CN114274635B - Resin foam sheet and production process thereof - Google Patents
Resin foam sheet and production process thereof Download PDFInfo
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- CN114274635B CN114274635B CN202111631378.8A CN202111631378A CN114274635B CN 114274635 B CN114274635 B CN 114274635B CN 202111631378 A CN202111631378 A CN 202111631378A CN 114274635 B CN114274635 B CN 114274635B
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- polypropylene resin
- resin
- resin matrix
- raw materials
- matrix
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- 239000011347 resin Substances 0.000 title claims abstract description 138
- 229920005989 resin Polymers 0.000 title claims abstract description 138
- 239000006260 foam Substances 0.000 title claims description 21
- 238000004519 manufacturing process Methods 0.000 title abstract description 11
- 239000004743 Polypropylene Substances 0.000 claims abstract description 65
- -1 polypropylene Polymers 0.000 claims abstract description 65
- 229920001155 polypropylene Polymers 0.000 claims abstract description 65
- 239000011159 matrix material Substances 0.000 claims abstract description 51
- 239000000853 adhesive Substances 0.000 claims abstract description 28
- 230000001070 adhesive effect Effects 0.000 claims abstract description 28
- 238000005187 foaming Methods 0.000 claims abstract description 26
- 238000000034 method Methods 0.000 claims abstract description 11
- 230000008569 process Effects 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims description 35
- 239000002994 raw material Substances 0.000 claims description 33
- 230000007246 mechanism Effects 0.000 claims description 18
- 238000007670 refining Methods 0.000 claims description 16
- 238000003756 stirring Methods 0.000 claims description 10
- 238000001125 extrusion Methods 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims 3
- 230000008094 contradictory effect Effects 0.000 claims 1
- 230000005611 electricity Effects 0.000 abstract description 3
- 230000003068 static effect Effects 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000003746 surface roughness Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000011342 resin composition Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000009991 scouring Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Abstract
The invention provides a resin foaming sheet and a production process thereof, wherein the resin foaming sheet comprises a polypropylene resin matrix and an antistatic layer wrapping the polypropylene resin matrix, the antistatic layer comprises a resin bonding sheet arranged on the outer side of the polypropylene resin matrix and an antistatic film arranged on the outer side of the resin bonding sheet, and the resin bonding sheet is used for bonding and fixing the antistatic film on the polypropylene resin matrix. When the resin foaming sheet is used for supporting the electrical appliance in the transportation process, the antistatic film can prevent static electricity generated by friction and avoid damage to the electrical appliance. The resin adhesive sheet can bond and fix the antistatic film on the polypropylene resin matrix, so that the antistatic film is not easy to fall off from the polypropylene resin matrix.
Description
Technical Field
The invention relates to a foaming sheet material, in particular to a resin foaming sheet material and a production process thereof.
Background
Resin foam sheets, which are sheet-like materials formed by extrusion foaming of a resin composition, are widely used in environments where lightweight properties and cushioning properties are required. Among them, a polypropylene resin foamed sheet formed by extrusion foaming a polypropylene resin composition containing a polypropylene resin as a main component is widely used because of low cost. However, the conventional polypropylene resin foam sheet has a problem of poor antistatic effect. In this way, when an electrical appliance during transportation is supported by using a conventional polypropylene resin foam sheet, static electricity generated by friction of the polypropylene resin foam sheet may damage the electrical appliance.
Disclosure of Invention
In view of the above, a first object of the present invention is to provide a resin foam sheet having an advantage of good antistatic effect.
In order to solve the technical problems, the technical scheme of the invention is as follows: the resin foaming sheet comprises a polypropylene resin matrix, and further comprises an antistatic layer wrapping the polypropylene resin matrix, wherein the antistatic layer comprises a resin bonding sheet arranged on the outer side of the polypropylene resin matrix and an antistatic film arranged on the outer side of the resin bonding sheet, and the resin bonding sheet is used for bonding and fixing the antistatic film on the polypropylene resin matrix.
Through the technical scheme, when the resin foaming sheet is used for supporting the electrical appliance in the transportation process, the antistatic film can prevent static electricity produced by friction and avoid damage to the electrical appliance. The resin adhesive sheet can bond and fix the antistatic film on the polypropylene resin matrix, so that the antistatic film is not easy to fall off from the polypropylene resin matrix.
Preferably, a plurality of elastic supporting protruding points are uniformly distributed on the outer side of the antistatic film, and the elastic supporting protruding points are used for being abutted against the electric appliance.
