CN114714678A - High-strength low-heat-absorption low-odor flame-retardant PVC (polyvinyl chloride) mesh fabric and preparation method thereof - Google Patents
High-strength low-heat-absorption low-odor flame-retardant PVC (polyvinyl chloride) mesh fabric and preparation method thereof Download PDFInfo
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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
- B32B5/02—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 structural features of a fibrous or filamentary layer
- B32B5/028—Net structure, e.g. spaced apart filaments bonded at the crossing points
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D7/00—Producing flat articles, e.g. films or sheets
- B29D7/01—Films or sheets
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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
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
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- 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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- 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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
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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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/08—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the cooling method
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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
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/06—Embossing
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions 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; Compositions of derivatives of such polymers
- C08L27/02—Compositions 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; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—Compositions 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; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08L27/06—Homopolymers or copolymers of vinyl chloride
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/02—Composition of the impregnated, bonded or embedded layer
- B32B2260/021—Fibrous or filamentary layer
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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
- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/04—Impregnation, embedding, or binder material
- B32B2260/046—Synthetic resin
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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
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/306—Resistant to heat
- B32B2307/3065—Flame resistant or retardant, fire resistant or retardant
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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
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/582—Tearability
- B32B2307/5825—Tear resistant
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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
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/2224—Magnesium hydroxide
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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
- 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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Abstract
The invention relates to the technical field of mesh clamping cloth, in particular to high-strength low-heat-absorption low-odor flame-retardant PVC mesh clamping cloth and a preparation method thereof, wherein the high-strength low-heat-absorption low-odor flame-retardant PVC mesh clamping cloth comprises mesh clamping cloth, and PVC adhesive films are attached to the top surface and the bottom surface of the mesh clamping cloth at high temperature; according to the invention, through improvement of raw materials, the antioxidant 1076 is adopted, so that the oxygen amount on the surface of the mesh fabric is low, sparks are not easy to generate, the produced product has better flame retardant property, the strength is high, the application range is expanded and the use quality is improved by adopting the light calcium carbonate CACO3, and in addition, the mesh fabric not only can absorb low heat, but also has small smell and further improves the use quality by adopting the low-smell plasticizer DPHP and the low-smell powder Ca/Zn stabilizer.
Description
Technical Field
The invention relates to the technical field of mesh fabric, in particular to high-strength low-heat-absorption low-odor flame-retardant PVC mesh fabric and a preparation method thereof.
Background
The PCV (positive pressure cycling) mesh fabric is different from common fabric, and is a composite fabric which is formed by adhering the front and back surfaces of mesh fabric together through processes of cold sticking, hot sticking or coating and scraping by using glue (membranes), namely the mesh fabric is clamped between an upper layer of glue (membrane) and a lower layer of glue (membrane). The composite fabric is called a sandwich mesh fabric. The PVC net fabric is mainly made of polyvinyl chloride, so that the PVC net fabric is called PVC net fabric, has the characteristics of mature manufacturing process, relatively low price, good insulating property, good chemical stability, acid and alkali resistance and the like, has certain high and low temperature resistance and the like, and has various middle net fabrics, namely polyester and nylon; the yarn can be divided into general yarn and high-strength yarn according to the strength; as for the weaving method of the cloth, there are warp knitting, weft knitting, combing, semi-combing, and carding, etc.
The main problems of the prior PVC clip net cloth in the using process are as follows: (1) the flame retardant property is not possessed, or the flame retardant property is poor; (2) the product is easy to absorb heat and has larger smell, thereby reducing the use quality; (3) the strength is general, and the product is easy to tear, so that the service quality and the service life of the product are reduced.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the high-strength low-heat-absorption low-odor flame-retardant PVC net clamping cloth and the preparation method thereof, through the improvement of the raw materials, the produced product has better flame-retardant property, the strength is higher, the application range is expanded, and the use quality is improved.
The technical scheme of the invention is as follows:
the high-strength low-heat-absorption low-odor flame-retardant PVC clamp mesh cloth comprises a clamp mesh cloth, wherein PVC adhesive films are attached to the top surface and the bottom surface of the clamp mesh cloth at high temperature.
