CN215882886U

CN215882886U - Fiber reinforced thermoplastic and thermosetting hybrid resin-based composite structure and product thereof

Info

Publication number: CN215882886U
Application number: CN202022986224.8U
Authority: CN
Inventors: 曾建林
Original assignee: Xiamen Chuanshengde New Material Technology Co ltd
Current assignee: Xiamen Chuanshengde New Material Technology Co ltd
Priority date: 2020-12-11
Filing date: 2020-12-11
Publication date: 2022-02-22
Anticipated expiration: 2030-12-11

Abstract

The utility model discloses a fiber reinforced thermoplastic and thermosetting hybrid resin-based composite structure and a product thereof, wherein the thermoplastic property of a thermoplastic base material is utilized, a mold suitable for the appearance of a required product is used for pre-forming and processing the thermoplastic base material into an appearance layer of the product, and the fiber reinforced composite structure and the product which have excellent rigidity, excellent toughness, excellent impact resistance, excellent puncture resistance and other high performances are obtained by combining the thermosetting base material. The final coating appearance of the product is finished on the thermoplastic sheet of the composite structural plate, the subsequent spraying process treatment adopted by most of the prior art is not needed, and the whole process flow is simpler, energy-saving and environment-friendly.

Description

Fiber reinforced thermoplastic and thermosetting hybrid resin-based composite structure and product thereof

Technical Field

The utility model relates to the technical field of fiber reinforced composite structures, in particular to a fiber reinforced thermoplastic and thermosetting hybrid resin matrix composite structure and a product thereof.

Background

The resin base material in most of the existing fiber reinforced resin matrix composite materials and products only has a single type of base material, namely a thermoplastic resin base material or a thermosetting resin base material, and the single thermoplastic resin matrix fiber reinforced composite materials and products have the main defects that the rigidity and the strength of the physical properties of the thermoplastic base material are poor, and the thermoplastic resin matrix fiber reinforced composite materials and products are immature in product forming process and cannot be popularized and used in a large range; the main disadvantages of the single thermosetting resin-based fiber reinforced composite material and the product are that the thermosetting base material has poor toughness and is easy to break, in addition, although the molding and processing technology of the product is mature and widely used at present, the surface appearance of the molded blank cannot achieve the appearance of gloss, smoothness, fullness and stability like the product molded by thermoplastic plastics, the thermosetting resin-based fiber reinforced composite material and the product are generally subjected to a series of post-spraying processing after the molding of the blank of the product is finished, the environmental protection pressure is large, and the environment is not friendly. The thermosetting resin (TS) based fiber reinforced material and product have the inherent disadvantages of brittleness and high puncture resistance. In addition, the fiber reinforced material and the product adopting the thermosetting resin (TS) base are easy to generate surface appearance defects, and for the product with high surface appearance requirements, redundant subsequent spraying processing needs to be added, so that the burden of environmental protection is increased.

Thermoplastic resin (TP) based fiber reinforced materials and products are used because the thermoplastic substrate has poor rigidity and poor impact resistance, and the design of structures requiring different physical properties for different areas of the product is not easy to realize. The fiber reinforced material based on thermoplastic resin (TP) only supports products with simple appearance requirements, and the thermoplastic resin is not easy to fully impregnate and wrap fibers.

In view of the above-mentioned disadvantages and shortcomings of the prior art fiber-reinforced resin-based composite materials, the present invention is directed to a fiber-reinforced hybrid resin composite material and product, which can integrate good strength, good rigidity and good toughness, while giving the molded product a beautiful appearance that can be directly used (without post-stage spraying).

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provide a fiber reinforced thermoplastic and thermosetting hybrid resin-based composite structure which is light, high in strength and high in toughness and does not need subsequent appearance spraying operation, and a product thereof.

In order to achieve the above purpose, the solution of the utility model is:

a fiber reinforced thermoplastic and thermosetting hybrid resin-based composite structure comprises at least one TP plastic layer or TP fiber layer and at least one TS fiber layer, wherein the layers are compatible and bonded through a bridging agent.

Further, when two or more layers are provided for either one or both of the TP plastic layer or the TP fiber layer and the TS fiber layer, the TS fiber layer and the TP plastic layer or the TP fiber layer are alternately arranged.

Furthermore, when the surface of the composite structure has appearance requirements, the surface layer is a TP plastic layer or a TP fiber layer.

