CN117904879A - Adhesive and method for preparing soft continuous fiber framework material by using same - Google Patents
Adhesive and method for preparing soft continuous fiber framework material by using same Download PDFInfo
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- CN117904879A CN117904879A CN202311800018.5A CN202311800018A CN117904879A CN 117904879 A CN117904879 A CN 117904879A CN 202311800018 A CN202311800018 A CN 202311800018A CN 117904879 A CN117904879 A CN 117904879A
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- adhesive
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- framework material
- carbon fiber
- continuous fiber
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- 239000000853 adhesive Substances 0.000 title claims abstract description 35
- 230000001070 adhesive effect Effects 0.000 title claims abstract description 35
- 239000000835 fiber Substances 0.000 title claims abstract description 34
- 239000000463 material Substances 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title description 7
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 14
- 239000003822 epoxy resin Substances 0.000 claims abstract description 13
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 13
- 238000002360 preparation method Methods 0.000 claims abstract description 10
- 229920005749 polyurethane resin Polymers 0.000 claims abstract description 9
- 239000008367 deionised water Substances 0.000 claims abstract description 7
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 7
- 239000002994 raw material Substances 0.000 claims abstract description 3
- 239000004593 Epoxy Substances 0.000 claims description 12
- 238000002156 mixing Methods 0.000 claims description 10
- 239000000084 colloidal system Substances 0.000 claims description 9
- 238000003756 stirring Methods 0.000 claims description 7
- 230000004913 activation Effects 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 238000007598 dipping method Methods 0.000 claims description 4
- 238000009998 heat setting Methods 0.000 claims description 4
- 238000002791 soaking Methods 0.000 claims description 4
- DGXAGETVRDOQFP-UHFFFAOYSA-N 2,6-dihydroxybenzaldehyde Chemical compound OC1=CC=CC(O)=C1C=O DGXAGETVRDOQFP-UHFFFAOYSA-N 0.000 claims description 3
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 3
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 239000004816 latex Substances 0.000 claims description 3
- 229920000126 latex Polymers 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 239000011230 binding agent Substances 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 239000002243 precursor Substances 0.000 claims description 2
- 229920000049 Carbon (fiber) Polymers 0.000 abstract description 23
- 239000004917 carbon fiber Substances 0.000 abstract description 23
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 21
- 239000004814 polyurethane Substances 0.000 abstract description 5
- 229920002635 polyurethane Polymers 0.000 abstract description 4
- 238000005452 bending Methods 0.000 abstract description 3
- 239000004841 bisphenol A epoxy resin Substances 0.000 abstract description 2
- 229920001971 elastomer Polymers 0.000 description 11
- 239000000243 solution Substances 0.000 description 9
- 239000011159 matrix material Substances 0.000 description 7
- 238000007654 immersion Methods 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 3
- -1 aromatic isocyanate Chemical class 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 239000012948 isocyanate Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 125000003700 epoxy group Chemical group 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 229920000538 Poly[(phenyl isocyanate)-co-formaldehyde] Polymers 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- 238000005411 Van der Waals force Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920006306 polyurethane fiber Polymers 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N urethane group Chemical group NC(=O)OCC JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Reinforced Plastic Materials (AREA)
Abstract
The invention relates to the technical field of continuous fiber framework material preparation, and discloses an adhesive which comprises the following raw materials in parts by weight: 42-50 parts of deionized water, 5-8 parts of silane coupling agent, 15-25 parts of bisphenol A type epoxy resin and 25-30 parts of aqueous polyurethane resin. The adhesive is used for treating the continuous carbon fiber, wherein a layer of soft complex is formed on the surface of the continuous fiber by the aqueous polyurethane resin and the bisphenol A epoxy resin, the soft complex is wrapped on the surface of the carbon fiber, the friction between the carbon fiber and the roller is reduced when the carbon fiber passes through the roller by utilizing the characteristic of high elasticity of polyurethane, the damage of the carbon fiber is reduced, and the formed soft complex film can lead the carbon fiber to be subjected to large-angle bending without being damaged.
