CN110862796A - Hot melt adhesive and FFC insulating film stiffening plate - Google Patents
Hot melt adhesive and FFC insulating film stiffening plate Download PDFInfo
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- CN110862796A CN110862796A CN201911204804.2A CN201911204804A CN110862796A CN 110862796 A CN110862796 A CN 110862796A CN 201911204804 A CN201911204804 A CN 201911204804A CN 110862796 A CN110862796 A CN 110862796A
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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
- C09J167/00—Adhesives based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Adhesives based on derivatives of such polymers
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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
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
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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
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/02—Disposition of insulation
- H01B7/0208—Cables with several layers of insulating material
- H01B7/0225—Three or more layers
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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
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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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
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
Abstract
The utility model provides a hot melt adhesive and FFC insulating film stiffening plate, its hot melt adhesive includes: 20-70% of modified polyester resin A, 5-20% of unsaturated polyester resin B, 1-10% of tackifying resin, less than 1% of curing agent, and the balance of flame retardant and first filler; the modified polyester resin A is a crystalline saturated resin and is prepared by adding raw materials comprising polyester resin C, tackifying resin and nucleating agent into the saturated polyester resin A; the tackifying resin is C5 petroleum resin; the curing agent is isocyanate curing agent; the FFC insulating film reinforcing plate comprises: the printing ink comprises a PET layer, an ink layer, a precoating layer and a hot melt adhesive layer; the hot melt adhesive layer is prepared from a hot melt adhesive. In order to make the saturated polyester resin A have high adhesive force, the saturated polyester resin A is modified into high-adhesive force crystalline high-molecular weight saturated polyester resin which has high cohesive force and high crystallinity and has good adhesive force to base material plastic molded products.
Description
Technical Field
The invention relates to the technical field of hot melt adhesives, in particular to a hot melt adhesive and an FFC insulating film reinforcing plate.
Background
Flexible Flat Cable (FFC) is a novel data cable formed by pressing PET insulating material and extremely thin tinned flat copper wire through a high-tech automation equipment production line, and has the advantages of softness, random bending and folding, thin thickness, small volume, simple connection, convenient disassembly, easy solution to electromagnetic shielding and the like. The existing FFC insulating film reinforcing plate structure is of a three-layer structure comprising a PET film layer, a pre-coating ink layer and a conventional hot melt adhesive layer, and the PET film and a conventional flat FFC flat cable are integrally formed on coating equipment by using a hot melt adhesive.
Most of the hot melt adhesives in the market are polyester resins, the polyester resins generally adopt acid and alcohol condensation polymerization reaction, linear high molecular compounds with ester bonds are generated through the reaction, the polyester resins prepared through the reaction are compounded with a PET film layer and a precoating ink layer to form an FFC insulating film reinforcing plate, and then the FFC insulating film reinforcing plate and the conventional hot melt adhesives for flat FFC cables are integrally formed on coating equipment. However, the polyester resin prepared by the reaction generally has poor processability, can only be compounded with the PET film layer and the pre-coating ink layer by coating, cannot be compounded with the PET film layer and the pre-coating ink layer into the FFC insulating film reinforcing plate by melting, and because the resin used by the FFC insulating film reinforcing plate is unsaturated polyester resin, the FFC insulating film reinforcing plate compounded by coating is relatively unsatisfactory in terms of adhesive force and infiltration, and the FFC insulating film reinforcing plate is characterized in that after the polyester resin is compounded with the PET film layer and the pre-coating ink layer, the adhesive force is small, and the FFC insulating film reinforcing plate is easy to fall off and cannot meet the requirement of high adhesive force of the.
Disclosure of Invention
The invention aims to provide a hot melt adhesive which uses a modified polyester resin A, wherein the modified polyester resin A is prepared by adding raw materials comprising a polyester resin C, a tackifying resin and a nucleating agent into a saturated polyester resin A.
The invention also provides an FFC insulating film reinforcing plate, which utilizes hot melt adhesive to prepare a hot melt adhesive layer.
