Short fiber reinforced thermoplastic composite material structure
By introducing protective structures and fiber layers into short fiber reinforced thermoplastic composites, the problem of poor UV resistance was solved, and the material's UV resistance, softness and thermoplasticity were improved.
Patent Information
- Application Number
- CN202422708122.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-07
- Publication Date
- 2025-09-12
- Estimated Expiration
- 2034-11-07
AI Technical Summary
Existing short fiber reinforced thermoplastic composites have poor UV resistance and cannot meet the requirements of certain application scenarios.
A protective structure is adopted, including top protection, first absorption groove, bottom protection and second absorption groove, combined with fiber structure and composite structure, which enhances the anti-UV performance by reflecting, absorbing and scattering ultraviolet rays, and improves the softness and thermoplasticity of the material through fiber layers and composite layers.
It achieves good UV resistance, improves the practicality of the composite material, and at the same time enhances the softness and thermoplasticity of the material.
Smart Images
Figure CN223327083U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of composite materials, in particular to a short fiber reinforced thermoplastic composite material structure. Background Art
[0002] Short fiber reinforced thermoplastic composites are a type of material made from short fibers and a thermoplastic resin matrix through a composite process. They have excellent mechanical properties, processing properties, and recyclability. Common short fibers include glass fiber, carbon fiber, and aramid fiber, and thermoplastic resin matrices mainly include PA, PP, PBT, etc. This composite material is widely used in many fields due to its excellent performance characteristics. For example, in the aerospace field: used to manufacture aircraft interior parts, structural parts, etc., in the automotive industry: used to manufacture body parts, engine parts, etc., in the electronic products field: used to manufacture mobile phone cases, electronic components, etc., and in the construction field: used to manufacture building materials, pipes, etc.
[0003] This composite material has shown broad application prospects in many fields. With the continuous advancement of science and technology and continuous optimization of processes, the performance and application areas of this composite material will continue to expand and improve. Due to its wide application, good UV resistance is required in some application scenarios. However, the current UV resistance of this composite material is poor and often does not meet the required standards. Utility Model Content
[0004] The utility model aims to provide a short fiber reinforced thermoplastic composite material structure, so as to solve the defect of poor anti-ultraviolet effect of the existing composite materials.
[0005] In order to solve the above technical problems, the present utility model provides the following technical solutions: a short fiber reinforced thermoplastic composite material structure, including a protective structure;
[0006] The protective structure includes a top protection layer, a first absorption groove, a bottom protection layer and a second absorption groove. The bottom end of the top protection layer is adhered to the top end of the first special adhesive. The first absorption groove is provided inside the top protection layer. The bottom of the top protection layer is provided with a bottom protection layer, and the second absorption groove is provided inside the bottom protection layer.
[0007] The bottom end of the first special adhesive inside the protective structure is pasted with a fiber structure;
[0008] A composite structure is provided inside the fiber structure, and a second special glue is pasted on the bottom end of the fiber structure inside the protective structure.
[0009] Preferably, the top layer protection is distributed at equal intervals, the first absorption grooves are distributed at equal intervals, the bottom layer protection is distributed at equal intervals, and the second absorption grooves are distributed at equal intervals.
[0010] Preferably, the fiber structure includes a first fiber layer, a second fiber layer and a third fiber layer, the top of the first fiber layer is adhered to the bottom end of the first special glue, the bottom of the first fiber layer is provided with a second fiber layer, and the outside of the second fiber layer at the bottom of the first fiber layer is provided with a third fiber layer.
[0011] Preferably, the first fiber layer is a polyester fiber layer, the second fiber layer is a short fiber layer, and the second fiber layers are distributed at equal intervals.
[0012] Preferably, the second fiber layer and the third fiber layer are in a cross shape, the third fiber layer is distributed at equal intervals, and the third fiber layer is a short fiber layer.
[0013] Preferably, the composite structure includes a first composite layer, a breathable groove, a second composite layer and breathable holes, the first composite layer is fixed to the bottom end of the first fiber layer, the interior of the first composite layer is provided with a breathable groove, the bottom of the breathable groove is provided with a second composite layer, and the interior of the second composite layer is provided with a second composite layer.
[0014] Preferably, the second composite layer is a resin layer, and the air holes are distributed at equal intervals.
