CN110776838A - Composite adhesive tape and method for manufacturing fluorine rubber and chlorinated butyl rubber by adopting two-cloth three-rubber - Google Patents
Composite adhesive tape and method for manufacturing fluorine rubber and chlorinated butyl rubber by adopting two-cloth three-rubber Download PDFInfo
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- CN110776838A CN110776838A CN201911105354.1A CN201911105354A CN110776838A CN 110776838 A CN110776838 A CN 110776838A CN 201911105354 A CN201911105354 A CN 201911105354A CN 110776838 A CN110776838 A CN 110776838A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/29—Laminated material
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
- C09J2301/16—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the structure of the carrier layer
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2400/00—Presence of inorganic and organic materials
- C09J2400/20—Presence of organic materials
- C09J2400/26—Presence of textile or fabric
- C09J2400/263—Presence of textile or fabric in the substrate
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2423/00—Presence of polyolefin
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a composite adhesive tape for manufacturing fluorine rubber and chlorinated butyl rubber by adopting two-cloth three-rubber, which comprises a fluorine rubber layer (3) positioned in a middle layer, wherein two side surfaces of the fluorine rubber layer (3) are respectively provided with a base cloth (1), and a chlorinated butyl rubber layer (2) is arranged outside the base cloth (1) on each side surface; the preparation method comprises the following steps: mixing fluorine rubber, mixing chlorinated butyl rubber, preparing fluorine rubber cement, preparing chlorinated butyl rubber cement, coating single side of base cloth with glue, jointing fluorine rubber surfaces, coating chlorinated butyl rubber cement on double sides, standing, vulcanizing and the like. The invention not only avoids the problem of poor adhesion of chlorinated butyl rubber and fluorine rubber, but also is beneficial to the formation of gas defense clothing, and the performance completely reaches the battle and technical indexes.
Description
Technical Field
The invention relates to the field of composite adhesive tapes, in particular to a composite adhesive tape and a method for preparing fluorine rubber and butyl chloride rubber by adopting two pieces of cloth and three pieces of rubber.
Background
Heavy chemical protective clothing is protective clothing worn by chemical protective personnel to protect the chemical protective clothing from being damaged by chemical substances and toxic substances when the chemical protective clothing is operated by dangerous chemical substances, chemical toxic substances or corrosive substances, the requirements on air tightness and corrosion resistance are high, the material of the chemical protective clothing is the core material of the chemical protective clothing, and the performance requirements are as follows: (1) the mustard gas prevention is required to be not less than 130 min; (2) 96% of H is protected
2SO
4And 30% NaOH for not less than 120 min; (3) the time for protecting toluene, acetone, acetonitrile and chlorine is not less than 60 min; (4) the time of continuous combustion and smoldering is not more than 15 seconds; (5) thermal aging property: the product is not sticky and crisp after 72 hours at 70 ℃; (6) and cold resistance: crack free after 180 degree folding at-40 ℃ for 5 minutes.
At present, the material structure of heavy protective clothing at home and abroad is shown in figure 1, a fluorine adhesive layer 3 is bonded on a base fabric 1 to form a composite adhesive tape, and then chlorinated butyl adhesive layers 2 are bonded on two sides of the composite adhesive tape. The fluorine rubber is coated with chlorinated butyl rubber because of the adhesion problem of fluorine rubber, especially the low cold-bonding strength (less than 0.3N/mm), and the gas-proof clothes cannot be formed. Although the adhesion of the chlorobutyl adhesive to the base cloth is good, the adhesion of the chlorobutyl adhesive to the fluorine adhesive has problems: that is, the chlorinated butyl rubber is often peeled off from the fluorine rubber surface during the use, and even if the treatment is performed on the fluorine rubber and the chlorinated butyl rubber by using the kelvin 607, the effect is still not ideal.
Disclosure of Invention
In order to effectively solve the problem that chlorinated butyl rubber frequently falls off from a fluorine rubber surface in the using process, the invention designs and manufactures the composite rubberized fabric which adopts two pieces of cloth and three pieces of rubber to manufacture the fluorine rubber and the chlorinated butyl rubber.