In order to achieve the purpose, the invention adopts the following technical scheme:
the hot melt adhesive comprises the following raw materials in parts by mass: 20-70% of modified polyester resin A, 5-20% of unsaturated polyester resin B, 1-10% of tackifying resin, less than 1% of curing agent, and the balance of flame retardant and first filler;
the modified polyester resin A is a crystalline saturated resin and is prepared by adding raw materials comprising a polyester resin C, a tackifying resin and a nucleating agent into the saturated polyester resin A;
the tackifying resin is C5 petroleum resin;
the curing agent is isocyanate curing agent.
Further, the molecular weight of the saturated polyester resin A is 10000-60000; the molecular mass of the unsaturated polyester resin B is 10000-30000; the molecular mass of the polyester resin C is 70000-90000;
the molecular mass of the tackifying resin is 300-3000.
The preparation method of the modified polyester resin A is that the saturated polyester resin A, the polyester resin C, the tackifying resin and the nucleating agent are put into a reactor according to the feeding ratio, heated to 160 ℃ for mixing reaction, and when the relative molecular mass of the reaction is not changed any more, the reaction is finished to prepare the crystalline saturated resin A.
Further, the modified polyester resin A comprises the following raw materials in percentage by weight: 40-80% of saturated polyester resin A, 10-40% of polyester resin C, 1-10% of tackifying resin, 1-10% of nucleating agent and the balance of second filler.
The modified polyester resin A is prepared by adding the saturated polyester resin A, the polyester resin C, the tackifying resin, the nucleating agent and a second filler into a reactor according to a feeding ratio, heating to 160 ℃, mixing and reacting, and finishing the reaction when the relative molecular mass of the reaction is not changed any more, thereby preparing the crystalline saturated resin A.
More specifically, the flame retardant is any one or a combination of more than two of trioxane, aluminum hydroxide and decabromodiphenylethane.
In a further aspect, the nucleating agent is a polyvinylcyclosilane, talc, or a sorbitol nucleating agent.
Still further, the first filler and/or the second filler is/are one or a combination of two or more of calcium carbonate, talc, aluminum hydroxide and magnesium hydroxide, respectively.
An FFC insulating film stiffening plate comprises the following components in sequence from bottom to top: the printing ink comprises a PET layer, an ink layer, a precoating layer and a hot melt adhesive layer;
the hot melt adhesive layer is prepared from the hot melt adhesive of any one of claims 1 to 8.
The invention has the beneficial effects that:
in order to make the saturated polyester resin A have high adhesive force, the saturated polyester resin A is modified into high-adhesive force crystalline high-molecular weight saturated polyester resin which has high cohesive force and high crystallinity and has good adhesive force on films, aluminum plates, iron plates and plastic molded products of PET, PVC and polycarbonate.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments.
The hot melt adhesive comprises the following raw materials in parts by mass: 20-70% of modified polyester resin A, 5-20% of unsaturated polyester resin B, 1-10% of tackifying resin, less than 1% of curing agent, and the balance of flame retardant and first filler;
the modified polyester resin A is a crystalline saturated resin and is prepared by adding raw materials comprising a polyester resin C, a tackifying resin and a nucleating agent into the saturated polyester resin A;
the tackifying resin is C5 petroleum resin;
the curing agent is isocyanate curing agent.
More specifically, the saturated polyester resin A is modified into a high-cohesive-force crystalline high-molecular-weight saturated polyester resin which has high cohesive force and high crystallinity and has good adhesion to films, aluminum plates and iron plates, and plastic molded products of PET, PVC and polycarbonate.
The tackifying resin used is C5 petroleum resin which is a thermoplastic resin produced by petroleum cracking byproducts through processes of pretreatment, polymerization, distillation and the like, and the tackifying resin is suitable for high-temperature or low-temperature environments because the tackifying resin has high peel adhesion strength, good quick adhesion, stable adhesion performance, moderate melt viscosity, good heat resistance and good compatibility with a high polymer matrix, and after the tackifying resin is mixed and reacted with the saturated polyester resin A and the polyester resin C, the adhesion of the polyester resin A is effectively improved, and the heat resistance and the low temperature resistance are effectively improved.