[0015] The utility model provides a short fiber reinforced thermoplastic composite material structure, which has the following advantages:
[0016] By providing a protective structure, the top layer of protection has good UV resistance, the first absorption groove has good UV absorption performance, the bottom layer of protection has good UV resistance, the second absorption groove has good UV absorption performance, and the first special glue and the fiber structure both have UV resistance, thereby realizing the UV resistance function of the device and improving the practicality of the composite material.
[0017] By providing a fiber structure, the first fiber layer is a synthetic fiber with high strength and elastic recovery ability, the second fiber layer and the third fiber layer are also called cut fibers, generally with a length of 35-150mm, with good elasticity and air permeability, and the first fiber layer, the second fiber layer and the third fiber layer all have good softness, so that the device has a soft function and the softness of the composite material is improved;
[0018] By providing a composite structure, the first composite layer has good stability, thermoplasticity and UV protection properties, the breathable groove enhances the air permeability of the first composite layer, the second composite layer is an amorphous solid with a slightly glossy surface, is insoluble in water, and does not absorb water and swell, and is divided into two major categories: natural resin and synthetic resin, and has the function of enhancing the thermoplasticity of the fiber structure, thus realizing the thermoplastic function of the device and improving the thermoplasticity of the composite material. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 This is a schematic diagram of the main cross-section of the present utility model;
[0020] Figure 2 It is a top view schematic diagram of the utility model;
[0021] Figure 3 This is a partial three-dimensional enlarged schematic diagram of the fiber structure of the utility model;
[0022] Figure 4 This is a three-dimensional schematic diagram of the composite structure cross section of the present utility model;
[0023] Figure 5 It is a three-dimensional schematic diagram of the protective structure of the utility model.
[0024] Explanation of the reference numerals in the figure: 1. Protective structure; 101. Top layer protection; 102. First absorption groove; 103. Bottom layer protection; 104. Second absorption groove; 2. First special glue; 3. Fiber structure; 301. First fiber layer; 302. Second fiber layer; 303. Third fiber layer; 4. Composite structure; 401. First composite layer; 402. Breathable groove; 403. Second composite layer; 404. Breathable hole; 5. Second special glue. DETAILED DESCRIPTION
[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0026] See also Figure 1-Figure 5 The utility model provides a short fiber reinforced thermoplastic composite material structure, including a protective structure 1.
[0027] Reference Figure 1 and Figure 5 As shown, the protective structure 1 includes a top layer of protection 101, a first absorption groove 102, a bottom layer of protection 103 and a second absorption groove 104. The bottom end of the top layer of protection 101 is adhered to the top of the first special glue 2. The first absorption groove 102 is arranged inside the top layer of protection 101, and the bottom of the top layer of protection 101 is provided with a bottom layer of protection 103. The second absorption groove 104 is arranged inside the bottom layer of protection 103. The top layer of protection 101 is distributed at equal intervals, the first absorption grooves 102 are distributed at equal intervals, the bottom layer of protection 103 are distributed at equal intervals, and the second absorption grooves 104 are distributed at equal intervals.
[0028] The ultraviolet rays that hit the surface of the top protection 101 are reflected, and the ultraviolet rays that hit the surface of the first absorption groove 102 are absorbed. Some of the ultraviolet rays are scattered from the gaps between the top protection 101 to the interior of the fiber structure 3. The fiber structure 3 also has ultraviolet protection properties. The remaining ultraviolet rays absorbed by the fiber structure 3 are scattered to the bottom protection 103 and then absorbed by the second absorption groove 104 again.
[0029] Reference Figure 1 and Figure 3 As shown, the bottom end of the first special glue 2 inside the protective structure 1 is pasted with a fiber structure 3, and the fiber structure 3 includes a first fiber layer 301, a second fiber layer 302 and a third fiber layer 303. The top of the first fiber layer 301 is pasted on the bottom end of the first special glue 2, and the bottom of the first fiber layer 301 is provided with a second fiber layer 302. The outside of the second fiber layer 302 at the bottom of the first fiber layer 301 is provided with a third fiber layer 303. The first fiber layer 301 is a polyester fiber layer, and the second fiber layer 302 is a short fiber layer. The second fiber layer 302 is distributed at equal intervals, and the second fiber layer 302 and the third fiber layer 303 are cross-shaped. The third fiber layer 303 is distributed at equal intervals, and the third fiber layer 303 is a short fiber layer. The bottom end of the fiber structure 3 inside the protective structure 1 is pasted with the second special glue 5.
