CN112300462A - Disposable foaming pad and preparation method thereof - Google Patents
Disposable foaming pad and preparation method thereof Download PDFInfo
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- CN112300462A CN112300462A CN202011349200.XA CN202011349200A CN112300462A CN 112300462 A CN112300462 A CN 112300462A CN 202011349200 A CN202011349200 A CN 202011349200A CN 112300462 A CN112300462 A CN 112300462A
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- foaming
- rubber sheet
- rubber
- reinforcing
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- 238000005187 foaming Methods 0.000 title claims abstract description 56
- 238000002360 preparation method Methods 0.000 title description 5
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 38
- 239000004088 foaming agent Substances 0.000 claims abstract description 19
- 239000011787 zinc oxide Substances 0.000 claims abstract description 19
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 18
- 235000021355 Stearic acid Nutrition 0.000 claims abstract description 16
- 239000003086 colorant Substances 0.000 claims abstract description 16
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims abstract description 16
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000008117 stearic acid Substances 0.000 claims abstract description 16
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 15
- 230000003712 anti-aging effect Effects 0.000 claims abstract description 13
- 239000002270 dispersing agent Substances 0.000 claims abstract description 13
- 239000012744 reinforcing agent Substances 0.000 claims abstract description 13
- 244000043261 Hevea brasiliensis Species 0.000 claims abstract description 12
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 12
- 229920003052 natural elastomer Polymers 0.000 claims abstract description 12
- 229920001194 natural rubber Polymers 0.000 claims abstract description 12
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 9
- 239000004902 Softening Agent Substances 0.000 claims abstract description 7
- 230000001050 lubricating effect Effects 0.000 claims abstract description 7
- 229920003048 styrene butadiene rubber Polymers 0.000 claims abstract description 7
- 229920001971 elastomer Polymers 0.000 claims description 64
- 239000005060 rubber Substances 0.000 claims description 64
- 238000001816 cooling Methods 0.000 claims description 12
- 238000007599 discharging Methods 0.000 claims description 12
- 238000004073 vulcanization Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 11
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical group O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 6
- 238000001125 extrusion Methods 0.000 claims description 6
- 238000004898 kneading Methods 0.000 claims description 6
- 238000005461 lubrication Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 239000012188 paraffin wax Substances 0.000 claims description 6
- 239000006260 foam Substances 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 238000005520 cutting process Methods 0.000 claims description 4
- 238000007493 shaping process Methods 0.000 claims description 4
- 239000008118 PEG 6000 Substances 0.000 claims description 3
- 229920002584 Polyethylene Glycol 6000 Polymers 0.000 claims description 3
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 claims description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical group OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims description 3
- 238000005553 drilling Methods 0.000 claims description 3
- 238000004049 embossing Methods 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 229920001223 polyethylene glycol Polymers 0.000 claims description 3
- 238000009966 trimming Methods 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- -1 white factice Substances 0.000 claims description 3
- RKQOSDAEEGPRER-UHFFFAOYSA-L zinc diethyldithiocarbamate Chemical compound [Zn+2].CCN(CC)C([S-])=S.CCN(CC)C([S-])=S RKQOSDAEEGPRER-UHFFFAOYSA-L 0.000 claims description 3
- 239000000314 lubricant Substances 0.000 claims 2
- 239000002674 ointment Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Classifications
-
- 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
- C08J9/06—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 by a chemical blowing agent
- C08J9/10—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 by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
- C08J9/102—Azo-compounds
- C08J9/103—Azodicarbonamide
-
- 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
- C08J9/0014—Use of organic additives
- C08J9/0023—Use of organic additives containing oxygen
-
- 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
-
- 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
- C08J9/0066—Use of inorganic compounding ingredients
-
- 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
-
- 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
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/04—N2 releasing, ex azodicarbonamide or nitroso compound
-
- 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
- C08J2309/00—Characterised by the use of homopolymers or copolymers of conjugated diene hydrocarbons
- C08J2309/06—Copolymers with styrene
-
- 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
- C08J2407/00—Characterised by the use of natural rubber
-
- 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
- C08J2491/00—Characterised by the use of oils, fats or waxes; Derivatives thereof
-
- 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
- C08J2491/00—Characterised by the use of oils, fats or waxes; Derivatives thereof
- C08J2491/06—Waxes
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Emergency Medicine (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
The invention relates to the technical field of foaming cushions, and particularly discloses a disposable foaming cushion which comprises the following components of natural rubber, styrene-butadiene rubber, a softening agent, a reinforcing agent, a dispersing agent, a physical lubricating anti-aging agent, stearic acid, white factice, a foaming agent, a reinforcing coloring agent, zinc oxide, a foaming auxiliary agent, a cross-linking agent and an accelerating agent.
