CN114179455A - Adhesive tape vulcanization molding process and adhesive tape - Google Patents
Adhesive tape vulcanization molding process and adhesive tape Download PDFInfo
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- CN114179455A CN114179455A CN202111508035.2A CN202111508035A CN114179455A CN 114179455 A CN114179455 A CN 114179455A CN 202111508035 A CN202111508035 A CN 202111508035A CN 114179455 A CN114179455 A CN 114179455A
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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
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
- B32B37/1284—Application of adhesive
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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
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
-
- 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
-
- 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
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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
- B32B5/22—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 the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—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 the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
- B32B5/26—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 the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
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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
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
- B64G6/00—Space suits
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
- D06M13/224—Esters of carboxylic acids; Esters of carbonic acid
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/50—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with organometallic compounds; with organic compounds containing boron, silicon, selenium or tellurium atoms
- D06M13/51—Compounds with at least one carbon-metal or carbon-boron, carbon-silicon, carbon-selenium, or carbon-tellurium bond
- D06M13/513—Compounds with at least one carbon-metal or carbon-boron, carbon-silicon, carbon-selenium, or carbon-tellurium bond with at least one carbon-silicon bond
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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
- B32B2038/0052—Other operations not otherwise provided for
- B32B2038/0076—Curing, vulcanising, cross-linking
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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
- B32B2250/00—Layers arrangement
- B32B2250/20—All layers being fibrous or filamentary
-
- 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
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/06—Vegetal fibres
- B32B2262/062—Cellulose fibres, e.g. cotton
-
- 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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- 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
- B32B2437/00—Clothing
Abstract
The scheme discloses a vulcanization molding process of a double-layered adhesive tape and the double-layered adhesive tape, and the process comprises the following steps: degreasing, soaking and ironing the fabric to obtain a fabric layer serving as an adhesive fabric; forming a glue layer between the two fabric layers by gluing to obtain a composite with the fabric layers, the glue layer and the fabric layers; vulcanizing the compound to obtain the rubberized fabric; wherein, the adhesive tape comprises a fabric layer, an adhesive layer and a fabric layer from top to bottom. The process method leads the silica gel adhesive and the fabric to be vulcanized and formed under normal pressure, the silica gel adhesive and the fabric are firmly connected, and the silica gel adhesive is uniformly arranged between the upper layer of cotton cloth and the lower layer of cotton cloth; the sizing vulcanization is adopted, the shrinkage rate of the silica gel adhesive is consistent with that of the cotton cloth, the product is flat in appearance, does not deform, and is good in thickness uniformity. A large number of tests prove that the product yield processed by the method is over 95 percent. The product of the invention can be suitable for the fields with special requirements of higher strength, higher tearing resistance, low-speed or high-speed impact alleviation, low temperature resistance and the like.
Description
Technical Field
The invention relates to the technical field of weaving, in particular to a rubberized fabric vulcanization forming process and a rubberized fabric.
Background
The extravehicular space suit has harsh use conditions and extremely high technical requirements. The space flight vehicle is required to resist the invasion of space radiation, space garbage and the like, and also required to be capable of performing various space scientific research activities in the space environment after astronauts leave the space. The extravehicular space suit glove is one of three main components of a space suit, and provides the operation activity capability and the necessary protective performance of the hands of a spaceman. The gloves are additionally provided with adhesive tape clamping products at the wrists of the astronaut clothing, the adhesive tape clamping products are of a fabric-silicon rubber-fabric three-layer structure, the mechanical collision or the high-speed collision of the space floaters can be weakened layer by layer, the thickness of the products is 0.45-0.65 mm, the flexibility of the wrist action is ensured, the products have higher tensile strength and tearing strength, and the products can resist ultralow temperature of-90 ℃.
Disclosure of Invention
One purpose of the scheme is to provide a vulcanization molding process of the double-coated fabric, the double-coated fabric prepared by the process has reliable quality and mechanical property, uniform thickness and better consistency, and is suitable for preparing clothes worn in a space environment.
