:
With the lower EVA of general VA content is the prepared vibration-suction foamed plastic of base material, when carrying out the test relevant with shock-absorbing performance, find big, the bounce-back rate height of its deceleration, show this kind manufacture method have the product of being made have relatively need be bigger buffer distance just can reach the disappearance of predetermined shock-absorbing effect.
Rapid progress along with polymer science, at present existing several are material and the vibration-suction foamed plastic made through foaming with the high molecular polymer, the employed material of foamed products is variation very, different base materials often also has different character with the foamed products that prescription is made, and can cooperate and do different application, though the vibration-suction foamed plastic product that existing on the market at present various materials are made, but it is low-cost in current pursuit, the low pollution, environmental protection, under the prerequisites such as Highly-absorbing effect and easy processing, still have the active demand that continues to develop high-quality and the vibration-suction foamed plastic product that shock absorption is preferable.
This shows that the manufacture method of above-mentioned existing vibration-suction foamed plastic obviously still has inconvenience and defective, and demands urgently further being improved in manufacture method and use.For solving the problem of above-mentioned existence, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but do not see always that for a long time suitable design finished by development, and general manufacture method does not have appropriate method to address the above problem, this obviously is the problem that the anxious desire of relevant dealer solves.Therefore how to found a kind of manufacture method of new vibration-suction foamed plastic, real one of the current important research and development problem that belongs to, also becoming the current industry utmost point needs improved target.
Because the defective that the manufacture method of above-mentioned existing vibration-suction foamed plastic exists, the inventor is based on being engaged in this type of product design manufacturing abundant for many years practical experience and professional knowledge thereof, and the utilization of cooperation scientific principle, actively studied innovation, in the hope of founding a kind of manufacture method of new vibration-suction foamed plastic, can improve the manufacture method of general existing vibration-suction foamed plastic, make it have more practicality.Through constantly research, design, and after studying repeatedly and improving, create the present invention who has practical value finally.
Summary of the invention
The objective of the invention is to, overcome the defective of the manufacture method existence of existing vibration-suction foamed plastic, and a kind of manufacture method of the vibration-suction foamed plastic that can produce the foamed products with preferable shock-absorbing effect newly is provided, be very suitable for practicality.
The object of the invention to solve the technical problems is to adopt following technical scheme to realize.The manufacture method of a kind of vibration-suction foamed plastic that proposes according to the present invention, the manufacture method of this vibration-suction foamed plastic includes the following step: one, provide a prescription to mix stirring, provide a main base material component with high vinyl acetate content to mix mutually with an additive component and stir according to predetermined ratio to form a mixture; Two, mixing extrusion is carried out mixingly under a predetermined temperature to this mixture, finish and extrude to form a first idiosome after mixing again; Three, one step foaming moulding, just idiosome places a hot-platen, and through a scheduled time, in a predetermined temperature and predetermined pressure compacted under foaming, to make a foaming body; And four, make finished product, this foaming body is taken out from hot-platen, treat nature cooling after, can obtain finished product.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
The manufacture method of aforesaid vibration-suction foamed plastic, in the wherein said step 1, this main base material component is to select for use vinyl acetate content at 50%～90% the ethylene-vinyl acetate or the copolymer of ethylene-vinylacetate-vinyl alcohol.
The manufacture method of aforesaid vibration-suction foamed plastic, in the wherein said step 1, this main base material component is to select for use vinyl acetate content at 70%～90% the ethylene-vinyl acetate or the copolymer of ethylene-vinylacetate-vinyl alcohol.
The manufacture method of aforesaid vibration-suction foamed plastic in the wherein said step 1, is further added the inferior base material component of a predetermined ratio, forms this mixture to cooperate this main base material component and this additive component.
The manufacture method of aforesaid vibration-suction foamed plastic, in the wherein said step 1, this time base material component is to be selected from ethylene-vinyl acetate copolymer, polyethylene, polyolefin elastomer, polyvinyl chloride, acrylonitrile-butadiene rubber, SBR styrene butadiene rubbers, styrene-ethylene-butadiene-styrene block copolymer, thermoplastic elastomer (TPE), rubber, or its etc. combination.
The manufacture method of aforesaid vibration-suction foamed plastic, in the wherein said step 1, this additive component comprises a filler, a bridging agent, a blowing agent, and a blowing promotor.
