CN105367964B - For forming the constituent of vibration-suction foamed plastic - Google Patents
For forming the constituent of vibration-suction foamed plastic Download PDFInfo
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- CN105367964B CN105367964B CN201410387203.0A CN201410387203A CN105367964B CN 105367964 B CN105367964 B CN 105367964B CN 201410387203 A CN201410387203 A CN 201410387203A CN 105367964 B CN105367964 B CN 105367964B
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Abstract
A kind of constituent for being used to form vibration-suction foamed plastic, includes a kind of base material component, foaming agent and bridging agent.The base material component includes main base material and secondary base material, and the main base material includes the copolymer containing Vinyl Acetate Monomer unit and tertiary ethylene carbonate monomeric unit, and this time base material includes polymer.The present invention is used to form the vibration-suction foamed plastic that the constituent of vibration-suction foamed plastic is subsequently formed, and in humidity or has and is not likely to produce hydrolysis in the environment of water.
Description
Technical field
It is used to form the continuous constituent of bubble the present invention relates to a kind of, more particularly to a kind of group for being used to form vibration-suction foamed plastic
Into thing.
Background technology
Plastic products have been widely used in daily living article, and the bubble of plastic foamed shaping is continuous because having light weight, resistance to
The material characteristics such as mill, insulation, impact resistance, are suitable as vibration absorptive material, so being often applied to body protection equipment, sports equipment
Packing timber of protective gear or precision instrument and equipment etc..
TaiWan, China patent publication No. 200842154 discloses a kind of constituent for being used to form vibration-suction foamed plastic, includes one kind
Main base material component and a kind of additive component, the main base material component are selected from vinylacetate (vinyl acetate, abbreviation
VA) monomer unit content scope is 50%~90% ethylene-vinyl acetate copolymer (ethylene-vinyl acetate
) or ethylene-vinylacetate-vinyl alcohol copolymer (ethylene-vinyl acetate-vinyl alcohol copolymer
Copolymer), the additive component includes filler, bridging agent, foaming agent, blowing promotor, bridge formation auxiliary agent, and demolding aids.
However, the vibration-suction foamed plastic formed using aforementioned component thing, if in humidity or in the environment of having water, hydrolysis is easily produced, is caused
The vibration-suction foamed plastic shock-absorbing performance can be greatly decreased.
Therefore, a kind of constituent how is found, its vibration-suction foamed plastic subsequently formed is in humidity or has in the environment of water not
Hydrolysis is also easy to produce, turns into the important topic studied at present.
The content of the invention
It is not easy it is an object of the invention to provide a kind of vibration-suction foamed plastic subsequently formed in humidity or have in the environment of water
Produce the constituent for being used to be formed vibration-suction foamed plastic of hydrolysis.
The present invention is used for the constituent for forming vibration-suction foamed plastic, includes a kind of base material component, foaming agent and bridging agent.
The base material component includes main base material and secondary base material, and the main base material includes containing Vinyl Acetate Monomer unit and tertiary carbon
The copolymer of vinyl acetate (vinyl versatate) monomeric unit, this time base material includes polymer, and the polymer is to be selected from
Ethylene-vinyl acetate copolymer, polyethylene (polyethylene), polystyrene (polystyrene), styrene-ethylene-
Butadiene-styrene block copolymer (styrene-ethylene-butadiene-styrene block copolymer, letter
Claim SEBS), styrene-isoprene-butadiene-styrene block copolymer (styrene-isoprene-butadiene-
Styrene block copolymer, abbreviation SIBS), polyolefin elastomer (polyolefin elastomer, abbreviation POE),
Acrylonitrile-butadiene rubber (nitrile-butadiene rubber, abbreviation NBR), SBR styrene butadiene rubberses
(styrene-butadiene rubber, abbreviation SBR), thermoplastic elastomer (TPE) (thermoplastic elastomer, referred to as
), or foregoing combination TPE.
