阅读说明：本技术 一种高强耐腐蚀型复合铝箔及其制备方法 (High-strength corrosion-resistant composite aluminum foil and preparation method thereof ) 是由 杜承庆 张文超 于 2020-12-30 设计创作，主要内容包括：本发明公开了一种高强耐腐蚀型复合铝箔,包括铝箔以及涂覆在铝箔上的耐腐蚀涂层组成,按重量份数计,该高强耐腐蚀型复合铝箔的耐腐蚀涂层配方包括：聚四氟乙烯100-150份、改性环氧树脂175-180份、二缩三丙二醇二丙烯酸酯20-35份、季戊四醇三丙烯酸酯15-30份；按重量份数计,该高强耐腐蚀型复合铝箔的配方包括：铝5000-7000份、铁40-60份,硅15-30份,铜7-16份,锰110-170份,镁3-5份,锌100-160份,钛1-5份、铬17-19份、镍8-11份。本发明中的高强耐腐蚀型复合铝箔,通过在铝中添加铁,硅,铜,锰,镁,锌,钛、铬、镍等耐腐蚀金属元素,制备出的铝箔具有一定的耐腐蚀性,再者,通过在铝箔外壁上涂覆有耐腐蚀涂层进一步提高本铝箔的耐腐蚀性。(The invention discloses a high-strength corrosion-resistant composite aluminum foil, which comprises an aluminum foil and a corrosion-resistant coating coated on the aluminum foil, wherein the corrosion-resistant coating comprises the following components in parts by weight: 100-150 parts of polytetrafluoroethylene, 180 parts of modified epoxy resin 175, 20-35 parts of tripropylene glycol diacrylate and 15-30 parts of pentaerythritol triacrylate; the formula of the high-strength corrosion-resistant composite aluminum foil comprises the following components in parts by weight: 7000 parts of aluminum 5000-containing material, 40-60 parts of iron, 15-30 parts of silicon, 7-16 parts of copper, 170 parts of manganese 110-containing material, 3-5 parts of magnesium, 160 parts of zinc 100-containing material, 1-5 parts of titanium, 17-19 parts of chromium and 8-11 parts of nickel. According to the high-strength corrosion-resistant composite aluminum foil, corrosion-resistant metal elements such as iron, silicon, copper, manganese, magnesium, zinc, titanium, chromium, nickel and the like are added into aluminum, the prepared aluminum foil has certain corrosion resistance, and the corrosion resistance of the aluminum foil is further improved by coating a corrosion-resistant coating on the outer wall of the aluminum foil.)

1. The utility model provides a high-strength corrosion-resistant type composite aluminum foil, includes the aluminium foil and coats the corrosion-resistant coating composition on the aluminium foil, its characterized in that: the formula of the corrosion-resistant coating of the high-strength corrosion-resistant composite aluminum foil comprises the following components in parts by weight: 100-150 parts of polytetrafluoroethylene, 180 parts of modified epoxy resin 175, 20-35 parts of tripropylene glycol diacrylate and 15-30 parts of pentaerythritol triacrylate;

the formula of the high-strength corrosion-resistant composite aluminum foil comprises the following components in parts by weight: 7000 parts of aluminum 5000-containing material, 40-60 parts of iron, 15-30 parts of silicon, 7-16 parts of copper, 170 parts of manganese 110-containing material, 3-5 parts of magnesium, 160 parts of zinc 100-containing material, 1-5 parts of titanium, 17-19 parts of chromium and 8-11 parts of nickel.

2. The high-strength corrosion-resistant composite aluminum foil according to claim 1, wherein: the formula of the corrosion-resistant coating of the high-strength corrosion-resistant composite aluminum foil comprises the following components in parts by weight: 100 parts of polytetrafluoroethylene, 175 parts of modified epoxy resin, 20 parts of tripropylene glycol diacrylate and 15 parts of pentaerythritol triacrylate;

the formula of the high-strength corrosion-resistant composite aluminum foil comprises the following components in parts by weight: 5000 parts of aluminum, 40 parts of iron, 15 parts of silicon, 7 parts of copper, 110 parts of manganese, 3 parts of magnesium, 100 parts of zinc, 1 part of titanium, 17 parts of chromium and 8 parts of nickel.

