CN112574566B - Method for manufacturing smooth surface foaming plate - Google Patents
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- CN112574566B CN112574566B CN202011352763.4A CN202011352763A CN112574566B CN 112574566 B CN112574566 B CN 112574566B CN 202011352763 A CN202011352763 A CN 202011352763A CN 112574566 B CN112574566 B CN 112574566B
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/3403—Foaming under special conditions, e.g. in sub-atmospheric pressure, in or on a liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/56—After-treatment of articles, e.g. for altering the shape
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C71/00—After-treatment of articles without altering their shape; Apparatus therefor
- B29C71/04—After-treatment of articles without altering their shape; Apparatus therefor by wave energy or particle radiation, e.g. for curing or vulcanising preformed articles
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L61/00—Compositions of condensation polymers of aldehydes or ketones; Compositions of derivatives of such polymers
- C08L61/04—Condensation polymers of aldehydes or ketones with phenols only
- C08L61/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2007/00—Flat articles, e.g. films or sheets
- B29L2007/002—Panels; Plates; Sheets
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
- C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
- C08J2327/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08J2327/06—Homopolymers or copolymers of vinyl chloride
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2383/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Derivatives of such polymers
- C08J2383/04—Polysiloxanes
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
The invention discloses a method for manufacturing a smooth foaming plate, which comprises a plurality of processes of A group raw material preparation treatment, B group raw material preparation treatment, shaping standing treatment, shaping detection treatment, negative pressure composite treatment, ultraviolet curing treatment and fluid polishing treatment, firstly, the reinforcement of the outer surface of the foaming plate is realized and the strength is improved due to the adoption of AB composition composite design, secondly, the negative pressure process is adopted in the process, so that the B composition is better permeated and compounded with the A composition, in addition, the air outflow in holes inside the A composition can be improved, the problem that the surface smooth surface is influenced due to bubble holes after the subsequent fluid polishing is avoided, and finally, the problem that the air or particles are easy to permeate into the composition due to the air drying or heating drying in the traditional way and the problem that the curing molding state and the effect are easy to be influenced due to uneven heat are avoided due to the matching of an ultraviolet curing mode, in conclusion, the manufacturing method of the invention is scientific and stable, and has higher popularization and application values.
Description
Technical Field
The invention relates to the technical field of manufacturing of foaming boards, in particular to a manufacturing method of a smooth foaming board.
Background
The foam board is a board body formed by a foaming principle mainly using a plastic material, and has the characteristics of light weight, easiness in carrying, easiness in manufacturing a large area and low cost, so that the foam board is applied to various fields and products.
According to the above, in the production process of the conventional foam board, for example, a silica gel foam board or a polyvinyl chloride foam board, because a foaming process is adopted, a board body generates a lot of bubbles, the appearance effect is extremely poor, and after the surface of the board body is polished and polished, the roughness of the surface cannot be ensured due to the influence of air holes, so that the appearance of the foam board is influenced, and in addition, the sealing property and the smoothness of the foam board are also influenced, and the application of the product is greatly restricted. In view of the above drawbacks, it is necessary to design a method for manufacturing a smooth surface foam board.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the method for manufacturing the smooth-surface foaming board is provided to solve the problem that the smooth surface cannot be leveled due to the influence of bubble holes and smoothness in the manufacturing and production process of the traditional foaming board at present.
In order to solve the technical problems, the technical scheme of the invention is as follows: a method for manufacturing a smooth surface foaming plate comprises the following steps:
Step (1), preparation treatment of group A raw materials: placing rubber, a foaming agent and a vulcanizing agent into a foaming machine for high-speed stirring, and quickly mixing to form a foamed composition A;
step (2), B group raw material preparation treatment: mixing the resin, the retarder and the nano-microspheres with each other, and stirring at a high speed to form a composition B to be solidified;
and (3) shaping and standing treatment: pouring the composition A in the step (1) and the composition B in the step (2) into two constitutive molds respectively for standing and positioning, and forming the composition A and the composition B to be cured and molded in required shapes:
and (4) molding detection treatment: detecting the curing molding state of the composition A and the composition B in the step (3) and judging whether the subsequent steps can be carried out or not;
and (5) carrying out negative pressure composite treatment: placing the composition A and the composition B which are qualified in the detection in the step (4) into a sealed container to be stacked mutually, and carrying out negative pressure suction treatment on the sealed container by a suction device so as to keep the negative pressure state of the sealed container and enable the sealed container to form an AB complex;
and (6) ultraviolet curing treatment: carrying out ultraviolet irradiation on the AB compound in the step (5) by virtue of an ultraviolet irradiation device to accelerate the curing and forming effect so as to form the completely cured and formed AB compound;
Step (7) fluid polishing treatment: and (4) carrying out fluid polishing on the surface of the AB composite completely cured and molded in the step (6) by using a fluid polishing device to ensure that the surface roughness of the AB composite meets the required standard, and finally realizing the manufacture of the smooth foaming board.