Description
Technical Field
The invention relates to the technical field of foaming pads, and particularly discloses a disposable foaming pad and a preparation method thereof.
Background
The natural rubber has good rebound resilience, elongation, tensile strength and tearing strength; the styrene butadiene rubber has better elasticity, wear resistance, crack resistance and wet skid resistance; the two rubbers are used together to achieve the ideal effect. The local tyrant pad on the market at present is made of natural rubber through a plasticizing and rolling method, foaming and molding and then cutting and compounding, the product is difficult to process, the density of the finished product is high, the production cost is high, the taste is heavy, the product is easy to crack after long-term use, the color is single (mainly black), the appearance is not beautiful, and the market prospect and the depth are limited.
Disclosure of Invention
The invention provides a disposable foaming pad and a preparation method thereof aiming at the defects of the prior art.
The technical scheme adopted by the invention for solving the problems is as follows:
a disposable foaming pad comprises 40-50PHR of natural rubber, 50-60PHR of styrene-butadiene rubber, 30-50PHR of softener, 70-90PHR of reinforcing agent, 4-6PHR of dispersing agent, 4-6PHR of physical lubrication anti-aging agent, 1-3PHR of stearic acid, 7-9PHR of white ointment, 10-30PHR of foaming agent, 10-30PHR of reinforcing coloring agent, 2-4PHR of zinc oxide, 8-10PHR of foaming auxiliary agent, 1PHR of cross-linking agent and 3-5PHR of accelerating agent.
Further, the softener is 40PHR, the reinforcing agent is 80PHR, the dispersant is 5PHR, the physical lubrication anti-aging agent is 5PHR, the stearic acid is 2PHR, the white ointment is 8PHR, the foaming agent is 20PHR, the reinforcing colorant is 20PHR, the zinc oxide is 3PHR, the foaming auxiliary agent is 9PHR, the crosslinking agent is 1PHR, and the accelerator is 4 PHR.
Further, the softening agent is naphthenic oil KN4006, the reinforcing agent is talcum powder 1250 meshes, the dispersing agent is PEG6000, the physical lubricating anti-aging agent is 58# semi-refined paraffin, the stearic acid is SA-1801, the foaming agent is ADC D10, the reinforcing coloring agent is color paste, the zinc oxide is 99.7% of zinc oxide by an indirect method, and the foaming auxiliary agent is a low-temperature foaming agent ACP-J.
Furthermore, the accelerator is one of accelerator MBT, accelerator DPTT and accelerator ZDEC.
The invention also provides a method for manufacturing the disposable foaming pad, which comprises the following steps,
s1 banburying
Putting natural rubber and butadiene styrene rubber into a 110L internal mixer, pressurizing to 6-8 kg, kneading for 60 seconds, sequentially adding talcum powder, foaming agent, reinforcing coloring agent, white factice, stearic acid, semi-refined paraffin, PEG and naphthenic oil, pressurizing to 6-8 kg, kneading for 10 minutes to 108 ℃, and discharging.
S2: open mill
And (3) conveying the rubber material subjected to internal mixing in the S1 to an open mill for plastication for 2-5 minutes, keeping the temperature of a roller of the open mill at 25-35 ℃, then discharging the rubber sheet by using a cutter, cooling the rubber sheet to the normal temperature by placing the rubber sheet on a rubber cooling frame, and storing the rubber sheet for more than 12 hours for later use, wherein the thickness of the rubber sheet is 6-8 mm, and the width of the rubber sheet is 35-38 cm.