The nucleating agent can shorten the molding period, improve the transparency, surface gloss, tensile strength, rigidity, heat distortion temperature, impact resistance, creep resistance and other physical and mechanical properties of the product by changing the crystallization behavior of the resin, accelerating the crystallization rate, increasing the crystallization density and promoting the grain size to be micronized, mainly changes the crystallization behavior of the resin in the mixing reaction process, and improves the crystallization rate of the resin, thereby preparing the crystalline saturated polyester resin.
Further, the molecular weight of the saturated polyester resin A is 10000-60000; the molecular mass of the unsaturated polyester resin B is 10000-30000; the molecular mass of the polyester resin C is 70000-90000;
the molecular mass of the tackifying resin is 300-3000.
Furthermore, the polyester resin C has high molecular weight and high softening point and melting point, and is mixed with the saturated polyester resin A to react, so that the molecular weight, the softening point and the melting point of the saturated polyester resin A are improved, the processability of the saturated polyester resin A is further improved, the conditions required by hot working are met, and the reinforcing plate prepared from the polyester resin A has high adhesive force after being attached to the insulating film at high temperature.
The preparation method of the modified polyester resin A is that the saturated polyester resin A, the polyester resin C, the tackifying resin and the nucleating agent are put into a reactor according to the feeding ratio, heated to 160 ℃ for mixing reaction, and when the relative molecular mass of the reaction is not changed any more, the reaction is finished to prepare the crystalline saturated resin A.
Further, the modified polyester resin A comprises the following raw materials in percentage by weight: 40-80% of saturated polyester resin A, 10-40% of polyester resin C, 1-10% of tackifying resin, 1-10% of nucleating agent and the balance of second filler.
The modified polyester resin A is prepared by adding the saturated polyester resin A, the polyester resin C, the tackifying resin, the nucleating agent and a second filler into a reactor according to a feeding ratio, heating to 160 ℃, mixing and reacting, and finishing the reaction when the relative molecular mass of the reaction is not changed any more, thereby preparing the crystalline saturated resin A.
More specifically, the flame retardant is any one or a combination of more than two of trioxane, aluminum hydroxide and decabromodiphenylethane.
In a further aspect, the nucleating agent is a polyvinylcyclosilane, talc, or a sorbitol nucleating agent.
Still further, the first filler and/or the second filler is/are one or a combination of two or more of calcium carbonate, talc, aluminum hydroxide and magnesium hydroxide, respectively.
An FFC insulating film stiffening plate comprises the following components in sequence from bottom to top: the printing ink comprises a PET layer, an ink layer, a precoating layer and a hot melt adhesive layer;
the hot melt adhesive layer is prepared from the hot melt adhesive.
The performance test that this scheme required use:
bonding metal force, combining the FFC insulating film reinforcing plate with the metal conductor, pulling the metal wire and the film apart by using a pulling machine, and testing the pulling force in the process;
instant stripping force, the FFC insulation film reinforcing plate is rolled by a rolling tester at 180 ℃, the speed is 1.0m/min, and the pressure is 0.4-0.5 mpas. The press-fitted panels were left for 24 hours and then cut to a width of 1 inch to test the peel strength. Peeling test speed: the adhesive force is qualified when the adhesive force is more than 35N/in after 100 mm/min.
The FFC insulating film reinforcing plate is resistant to stripping force, and is rolled by a rolling tester at the temperature of 180 ℃, the speed of 1.0m/min and the pressure of 0.4-0.5 mpas. The press-fitted sample was left to stand for 24 hours, then left to stand at 60 ℃ for 24 hours, and cut into a width of 1 inch to measure the peel strength. Peeling test speed: the adhesive force is qualified when the adhesive force is more than 35N/in after 100 mm/min.