Further, the rubber in the step (1) is any one of silicon rubber, nitrile rubber and polyvinyl chloride.
Further, the resin in the step (2) is any one of phenolic resin and epoxy resin.
Further, the shape of the two composition forming molds in the step (3) is any one of a sheet shape, a strip shape and a block shape, and the thickness of the composition B forming mold is 15% -30% of that of the composition A forming mold.
Further, the qualified detection standard in the step (4) is 30% -50% of the curing and forming completion degree of the composition A, and 40% -60% of the curing and forming completion degree of the composition B.
Further, the stacking mode in the step (5) is that the composition B is placed on the top of the composition A, and the position below the composition A is in the suction direction of the negative pressure suction device.
Further, the ultraviolet irradiation device in the step (6) is located above the B composition, and the ultraviolet irradiation direction is directly below the B composition.
Further, the fluid polishing area of the step (7) is the surface of the composition B in the AB composite, and the roughness standard after polishing is 0.03-0.08 Ra.
Compared with the prior art, the manufacturing method of the smooth surface foaming plate has the following advantages:
1. firstly, the composite design of the composition A and the composition B is adopted, so that the outer surface of one side of the foaming plate is reinforced, and the strength and the flatness of the foaming plate are improved.
2. And secondly, in the compounding process, a negative pressure suction process is adopted, so that the resin in the composition B is conveniently permeated and compounded with the rubber of the composition A, the outflow of air in holes in the composition A can be improved, and the formation of bubbles is greatly avoided, so that the problem that the surface smooth surface is influenced by the bubble holes after subsequent fluid polishing is solved.
3. Finally, the ultraviolet curing mode is matched, so that the problems that air or particles are easy to permeate into the composition and the curing molding state and effect are easy to be influenced by uneven heat due to air drying or heating drying in the traditional method are solved, and the manufacturing method is scientific and stable and has high popularization and application values.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic flow chart of a method for manufacturing a smooth surface foaming plate.
The following detailed description will be further described in conjunction with the above-described drawings.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the concepts underlying the described embodiments, however, it will be apparent to one skilled in the art that the described embodiments may be practiced without some or all of these specific details, and in other cases well-known process steps have not been described in detail.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the invention.
Example 1
As shown in figure 1, a method for manufacturing a smooth-surface foaming plate comprises the steps of firstly placing silicon rubber, a foaming agent and a vulcanizing agent into a foaming machine for high-speed stirring to quickly mix the silicon rubber, the foaming agent and the vulcanizing agent to realize good foaming of the silicon rubber through the action of the foaming agent and the vulcanizing agent, namely forming a foaming composition A, then mixing phenolic resin, a curing retarder and nano microspheres with each other for high-speed stirring, reducing the forming and curing speed of the phenolic resin through the action of the curing retarder to facilitate the subsequent compounding with the composition A, simultaneously, the nano microspheres can better permeate into fine holes in the composition A after the compounding to further reduce the generation of air holes, forming a composition B to be solidified through the formation, then respectively pouring the composition A and the composition B into two component forming molds for standing and positioning to form the required sheet-shaped, strip-shaped or block-shaped composition A and the composition B to be solidified and placed, the thickness of the B composition forming mold is 30 percent of that of the A composition forming mold, so that the thickness of the B composition is increased, then the curing and forming states of the A composition and the B composition after standing are detected, when the curing and forming completion degree of the A composition is 50 percent and the curing and forming completion degree of the B composition is 60 percent, the A composition and the B composition which are qualified to be detected can be placed into a sealed container, the B composition is placed on the top of the A composition, a negative pressure suction device at the lower part of the A composition is started to carry out negative pressure suction treatment, namely, the air in the A composition is sucked, the downward penetration speed of the B composition above is increased, the AB composition is formed, the AB composition is placed below an ultraviolet irradiation device, and the surface of the B composition is positioned in an ultraviolet irradiation area, namely, the B composition is irradiated by ultraviolet rays, the curing and forming effect is accelerated, the problem that air or particles are easy to permeate into the composition due to air drying or heating drying in the prior art is solved, the curing and forming state and effect are easy to be affected due to uneven heat, a completely cured and formed AB composite is formed, and finally the surface of the composition B of the completely cured and formed AB composite is subjected to fluid polishing through a fluid polishing device, so that the surface roughness of the composition B reaches the standard of 0.03-0.08 Ra, and finally the manufacturing of the smooth-surface foaming plate is realized;