A second object of the present solution is to provide a rubberized fabric clip.
In order to achieve the purpose, the scheme is as follows:
a vulcanized molding process of an adhesive tape comprises the following steps:
degreasing, soaking and ironing the fabric to obtain a fabric layer serving as an adhesive fabric;
forming a glue layer between the two layers of fabric by gluing to obtain a composite with a fabric layer, the glue layer and the fabric layer;
vulcanizing the compound to obtain the rubberized fabric;
wherein, the adhesive tape comprises a fabric layer, an adhesive layer and a fabric layer from top to bottom.
Preferably, the degreasing of the fabric comprises the steps of placing the fabric in a container containing an ethyl acetate solution, completely immersing the fabric in the ethyl acetate solution, and taking out and airing the fabric after soaking for 48-60 hours.
Preferably, the soaking comprises the steps of completely immersing the degreased fabric in a solution formed by n-octyl triethoxysilane and ethyl acetate, taking out the fabric after soaking for 4-8 hours, and airing; the mass ratio of n-octyl triethoxysilane to ethyl acetate in the n-octyl triethoxysilane and ethyl acetate solution is 12-20: 100.
Preferably, the gluing comprises applying glue to a layer of fabric laid flat; after the glue is applied, another piece of fabric without glue is taken and compounded on the fabric with the glue applied to form a compound.
Preferably, the vulcanizing of the compound comprises repeatedly pressing the compound on an image-text film covering machine, and shaping and vulcanizing for 20-30 min at 90-100 ℃ after pressing; and continuously vulcanizing for 72-120 h at 65-75 ℃ to obtain the adhesive tape product.
Preferably, the fabric is cotton cloth, and the cotton cloth is industrial cotton cloth suitable for rubber products.
Preferably, the glue is a silica gel adhesive, and the silica gel adhesive is a phenyl silica gel adhesive.
Preferably, the thickness of the rubberized fabric is 0.45-0.65 mm.
In a second aspect, a rubberized fabric is provided, which is prepared by the vulcanization molding process described in any one of the above, and the rubberized fabric is a composite composed of fabric, glue and fabric.
The scheme has the following beneficial effects:
the process method leads the silica gel adhesive and the fabric to be vulcanized and formed under normal pressure, the silica gel adhesive and the fabric are firmly connected, and the silica gel adhesive is uniformly arranged between the upper layer of cotton cloth and the lower layer of cotton cloth; the sizing vulcanization is adopted, the shrinkage rate of the silica gel adhesive is consistent with that of the cotton cloth, the product is flat in appearance, does not deform, and is good in thickness uniformity. A large number of tests prove that the product yield processed by the method is over 95 percent. The product prepared by the process can be suitable for the fields with special requirements of higher strength, higher tear resistance, low-speed or high-speed impact alleviation, low temperature resistance and the like.
Drawings
In order to illustrate the implementation of the solution more clearly, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the solution, and that other drawings may be derived from these drawings by a person skilled in the art without inventive effort.
FIG. 1 is a schematic view of a rubberized fabric clip;
FIG. 2 is a schematic illustration of gluing;
fig. 3 is a schematic view of the pressing.
Detailed Description
Embodiments of the present solution are described in further detail below. It is clear that the described embodiments are only a part of the embodiments of the present solution, and not an exhaustive list of all embodiments. It should be noted that, in the present embodiment, features of the embodiment and the embodiment may be combined with each other without conflict.
The terms first, second and the like in the description and in the claims, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that the embodiments described herein may be practiced otherwise than as specifically illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
In order to improve the mechanical properties of rubber products, rubber and fabrics, such as nylon-silk fabrics, cotton fabrics and the like, are usually vulcanized and compounded together. Although the fabric has certain elasticity, the phenomena of fabric wrinkling, bulging, product distortion and the like are easy to occur when a composite product is vulcanized due to different shrinkage rates of the fabric and the rubber; and the silicon rubber is vulcanized and molded, and is bonded by the adhesive, so that the product operation difficulty is high, the upper layer fabric and the lower layer fabric are not firmly bonded with the rubber, the upper layer fabric and the lower layer fabric are easy to fall off, and the uniformity and consistency of the product thickness cannot be ensured.
