CN107586410A - A kind of air-conditioning sheet material composite foam material - Google Patents
A kind of air-conditioning sheet material composite foam material Download PDFInfo
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- CN107586410A CN107586410A CN201710592168.XA CN201710592168A CN107586410A CN 107586410 A CN107586410 A CN 107586410A CN 201710592168 A CN201710592168 A CN 201710592168A CN 107586410 A CN107586410 A CN 107586410A
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- composite foam
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Abstract
A kind of air-conditioning sheet material composite foam material.It is included in parts by weight, and it includes 40~55 parts of ethylene-vinyl acetate copolymer, 5~10 parts of polyethylene, 5~10 parts of ethylene propylene diene rubber, 0.5~2 part of nucleator, 0.5~2 part of lubricant, 1~3 part of foaming agent.The fusion time of expanded material of the present invention is short, and cooling and shaping is fast, and bead welding is good in plastic, steady quality, and production efficiency is high, can realize mechanization and automated production.
Description
Technical field
The invention belongs to foaming technique field.Specifically, the present invention relates to a kind of air-conditioning sheet material composite foam material.
Background technology
Foamed plastics is also referred to as cellular plastic, is the overall plastics for including countless micropores, the contained abscess overwhelming majority is phase
Intercommunicated foamed plastics is referred to as open cell foamed plastic, and the contained abscess overwhelming majority is that mutual disconnected foamed plastics is referred to as closed pore
Foamed plastics, available for noise reduction, heat-insulated, antifreeze, insulation, buffer, shockproof.Gas is dissolved in liquid polymer or will polymerize
Thing is heated to molten state while produces gas and form saturated solution, and when the gas in system exceedes its solubility, gas is just
Effusion forms countless micro-bubble (being referred to as complex), and complex increases and forms bubble, plastics is retained in after bubble is stable, with regard to shape
Into foamed plastics, this foamed plastics is also known as gas hair property foamed plastics, current foaming method low production efficiency, therefore sheet
Invention proposes a kind of central air-conditioning plate moulding foam forming method and its automatic production process.
The content of the invention
It is an object of the invention to provide a kind of air-conditioning sheet material composite foam material, the fusion time of expanded material of the present invention
Short, cooling and shaping is fast, and bead welding is good in plastic, steady quality, and production efficiency is high, can realize mechanization and automatic metaplasia
Production.
To achieve the above object, the present invention uses following technical scheme：
A kind of air-conditioning sheet material composite foam material, in parts by weight, including：Ethylene-vinyl acetate copolymer 40~55
Part, 5~10 parts of polyethylene, 5~10 parts of ethylene propylene diene rubber, 0.5~2 part of nucleator, 0.5~2 part of lubricant, foaming agent 1~3
Part.
Preferably, the nucleator is talcum powder.
Preferably, the lubricant is calcium stearate.
Preferably, the foaming agent is butane.
The fusion time of the present invention is short, and cooling and shaping is fast, and bead welding is good in plastic, steady quality, and production efficiency is high,
Mechanization and automated production can be realized.
Embodiment
In order to which the present invention is apparent to understand, with reference to specific embodiment, the invention will be further described, to help
Understand present disclosure.