It should be noted that in example 1, because the silicone rubber and the phenolic resin are used, the flowability is high, the mutual permeation effect is improved, and the generation of pores is reduced, it is necessary to ensure 50% of the curing and forming completion degree of the composition a and 60% of the curing and forming completion degree of the composition B, which facilitates the subsequent compounding operation, and in addition, because the strength of the phenolic resin is low, the thickness of the forming mold is 30% to facilitate thickening of the composition B, thereby achieving the purpose of improving the strength.
Example 2
As shown in figure 1, a manufacturing method of a smooth-surface foaming plate comprises the steps of firstly placing polyvinyl chloride, a foaming agent and a vulcanizing agent into a foaming machine for high-speed stirring to quickly mix the polyvinyl chloride, the foaming agent and the vulcanizing agent, realizing good foaming of polyvinyl chloride under the action of the foaming agent and the vulcanizing agent to form a foaming composition A, then mixing epoxy resin, a curing retarder and nano microspheres with each other for high-speed stirring to reduce the forming and curing speed of the epoxy resin under the action of the curing retarder, facilitating the subsequent compounding with the composition A, simultaneously, the nano microspheres can better permeate into fine holes in the composition A after compounding to further reduce the generation of air holes, at the moment, forming a composition B to be solidified through the formation of the composition B, then respectively pouring the composition A and the composition B into two constitutive molds for standing and positioning to form the required sheet-shaped, strip-shaped or block-shaped composition A and the composition B to be solidified and standing, the thickness of the B composition forming mold is 15 percent of that of the A composition forming mold, so that the thickness of the B composition is increased, then the curing and forming states of the A composition and the B composition after standing are detected, when the curing and forming completion degree of the A composition is 30 percent and the curing and forming completion degree of the B composition is 40 percent, the A composition and the B composition which are qualified to be detected can be placed into a sealed container, the B composition is placed on the top of the A composition, a negative pressure suction device at the lower part of the A composition is started to carry out negative pressure suction treatment, namely, the air in the A composition is sucked, the downward penetration speed of the B composition above is increased, the AB composition is formed, the AB composition is placed below an ultraviolet irradiation device, and the surface of the B composition is positioned in an ultraviolet irradiation area, namely, the B composition is irradiated by ultraviolet rays, the curing and forming effect is accelerated, the problem that air or particles are easy to permeate into the composition due to air drying or heating drying in the prior art is solved, the curing and forming state and effect are easy to be affected due to uneven heat, a completely cured and formed AB composite is formed, and finally the surface of the composition B of the completely cured and formed AB composite is subjected to fluid polishing through a fluid polishing device, so that the surface roughness of the composition B reaches the standard of 0.03-0.08 Ra, and finally the manufacturing of the smooth-surface foaming plate is realized;
It should be noted that in example 2, polyvinyl chloride and epoxy resin are used, and the fluidity is lower than that in example 1, so that the strength is improved, but for the convenience of subsequent compounding, only 30% of the curing molding completion degree of the composition a and 40% of the curing molding completion degree of the composition B need to be ensured, so that the subsequent penetration of the composition B into the composition a is not affected, and in addition, because the strength of epoxy resin is high, the strength requirement of the plain foamed plate can be met by 15% of the thickness of the molding die.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, it is possible to make various improvements and modifications without departing from the technical principle of the present invention, and those improvements and modifications should be also considered as the protection scope of the present invention.