The document "development of fabric covered rubber corrugated pipe" (special rubber product, 2007, 28(5)) describes a manufacturing process of a corrugated pipe with two layers of nylon-silk fabric wrapped outside and rubber lined inside, the process comprises vulcanizing rubber into a corrugated pipe shape, uniformly coating XY402 glue solution on the inner and outer layers, compounding the fabric on the corrugated pipe, putting a semi-finished product of a rubber piece and the fabric into a sealed mold, filling high-pressure gas with certain pressure by utilizing the high elasticity of vulcanized rubber, forcing the rubber piece to generate tiny elastic deformation, forcing the stretched surface fabric to extend and attach to the mold, and vulcanizing and shaping by virtue of the adhesive of the fabric and the rubber piece to achieve the purpose of manufacturing a special-shaped rubber fabric covered piece without a mold core. The process adopts secondary vulcanization molding, two sets of molds need to be processed, the operation steps are complex, the laminating process is complex, and the phenomena of local wrinkling, bulging and the like of products are caused due to inconsistent cooling shrinkage of fabrics, glue solution and rubber linings.
The document "die cavity-air pressure forming vulcanization of fabric-coated high-pressure corrugated rubber tube" (rubber and plastic technology and equipment, 2008, 34(6)) introduces a rubber corrugated tube forming process for coating two layers of polyester cord fabrics on the outer layer, the process adopts die cavity-air pressure forming vulcanization to form and vulcanize the rubber corrugated tube coated with the outer layer of fabric, so that the coating layer and the inner glue layer of the fabric obtain excellent bonding quality and appearance quality, the tube blank automatically separates from a die core under the action of gradually increased uniform forming air pressure and is attached to the wall of a corrugated die cavity through gradual deformation, and the die core is convenient to demold after vulcanization forming. The process needs to complete the mutual matching of three elements of time, temperature and pressure in the vulcanization process, the temperature and the pressure have certain requirements in each time period of the vulcanization process, and once the three elements are not matched, a product with good appearance quality cannot be obtained.
Japanese patent application (JP 10138270 (98138270)) describes a method of producing a fabric-rubber laminate having a compound thickness of 100 μm or less by coating a layer of unvulcanized rubber compound on a separator, drying the unvulcanized rubber layer, laminating a reinforcing fabric on the rubber layer, and press-vulcanizing the laminate on a press so that the fabric on the laminate is immersed in the unvulcanized rubber layer and hardened. The process is suitable for manufacturing ultrathin fabric-rubber products with regular shapes and thicknesses, and for thicker products with complex shapes, the fabric is difficult to be uniformly placed in the middle of the rubber material, and the products are not deformed.
The inventor of the application provides a double-layered adhesive tape product, the quality and the mechanical properties reliability of this product, and product thickness has better even uniformity.
In order to prepare the adhesive tape product, the inventor also provides an adhesive tape vulcanization molding process, and the prepared adhesive tape has the characteristics of light weight and thinness and is suitable for preparing clothes worn in a space environment.
Except as indicated, the proportions used in the present scheme are by weight, the materials used are all commercially available.
