TWI668106B - Composite sheet and method for manufacturing the same - Google Patents

Abstract

The invention discloses a composite tape and a manufacturing method thereof. The composite tape comprises a base fabric layer, a rubber layer, a decane coupling agent and a silicone layer. The base fabric layer has a first surface and a second surface opposite to each other. The rubber layer is disposed on the base fabric layer. The decane coupling agent is disposed on the second surface. The silicone layer is disposed on the decane coupling agent. The substituted or unsubstituted phenyl group of the decane coupling agent is attached to the second surface of the base fabric layer. Thereby, the composite tape of the present invention can improve heat resistance and anti-aging characteristics while retaining the mechanical properties of the rubber.

Description

Composite tape and manufacturing method thereof

The invention relates to a composite adhesive tape and a manufacturing method thereof, in particular to a composite adhesive tape of rubber and silicone rubber and a manufacturing method thereof.

Nowadays, rubber applications are becoming more and more widespread. For example, the application of related products such as fire resistant protective clothing, life rafts or industrial raincoats has become quite popular. In addition, it is also quite common for industrial products such as train windshields and exhaust passages.

In general, rubber can be divided into synthetic rubber and natural rubber. Natural rubber is a kind of elastic hydrocarbon isoprene; synthetic rubber refers to synthetic high-elastic polymer, mainly butadiene rubber, styrene-butadiene rubber, neoprene rubber, nitrile rubber, isoprene rubber Wait.

However, even though rubber has a wide range of applications, rubber still has a low tolerance to high temperatures in innate structures. Therefore, the improvement of heat resistance and aging resistance of rubber products is an important key to improving rubber materials.

The technical problem to be solved by the present invention is to provide a composite tape which improves the heat resistance of rubber and a method for producing the same, in view of the deficiencies of the prior art.

In order to solve the above technical problem, one of the technical solutions adopted by the present invention is: a composite tape comprising: a base fabric layer, a rubber layer, a decane coupling agent and a silicone layer. The base fabric layer has a first surface and a second surface opposite to each other. A rubber layer is disposed on the base fabric layer. A decane coupling agent is disposed on the second surface. a silicone layer disposed on the decane coupling agent, wherein the decane coupling agent is A substituted or unsubstituted phenyl group is attached to the second surface of the base fabric layer.

Another technical solution adopted by the present invention is to provide a method for manufacturing a composite tape, comprising: providing a base fabric layer having a first surface and a second surface opposite to each other; and a calendering step: applying a rubber compound Calendering on the base fabric layer to form a rubber layer; modifying step: using a decane coupling agent disposed on the second surface of the base fabric layer to replace or unsubstituted the decane coupling agent a phenyl group attached to the second surface of the base fabric layer; and, a bonding step: attaching a silicone rubber compound to the decane coupling agent to form a silicone layer.

One of the beneficial effects of the present invention is that the composite tape provided by the present invention and the method for producing the same can be provided by "a rubber layer disposed on the base fabric layer; a decane coupling agent disposed on the first a second surface; a silicone layer disposed on the decane coupling agent and a technique in which the substituted or unsubstituted phenyl group of the decane coupling agent is attached to the second surface of the base fabric layer The solution is to improve the heat resistance and retain the characteristics of rubber. It can be used on products that need high temperature resistance, and it is not easy to cause damage to the rubber material.

For a better understanding of the features and technical aspects of the present invention, reference should be made to the detailed description and drawings of the invention.

Z, Z’‧‧‧ compound tape

1‧‧‧Kebu layer

11‧‧‧ first surface

12‧‧‧ second surface

2‧‧‧Rubber layer

3‧‧‧decane coupling agent

4‧‧‧ Silicone layer

5‧‧‧Rubber layer

1 is a schematic structural view of a composite tape according to an embodiment of the present invention; FIG. 2 is a schematic structural view of a composite tape according to another embodiment of the present invention; and FIG. 3 is a manufacturing method of the composite tape of the present invention. 4 is a schematic flow chart of a method for manufacturing a composite tape according to another embodiment of the present invention; and FIG. 5 is a schematic flow chart of a method for manufacturing a composite tape according to another embodiment of the present invention.

The following is a description of the disclosure of the present invention by way of specific embodiments. The advantages and effects of the present invention can be understood by those skilled in the art from the disclosure of the present disclosure. The present invention can be implemented or applied by other different embodiments, each of which is described in the specification. The details of the present invention can be variously modified and changed without departing from the spirit and scope of the invention. The drawings of the present invention are only for the purpose of simplicity of illustration, and are not stated in actual dimensions. The embodiments of the present invention will be further described in detail, but the disclosure is not intended to limit the scope of the present invention.

