CN112480570A - PVC moulding and hot press for producing same - Google Patents
PVC moulding and hot press for producing same Download PDFInfo
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- CN112480570A CN112480570A CN202011377586.5A CN202011377586A CN112480570A CN 112480570 A CN112480570 A CN 112480570A CN 202011377586 A CN202011377586 A CN 202011377586A CN 112480570 A CN112480570 A CN 112480570A
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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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
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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
- C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
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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
- C08J9/0095—Mixtures of at least two compounding ingredients belonging to different one-dot groups
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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
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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
- C08J2471/00—Characterised by the use of polyethers obtained by reactions forming an ether link in the main chain; Derivatives of such polymers
- C08J2471/02—Polyalkylene oxides
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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
- C08J2497/00—Characterised by the use of lignin-containing materials
- C08J2497/02—Lignocellulosic material, e.g. wood, straw or bagasse
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
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- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
The invention provides a PVC decorative line and a hot press for producing the same. The PVC decorative line comprises the following raw materials in parts by weight: 80-100 parts of PVC resin, 30-40 parts of calcium carbonate, 20-25 parts of calcium powder, 15-20 parts of wood powder, 15-25 parts of polyethylene glycol and 4-8 parts of heat stabilizer. The invention provides a PVC decorative molding and a hot press for producing the same, wherein the PVC decorative molding mainly takes PVC resin, calcium carbonate, calcium powder and wood powder as basic raw materials, the single basic material of the traditional molding is changed by adding the calcium carbonate and the calcium powder, the original internal structure composition is changed by utilizing the properties of the calcium carbonate and the calcium powder, so that the internal compressive strength is effectively improved, the brittleness degree is further improved, the external and internal stability of the PVC resin is effectively improved through auxiliary agents such as a heat stabilizer, stearic acid, polyethylene wax and the like, the original performance cannot be influenced, and the PVC decorative molding cannot be easily damaged due to the influence of external factors under the external condition for a long time.
Description
Technical Field
The invention relates to the field of PVC decorative lines, in particular to a PVC decorative line and a hot press for producing the same.
Background
The PVC decorative board is a decorative board prepared by taking PVC (polyvinyl chloride) as a base material, adding raw materials such as filler, stabilizer, pigment and the like, mixing, extruding, cutting and the like, has the characteristics of light weight, heat insulation, heat preservation, moisture resistance, flame retardance, simple and convenient construction and the like, has various specifications, colors and patterns and extremely rich decoration, can be applied to decoration of inner walls and suspended ceilings of rooms, is one of the most widely applied decorative materials in plastic materials, has various wood grains or patterns on the board surface, is bright and flat, bright and beautiful in color and luster, has higher wear resistance, heat resistance, cold resistance, fire resistance and other good physical properties, can be used for manufacturing walls and roofs of many high-grade houses, and can be used for manufacturing work tables of cabinets, tables, beds and precision instruments, experiment tables of laboratories, televisions, radios and other broadcasting telecommunication equipment, the novel decorative plate is mostly adopted.
The wood grain-imitated PVC decorative line belongs to one of PVC decorative lines, the surface of the wood grain-imitated PVC decorative line is provided with a pattern similar to wood grain, the wood grain-imitated PVC decorative line is widely applied to stone interior decoration, and when the wood grain-imitated PVC decorative line is used, the whole wood grain-imitated PVC decorative line is relatively fragile because the interior material of the wood grain-imitated PVC decorative line is mainly PVC resin, and the pressure bearing capacity is obviously reduced under the influence of oxidation or high temperature when being in an external environment for a long time.
Therefore, it is necessary to provide a PVC molding and a hot press for producing the same to solve the above technical problems.
Disclosure of Invention
The invention provides a PVC decorative line and a hot press for producing the same, which solve the problems that the existing wood grain decorative line is relatively large in brittleness, and the pressure-bearing capacity is obviously reduced under the influence of oxidation or high temperature when being in an external environment for a long time.
In order to solve the technical problems, the PVC decorative line provided by the invention comprises the following raw materials in parts by weight:
80-100 parts of PVC resin, 30-40 parts of calcium carbonate, 20-25 parts of calcium powder, 15-20 parts of wood powder, 15-25 parts of polyethylene glycol, 4-8 parts of heat stabilizer, 3-6 parts of stearic acid, 2-4 parts of polyethylene wax, 6-10 parts of plasticizer, 6-9 parts of toughening agent, 2-5 parts of antioxidant, 3-7 parts of foaming agent and 5-9 parts of composite stabilizer.