The beneficial effects of the present invention are：The main base material includes that Vinyl Acetate Monomer unit and versatic acid ethene should be contained
The copolymer of ester monomer unit, and in the environment of making the vibration-suction foamed plastic that constituent of the present invention is subsequently formed in humidity or having water,
The phenomenon for not tending to have hydrolysis produces, and further allows the shock-absorbing performance of the vibration-suction foamed plastic not to be greatly decreased.
It will be described in detail below with regard to present invention：
[main base material]
The main base material includes the copolymer containing Vinyl Acetate Monomer unit and tertiary ethylene carbonate monomeric unit.
It is preferred that it is to be selected to be somebody's turn to do the copolymer containing Vinyl Acetate Monomer unit and tertiary ethylene carbonate monomeric unit
Vinylacetate-ethylene-vinyl versatate copolymer (vinyl acetate-ethylene-vinyl versatate
Copolymer), vinylacetate-vinyl versatate copolymer (vinyl acetate-vinyl versatate
Copolymer), vinylacetate-tertiary ethylene carbonate-acrylate copolymer (vinyl acetate-vinyl
Versatate-acrylate copolymer), or foregoing combination.
[secondary base material]
It is preferred that the polymer of this base material is 10~35% selected from Vinyl Acetate Monomer unit content range
Ethylene-vinyl acetate copolymer, the ethylene-vinyl acetate that Vinyl Acetate Monomer unit content range is 60~90% are total to
Polymers, polyethylene, polystyrene, styrene ethylene butadiene-styrene block copolymer, styrene-isoprene-fourth two
Alkene-styrene block copolymer, or foregoing combination.
[base material component]
The base material component includes main base material and secondary base material, it is preferred that counted by 100 parts by weight of the gross weight of the base material component,
The content range of the main base material is 40~95 parts by weight, and the content range of this base material is 5~60 parts by weight.More preferably, the master
The content range of base material is 45~75 parts by weight, and the content range of this base material is 25~55 parts by weight.
[foaming agent]
It is preferred that the foaming agent is selected from azodicarbonamide (azodicarbonamide, abbreviation ADCA), 4,4'-
OBSH (4,4'-oxydibenzenesulfonyl hydrazide, abbreviation OBSH), nitrogen, nitrogen-dinitroso five
Methine tetramine (N, N-dinitrosopentamethylene tetramine, abbreviation DPT), or foregoing combination.In this hair
In bright specific embodiment, the foaming agent is azodicarbonamide.
It is preferred that being counted by 100 parts by weight of the gross weight of the base material component, the content range of the foaming agent is 1~8 weight
Part.
[bridging agent]
It is preferred that the bridging agent is selected from cumyl peroxide (dicumyl peroxide), two (tributyl mistakes
Oxygen isopropyl) benzene [di (t-butylperoxyisopropyl) benzene], 4,4- bis- (tributyl peroxidating) butyl valerate
[n-butyl-4,4-di (t-butylperoxy) valerate], or foregoing combination.In a particular embodiment of the present invention,
The bridging agent is cumyl peroxide or two (tributyl peroxy isopropyl base) benzene.
It is preferred that being counted by 100 parts by weight of the gross weight of the base material component, the content range of the bridging agent is 0.1~3 weight
Part.
[additive]
It is preferred that the constituent that the present invention is used to be formed vibration-suction foamed plastic also includes additive.
The additive be selected from any existing reagent for being suitable to addition in the constituent continuous for forming bubble, it is preferred that
The additive is selected from filler, plasticizer, bridge formation auxiliary agent, blowing promotor, or foregoing combination.
It is preferred that being counted by 100 parts by weight of the gross weight of the base material component, the content range of the additive is 0.1~83 weight
Measure part.
It is described in detail individually below for (a) filler, (b) plasticizer, (c) bridge formation auxiliary agent and (d) blowing promotor：
(a) filler：
It is preferred that the filler is to be selected from calcium carbonate (CaCO3), white cigarette, black smoke, talcum powder, clay, or foregoing group
Close.In a particular embodiment of the present invention, the filler is calcium carbonate or talcum powder.