The invention is realized by adopting the following technical scheme:
the composite adhesive tape comprises a fluorine adhesive layer positioned in a middle layer, two side faces of the fluorine adhesive layer are respectively provided with a base cloth, and a chlorinated butyl adhesive layer is arranged outside the base cloth on each side face.
The invention not only avoids the problem of poor adhesion of chlorinated butyl rubber and fluorine rubber, but also is beneficial to the formation of gas defense clothing, and the performance completely reaches the battle and technical indexes.
The invention has reasonable design and very high practical application value.
Drawings
Fig. 1 shows a schematic material structure of a conventional heavy protective garment.
Fig. 2 shows a schematic structural diagram of the composite rubberized fabric material of the present invention.
Fig. 3 shows a schematic diagram of a process route for preparing the composite tape.
In the figure: 1-base cloth, 2-chlorinated butyl glue layer and 3-fluorine glue layer.
Detailed Description
The following provides a detailed description of specific embodiments of the present invention.
1. A composite rubberized fabric made of fluorine rubber and chlorinated butyl rubber by adopting two-cloth three-rubber comprises a fluorine rubber layer 3 positioned in a middle layer, two side faces of the fluorine rubber layer 3 are respectively provided with a base cloth 1, and a chlorinated butyl rubber layer 2 is arranged outside the base cloth 1 on each side face.
2. Selecting base cloth: the gram weight of the base cloth used at home and abroad is 100g/m
2On the left and right, the brocade silk is selected in the embodiment, and the gram weight of the gram weight unit area is not more than 50g/m
2Namely, two layers of brocade silk are adopted, and the weight is equivalent to that of the original one layer of base cloth. The strength in the warp direction and the weft direction is equivalent to that of the original base cloth. The tests show that 507 flame-retardant nylon silk, 514 flame-retardant nylon silk, 526 flame-retardant nylon silk and polyester cotton cloth have tensile strength, surface density and breadth at break in warp and weft directions. The physical properties of each substrate cloth are shown in table 1 below:
table 1 comparison of physical properties of the substrate cloths
Through experimental comparison, 514 flame-retardant nylon silk is selected as a framework material of the base cloth. Firstly, the base fabric is subjected to flame retardant treatment, the surface activity is enhanced, the base fabric can be well bonded with rubber, the adhesive force between rubber and the fabric is improved, the rubber content in the formula of the flame retardant rubber material of the adhesive fabric is increased, and the requirement of the physical and mechanical properties of the adhesive fabric specified by the technical conditions of elastic coating is met; secondly, the base fabric is a shuttleless fabric, has few defects, can avoid leakage caused by the capillary effect of the adhesive fabric, reduces air leakage points and improves the surface quality of the adhesive fabric when the adhesive fabric is manufactured, and has the minimum weight per unit area and can also meet the requirement of strength.
3. The route of the rubberized fabric preparation process is shown in fig. 3, and is specifically as follows.
(1) Mixing with fluorine rubber
1.1, a fluorine adhesive production formula (in parts by weight): 260230 parts of fluororubber F, 246230 parts of fluororubber F, 260140 parts of fluororubber F, 5 parts of calcium hydroxide, 7 parts of calcium oxide, 8 parts of magnesium oxide, 2 parts of bisphenol AF and 0.2 part of accelerator BPP; 122.2 parts in total; see table 2.
TABLE 2 fluorine gum production formula
1.2, fluorine glue preparation process (table 3): the adopted equipment is an XK-400mm open mill; adjusting the roller spacing to be 0.5mm, plasticating the rubber F2602 on an open mill for 30 times, wherein the time is 10-15 min; adjusting the roller spacing to be 0.5mm, plasticating the fluororubber F2462 on an open mill for 15 times for 8-10 min; adjusting the roller spacing to be 0.5mm, mixing the fluororubbers F2602, F2462 and F2601, and plastifying for 20 times for 10-15 min; adjusting the roller spacing to be 2mm, adding calcium hydroxide, calcium oxide, magnesium oxide and titanium yellow, and uniformly mixing for 10-15 min; adjusting the roller spacing to be 2mm, adding bisphenol AF and an accelerant BPP, and uniformly mixing for 3-5 min; adjusting the roller spacing to be 2mm, and adopting eight knives and a triangular bag for 5-8 min; adjusting the roller spacing to be 0.5mm, and passing through the roller for 10 times for 5-10 min; adjusting the roller spacing to be 5mm, and discharging the sheet for 3-5 min.