The manufacture method of aforesaid vibration-suction foamed plastic, in the wherein said step 1, this additive component also comprises a bridge formation auxiliary agent.
The manufacture method of aforesaid vibration-suction foamed plastic, in the wherein said step 1, this additive component also comprises a demolding aids, and with total restatement of this mixture, the content of this demolding aids is 0～1.2wt%.
The manufacture method of aforesaid vibration-suction foamed plastic, in the wherein said step 1, total restatement with this mixture, the content of this main base material component is 20～95wt%, and the content of this time base material component is 0～70wt%, and the content of this filler is 0～50wt%, the content of this bridging agent is 0.5～4wt%, the content of this blowing agent is 1～8wt%, and the content of this blowing promotor is 0～8wt%, and content that should the bridge formation auxiliary agent is 0～5wt%.
The manufacture method of aforesaid vibration-suction foamed plastic, in the wherein said step 1, the filler of this additive component is to be selected from calcium carbonate, white cigarette, black smoke, talcum powder, clay, or its etc. combination.
The manufacture method of aforesaid vibration-suction foamed plastic, in the wherein said step 1, the blowing agent of this additive component is to be selected from azodicarbonamide foaming agent, disulfonyl hydrazide diphenyl ether, N, N-dinitroso five methine tetramines, or its etc. combination.
The manufacture method of aforesaid vibration-suction foamed plastic, in the wherein said step 1, the blowing promotor of this additive component is to be selected from stearate, metal oxide, urea derivative, or its etc. combination.
The manufacture method of aforesaid vibration-suction foamed plastic, in the wherein said step 1, the bridge formation auxiliary agent of this additive component is to be selected from TAC, iso-cyanuric acid triallyl ester, trimethylol propane trimethyl acrylic acid, or its etc. combination.
The manufacture method of aforesaid vibration-suction foamed plastic, the bridging agent of wherein said additive component is to use cumyl peroxide.
The manufacture method of aforesaid vibration-suction foamed plastic, in the wherein said step 2, this mixture is to carry out mixingly in 100 ℃～140 ℃ temperature range, and mixing time is at least 6 minutes.
The manufacture method of aforesaid vibration-suction foamed plastic, in the wherein said step 3, this first idiosome is the temperature at 150 ℃～180 ℃, and 130～180kg/cm
2Pressure limit, carry out 15 minutes～40 minutes moulding foaming.
The manufacture method of aforesaid vibration-suction foamed plastic, it also comprises a step 5 after step 4, and this step 5 is to cut, and on demand this finished product is cut the pattern that is trimmed to a reservation shape and size.
The present invention compared with prior art has tangible advantage and beneficial effect.As known from the above, for achieving the above object, the manufacture method of vibration-suction foamed plastic of the present invention includes the following step:
One, provide a prescription to mix stirring, provide a main base material component with high VA content to mix mutually and stir according to predetermined ratio and form a mixture with an additive component, wherein, this main base material component is to select for use VA content at 50%～90% the ethylene-vinyl acetate or the copolymer of ethylene-vinylacetate-vinyl alcohol;
Two, mixing extrusion, in 100 ℃～140 ℃ temperature range, this mixture is carried out mixing, and the mixing time of carrying out be at least 6 minutes, finish and extrude to form a first idiosome after mixing again;
Three, one step foaming moulding, just idiosome places a hot-platen, and through a scheduled time, in a predetermined temperature and predetermined pressure compacted under foaming, to make a foaming body;
Four, make finished product, this foaming body taken out from hot-platen, treat nature cooling after, can obtain finished product.
By technique scheme, the manufacture method of vibration-suction foamed plastic of the present invention has following advantage and beneficial effect at least: the present invention cooperates above-mentioned method for making, select for use VA content at 50%～90% ethylene-vinyl acetate copolymer as the prepared foamed products of main base material, because the EVA of high VA content, its glass transition temperature Tg can drop on 25 ℃～-20 ℃ scope.So, in this temperature range,, be easy to generate the variation of phase if when running into external impacts, external impact kinetic energy is converted into potential energy fast stores, at leisure the potential energy of its storage is discharged again, so can show preferable shock-absorbing effect.Therefore, can make bubble silk floss by the material characteristic of high VA content material, make the present invention have the advantage that can make the preferable vibration-suction foamed plastic of shock absorption with preferable buffering shock-absorbing characteristic.