The PVC adhesive film comprises the following raw materials in percentage by mass: the coating comprises, by weight, 75-80.3 parts of suspension-polyvinyl chloride resin powder, DPHP 49-52.4 parts of di (2-propyl heptyl) phthalate, 7.5-8.03 parts of dioctyl adipate DOA, 1.5-1.6 parts of epoxidized soybean oil EPO, 0.22-0.24 part of ultraviolet absorber UV-P, 10760.11-0.118 part of antioxidant, 1.5-1.6 parts of calcium-zinc stabilizer, 3.75-4 parts of antimony trioxide, 9.38-10.04 parts of magnesium hydroxide, 0.423-0.444 part of organic pigment and 318.8-20.12 parts of light calcium carbonate CACO.
The preparation of the PVC adhesive film comprises the following steps:
1. blending materials, namely blending suspension method-polyvinyl chloride resin powder PVC 75-80.3 parts, di (2-propyl heptyl) phthalate DPHP 49-52.4 parts, dioctyl adipate DOA 7.5-8.03 parts, epoxidized soybean oil EPO 1.5-1.6 parts, ultraviolet absorbent UV-P0.22-0.24 part, antioxidant 10760.11-0.118 part, calcium zinc stabilizer 1.5-1.6 parts, antimony trioxide 3.75-4 parts, magnesium hydroxide 9.38-10.04 parts, organic pigment 0.423-0.444 part and light calcium carbonate CACO 318.8-20.12 parts to form a jelly;
2. high-speed mixing, namely putting the jelly into a high-speed blending machine, and stirring for 10-15 minutes at the temperature of 100-140 ℃ to form mixed jelly;
3. screw extrusion, namely putting the mixed jelly into an extruder to be screw extruded to obtain slurry, wherein the extrusion temperature is 120-160 ℃;
4. filtering, namely filtering the extruded slurry on a filter screen to obtain pasty coating slurry;
5. rubber mixing, namely injecting the pasty coating slurry into a high-temperature roll refining furnace for pressure refining, wherein the reaction temperature is 160-180 ℃, the pressure is 60MPa, and the reaction is continued for 3 hours;
6. rolling and forming a film, namely rolling and molding the slurry obtained in the step 5 by a rolling machine to prepare a glue film with the thickness of 5mm-10mm, wherein the screw temperature is 220-240 ℃, the conveying section temperature is 230-250 ℃, the extrusion pressure is 50-60 MPa, the drying temperature is 80-100 ℃, the drying time is 4-6 h, and the production speed is 5-30 m/min;
7. embossing, namely embossing the upper surface and the lower surface of the semi-finished product adhesive film obtained in the step 6 by using an embossing roller of an embossing machine to obtain a printed semi-finished product PVC adhesive film;
8. cooling and shaping, namely fully cooling and shaping the semi-finished PVC adhesive film obtained in step 7 by a cooling roller, wherein an embossing roller is pushed by oil pressure, and the oil pressure is adjusted to be 3-5 Mpa;
9. and (5) cooling and shaping the PVC glue film in the step (8) to form the PVC glue film for later use.