Table 3 fluorine glue preparation process:
(2) mixing of chlorinated butyl rubber
2.1, a chlorinated butyl rubber formula (in parts by weight): 100 parts of chlorinated butyl rubber, 5 parts of zinc oxide, 1.5 parts of industrial stearic acid, 10 parts of phenolic resin, HV-2682 parts, 15 parts of lithopone, 30 parts of antimony trioxide, 30 parts of chlorinated paraffin, 50 parts of zinc borate, 15 parts of titanium yellow and 0.5 part of rubber bright red; 289 parts in total; see table 4.
TABLE 4 chlorinated butyl rubber formulations
2.2, a preparation process of chlorinated butyl rubber (table 5): adjusting the roller spacing to be 0.5mm, plasticating the chlorinated butyl rubber on an open mill for 5-8 min; adjusting the roller spacing to be 2mm, adding chlorinated paraffin, decabromodiphenyl ether, antimony trioxide, zinc borate, titanium yellow and rubber scarlet, and uniformly mixing for 10-15 min; adjusting the roller spacing to be 2mm, adding zinc oxide, technical stearic acid, phenolic resin, HV-268 and lithopone, and uniformly mixing for 10-15 min; adjusting the roller spacing to be 2mm, and adopting eight cutters for 5-8 min; adjusting the roller spacing to be 0.5mm, and passing through the roller for 5 times for 3-5 min; adjusting the roller spacing to be 4mm, and discharging the sheet for 3-5 min.
TABLE 5 preparation of butyl chloride
(3) Preparation of the fluorine adhesive cement (Table 6)
According to the proportion of ethyl acetate =1:2.5, the fluorine rubber compound is thinly passed through an open mill for 20 times, 5% -8% of ethyl acetate is added, the rubber material is pressed into a rubber sheet with the thickness of 2-3 mm, and the rubber sheet is filled into a stirring tank for stirring; stirring for 1h, and adding the rest ethyl acetate into the stirring tank for 4-6 times; then filtering, storing in a special stainless steel or aluminum barrel, and keeping the oil slick added in the slurry barrel at 10mm or above during the storage process.
TABLE 6 preparation of fluorine glue
(4) Preparation of chlorinated butyl rubber cement (Table 7)
According to the technical scheme, the method comprises the following steps of (1) thinly passing a chlorinated butyl rubber compound by an open mill for 20 times according to the proportion of 120# gasoline =1:1.5, adding 7% -12% of gasoline, pressing the rubber material into a rubber sheet with the thickness of 2-3 mm, and filling the rubber sheet into a stirring tank for stirring; after stirring for 1 hour, adding the rest gasoline into the stirring tank for 5-8 times; then filtering, storing in a special stainless steel or aluminum barrel, and keeping the oil slick added in the slurry barrel at 10mm or above during the storage process.
TABLE 7 preparation of butyl chloride cement
(5) Single-side glue base cloth (watch 8)
Before gluing, drying the composite straight-line adhesive tape made of 514 flame-retardant brocade silk on a gluing machine at the temperature of 40-50 ℃, and then coating fluorine adhesive cement on one side of the composite straight-line adhesive tape, wherein the gluing times are more than 5 times.
TABLE 8 Single-side gluing of base cloth
(6) Fluorine rubber surface matching cloth (Table 9)
And (3) combining the cloth within 24 hours after the glue is coated, adopting a cloth combining machine to combine the fluorine glue surfaces of the two composite straight-line adhesive tapes oppositely, wherein the pressure is 0.3-0.4 MPa, the pressing is not less than two times, and standing for not less than 24 hours after the cloth combining is finished.
TABLE 9 fluorine rubber surface joining cloth
(7) Double-sided coating chlorinated butyl rubber mucilage (Table 10)
And (3) coating chlorinated butyl rubber cement on the outer side surface of the base fabric of the finished composite adhesive fabric by using a glue spreader.
TABLE 10 double-sided coating of chlorinated butyl rubber cement
(8) And parking
And after the two sides of the composite adhesive tape are coated with chlorinated butyl rubber adhesive cement, winding the composite adhesive tape, and placing the composite adhesive tape on a cloth rack for parking for at least 96 hours.