Through above-mentioned technical scheme, the outside of antistatic film sets up a plurality of elasticity and supports the bump, can effectively increase the surface roughness of resin foam sheet, so when using resin foam sheet to support the electrical apparatus in the middle of the transportation, be difficult for producing relative movement between resin foam sheet and the electrical apparatus.
Preferably, a rubber film is arranged on the surface of the elastic supporting protruding points, and the edge of the rubber film is fixedly bonded with the antistatic film.
Through the technical scheme, the rubber die is arranged on the surface of the elastic supporting protruding point and used for further increasing the surface roughness of the resin foaming sheet, so that when the resin foaming sheet is used for supporting an electric appliance in the transportation process, relative movement is not easy to occur between the resin foaming sheet and the electric appliance.
Preferably, the outer side of the rubber film is provided with a plurality of anti-skid patterns, and the anti-skid patterns are staggered.
Through the technical scheme, the outer side of the rubber mold is provided with a plurality of anti-skid patterns for further increasing the surface roughness of the resin foam sheet, so that when the resin foam sheet is used for supporting an electric appliance in the transportation process, relative movement is not easy to occur between the resin foam sheet and the electric appliance.
Preferably, a plurality of elastic connection protruding points are uniformly distributed on the inner side of the antistatic film, and the elastic connection protruding points are embedded into the resin adhesive sheet.
Through above-mentioned technical scheme, the inboard of antistatic backing sets up a plurality of elastic connection bump for increase the area of contact between antistatic backing and the resin bonding piece, make difficult separation between antistatic backing and the resin bonding piece.
Preferably, a plurality of connection barbs are uniformly distributed on the outer side of the elastic connection salient points, and a plurality of connection barbs penetrate into the resin adhesive sheet.
Through above-mentioned technical scheme, the outside evenly distributed of elastic connection bump has a plurality of connection barbs, and connection barb pierces in the resin bonding piece for increase the connection stability between antistatic film and the resin bonding piece, make difficult separation between antistatic film and the resin bonding piece.
The second object of the invention is to provide a production process of resin foam sheet, which has the advantage of higher production efficiency.
The technical scheme of the invention is as follows: a production process of a resin foaming sheet is characterized in that: the method comprises the following steps:
step one: putting the raw materials of the polypropylene resin matrix into an internal mixer, and carrying out internal mixing processing on the raw materials of the polypropylene resin matrix by using the internal mixer;
step two: putting the raw materials of the banburying polypropylene resin matrix into an extruder, and extruding the raw materials of the polypropylene resin matrix by using the extruder;
step three: putting the raw materials of the polypropylene resin matrix subjected to extrusion processing into an open mill, and carrying out open mill processing on the raw materials of the polypropylene resin matrix by using the open mill;
step four: putting the raw material of the open-run polypropylene resin matrix into a foaming machine, and foaming the raw material of the polypropylene resin matrix by using the foaming machine;
step five: placing a resin adhesive sheet on the surface of a polypropylene resin matrix;
step six: pressing the resin adhesive sheet to make the resin adhesive sheet be adhered and fixed on the polypropylene resin matrix;
step seven: placing an antistatic film on the surface of the resin adhesive sheet;
step eight: the electrostatic film is pressed so that the elastic connection bumps are embedded in the resin adhesive sheet so that the connection barbs penetrate into the resin adhesive sheet.
Through above-mentioned technical scheme, produce resin foaming sheet through banbury mixer, extruder, mill and foaming machine, have degree of automation higher, advantage that production efficiency is higher.
Preferably, the open mill comprises a frame, two rotating rollers rotatably connected to the frame, and a driving mechanism for driving the two rotating rollers to rotate in opposite directions, wherein a refining cavity is formed between the two rotating rollers.
Through the technical scheme, when the open mill is used, raw materials of the polypropylene resin matrix are placed into the refining cavity, and then the two rotating rollers are driven to reversely rotate through the driving mechanism, so that the raw materials of the polypropylene resin matrix in the refining cavity are extruded, and the open mill processing of the polypropylene resin matrix is completed.
Preferably, the open mill further comprises two groups of automatic material turning mechanisms arranged at two ends of the refining cavity, each automatic material turning mechanism comprises a material turning plate and a material turning power piece, the lower ends of the material turning plates are simultaneously abutted against the two rotating rollers, the output ends of the material turning power pieces are connected with the material turning plates, and the material turning power pieces are used for driving the material turning plates to slide along the axial direction of the rotating rollers.