Preferably, the composition comprises the following raw materials in parts by weight:
100 parts of PVC resin, 30 parts of calcium carbonate, 20 parts of calcium powder, 20 parts of wood powder, 15 parts of polyethylene glycol, 8 parts of heat stabilizer, 3 parts of stearic acid, 4 parts of polyethylene wax, 6 parts of plasticizer, 6 parts of toughening agent, 2 parts of antioxidant, 3 parts of foaming agent and 9 parts of composite stabilizer.
Preferably, the preparation method of the PVC decorative line comprises the following steps:
s1, putting the PVC resin into a grinder, and grinding the PVC resin into powder for later use;
s2, sequentially pouring the PVC resin powder prepared in the S1, calcium carbonate, calcium powder and wood powder into a mixer in proportion, mixing and stirring at a high temperature for 25-30 minutes, and cooling to obtain a mixture A;
s3, pouring the heat stabilizer, stearic acid, polyethylene wax and the plasticizer into a stirrer in proportion, stirring the mixture in the stirrer from low speed to high speed for 30 to 35 minutes, then respectively adding the flexibilizer, the antioxidant, the foaming agent and the composite stabilizer in proportion, continuously stirring the mixture for 20 to 25 minutes at high temperature, and taking the mixture out to obtain a mixture B;
s4, slowly pouring the mixture B prepared in the S3 into the mixture A prepared in the S2, stirring the mixture A and the mixture B at a low speed by a mixer for 40-45 minutes, taking out the mixture after stirring, and cooling to obtain a spare material;
s5, loading the spare material prepared in the S4 into an extruder, adjusting the internal temperature of the hot press to 120-150 ℃, controlling the discharging speed and the discharging amount of a discharging barrel of the hot press, and meanwhile placing a die at the discharging port of the hot press;
s6, extruding the spare materials into the die through an extruder, placing the die into cooling equipment for cooling after injection molding is completed, taking out the die after treatment for 15-20 minutes, and demolding the lines formed inside the die to obtain line blanks;
s7, drawing the line blank prepared in the step S6 to a cutting table, cutting off redundant leftover materials on the line blank, painting the outside of the line, airing after painting is finished, cutting the line blank into required length, and finally carrying out hot pressing treatment through a hot press to finally obtain the qualified PVC decorative line.
Preferably, the particle size of the PVC resin powder ground in S1 is 100-120 meshes, and before grinding, the PVC resin needs to be screened to remove the impurities mixed therein.
Preferably, the temperature in the S2 is 150-160 ℃ during stirring, and after the stirring of the mixture is finished, the mixture is cooled to 60-65 ℃.
Preferably, the transition time of the stirrer from low speed to high speed in S3 is 10-15 minutes, the stirring temperature for adding the toughening agent, the antioxidant, the foaming agent and the composite stabilizer is 110-120 ℃, and the obtained mixture B is in a white molten state.
Preferably, before the die in S4 is used, the injection molding groove needs to be cleaned, and an anti-sticking agent is uniformly coated on the injection molding groove, and the discharge amount and the discharge speed of the hot press need to be adapted and adjusted according to the specification of the die actually used.
The utility model provides a hot press is used in production of PVC moulding, includes the main part frame, the both sides of main part frame bottom all are provided with elevation structure, elevation structure includes two electric telescopic handle and four setting elements, electric telescopic handle's bottom fixedly connected with supports the base, the bottom of setting element with the top fixed connection who supports the base, buffer spring has been cup jointed to the surface of setting element.
Preferably, two device grooves and four moving grooves are formed in two sides of the bottom of the main body rack, the electric telescopic rod is arranged in the device grooves, the outer portion of the positioning rod is connected with the inner portions of the moving grooves in a sliding mode, and the top end of the buffer spring is fixedly connected with the tops of the inner surfaces of the moving grooves.
Compared with the prior art, the PVC moulding and the hot press for producing the same have the following beneficial effects:
the invention provides a PVC decorative molding and a hot press for producing the same, wherein the PVC decorative molding mainly takes PVC resin, calcium carbonate, calcium powder and wood powder as basic raw materials, the single basic material of the traditional molding is changed by adding the calcium carbonate and the calcium powder, the original internal structure composition is changed by utilizing the properties of the calcium carbonate and the calcium powder, so that the internal compressive strength is effectively improved, the brittleness degree is further improved, the external and internal stability of the PVC resin is effectively improved through auxiliary agents such as a heat stabilizer, stearic acid, polyethylene wax and the like, the original performance cannot be influenced, and the PVC decorative molding cannot be easily damaged due to the influence of external factors under the external condition for a long time.