It is preferred that being counted by 100 parts by weight of the gross weight of the base material component, the content range of the filler is 0.1~58 weight
Measure part.
(b) plasticizer：
It is preferred that the plasticizer is that (phenyl alkylsulfonate, name of product are selected from phenyl alkylsulf
Mesamoll), the different monooctyl ester of 1,2- cyclohexane dicarboxylic acids [bis (2-ethylhexyl) cyclohexane-1,2-
Dicarboxylate, abbreviation DHEH], Di-2-ethylhexyl terephthalate [bis (2-ethylhexyl)-terephthalate, letter
Claim DOTP], diisooctyl phthalate [bis (2-ethylhexyl) phthalate abbreviations DOP], or foregoing combination.
In the specific embodiment of the present invention, the plasticizer is phenyl alkylsulf.
It is preferred that being counted by 100 parts by weight of the gross weight of the base material component, the content range of the plasticizer is 0.1~15 weight
Measure part.
(c) bridge formation auxiliary agent：
It is preferred that the bridge formation auxiliary agent is selected from triallyl cyanurate (triallyl cyanurate, abbreviation
TAC), iso-cyanuric acid triallyl ester (triallyl isocyanurate, abbreviation TAIC), trimethylol propane trimethyl
Acrylate (trimethylolpropane trimethacrylate, abbreviation TMPTMA), or foregoing combination.In the present invention
Specific embodiment in, the bridge formation auxiliary agent is trimethylol-propane trimethacrylate.
It is preferred that being counted by 100 parts by weight of the gross weight of the base material component, the content range of the bridge formation auxiliary agent is 0.1~2 weight
Measure part.
(d) blowing promotor：
It is preferred that the blowing promotor is aoxidized selected from stearate [such as zinc stearate (zinc stearate)], metal
Thing [such as zinc oxide (ZnO)], urea derivative, or foregoing combination.In a particular embodiment of the present invention, the blowing promotor is
Zinc oxide.
It is preferred that being counted by 100 parts by weight of the gross weight of the base material component, the content range of the blowing promotor is 0.1~8 weight
Measure part.
[being used for the constituent for forming vibration-suction foamed plastic]
The present invention be used for formed vibration-suction foamed plastic constituent be by the base material component, the foaming agent, the bridging agent and this add
It is made after adding agent to mix and be stirred.
The constituent that the present invention is used to be formed vibration-suction foamed plastic can be applied to prepare vibration-suction foamed plastic, and it is to carry out the constituent
After idiosome at the beginning of mixing and extrusion are made one, the first idiosome is set to carry out foaming again, you can to obtain vibration-suction foamed plastic.
Embodiment
The present invention will be described further with regard to following examples, however, it should be noted that the embodiment is only to illustrate
It is used, and is not necessarily to be construed as the limitation that the present invention is implemented.
<Embodiment 1~9, comparative example 1>
Prepare the constituent for forming vibration-suction foamed plastic
According to needed for table 1 below (each numbering represent composition) with table 2 (composition of selection and each component content) selection composition and
Content, and mix after all the components are stirred, that is, embodiment 1~9 and the group for being used to be formed vibration-suction foamed plastic of comparative example 1 is made
Into thing.
Table 1：
Table 2：
<Application examples 1~9, compare application examples 1>
Prepare vibration-suction foamed plastic
Step (1)：By the constituent for being used to be formed vibration-suction foamed plastic of the embodiment 1~9 and comparative example 1, respectively at 130 DEG C
At a temperature of, carry out after being kneaded 10 minutes, then extrusion is carried out, idiosome at the beginning of forming one.
Step (2)：The first idiosome is placed in into a hot-platen, and (temperature is set in 170 DEG C, and pressure is set in 150kg/
cm2), the foaming of progress 20 minutes, a foaming body is formed, and the foaming body is taken out from the hot-platen, treat that nature is cold
But after, you can obtain application examples 1~9 (being formed respectively by embodiment 1~9) application examples 1 (being formed by comparative example 1) compared with
Vibration-suction foamed plastic.