In sum, the present invention is the manufacture method of relevant a kind of vibration-suction foamed plastic, comprise the following step: provide a main base material component with high VA content to mix mutually and stir according to predetermined ratio to form a mixture with an additive component, then, under predetermined temperature, carry out mixing to this mixture, finish and extrude to form a first idiosome after mixing again, just idiosome places a hot-platen, and through a scheduled time, in a predetermined temperature and forming under the pressure foaming, make a foaming body, this foaming body is taken out from hot-platen, treat nature cooling after, just can obtain finished product.By the main base material that in this mixture, uses high VA content, make the continuous finished product of prepared bubble can show preferable shock-absorbing performance, and can further make the preferable product of protection effect, the characteristic that manufacture method of the present invention is had to make the better bubble silk floss of shock-absorbing effect.The present invention has above-mentioned plurality of advantages and practical value, no matter it all has bigger improvement on manufacture method or function, obvious improvement is arranged technically, and produced handy and practical effect, and the manufacture method of more existing vibration-suction foamed plastic has the outstanding effect of enhancement, thereby being suitable for practicality more, and having the extensive value of industry, really is a new and innovative, progressive, practical new design.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of specification, and for above-mentioned and other purposes, feature and advantage of the present invention can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.
Description of drawings
Fig. 1 is a flow chart of manufacture method one preferred embodiment of vibration-suction foamed plastic of the present invention.
Fig. 2 cooperates the shock-absorbing performance method of testing to measure one respectively to drop hammer at the positional value of different time points and the curve synoptic diagram of deceleration value.
The specific embodiment
Reach technological means and the effect that predetermined goal of the invention is taked for further setting forth the present invention, below in conjunction with accompanying drawing and preferred embodiment, its specific embodiment of manufacture method, manufacture method, step, feature and the effect thereof of the vibration-suction foamed plastic that foundation the present invention is proposed, describe in detail as after.
Seeing also shown in Figure 1ly, is the flow chart of manufacture method one preferred embodiment of vibration-suction foamed plastic of the present invention.The manufacture method of the vibration-suction foamed plastic of preferred embodiment of the present invention comprises the following step:
This time base material component, be to be selected from ethylene-vinyl acetate copolymer (its VA content is to be 15～30%), polyethylene (polyethylene, abbreviate PE as), polyolefin elastomer (polyolefinelastomer, abbreviate POE or Engage as), polyvinyl chloride (PVC), acrylonitrile-butadiene rubber (NBR), SBR styrene butadiene rubbers (styrene butadiene, abbreviate SBR as), styrene-ethylene-butadiene-styrene block copolymer (SEBS), thermoplastic elastomer (TPE) (ThermoplasticElastomer, be called for short TPE), rubber (rubber), or its etc. combination.
This additive component comprises a filler, a bridging agent, a blowing agent, a blowing promotor, and a bridge formation auxiliary agent, wherein, this bridge formation auxiliary agent can be selected to use or do not use according to reaction requirement, normally in the time will quickening to build bridge the speed of reacting, can be used this bridge formation auxiliary agent.
Wherein, this filler is to be selected from calcium carbonate, white cigarette, black smoke, talcum powder, clay, or its etc. combination.This blowing agent, be to be selected from azodicarbonamide foaming agent (Azodicarbonamide blowing agent, abbreviate the AC blowing agent as), disulfonyl hydrazide diphenyl ether (oxybis benzene sulfonylhydrazide, abbreviate OBSH as), N, N-dinitroso five methine tetramine (N, N-dinitrosopentam ethylene tetramine abbreviates DPT as), or its etc. combination.This blowing promotor is to be selected from stearate, metal oxide, urea derivative, or its etc. combination.This bridging agent is to use cumyl peroxide (Dicumyl Peroxide abbreviates DCP as).This bridge formation auxiliary agent is to be selected from TAC (triallyl cyanurate, abbreviate TAC as), iso-cyanuric acid triallyl ester (triallyl isocyanurate, abbreviate TAIC as), trimethylol-propane trimethacrylate (trimethyrol propanetrimethacrylate, abbreviate TMPTMA as), or its etc. combination, though only can select aforesaid wherein a kind of composition to use on the general practice, also can mix several compositions and use as the bridge formation auxiliary agent.