The manufacturing method of the clamp mesh cloth comprises the following steps:
10. arranging the mesh, namely putting the high-strength polyester fiber mesh into a cleaning machine for surface cleaning, and performing electrostatic dust removal treatment;
11. padding, namely placing the mesh cloth obtained in the step 10 in a padding machine, wherein the padding machine comprises the following raw materials in parts by weight: 50-53 parts of emulsion-polyvinyl chloride resin powder suspension, 37.5-39.4 parts of di (2-propyl heptyl) phthalate DPHP, 5-5.3 parts of dioctyl adipate DOA, 4-4.24 parts of antimony trioxide, 5-5.3 parts of magnesium hydroxide, 1-1.06 parts of calcium zinc stabilizer, 1.5-1.59 parts of MDX adhesive (isocyanate) and 4.25-6.63 parts of light calcium carbonate, putting the raw materials into a high-speed blender, stirring for 10-15 minutes at the temperature of 100 ℃ and 140 ℃ to form PVC paste, and attaching the PVC paste to the surface of a sandwich mesh cloth;
12. heating and plasticizing, namely heating and plasticizing the paste screen cloth obtained in the step (11) to form a semi-finished product screen cloth;
13. thermally laminating the bottom layer, namely laminating a PVC adhesive film on the bottom surface of the semi-finished sandwich mesh cloth at a high temperature;
14. thermally laminating the surface layer, namely laminating a PVC adhesive film on the top surface of the semi-finished sandwich mesh cloth at a high temperature;
15. embossing, namely carrying out upper and lower surface embossing treatment on the semi-finished product sandwich screen cloth obtained by the step 14 by using an embossing roller of an embossing machine to obtain printed semi-finished product sandwich screen cloth;
16. cooling and shaping, namely fully cooling and shaping the semi-finished product screen cloth obtained by 15 through a cooling roller, wherein an embossing roller is pushed by oil pressure which is adjusted to be 3-5 Mpa;
17. and (5) finishing, namely inspecting the finished product obtained in step 16 by using the screen cloth, and rolling into a finished product.
The invention has the beneficial effects that: according to the invention, through improvement of raw materials, the antioxidant 1076 is adopted, so that the oxygen amount on the surface of the mesh fabric is low, sparks are not easy to generate, the produced product has better flame retardant property, the strength is high, the application range is expanded and the use quality is improved by adopting the light calcium carbonate CACO3, and in addition, the mesh fabric not only can absorb low heat, but also has small smell and further improves the use quality by adopting the low-smell plasticizer DPHP and the low-smell powder Ca/Zn stabilizer.
Detailed Description
Example 1
The high-strength low-heat-absorption low-odor flame-retardant PVC clamp mesh cloth comprises a clamp mesh cloth, wherein PVC adhesive films are attached to the top surface and the bottom surface of the clamp mesh cloth at high temperature.
The PVC adhesive film comprises the following raw materials in percentage by mass: the coating comprises, by weight, 75 parts of suspension method-polyvinyl chloride resin powder PVC, 49 parts of di (2-propyl heptyl) phthalate DPHP, 7.5 parts of dioctyl adipate DOA, 1.5 parts of epoxidized soybean oil EPO, 0.22 part of ultraviolet absorbent UV-P, 10760.11 parts of antioxidant, 1.5 parts of calcium-zinc stabilizer, 3.75 parts of antimony trioxide, 9.38 parts of magnesium hydroxide, 0.423 part of organic pigment and 318.8 parts of light calcium carbonate CACO.
The preparation of the PVC adhesive film comprises the following steps:
1. blending materials, namely blending materials of 75 parts of suspension-polyvinyl chloride resin powder, DPHP49 parts of di (2-propyl heptyl) phthalate, 7.5 parts of dioctyl adipate DOA, 1.5 parts of epoxidized soybean oil EPO, 0.22 part of ultraviolet absorbent UV-P, 10760.11 parts of antioxidant, 1.5 parts of calcium-zinc stabilizer, 3.75 parts of antimony trioxide, 9.38 parts of magnesium hydroxide, 0.423 part of organic pigment and 318.8 parts of light calcium carbonate CACO to form a jelly;
2. high-speed mixing, namely putting the jelly into a high-speed blender, and stirring for 10 minutes at the temperature of 100 ℃ to form mixed jelly;
3. screw extrusion, namely putting the mixed jelly into an extruder to be screw extruded to obtain slurry, wherein the extrusion temperature is 120 ℃;
4. filtering, namely filtering the extruded slurry on a filter screen to obtain pasty coating slurry;
5. mixing rubber, namely injecting the pasty coating slurry into a high-temperature roll refining furnace for pressure refining, wherein the reaction temperature is 160 ℃, the pressure is 60MPa, and the reaction lasts for 3 hours;
6. rolling and forming a film, namely rolling and molding the slurry obtained in the step 5 by a rolling machine to prepare a glue film with the thickness of 5mm, wherein the screw temperature is 220 ℃, the conveying section temperature is 230 ℃, the extrusion pressure is 50MPa, the drying temperature is 80 ℃, the drying time is 4 hours, and the production speed is 5 m/min;
7. embossing, namely embossing the upper surface and the lower surface of the semi-finished product adhesive film obtained in the step 6 by using an embossing roller of an embossing machine to obtain a printed semi-finished product PVC adhesive film;
8. cooling and shaping, namely fully cooling and shaping the semi-finished PVC adhesive film obtained in step 7 by a cooling roller, wherein an embossing roller is pushed by oil pressure, and the oil pressure is adjusted to be 3-5 Mpa;
9. and (5) cooling and shaping the PVC glue film in the step (8) to form the PVC glue film for later use.
