CN114851664A - Flexible silent floor and preparation method thereof - Google Patents
Flexible silent floor and preparation method thereof Download PDFInfo
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- CN114851664A CN114851664A CN202210549249.2A CN202210549249A CN114851664A CN 114851664 A CN114851664 A CN 114851664A CN 202210549249 A CN202210549249 A CN 202210549249A CN 114851664 A CN114851664 A CN 114851664A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
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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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0021—Combinations of extrusion moulding with other shaping operations combined with joining, lining or laminating
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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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
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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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
- B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
-
- 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
- B29C71/02—Thermal after-treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/065—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of foam
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/304—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/02—Flooring or floor layers composed of a number of similar elements
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/02—Flooring or floor layers composed of a number of similar elements
- E04F15/10—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials
- E04F15/107—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials composed of several layers, e.g. sandwich panels
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/18—Separately-laid insulating layers; Other additional insulating measures; Floating floors
- E04F15/20—Separately-laid insulating layers; Other additional insulating measures; Floating floors for sound insulation
- E04F15/206—Layered panels for sound insulation
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/22—Resiliently-mounted floors, e.g. sprung floors
- E04F15/225—Shock absorber members therefor
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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
- B29C71/00—After-treatment of articles without altering their shape; Apparatus therefor
- B29C71/02—Thermal after-treatment
- B29C2071/027—Tempering, i.e. heating an object to a high temperature and quenching it
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2266/00—Composition of foam
- B32B2266/02—Organic
- B32B2266/0214—Materials belonging to B32B27/00
- B32B2266/025—Polyolefin
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/10—Properties of the layers or laminate having particular acoustical properties
- B32B2307/102—Insulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/51—Elastic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2471/00—Floor coverings
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F2290/00—Specially adapted covering, lining or flooring elements not otherwise provided for
- E04F2290/04—Specially adapted covering, lining or flooring elements not otherwise provided for for insulation or surface protection, e.g. against noise, impact or fire
- E04F2290/041—Specially adapted covering, lining or flooring elements not otherwise provided for for insulation or surface protection, e.g. against noise, impact or fire against noise
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a flexible silent floor and a preparation method thereof.A silent layer is arranged between two layers of PVC hard base materials, so that a comfortable foot feeling can be achieved, and the effects of absorbing vibration and sound generated by the floor and enhancing sound insulation are achieved. Set up the silence layer between two-layer PVC stereoplasm base material, rather than set up the silence layer in floor bottom, the silence layer obtains the support of stereoplasm base material, and the pressure that unit area received reduces, is favorable to remaining depression to improve. Compared with the silencing layer obtained by the common azodicarbonamide foaming agent, the silencing layer has the advantages that the sound insulation effect is better, larger pressure can be borne, and larger resilience is realized, so that the floor has good residual concavity.
Description
Technical Field
The invention relates to the field of floor preparation, in particular to a flexible silent floor and a preparation method thereof.
Background
The hard PVC floor has excellent dimensional stability, high lock catch strength, convenient and quick installation, environmental protection and no toxicity, and the floor solves the problems of damp deformation and mildew of solid wood floors and formaldehyde of other decoration materials by virtue of excellent stability and durability, and is popular in developed countries in Europe and America and the sub-market. However, in the using process, the sound insulation effect of the hard PVC floor is poor, so that the floor with the sound insulation pad attached to the back surface of the hard PVC floor can be produced at any time, and the floor can achieve a certain sound insulation effect.
But because the use of mute point, the remaining concavity on floor exceeds standard, and PVC stereoplasm substrate feel and comfort level are not good moreover, and present customer experiences and follow-up operation requirement to the installation more and more high, consequently needs a remaining concavity qualified, gives sound insulation effectual and feel comfortable PVC stereoplasm floor.
Disclosure of Invention
The purpose of the invention is as follows: in order to solve the problems in the prior art, the invention provides a flexible silent floor with qualified residual concavity and good sound insulation effect and a preparation method thereof.