And total restatement with this mixture, the content of this main base material component is preferably 20～95wt%, the content of this time base material component is preferably 0～70wt%, the content of this filler is preferably 0～50wt%, the content of this bridging agent is preferably 0.5～4wt%, the content of this blowing agent is preferably 1～8wt%, and the content of this blowing promotor is preferably 0～8wt%, and the content of this bridge formation auxiliary agent is preferably 0～5wt%.
What deserves to be mentioned is, for convenience the finished product behind the foaming is taken out, in this additive, also can add and use a demolding aids, and total restatement with this mixture, the content of this demolding aids is preferably 0～1.2wt%, in this preferred embodiment, be to use stearic acid (Stearic acid) as this demolding aids.
What deserves to be explained is, because the EVA of high VA content, its glass transition temperature Tg can drop on 25 ℃～-20 ℃ scope, so in this temperature range, if when meeting external impacts, be easy to generate the variation of phase, external impact kinetic energy is converted into potential energy fast to store, at leisure the potential energy of its storage is discharged again, thus can show preferable shock-absorbing effect, and can be again and different inferior base material component phase mix and match, make product with different soft and hard degree, reach suitable damping effect, that is to say, because the special molecular structure of the main base material component of high VA content, has higher energy loss value, make the external energy of its energy transient absorption, and then can convert the heat dissipation fast to, reach the effect of height shock-absorbing.
In addition, when the main base material component that only uses high VA content mixes mutually with this additive component, though can make the continuous finished product of the bubble of being made have splendid shock-absorbing effect, but consider cost of material and different application demands, still can be at different application targets, the different inferior base material component of collocation blending is to keep under the condition of preferable economic benefit, to make the bubble silk floss that meets application demand and still have suitable damping capaicty.
[concrete example and comparative example]
Below make the concrete example of this vibration-suction foamed plastic with regard to three according to manufacture method of the present invention respectively, with a comparative example of making this vibration-suction foamed plastic according to existing manufacture method be example, specify characteristic with finished product that method for making of the present invention is made.
Wherein, this vibration-suction foamed plastic shock-absorbing effect is comprehensively to judge according to continuous deceleration value (G value), bounce-back rate and three measurements of buffer distance of prepared bubble.
All do not use the bridge formation auxiliary agent in following concrete example and the comparative example, but, all be added with the demolding aids of equivalent and identical component, therefore, can not have influence on judgement the shock-absorbing effect of these concrete examples and comparative example for making things convenient for the finished product demoulding.
Wherein, Levaprene 8000 and POLYPRENE 1315 are VA content at 80% EVA, and the difference of the two is its base material component difference of other 20%.(other compositions of Levaprene8000 are ethene, and other compositions of POLYPRENE 1315 are ethene and vinyl alcohol.)
＜shock-absorbing performance method of testing and standard 〉
Deceleration value (G value) is a foundation
SATRA TM142Standard method test, in addition, also can use ASTM F1446, ASTM F1937, ASTM F1614, ASTM F1631, and test such as CNS 3902 standard methods such as grade.
The bounce-back rate also is a foundation
SATRA TM142The result of standard method test calculate and get, but also can adopt the standard method measurement of ASTM D2632 or CNS3561.
Buffer distance also be with
SATRA TM142Standard method test.
＜SATRA TM142 method of testing explanation 〉
(1) specimen preparation: prepared finished product is cut into length and width is at least 89mm, and thickness is at least the test piece of 16mm, and under 20 ± 2 ℃ environment, leave standstill 24 hours after, test again.
(2) testing procedure: use the SATRA testing equipment, with a weight is that dropping hammer of 8.5 ± 0.01Kg is placed on the position apart from this test test piece one top face 50 ± 0.5mm, this is dropped hammer with this test piece of freely falling body mode drop impact, and start simultaneously one in order to the sensor and that measures this position of dropping hammer in order to measure the sensor of this deceleration value of dropping hammer, please cooperate and consult (wherein, a shown in Figure 2
sBe the deceleration value of dropping hammer, H
sBe the placement height that drops hammer, H
0Top side location for this test test piece), but cooperate the register system of continuous synchronization record that positional value and the deceleration value that the different time points amount gets plotted a position curve A and a projectile deceleration history B respectively again, draw maximum deceleration value a, maximum cushioning distance b and the first bounce height c of this test piece again according to the result of this two curve.Each test piece is repeated five aforesaid dropping hammer fall step, fall step should be at interval 2～3 seconds at every turn, if the error of the last maximum deceleration value that is measured for three times is at 5m/s
2In, and the error of maximum cushioning distance then can be finished test in 0.5mm.Otherwise must repeat to till continuous three times measuring value error is all in scope.Wherein, the bounce-back rate is to get according to the first bounce high computational, and buffer distance is except can also representing by percentage directly with maximum cushioning distance b value (mm) expression:
Though, can reach the purpose that reduces deceleration value (G value) with the method that reduces finished product material hardness, but need relatively increase finished product thickness enough buffer distances are provided, after increasing thickness, can make protective liner too heavy on the contrary, and cause inconvenience in the use, so also need consider its bounce-back rate in the lump in the practical application.