Description
Technical Field
The invention relates to the technical field of continuous fiber framework material preparation, in particular to an adhesive and a method for preparing a soft continuous fiber framework material by using the same.
Background
The continuous fiber matrix material plays an important role in load transmission as a reinforcing phase of a continuous fiber composite material for transmission of load such as a belt, a tire, and the like. In order to improve the bearing capacity of rubber products such as transmission belts, tires and the like and fully play the role of the reinforcing phase of the continuous fiber framework material, the bearing capacity of the continuous fiber framework material and the adhesive force between the continuous fiber framework material and the fiber products need to be improved as much as possible. The carbon fiber has higher specific strength and specific modulus, good compression stability and design performance, and is more and more widely applied to industrial rubber products, and the continuous carbon fiber surface is inert and lacks functional groups interacted with a rubber matrix, so that the bonding force between the carbon fiber and the rubber is poor, the function of a continuous carbon fiber reinforced phase is difficult to fully play, and the service performance of the rubber products is further influenced. The continuous fiber framework material inevitably undergoes a plurality of rollers such as tensioning, gum dipping, baking, winding and the like in the preparation process, and rubber products such as a driving belt, a tire and the like also need to undergo repeated deformation in the use process; if the prepared continuous fiber framework material is too hard, on one hand, the laying of the framework material in the rubber product is not facilitated, and on the other hand, the framework material is easy to cause debonding and fracture between continuous fibers and a surface adhesive in repeated bending deformation, so that the performances of the continuous fiber framework material and the rubber product are reduced.
At present, an adhesive for one bath in the preparation of a continuous fiber framework material is prepared by dissolving epoxy resin and aromatic isocyanate in toluene or water to be used as an adhesive for fiber surface treatment, but the aromatic isocyanate has high structural rigidity, the prepared continuous fiber framework material is hard, and neither the aromatic isocyanate nor the epoxy resin can react with the surface of continuous carbon fibers, so that the adhesive between the carbon fibers and rubber can not be effectively enhanced, and therefore, the development of an adhesive for preparing a soft and interface enhanced continuous fiber framework material is needed.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides an adhesive and a method for preparing a soft continuous fiber framework material by using the adhesive.
In order to achieve the above object, the technical scheme of the present invention is as follows: the adhesive comprises the following raw materials in parts by weight: 42-50 parts of deionized water, 5-8 parts of silane coupling agent, 15-25 parts of bisphenol A type epoxy resin and 25-30 parts of aqueous polyurethane resin.
Further; the silane coupling agent is an epoxy silane coupling agent.
The other technical scheme of the invention is as follows: a method for preparing a soft continuous fiber framework material by using the adhesive, which comprises the following steps: and (3) soaking the continuous fiber precursor by using the adhesive, drying at 180 ℃ for 2min, heating to 200 ℃ for activation reaction for 5min, soaking the fiber rope by using an RFL colloid system after activation, performing heat setting at 200 ℃ for 2min, and then performing drafting at 200 ℃ by using a drafting machine to obtain a soft continuous fiber framework material finished product.
Further; the drafting tension is 600 g/root and the vehicle speed is 6 m/min.
Further; the preparation method of the RFL colloid is as follows: 2.8Kg of resorcinol-formaldehyde resin with 75% solid content is mixed with 16.5Kg of softened water and 2.2Kg of ammonia water with 25% concentration to obtain solution A; mixing 42Kg Ding Pi latex with 40% solid content with 14Kg softened water to obtain solution B; mixing and stirring the solution A and the solution B, standing for 24 hours, adding 22.5Kg of adhesive RP, and mixing and stirring to obtain the RFL colloid dipping system.