It will be understood that, although the terms first, second, third, etc. may be used herein to describe various elements or signals, etc., these elements or signals are not limited by these terms. These terms are used to distinguish one element from another, or a signal and another. Also, as used herein, the term "or" may include all combinations of any one or more of the associated listed items.

Please refer to FIG. 1 to FIG. 5 . FIG. 1 and FIG. 2 are schematic diagrams showing the structure of the composite tape of the present invention, FIG. 3 is a flow chart of the method for manufacturing the composite tape of the present invention, and FIGS. 4 and 5 are the composite tapes of the present invention. Process steps of the manufacturing method.

Please refer to FIG. 1. FIG. 1 is a schematic structural view of a specific embodiment of a composite tape Z according to the present invention, comprising: a base fabric layer 1, a rubber layer 2, a decane coupling agent 3, and a silicone layer 4. Wherein, the base fabric layer 1 has a first surface 11 and a second surface 12 opposite to each other, and the rubber layer 2 is disposed on the base fabric layer 1, the decane coupling agent 3 is disposed on the second surface 12, and the silicone layer 4 is disposed on the decane coupling agent. 3; wherein the substituted or unsubstituted phenyl group of the decane coupling agent 3 is attached to the second surface 1b of the base fabric layer 1.

As shown in FIG. 2, FIG. 2 is a schematic structural view of a composite adhesive tape Z' according to another embodiment of the present invention. The composite adhesive tape Z' of the present invention further includes: a rubber adhesive layer 5 disposed on the base fabric layer 1 Between the first surface 11 and the rubber layer 2. Specifically, the rubber backing layer 5 is mainly a rubber-based adhesive, and includes a tackifier as needed.

In a specific embodiment of the invention, the base fabric layer 1 may be selected from the group consisting of polyester cloth, nylon cloth, cotton cloth, fiberglass cloth or polyester nylon fiber blended gauze, preferably nylon base cloth or polyester fiber cloth.

In a specific embodiment of the invention, the rubber layer 2 is a synthetic rubber layer or a natural rubber layer. The natural rubber layer includes cis-polyisoprene and trans-polyisoprene; the synthetic rubber layer mainly includes butadiene rubber, styrene-butadiene rubber, neoprene rubber, nitrile rubber, isoprene rubber and the like. Rubber has good mechanical properties and is easy to bond with other metal or non-metal materials, but the heat resistance temperature is only between -40 ° C and 110 ° C.

In a specific embodiment of the invention, the silicone layer 4 is a synthetic silicone layer. The main component of tannin is cerium oxide, which consists of an inorganic oxime bond skeleton (...-Si-O-Si-O-Si-O-...) and a branched organic group in which a covalent bond is bonded to a ruthenium atom. By controlling the length of the skeleton, the kind of the organic group, and the crosslinking of the skeleton, a hydrogen peroxide polymer having different properties can be obtained. Silicone has excellent temperature stability and can be used stably in the temperature range of -40 ° C to 280 ° C, but the mechanical properties are not good, the tear strength is also low, and it is not easy to fit with other materials.

Under the above-mentioned material characteristics, the composite adhesive tape of the present invention provides the rubber and silicone rubber better mechanical properties by the base fabric layer, combines the advantages of rubber and silicone rubber, and compensates for the disadvantage that the silicone rubber material is not easy to be bonded with other materials by the rubber material. However, the silicone rubber material compensates for the shortcomings of the rubber material's poor heat resistance, and can effectively expand the application level of the composite adhesive tape.