Claims (5)
1. A method for manufacturing a smooth surface foaming board is characterized by comprising the following steps:
step (1) A group raw material preparation treatment: placing rubber, a foaming agent and a vulcanizing agent into a foaming machine for high-speed stirring, and quickly mixing to form a foamed composition A;
step (2), B group raw material preparation treatment: mixing the resin, the retarder and the nano-microspheres with each other, and stirring at a high speed to form a composition B to be solidified;
And (3) shaping and standing treatment: pouring the composition A in the step (1) and the composition B in the step (2) into two constitutive molds respectively for standing and positioning, and forming the composition A and the composition B to be cured and molded in required shapes:
and (4) molding detection treatment: detecting the curing molding states of the composition A and the composition B in the step (3) and judging whether the subsequent steps can be carried out or not;
and (5) performing negative pressure composite treatment: placing the composition A and the composition B which are qualified in the detection in the step (4) into a sealed container to be stacked mutually, and carrying out negative pressure suction treatment on the sealed container by a suction device so as to keep the negative pressure state of the sealed container and enable the sealed container to form an AB complex;
and (6) ultraviolet curing treatment: carrying out ultraviolet irradiation on the AB compound in the step (5) by virtue of an ultraviolet irradiation device to accelerate the curing and forming effect so as to form the completely cured and formed AB compound;
step (7) fluid polishing treatment: carrying out fluid polishing on the surface of the AB composite completely cured and molded in the step (6) by virtue of a fluid polishing device to enable the surface roughness to reach the required standard, and finally realizing the manufacturing of the smooth foaming plate;
The rubber in the step (1) is any one of silicon rubber, nitrile rubber and polyvinyl chloride;
the resin in the step (2) is any one of phenolic resin and epoxy resin;
the qualified detection standard in the step (4) is 30-50% of the curing and forming completion degree of the composition A and 40-60% of the curing and forming completion degree of the composition B.
2. The method of claim 1, wherein the two molds in step (3) are formed in any one of a sheet, a strip and a block, and the thickness of the mold for molding the composition B is 15% to 30% of that of the mold for molding the composition A.
3. The method of claim 1, wherein the step (5) is performed in such a way that the composition B is placed on top of the composition A and the lower position of the composition A is in the suction direction of the negative pressure suction device.
4. The method of claim 1, wherein the UV irradiation device in step (6) is located above the composition B, and the UV irradiation direction is directly below the composition B.
5. The method of claim 1, wherein the fluid polishing region of step (7) is a surface of the composition B in the AB composite, and the roughness standard after polishing is 0.03-0.08 Ra.
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| CN202011352763.4A CN112574566B (en) | 2020-11-27 | 2020-11-27 | Method for manufacturing smooth surface foaming plate |
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| CN202011352763.4A CN112574566B (en) | 2020-11-27 | 2020-11-27 | Method for manufacturing smooth surface foaming plate |
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| AU775758B2 (en) * | 2000-06-20 | 2004-08-12 | Roberto De Toffol | A method of manufacturing syntactic foam |
| WO2011074611A1 (en) * | 2009-12-18 | 2011-06-23 | 旭化成建材株式会社 | Phenolic resin foamed plate and method for producing same |
| JP6007818B2 (en) * | 2013-02-13 | 2016-10-12 | 株式会社ブリヂストン | Rubber composition for hose and hose |
| CN104072941B (en) * | 2014-07-18 | 2016-04-06 | 锦州市好为尔保温材料有限公司 | A kind of nano modification phenolic foam heat insulation plate and preparation method thereof |
| CN107265998A (en) * | 2017-06-22 | 2017-10-20 | 合肥励仙电力工程有限公司 | A kind of floor of energy-conserving and environment-protective and preparation method thereof |
| CN109483895A (en) * | 2018-12-14 | 2019-03-19 | 天津市天德橡塑机械股份有限公司 | The production technology and equipments that MULTILAYER COMPOSITE thickens are carried out for plastic foamed plate |
| CN110982189B (en) * | 2019-11-13 | 2021-10-22 | 佛山佛塑科技集团股份有限公司 | PVC structural foam and preparation method thereof |
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