Low-temperature stripping force, rolling the FFC insulating film reinforcing plate by using a rolling tester at 180 ℃, at the speed of 1.0m/min and under the pressure of 0.4-0.5 mpas. The press-fitted sample was left to stand for 24 hours, and then was cut into a width of 1 inch to measure the peel strength of the sample after being left to stand at-5 ℃ for 24 hours. Peeling test speed: the adhesive force is qualified when the adhesive force is more than 35N/in after 100 mm/min.
Example A:
and (3) adding the saturated polyester resin A, the polyester resin C, the tackifying resin, the nucleating agent and the second filler into a reactor according to a feeding ratio, heating to 160 ℃, mixing and reacting, and finishing the reaction when the relative molecular mass of the reaction is not changed any more to obtain the crystalline saturated resin A. The raw materials of the modified polyester resin a are shown in table 1.
Mixing the modified polyester resin A accounting for 40 percent, the unsaturated polyester resin B accounting for 20 percent, the tackifying resin accounting for 10 percent, the curing agent accounting for 1 percent, the fire retardant and the first filler (mixing the modified polyester resin A and the curing agent in a ratio of 3: 1), stirring and dispersing to obtain the hot melt adhesive. The nucleating agent is polyvinyl cyclosilane; the tackifying resin is C5 petroleum resin; the curing agent is MDI curing agent; the flame retardant is a combination of trioxymethylene and aluminum hydroxide; the first filler and the second filler are talcum powder;
coating a layer of printing ink on a PET substrate to prepare an ink layer, coating a pre-coating layer, and coating the prepared hot melt adhesive on the pre-coating layer to prepare a reinforcing plate; and bonding the metal conductor on one surface of the hot melt adhesive of the reinforcing plate, and pressing to obtain the wire.
TABLE 1 compounding ratios for examples A1-A4
The results of the metal adhesion force, the immediate peeling force, the temperature resistant peeling force, and the low temperature peeling force of example a described above are shown in table 2.
TABLE 2 Properties of the examples
Description of the drawings:
1. as can be seen from the comparison between the example A1 and the example A2, the example A2 lacks the polyester resin C, and the polyester resin C improves the hot workability of the polyester resin A in the process of modifying the polyester resin A, and endows the polyester resin with strong cohesive force and adhesive force, and has high adhesive force after being prepared into a wire; while the above table shows that the performance tests of both also demonstrate this effect, the instant peel force of example A2, which lacks polyester resin C, drops from 70N/in to 36N/in of example A1, demonstrating the effect of improving adhesion when saturated polyester resin A is modified with polyester resin C.
2. As can be seen from the comparison between the example A1 and the example A3, the C5 petroleum resin is absent in the example A3, the quick adhesion and the bonding stability of the C5 petroleum resin are improved when the C5 petroleum resin is chemically modified, and the metal adhesion force and the stripping force at normal temperature are reduced after the component is absent in the example A3, and the metal adhesion force is reduced from 152g/0.65mm to 80g/0.65 mm; the temperature-resistant peeling force and the instant peeling force (normal temperature) or the low-temperature peeling force and the instant peeling force (normal temperature) of other examples are not greatly related, while the instant peeling force of example A3 is 50N/in, and after the environment is 60 ℃ and 24 hours, the peeling force is reduced to 26N/in, and the performance is reduced by half; meanwhile, after the environment is-5 ℃ and 24 hours, the stripping force is reduced to 10N/in, and the performance is reduced by 75%; in the embodiment A1, under the action of the C5 petroleum resin, the peeling force after temperature resistance is not reduced, but improved by 4N/in; meanwhile, after 24 hours of resistance at the temperature of minus 5 ℃, the qualified peeling force level can still be maintained. It was confirmed that the addition of the C5 petroleum resin-modified polyester resin A provides heat resistance and low temperature resistance, making the product suitable for high and low temperature environments.