3. The high-strength corrosion-resistant composite aluminum foil according to claim 1, wherein: the formula of the corrosion-resistant coating of the high-strength corrosion-resistant composite aluminum foil comprises the following components in parts by weight: 125 parts of polytetrafluoroethylene, 178 parts of modified epoxy resin, 30 parts of tripropylene glycol diacrylate and 25 parts of pentaerythritol triacrylate;

the formula of the high-strength corrosion-resistant composite aluminum foil comprises the following components in parts by weight: 6000 parts of aluminum, 50 parts of iron, 25 parts of silicon, 12 parts of copper, 150 parts of manganese, 4 parts of magnesium, 130 parts of zinc, 3 parts of titanium, 18 parts of chromium and 10 parts of nickel.

4. The high-strength corrosion-resistant composite aluminum foil according to claim 1, wherein: the formula of the corrosion-resistant coating of the high-strength corrosion-resistant composite aluminum foil comprises the following components in parts by weight: 150 parts of polytetrafluoroethylene, 180 parts of modified epoxy resin, 35 parts of tripropylene glycol diacrylate and 30 parts of pentaerythritol triacrylate;

the formula of the high-strength corrosion-resistant composite aluminum foil comprises the following components in parts by weight: 7000 parts of aluminum, 60 parts of iron, 30 parts of silicon, 16 parts of copper, 170 parts of manganese, 5 parts of magnesium, 160 parts of zinc, 5 parts of titanium, 19 parts of chromium and 11 parts of nickel.

5. The preparation method of the high-strength corrosion-resistant composite aluminum foil according to claim 1, characterized by comprising the following steps:

s1, preparing materials, namely weighing the materials for later use according to the formula of the high-strength corrosion-resistant composite aluminum foil and the preparation method thereof by weight;

s2, preparing an aluminum foil, melting aluminum, iron, silicon, copper, manganese, magnesium, zinc, titanium, chromium and nickel to obtain a metal mixed liquid, then cooling and preforming, and casting and rolling the metal mixed liquid by adopting a continuous casting and rolling method after forming; rough rolling the cast and rolled blank by a rough rolling mill for three times; feeding the rough-rolled coil stock into a furnace for high-temperature annealing; rolling the coil stock for 3-5 times by a medium rolling mill after high-temperature annealing; trimming the product after the medium rolling on a slitting machine; rolling the edge-cut product on a finishing mill for 6-9 times to the thickness of a finished product, and slitting by using a slitting machine to obtain an aluminum foil blank;

s3, preparing a corrosion-resistant coating of the high-strength corrosion-resistant composite aluminum foil, sequentially putting polytetrafluoroethylene and modified epoxy resin into a heating reaction kettle, stirring at a medium speed of 90-100 ℃ for 30-45 minutes, then heating the reaction kettle to 110-120 ℃, putting tripropylene glycol diacrylate and pentaerythritol triacrylate, and stirring at a low speed for 1-2 hours;

s5, viscosity detection, wherein the viscosity of the solution in the reaction kettle needs to be detected for multiple times in the low-speed stirring process, and when the viscosity reaches the standard, the mixed solution is stirred for 10-20 minutes to complete the preparation;

s6, cleaning the aluminum foil, cleaning the two sides of the aluminum foil, and drying the aluminum foil by a hot air blower;

and S7, coating the corrosion-resistant coating on the surface of the aluminum foil by using a film coater, and drying to finish the preparation.

6. The high-strength corrosion-resistant composite aluminum foil and the preparation method thereof according to claim 5, wherein: the reaction kettle comprises a kettle body, a kettle cover, a jacket, a stirrer, a transmission device, a shaft seal device and a support in the step S3, and the reaction kettle exchanges heat through external circulation.

7. The high-strength corrosion-resistant composite aluminum foil and the preparation method thereof according to claim 5, wherein: the drying temperature of the hot air blower in the step S6 is 160-210 ℃.

8. The high-strength corrosion-resistant composite aluminum foil and the preparation method thereof according to claim 5, wherein: the viscosity range of the step S5 is 18-20mm 2/S.

Technical Field

The invention belongs to the technical field of high-strength corrosion-resistant composite aluminum foils, and particularly relates to a high-strength corrosion-resistant composite aluminum foil; in particular to a preparation method of the high-strength corrosion-resistant composite aluminum foil.