The technical scheme is as follows: in order to achieve the above purpose, the invention adopts the following technical scheme:
a flexible mute floor is characterized in that a foaming mute layer is arranged between two layers of PVC hard base materials; the foaming mute layer is prepared by foaming a microsphere foaming agent.
Furthermore, the PVC hard substrate comprises the following preparation raw materials in parts by weight: 90-120 parts of PVC resin, 2-6 parts of stabilizer, 200-300 parts of stone powder, 1-3 parts of stearic acid and 1-3 parts of internal lubricant.
Further, the foaming mute layer comprises the following preparation raw materials in parts by weight: 100-120 parts of polyethylene resin, 14g of microsphere foaming agent, 12-16 parts of stearic acid, 1-3 parts of cross-linking agent, 4-7 parts of cross-linking catalyst, 0.1-0.4 part of antioxidant and 0.1-0.4 part of ultraviolet absorbent.
Furthermore, the microsphere foaming agent is prepared by a suspension polymerization method.
Furthermore, the preparation method of the microsphere foaming agent comprises the following steps: by weight, sequentially adding 150-190 parts of deionized water, 20-50 parts of sodium chloride, 80-120 parts of magnesium hydroxide, 1-5 parts of citric acid and 2-4 parts of polyvinyl alcohol into a water phase; the oil phase comprises 30-80 parts of acrylonitrile, 20-60 parts of methyl methacrylate, 1-5 parts of N, N-dimethylacrylamide, 10-50 parts of N-octane, 1-2 parts of polyvinyl alcohol and 1-3 parts of ethylene glycol dimethacrylate; mixing and homogenizing the oil phase and the water phase, and pouring the mixture into a high-pressure reaction kettle for reaction for 25-30 hours at a stirring speed of 2000-4000 rmp, wherein the stirring speed is 300-500 rmp; and cooling, releasing pressure, discharging, washing, filtering and drying in an oven at 60 ℃ to obtain the thermoplastic microspheres, namely the microsphere foaming agent.
Further, the foamed silencing layer is prepared by the following method: 1) weighing the raw materials with corresponding weight, uniformly mixing in a high-speed mixer at room temperature, and mixing by a double-roller mixer: the temperature of the front roller is 110-140 ℃, the temperature of the rear roller is 120-150 ℃, and the mixing time is 3 min; 2) an extrusion process: adding the mixture into an extruder, wherein the temperature of a machine barrel of 3 sections is 110-120 ℃, 90-110 ℃ and 80-90 ℃; 3) crosslinking and foaming: the foaming temperature is 230-260 ℃ in the 1, 4 area, 210-250 ℃ in the 2,5 area, 150-190 ℃ in the 3, 6 area, and the foaming time is 2.5-5 min.
The invention discloses a preparation method of a flexible silent floor, which comprises the following steps:
(1) production of the negative film: weighing the raw materials in corresponding parts by weight, adding PVC resin, a stabilizer, mountain flour, stearic acid and an internal lubricant into a high-speed mixer, setting the temperature to be 100-120 ℃, heating while uniformly mixing and stirring at the rotating speed of 200-320 r/min, starting cold mixing after the temperature is reached, unloading the materials to the cold mixer and stirring for 10-15 min; discharging the cold-mixed material into a material storage tank for later use;
(2) feeding the mixture into an extruder to extrude a PVC hard bottom sheet with a certain thickness; adjusting the temperature of a press to be 130-150 ℃ and the pressure to be 3-5 MPa, and carrying out hot pressing and laminating on the transparent film, the color film and the PVC hard negative film in the press to obtain a hard PVC base material;
(3) adjusting the temperature of the bonding line to 125-140 ℃, and bonding the rigid PVC base material and the foamed mute layer by using PUR glue on the bonding line to obtain a rigid PVC floor semi-finished product;
(4) and (3) carrying out UV (ultraviolet) and tempering treatment on the floor semi-finished product attached by the hot melt adhesive, standing for 72h in a constant temperature room, slotting, and punching to obtain the flexible silent floor.