The invention has the beneficial effects that: the adhesive is used for treating the continuous carbon fiber, wherein a layer of soft complex is formed on the surface of the continuous fiber by the aqueous polyurethane resin and the bisphenol A epoxy resin, the soft complex is wrapped on the surface of the carbon fiber, the friction between the carbon fiber and the roller is reduced when the carbon fiber passes through the roller by utilizing the high elasticity characteristic of polyurethane, the damage of the carbon fiber is reduced, and the formed soft complex film can lead the carbon fiber to be subjected to large-angle bending without being damaged; the epoxy silane coupling agent is used as an intermediate bridge to improve the adhesive force between polyurethane and carbon fiber, wherein epoxy groups can react with urethane groups in the polyurethane, and silicon atoms can improve the Van der Waals force between the epoxy silane coupling agent and the carbon fiber; the epoxy resin on the surface of the carbon fiber and the epoxy group on the silane coupling agent can react with the phenolic resin in the two-immersion RFL, so that a carbon fiber-epoxy silane coupling agent-polyurethane/epoxy resin-phenolic resin-rubber stress transfer bridge is constructed, and the purposes of improving the adhesive force between the continuous fiber framework material and rubber and preparing a soft rope are achieved.
Detailed Description
The present invention will be described in detail with reference to specific examples, but the scope of protection is not limited thereto.
Bisphenol A type epoxy resin manufacturer is Nippon Kagaku Kogyo Co., ltd;
The water-based polyurethane resin manufacturer is a kesi polymer (China Co., ltd.);
The manufacturer of the epoxy type silane coupling agent is Shandong silicon new material Co., ltd;
polymeric p-diphenylmethane diisocyanate (pMDI) manufacturers are Wanhua chemical group Co., ltd;
the manufacturers of the adhesives RP are Yixing new materials limited companies.
Example 1
An adhesive, the preparation method is as follows: and (3) uniformly mixing and stirring 47g of deionized water, 5g of epoxy silane coupling agent, 20g of bisphenol A type epoxy resin and 28g of aqueous polyurethane resin to obtain the adhesive.
Example 2
An adhesive, the preparation method is as follows: 42g of deionized water, 8g of epoxy silane coupling agent, 25g of bisphenol A type epoxy resin and 25g of aqueous polyurethane resin are mixed and stirred uniformly to obtain the adhesive.
Example 3
An adhesive, the preparation method is as follows: 50g of deionized water, 5g of epoxy silane coupling agent, 15g of bisphenol A type epoxy resin and 30g of aqueous polyurethane resin are mixed and stirred uniformly to obtain the adhesive.
Example 4
A method for preparing a soft continuous fiber framework material: the continuous carbon fiber of 12K, T700,700 is immersed for 1.2min in an immersion tank, the adhesive prepared in the embodiment 1 is filled in the immersion tank, then the mixture is dried for 2min at 180 ℃, the temperature is raised to 200 ℃ for activation reaction for 5min, the cotton rope is immersed for 2min in a secondary immersion tank after activation, the RFL immersion colloid system is filled in the secondary immersion tank, then the mixture is subjected to heat setting for 2min at 200 ℃, and then the mixture is put into a drawing machine for drawing at 200 ℃, the drawing tension of the drawing machine is 600 g/root, the speed of the drawing machine is 6 m/min, and then the soft continuous fiber skeleton material finished product is obtained, and is rolled and is subjected to performance test after being parked for 12 hours.
The preparation method of the RFL colloid is as follows: 2.8Kg of resorcinol-formaldehyde resin with 75% solid content is mixed with 16.5Kg of softened water and 2.2Kg of ammonia water with 25% concentration to obtain solution A; mixing 42Kg Ding Pi latex with 40% solid content with 14Kg softened water to obtain solution B; mixing and stirring the solution A and the solution B, standing for 24 hours, adding 22.5Kg of adhesive RP, and mixing and stirring to obtain the RFL colloid dipping system.