S3: and (4) weighing 90 kg of the spare rubber sheet in the step S2 by using electrons, putting the spare rubber sheet into a 110L internal mixer, pressurizing to 6-8 kg, plasticating for 60 seconds, sequentially adding zinc oxide, foaming auxiliary agent, S-80 and accelerator, pressurizing to 6-8 kg, plasticating for 2-4 minutes at the temperature of 60-80 ℃, and discharging.
S4: and (5) conveying the rubber material obtained in the step S3 to a 22-inch drilling roller automatic open mill by a lifter for plasticating for 2 minutes, keeping the roller temperature at 25-35 ℃, discharging the rubber sheet, wherein the thickness of the rubber sheet is 6-8 mm, the width of the rubber sheet is 15-18 cm, and placing the rubber sheet, and cooling the rubber sheet by a 750W fan to normal temperature.
S5: and (5) putting the rubber sheet obtained in the step (S4) into a feeding port of a 150 vacuumizing extruder for feeding, performing extrusion forming, continuously performing extrusion forming to obtain a rubber sheet with the width of 1000 mm and the thickness of 4 mm, feeding the rubber sheet into a hot air type vulcanization foaming furnace, keeping the temperature of the rubber sheet at 50-55 ℃, and keeping the pressure of the extruder at 4-6 MPA.
S6: and (4) conveying the rubber sheet obtained in the step S5 to a 7-section vulcanization foaming furnace, continuously advancing through a rotating roller with the diameter of 50 mm, sequentially and synchronously vulcanizing and foaming, performing vulcanization foaming shaping to obtain a high-elasticity foaming body with the width of 1200-1500 mm and the thickness of 8-9 mm, trimming, cutting off once every 10 m, cooling to normal temperature by using a continuous cold-determining device, setting the temperatures of 1-7 sections of the foaming furnace to be 125 ℃, 135 ℃, 145 ℃, 150 ℃, 155 ℃, 160 ℃, 165 ℃ and setting the vulcanization time to be 20-40 minutes.
Further, in step S6, embossing is performed between the first section and the second section of the foaming furnace.
The invention has the beneficial effects that the disposable foaming pad comprises the components of natural rubber, styrene-butadiene rubber, a softening agent, a reinforcing agent, a dispersing agent, a physical lubricating anti-aging agent, stearic acid, white factice, a foaming agent, a reinforcing coloring agent, zinc oxide, a foaming auxiliary agent, a cross-linking agent and an accelerating agent, and the preparation method of the disposable foaming pad is prepared by banburying, open refining, pressurizing, shaping and vulcanizing, and compared with the existing foaming pad, the disposable foaming pad has the advantages of excellent ground gripping performance, slip resistance, skin affinity, good compatibility, good elasticity, light specific gravity, no taste, environmental friendliness, attractive appearance, capability of being matched with various colors, no crack, low cost, high benefit, wide application range, good market prospect and depth.
Detailed Description
Example 1: a disposable foaming pad comprises 40-50PHR of natural rubber, 50-60PHR of styrene-butadiene rubber, 30-50PHR of softener, 70-90PHR of reinforcing agent, 4-6PHR of dispersing agent, 4-6PHR of physical lubrication anti-aging agent, 1-3PHR of stearic acid, 7-9PHR of white ointment, 10-30PHR of foaming agent, 10-30PHR of reinforcing coloring agent, 2-4PHR of zinc oxide, 8-10PHR of foaming auxiliary agent, 1PHR of cross-linking agent and 3-5PHR of accelerating agent.
Specifically, the softener is 40PHR, the reinforcing agent is 80PHR, the dispersant is 5PHR, the physical lubrication anti-aging agent is 5PHR, the stearic acid is 2PHR, the white ointment is 8PHR, the foaming agent is 20PHR, the reinforcing colorant is 20PHR, the zinc oxide is 3PHR, the foaming aid is 9PHR, the crosslinking agent is 1PHR, and the accelerator is 4 PHR.