Furthermore, in the step (2), the temperature of the extruder at 1-5 sections is 220-235 ℃, 210-225 ℃, 190-210 ℃, 185-200 ℃ and 190-195 ℃.
Has the advantages that:
(1) through set up the silence layer between two-layer PVC stereoplasm substrate, not only can reach comfortable feel, still increase the sound that absorbs vibrations and floor production, reach reinforcing syllable-dividing effect.
(2) Through set up the silence layer between two-layer PVC stereoplasm base material, rather than set up the silence layer in floor bottom, the silence layer obtains the support of stereoplasm base material, and the pressure that unit area received reduces, is favorable to remaining depression to improve.
(3) The sound insulation layer is foamed by a microsphere foaming agent, the microsphere foaming agent is of a core-shell structure, the shell is a thermoplastic acrylic polymer, the core is spherical plastic particles consisting of alkane gas, the microsphere has higher resilience and is easy to compress, and after pressure is released, the microsphere returns to the original volume.
Detailed Description
Example 1:
a preparation method of a flexible silent floor comprises the following steps:
(1) production of the negative film: weighing raw materials in corresponding parts by weight, adding 95 parts of PVC resin, 2 parts of stabilizer, 210 parts of stone powder, 1 part of stearic acid and 1 part of internal lubricant into a high-speed mixer, setting the temperature to be 105 ℃, heating while uniformly mixing and stirring at the rotating speed of 205r/min, starting cold mixing after reaching the temperature, and unloading the materials to a cold mixer for stirring for 11 min; discharging the cold-mixed material into a material storage tank for later use;
(2) feeding the mixture into an extruder to extrude a PVC hard bottom sheet with a certain thickness; adjusting the temperature of a press to 130 ℃ and the pressure to 3MPa, and carrying out hot-pressing lamination on the transparent film, the color film and the PVC hard negative film in the press to obtain a hard PVC base material; the temperature of the extruder at 1-5 sections is 220 ℃, 210 ℃, 190 ℃, 185 ℃ and 190 ℃;
(3) production of foamed mute layer: 1) weighing the following raw materials in parts by weight: 100 parts of polyethylene resin, 12 parts of microsphere foaming agent, 1 part of stearic acid, 1 part of cross-linking agent, 4 parts of cross-linking catalyst, 0.1 part of antioxidant and 0.1 part of ultraviolet absorbent, uniformly mixing in a high-speed mixer at room temperature, and mixing in a double-roller mixer: the temperature of the front roller is 110 ℃, the temperature of the rear roller is 120 ℃, and the mixing time is 3 min; 2) an extrusion process: adding the mixture into an extruder, wherein the barrel temperature of 3 sections is 110 ℃, 90 ℃ and 80 ℃; 3) crosslinking and foaming: foaming temperature is 1, 230 ℃ in 4 zones, 210 ℃ in 2,5 zones, 150 ℃ in 3, 6 zones, and foaming time is 2.5 min;
(4) adjusting the temperature of the bonding line to 125 ℃, and bonding the rigid PVC base material and the foamed mute layer by using PUR glue on the bonding line to obtain a rigid PVC floor semi-finished product;
(5) and (3) carrying out UV (ultraviolet) and tempering treatment on the floor semi-finished product attached by the hot melt adhesive, standing for 72h in a constant temperature room, slotting, and punching to obtain the flexible silent floor.
Wherein the microsphere foaming agent in the step (3) is prepared by a suspension polymerization method: by weight, sequentially adding 150 parts of deionized water, 20 parts of sodium chloride, 80 parts of magnesium hydroxide, 1 part of citric acid and 2 parts of polyvinyl alcohol into a water phase; the oil phase comprises 30 parts of acrylonitrile, 20 parts of methyl methacrylate, 1 part of N, N-dimethylacrylamide, 10 parts of N-octane, 1 part of polyvinyl alcohol and 1 part of ethylene glycol dimethacrylate; mixing and homogenizing the oil phase and the water phase, stirring at the speed of 300rmp, and then pouring into a high-pressure reaction kettle for reaction for 25 hours, wherein the stirring speed is 2000 rmp; and cooling, releasing pressure, discharging, washing, filtering and drying in an oven at 60 ℃ to obtain the thermoplastic microspheres, namely the microsphere foaming agent.