A vulcanization molding process of a rubberized fabric comprises the following steps:
1. fabric cutting: cutting the fabric into strips with the length of 700-800 mm and the width of 550-600 mm;
2. degreasing the fabric: placing the fabric in a container containing an ethyl acetate solution, completely immersing the fabric in the ethyl acetate solution, and taking out the fabric to be dried after soaking for 48-60 hours;
3. surface treatment: preparing an ethyl acetate solution of n-octyl triethoxysilane with the mass percentage of 12-20%, soaking the degreased fabric in the ethyl acetate solution, completely immersing the fabric in the solution, and taking out the fabric to be dried after 4-8 hours;
4. ironing the fabric: ironing the surface of the fabric subjected to surface treatment by using an ironing machine to avoid wrinkles;
5. gluing: spreading the fabric in the step 4 on a gluing tool, fixing two ends of the fabric by using clamps to ensure that the surface of the cotton cloth is not wrinkled and tight, coating 6-7 silica gel adhesive rubber strips with the length of 500-550 mm on the surface of the cotton cloth by using a glue gun at one end of the fabric, controlling the weight of the rubber material to be about 180-280 g, adjusting the gap between a gluing knife and the cotton cloth to the required thickness, tightly pressing two ends of the gluing knife by using two hands, and scraping the gluing knife from one end of the tool to the other end at a constant speed;
6. compounding: another piece of cotton cloth which is not coated with glue is taken and manually compounded on the cotton cloth coated with glue in the step 5 to form a compound, and the two pieces of compounded cotton cloth are placed on an image-text film laminating machine for repeated lamination for 3-6 times;
7. shaping and vulcanizing: placing the compounded adhesive tape product on a glass plate for fixing, for example, fixing the periphery of a glass plate with the thickness of 800mm multiplied by 600mm multiplied by 5mm by a clamp, and placing the glass plate in a drying oven with the temperature of 90-100 ℃ for heating and shaping, wherein the heating and shaping time is 20-30 min;
8. supplementary vulcanization: taking the rubberized fabric subjected to heat setting in the step 7 down from the glass plate, horizontally placing the rubberized fabric in an oven, and supplementing vulcanization; the temperature of the oven is 65-75 ℃, and the vulcanizing time is 72-120 h; in order to obtain better vulcanization effect, the number of the laminated rubberized fabric clips in the embodiment is not more than 10;
9. taking out the product from the oven, cooling to room temperature, and cutting into required shape.
The product obtained by the process comprises an upper layer of cotton cloth and a lower layer of cotton cloth, wherein the middle layer of the cotton cloth is a glue layer formed by a silica gel adhesive, and the thickness of the product is 0.45-0.65 mm; the cotton cloth is special industrial cotton cloth suitable for rubber products; the silicone adhesive used was a phenyl silicone adhesive.
The thickness of the product obtained by the process is 0.45-0.65 mm, the silica gel adhesive in the product is uniformly arranged between the upper layer of cotton cloth and the lower layer of cotton cloth, the silica gel adhesive does not leak, the cotton cloth does not deform, and the product does not deform.
The present invention is illustrated in detail by the following examples.
Example 1
The rubberized fabric product shown in fig. 1 comprises an upper fabric layer and a lower fabric layer formed by cotton cloth 1, and a glue layer formed by a silica gel adhesive 2; the product has the length of 700mm, the width of 500mm and the thickness of 0.45mm, and the manufacturing process comprises the following steps:
1. fabric cutting: cutting the fabric into strips with the length of 750mm and the width of 550 cm;
2. degreasing the fabric: placing the fabric in a container containing an ethyl acetate solution, completely immersing the fabric in the ethyl acetate solution, and taking out and airing the fabric after soaking for 48 hours;
3. surface treatment: preparing an ethyl acetate solution of n-octyl triethoxysilane with the mass percentage of 12 wt%, soaking the degreased fabric in the ethyl acetate solution, completely immersing the fabric in the solution, and taking out the fabric to be dried after 4 hours;
4. ironing the fabric: ironing the surface of the fabric subjected to surface treatment by using an ironing machine to avoid wrinkles;
