Heat dissipation and water seepage prevention pearl wool
By setting up neopentyl glycol and pentaerythritol heat dissipation layers on the upper and lower surfaces of the pearl cotton substrate layer and adding superhydrophobic nanocoats, the lack of performance of traditional pearl cotton in high temperature and humid environments is solved, and better heat dissipation and waterproofing performance is achieved.
Patent Information
- Application Number
- CN202421410916.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-20
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2034-06-20
AI Technical Summary
Traditional pearl cotton has weak heat dissipation ability in high temperature environments and has a deterioration of waterproofing performance in humid environments, affecting its structural integrity and protective performance.
A structure is adopted that includes a pearl cotton substrate layer, a neopentyl glycol and pentaerythritol heat dissipation layer on the upper and lower surfaces, and a superhydrophobic nanocoating layer on the outside. The neopentyl glycol and pentaerythritol heat dissipation layers absorb heat through solid-solid phase change to reduce temperature, while the superhydrophobic nanocoating enhances waterproofing.
It significantly improves the heat dissipation efficiency of pearl cotton in high temperature environments, and maintains good waterproof and moisture-proof performance in humid environments, protecting internal products from moisture damage.
Smart Images
Figure CN222645542U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of packaging materials, in particular to a heat dissipation and water seepage prevention pearl cotton. Background Art
[0002] Pearl cotton, due to its lightness, strong cushioning and low cost, is widely used in packaging, construction, sports equipment and other fields. Pearl cotton is mainly made of polyethylene low-density resin and other materials through foaming molding. Its internal structure is composed of countless small bubbles, which gives it good impact resistance and cushioning properties. However, traditional pearl cotton also exposes some performance deficiencies during use, especially in heat dissipation and water seepage prevention.
[0003] In high temperature or continuous heating environment, the heat dissipation capacity of traditional pearl cotton is weak, which can easily cause the internal temperature to rise, affecting its physical properties and even causing deformation. This is particularly prominent in the packaging and transportation of electronic products, because these products generate heat during operation. If the heat is not dissipated in time, it may affect the performance of the product or cause damage. In addition, although pearl cotton has a certain degree of waterproofness, its waterproof performance often decreases significantly when it is continuously exposed to a humid environment or after contact with water. When moisture penetrates into the material, it will reduce its structural integrity and protective performance.
[0004] In order to solve the above problems, to improve the heat dissipation efficiency of pearl cotton in a high temperature environment, and at the same time enhance its anti-water seepage and moisture-proof performance in a humid environment, the present application provides a heat dissipation and anti-water seepage pearl cotton. Utility Model Content
[0005] The purpose of the utility model is to provide a pearl cotton with better heat dissipation and water-proof performance in view of the deficiencies in the prior art, which can improve the heat dissipation efficiency of the pearl cotton in a high temperature environment and enhance its water-proof and moisture-proof performance in a humid environment.
[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0007] A heat dissipation and water seepage prevention pearl cotton, comprising a pearl cotton substrate layer, a neopentyl glycol heat dissipation layer arranged on the upper surface of the pearl cotton substrate layer, a pentaerythritol heat dissipation layer arranged on the lower surface of the pearl cotton substrate layer, and super-hydrophobic nano coatings respectively arranged on the outer surfaces of the neopentyl glycol heat dissipation layer and the pentaerythritol heat dissipation layer, wherein the water drop contact angle of the super-hydrophobic nano coating is greater than 150°; the density of the pearl cotton substrate layer is 10-20 kg / m 3 , the porosity is 60%-80%.
[0008] In some embodiments according to the present invention, the super hydrophobic nano coating is a polydimethylsiloxane coating.
[0009] In some embodiments of the present invention, a first aluminum film layer is provided between the neopentyl glycol heat dissipation layer and the super-hydrophobic nano-coating layer, and a second aluminum film layer is provided between the pentaerythritol heat dissipation layer and the super-hydrophobic nano-coating layer.
[0010] In some embodiments of the present invention, a first graphene layer is further provided between the pearl cotton substrate layer and the neopentyl glycol heat dissipation layer, and a second graphene layer is further provided between the pearl cotton substrate layer and the pentaerythritol heat dissipation layer.
[0011] In some embodiments of the utility model, a first sponge sound-absorbing layer is provided between the pearl cotton substrate layer and the neopentyl glycol heat dissipation layer, and a second sponge sound-absorbing layer is provided between the pearl cotton substrate layer and the pentaerythritol heat dissipation layer; the interiors of the first sponge sound-absorbing layer and the second sponge sound-absorbing layer both have a wavy channel structure.
[0012] In some embodiments of the present invention, the thickness of the neopentyl glycol heat dissipation layer and the pentaerythritol heat dissipation layer are both 1-4 mm.
[0013] In some embodiments according to the present invention, the thickness of the super hydrophobic nano coating is 1 to 5 mm.