In a preferred embodiment of this embodiment, the softening agent is naphthenic oil KN4006, the reinforcing agent is talc powder of 1250 mesh, the dispersing agent is PEG6000, the physical lubrication anti-aging agent is 58# semi-refined paraffin, the stearic acid is SA-1801, the foaming agent is ADC D10, the reinforcing colorant is a color paste, the zinc oxide is 99.7% by indirect zinc oxide method, and the foaming aid is low-temperature foaming agent ACP-J.
Specifically, the accelerator is one of an accelerator MBT, an accelerator DPTT and an accelerator ZDEC.
The invention also provides a method for manufacturing the disposable foaming pad, which comprises the following steps,
s1 banburying
Putting natural rubber and butadiene styrene rubber into a 110L internal mixer, pressurizing to 6-8 kg, kneading for 60 seconds, sequentially adding talcum powder, foaming agent, reinforcing coloring agent, white factice, stearic acid, semi-refined paraffin, PEG and naphthenic oil, pressurizing to 6-8 kg, kneading for 10 minutes to 108 ℃, and discharging.
S2: open mill
And (3) conveying the rubber material subjected to internal mixing in the S1 to an open mill for plastication for 2-5 minutes, keeping the temperature of a roller of the open mill at 25-35 ℃, then discharging the rubber sheet by using a cutter, cooling the rubber sheet to the normal temperature by placing the rubber sheet on a rubber cooling frame, and storing the rubber sheet for more than 12 hours for later use, wherein the thickness of the rubber sheet is 6-8 mm, and the width of the rubber sheet is 35-38 cm.
S3: and (4) weighing 90 kg of the spare rubber sheet in the step S2 by using electrons, putting the spare rubber sheet into a 110L internal mixer, pressurizing to 6-8 kg, plasticating for 60 seconds, sequentially adding zinc oxide, foaming auxiliary agent, S-80 and accelerator, pressurizing to 6-8 kg, plasticating for 2-4 minutes at the temperature of 60-80 ℃, and discharging.
S4: and (5) conveying the rubber material obtained in the step S3 to a 22-inch drilling roller automatic open mill by a lifter for plasticating for 2 minutes, keeping the roller temperature at 25-35 ℃, discharging the rubber sheet, wherein the thickness of the rubber sheet is 6-8 mm, the width of the rubber sheet is 15-18 cm, and placing the rubber sheet, and cooling the rubber sheet by a 750W fan to normal temperature.
S5: and (5) putting the rubber sheet obtained in the step (S4) into a feeding port of a 150 vacuumizing extruder for feeding, performing extrusion forming, continuously performing extrusion forming to obtain a rubber sheet with the width of 1000 mm and the thickness of 4 mm, feeding the rubber sheet into a hot air type vulcanization foaming furnace, keeping the temperature of the rubber sheet at 50-55 ℃, and keeping the pressure of the extruder at 4-6 MPA.
S6: and (4) conveying the rubber sheet obtained in the step S5 to a 7-section vulcanization foaming furnace, continuously advancing through a rotating roller with the diameter of 50 mm, sequentially and synchronously vulcanizing and foaming, performing vulcanization foaming shaping to obtain a high-elasticity foaming body with the width of 1200-1500 mm and the thickness of 8-9 mm, trimming, cutting off once every 10 m, cooling to normal temperature by using a continuous cold-determining device, setting the temperatures of 1-7 sections of the foaming furnace to be 125 ℃, 135 ℃, 145 ℃, 150 ℃, 155 ℃, 160 ℃, 165 ℃ and setting the vulcanization time to be 20-40 minutes.
In a preferred embodiment of this embodiment, in step S6, embossing is performed between the first section and the second section of the foaming furnace.
The foam prepared and molded is cut, compounded, printed and packaged to be made into gaskets required by customers, such as sports pads, machinery, electric appliances, electronics, automobiles, high-speed rails and the like.
The invention relates to a disposable foaming pad, which comprises natural rubber, styrene-butadiene rubber, a softener, a reinforcing agent, a dispersing agent, a physical lubricating anti-aging agent, stearic acid, white factice, a foaming agent, a reinforcing coloring agent, zinc oxide, a foaming auxiliary agent, a cross-linking agent and an accelerant.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.
