Polytetrafluoroethylene product with corrosion resistance

Abstract

The utility model discloses a polytetrafluoroethylene product with corrosion resistance, which comprises a product base layer, an inner corrosion-resistant layer is arranged on the surface of the product base layer, the product base layer is made of polytetrafluoroethylene, and the inner corrosion-resistant layer is matched with the product base layer to improve the corrosion-resistant effect of the product. A buffer protection layer is arranged on the surface of the inner anti-corrosion layer, the buffer protection layer is used for protecting the product base layer and the inner anti-corrosion layer and buffering external impact, and the inner anti-corrosion layer comprises a first anti-corrosion coating and a second anti-corrosion coating; in the working process, the inner anti-corrosion layer comprises the first anti-corrosion coating and the second anti-corrosion coating, the first anti-corrosion coating can isolate the base layer of the product from the external environment and has the anti-corrosion effect on the base layer of the product, and the second anti-corrosion coating, the second elastic layer and the electroplating anti-corrosion layer are matched with one another, so that the anti-corrosion effect is achieved. The corrosion-resistant effect on the base layer of the product is further improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of polytetrafluoroethylene products, in particular to a polytetrafluoroethylene product with corrosion resistance. Background Art

[0002] Polytetrafluoroethylene products have strong corrosion resistance and can be stretched in both longitudinal and transverse directions to form a large number of pores. As a new material, it can be compounded with other fabrics to make smoke and dust solid phase anti-corrosion filter bags or waterproof, breathable, windproof and warm rain gear sportswear, cold-proof clothing, special protective clothing and lightweight tents. In order to improve the corrosion resistance of equipment, polytetrafluoroethylene is generally used as the material for equipment parts, but it still has the following defects:

[0003] Since polytetrafluoroethylene has a single corrosion resistance effect, when the outside is impacted and worn, the corrosion resistance effect decreases. Utility Model Content

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a polytetrafluoroethylene product with corrosion resistance, which effectively solves the problem that the corrosion resistance of polytetrafluoroethylene is single and poor.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a polytetrafluoroethylene product with corrosion resistance, comprising a product base, wherein the surface of the product base is provided with an inner corrosion protection layer, the material of the product base is polytetrafluoroethylene, and the inner corrosion protection layer cooperates with the product base to improve the corrosion resistance of the product;

[0006] A buffer protection layer is provided on the surface of the inner anti-corrosion layer, which is used to protect the product base and the inner anti-corrosion layer and buffer external impacts;

[0007] The surface of the buffer protective layer is provided with an outer anti-corrosion layer, and the outer anti-corrosion layer is used to provide external corrosion resistance to the buffer protective layer;

[0008] An external waterproof layer is provided on the outside of the external anti-corrosion layer. The external waterproof layer is used to produce a water transport effect on the external anti-corrosion layer, thereby reducing the impact of prolonged contact with water on the external anti-corrosion layer.

[0009] Preferably, the inner anti-corrosion layer includes a first corrosion-resistant coating and a second corrosion-resistant coating. The first corrosion-resistant coating is coated on the surface of the product base. The material of the first corrosion-resistant coating is polyurethane. Polyurethane has strong elasticity and good sealing properties, which improves the isolation effect of the product base and the external environment. The material of the second corrosion-resistant coating is polytetrafluoroethylene.

[0010] Preferably, the buffer protective layer includes a first elastic layer and a second elastic layer, the first elastic layer is coated on the surface of the second corrosion-resistant coating, and the material of the first elastic layer is epoxy asphalt, and the second elastic layer is coated on the surface of the first elastic layer, and the material of the second elastic layer is styrene-butadiene rubber.

[0011] Preferably, the outer anti-corrosion layer includes a buffer adhesion layer and an electroplated corrosion-resistant layer. The buffer adhesion layer is coated on the surface of the second elastic layer. The buffer adhesion layer is made of silicone rubber, and the electroplated corrosion-resistant layer is a galvanized layer electroplated on the surface of the buffer adhesion layer.