* annotate 1: the consumption of each raw material is to represent with weight portion in the said mixture prescription.
[result]
Above-mentioned concrete example one, example two, example three all is to adopt the EVA of high VA content (VA content is 80%) (Levaprene 8000 and POLYPRENE 1315) as main base material component, its bubble silk floss of making then, except the G value of concrete example two is hanged down, concrete example one, concrete example three is close with the G value size of comparative example one, but, further relatively its bounce-back rate and buffer distance then can be found out again, concrete example one, two, three bounce-back rate all is＜15%, and the content of the main base material component of high VA content is high more, its bounce-back rate value is low more, buffer distance also has similar result, review with general EVA (VA content 15%～30%) and PE is the comparative example one of base material foaming, its bounce-back rate value is up to 20%, buffer distance also has 12.5mm, because these binomial data are high more, the demonstration material must be made thicker thickness and just can reach good shock-absorbing effect, and manufacture method of the present invention is by the base material that uses high VA content in base material, will material do not make thicker thickness and just can reach good shock-absorbing effect, therefore the continuous shock-absorbing performance of bubble can be promoted really, and purpose of the present invention and effect can be reached.
Conclude above-mentionedly, the manufacture method of vibration-suction foamed plastic of the present invention can be obtained following effect and advantage, so can reach purpose of the present invention really:
One, manufacture method of the present invention is by using the base material of high VA content to carry out foaming in this mixture, the continuous confirmation after tested of prepared bubble has better shock-absorbing effect, and the different inferior base material component of further arranging in pairs or groups shows desired shock-absorbing effect, when being applied to product, also can bring into play better performance, the continuous shock-absorbing effect of the obtained bubble of the present invention can be employed as various protective gears or packing timber, for example, can further make knee-pad again, the safety cap liner, the packing timber of car mat and electronic equipment and equipment, can both provide better protection and packing effect by its excellent shock-absorbing characteristic, the present invention be had to improve the advantage of steeping continuous shock-absorbing performance.
Two, the employed bridging agent DCP of manufacture method of the present invention is a kind of peroxide bridging agent, be enough to the cross-linking reaction that in foaming process, provides suitable, and can not being formed with harmful substances in processing procedure, the peroxide bridging agent is not discharged in the working environment, do not have carcinogenic danger yet, make manufacture method of the present invention have the advantage of safety of processing procedure relatively.
Three, with respect to the existing bubble silk floss that uses SIS, SEPS, SEBS base material to be made, the base material of high VA content of the present invention has more cheap cost of material, makes manufacture method of the present invention have the advantage of saving manufacturing cost relatively.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be not break away from the technical solution of the present invention content, according to technical spirit of the present invention to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solution of the present invention.
Claims (17)
1, a kind of manufacture method of vibration-suction foamed plastic is characterized in that the manufacture method of this vibration-suction foamed plastic includes the following step:
One, provides a prescription to mix stirring, provide a main base material component with high vinyl acetate content to mix mutually and stir according to predetermined ratio to form a mixture with an additive component;
Two, mixing extrusion is carried out mixingly under a predetermined temperature to this mixture, finish and extrude to form a first idiosome after mixing again;
Three, one step foaming moulding, just idiosome places a hot-platen, and through a scheduled time, in a predetermined temperature and predetermined pressure compacted under foaming, to make a foaming body; And
Four, make finished product, this foaming body taken out from hot-platen, treat nature cooling after, can obtain finished product.
2, the manufacture method of vibration-suction foamed plastic as claimed in claim 1, it is characterized in that in the wherein said step 1 that this main base material component is to select for use vinyl acetate content at 50%～90% the ethylene-vinyl acetate or the copolymer of ethylene-vinylacetate-vinyl alcohol.