Background

The aluminum foil is a hot stamping material which is directly rolled into a sheet by using metal aluminum, and the hot stamping effect of the aluminum foil is similar to that of pure silver foil hot stamping, so the aluminum foil is also called false silver foil. Because the aluminum has soft texture, good ductility and silvery white luster, if the rolled sheet is pasted on offset paper by sodium silicate and other substances to prepare an aluminum foil sheet, the aluminum foil sheet can be printed, and the aluminum foil is widely used for food, beverage, cigarette, medicine, photographic base plate, household daily necessities and the like due to the excellent characteristics and is generally used as a packaging material of the aluminum foil sheet; an electrolytic capacitor material; heat insulating materials for buildings, vehicles, ships, houses, and the like; the aluminum foil can be used as a packaging material, has the advantages of moisture resistance, air tightness, shading, corrosion resistance, fragrance retention, no toxicity, no odor and the like, and is easy to process various beautiful patterns and figures due to the elegant silvery luster, so that the aluminum foil is more popular with people.

However, the aluminum foil is easy to oxidize and darken in color, and fades when being rubbed and touched, so that the aluminum foil is not suitable for hot stamping of book covers and the like which are stored for a long time, and the traditional aluminum foil is easy to rot even if being used for a long time, and has poor corrosion resistance and durability, so that the high-strength corrosion-resistant composite aluminum foil and the preparation method thereof are provided, and the corrosion resistance of the aluminum foil can be effectively improved.

Disclosure of Invention

The invention aims to provide a high-strength corrosion-resistant composite aluminum foil, a preparation method thereof and a preparation method thereof, and aims to solve the problems that the traditional aluminum foil is easy to rot due to overlong service time and has poor corrosion resistance and durability in the background technology.

In order to achieve the purpose, the invention adopts the following technical scheme:

the high-strength corrosion-resistant composite aluminum foil comprises an aluminum foil and a corrosion-resistant coating coated on the aluminum foil, and the formula of the corrosion-resistant coating of the high-strength corrosion-resistant composite aluminum foil comprises the following components in parts by weight: 100-150 parts of polytetrafluoroethylene, 180 parts of modified epoxy resin 175, 20-35 parts of tripropylene glycol diacrylate and 15-30 parts of pentaerythritol triacrylate;

the formula of the high-strength corrosion-resistant composite aluminum foil comprises the following components in parts by weight: 7000 parts of aluminum 5000-containing material, 40-60 parts of iron, 15-30 parts of silicon, 7-16 parts of copper, 170 parts of manganese 110-containing material, 3-5 parts of magnesium, 160 parts of zinc 100-containing material, 1-5 parts of titanium, 17-19 parts of chromium and 8-11 parts of nickel.

As a preferred technical scheme, the formula of the corrosion-resistant coating of the high-strength corrosion-resistant composite aluminum foil comprises the following components in parts by weight: 100 parts of polytetrafluoroethylene, 175 parts of modified epoxy resin, 20 parts of tripropylene glycol diacrylate and 15 parts of pentaerythritol triacrylate;

the formula of the high-strength corrosion-resistant composite aluminum foil comprises the following components in parts by weight: 5000 parts of aluminum, 40 parts of iron, 15 parts of silicon, 7 parts of copper, 110 parts of manganese, 3 parts of magnesium, 100 parts of zinc, 1 part of titanium, 17 parts of chromium and 8 parts of nickel.

As a preferred technical scheme, the formula of the corrosion-resistant coating of the high-strength corrosion-resistant composite aluminum foil comprises the following components in parts by weight: 125 parts of polytetrafluoroethylene, 178 parts of modified epoxy resin, 30 parts of tripropylene glycol diacrylate and 25 parts of pentaerythritol triacrylate;

the formula of the high-strength corrosion-resistant composite aluminum foil comprises the following components in parts by weight: 6000 parts of aluminum, 50 parts of iron, 25 parts of silicon, 12 parts of copper, 150 parts of manganese, 4 parts of magnesium, 130 parts of zinc, 3 parts of titanium, 18 parts of chromium and 10 parts of nickel.

As a preferred technical scheme, the formula of the corrosion-resistant coating of the high-strength corrosion-resistant composite aluminum foil comprises the following components in parts by weight: 150 parts of polytetrafluoroethylene, 180 parts of modified epoxy resin, 35 parts of tripropylene glycol diacrylate and 30 parts of pentaerythritol triacrylate;

the formula of the high-strength corrosion-resistant composite aluminum foil comprises the following components in parts by weight: 7000 parts of aluminum, 60 parts of iron, 30 parts of silicon, 16 parts of copper, 170 parts of manganese, 5 parts of magnesium, 160 parts of zinc, 5 parts of titanium, 19 parts of chromium and 11 parts of nickel.