<The shock-absorbing performance test of vibration-suction foamed plastic>
Prepare vibration-suction foamed plastic sample (drying sample and damp sample)
First by vibration-suction foamed plastic of the application examples 1~9 compared with obtained by application examples 1 make length, width and height be respectively 180cm,
After 90cm, 25mm vibration-suction foamed plastic sample, the vibration-suction foamed plastic sample is put in the environment of 23 DEG C, relative humidity 50%
Put 24 hours, you can drying sample is made；If the vibration-suction foamed plastic sample is put in the environment of 70 DEG C, saturated humidity
Put 72 hours, then damp sample can be made.
Shock-testing
An installation will be individually placed to as the drying sample obtained by the application examples 1 compared with of application examples 1~9 and damp sample
On shock testing machine above the impact detector, and 5kg impact heads are used, with 50J energy impact samples, then detectd by reading impact
The numerical value for surveying device analyzes shock-absorbing effect, when numerical value is lower, represents impact energy more (i.e. shock absorptions that sample can absorb
Can be better).In addition, calculate numerical value increasing degree of the damp sample relative to drying sample also according to following formula I.
Formulas I：
Damp sample relative to drying sample numerical value increasing degree (%)=
[(damp sample numerical value-drying sample numerical value)/drying sample numerical value] × 100
And the numerical value that the drying sample of application examples 1 is read with damp sample compared with of application examples 1~9, and moist sample
Condition is distinguished as shown in table 3 below for the numerical value increasing degree of drying sample.
Table 3：
As shown in Table 3, when the main base material in constituent includes vinylacetate-ethylene-vinyl versatate copolymer, vinegar
The embodiment 1 of vinyl acetate-vinyl versatate copolymer or vinylacetate-tertiary ethylene carbonate-acrylate copolymer
~9 vibration-suction foamed plastics formed (application examples 1~9), not including main base material with constituent, (i.e. constituent does not include containing acetic acid second
The copolymer of allyl ester monomer unit and tertiary ethylene carbonate monomeric unit) the vibration-suction foamed plastic that is formed of comparative example 1 (compare application
Example 1) to compare, its numerical value increasing degree is less, represents that the vibration-suction foamed plastic of application examples 1~9 is transformed into wet environment by dry environment
When, can apparatus with shock absorbing reduction amplitude it is smaller (i.e. shock-absorbing performance reduce amplitude smaller), also illustrate application examples 1~9 and
The vibration-suction foamed plastic for comparing application examples 1 compares, and it is less susceptible to hydrolysis phenomena generation, so compared with can maintain under wet environment
Steep continuous shock-absorbing performance.Therefore, confirmed by aforementioned result, the present invention is used for the constituent for forming vibration-suction foamed plastic, its main base material bag
Include copolymer (the acetic acid second of such as embodiment 1~9 for containing Vinyl Acetate Monomer unit and tertiary ethylene carbonate monomeric unit
Alkene ester-ethene-vinyl versatate copolymer, vinylacetate-vinyl versatate copolymer or vinylacetate-versatic acid
Vinyl acetate-acrylate copolymer) when, vibration-suction foamed plastic that the constituent is subsequently formed can be effectively reduced in humidity or has water ring
The chance of hydrolysis is produced under border.
It is noted that the vibration-suction foamed plastic (application examples 1~6) that the constituent of embodiment 1~6 is formed, the increase of its numerical value
Amplitude is less (i.e. it is smaller to reduce amplitude for shock-absorbing performance), represent vibration-suction foamed plastic that the constituent of embodiment 1~6 formed in humidity or
There is the generation that hydrolysis phenomena is less tended to have in the environment of water.