The manufacturing method of the clamp mesh cloth comprises the following steps:
10. arranging the mesh, namely putting the high-strength polyester fiber mesh into a cleaning machine for surface cleaning, and performing electrostatic dust removal treatment;
11. padding, namely placing the mesh cloth obtained in the step 10 into a padding machine, wherein the padding machine comprises the following raw materials in parts by weight: 50 parts of emulsion-polyvinyl chloride resin powder suspension, 37.5 parts of di (2-propyl heptyl) phthalate DPHP, 5 parts of dioctyl adipate DOA, 4 parts of antimony trioxide, 5 parts of magnesium hydroxide, 1 part of calcium zinc stabilizer, 1.5 parts of MDX adhesive (isocyanate) and 36.25 parts of light calcium carbonate CaCO, putting the raw materials into a high-speed blender, stirring for 10 minutes at the temperature of 100 ℃ to form PVC paste, and attaching the PVC paste to the surface of a sandwich mesh cloth;
12. heating and plasticizing, namely heating and plasticizing the paste screen cloth obtained in the step (11) to form a semi-finished product screen cloth;
13. thermally laminating the bottom layer, namely laminating a PVC adhesive film on the bottom surface of the semi-finished sandwich mesh cloth at a high temperature;
14. thermally laminating the surface layer, namely laminating a PVC adhesive film on the top surface of the semi-finished sandwich mesh cloth at a high temperature;
15. embossing, namely carrying out upper and lower surface embossing treatment on the semi-finished product sandwich screen cloth obtained by the step 14 by using an embossing roller of an embossing machine to obtain printed semi-finished product sandwich screen cloth;
16. cooling and shaping, namely fully cooling and shaping the semi-finished product screen cloth obtained by 15 through a cooling roller, wherein an embossing roller is pushed by oil pressure which is adjusted to be 3-5 Mpa;
17. and (5) finishing, namely inspecting the finished product obtained in step 16 by using the screen cloth, and rolling into a finished product.
Example 2
The high-strength low-heat-absorption low-odor flame-retardant PVC clamp mesh cloth comprises a clamp mesh cloth, wherein PVC adhesive films are attached to the top surface and the bottom surface of the clamp mesh cloth at high temperature.
The PVC adhesive film comprises the following raw materials in percentage by mass: 80.3 parts of suspension method-polyvinyl chloride resin powder PVC, 52.4 parts of di (2-propyl heptyl) phthalate DPHP, 8.03 parts of dioctyl adipate DOA, 1.6 parts of epoxidized soybean oil EPO, 0.24 part of ultraviolet absorbent UV-P, 10760.118 parts of antioxidant, 1.6 parts of calcium-zinc stabilizer, 4 parts of antimony trioxide, 10.04 parts of magnesium hydroxide, 0.444 part of organic pigment and 320.12 parts of light calcium carbonate CACO.