A preparation method of a high-strength corrosion-resistant composite aluminum foil comprises the following steps:

s1, preparing materials, namely weighing the materials for later use according to the formula of the high-strength corrosion-resistant composite aluminum foil and the preparation method thereof by weight;

s2, preparing an aluminum foil, melting aluminum, iron, silicon, copper, manganese, magnesium, zinc, titanium, chromium and nickel to obtain a metal mixed liquid, then cooling and preforming, and casting and rolling the metal mixed liquid by adopting a continuous casting and rolling method after forming; rough rolling the cast and rolled blank by a rough rolling mill for three times; feeding the rough-rolled coil stock into a furnace for high-temperature annealing; rolling the coil stock for 3-5 times by a medium rolling mill after high-temperature annealing; trimming the product after the medium rolling on a slitting machine; rolling the edge-cut product on a finishing mill for 6-9 times to the thickness of a finished product, and slitting by using a slitting machine to obtain an aluminum foil blank;

s3, preparing a corrosion-resistant coating of the high-strength corrosion-resistant composite aluminum foil, sequentially putting polytetrafluoroethylene and modified epoxy resin into a heating reaction kettle, stirring at a medium speed of 90-100 ℃ for 30-45 minutes, then heating the reaction kettle to 110-120 ℃, putting tripropylene glycol diacrylate and pentaerythritol triacrylate, and stirring at a low speed for 1-2 hours;

s5, viscosity detection, wherein the viscosity of the solution in the reaction kettle needs to be detected for multiple times in the low-speed stirring process, and when the viscosity reaches the standard, the mixed solution is stirred for 10-20 minutes to complete the preparation;

s6, cleaning the aluminum foil, cleaning the two sides of the aluminum foil, and drying the aluminum foil by a hot air blower;

and S7, coating the corrosion-resistant coating on the surface of the aluminum foil by using a film coater, and drying to finish the preparation.

As a preferable technical solution, the reaction kettle described in step S3 includes a kettle body, a kettle cover, a jacket, a stirrer, a transmission device, a shaft seal device, and a support, and the reaction kettle exchanges heat through external circulation.

As a preferable technical solution, the drying temperature of the hot air blower in step S6 is 160-210 ℃.

As a preferable technical scheme, the viscosity range of the step S5 is 18-20mm 2/S.

The invention has the technical effects and advantages that: compared with the prior art, the high-strength corrosion-resistant composite aluminum foil and the preparation method thereof provided by the invention have the following advantages:

the high-strength corrosion-resistant composite aluminum foil has certain corrosion resistance by adding corrosion-resistant metal elements such as iron, silicon, copper, manganese, magnesium, zinc, titanium, chromium, nickel and the like into aluminum, and the corrosion resistance of the aluminum foil is further improved by coating a corrosion-resistant coating prepared from polytetrafluoroethylene, modified epoxy resin, tripropylene glycol diacrylate and pentaerythritol triacrylate on the outer wall of the aluminum foil.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

The high-strength corrosion-resistant composite aluminum foil comprises an aluminum foil and a corrosion-resistant coating coated on the aluminum foil, wherein the corrosion-resistant coating comprises 100 parts by weight of polytetrafluoroethylene, 175 parts by weight of modified epoxy resin, 20 parts by weight of tripropylene glycol diacrylate and 15 parts by weight of pentaerythritol triacrylate;

the formula of the high-strength corrosion-resistant composite aluminum foil comprises the following components in parts by weight: 5000 parts of aluminum, 40 parts of iron, 15 parts of silicon, 7 parts of copper, 110 parts of manganese, 3 parts of magnesium, 100 parts of zinc, 1 part of titanium, 17 parts of chromium and 8 parts of nickel.

The invention relates to a preparation method of a high-strength corrosion-resistant composite aluminum foil, which comprises the following steps:

s1, preparing materials, namely weighing the materials for later use according to the formula of the high-strength corrosion-resistant composite aluminum foil and the preparation method thereof by weight;

s2, preparing an aluminum foil, melting aluminum, iron, silicon, copper, manganese, magnesium, zinc, titanium, chromium and nickel to obtain a metal mixed liquid, then cooling and preforming, and casting and rolling the metal mixed liquid by adopting a continuous casting and rolling method after forming; rough rolling the cast and rolled blank by a rough rolling mill for three times; feeding the rough-rolled coil stock into a furnace for high-temperature annealing; rolling the coil stock for 3-5 times by a medium rolling mill after high-temperature annealing; trimming the product after the medium rolling on a slitting machine; rolling the edge-cut product on a finishing mill for 6-9 times to the thickness of a finished product, and slitting by using a slitting machine to obtain an aluminum foil blank;