Example 2:
a preparation method of a flexible silent floor comprises the following steps:
(1) production of the negative film: weighing the raw materials in corresponding parts by weight, adding 120 parts of PVC resin, 6 parts of stabilizer, 300 parts of stone powder, 3 parts of stearic acid and 3 parts of internal lubricant into a high-speed mixer, setting the temperature to be 120 ℃, heating while uniformly mixing and stirring at the rotating speed of 320r/min, starting cold mixing after the temperature is reached, and unloading the materials to a cold mixer for stirring for 15 min; discharging the cold-mixed material into a material storage tank for later use;
(2) feeding the mixture into an extruder to extrude a PVC hard bottom sheet with a certain thickness; adjusting the temperature of a press to 150 ℃ and the pressure to 5MPa, and carrying out hot-pressing lamination on the transparent film, the color film and the PVC hard negative film in the press to obtain a hard PVC base material; the temperature of the extruder at 1-5 sections is 235 ℃, 225 ℃, 210 ℃, 200 ℃ and 195 ℃;
(3) production of the foamed mute layer: 1) weighing the following raw materials in parts by weight: 120 parts of polyethylene resin, 16 parts of microsphere foaming agent, 3 parts of stearic acid, 3 parts of cross-linking agent, 7 parts of cross-linking catalyst, 0.4 part of antioxidant and 0.4 part of ultraviolet absorbent, uniformly mixing in a high-speed mixer at room temperature, and mixing in a double-roller mixer: the temperature of the front roller is 140 ℃, the temperature of the rear roller is 150 ℃, and the mixing time is 3 min; 2) an extrusion process: adding the mixture into an extruder, wherein the barrel temperature of 3 sections is 120 ℃, 110 ℃ and 90 ℃; 3) crosslinking and foaming: foaming temperature is 1, 4 zones at 260 ℃, 2,5 zones at 250 ℃, 3, 6 zones at 190 ℃, and foaming time is 5 min;
(4) adjusting the temperature of the bonding line to 140 ℃, and bonding the rigid PVC base material and the foamed mute layer by using PUR glue on the bonding line to obtain a rigid PVC floor semi-finished product;
(5) and (3) carrying out UV (ultraviolet) and tempering treatment on the floor semi-finished product attached by the hot melt adhesive, standing for 72h in a constant temperature room, slotting, and punching to obtain the flexible silent floor.
Wherein the microsphere foaming agent in the step (3) is prepared by a suspension polymerization method: according to the weight, 190 parts of deionized water, 50 parts of sodium chloride, 120 parts of magnesium hydroxide, 5 parts of citric acid and 4 parts of polyvinyl alcohol are sequentially added into the water phase; the oil phase comprises 80 parts of acrylonitrile, 60 parts of methyl methacrylate, 5 parts of N, N-dimethylacrylamide, 50 parts of N-octane, 2 parts of polyvinyl alcohol and 3 parts of ethylene glycol dimethacrylate; mixing and homogenizing the oil phase and the water phase, stirring at the speed of 500rmp, and then pouring into a high-pressure reaction kettle for reaction for 30 hours, wherein the stirring speed is 4000 rmp; and cooling, releasing pressure, discharging, washing, filtering and drying in an oven at 60 ℃ to obtain the thermoplastic microspheres, namely the microsphere foaming agent.