[0014] In some embodiments according to the utility model, the thickness of the pearl cotton substrate layer is 2 to 12 mm.
[0015] The utility model has the following beneficial effects: the utility model provides a heat dissipation and water seepage prevention pearl cotton, comprising a pearl cotton substrate layer, a neopentyl glycol heat dissipation layer arranged on the upper surface of the pearl cotton substrate layer, a pentaerythritol heat dissipation layer arranged on the lower surface of the pearl cotton substrate layer, and super-hydrophobic nano-coatings respectively arranged on the outer surfaces of the neopentyl glycol heat dissipation layer and the pentaerythritol heat dissipation layer, wherein the water drop contact angle of the super-hydrophobic nano-coating is greater than 150°; the density of the pearl cotton substrate layer is 10-20 kg / m 3 , the porosity is 60%-80%. Compared with the prior art, the utility model sets a neopentyl glycol heat dissipation layer and a pentaerythritol heat dissipation layer with different phase change temperatures on the upper and lower surfaces of the pearl cotton substrate layer. When the temperature of the surface of the packaged product reaches the phase transition temperature of the above-mentioned material, the above-mentioned material will undergo a solid-solid phase change to absorb heat, thereby reducing the surface temperature of the product, and effectively enhancing the heat dissipation capacity of the pearl cotton in a high temperature environment. The super-hydrophobic nano coating has a water droplet contact angle of more than 150°, which greatly enhances the waterproof and moisture-proof ability of the pearl cotton. The coating can effectively prevent moisture penetration and keep its interior dry even in extremely humid environments, protecting the internal products from moisture damage. In addition, the density of the pearl cotton substrate layer is set at 10-20kg / m 3The porosity is 60%-80%, which helps to enhance the heat dissipation and cushioning performance of the pearl cotton. The higher porosity is conducive to improving the air permeability and heat dissipation of the pearl cotton, and can also provide better impact absorption capacity. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic diagram of the structure of Example 1 of the present utility model.
[0017] In the figure: 1. Pearl cotton substrate layer; 2. Neopentyl glycol heat dissipation layer; 3. Pentaerythritol heat dissipation layer; 4. Super hydrophobic nano coating. DETAILED DESCRIPTION
[0018] In order to make the technical solution and advantages of the utility model clearer, the utility model and its beneficial effects will be further described in detail below in combination with specific implementation methods and drawings of the specification, but the implementation methods of the utility model are not limited thereto.
[0019] Example 1
[0020] like Figure 1 As shown, a heat dissipation and water seepage prevention pearl cotton provided in this embodiment comprises a pearl cotton substrate layer 1, a neopentyl glycol heat dissipation layer 2 arranged on the upper surface of the pearl cotton substrate layer 1, a pentaerythritol heat dissipation layer 3 arranged on the lower surface of the pearl cotton substrate layer 1, and a super-hydrophobic nano-coating 4 respectively arranged on the outer surfaces of the neopentyl glycol heat dissipation layer 2 and the pentaerythritol heat dissipation layer 3, wherein the water drop contact angle of the super-hydrophobic nano-coating 4 is greater than 150°; the density of the pearl cotton substrate layer 1 is 10-20 kg / m 3 , the porosity is 60%-80%; wherein the super-hydrophobic nano coating 4 is a polydimethylsiloxane coating.
[0021] In this embodiment, the thickness of the neopentyl glycol heat dissipation layer 2 and the pentaerythritol heat dissipation layer 3 are both 1-4 mm, preferably 2 mm; the thickness of the super hydrophobic nano coating 4 is 1-5 mm, preferably 3 mm; the thickness of the pearl cotton substrate layer 1 is 2-12 mm, preferably 9 mm. This thickness combination can balance the relationship between heat dissipation and material strength, ensuring that the pearl cotton achieves a good heat dissipation and water seepage prevention effect without adding too much weight.
[0022] In this embodiment, the layers can be formed into an integrated sheet structure by heat pressing bonding, spraying or plating processes known in the art.
[0023] The utility model sets a neopentyl glycol heat dissipation layer 2 and a pentaerythritol heat dissipation layer 3 with different phase change temperatures on the upper and lower surfaces of the pearl cotton substrate layer 1. When the temperature of the surface of the packaged product reaches the phase change temperature of the above materials, the above materials will undergo a solid-solid phase change to absorb heat, thereby reducing the surface temperature of the product and effectively enhancing the heat dissipation capacity of the pearl cotton in a high temperature environment. The super-hydrophobic nano coating 4 has a water drop contact angle of more than 150°, which greatly enhances the waterproof and moisture-proof capabilities of the pearl cotton. The coating can effectively prevent moisture penetration and keep its interior dry even in extremely humid environments, protecting the internal products from moisture damage. In addition, the density of the pearl cotton substrate layer 1 is set at 10-20kg / m 3 The porosity is 60%-80%, which helps to enhance the heat dissipation and cushioning performance of the pearl cotton. The higher porosity is conducive to improving the air permeability and heat dissipation of the pearl cotton, and can also provide better impact absorption capacity.