The preparation of the PVC adhesive film comprises the following steps:
1. blending materials, namely blending 80.3 parts of PVC (polyvinyl chloride) resin powder by a suspension method, 52.4 parts of DPHP (2-propylheptyl) phthalate, 8.03 parts of DOA (dioctyl adipate), 1.6 parts of EPO (epoxidized soybean oil), 0.24 part of UV (ultraviolet) absorbent, 10760.118 parts of antioxidant, 1.6 parts of calcium-zinc stabilizer, 4 parts of antimony trioxide, 10.04 parts of magnesium hydroxide, 0.444 part of organic pigment and 320.12 parts of CACO (calcium carbonate) to form a jelly;
2. high-speed mixing, namely putting the jelly into a high-speed blender, and stirring for 15 minutes at the temperature of 140 ℃ to form mixed jelly;
3. screw extrusion, namely putting the mixed jelly into an extruder to be screw extruded to obtain slurry, wherein the extrusion temperature is 160 ℃;
4. filtering, namely filtering the extruded slurry on a filter screen to obtain pasty coating slurry;
5. mixing rubber, namely injecting the pasty coating slurry into a high-temperature roll refining furnace for pressure refining, wherein the reaction temperature is 180 ℃, the pressure is 60MPa, and the reaction lasts for 3 hours;
6. rolling and forming a film, namely rolling and molding the slurry obtained in the step 5 by a rolling machine to prepare a glue film with the thickness of 10mm, wherein the screw temperature is 240 ℃, the conveying section temperature is 250 ℃, the extrusion pressure is 60MPa, the drying temperature is 100 ℃, the drying time is 6h, and the production speed is 30 m/min;
7. embossing, namely embossing the upper surface and the lower surface of the semi-finished product adhesive film obtained in the step 6 by using an embossing roller of an embossing machine to obtain a printed semi-finished product PVC adhesive film;
8. cooling and shaping, namely fully cooling and shaping the semi-finished PVC adhesive film obtained in step 7 by a cooling roller, wherein an embossing roller is pushed by oil pressure, and the oil pressure is adjusted to be 5 Mpa;
9. and (5) cooling and shaping the PVC glue film in the step (8) to form the PVC glue film for later use.
The manufacturing method of the clamp mesh cloth comprises the following steps:
10. arranging the mesh, namely putting the high-strength polyester fiber mesh into a cleaning machine for surface cleaning, and performing electrostatic dust removal treatment;
11. padding, namely placing the mesh cloth obtained in the step 10 into a padding machine, wherein the padding machine comprises the following raw materials in parts by weight: 53 parts of emulsion-polyvinyl chloride resin powder suspension, 39.4 parts of di (2-propylheptyl) phthalate DPHP, 5.3 parts of dioctyl adipate DOA, 4.24 parts of antimony trioxide, 5.3 parts of magnesium hydroxide, 1.06 parts of calcium-zinc stabilizer, 1.59 parts of MDX adhesive (isocyanate) and 36.63 parts of light calcium carbonate are put into a high-speed blender and stirred for 15 minutes at the temperature of 140 ℃ to form PVC paste, and the PVC paste is attached to the surface of a sandwich mesh fabric;
12. heating and plasticizing, namely heating and plasticizing the paste screen cloth obtained in the step (11) to form a semi-finished product screen cloth;
13. thermally laminating the bottom layer, namely laminating a PVC adhesive film on the bottom surface of the semi-finished sandwich mesh cloth at a high temperature;
14. thermally laminating the surface layer, namely laminating a PVC adhesive film on the top surface of the semi-finished sandwich mesh cloth at a high temperature;
15. embossing, namely carrying out upper and lower surface embossing treatment on the semi-finished sandwich screen cloth obtained in the step 14 by using an embossing roller of an embossing machine to obtain printed semi-finished sandwich screen cloth;
16. cooling and shaping, namely fully cooling and shaping the semi-finished product screen cloth obtained by 15 through a cooling roller, wherein an embossing roller is pushed by oil pressure which is adjusted to be 5 Mpa;
17. and (5) finishing, namely inspecting the finished product obtained in step 16 by using the screen cloth, and rolling into a finished product.
Example 3
The high-strength low-heat-absorption low-odor flame-retardant PVC clamp mesh cloth comprises a clamp mesh cloth, wherein PVC adhesive films are attached to the top surface and the bottom surface of the clamp mesh cloth at high temperature.
The PVC adhesive film comprises the following raw materials in percentage by mass: the coating comprises, by weight, 78 parts of suspension method-polyvinyl chloride resin powder PVC, 51 parts of di (2-propyl heptyl) phthalate DPHP, 7.8 parts of dioctyl adipate DOA, 1.55 parts of epoxidized soybean oil EPO, 0.23 part of ultraviolet absorbent UV-P, 10760.114 parts of antioxidant, 1.55 parts of calcium-zinc stabilizer, 3.9 parts of antimony trioxide, 10 parts of magnesium hydroxide, 0.43 part of organic pigment and 319 parts of light calcium carbonate CACO.