In summary, because the main base material includes that Vinyl Acetate Monomer unit and tertiary ethylene carbonate monomer list should be contained
The copolymer of member, and make the vibration-suction foamed plastic that is subsequently formed of constituent of the present invention in humidity or have and do not tend to have water in the environment of water
The phenomenon of solution produces, thus the shock-absorbing performance of the vibration-suction foamed plastic will not be greatly decreased, so can reach the purpose of the present invention really.
As described above, only embodiments of the invention, when the scope that the present invention can not be limited with this implement, i.e., greatly
All simple equivalent changes and modificationss made according to claims of the present invention and description, all still belong to what the present invention covered
Scope.
Claims (8)
1. a kind of constituent for being used to form vibration-suction foamed plastic, it is characterised in that the constituent includes：
A kind of base material component, including main base material and secondary base material, are counted by 100 parts by weight of the gross weight of the base material component, the main base material
Content range be 40~95 parts by weight, the content range of this base material is 5~60 parts by weight, and the main base material includes containing acetic acid
The copolymer of vinyl acetate monomer unit and tertiary ethylene carbonate monomeric unit, this base material include polymer, and the polymer is choosing
From in ethylene-vinyl acetate copolymer, polyethylene, polystyrene, acrylonitrile-butadiene rubber, styrene-butadiene rubber
Glue, thermoplastic elastomer (TPE), or foregoing combination；
Foaming agent；And
Bridging agent.
2. the constituent according to claim 1 for being used to form vibration-suction foamed plastic, it is characterised in that：This contains vinylacetate
The copolymer of monomeric unit and tertiary ethylene carbonate monomeric unit is common selected from vinylacetate-ethylene-tertiary ethylene carbonate
Polymers, vinylacetate-vinyl versatate copolymer, vinylacetate-tertiary ethylene carbonate-acrylate copolymer, or
Foregoing combination.
3. the constituent according to claim 1 for being used to form vibration-suction foamed plastic, it is characterised in that：With the total of the base material component
Weight is 100 parts by weight meters, and the content range of the main base material is 45~75 parts by weight, and the content range of this base material is 25~55 weights
Measure part.
4. the constituent according to claim 1 for being used to form vibration-suction foamed plastic, it is characterised in that：The polymer of this base material
It is selected from ethylene-vinyl acetate copolymer of the Vinyl Acetate Monomer unit content range for 10~35%, vinyl acetate
Ester monomer unit content range is 60~90% ethylene-vinyl acetate copolymer, polyethylene, polystyrene, styrene-second
Alkene-butadiene-styrene block copolymer, styrene-isoprene-butadiene-styrene block copolymer, or foregoing group
Close.
5. the constituent according to claim 1 for being used to form vibration-suction foamed plastic, it is characterised in that：With the total of the base material component
Weight is 100 parts by weight meters, and the content range of the foaming agent is 1~8 parts by weight.
6. the constituent according to claim 1 for being used to form vibration-suction foamed plastic, it is characterised in that：With the total of the base material component
Weight is 100 parts by weight meters, and the content range of the bridging agent is 0.1~3 parts by weight.
7. the constituent according to claim 1 for being used to form vibration-suction foamed plastic, it is characterised in that：The constituent, which also includes, to be added
Add agent.
8. the constituent according to claim 7 for being used to form vibration-suction foamed plastic, it is characterised in that：With the total of the base material component
Weight is 100 parts by weight meters, and the content range of the additive is 0.1~83 parts by weight.
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| CN201410387203.0A CN105367964B (en) | 2014-08-08 | 2014-08-08 | For forming the constituent of vibration-suction foamed plastic |
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| CN201410387203.0A CN105367964B (en) | 2014-08-08 | 2014-08-08 | For forming the constituent of vibration-suction foamed plastic |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101293386A (en) * | 2007-04-27 | 2008-10-29 | 镕利兴业股份有限公司 | Process for manufacturing vibration-suction foamed plastic |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101293386A (en) * | 2007-04-27 | 2008-10-29 | 镕利兴业股份有限公司 | Process for manufacturing vibration-suction foamed plastic |
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