(9) Vulcanization (Table 11)
Boosting pressure: 0 to 0.35 to 0.4MPa, and the vulcanization time is 8 to 10 min; normal vulcanization: 0.35-0.4 MPa, and the vulcanization time is 85-90 min; and (3) reducing the pressure: 0.35-0.4 MPa to 0 MPa, and vulcanizing for 4-5 min; the vulcanization temperature was 130 ℃.
TABLE 11 vulcanization
4. After the composite adhesive tape is sent to a related detection mechanism for detection, the detection data are as follows in table 12:
TABLE 12
After detection, various properties of the composite adhesive tape prepared by the invention completely meet the index requirements. The cloth is compounded under the state of raw rubber, after vulcanization, the bonding strength is higher than 2N/mm, and the bonding strength between the cloth and the chlorinated butyl rubber is also higher than 2N/mm because the chlorinated butyl rubber is used for double-layer coating of the surface of the base cloth.
In a word, the embodiment of the invention develops a new method from four aspects of selection of base cloth, determination of a process route for preparing the adhesive tape, change of a fluorine rubber formula, change of a chlorinated butyl rubber formula and the like, and the composite adhesive tape prepared by adopting a two-side three-rubber method skillfully solves the problem that the chlorinated butyl rubber falls off from the fluorine rubber, thereby not only avoiding the problem that the chlorinated butyl rubber and the fluorine rubber are not well adhered, effectively reducing the production cost, but also being beneficial to forming of gas-proof clothes, improving the product quality and completely achieving the fighting technical indexes in performance.
Finally, it should be noted that the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the detailed description is made with reference to the embodiments of the present invention, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which shall all fall within the protection scope of the claims of the present invention.
Claims (3)
1. The utility model provides an adopt two cloth three glues to make compound adhesive tape of fluorine rubber and chlorinated butyl rubber which characterized in that: the cloth comprises a fluorine glue layer (3) located in a middle layer, wherein two side faces of the fluorine glue layer (3) are respectively provided with a base cloth (1), and a chlorinated butyl glue layer (2) is arranged outside the base cloth (1) on each side face.
2. The compound rubberized fabric made of fluorine rubber and chlorinated butyl rubber by using two cloths and three rubbers as claimed in claim 1, wherein: the base cloth (1) is a composite straight-line rubberized fabric, and the framework material of the base cloth is 514 flame-retardant nylon silk.
3. A method for manufacturing a composite rubberized fabric of fluorine rubber and chlorinated butyl rubber by adopting two pieces of cloth and three pieces of rubber is characterized by comprising the following steps of: the method comprises the following steps:
(1) mixing with fluorine rubber
1.1, a fluorine adhesive production formula: 260230 parts of fluororubber F, 246230 parts of fluororubber F, 260140 parts of fluororubber F, 5 parts of calcium hydroxide, 7 parts of calcium oxide, 8 parts of magnesium oxide, 2 parts of bisphenol AF and 0.2 part of accelerator BPP; 122.2 parts in total;
1.2, fluorine glue preparation process: an XK-400mm open mill is adopted; adjusting the roller spacing to be 0.5mm, plasticating the rubber F2602 on an open mill for 30 times, wherein the time is 10-15 min; adjusting the roller spacing to be 0.5mm, plasticating the fluororubber F2462 on an open mill for 15 times for 8-10 min; adjusting the roller spacing to be 0.5mm, mixing the fluororubbers F2602, F2462 and F2601, and plastifying for 20 times for 10-15 min; adjusting the roller spacing to be 2mm, adding calcium hydroxide, calcium oxide, magnesium oxide and titanium yellow, and uniformly mixing for 10-15 min; adjusting the roller spacing to be 2mm, adding bisphenol AF and an accelerant BPP, and uniformly mixing for 3-5 min; adjusting the roller spacing to be 2mm, and adopting eight knives and a triangular bag for 5-8 min; adjusting the roller spacing to be 0.5mm, and passing through the roller for 10 times for 5-10 min; adjusting the roller spacing to be 5mm, and discharging the sheet for 3-5 min;