Claims (6)
1. A disposable foam pad characterized by: the natural rubber foaming agent comprises 40-50PHR of natural rubber, 50-60PHR of styrene-butadiene rubber, 30-50PHR of softening agent, 70-90PHR of reinforcing agent, 4-6PHR of dispersing agent, 4-6PHR of physical lubrication anti-aging agent, 1-3PHR of stearic acid, 7-9PHR of white factice, 10-30PHR of foaming agent, 10-30PHR of reinforcing coloring agent, 2-4PHR of zinc oxide, 8-10PHR of foaming auxiliary agent, 1PHR of cross-linking agent and 3-5PHR of accelerating agent.
2. A disposable foam pad according to claim 1 wherein: the lubricant comprises a softening agent, a reinforcing agent, a dispersing agent, a physical lubricating anti-aging agent, a stearic acid and a foaming aid, wherein the softening agent is 40PHR, the reinforcing agent is 80PHR, the dispersing agent is 5PHR, the physical lubricating anti-aging agent is 5PHR, the stearic acid is 2PHR, the white factice is 8PHR, the foaming agent is 20PHR, the reinforcing coloring agent is 20PHR, the zinc oxide is 3PHR, the foaming aid is 9PHR, the crosslinking agent is 1PHR, and the accelerator is 4 PHR.
3. A disposable foam pad according to claim 2 wherein: the lubricant is naphthenic oil KN4006, the reinforcing agent is talcum powder 1250 meshes, the dispersing agent is PEG6000, the physical lubricating anti-aging agent is 58# semi-refined paraffin, the stearic acid is SA-1801, the foaming agent is ADC D10, the reinforcing colorant is color paste, the zinc oxide is 99.7% of zinc oxide by a zinc oxide indirect method, and the foaming auxiliary agent is low-temperature foaming agent ACP-J.
4. A disposable foam pad according to claim 1 wherein: the accelerator is one of accelerator MBT, accelerator DPTT and accelerator ZDEC.
5. A method for manufacturing a disposable foaming pad is characterized by comprising the following steps: the method comprises the specific steps of carrying out,
s1 banburying
Putting natural rubber and butadiene styrene rubber into a 110L internal mixer, pressurizing to 6-8 kg, kneading for 60 seconds, sequentially adding talcum powder, foaming agent, reinforcing coloring agent, white factice, stearic acid, semi-refined paraffin, PEG and naphthenic oil, pressurizing to 6-8 kg, kneading for 10 minutes to 108 ℃, and discharging.
S2: open mill
And (3) conveying the rubber material subjected to internal mixing in the S1 to an open mill for plastication for 2-5 minutes, keeping the temperature of a roller of the open mill at 25-35 ℃, then discharging the rubber sheet by using a cutter, cooling the rubber sheet to the normal temperature by placing the rubber sheet on a rubber cooling frame, and storing the rubber sheet for more than 12 hours for later use, wherein the thickness of the rubber sheet is 6-8 mm, and the width of the rubber sheet is 35-38 cm.
S3: and (4) weighing 90 kg of the spare rubber sheet in the step S2 by using electrons, putting the spare rubber sheet into a 110L internal mixer, pressurizing to 6-8 kg, plasticating for 60 seconds, sequentially adding zinc oxide, foaming auxiliary agent, S-80 and accelerator, pressurizing to 6-8 kg, plasticating for 2-4 minutes at the temperature of 60-80 ℃, and discharging.
S4: and (5) conveying the rubber material obtained in the step S3 to a 22-inch drilling roller automatic open mill by a lifter for plasticating for 2 minutes, keeping the roller temperature at 25-35 ℃, discharging the rubber sheet, wherein the thickness of the rubber sheet is 6-8 mm, the width of the rubber sheet is 15-18 cm, and placing the rubber sheet, and cooling the rubber sheet by a 750W fan to normal temperature.