In a specific embodiment of the invention, the decane coupling agent 3 is represented by the formula Y-SiX ₃ wherein Y is a non-hydrolyzable group, including an alkenyl group (such as a vinyl group), and a terminal having Cl, NH. ₂ , a hydrocarbon group of a functional group such as SH, epoxy, N ₃ , methacryloxy, isocyanate or the like, that is, a carbon functional group; X is a hydrolyzable group, including Cl, OMe, OEt, OC ₂ H ₄ OCH ₃ , OSiMe ₃ and OAc, etc. For example, the decane coupling agent 3 of the present invention may be selected from the group consisting of vinylbenzylaminoethylaminopropyltrimethoxydecane, vinyltriethoxydecane, vinyltrimethoxydecane, vinyltri(p). -methoxyethoxy)decane, y-methacryloxypropyltrimethoxydecane, p-(3,4-epoxycyclohexyl)ethyltrimethoxydecane, y-glycidoxy Propyltrimethoxydecane, y-glycidoxypropylmethyldiethoxydecane, vinyltriethoxydecane, y-mercaptopropyltrimethoxydecane, (3-aminopropyl)trimethyl Oxydecane, (3-aminopropyl)triethoxydecane, NP-(aminoethyl)-y-aminopropyltrimethoxydecane, N-(P-aminoethyl)-y-aminopropyl Methyldimethoxydecane, aminoethylaminopropyl decanetriol homopolymer, bis(trimethoxycarbamidopropyl)amine, y-aminopropyltriethoxydecane and Np-(aminoethyl) Base)-y-aminopropyltrimethoxydecane, and the like.

In a specific embodiment of the invention, the structure of the decane coupling agent is as shown in formula (I):

In a specific embodiment of the invention, the decane coupling agent 3 is vinylbenzylaminoethylaminopropyltrimethoxydecane, wherein the vinyl benzyl group is attached to the second surface 11 of the base fabric layer 1 and The trimethoxydecyl group at one end is attached to the silicone layer 4; particularly when the base fabric layer 1 is a polyester fiber cloth, the decane coupling agent 3 can bond the benzene ring in the molecule of the polyester fiber cloth with a phenyl group. By the modification effect of the decane coupling agent 3, the state in which the silicone layer is not easily adhered can be improved, and the bonding force between the base fabric layer 1 and the silicone layer 4 can be remarkably improved without additionally using an adhesive.

The present invention further provides a method for manufacturing a composite tape, and FIG. 3 is a schematic flow chart of a method for manufacturing a composite tape according to an embodiment of the present invention, comprising: S100 providing a base fabric layer having first surfaces opposite to each other and a second surface; S102 calendering step: calendering the rubber compound to the base fabric layer; S104 modifying step: disposing the decane coupling agent on the second surface of the base fabric layer to make the substituted or unsubstituted benzene of the decane coupling agent The group is attached to the second surface of the base fabric layer; and S106 is attached to the step: the silicone rubber compound is attached to the decane coupling agent.

Specifically, the base fabric layer provided by S100 may be selected from polyester cloth, nylon cloth, cotton cloth, fiberglass cloth or polyester nylon fiber blended gauze, but is not limited thereto, and may be different depending on the product use and desired characteristics. The choice is preferably a nylon base fabric or a polyester fiber cloth.

In the calendering step of S102, the rubber compound can be firstly kneaded with a suitable organic filler and an inorganic filler by a kneading device (such as a 10,000-mass mixer), and subjected to an environment of 50 ° C to 95 ° C. The roller (including the coarse wheel and the fine wheel) is thoroughly mixed, and the fully mixed rubber compound is fed into the calendering device (such as a calendering laminating machine) as a conveyor belt, and is adhered to the first surface of the base fabric layer, and calendered to the setting. The thickness is from 0.1 cm to 2.0 cm, and the temperature of the calendering equipment is controlled from 60 ° C to 95 ° C.

In the S104 upgrading step, the decane coupling agent is attached to the second surface of the base fabric layer by impregnation or spraying. The substituted or unsubstituted phenyl group of the decane coupling agent is attached to the second surface of the base fabric layer, and the oxoalkyl group at the other end can be further used to attach to the silicone layer. In detail, the decane coupling agent may be diluted to a suitable concentration with acidified water having a pH of 3.5 to 4, wherein the content of the decane coupling agent is 0.1 to 0.5% to obtain a decane coupling agent treatment liquid, and then the decane coupling agent treatment solution is used. The second surface of the base fabric layer 11 is subjected to surface treatment (for example, impregnation or spraying), and the treated base fabric layer 11 is dried at a temperature of 104 ° C to 121 ° C for about 5 to 15 minutes for drying. After drying, roll up into a roll.

Preferably, the structure of the decane coupling agent 3 is as shown in the formula (I):

In the S106 laminating step, the silicone rubber is fed into the calendering device as a conveyor belt (eg Calendering laminator), calendered to a set thickness of 0.1 cm to 2.0 cm. Among them, the ruthenium rubber compound mainly contains ruthenium rubber raw materials and vulcanizing agents, and appropriate additives such as coloring materials, processing aids, ultraviolet absorbing agents, antioxidants, stabilizers or surfactants may be added as needed.