The preparation of the PVC adhesive film comprises the following steps:
1. blending materials, namely blending materials of 78 parts of suspension-polyvinyl chloride resin powder, 51 parts of DPHP (2-propyl heptyl) phthalate, 7.8 parts of dioctyl adipate DOA, 1.55 parts of epoxy soybean oil EPO (EPO), 0.23 part of ultraviolet absorbent UV-P, 10760.114 parts of antioxidant, 1.55 parts of calcium-zinc stabilizer, 3.9 parts of antimony trioxide, 10 parts of magnesium hydroxide, 0.43 part of organic pigment and 319 parts of light calcium carbonate CACO to form jelly;
2. high-speed mixing, namely putting the jelly into a high-speed blender, and stirring for 12 minutes at the temperature of 120 ℃ to form mixed jelly;
3. screw extrusion, namely putting the mixed jelly into an extruder to be screw extruded to obtain slurry, wherein the extrusion temperature is 140 ℃;
4. filtering, namely filtering the extruded slurry on a filter screen to obtain pasty coating slurry;
5. mixing rubber, namely injecting the pasty coating slurry into a high-temperature roll refining furnace for pressure refining, wherein the reaction temperature is 170 ℃, the pressure is 60MPa, and the reaction lasts for 3 hours;
6. rolling and forming a film, namely rolling and molding the slurry obtained in the step 5 by a rolling machine to prepare a glue film with the thickness of 7mm, wherein the temperature of a screw is 230 ℃, the temperature of a conveying section is 240 ℃, the extrusion pressure is 55MPa, the drying temperature is 90 ℃, the drying time is 5h, and the production speed is 20 m/min;
7. embossing, namely embossing the upper surface and the lower surface of the semi-finished product adhesive film obtained in the step 6 by using an embossing roller of an embossing machine to obtain a printed semi-finished product PVC adhesive film;
8. cooling and shaping, namely fully cooling and shaping the semi-finished PVC adhesive film obtained in step 7 by a cooling roller, wherein an embossing roller is pushed by oil pressure which is adjusted to be 4 Mpa;
9. and (5) cooling and shaping the PVC glue film in the step (8) to form the PVC glue film for later use.
The manufacturing method of the clamp mesh cloth comprises the following steps:
10. arranging the mesh cloth, namely putting the high-strength polyester fiber mesh cloth into a cleaning machine for surface cleaning, and performing electrostatic dust removal treatment;
11. padding, namely placing the mesh cloth obtained in the step 10 into a padding machine, wherein the padding machine comprises the following raw materials in parts by weight: emulsion method-52 parts of polyvinyl chloride resin powder suspension, DPHP38 parts of di (2-propyl heptyl) phthalate, 5.15 parts of dioctyl adipate DOA, 4.15 parts of antimony trioxide, 5.15 parts of magnesium hydroxide, 1.03 parts of calcium-zinc stabilizer, 1.55 parts of MDX adhesive (isocyanate) and 36.4 parts of light calcium carbonate are put into a high-speed blender and stirred for 12 minutes at the temperature of 120 ℃ to form PVC paste, and the PVC paste is attached to the surface of a sandwich mesh fabric;
12. heating and plasticizing, namely heating and plasticizing the paste screen cloth obtained in the step (11) to form a semi-finished product screen cloth;
13. thermally laminating the bottom layer, namely laminating a PVC adhesive film on the bottom surface of the semi-finished sandwich mesh cloth at a high temperature;
14. thermally laminating the surface layer, namely laminating a PVC adhesive film on the top surface of the semi-finished sandwich mesh cloth at a high temperature;
15. embossing, namely carrying out upper and lower surface embossing treatment on the semi-finished product sandwich screen cloth obtained by the step 14 by using an embossing roller of an embossing machine to obtain printed semi-finished product sandwich screen cloth;
16. cooling and shaping, namely fully cooling and shaping the semi-finished product screen cloth obtained in the step 15 by a cooling roller, wherein an embossing roller is pushed by oil pressure which is adjusted to be 4 Mpa;
17. and (5) finishing, namely inspecting the finished product obtained in step 16 by using the screen cloth, and rolling into a finished product.