Example 3:
a preparation method of a flexible silent floor comprises the following steps:
(1) production of the negative film: weighing the raw materials in corresponding parts by weight, adding 100 parts of PVC resin, 4 parts of stabilizer, 260 parts of stone powder, 2 parts of stearic acid and 2 parts of internal lubricant into a high-speed mixer, setting the temperature to be 110 ℃, heating while uniformly mixing and stirring at the rotating speed of 265r/min, starting cold mixing after the temperature is reached, and unloading the materials to a cold mixer for stirring for 13 min; discharging the cold-mixed material into a material storage tank for later use;
(2) feeding the mixture into an extruder to extrude a PVC hard bottom sheet with a certain thickness; adjusting the temperature of a press to 140 ℃ and the pressure to 4MPa, and carrying out hot-pressing lamination on the transparent film, the color film and the PVC hard negative film in the press to obtain a hard PVC base material; the temperature of 1-5 sections of the extruder is 230 ℃, 220 ℃, 200 ℃, 190 ℃ and 193 ℃;
(3) production of foamed mute layer: 1) weighing the following raw materials in parts by weight: 110 parts of polyethylene resin, 14 parts of microsphere foaming agent, 2 parts of stearic acid, 3 parts of cross-linking agent, 5 parts of cross-linking catalyst, 0.2 part of antioxidant and 0.2 part of ultraviolet absorbent, uniformly mixing in a high-speed mixer at room temperature, and mixing in a double-roller mixer: the front roller temperature is 120 ℃, the rear roller temperature is 1350 ℃, and the mixing time is 3 min; 2) an extrusion process: adding the mixture into an extruder, wherein the temperature of a 3-section cylinder is 115 ℃, 100 ℃ and 85 ℃; 3) crosslinking and foaming: foaming temperature is 1, 4 zones 250 ℃, 2,5 zones 230 ℃, 3, 6 zones 170 ℃, and foaming time is 4 min;
(4) adjusting the temperature of the bonding line to 135 ℃, and bonding the hard PVC base material and the foamed mute layer by using PUR glue on the bonding line to obtain a hard PVC floor semi-finished product;
(5) and (3) carrying out UV (ultraviolet) and tempering treatment on the floor semi-finished product attached by the hot melt adhesive, standing for 72h in a constant temperature room, slotting, and punching to obtain the flexible silent floor.
Wherein the microsphere foaming agent in the step (3) is prepared by a suspension polymerization method: according to the weight, 160 parts of deionized water, 40 parts of sodium chloride, 100 parts of magnesium hydroxide, 3 parts of citric acid and 3 parts of polyvinyl alcohol are sequentially added into the water phase; the oil phase comprises 50 parts of acrylonitrile, 40 parts of methyl methacrylate, 3 parts of N, N-dimethylacrylamide, 20 parts of N-octane, 1.5 parts of polyvinyl alcohol and 2 parts of ethylene glycol dimethacrylate; mixing and homogenizing the oil phase and the water phase, stirring at 380rmp, and then pouring into a high-pressure reaction kettle for reaction for 28 hours, wherein the stirring speed is 3000 rmp; and cooling, releasing pressure, discharging, washing, filtering and drying in an oven at 60 ℃ to obtain the thermoplastic microspheres, namely the microsphere foaming agent.
With the addition of comparative examples 1 and 2,
comparative example 1:
other embodiments are the same as example 3, except that the foamed acoustical layer is disposed on the bottom layer of the flooring, not between two rigid substrates of PVC. The specific difference lies in the step (4): adjusting the temperature of the bonding line to 135 ℃, sequentially bonding the hard PVC base material, the hard PVC base material and the foamed mute layer from top to bottom on the bonding line by using PUR glue to obtain a hard PVC floor semi-finished product;
comparative example 2:
other embodiments are the same as example 3, except that the blowing agent used in the foamed acoustical layer is an azodicarbonamide blowing agent, and not the microsphere blowing agent of example 3.