Drawings
FIG. 1 is a schematic structural view of the exterior of a hot press for producing PVC molding according to the present invention;
fig. 2 is a schematic structural view of a part of the inside of the main body housing shown in fig. 1.
Reference numbers in the figures: 1. the device comprises a main body frame, 2, a lifting structure, 21, an electric telescopic rod, 22, a positioning piece, 23, a supporting base, 24, a buffer spring, 3, a device groove, 4 and a moving groove.
Detailed Description
The invention is further described with reference to the following figures and embodiments. Please refer to fig. 1 and fig. 2 in combination, wherein fig. 1 is a schematic structural diagram of an exterior of a hot press for producing a PVC molding according to the present invention; fig. 2 is a schematic structural view of a part of the inside of the main body housing shown in fig. 1. The PVC decorative line comprises the following raw materials in parts by weight:
80-100 parts of PVC resin, 30-40 parts of calcium carbonate, 20-25 parts of calcium powder, 15-20 parts of wood powder, 15-25 parts of polyethylene glycol, 4-8 parts of heat stabilizer, 3-6 parts of stearic acid, 2-4 parts of polyethylene wax, 6-10 parts of plasticizer, 6-9 parts of toughening agent, 2-5 parts of antioxidant, 3-7 parts of foaming agent and 5-9 parts of composite stabilizer.
The composition comprises the following raw materials in parts by weight:
100 parts of PVC resin, 30 parts of calcium carbonate, 20 parts of calcium powder, 20 parts of wood powder, 15 parts of polyethylene glycol, 8 parts of heat stabilizer, 3 parts of stearic acid, 4 parts of polyethylene wax, 6 parts of plasticizer, 6 parts of toughening agent, 2 parts of antioxidant, 3 parts of foaming agent and 9 parts of composite stabilizer.
The preparation method of the PVC decorative line comprises the following steps:
s1, putting the PVC resin into a grinder, and grinding the PVC resin into powder for later use;
s2, sequentially pouring the PVC resin powder prepared in the S1, calcium carbonate, calcium powder and wood powder into a mixer in proportion, mixing and stirring at a high temperature for 25-30 minutes, and cooling to obtain a mixture A;
s3, pouring the heat stabilizer, stearic acid, polyethylene wax and the plasticizer into a stirrer in proportion, stirring the mixture in the stirrer from low speed to high speed for 30 to 35 minutes, then respectively adding the flexibilizer, the antioxidant, the foaming agent and the composite stabilizer in proportion, continuously stirring the mixture for 20 to 25 minutes at high temperature, and taking the mixture out to obtain a mixture B;
s4, slowly pouring the mixture B prepared in the S3 into the mixture A prepared in the S2, stirring the mixture A and the mixture B at a low speed by a mixer for 40-45 minutes, taking out the mixture after stirring, and cooling to obtain a spare material;
s5, loading the spare material prepared in the S4 into an extruder, adjusting the internal temperature of the hot press to 120-150 ℃, controlling the discharging speed and the discharging amount of a discharging barrel of the extruder, and simultaneously placing a die at the discharging port of the hot press;
s6, extruding the spare materials into the die through an extruder, placing the die into cooling equipment for cooling after injection molding is completed, taking out the die after treatment for 15-20 minutes, and demolding the lines formed inside the die to obtain line blanks;
s7, drawing the line blank prepared in the step S6 to a cutting table, cutting off redundant leftover materials on the line blank, painting the outside of the line, airing after painting is finished, cutting the line blank into required length, and finally carrying out hot pressing treatment through a hot press to finally obtain the qualified PVC decorative line.
The particle size of the PVC resin powder ground in the S1 is 100-120 meshes, and the PVC resin needs to be screened before grinding to remove impurities mixed in the PVC resin.
The temperature in the S2 is 150-160 ℃ during stirring, and after the mixture is stirred, the mixture is cooled to 60-65 ℃.
The transition time from low speed to high speed of the stirrer in the S3 is 10-15 minutes, the stirring temperature for adding the toughening agent, the antioxidant, the foaming agent and the composite stabilizer is 110-120 ℃, and the obtained mixture B is in a white molten state.
Before the S4 die is used, the injection molding groove needs to be cleaned, the anti-sticking agent is uniformly coated on the injection molding groove, and the discharge amount and the discharge speed of the hot press need to be adapted and adjusted according to the specification of the die actually used.