[0030] The first fiber layer 301 is a synthetic fiber with high strength and elastic recovery ability. The second fiber layer 302 and the third fiber layer 303 are also called cut fibers, which are generally 35-150 mm in length and have good elasticity and air permeability. The first fiber layer 301, the second fiber layer 302 and the third fiber layer 303 all have good softness.
[0031] Reference Figure 1 and Figure 4 As shown, the fiber structure 3 is internally provided with a composite structure 4, and the composite structure 4 includes a first composite layer 401, a breathable groove 402, a second composite layer 403 and breathable holes 404. The first composite layer 401 is fixed to the bottom end of the first fiber layer 301, and the first composite layer 401 is internally provided with a breathable groove 402, and the bottom of the breathable groove 402 is provided with a second composite layer 403, and the second composite layer 403 is internally provided with a second composite layer 403. The second composite layer 403 is a resin layer, and the breathable holes 404 are distributed at equal intervals.
[0032] The first composite layer 401 has good stability, thermoplasticity and UV protection properties. The breathable groove 402 enhances the breathability of the first composite layer 401. The second composite layer 403 is an amorphous solid with a slightly glossy surface. It is insoluble in water and does not expand when it absorbs water. It is divided into two categories: natural resin and synthetic resin. The second composite layer 403 has a softening and melting temperature range and has a tendency to flow under the action of external force. It is mixed inside the fiber structure 3 to enhance the thermoplasticity of the fiber structure 3.
[0033] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A short fiber reinforced thermoplastic composite structure comprising a protective structure (1); Its characteristics are: The protective structure (1) comprises a top protective layer (101), a first absorption groove (102), a bottom protective layer (103) and a second absorption groove (104); the bottom end of the top protective layer (101) is adhered to the top end of the first special adhesive (2); the first absorption groove (102) is provided inside the top protective layer (101); the bottom of the top protective layer (101) is provided with a bottom protective layer (103); and the second absorption groove (104) is provided inside the bottom protective layer (103); The bottom end of the first special adhesive (2) inside the protective structure (1) is adhered with a fiber structure (3); The fiber structure (3) is provided with a composite structure (4) inside, and the bottom end of the fiber structure (3) inside the protective structure (1) is adhered with a second special glue (5).
2. The short fiber reinforced thermoplastic composite material structure according to claim 1, characterized in that: The top layer protection (101) is distributed at equal intervals, the first absorption grooves (102) are distributed at equal intervals, the bottom layer protection (103) is distributed at equal intervals, and the second absorption grooves (104) are distributed at equal intervals.
3. The short fiber reinforced thermoplastic composite material structure according to claim 1, characterized in that: The fiber structure (3) includes a first fiber layer (301), a second fiber layer (302) and a third fiber layer (303), the top of the first fiber layer (301) is adhered to the bottom of the first special glue (2), the bottom of the first fiber layer (301) is provided with the second fiber layer (302), and the outside of the second fiber layer (302) at the bottom of the first fiber layer (301) is provided with the third fiber layer (303).
4. The short fiber reinforced thermoplastic composite material structure according to claim 3, characterized in that: The first fiber layer (301) is a polyester fiber layer, the second fiber layer (302) is a short fiber layer, and the second fiber layers (302) are distributed at equal intervals.
5. The short fiber reinforced thermoplastic composite material structure according to claim 3, characterized in that: The second fiber layer (302) and the third fiber layer (303) are in a cross shape, the third fiber layer (303) is distributed at equal intervals, and the third fiber layer (303) is a short fiber layer.
6. The short fiber reinforced thermoplastic composite material structure according to claim 1, characterized in that: The composite structure (4) comprises a first composite layer (401), a ventilation groove (402), a second composite layer (403) and ventilation holes (404); the first composite layer (401) is fixed to the bottom end of the first fiber layer (301); the first composite layer (401) is provided with ventilation grooves (402) inside; the second composite layer (403) is provided at the bottom of the ventilation grooves (402); and the second composite layer (403) is provided inside the second composite layer (403).
7. The short fiber reinforced thermoplastic composite material structure according to claim 6, characterized in that: The second composite layer (403) is a resin layer, and the air holes (404) are distributed at equal intervals.