[0012] Preferably, the external waterproof layer includes a first waterproof coating layer and a second waterproof coating layer, the material of the first waterproof coating layer is polyurethane, and the material of the second waterproof coating layer is SBS modified asphalt. The first waterproof coating layer and the second waterproof coating layer are coated on the surface of the electroplated corrosion-resistant layer to reduce the contact between the liquid and the electroplated corrosion-resistant layer.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] During operation, the inner anti-corrosion layer includes a first corrosion-resistant coating and a second corrosion-resistant coating. The first corrosion-resistant coating can isolate the product base from the external environment and has a corrosion-resistant effect on the product base, while the second corrosion-resistant coating, the second elastic layer and the electroplated corrosion-resistant layer cooperate with each other to further improve the corrosion-resistant effect on the product base.

[0015] During operation, the first corrosion-resistant coating, the first elastic layer, the second elastic layer and the buffer adhesion layer are all elastic, thereby forming a four-layer buffer effect on the outside of the product base, thereby improving the protective buffer effect of the product base. At the same time, the buffer adhesion layer can serve as a galvanizing carrier, facilitating the formation of the electroplated corrosion-resistant layer on the surface of the product base, thereby facilitating corrosion protection;

[0016] During operation, an external waterproof layer is provided on the surface of the external anti-corrosion layer. The external waterproof layer includes a first waterproof coating layer and a second waterproof coating layer. The material of the first waterproof coating layer is polyurethane, and the material of the second waterproof coating layer is SBS modified asphalt. The first waterproof coating layer and the second waterproof coating layer are coated on the surface of the electroplated corrosion-resistant layer to reduce the contact between the liquid and the electroplated corrosion-resistant layer, thereby ensuring the long-lasting corrosion-resistant effect of the electroplated corrosion-resistant layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0018] In the attached figure:

[0019] Figure 1 This is a schematic structural diagram of a polytetrafluoroethylene product with corrosion resistance according to the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of the inner anti-corrosion layer of the utility model;

[0021] Figure 3 This is a schematic diagram of the buffer protection layer structure of the present utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the outer anti-corrosion layer of the utility model;

[0023] Figure 5 This is a schematic diagram of the external waterproof layer structure of the present utility model.

[0024] In the figure: 1. Product base layer; 2. Inner anti-corrosion layer; 201. First corrosion-resistant coating; 202. Second corrosion-resistant coating; 3. Buffer protection layer; 301. First elastic layer; 302. Second elastic layer; 4. External anti-corrosion layer; 401. Buffer adhesion layer; 402. Electroplated corrosion-resistant layer; 5. External waterproof layer; 501. First waterproof coating layer; 502. Second waterproof coating layer. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0026] Embodiment 1, by Figure 1-5 The utility model relates to a polytetrafluoroethylene product with corrosion resistance, including a product base 1, the surface of the product base 1 is provided with an inner anti-corrosion layer 2, the material of the product base 1 is polytetrafluoroethylene, the inner anti-corrosion layer 2 cooperates with the product base 1 to improve the corrosion resistance of the product, the surface of the inner anti-corrosion layer 2 is provided with a buffer protection layer 3, the buffer protection layer 3 is used to protect the product base 1 and the inner anti-corrosion layer 2, and to buffer external impact, the surface of the buffer protection layer 3 is provided with an outer anti-corrosion layer 4, the outer anti-corrosion layer 4 is used to provide external corrosion resistance to the buffer protection layer 3, the outer side of the outer anti-corrosion layer 4 is provided with an external waterproof layer 5, the external waterproof layer 5 is used to produce a water transport effect on the external anti-corrosion layer 4, reduce long-term contact with water, and affect the external anti-corrosion layer 4.

[0027] The inner anti-corrosion layer 2 includes a first corrosion-resistant coating 201 and a second corrosion-resistant coating 202. The first corrosion-resistant coating 201 is coated on the surface of the product base 1. The material of the first corrosion-resistant coating 201 is polyurethane. Polyurethane has strong elasticity and good sealing properties, which improves the isolation effect between the product base 1 and the external environment. The material of the second corrosion-resistant coating 202 is polytetrafluoroethylene.

[0028] The buffer protection layer 3 includes a first elastic layer 301 and a second elastic layer 302. The first elastic layer 301 is coated on the surface of the second corrosion-resistant coating 202. The material of the first elastic layer 301 is epoxy asphalt. The second elastic layer 302 is coated on the surface of the first elastic layer 301. The material of the second elastic layer 302 is styrene-butadiene rubber.