Through above-mentioned technical scheme, during the use, drive through the stirring power spare and turn over the flitch and remove to the middle part of refining cavity for the raw materials of the polypropylene resin base member that is located the refining cavity lateral part pushes away the middle part position of refining cavity. The manual material turning is replaced, and the production efficiency of the resin foaming sheet is improved.
Preferably, the automatic material turning mechanism further comprises elastic expansion plates symmetrically arranged on two sides of the material turning plate, one end of each elastic expansion plate is fixedly connected with the material turning plate, the other end of each elastic expansion plate is fixedly connected with the frame, and the elastic expansion plates are abutted against the circumferential wall of the rotating roller.
Through the technical scheme, the elastic expansion plate arranged on the side part of the turning plate can guide the raw material of the polypropylene resin matrix on the rotating roller, so that the raw material enters the middle part of the refining cavity.
Drawings
FIG. 1 is a schematic diagram of a first embodiment;
fig. 2 is an enlarged view of a portion a of fig. 1;
FIG. 3 is a schematic diagram of a second embodiment;
fig. 4 is a schematic structural diagram of the third embodiment.
Reference numerals: 1. a polypropylene resin matrix; 2. an antistatic layer; 21. a resin adhesive sheet; 22. an antistatic film; 3. elastic supporting convex points; 4. a rubber film; 5. anti-skid lines; 6. elastic connecting convex points; 7. connecting barbs; 8. a frame; 9. a rotating roller; 10. a driving mechanism; 11. an automatic material turning mechanism; 111. a turning plate; 112. a turning power piece; 113. an elastic expansion plate.
Detailed Description
The following detailed description of the invention is provided in connection with the accompanying drawings to facilitate understanding and grasping of the technical scheme of the invention.
Embodiment one:
as shown in fig. 1 and 2, the resin foam sheet comprises a polypropylene resin substrate 1 and an antistatic layer 2.
The antistatic layer 2 includes a resin adhesive sheet 21 provided outside the polypropylene resin base 1, and an antistatic film 22 provided outside the resin adhesive sheet 21. The resin adhesive sheet 21 is used to adhesively fix the antistatic film 22 to the polypropylene resin base 1. The outer side of the antistatic film 22 is uniformly distributed with a plurality of elastic supporting protruding points 3, and the elastic supporting protruding points 3 are used for being abutted against the electric appliance. The surface of the elastic supporting convex points 3 is provided with a rubber film 4, and the edge of the rubber film 4 is adhered and fixed with an antistatic film 22. The outer side of the rubber film 4 is provided with a plurality of anti-skid patterns 5, and the anti-skid patterns 5 are staggered. The inner side of the antistatic film 22 is uniformly distributed with a plurality of elastic connection protruding points 6, and the elastic connection protruding points 6 are embedded into the resin adhesive sheet 21. The outer side of the elastic connection convex points 6 is uniformly distributed with a plurality of connection barbs 7, and the connection barbs 7 penetrate into the resin adhesive sheet 21.
Embodiment two:
a production process of a resin foaming sheet comprises the following steps:
step one: putting the raw materials of the polypropylene resin matrix into an internal mixer, and carrying out internal mixing processing on the raw materials of the polypropylene resin matrix by using the internal mixer;
step two: putting the raw materials of the banburying polypropylene resin matrix into an extruder, and extruding the raw materials of the polypropylene resin matrix by using the extruder;
step three: putting the raw materials of the polypropylene resin matrix subjected to extrusion processing into an open mill, and carrying out open mill processing on the raw materials of the polypropylene resin matrix by using the open mill;
step four: putting the raw material of the open-run polypropylene resin matrix into a foaming machine, and foaming the raw material of the polypropylene resin matrix by using the foaming machine;
step five: placing a resin adhesive sheet on the surface of a polypropylene resin matrix;
step six: pressing the resin adhesive sheet to make the resin adhesive sheet be adhered and fixed on the polypropylene resin matrix;
step seven: placing an antistatic film on the surface of the resin adhesive sheet;
step eight: the electrostatic film is pressed so that the elastic connection bumps are embedded in the resin adhesive sheet so that the connection barbs penetrate into the resin adhesive sheet.
As shown in fig. 3, the open mill in the third step includes a frame 8, two rotating rollers 9 rotatably connected to the frame 8, and a driving mechanism 10 for driving the two rotating rollers 9 to rotate reversely, wherein a refining cavity is formed between the two rotating rollers 9. When the device is used, the raw materials of the polypropylene resin matrix are put into the refining cavity, and the driving mechanism 10 controls the two rotating rollers 9 to rotate in opposite directions so as to squeeze the raw materials of the polypropylene resin matrix, so that the scouring process is completed.