The technical indexes of the invention are as follows:
1. tensile load: longitudinal more than or equal to 2000N/5cm and transverse more than or equal to 1800N/5cm
2. Peel strength: 73.5N/5cm
3. Temperature: minus 20 ℃ to plus or minus 65 DEG C
4. Wind resistance of the frame: 6-8 grades
5. Heat treatment dimensional change rate: less than or equal to 0.5 percent
6. Low-temperature bendability: no crack at-20 DEG C
7. And (3) permeability resistance: 0.2MPa, 24h water-proof
8. Puncture resistance: is impermeable
The performance indexes of the invention are as follows:
according to the technical indexes and performance indexes of the invention, the invention has better tensile load, tearing load and peeling load performance, so that the sandwich mesh fabric has stronger stress of resisting the wire crack, the quality is improved, meanwhile, the anti-permeability performance is 0.2M Pa, the 24h water seepage is avoided, compared with the sandwich mesh fabric on the market, the sandwich mesh fabric has stronger air tightness, the application range can be expanded, in addition, the heavy metal content of the sandwich mesh fabric is lower, and the damage to the environment and the human body is not easy to cause.
The foregoing embodiments and description have been presented only to illustrate the principles and preferred embodiments of the invention, and various changes and modifications may be made therein without departing from the spirit and scope of the invention as hereinafter claimed.
Claims (4)
1. Fire-retardant PVC of low odor of low heat absorption of high strength presss from both sides screen cloth, its characterized in that: the PVC adhesive film is attached to the top surface and the bottom surface of the clamping mesh cloth at high temperature.
2. The high strength low endothermic low odor flame retardant PVC sandwich mesh fabric of claim 1, wherein: the PVC adhesive film comprises the following raw materials in percentage by mass: the coating comprises, by weight, 75-80.3 parts of suspension-polyvinyl chloride resin powder, DPHP 49-52.4 parts of di (2-propyl heptyl) phthalate, 7.5-8.03 parts of dioctyl adipate DOA, 1.5-1.6 parts of epoxidized soybean oil EPO, 0.22-0.24 part of ultraviolet absorber UV-P, 10760.11-0.118 part of antioxidant, 1.5-1.6 parts of calcium-zinc stabilizer, 3.75-4 parts of antimony trioxide, 9.38-10.04 parts of magnesium hydroxide, 0.423-0.444 part of organic pigment and 318.8-20.12 parts of light calcium carbonate CACO.
3. The high strength, low heat absorption, low odor flame retardant PVC sandwich mesh fabric of claim 1, wherein: the preparation of the PVC adhesive film comprises the following steps:
1. blending materials, namely blending materials of 75-80.3 parts of suspension-polyvinyl chloride resin powder, 49-52.4 parts of DPHP, 7.5-8.03 parts of dioctyl adipate DOA, 1.5-1.6 parts of epoxidized soybean oil EPO, 0.22-0.24 part of ultraviolet absorbent UV-P, 10760.11-0.118 part of antioxidant, 1.5-1.6 parts of calcium-zinc stabilizer, 3.75-4 parts of antimony trioxide, 9.38-10.04 parts of magnesium hydroxide, 0.423-0.444 part of organic pigment and 318.8-20.12 parts of light calcium carbonate CACO to form a jelly;
2. high-speed mixing, namely putting the jelly into a high-speed blender, and stirring for 10-15 minutes at the temperature of 100-140 ℃ to form mixed jelly;
3. screw extrusion, namely putting the mixed jelly into an extruder to be screw extruded to obtain slurry, wherein the extrusion temperature is 120-160 ℃;
4. filtering, namely filtering the extruded slurry on a filter screen to obtain pasty coating slurry;
5. rubber mixing, namely injecting the pasty coating slurry into a high-temperature roll refining furnace for pressure refining, wherein the reaction temperature is 160-180 ℃, the pressure is 60MPa, and the reaction is continued for 3 hours;
6. rolling and forming a film, namely rolling and molding the slurry obtained in the step 5 by a rolling machine to prepare a glue film with the thickness of 5mm-10mm, wherein the temperature of a screw is 220-240 ℃, the temperature of a conveying section is 230-250 ℃, the extrusion pressure is 50-60 MPa, the drying temperature is 80-100 ℃, the drying time is 4-6 h, and the production speed is 5-30 m/min;
7. embossing, namely embossing the upper surface and the lower surface of the semi-finished product adhesive film obtained in the step 6 by using an embossing roller of an embossing machine to obtain a printed semi-finished product PVC adhesive film;
8. cooling and shaping, namely fully cooling and shaping the semi-finished PVC adhesive film obtained in step 7 by a cooling roller, wherein an embossing roller is pushed by oil pressure, and the oil pressure is adjusted to be 3-5 Mpa;
9. and (5) cooling and shaping the PVC glue film in the step (8) to form the PVC glue film for later use.