[0029] The outer anti-corrosion layer 4 includes a buffer adhesion layer 401 and an electroplated corrosion-resistant layer 402. The buffer adhesion layer 401 is coated on the surface of the second elastic layer 302. The material of the buffer adhesion layer 401 is silicone rubber. The first corrosion-resistant coating 201, the first elastic layer 301, the second elastic layer 302 and the buffer adhesion layer 401 are all elastic, thereby forming a four-layer buffer effect on the outside of the product base 1, thereby improving the protective buffer effect of the product base 1. At the same time, the buffer adhesion layer 401 can be used as a galvanized carrier to facilitate the electroplating of the corrosion-resistant layer 40 2 is formed on the surface of the product base 1 to facilitate corrosion protection. The electroplated corrosion-resistant layer 402 is a zinc layer electroplated on the surface of the buffer adhesion layer 401. The inner corrosion-resistant layer 2 includes a first corrosion-resistant coating 201 and a second corrosion-resistant coating 202. The first corrosion-resistant coating 201 can isolate the product base 1 from the external environment and has a corrosion-resistant effect on the product base 1. The second corrosion-resistant coating 202, the second elastic layer 302 and the electroplated corrosion-resistant layer 402 cooperate with each other to further improve the corrosion-resistant effect on the product base 1.

[0030] The external waterproof layer 5 includes a first waterproof coating layer 501 and a second waterproof coating layer 502. The material of the first waterproof coating layer 501 is polyurethane, and the material of the second waterproof coating layer 502 is SBS modified asphalt. The first waterproof coating layer 501 and the second waterproof coating layer 502 are coated on the surface of the electroplated corrosion-resistant layer 402 to reduce the contact between the liquid and the electroplated corrosion-resistant layer 402. The surface of the external anti-corrosion layer 4 is provided with an external waterproof layer 5. The external waterproof layer 5 includes a first waterproof coating layer 501 and a second waterproof coating layer 502. The material of the first waterproof coating layer 501 is polyurethane, and the material of the second waterproof coating layer 502 is SBS modified asphalt. The first waterproof coating layer 501 and the second waterproof coating layer 502 are coated on the surface of the electroplated corrosion-resistant layer 402 to reduce the contact between the liquid and the electroplated corrosion-resistant layer 402, thereby ensuring the long-lasting corrosion resistance of the electroplated corrosion-resistant layer 402.

[0031] Working principle: When working, first, the surface of the product base 1 is provided with an inner corrosion-resistant layer 2, and the inner corrosion-resistant layer 2 includes a first corrosion-resistant coating 201 and a second corrosion-resistant coating 202. The first corrosion-resistant coating 201 is applied to the surface of the product base 1. The material of the first corrosion-resistant coating 201 is polyurethane, and the material of the second corrosion-resistant coating 202 is polytetrafluoroethylene. Polyurethane has strong elasticity and good sealing performance, which improves the isolation effect of the product base 1 from the external environment and has a corrosion-resistant effect on the product base 1. The material of the second corrosion-resistant coating 202 is the same as that of the product base 1. Polytetrafluoroethylene has strong corrosion resistance.

[0032] A buffer protection layer 3 is provided on the surface of the inner anti-corrosion layer 2. The buffer protection layer 3 includes a first elastic layer 301 and a second elastic layer 302. The first elastic layer 301 is coated on the surface of the second corrosion-resistant coating 202. The material of the first elastic layer 301 is epoxy asphalt. The second elastic layer 302 is coated on the surface of the first elastic layer 301. The material of the second elastic layer 302 is styrene-butadiene rubber. The epoxy asphalt and styrene-butadiene rubber can buffer the impact force, avoid damage to the inner anti-corrosion layer 2, and improve the corrosion resistance. At the same time, the styrene-butadiene rubber itself has corrosion resistance.