Embodiment
A kind of air-conditioning sheet material composite foam material, its procedure of processing are as follows：
(1) manufacture of expandability plastic pellet, the manufacture of the expandability plastic pellet is exactly ethylene-vinyl acetate copolymer 40
~55 parts, 5~10 parts of polyethylene, 5~10 parts of ethylene propylene diene rubber, 0.5~2 part of nucleator talcum powder, lubricant stearic acid calcium
0.5~2 part, expandability plastic pellet is made after the mixing of 1~3 part of foaming agent butane；
(2) prefoam, the prefoam are exactly that heating makes plastic beads expansion to a certain extent, and product is close during to mold
Degree obtains bigger reduction, and reduces the density gradient inside product, and the material through prefoam is still graininess, but its volume ratio is former
Carry out big decades of times, pre-swollen thing is made in common name；
(3) curing, the curing is exactly the plastic beads through prefoam, storage a period of time, absorbs certain air, to prevent
Only be molded after-contraction, curing is generally carried out in large-sized silo or open containers, 22-26 DEG C of curing temperature, the curing time according to
Depending on unit weight requirement, bead form and air conditionses, generally 8-10h；
(4) molded, steam moulded from foam is currentization manufacture polystyrene foamed plastics product and bulk
The most frequently used and most economical method of material, it is described it is molded be that the pre-expanded particles of curing are filled up into mold cavity, mold closing is simultaneously
For compaction mold to prevent foaming process top from opening, heating is directly entered die cavity with steam by aperture on mould inner wall face or slit,
Particles by heat softens, and foaming agent flashes to gas in particle abscess and steam penetrates into abscess, and particle further expands and increases body
Product, due to the limitation of cavity space, the particle of expansion fills up cavity space and clinkering is integral, after cooling and shaping, Qi Mo
Take out, be fine property polystyrene foam plastics product, the product of steam moulded from foam shaping needs entering to dry after mould taking-up
Room (50-60 degree) is dried, and sloughs product surface moisture.Particle expansion is grown the integral foaming process of mutual clinkering and occurred close
In the die cavity closed, void among particles are gradually reduced until disappearance with foaming process, therefore are passed through the steam flowing resistance of die cavity
Power gradually increases, and steam pressure power is increased to predetermined pressure value, and the pressure value is referred to as moulded from foam alveolitoid pressure, that is, is molded hair
The terminal of type is soaked, now steam off, stop heating, be passed through cooling and shaping.
General principle, principal character and the advantages of the present invention of the present invention, the technology of the industry has been shown and described above
Personnel under the premise without departing from the spirit and scope of the present invention, can also it will be appreciated that the present invention is not limited to the above embodiments
There are various changes and modifications, these changes and improvement all fall within the protetion scope of the claimed invention.
Claims (5)
1. a kind of air-conditioning sheet material composite foam material, it is characterised in that it is included in parts by weight, and it includes ethyl vinyl acetate
40~55 parts of ethylene copolymer, 5~10 parts of polyethylene, 5~10 parts of ethylene propylene diene rubber, 0.5~2 part of nucleator, lubricant 0.5
~2 parts, 1~3 part of foaming agent.
2. expanded material according to claim 1, it is characterised in that the nucleator is talcum powder.
3. expanded material according to claim 1, it is characterised in that the lubricant is calcium stearate.
4. expanded material according to claim 1, it is characterised in that the foaming agent is butane.
5. expanded material according to claim 1, it is characterised in that expanded material is processed by following step to go out：
(1) manufacture of expandability plastic pellet；
(2) prefoam；
(3) cure；
(4) it is molded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710592168.XA CN107586410A (en) | 2017-07-19 | 2017-07-19 | A kind of air-conditioning sheet material composite foam material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710592168.XA CN107586410A (en) | 2017-07-19 | 2017-07-19 | A kind of air-conditioning sheet material composite foam material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107586410A true CN107586410A (en) | 2018-01-16 |
Family
ID=61041775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710592168.XA Pending CN107586410A (en) | 2017-07-19 | 2017-07-19 | A kind of air-conditioning sheet material composite foam material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107586410A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102660129A (en) * | 2012-05-28 | 2012-09-12 | 安踏（中国）有限公司 | EVA (ethylene-vinyl acetate copolymer) foamed composite and preparation method thereof |
| CN105694187A (en) * | 2014-11-25 | 2016-06-22 | 湘潭富帝数控设备有限公司 | Composite foam material |
| CN106147037A (en) * | 2015-03-25 | 2016-11-23 | 吕钟舟 | A kind of preparation method of EVA nano combined foaming rubber plastic Combined inner tube |
-
2017
- 2017-07-19 CN CN201710592168.XA patent/CN107586410A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102660129A (en) * | 2012-05-28 | 2012-09-12 | 安踏（中国）有限公司 | EVA (ethylene-vinyl acetate copolymer) foamed composite and preparation method thereof |
| CN105694187A (en) * | 2014-11-25 | 2016-06-22 | 湘潭富帝数控设备有限公司 | Composite foam material |
| CN106147037A (en) * | 2015-03-25 | 2016-11-23 | 吕钟舟 | A kind of preparation method of EVA nano combined foaming rubber plastic Combined inner tube |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180116 |