The performance of the floor finished products prepared in the example 3 and the comparative examples 1-2 is tested, the specific performance indexes are warpage, flatness and sound insulation effect, the warpage is tested by using a feeler gauge and a tensile machine respectively, the sound insulation effect is tested according to ASTM E492, and the sound insulation effect is judged by impacting the sound insulation grade (IIC);
the test results are shown in table 1:
TABLE 1 comprehensive performance test results for example 3 and comparative examples 1-2 floor finish
| Test index | Example 3 | Comparative example 1 | Comparative example 2 |
| Warp (mm) | 0.02 | 0.05 | 0.03 |
| Flatness (mm) | 0.25 | 0.50 | 0.25 |
| IIC (Sound insulation effect) | 56 | 50 | 54 |
| Degree of residual dishing | 0.07 | 0.15 | 0.14 |
As can be seen from the data in table 1, the flexible soundproof floor prepared in example 3 of the present invention has a significant effect of improving the sound insulation effect and the residual sag, and the residual sag value is much more excellent than that of other floors.
Claims (8)
1. A flexible silent floor is characterized in that a foaming silent layer is arranged between two layers of PVC hard base materials; the foaming mute layer is prepared by foaming a microsphere foaming agent.
2. The flexible floor tile of claim 1, wherein: the PVC hard base material comprises the following preparation raw materials in parts by weight: 90-120 parts of PVC resin, 2-6 parts of stabilizer, 200-300 parts of stone powder, 1-3 parts of stearic acid and 1-3 parts of internal lubricant.
3. The flexible floor tile of claim 1, wherein: the foaming mute layer comprises the following preparation raw materials in parts by weight: 100-120 parts of polyethylene resin, 14g of microsphere foaming agent, 12-16 parts of stearic acid, 1-3 parts of cross-linking agent, 4-7 parts of cross-linking catalyst, 0.1-0.4 part of antioxidant and 0.1-0.4 part of ultraviolet absorbent.
4. The flexible floor tile of claim 3, wherein: the microsphere foaming agent is prepared by a suspension polymerization method.
5. The flexible floor silencer of claim 4 wherein; the preparation method of the microsphere foaming agent comprises the following steps: by weight, sequentially adding 150-190 parts of deionized water, 20-50 parts of sodium chloride, 80-120 parts of magnesium hydroxide, 1-5 parts of citric acid and 2-4 parts of polyvinyl alcohol into a water phase; the oil phase comprises 30-80 parts of acrylonitrile, 20-60 parts of methyl methacrylate, 1-5 parts of N, N-dimethylacrylamide, 10-50 parts of N-octane, 1-2 parts of polyvinyl alcohol and 1-3 parts of ethylene glycol dimethacrylate; mixing and homogenizing the oil phase and the water phase, and pouring the mixture into a high-pressure reaction kettle for reaction for 25-30 hours at a stirring speed of 2000-4000 rmp, wherein the stirring speed is 300-500 rmp; and cooling, releasing pressure, discharging, washing, filtering and drying in an oven at 60 ℃ to obtain the thermoplastic microspheres, namely the microsphere foaming agent.
6. The flexible floor silencer of claim 1 or 3, wherein: the preparation method of the foaming mute layer comprises the following steps: 1) weighing the raw materials with corresponding weight, uniformly mixing in a high-speed mixer at room temperature, and mixing by a double-roller mixer: the temperature of the front roller is 110-140 ℃, the temperature of the rear roller is 120-150 ℃, and the mixing time is 3 min; 2) an extrusion process: adding the mixture into an extruder, wherein the temperature of a machine barrel of 3 sections is 110-120 ℃, 90-110 ℃ and 80-90 ℃; 3) crosslinking and foaming: the foaming temperature is 230-260 ℃ in the 1, 4 area, 210-250 ℃ in the 2,5 area, 150-190 ℃ in the 3, 6 area, and the foaming time is 2.5-5 min.