Embodiment III:
the difference between the third embodiment and the second embodiment is that, as shown in fig. 4, the automatic material turning mechanism 11 is symmetrically disposed at two ends of the refining cavity, and the automatic material turning mechanism 11 is used for driving the raw materials of the polypropylene resin substrates at two sides of the refining cavity to move towards the middle of the refining cavity. The automatic material turning mechanism 11 replaces manual material turning, so that the production efficiency of the resin foam sheet can be improved to a great extent.
The automatic material turning mechanism 11 comprises a material turning plate 111 and a material turning power piece 112, the lower end of the material turning plate 111 is simultaneously abutted against the two rotating rollers 9, the output end of the material turning power piece 112 is connected to the material turning plate 111, and the material turning power piece 112 is used for driving the material turning plate 111 to slide along the axial direction of the rotating rollers 9.
The automatic material turning mechanism 11 further comprises elastic expansion plates 113 symmetrically arranged on two sides of the material turning plate 111, one end of each elastic expansion plate 113 is fixedly connected to the material turning plate 111, the other end of each elastic expansion plate 113 is fixedly connected to the frame 8, the bottom of each elastic expansion plate 113 abuts against the circumferential wall of the corresponding rotating roller 9, and the elastic expansion plates are used for guiding raw materials of the polypropylene resin matrix on the corresponding rotating roller 9 to the middle position of the refining cavity.
Of course, the above is only a typical example of the invention, and other embodiments of the invention are also possible, and all technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of the invention claimed.
Claims (5)
1. A resin foam sheet, comprising a polypropylene resin matrix (1), characterized in that: still including the parcel antistatic backing (2) of polypropylene resin base member (1), antistatic backing (2) are in including setting up resin bonding piece (21) in polypropylene resin base member (1) outside and setting up antistatic backing (22) in resin bonding piece (21) outside, resin bonding piece (21) be used for with antistatic backing (22) bond and fix in polypropylene resin base member (1), the outside evenly distributed of antistatic backing (22) has a plurality of elastic support bump (3), just elastic support bump (3) are used for contradicting with the electrical apparatus, the surface of elastic support bump (3) is provided with rubber membrane (4), the border of rubber membrane (4) with antistatic backing (22) bond fixedly, a plurality of anti-skidding line (5) have been seted up in the outside of rubber membrane (4), and a plurality of anti-skidding line (5) are the alternate setting, the inboard evenly distributed of antistatic backing (22) has a plurality of elastic connection bump (6), and a plurality of elastic connection bump (6) imbed in resin bonding piece (21) the barb (7) are connected in a plurality of equal barb (7) are connected in the equal barb (7).
2. A process for producing the resin foam sheet according to claim 1, characterized in that: the method comprises the following steps:
step one: putting the raw materials of the polypropylene resin matrix into an internal mixer, and carrying out internal mixing processing on the raw materials of the polypropylene resin matrix by using the internal mixer;
step two: putting the raw materials of the banburying polypropylene resin matrix into an extruder, and extruding the raw materials of the polypropylene resin matrix by using the extruder;
step three: putting the raw materials of the polypropylene resin matrix subjected to extrusion processing into an open mill, and carrying out open mill processing on the raw materials of the polypropylene resin matrix by using the open mill;
step four: putting the raw material of the open-run polypropylene resin matrix into a foaming machine, and foaming the raw material of the polypropylene resin matrix by using the foaming machine;
step five: placing a resin adhesive sheet on the surface of a polypropylene resin matrix;
step six: pressing the resin adhesive sheet to make the resin adhesive sheet be adhered and fixed on the polypropylene resin matrix;
step seven: placing an antistatic film on the surface of the resin adhesive sheet;
step eight: the antistatic film is pressed so that the elastic connection bumps are embedded in the resin adhesive sheet so that the connection barbs penetrate into the resin adhesive sheet.
3. The process for producing a resin foam sheet according to claim 2, characterized in that: the open mill comprises a frame (8), two rotating rollers (9) rotatably connected to the frame (8), and a driving mechanism (10) for driving the two rotating rollers (9) to rotate in opposite directions, wherein a refining cavity is formed between the two rotating rollers (9).
4. A process for producing a resin foam sheet according to claim 3, characterized in that: the open mill is characterized by further comprising two groups of automatic stirring mechanisms (11) arranged at two ends of the refining cavity, each automatic stirring mechanism (11) comprises a stirring plate (111) and stirring power pieces (112), the lower ends of the stirring plates (111) are simultaneously abutted against two rotating rollers (9), the output ends of the stirring power pieces (112) are connected to the stirring plates (111), and the stirring power pieces (112) are used for driving the stirring plates (111) to slide along the axial direction of the rotating rollers (9).