3. Comparing example A1 with example A4, it can be seen that example A4 lacks a nucleating agent, and the nucleating agent is used for changing the crystallization behavior of the saturated polyester resin A and increasing the crystallization rate of the resin, so as to prepare a crystalline saturated polyester resin; on the other hand, the example A4 has no nucleating agent added, so that the crystallization efficiency of the final product is reduced, the crystallization is not complete after 24 hours, and all properties are insufficient, so that the instant peeling force is the lowest and is only 24N/in.
In summary, in the modified polyester resin a, the saturated polyester resin a needs to be prepared by matching the polyester resin C, the tackifying resin, the nucleating agent and the second filler, the components are matched with each other, the polyester resin C provides a binding force effect, the C5 petroleum resin provides a binding stability effect, and the nucleating agent provides a crystallization behavior change, so that the hot melt adhesive layer of the invention has the optimal effects of high binding force, heat resistance and low temperature resistance.
Example B:
example B1:
saturated polyester resin A, polyester resin C, tackifying resin, nucleating agent and second filler are put into a reactor according to the feeding ratio, heated to 160 ℃ for mixing reaction, and when the relative molecular mass of the reaction is not changed any more, the reaction is finished to prepare crystalline saturated resin A, and the raw material of the crystalline saturated resin A is added as example A1 in Table 1.
Mixing the modified polyester resin A accounting for 40 percent, the unsaturated polyester resin B accounting for 20 percent, the tackifying resin accounting for 10 percent, the curing agent accounting for 1 percent, the fire retardant and the first filler (mixing the modified polyester resin A and the curing agent in a ratio of 3: 1), stirring and dispersing to obtain the hot melt adhesive. The nucleating agent is polyvinyl cyclosilane; the tackifying resin is C5 petroleum resin; the curing agent is MDI curing agent; the flame retardant is a combination of trioxymethylene and aluminum hydroxide; the first filler and the second filler are talcum powder;
coating a layer of printing ink on a PET substrate to prepare an ink layer, coating a pre-coating layer, and coating the prepared hot melt adhesive on the pre-coating layer to prepare a reinforcing plate; and bonding the metal conductor on one surface of the hot melt adhesive of the reinforcing plate, and pressing to obtain the wire.
Example B2:
40% of unmodified polyester resin A, 20% of unsaturated polyester resin B, 10% of tackifying resin, 1% of curing agent, the balance of flame retardant and first filler are mixed (the two are mixed according to a ratio of 3: 1), and the mixture is stirred and dispersed to prepare the hot melt adhesive. The nucleating agent is polyvinyl cyclosilane; the tackifying resin is C5 petroleum resin; the curing agent is MDI curing agent; the flame retardant is a combination of trioxymethylene and aluminum hydroxide; the first filler and the second filler are talcum powder;
coating a layer of printing ink on a PET substrate to prepare an ink layer, coating a pre-coating layer, and coating the prepared hot melt adhesive on the pre-coating layer to prepare a reinforcing plate; and bonding the metal conductor on one surface of the hot melt adhesive of the reinforcing plate, and pressing to obtain the wire.
The above examples B1 and B2 were tested for performance as shown in table 3.
TABLE 3 Effect of modified polyester resin A on Properties
| Example B1 | Example B2 | |
| Metal adhesion force (g/0.65mm) | 152 | 43 |
| Immediate release force (N/in) | 70 | 42 |
| Temperature resistant peel force (N/in) | 74 | 35 |
| Low temperature Peel force (N/in) | 36 | 12 |
Description of the drawings:
in the embodiment B, by comparing the polyester resin A before and after modification, the metal adhesion force before modification is 43g/0.65mm, and the metal adhesion force after modification is 152g/0.65mm, which is improved by 2-3 times; the instant stripping force is 42N/in before modification, and is increased to 70N/in after modification, which is increased by 1-2 times; the temperature resistant stripping force is increased from 35N/in to 74N/in, which is increased by 2 times; the low-temperature stripping force is 12N/in before modification and 36N/in after modification, and is increased by 3 times; the data show that the modified polyester resin A can greatly improve the binding power, and particularly has obvious improvement on high temperature resistance and low temperature resistance.