7. A method for preparing the flexible silent floor as claimed in claim 1, which comprises the following steps:
(1) production of the negative film: weighing the raw materials in corresponding parts by weight, adding PVC resin, a stabilizer, mountain flour, stearic acid and an internal lubricant into a high-speed mixer, setting the temperature to be 100-120 ℃, heating while uniformly mixing and stirring at the rotating speed of 200-320 r/min, starting cold mixing after the temperature is reached, discharging the materials to a cold mixer, and stirring for 10-15 min; discharging the cold-mixed material into a material storage tank for later use;
(2) feeding the mixture into an extruder to extrude a PVC hard bottom sheet with a certain thickness; adjusting the temperature of a press to be 130-150 ℃ and the pressure to be 3-5 MPa, and carrying out hot pressing and laminating on the transparent film, the color film and the PVC hard negative film in the press to obtain a hard PVC base material;
(2) adjusting the temperature of the bonding line to 125-140 ℃, and bonding the rigid PVC base material and the foamed mute layer by using PUR glue on the bonding line to obtain a rigid PVC floor semi-finished product;
(3) and (3) carrying out UV (ultraviolet) and tempering treatment on the floor semi-finished product attached by the hot melt adhesive, standing for 72h in a constant temperature room, slotting, and punching to obtain the flexible silent floor.
8. The method for manufacturing a flexible silent floor according to claim 7, wherein: in the step (2), the temperature of the extruder at 1-5 sections is 220-235 ℃, 210-225 ℃, 190-210 ℃, 185-200 ℃ and 190-195 ℃.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117341299A (en) * | 2023-10-12 | 2024-01-05 | 明和科技（唐山）股份有限公司 | High-stability mute glass fiber felt floor and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107501595A (en) * | 2017-08-23 | 2017-12-22 | 成都新柯力化工科技有限公司 | A kind of method of non-melt state expanded polypropylene plastics |
| CN108047480A (en) * | 2017-12-05 | 2018-05-18 | 山东瑞丰高分子材料股份有限公司 | High-temperature expansion polymer microballoon and preparation method thereof |
| CN110433740A (en) * | 2019-06-25 | 2019-11-12 | 浙江工业大学 | A kind of preparation method for the heat-expandable microsphere wrapping up ionic liquid |
| CN110591250A (en) * | 2019-09-12 | 2019-12-20 | 宁波东胜橡胶制品有限公司 | PVC (polyvinyl chloride) foam material for sports shock pad and preparation process thereof |
| CN112976453A (en) * | 2021-02-08 | 2021-06-18 | 帝高力装饰材料（江苏）有限公司 | Preparation method of ultra-silent floor |
| CN113549241A (en) * | 2020-04-23 | 2021-10-26 | 南京工业大学 | Polymer foaming microsphere and preparation method thereof |
-
2022
- 2022-05-20 CN CN202210549249.2A patent/CN114851664A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107501595A (en) * | 2017-08-23 | 2017-12-22 | 成都新柯力化工科技有限公司 | A kind of method of non-melt state expanded polypropylene plastics |
| CN108047480A (en) * | 2017-12-05 | 2018-05-18 | 山东瑞丰高分子材料股份有限公司 | High-temperature expansion polymer microballoon and preparation method thereof |
| CN110433740A (en) * | 2019-06-25 | 2019-11-12 | 浙江工业大学 | A kind of preparation method for the heat-expandable microsphere wrapping up ionic liquid |
| CN110591250A (en) * | 2019-09-12 | 2019-12-20 | 宁波东胜橡胶制品有限公司 | PVC (polyvinyl chloride) foam material for sports shock pad and preparation process thereof |
| CN113549241A (en) * | 2020-04-23 | 2021-10-26 | 南京工业大学 | Polymer foaming microsphere and preparation method thereof |
| CN112976453A (en) * | 2021-02-08 | 2021-06-18 | 帝高力装饰材料（江苏）有限公司 | Preparation method of ultra-silent floor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117341299A (en) * | 2023-10-12 | 2024-01-05 | 明和科技（唐山）股份有限公司 | High-stability mute glass fiber felt floor and preparation method thereof |
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