5. gluing: as shown in fig. 2, the fabric obtained in the step 4 is flatly laid on a gluing tool, the two ends of the fabric are fixed by clamps to ensure that the surface of the cotton cloth is not wrinkled and tight, 6 silica gel adhesive rubber strips with the length of 500-520 mm are coated on the surface of the cotton cloth by a glue gun at one end of the fabric, the weight of the glue is controlled to be about 220g, the gap between a glue knife and the cotton cloth is adjusted to be 0.45mm, the two ends of the glue knife are pressed by two hands, and the glue knife is scraped towards the other end from one end of the tool at a constant speed;
6. compounding: as shown in fig. 3, another piece of cotton cloth without glue is taken and manually compounded on the cotton cloth coated with glue in the step 5 to form a compound 4, the two pieces of compounded cotton cloth are placed between rubber rollers 3 of an image-text film laminating machine, and the pressing is repeatedly carried out on the image-text film laminating machine for 3 times;
7. shaping and vulcanizing: placing the compounded adhesive tape product on a glass plate with the thickness of 800mm multiplied by 600mm multiplied by 5mm, fixing the periphery by a clamp, and placing the product in a drying oven with the temperature of 90 ℃ for heating and shaping for 30 min;
8. supplementary vulcanization: and (4) taking the rubberized fabric clamped in the step (7) off the glass plate, flatly placing the rubberized fabric in an oven, stacking the rubberized fabric not to exceed 10 sheets, closing the oven door, and supplementing vulcanization. The temperature of the oven is 65 ℃, and the vulcanizing time is 96 h;
9. taking out the product from the oven, cooling to room temperature, and cutting into pieces of 700cm × 500cm for use.
The upper layer and the lower layer of the obtained product are cotton cloth, the middle layer is a glue layer formed by a silica gel adhesive, and the thickness of the product is 0.45 mm-0.65 mm; the obtained product has the advantages of size meeting the design tolerance requirement, flat appearance and good thickness uniformity.
Example 2
The rubberized fabric product shown in fig. 1 comprises an upper fabric layer and a lower fabric layer formed by cotton cloth 1, and a glue layer formed by a silica gel adhesive 2; the product has the length of 750mm, the width of 550mm and the thickness of 0.60mm, and the manufacturing process comprises the following steps:
1. fabric cutting: cutting the fabric into strips with the length of 800mm and the width of 600 cm;
2. degreasing the fabric: placing the fabric in a container containing an ethyl acetate solution, completely immersing the fabric in the ethyl acetate solution, and taking out and airing the fabric after soaking for 50 hours;
3. surface treatment: preparing an ethyl acetate solution of n-octyl triethoxysilane with the mass percentage of 18 wt%, soaking the degreased fabric in the ethyl acetate solution, completely immersing the fabric in the solution, and taking out the fabric to be dried after 4 hours;
4. ironing the fabric: ironing the surface of the fabric subjected to surface treatment by using an ironing machine to avoid wrinkles;
5. gluing: as shown in fig. 2, the fabric obtained in the step 4 is flatly laid on a gluing tool, two ends of the fabric are fixed by clamps to ensure that the surface of the cotton cloth is not wrinkled and tight, 7 silica gel adhesive rubber strips with the length of 550 mm-570 mm are coated on the surface of the cotton cloth by a glue gun at one end of the fabric, the weight of the glue is controlled to be about 280g, the gap between a glue knife and the cotton cloth is adjusted to be 0.60mm, two ends of the glue knife are pressed by two hands, and the glue knife is scraped towards the other end from one end of the tool at a constant speed;
6. compounding: as shown in fig. 3, another piece of cotton cloth without glue is taken and manually compounded on the cotton cloth coated with glue in the step 5 to form a compound 4, the two pieces of compounded cotton cloth are placed between rubber rollers 3 of an image-text film laminating machine, and the pressing is repeatedly carried out on the image-text film laminating machine for 3 times;
7. shaping and vulcanizing: placing the compounded adhesive tape product on a glass plate with the thickness of 800mm multiplied by 600mm multiplied by 5mm, fixing the periphery by a clamp, and placing the product in a drying oven with the temperature of 100 ℃ for heating and shaping for 20 min;
8. supplementary vulcanization: and (4) taking the rubberized fabric clamped in the step (7) off the glass plate, flatly placing the rubberized fabric in an oven, stacking the rubberized fabric not to exceed 10 sheets, closing the oven door, and supplementing vulcanization. The oven temperature is 70 ℃, and the vulcanization time is 72 h;
9. taking out the product from the oven, cooling to room temperature, and cutting into pieces of 750cm × 550cm for use.