The utility model provides a hot press is used in production of PVC moulding, includes main part frame 1, the both sides of 1 bottom of main part frame all are provided with elevation structure 2, elevation structure 2 includes two electric telescopic handle 21 and four setting element 22, electric telescopic handle 21's bottom fixedly connected with supports base 23, setting element 22's bottom with support base 23's top fixed connection, buffer spring 24 has been cup jointed to setting element 22's surface.
Two device grooves 3 and four moving grooves 4 have all been seted up to the both sides of 2 bottoms of main part frame, electric telescopic handle 21 set up in the inside in device groove 3, the outside of locating lever 22 with the inside sliding connection of moving groove 4, buffer spring 24 the top with the top fixed connection of moving groove 4 internal surface.
The two lifting structures 2 are respectively positioned at the left side and the right side of the main body frame 1, the electric telescopic rod 21 is externally connected with a power supply and is controlled to stretch by an external switch, the supporting base 23 is positioned at the bottom of the main body frame 2 to provide support for the main body frame 1, the bottom end of the positioning piece 22 is fixedly connected with the top of the supporting base 23, and the supporting base 23 is assisted by sliding in the moving groove 4, through the arrangement of the lifting structures 2, when the device is placed on the uneven ground for use, if the device shakes, the device can be adjusted by controlling the lifting structures 2 at corresponding positions, the supporting base 23 can be driven by the stretching of the electric telescopic rod 21 to move downwards, the bottom of the device is adjusted, so that the device is kept in a stable state, and when the height of the device is required to be adjusted, the height of the device can also be adjusted by using the lifting structures, the equipment is very flexible and very safe when in use.
The working principle of the PVC moulding and the hot press for producing the same provided by the invention is as follows:
this PVC moulding mainly uses the PVC resin, calcium carbonate, calcium powder and wooden powder are basic material, wherein wooden powder can make the lines have imitative grain pattern, through adding calcium carbonate and calcium powder, change the single base material of traditional lines, the nature that utilizes calcium carbonate and calcium powder has changed original inner structure and has constituteed, make its inside compressive strength obtain effectively promoting, the fragility degree obtains further improvement, through the heat stabilizer, stearic acid, auxiliaries such as low molecular weight polyethylene, the effectual PVC resin outside and inside stability that has promoted, and can not lead to the fact the influence to original performance, make it have outstanding anticorrosive, anti-oxidant, resistance to compression and high temperature resistant effect, make its life prolong greatly, be in under external condition for a long time, can not receive external factor easily and influence and appear the damage.
Compared with the prior art, the PVC moulding and the hot press for producing the same have the following beneficial effects:
this PVC moulding mainly uses PVC resin, calcium carbonate, calcium powder and wooden powder are basic material, through adding calcium carbonate and calcium powder, change the single base material of traditional lines, the nature that utilizes calcium carbonate and calcium powder has changed original inner structure and has constituteed, make its inside compressive strength obtain effectively promoting, the fragility degree obtains further improvement, through the heat stabilizer, stearic acid, auxiliaries such as low molecular weight polyethylene, the effectual outside and inside stability of PVC resin that has promoted, and can not lead to the fact the influence to original performance, be in under the external condition for a long time, can not receive external factor easily and influence and the damage appears.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (9)
1. The PVC decorative line is characterized by comprising the following raw materials in parts by weight:
80-100 parts of PVC resin, 30-40 parts of calcium carbonate, 20-25 parts of calcium powder, 15-20 parts of wood powder, 15-25 parts of polyethylene glycol, 4-8 parts of heat stabilizer, 3-6 parts of stearic acid, 2-4 parts of polyethylene wax, 6-10 parts of plasticizer, 6-9 parts of toughening agent, 2-5 parts of antioxidant, 3-7 parts of foaming agent and 5-9 parts of composite stabilizer.
2. The PVC moulding according to claim 1, comprising the following raw materials in parts by weight:
100 parts of PVC resin, 30 parts of calcium carbonate, 20 parts of calcium powder, 20 parts of wood powder, 15 parts of polyethylene glycol, 8 parts of heat stabilizer, 3 parts of stearic acid, 4 parts of polyethylene wax, 6 parts of plasticizer, 6 parts of toughening agent, 2 parts of antioxidant, 3 parts of foaming agent and 9 parts of composite stabilizer.