[0024] Example 2
[0025] Different from Example 1, a first aluminum film layer is further provided between the neopentyl glycol heat dissipation layer 2 and the super-hydrophobic nano-coating 4, and a second aluminum film layer is further provided between the pentaerythritol heat dissipation layer 3 and the super-hydrophobic nano-coating 4. The aluminum film can effectively prevent water vapor from penetrating, further improving the anti-water seepage performance of the pearl cotton.
[0026] The other structures are the same as those in Example 1 and will not be described in detail here.
[0027] Example 3
[0028] Different from Example 1, a first graphene layer is further provided between the pearl cotton substrate layer 1 and the neopentyl glycol heat dissipation layer 2, and a second graphene layer is further provided between the pearl cotton substrate layer 1 and the pentaerythritol heat dissipation layer 3. Graphene has excellent thermal conductivity, can quickly and evenly disperse heat, effectively avoid the formation of hot spots, and thus improve the overall heat dissipation effect of the pearl cotton.
[0029] The other structures are the same as those in Example 1 and will not be described in detail here.
[0030] Example 4
[0031] Different from Example 1, a first sponge sound-absorbing layer is further provided between the pearl cotton substrate layer 1 and the neopentyl glycol heat dissipation layer 2, and a second sponge sound-absorbing layer is further provided between the pearl cotton substrate layer 1 and the pentaerythritol heat dissipation layer 3; the first sponge sound-absorbing layer and the second sponge sound-absorbing layer both have a wavy channel structure inside. The sponge sound-absorbing layer not only improves the sound absorption and noise reduction performance of the pearl cotton, but the wavy channel structure inside it also helps to increase the air flow inside the pearl cotton, further improve the heat dissipation effect, and at the same time increase the cushioning property of the pearl cotton, thereby improving the protection performance of the product.
[0032] The other structures are the same as those in Example 1 and will not be described in detail here.
[0033] According to the disclosure and teaching of the above description, the technicians in the field of the utility model can also change and modify the above implementation. Therefore, the utility model is not limited to the above specific implementation, and any obvious improvement, replacement or modification made by the technicians in this field on the basis of the utility model belongs to the protection scope of the utility model. In addition, although some specific terms are used in this specification, these terms are only for the convenience of explanation and do not constitute any limitation to the utility model.
Claims
1. A heat dissipation and water seepage prevention pearl cotton, characterized by: The invention comprises an EPP substrate layer, a neopentyl glycol heat dissipation layer arranged on the upper surface of the EPP substrate layer, a pentaerythritol heat dissipation layer arranged on the lower surface of the EPP substrate layer, and super-hydrophobic nano-coatings respectively arranged on the outer surfaces of the neopentyl glycol heat dissipation layer and the pentaerythritol heat dissipation layer, wherein the water drop contact angle of the super-hydrophobic nano-coating is greater than 150°; the density of the EPP substrate layer is 10-20 kg / m 3 , the porosity is 60%-80%.
2. The heat dissipation and water seepage prevention pearl cotton according to claim 1, characterized in that: The super hydrophobic nano coating is a polydimethylsiloxane coating.
3. The heat dissipation and water seepage prevention pearl cotton according to claim 1, characterized in that: A first aluminum film layer is further arranged between the neopentyl glycol heat dissipation layer and the super-hydrophobic nano-coating layer, and a second aluminum film layer is further arranged between the pentaerythritol heat dissipation layer and the super-hydrophobic nano-coating layer.
4. The heat dissipation and water seepage prevention pearl cotton according to claim 1, characterized in that: A first graphene layer is further arranged between the pearl cotton substrate layer and the neopentyl glycol heat dissipation layer, and a second graphene layer is further arranged between the pearl cotton substrate layer and the pentaerythritol heat dissipation layer.
5. The heat dissipation and water seepage prevention pearl cotton according to claim 1, characterized in that: A first sponge sound-absorbing layer is provided between the pearl cotton substrate layer and the neopentyl glycol heat dissipation layer, and a second sponge sound-absorbing layer is provided between the pearl cotton substrate layer and the pentaerythritol heat dissipation layer; the first sponge sound-absorbing layer and the second sponge sound-absorbing layer both have a wavy channel structure inside.
6. The heat dissipation and water seepage prevention pearl cotton according to claim 1, characterized in that: The thickness of the neopentyl glycol heat dissipation layer and the pentaerythritol heat dissipation layer are both 1-4 mm.
7. The heat dissipation and water seepage prevention pearl cotton according to claim 1, characterized in that: The thickness of the super hydrophobic nano coating is 1 to 5 mm.
8. The heat dissipation and water seepage prevention pearl cotton according to claim 1, characterized in that: The thickness of the pearl cotton substrate layer is 2 to 12 mm.