[0033] An outer corrosion-resistant layer 4 is provided on the surface of the buffer protection layer 3. The outer corrosion-resistant layer 4 includes a buffer adhesion layer 401 and an electroplated corrosion-resistant layer 402. The buffer adhesion layer 401 is coated on the surface of the second elastic layer 302. The buffer adhesion layer 401 is made of silicone rubber. The electroplated corrosion-resistant layer 402 is a zinc-plated layer electroplated on the surface of the buffer adhesion layer 401. The silicone rubber has elasticity and provides buffering protection for the product base layer 1. At the same time, the silicone rubber can serve as a carrier for zinc plating, and the zinc plating layer can further provide corrosion resistance for the product base layer 1.

[0034] An external waterproof layer 5 is provided on the surface of the external anti-corrosion layer 4. The external waterproof layer 5 includes a first waterproof coating layer 501 and a second waterproof coating layer 502. The material of the first waterproof coating layer 501 is polyurethane, and the material of the second waterproof coating layer 502 is SBS modified asphalt. The first waterproof coating layer 501 and the second waterproof coating layer 502 are coated on the surface of the electroplated corrosion-resistant layer 402 to reduce the contact between the liquid and the electroplated corrosion-resistant layer 402, thereby ensuring the long-lasting corrosion resistance of the electroplated corrosion-resistant layer 402.

Claims

1. A polytetrafluoroethylene product having corrosion resistance, comprising a product base (1), characterized in that: The surface of the product base (1) is provided with an inner anti-corrosion layer (2), the material of the product base (1) is polytetrafluoroethylene, and the inner anti-corrosion layer (2) cooperates with the product base (1) to improve the corrosion resistance of the product; A buffer protection layer (3) is provided on the surface of the inner anti-corrosion layer (2), and the buffer protection layer (3) is used to protect the product base layer (1) and the inner anti-corrosion layer (2) and to buffer external impacts; An outer anti-corrosion layer (4) is provided on the surface of the buffer protective layer (3), and the outer anti-corrosion layer (4) is used to provide external corrosion resistance to the buffer protective layer (3); An external waterproof layer (5) is provided on the outside of the external anti-corrosion layer (4). The external waterproof layer (5) is used to produce a water transport effect on the external anti-corrosion layer (4), thereby reducing the impact of long-term contact with water on the external anti-corrosion layer (4).

2. The corrosion-resistant polytetrafluoroethylene product according to claim 1, characterized in that: The inner anti-corrosion layer (2) comprises a first corrosion-resistant coating (201) and a second corrosion-resistant coating (202). The first corrosion-resistant coating (201) is coated on the surface of the product base (1). The material of the first corrosion-resistant coating (201) is polyurethane. Polyurethane has strong elasticity and good sealing performance, which improves the isolation effect between the product base (1) and the external environment. The material of the second corrosion-resistant coating (202) is polytetrafluoroethylene.

3. The corrosion-resistant polytetrafluoroethylene product according to claim 2, characterized in that: The buffer protection layer (3) comprises a first elastic layer (301) and a second elastic layer (302); the first elastic layer (301) is coated on the surface of the second corrosion-resistant coating (202); the material of the first elastic layer (301) is epoxy asphalt; the second elastic layer (302) is coated on the surface of the first elastic layer (301); the material of the second elastic layer (302) is styrene-butadiene rubber.

4. The corrosion-resistant polytetrafluoroethylene product according to claim 3, characterized in that: The outer anti-corrosion layer (4) comprises a buffer adhesion layer (401) and an electroplated corrosion-resistant layer (402), wherein the buffer adhesion layer (401) is coated on the surface of the second elastic layer (302), the buffer adhesion layer (401) is made of silicone rubber, and the electroplated corrosion-resistant layer (402) is a zinc-plated layer electroplated on the surface of the buffer adhesion layer (401).

5. The corrosion-resistant polytetrafluoroethylene product according to claim 4, characterized in that: The external waterproof layer (5) comprises a first waterproof coating layer (501) and a second waterproof coating layer (502), wherein the first waterproof coating layer (501) is made of polyurethane, and the second waterproof coating layer (502) is made of SBS modified asphalt. The first waterproof coating layer (501) and the second waterproof coating layer (502) are coated on the surface of the electroplated corrosion-resistant layer (402) to reduce contact between liquid and the electroplated corrosion-resistant layer (402).

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