3, the manufacture method of vibration-suction foamed plastic as claimed in claim 2, it is characterized in that in the wherein said step 1 that this main base material component is to select for use vinyl acetate content at 70%～90% the ethylene-vinyl acetate or the copolymer of ethylene-vinylacetate-vinyl alcohol.
4, the manufacture method of vibration-suction foamed plastic as claimed in claim 2 is characterized in that in the wherein said step 1, further adds the inferior base material component of a predetermined ratio, forms this mixture to cooperate this main base material component and this additive component.
5, the manufacture method of vibration-suction foamed plastic as claimed in claim 4, it is characterized in that in the wherein said step 1, this time base material component is to be selected from ethylene-vinyl acetate copolymer, polyethylene, polyolefin elastomer, polyvinyl chloride, acrylonitrile-butadiene rubber, SBR styrene butadiene rubbers, styrene-ethylene-butadiene-styrene block copolymer, thermoplastic elastomer (TPE), rubber, or its etc. combination.
6, the manufacture method of vibration-suction foamed plastic as claimed in claim 5 is characterized in that in the wherein said step 1 that this additive component comprises a filler, a bridging agent, a blowing agent, and a blowing promotor.
7, the manufacture method of vibration-suction foamed plastic as claimed in claim 6 is characterized in that in the wherein said step 1 that this additive component also comprises a bridge formation auxiliary agent.
8,, it is characterized in that in the wherein said step 1, this additive component also comprises a demolding aids, and with total restatement of this mixture, the content of this demolding aids is 0～1.2wt% as the manufacture method of claim 6 or 7 described vibration-suction foamed plastics.
9, the manufacture method of vibration-suction foamed plastic as claimed in claim 7, it is characterized in that in the wherein said step 1, total restatement with this mixture, the content of this main base material component is 20～95wt%, and the content of this time base material component is 0～70wt%, and the content of this filler is 0～50wt%, the content of this bridging agent is 0.5～4wt%, the content of this blowing agent is 1～8wt%, and the content of this blowing promotor is 0～8wt%, and the content of this bridge formation auxiliary agent is 0～5wt%.
10, the manufacture method of vibration-suction foamed plastic as claimed in claim 7 is characterized in that in the wherein said step 1, and the filler of this additive component is to be selected from calcium carbonate, white cigarette, black smoke, talcum powder, clay, or its etc. combination.
11, the manufacture method of vibration-suction foamed plastic as claimed in claim 7, it is characterized in that in the wherein said step 1, the blowing agent of this additive component is to be selected from azodicarbonamide foaming agent, disulfonyl hydrazide diphenyl ether, N, N-dinitroso five methine tetramines, or its etc. combination.
12, the manufacture method of vibration-suction foamed plastic as claimed in claim 7 is characterized in that in the wherein said step 1, and the blowing promotor of this additive component is to be selected from stearate, metal oxide, urea derivative, or its etc. combination.
13, the manufacture method of vibration-suction foamed plastic as claimed in claim 7, it is characterized in that in the wherein said step 1, the bridge formation auxiliary agent of this additive component is to be selected from TAC, iso-cyanuric acid triallyl ester, trimethylol propane trimethyl acrylic acid, or its etc. combination.
14, the manufacture method of vibration-suction foamed plastic as claimed in claim 7 is characterized in that the bridging agent of wherein said additive component is to use cumyl peroxide.
15, the manufacture method of vibration-suction foamed plastic as claimed in claim 1 is characterized in that in the wherein said step 2, and this mixture is to carry out mixingly in 100 ℃～140 ℃ temperature range, and mixing time is at least 6 minutes.
16, the manufacture method of vibration-suction foamed plastic as claimed in claim 15 is characterized in that in the wherein said step 3, and this first idiosome is the temperature at 150 ℃～180 ℃, and 130～180kg/cm
2Pressure limit, carry out 15 minutes～40 minutes moulding foaming.
17, the manufacture method of vibration-suction foamed plastic as claimed in claim 1 is characterized in that it also comprises a step 5 after step 4, and this step 5 is to cut, and on demand this finished product is cut the pattern that is trimmed to a reservation shape and size.