4. The preparation method of the high-strength low-heat-absorption low-odor flame-retardant PVC sandwich mesh cloth is characterized by comprising the following steps of: the method comprises the following steps:
10. arranging the mesh, namely putting the high-strength polyester fiber mesh into a cleaning machine for surface cleaning, and performing electrostatic dust removal treatment;
11. padding, namely placing the mesh cloth obtained in the step 10 in a padding machine, wherein the padding machine comprises the following raw materials in parts by weight: 50-53 parts of emulsion-polyvinyl chloride resin powder suspension, 37.5-39.4 parts of di (2-propyl heptyl) phthalate DPHP, 5-5.3 parts of dioctyl adipate DOA, 4-4.24 parts of antimony trioxide, 5-5.3 parts of magnesium hydroxide, 1-1.06 parts of calcium-zinc stabilizer, 1.5-1.59 parts of MDX adhesive (isocyanate) and 36.25-6.63 parts of light calcium carbonate, putting the raw materials into a high-speed blender, stirring for 10-15 minutes at the temperature of 100 ℃ and 140 ℃ to form PVC paste, and attaching the PVC paste to the surface of a sandwich mesh cloth;
12. heating and plasticizing, namely heating and plasticizing the paste screen cloth obtained in the step 11 to form a semi-finished screen cloth;
13. thermally laminating the bottom layer, namely laminating a PVC adhesive film on the bottom surface of the semi-finished sandwich mesh cloth at a high temperature;
14. thermally laminating the surface layer, namely laminating a PVC adhesive film on the top surface of the semi-finished sandwich mesh cloth at a high temperature;
15. embossing, namely carrying out upper and lower surface embossing treatment on the semi-finished product sandwich screen cloth obtained by the step 14 by using an embossing roller of an embossing machine to obtain printed semi-finished product sandwich screen cloth;
16. cooling and shaping, namely fully cooling and shaping the semi-finished product screen cloth obtained by 15 through a cooling roller, wherein an embossing roller is pushed by oil pressure which is adjusted to be 3-5 Mpa;
17. and (5) finishing, namely inspecting the finished product obtained in step 16 by using the screen cloth, and rolling into a finished product.
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CN202210326816.8A CN114714678A (en) | 2022-03-30 | 2022-03-30 | High-strength low-heat-absorption low-odor flame-retardant PVC (polyvinyl chloride) mesh fabric and preparation method thereof |
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CN113022052A (en) * | 2020-01-09 | 2021-06-25 | 广州市柏拉图塑胶有限公司 | Anti-fouling self-cleaning PVC net-sandwiched cloth |
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CN113022052A (en) * | 2020-01-09 | 2021-06-25 | 广州市柏拉图塑胶有限公司 | Anti-fouling self-cleaning PVC net-sandwiched cloth |
Non-Patent Citations (1)
Title |
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橡胶工业原材料与装备简明手册编审委员会: "《橡胶工业原材料与装备简明手册 原材料与工艺耗材分册》", 北京理工大学出版社, pages: 1123 * |
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