The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive effort, which would fall within the scope of the present invention.
Claims (9)
1. The hot melt adhesive is characterized by comprising the following raw materials in parts by mass: 20-70% of modified polyester resin A, 5-20% of unsaturated polyester resin B, 1-10% of tackifying resin, less than 1% of curing agent, and the balance of flame retardant and first filler;
the modified polyester resin A is a crystalline saturated resin and is prepared by adding raw materials comprising a polyester resin C, a tackifying resin and a nucleating agent into the saturated polyester resin A;
the tackifying resin is C5 petroleum resin;
the curing agent is isocyanate curing agent.
2. The hot melt adhesive as claimed in claim 1, wherein the saturated polyester resin A has a molecular weight of 10000-60000; the molecular mass of the unsaturated polyester resin B is 10000-30000; the molecular mass of the polyester resin C is 70000-90000;
the molecular mass of the tackifying resin is 300-3000.
3. The hot melt adhesive according to claim 2, wherein the modified polyester resin A is prepared by charging the saturated polyester resin A, the polyester resin C, the tackifying resin and the nucleating agent into a reactor at a charging ratio, heating to 160 ℃, mixing and reacting, and ending the reaction when the relative molecular mass of the reaction does not change any more, thereby obtaining the crystalline saturated resin A.
4. The hot melt adhesive according to claim 1, wherein the raw materials of the modified polyester resin A comprise, by weight: 40-80% of saturated polyester resin A, 10-40% of polyester resin C, 1-10% of tackifying resin, 1-10% of nucleating agent and the balance of second filler.
5. The hot melt adhesive according to claim 4, wherein the modified polyester resin A is prepared by charging the saturated polyester resin A, the polyester resin C, the tackifying resin, the nucleating agent and a second filler into a reactor at a charging ratio, heating to 160 ℃, mixing and reacting, and ending the reaction when the relative molecular mass of the reaction does not change any more, thereby obtaining the crystalline saturated resin A.
6. The hot melt adhesive according to claim 1, wherein the flame retardant is any one or a combination of two or more of aluminum oxide, aluminum hydroxide and decabromodiphenylethane.
7. The hot melt adhesive of claim 1, wherein the nucleating agent is polyvinylcyclosilane, talc or sorbitol nucleating agent.
8. The hot melt adhesive of claim 4, wherein the first filler and/or the second filler is one or a combination of more than two of calcium carbonate, talcum powder, aluminum hydroxide and magnesium hydroxide.
9. The utility model provides a FFC insulating film stiffening plate which characterized in that from the supreme down includes in proper order: the printing ink comprises a PET layer, an ink layer, a precoating layer and a hot melt adhesive layer;
the hot melt adhesive layer is prepared from the hot melt adhesive of any one of claims 1 to 8.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112195007A (en) * | 2020-10-12 | 2021-01-08 | 中瀚新材料科技有限公司 | Hot melt adhesive with low dielectric constant for high-frequency transmission, adhesive film thereof and preparation method |
| CN114231235A (en) * | 2021-12-29 | 2022-03-25 | 苏州赛伍应用技术股份有限公司 | Adhesive, reinforcing plate for flexible flat cable and preparation method of reinforcing plate |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112195007A (en) * | 2020-10-12 | 2021-01-08 | 中瀚新材料科技有限公司 | Hot melt adhesive with low dielectric constant for high-frequency transmission, adhesive film thereof and preparation method |
| CN114231235A (en) * | 2021-12-29 | 2022-03-25 | 苏州赛伍应用技术股份有限公司 | Adhesive, reinforcing plate for flexible flat cable and preparation method of reinforcing plate |
| CN114231235B (en) * | 2021-12-29 | 2023-12-19 | 苏州赛伍应用技术股份有限公司 | Adhesive, reinforcing plate for flexible flat cable and preparation method of reinforcing plate |
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| CN110862796B (en) | 2022-02-08 |
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