S5: and (5) putting the rubber sheet obtained in the step (S4) into a feeding port of a 150 vacuumizing extruder for feeding, performing extrusion forming, continuously performing extrusion forming to obtain a rubber sheet with the width of 1000 mm and the thickness of 4 mm, feeding the rubber sheet into a hot air type vulcanization foaming furnace, keeping the temperature of the rubber sheet at 50-55 ℃, and keeping the pressure of the extruder at 4-6 MPA.
S6: and (4) conveying the rubber sheet obtained in the step S5 to a 7-section vulcanization foaming furnace, continuously advancing through a rotating roller with the diameter of 50 mm, sequentially and synchronously vulcanizing and foaming, performing vulcanization foaming shaping to obtain a high-elasticity foaming body with the width of 1200-1500 mm and the thickness of 8-9 mm, trimming, cutting off once every 10 m, cooling to normal temperature by using a continuous cold-determining device, setting the temperatures of 1-7 sections of the foaming furnace to be 125 ℃, 135 ℃, 145 ℃, 150 ℃, 155 ℃, 160 ℃, 165 ℃ and setting the vulcanization time to be 20-40 minutes.
6. The method for manufacturing a disposable foaming pad according to claim 5, wherein the method comprises the following steps: in step S6, embossing is performed between the first section and the second section of the foaming furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011349200.XA CN112300462A (en) | 2020-11-26 | 2020-11-26 | Disposable foaming pad and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011349200.XA CN112300462A (en) | 2020-11-26 | 2020-11-26 | Disposable foaming pad and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112300462A true CN112300462A (en) | 2021-02-02 |
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| CN202011349200.XA Pending CN112300462A (en) | 2020-11-26 | 2020-11-26 | Disposable foaming pad and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114031823A (en) * | 2021-11-15 | 2022-02-11 | 南京曼润高分子科技研究院有限公司 | Novel rubber protective floor mat and preparation method thereof |
| CN115141434A (en) * | 2022-08-17 | 2022-10-04 | 合肥汇东橡塑有限公司 | Ethylene propylene diene monomer and styrene butadiene rubber combined extrusion foaming pad and preparation method thereof |
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| JP2001335653A (en) * | 2000-05-26 | 2001-12-04 | Mitsuboshi Belting Ltd | Rubber foaming composition using industrial waste rubber |
| CN101255242A (en) * | 2008-04-14 | 2008-09-03 | 常州市天晟塑胶化工有限公司 | Butadiene styrene rubber foaming plate and preparation thereof |
| CN102485778A (en) * | 2010-12-06 | 2012-06-06 | 际华三五一五皮革皮鞋有限公司 | Internal foaming rubber of dual density Goodyear outsole and preparation method thereof |
| CN105175830A (en) * | 2015-07-23 | 2015-12-23 | 易宝（福建）高分子材料股份公司 | Closed-cell two-step foamed material prepared from styrene butadiene rubber, natural rubber and EVA, and preparation method of closed-cell two-step foamed material |
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| JP2001335653A (en) * | 2000-05-26 | 2001-12-04 | Mitsuboshi Belting Ltd | Rubber foaming composition using industrial waste rubber |
| CN101255242A (en) * | 2008-04-14 | 2008-09-03 | 常州市天晟塑胶化工有限公司 | Butadiene styrene rubber foaming plate and preparation thereof |
| CN102485778A (en) * | 2010-12-06 | 2012-06-06 | 际华三五一五皮革皮鞋有限公司 | Internal foaming rubber of dual density Goodyear outsole and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114031823A (en) * | 2021-11-15 | 2022-02-11 | 南京曼润高分子科技研究院有限公司 | Novel rubber protective floor mat and preparation method thereof |
| CN115141434A (en) * | 2022-08-17 | 2022-10-04 | 合肥汇东橡塑有限公司 | Ethylene propylene diene monomer and styrene butadiene rubber combined extrusion foaming pad and preparation method thereof |
| CN115141434B (en) * | 2022-08-17 | 2023-02-28 | 合肥汇东橡塑有限公司 | Ethylene propylene diene monomer and styrene butadiene rubber combined extrusion foaming pad and preparation method thereof |
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