The obtained product is of a structure with an upper layer of cotton cloth and a lower layer of cotton cloth and a middle layer of silica gel adhesive, and the thickness of the product is 0.45 mm-0.65 mm. The size of the product meets the requirement of design tolerance, the appearance is smooth, and the thickness uniformity is good.
It should be understood that the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and it will be obvious to those skilled in the art that other variations or modifications may be made on the basis of the above description, and all embodiments may not be exhaustive, and all obvious variations or modifications may be included within the scope of the present invention.
Claims (9)
1. The vulcanization molding process of the double-layered rubberized fabric is characterized by comprising the following steps of:
degreasing, soaking and ironing the fabric to obtain a fabric layer serving as an adhesive fabric;
forming a glue layer between the two layers of fabric by gluing to obtain a composite with a fabric layer, the glue layer and the fabric layer;
vulcanizing the compound to obtain the rubberized fabric;
wherein, the adhesive tape comprises a fabric layer, an adhesive layer and a fabric layer from top to bottom.
2. The rubberized fabric vulcanization molding process of claim 1, wherein the degreasing of the fabric comprises placing the fabric in a container containing an ethyl acetate solution, completely immersing the fabric in the ethyl acetate solution, and taking out and drying the fabric after soaking for 48-60 hours.
3. The rubberized fabric vulcanization molding process of claim 1, wherein the soaking comprises completely immersing the degreased fabric in a solution formed by n-octyltriethoxysilane and ethyl acetate, taking out the fabric after soaking for 4-8 hours, and drying the fabric in the air; the mass ratio of n-octyl triethoxysilane to ethyl acetate in the n-octyl triethoxysilane and ethyl acetate solution is 12-20: 100.
4. The clip fabric vulcanization molding process of claim 1, wherein said coating includes applying a coating of adhesive to a lay-flat layer of fabric; after the glue is applied, another piece of fabric without glue is taken and compounded on the fabric with the glue applied to form a compound.
5. The rubberized fabric vulcanization molding process of claim 1, wherein the vulcanizing the compound includes repeatedly pressing the compound on an image-text film laminating machine, and shaping and vulcanizing at 90-100 ℃ for 20-30 min after pressing; and continuously vulcanizing for 72-120 h at 65-75 ℃ to obtain the adhesive tape product.
6. The clip fabric vulcanization molding process of claim 1, wherein the fabric is cotton cloth, and the cotton cloth is industrial cotton cloth suitable for rubber products.
7. The clip fabric vulcanization molding process of claim 1, wherein the adhesive is a silicone adhesive, and the silicone adhesive is a phenyl silicone adhesive.
8. The clip fabric vulcanization molding process of claim 1, wherein the thickness of the clip fabric is 0.45 to 0.65 mm.
9. A clip, prepared by the vulcanization molding process of any one of claims 1 to 8, wherein the clip is a composite of fabric, glue and fabric.
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| CN202111508035.2A CN114179455A (en) | 2021-12-10 | 2021-12-10 | Adhesive tape vulcanization molding process and adhesive tape |
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| CN202111508035.2A CN114179455A (en) | 2021-12-10 | 2021-12-10 | Adhesive tape vulcanization molding process and adhesive tape |
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| CN114179455A true CN114179455A (en) | 2022-03-15 |
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| CN106956447A (en) * | 2016-01-11 | 2017-07-18 | 湖北航天化学技术研究所 | A kind of slim silicon rubber-fabric joint product and its molding sulfidization molding technique |
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