s3, preparing a corrosion-resistant coating of the high-strength corrosion-resistant composite aluminum foil, sequentially putting polytetrafluoroethylene and modified epoxy resin into a heating reaction kettle, stirring at a medium speed of 90-100 ℃ for 30-45 minutes, then heating the reaction kettle to 110-120 ℃, putting tripropylene glycol diacrylate and pentaerythritol triacrylate, and stirring at a low speed for 1-2 hours;

s5, viscosity detection, wherein the viscosity of the solution in the reaction kettle needs to be detected for multiple times in the low-speed stirring process, and when the viscosity reaches the standard, the mixed solution is stirred for 10-20 minutes to complete the preparation;

s6, cleaning the aluminum foil, cleaning the two sides of the aluminum foil, and drying the aluminum foil by a hot air blower;

and S7, coating the corrosion-resistant coating on the surface of the aluminum foil by using a film coater, and drying to finish the preparation.

The reaction kettle comprises a kettle body, a kettle cover, a jacket, a stirrer, a transmission device, a shaft seal device and a support, wherein the kettle body, the kettle cover, the jacket, the stirrer, the transmission device, the shaft seal device and the support are included in the step S3, and the reaction kettle performs heat exchange through external circulation.

Wherein, the drying temperature of the hot air blower in the step S6 is 160-210 ℃.

Wherein the viscosity range of the step S5 is 18-20mm2/S

Example 2

Different from the embodiment 1, the formula of the corrosion-resistant coating of the high-strength corrosion-resistant composite aluminum foil comprises the following components in parts by weight: 125 parts of polytetrafluoroethylene, 178 parts of modified epoxy resin, 30 parts of tripropylene glycol diacrylate and 25 parts of pentaerythritol triacrylate;

the formula of the high-strength corrosion-resistant composite aluminum foil comprises the following components in parts by weight: 6000 parts of aluminum, 50 parts of iron, 25 parts of silicon, 12 parts of copper, 150 parts of manganese, 4 parts of magnesium, 130 parts of zinc, 3 parts of titanium, 18 parts of chromium and 10 parts of nickel.

Example 3

Different from the embodiment 1, the formula of the corrosion-resistant coating of the high-strength corrosion-resistant composite aluminum foil comprises the following components in parts by weight: 150 parts of polytetrafluoroethylene, 180 parts of modified epoxy resin, 35 parts of tripropylene glycol diacrylate and 30 parts of pentaerythritol triacrylate;

the formula of the high-strength corrosion-resistant composite aluminum foil comprises the following components in parts by weight: 7000 parts of aluminum, 60 parts of iron, 30 parts of silicon, 16 parts of copper, 170 parts of manganese, 5 parts of magnesium, 160 parts of zinc, 5 parts of titanium, 19 parts of chromium and 11 parts of nickel.

The specific formulation data for the five sets of examples of the invention are as follows:

	example 1	Example 2	Example 3
				Polytetrafluoroethylene	100 portions of	125 portions of	150 portions of
Modified epoxy resin	175 portions of	178 portions of	180 portions of
				Tripropylene glycol diacrylate	20 portions of	30 portions of	35 portions of
Pentaerythritol triacrylate	15 portions of	25 portions of	30 portions of
				Aluminium	5000 portions of	6000 portions of	7000 portions
Iron	40 portions of	50 portions of	60 portions of
				Silicon	15 portions of	25 portions of	30 portions of
Copper (Cu)	7 portions of	12 portions of	16 portions of
				Manganese oxide	110 portions of	150 portions of	170 portions of
Magnesium alloy	3 portions of	4 portions of	5 portions of
				Zinc	100 portions of	130 portions of	160 portions of
Titanium (IV)	1 part of	3 portions of	5 portions of
				Chromium (III)	17 portions of	18 portions of	19 portions of
Nickel (II)	8 portions of	10 portions of	11 portions of

The high-strength corrosion-resistant composite aluminum foil has certain corrosion resistance by adding corrosion-resistant metal elements such as iron, silicon, copper, manganese, magnesium, zinc, titanium, chromium, nickel and the like into aluminum, and the corrosion resistance of the aluminum foil is further improved by coating a corrosion-resistant coating prepared from polytetrafluoroethylene, modified epoxy resin, tripropylene glycol diacrylate and pentaerythritol triacrylate on the outer wall of the aluminum foil.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.