5. The process for producing a resin foam sheet according to claim 4, wherein: the automatic material turning mechanism (11) further comprises elastic expansion plates (113) symmetrically arranged on two sides of the material turning plate (111), one end of each elastic expansion plate (113) is fixedly connected with the material turning plate (111), the other end of each elastic expansion plate (113) is fixedly connected with the frame (8), and the elastic expansion plates (113) are abutted against the circumferential wall of the rotating roller (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111631378.8A CN114274635B (en) | 2021-12-29 | 2021-12-29 | Resin foam sheet and production process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111631378.8A CN114274635B (en) | 2021-12-29 | 2021-12-29 | Resin foam sheet and production process thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114274635A CN114274635A (en) | 2022-04-05 |
| CN114274635B true CN114274635B (en) | 2024-03-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111631378.8A Active CN114274635B (en) | 2021-12-29 | 2021-12-29 | Resin foam sheet and production process thereof |
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| Country | Link |
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| CN (1) | CN114274635B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1532042A (en) * | 2003-03-13 | 2004-09-29 | 住友化学工业株式会社 | Method for producing laminated foam sheet |
| CN102612534A (en) * | 2009-11-18 | 2012-07-25 | 积水化成品工业株式会社 | Reresin foamed sheet |
| CN103338912A (en) * | 2011-02-03 | 2013-10-02 | 株式会社Jsp | Polyolefin resin laminated foam sheet |
| CN203393088U (en) * | 2013-06-20 | 2014-01-15 | 斯迪克新型材料（江苏）有限公司 | Convenient-to-separate anti-static anti-sticking adhesive tape |
| CN204977625U (en) * | 2015-07-28 | 2016-01-20 | 沈信义 | Multilayer antiskid foaming board |
| CN105780540A (en) * | 2016-05-11 | 2016-07-20 | 游晟印染(深圳）有限公司 | Textile foaming limited slip stamp and manufacturing process thereof |
| CN106170377A (en) * | 2014-04-15 | 2016-11-30 | 株式会社钟化 | Polyolefin-based resins foam-in-mould molding die, the manufacture method of foam-in-mould drip molding and foam-in-mould drip molding |
| CN112976622A (en) * | 2021-04-20 | 2021-06-18 | 台州道麒新材料股份有限公司 | Foamed sheet production line |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1075921B1 (en) * | 1999-08-12 | 2006-09-06 | Sumitomo Chemical Company, Limited | Multilayer polyolefin foamed sheet and method and apparatus for producing the same |
-
2021
- 2021-12-29 CN CN202111631378.8A patent/CN114274635B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1532042A (en) * | 2003-03-13 | 2004-09-29 | 住友化学工业株式会社 | Method for producing laminated foam sheet |
| CN102612534A (en) * | 2009-11-18 | 2012-07-25 | 积水化成品工业株式会社 | Reresin foamed sheet |
| CN103338912A (en) * | 2011-02-03 | 2013-10-02 | 株式会社Jsp | Polyolefin resin laminated foam sheet |
| CN203393088U (en) * | 2013-06-20 | 2014-01-15 | 斯迪克新型材料（江苏）有限公司 | Convenient-to-separate anti-static anti-sticking adhesive tape |
| CN106170377A (en) * | 2014-04-15 | 2016-11-30 | 株式会社钟化 | Polyolefin-based resins foam-in-mould molding die, the manufacture method of foam-in-mould drip molding and foam-in-mould drip molding |
| CN204977625U (en) * | 2015-07-28 | 2016-01-20 | 沈信义 | Multilayer antiskid foaming board |
| CN105780540A (en) * | 2016-05-11 | 2016-07-20 | 游晟印染(深圳）有限公司 | Textile foaming limited slip stamp and manufacturing process thereof |
| CN112976622A (en) * | 2021-04-20 | 2021-06-18 | 台州道麒新材料股份有限公司 | Foamed sheet production line |
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| CN114274635A (en) | 2022-04-05 |
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Effective date of registration: 20240226 Address after: 529000 Southwest Industrial Zone, Wenchun Town, Taishan City, Jiangmen City, Guangdong Province Applicant after: Taishan Dayuan New Materials Technology Co.,Ltd. Country or region after: China Address before: 317108 pupugang Town, three gate County, Taizhou, Zhejiang (Zhejiang three coastal industrial city) Applicant before: Taizhou Daoqi New Material Co.,Ltd. Country or region before: China |
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