Comparative example 1
A process for preparing a continuous fibrous framework material, differing from example 4 in that: a dip tank containing an aqueous solution of pMDI and epoxy, the method of making the pMDI and epoxy comprising: 5gpMDI g of bisphenol A type epoxy resin and 2g of deionized water are added, and the pMDI and the epoxy resin aqueous solution are obtained after dissolution.
Hardness test
The properties of the continuous fiber matrix materials prepared in example 4 and comparative example 1 were tested according to GB/T33099-2016 and the results are shown in Table 1.
TABLE 1
| Example 1 | Comparative example 1 | |
| Impregnating solution in an impregnating tank | Example 1 Adhesives | PMDI and epoxy resin aqueous solution |
| Drying temperature (DEG C) | 180 | 180 |
| Heat setting temperature (DEG C) | 200 | 200 |
| Framework material rope stiffness (gf) | 67 | 443 |
| Fracture Strength of framework Material (N) | 1704 | 1481 |
| Interfacial adhesion (N) | 399 | 372 |
As can be seen from Table 1, for the continuous carbon fiber of 12K, T700,700, the matrix material prepared with the binder of the present invention had a hardness of 67gf, which is much lower than the matrix material prepared in comparative example 1 (443), and the matrix material prepared according to the present invention had fracture strength and interfacial adhesion of 1704N and 399N, respectively, which are significantly higher than the fracture strength (1481) and interfacial adhesion (372) of the matrix material prepared in comparative example 1. From the test results, it can be seen that the adhesive of the invention can prepare a continuous fiber framework material which is soft and has excellent performance.
The above-described embodiments are merely preferred embodiments of the present invention, and the present invention is not limited in any way, and other variations and modifications may be made without departing from the technical aspects set forth in the claims.
Claims (5)
1. The adhesive is characterized by comprising the following raw materials in parts by weight: 42-50 parts of deionized water, 5-8 parts of silane coupling agent, 15-25 parts of bisphenol A type epoxy resin and 25-30 parts of aqueous polyurethane resin.
2. The adhesive of claim 1, wherein: the silane coupling agent is an epoxy silane coupling agent.
3. A method of making a soft continuous fibrous framework material using the binder of claim 1, wherein: and (3) soaking the continuous fiber precursor by using the adhesive, drying at 180 ℃ for 2min, heating to 200 ℃ for activation reaction for 5min, soaking the fiber rope by using an RFL colloid system after activation, performing heat setting at 200 ℃ for 2min, and then performing drafting at 200 ℃ by using a drafting machine to obtain a soft continuous fiber framework material finished product.
4. A method of making a soft continuous fibrous framework material as in claim 3, wherein: the drafting tension is 600 g/root and the vehicle speed is 6 m/min.
5. A method of making a soft continuous fibrous framework material as in claim 3, wherein: the preparation method of the RFL colloid is as follows: 2.8Kg of resorcinol-formaldehyde resin with 75% solid content is mixed with 16.5Kg of softened water and 2.2Kg of ammonia water with 25% concentration to obtain solution A; mixing 42Kg Ding Pi latex with 40% solid content with 14Kg softened water to obtain solution B; mixing and stirring the solution A and the solution B, standing for 24 hours, adding 22.5Kg of adhesive RP, and mixing and stirring to obtain the RFL colloid dipping system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311800018.5A CN117904879A (en) | 2023-12-26 | 2023-12-26 | Adhesive and method for preparing soft continuous fiber framework material by using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311800018.5A CN117904879A (en) | 2023-12-26 | 2023-12-26 | Adhesive and method for preparing soft continuous fiber framework material by using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117904879A true CN117904879A (en) | 2024-04-19 |
Family
ID=90695940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311800018.5A Pending CN117904879A (en) | 2023-12-26 | 2023-12-26 | Adhesive and method for preparing soft continuous fiber framework material by using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117904879A (en) |
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2023
- 2023-12-26 CN CN202311800018.5A patent/CN117904879A/en active Pending
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