3. The PVC molding according to claim 1, wherein the method of making the PVC molding comprises the steps of:
s1, putting the PVC resin into a grinder, and grinding the PVC resin into powder for later use;
s2, sequentially pouring the PVC resin powder prepared in the S1, calcium carbonate, calcium powder and wood powder into a mixer in proportion, mixing and stirring at a high temperature for 25-30 minutes, and cooling to obtain a mixture A;
s3, pouring the heat stabilizer, stearic acid, polyethylene wax and the plasticizer into a stirrer in proportion, stirring the mixture in the stirrer from low speed to high speed for 30 to 35 minutes, then respectively adding the flexibilizer, the antioxidant, the foaming agent and the composite stabilizer in proportion, continuously stirring the mixture for 20 to 25 minutes at high temperature, and taking the mixture out to obtain a mixture B;
s4, slowly pouring the mixture B prepared in the S3 into the mixture A prepared in the S2, stirring the mixture A and the mixture B at a low speed by a mixer for 40-45 minutes, taking out the mixture after stirring, and cooling to obtain a spare material;
s5, loading the spare material prepared in the S4 into a hot press, adjusting the internal temperature of the hot press to 120-150 ℃, controlling the discharging speed and the discharging amount of a discharging barrel of the extruder, and meanwhile placing a die at the discharging port of the hot press;
s6, extruding the spare materials into the die through an extruder, placing the die into cooling equipment for cooling after injection molding is completed, taking out the die after treatment for 15-20 minutes, and demolding the lines formed inside the die to obtain line blanks;
s7, drawing the line blank prepared in the step S6 to a cutting table, cutting off redundant leftover materials on the line blank, painting the outside of the line, airing after painting is finished, cutting the line blank into required length, and finally carrying out hot pressing treatment through a hot press to finally obtain the qualified PVC decorative line.
4. The PVC decorative molding as defined in claim 3, wherein the particle size of the PVC resin powder ground in S1 is 100-120 meshes, and the PVC resin is screened to remove the impurities mixed therein before grinding.
5. The PVC molding according to claim 3, wherein the temperature of S2 is 150 ℃ and 160 ℃ during stirring, and after the mixture is stirred, the mixture is cooled to 60-65 ℃.
6. The PVC molding according to claim 3, wherein the transition time from low speed to high speed of the stirrer in S3 is 10-15 minutes, the stirring temperature for adding the toughening agent, the antioxidant, the foaming agent and the composite stabilizer is 110-120 ℃, and the obtained mixture B is in a white molten state.
7. The PVC molding according to claim 3, wherein before the mold in S4 is used, the injection molding groove needs to be cleaned and coated with the anti-sticking agent uniformly, and the discharge amount and the discharge speed of the hot press need to be adjusted according to the specification of the mold in actual use.
8. The utility model provides a hot press is used in production of PVC moulding, a serial communication port, including the main part frame, the both sides of main part frame bottom all are provided with elevation structure, elevation structure includes two electric telescopic handle and four setting elements, electric telescopic handle's bottom fixedly connected with supports the base, the bottom of setting element with the top fixed connection who supports the base, buffer spring has been cup jointed to the surface of setting element.
9. The hot press for producing PVC decorative molding according to claim 8, wherein two installation grooves and four moving grooves are formed on both sides of the bottom of the main body frame, the electric telescopic rod is disposed inside the installation grooves, the outside of the positioning rod is slidably connected with the inside of the moving grooves, and the top end of the buffer spring is fixedly connected with the top of the inner surface of the moving grooves.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011377586.5A CN112480570A (en) | 2020-11-30 | 2020-11-30 | PVC moulding and hot press for producing same |
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| CN202011377586.5A CN112480570A (en) | 2020-11-30 | 2020-11-30 | PVC moulding and hot press for producing same |
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| CN112480570A true CN112480570A (en) | 2021-03-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113150463A (en) * | 2021-03-31 | 2021-07-23 | 华南理工大学 | Polymer composite shape-stabilized phase change material and preparation method thereof |
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| CN207889115U (en) * | 2018-01-19 | 2018-09-21 | 东莞市黄沙电子科技有限公司 | A kind of panel hot press |
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2020
- 2020-11-30 CN CN202011377586.5A patent/CN112480570A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105153596A (en) * | 2015-10-09 | 2015-12-16 | 上海艳紫化工科技有限公司 | PVC mouldings and preparation method thereof |
| WO2018058766A1 (en) * | 2016-09-29 | 2018-04-05 | 安吉天则塑业有限公司 | Formaldehyde-free stone plastic composite board formed by hot-press forming |
| CN207889115U (en) * | 2018-01-19 | 2018-09-21 | 东莞市黄沙电子科技有限公司 | A kind of panel hot press |
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| CN113150463B (en) * | 2021-03-31 | 2022-12-16 | 华南理工大学 | Polymer composite shape-stabilized phase change material and preparation method thereof |
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