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| CN2007100976697A CN101293386B (en) | 2007-04-27 | 2007-04-27 | Process for manufacturing vibration-suction foamed plastic |
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| CN2007100976697A CN101293386B (en) | 2007-04-27 | 2007-04-27 | Process for manufacturing vibration-suction foamed plastic |
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| CN101293386A true CN101293386A (en) | 2008-10-29 |
| CN101293386B CN101293386B (en) | 2011-05-25 |
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Cited By (7)
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| CN102558659A (en) * | 2010-12-21 | 2012-07-11 | 深圳市沃尔核材股份有限公司 | Halogen-free flame retardant olefin foam body and preparation method thereof |
| CN102702642A (en) * | 2012-05-29 | 2012-10-03 | 晋江市诚长鞋材有限公司 | EVA (Ethylene-Vinyl Acetate Copolymer) foaming and damping material and preparation method thereof |
| CN102816406A (en) * | 2012-09-04 | 2012-12-12 | 苏州伟伦运动休闲用品有限公司 | High-elasticity midsole and production method thereof |
| CN104231419A (en) * | 2014-10-16 | 2014-12-24 | 中国皮革和制鞋工业研究院 | High shock-absorbing ethylene-vinyl acetate rubber foam material for shoes and preparation method of material |
| CN105367964A (en) * | 2014-08-08 | 2016-03-02 | 镕利兴业股份有限公司 | Composition for forming shock-absorbing sponge |
| CN105623062A (en) * | 2014-10-29 | 2016-06-01 | 中国石油化工股份有限公司 | EVA foaming material with high-temperature low compression permanent deformation and preparation method thereof |
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| CN105328850B (en) * | 2014-08-07 | 2017-10-13 | 镕利兴业股份有限公司 | The preparation method of vibration-suction foamed plastic |
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| DE2023594B2 (en) * | 1969-05-15 | 1973-02-08 | Nagoya Rubber Co Ltd , Nagoya (Japan) | PROCESS AND FORM FOR MANUFACTURING AN OBJECT FROM EXPANDED RUBBER OR PLASTIC |
| US4459249A (en) * | 1982-01-22 | 1984-07-10 | Inoue Mtp Kabushiki Kaisha | Method of manufacturing a foamed protective and decorative molding for an automobile |
| JPH078505B2 (en) * | 1986-07-30 | 1995-02-01 | 株式会社イノアックコ−ポレ−ション | Method for producing plastic foam |
| CN1038758C (en) * | 1992-09-18 | 1998-06-17 | 安顺企业股份有限公司 | Hard polyvinyl-chloride foam material |
| CN1101318A (en) * | 1993-10-06 | 1995-04-12 | 邱玉玲 | Manufacture of middle shoe sole |
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| CN102558659B (en) * | 2010-12-21 | 2014-01-08 | 深圳市沃尔核材股份有限公司 | Halogen-free flame retardant olefin foam body and preparation method thereof |
| CN102702642A (en) * | 2012-05-29 | 2012-10-03 | 晋江市诚长鞋材有限公司 | EVA (Ethylene-Vinyl Acetate Copolymer) foaming and damping material and preparation method thereof |
| CN102816406A (en) * | 2012-09-04 | 2012-12-12 | 苏州伟伦运动休闲用品有限公司 | High-elasticity midsole and production method thereof |
| CN105367964A (en) * | 2014-08-08 | 2016-03-02 | 镕利兴业股份有限公司 | Composition for forming shock-absorbing sponge |
| CN105367964B (en) * | 2014-08-08 | 2017-11-10 | 镕利兴业股份有限公司 | For forming the constituent of vibration-suction foamed plastic |
| CN104231419A (en) * | 2014-10-16 | 2014-12-24 | 中国皮革和制鞋工业研究院 | High shock-absorbing ethylene-vinyl acetate rubber foam material for shoes and preparation method of material |
| CN104231419B (en) * | 2014-10-16 | 2017-07-07 | 中国皮革和制鞋工业研究院 | Damping ethylene vinyl acetate rubber pange material for shoes high and preparation method thereof |
| CN105623062A (en) * | 2014-10-29 | 2016-06-01 | 中国石油化工股份有限公司 | EVA foaming material with high-temperature low compression permanent deformation and preparation method thereof |
| CN105885316A (en) * | 2015-01-26 | 2016-08-24 | 镕利兴业股份有限公司 | Composition for forming shock absorption foamed plastic |
| CN105885316B (en) * | 2015-01-26 | 2018-05-22 | 镕利兴业股份有限公司 | For forming the constituent of vibration-suction foamed plastic |
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| CN101293386B (en) | 2011-05-25 |
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