As shown in FIG. 4, in another embodiment of the present invention, the method for manufacturing the composite tape of the present invention further includes: S101 coating a rubber adhesive layer on the first surface of the base fabric layer, and step S101 may be in the step Between S100 and step S102, a first surface of the rubber adhesive layer is applied before the calendering step of S102 to increase the adhesion between the base fabric layer and the rubber layer.

In another embodiment of the present invention, the method of manufacturing the composite tape of the present invention further comprises: a vulcanization step of vulcanizing the rubber layer at a temperature between 130 and 160 ° C, and at a temperature between 150 and 180 ° C. Sulfurized rubber layer. Specifically, as shown in FIG. 5, the vulcanization step S103 may be between steps S102 to S104, vulcanizing the rubber layer at a temperature of 130 to 160 ° C; and, after the bonding step S106, performing the vulcanization step. S107, vulcanizing the silicone layer at a temperature between 150 and 180 °C.

[Advantageous Effects of Embodiments]

One of the beneficial effects of the present invention is that the composite tape provided by the present invention and the method for producing the same can be provided by "a rubber layer disposed on the base fabric layer; a decane coupling agent disposed on the first a second surface; a silicone layer disposed on the decane coupling agent and a technique in which the substituted or unsubstituted phenyl group of the decane coupling agent is attached to the second surface of the base fabric layer The solution can improve the heat resistance of the composite tape and retain the mechanical properties of the rubber. It can be used on products that need high temperature resistance, and it is not easy to cause damage to the composite tape. Furthermore, by attaching the substituted or unsubstituted phenyl group of the decane coupling agent to the base fabric layer, it is possible to improve the defect that the silicone layer is not easily bonded to other materials.

Due to the poor heat resistance of the rubber, and the high temperature resistance of the rubber, it can be used at a temperature of 260 ° C for a long time, and the disadvantage is that the tear strength is low. The invention is provided by a base fabric layer Good mechanical properties, the silicone layer provides high temperature resistance, and forms a heat-resistant rubber and silicone composite tape, which not only improves the heat resistance of rubber-containing materials, but also improves the mechanical properties of the composite tape and expands the application of heat-resistant products. In addition, the rubber phase is more easily bonded to other metal or non-metal materials than the silicone rubber. The composite adhesive tape of the present invention can be used for attaching the rubber layer to other metal or non-metal materials, and the silicone rubber layer is used for withstanding high temperature use, and can be expanded. Application of heat resistant products.

The above disclosure is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Therefore, any equivalent technical changes made by using the present specification and the contents of the drawings are included in the application of the present invention. Within the scope of the patent.

Claims (9)

A composite tape comprising: a base fabric layer having a first surface and a second surface opposite to each other; a rubber layer disposed on the base fabric layer; a decane coupling agent disposed at the substrate a second surface; and a silicone layer disposed on the decane coupling agent; wherein a substituted or unsubstituted phenyl group of the decane coupling agent is attached to the second surface of the base fabric layer Wherein the structure of the decane coupling agent is as shown in formula (I): The composite tape of claim 1, further comprising: a rubber adhesive layer disposed between the first surface of the base fabric layer and the rubber layer. The composite tape of claim 1, wherein the base fabric layer is a nylon base fabric or a polyester fiber cloth. The composite tape according to claim 1, wherein the rubber layer is a synthetic rubber layer or a natural rubber layer. The composite tape of claim 1, wherein the silicone layer is a synthetic silicone layer. A method for manufacturing a composite tape comprising: providing a base fabric layer having a first surface and a second surface opposite to each other; and calendering step: calendering a rubber compound to the base fabric layer to form a a rubber layer; a upgrading step: using a decane coupling agent disposed on the second surface of the base fabric layer to connect the substituted or unsubstituted phenyl group of the decane coupling agent to the base fabric layer The second surface; and a bonding step: attaching a silicone rubber to the decane coupling agent to form a silicone layer; wherein the structure of the decane coupling agent is as shown in the formula (I): The method for producing a composite tape according to claim 6, further comprising: coating a rubber adhesive layer between the first surface of the base fabric layer and the rubber layer. The method of producing a composite tape according to claim 6, wherein the decane coupling agent is attached to the second surface of the base fabric layer by impregnation or spray coating. The method for producing a composite tape according to claim 6, further comprising: a vulcanization step of vulcanizing the rubber layer at a temperature of 130 to 160 ° C and vulcanizing at a temperature of 150 to 180 ° C. Said layer of silicone.