(2) mixing of chlorinated butyl rubber
2.1, a chlorinated butyl rubber formula: 100 parts of chlorinated butyl rubber, 5 parts of zinc oxide, 1.5 parts of industrial stearic acid, 10 parts of phenolic resin, HV-2682 parts, 15 parts of lithopone, 30 parts of antimony trioxide, 30 parts of chlorinated paraffin, 50 parts of zinc borate, 15 parts of titanium yellow and 0.5 part of rubber bright red; 289 parts in total;
2.2, a preparation process of chlorinated butyl rubber: adjusting the roller spacing to be 0.5mm, plasticating the chlorinated butyl rubber on an open mill for 5-8 min; adjusting the roller spacing to be 2mm, adding chlorinated paraffin, decabromodiphenyl ether, antimony trioxide, zinc borate, titanium yellow and rubber scarlet, and uniformly mixing for 10-15 min; adjusting the roller spacing to be 2mm, adding zinc oxide, technical stearic acid, phenolic resin, HV-268 and lithopone, and uniformly mixing for 10-15 min; adjusting the roller spacing to be 2mm, and adopting eight cutters for 5-8 min; adjusting the roller spacing to be 0.5mm, and passing through the roller for 5 times for 3-5 min; adjusting the roller spacing to be 4mm, and discharging the sheet for 3-5 min;
(3) preparing the fluorine rubber cement
According to the proportion of ethyl acetate =1:2.5, the fluorine rubber compound is thinly passed through an open mill for 20 times, 5% -8% of ethyl acetate is added, the rubber material is pressed into a rubber sheet with the thickness of 2-3 mm, and the rubber sheet is filled into a stirring tank for stirring; stirring for 1h, and adding the rest ethyl acetate into the stirring tank for 4-6 times; then filtering, storing in a special stainless steel or aluminum barrel, and keeping the floating oil added in the slurry barrel to be more than 10mm in the storing process;
(4) preparing the chlorinated butyl rubber cement
According to the technical scheme, the method comprises the following steps of (1) thinly passing a chlorinated butyl rubber compound by an open mill for 20 times according to the proportion of 120# gasoline =1:1.5, adding 7% -12% of gasoline, pressing the rubber material into a rubber sheet with the thickness of 2-3 mm, and filling the rubber sheet into a stirring tank for stirring; after stirring for 1 hour, adding the rest gasoline into the stirring tank for 5-8 times; then filtering, storing in a special stainless steel or aluminum barrel, and keeping the floating oil added in the slurry barrel to be more than 10mm in the storing process;
(5) single-side gluing of base cloth
Before gluing, drying the composite straight-line adhesive tape made of 514 flame-retardant brocade silk on a gluing machine at the temperature of 40-50 ℃, and then coating fluorine adhesive cement on one side of the composite straight-line adhesive tape, wherein the gluing times are more than 5 times;
(6) cloth with mutually-matched fluorine rubber surfaces
The cloth is combined within 24 hours after the glue is coated, the fluorine glue surfaces of the two composite straight-line adhesive tapes are oppositely combined by a cloth combining machine, the pressure is 0.3-0.4 MPa, the pressing is carried out for more than two times, and the cloth is parked for more than 24 hours after the cloth combining is finished;
(7) two sides coated with chlorinated butyl rubber cement
Coating chlorinated butyl rubber cement on the outer side surface of the base fabric of the composite rubberized fabric finished in the step (6) by using a glue spreader;
(8) and parking
After the two sides are coated with chlorinated butyl rubber cement, the composite adhesive tape is wound and placed on a cloth rack for parking for more than 96 hours;
(9) and vulcanizing
Boosting pressure: 0 to 0.35 to 0.4MPa, and the vulcanization time is 8 to 10 min; normal vulcanization: 0.35-0.4 MPa, and the vulcanization time is 85-90 min; and (3) reducing the pressure: 0.35-0.4 MPa to 0 MPa, and vulcanizing for 4-5 min; the vulcanization temperature was 130 ℃.
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| CN114872243A (en) * | 2022-04-28 | 2022-08-09 | 山西新华防化装备研究院有限公司 | Inflatable corner reflector air rib material and preparation method thereof |
| CN114872243B (en) * | 2022-04-28 | 2024-04-23 | 山西新华防化装备研究院有限公司 | Inflatable corner reflector air rib material and preparation method thereof |
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