A product of any one of a shell, a plate, a sheet, a tube, and a column using a fiber reinforced thermoplastic and thermosetting hybrid resin based composite structure, comprising: at least one TP plastic layer or TP fiber layer and at least one TS fiber layer, wherein the layers are compatible and bonded through a bridging agent.

Further, any one of the shell, the plate, the sheet body, the tubular body and the columnar body is any one of products or accessories of machinery, sports equipment, performance equipment, safety protection equipment and electronic products.

After the scheme is adopted, the utility model has the following beneficial effects:

the thermoplastic resin base of the utility model can be an independent thermoplastic resin layer, or the thermoplastic resin and the fiber are combined and impregnated in advance, the appearance layer of the product is formed and processed in advance by using a mould suitable for the appearance of the required product by utilizing the thermoplastic property of the thermoplastic base material (if the inner wall layer is required, the thermoplastic base material can also be arranged at the innermost layer, the thermoplastic base material can also be arranged at any one layer or any staggered multiple layers in the product, and the mould of the related layer is correspondingly adjusted according to the variation method of the dimension, the utility model can obtain the fiber reinforced composite structure and the product which have excellent rigidity and toughness, excellent impact resistance, excellent puncture resistance and other high performances according to different product requirements by different laminated designs (such as TP layer + TS layer + TP layer + … …, the utility model has another important effect that the final coating appearance of the product is finished on the TP or TP fiber layer of the composite structure plate, the subsequent spraying process treatment which is adopted at present mostly is not needed, and the whole process flow is simpler, energy-saving and environment-friendly.

Drawings

Fig. 1 is a schematic view of a structural embodiment of a fiber reinforced thermoplastic and thermosetting hybrid resin-based composite structure according to the present invention.

Fig. 2 is a schematic diagram of a second structural embodiment of the fiber reinforced thermoplastic and thermosetting hybrid resin-based composite structure of the present invention.

FIG. 3 is a flow chart of the manufacturing process of the present invention.

Detailed Description

In order to further explain the technical solution of the present invention, the present invention is explained in detail by the following specific examples.

As shown in fig. 1 and fig. 2, the present invention will be described in detail by the following embodiments in order to further explain the technical solution of the present invention.

Referring to fig. 1 and 2, the present invention discloses a fiber reinforced thermoplastic and thermosetting hybrid resin-based composite structure, wherein fig. 1 shows an embodiment of the present invention, the fiber reinforced thermoplastic and thermosetting hybrid resin-based composite structure is a two-layer structure comprising a TP plastic layer or TP fiber layer 1 and a TS fiber layer 2, and the TP plastic layer or TP fiber layer 1 and the TS fiber layer 2 are compatible and bonded by a bridging agent.

Fig. 2 shows another embodiment of the present invention, the fiber reinforced thermoplastic and thermosetting hybrid resin-based composite structure is a three-layer structure, which includes two TP plastic layers or TP fiber layers 1 and one TS fiber layer 2, the two TP plastic layers or TP fiber layers are respectively the inner surface and the outer surface, that is, the two TP plastic layers or TP fiber layers sandwich one TS fiber layer, and the TP plastic layers or TP fiber layers 1 and the TS fiber layer 2 are compatible and bonded by a bridging agent. Three layer construction forms sandwich layer formula or hamburger formula composite bed, and three layer construction also can adopt the alternate structure of two-layer TS fibrous layer and a layer TP plastic layer or TP fibrous layer, including outer layer respectively for two-layer TS fibrous layer, a layer TP plastic layer or TP fibrous layer in the centre (mainly see the specific demand of product), in addition, can also adopt four layers, five layers, six layers etc. wherein the outward appearance superficial layer adopts TP plastic layer or TP fibrous layer most easily, and non-outward appearance layer designs and adopts according to the functional need.

The fiber reinforced thermoplastic and thermosetting hybrid resin matrix composite structure combines the respective advantages of the TS material and the TP material, integrates good strength, good rigidity and good toughness, and endows the molded product with a beautiful appearance which can be directly used (does not need post-spraying processing). The TS and TP base materials are compatible and sticky through the bridging agent, and then corresponding layering design is carried out according to the requirements of products to obtain the composite material and the product which are' rigid and flexible, excellent in comprehensive performance and excellent in appearance, and simultaneously give consideration to environmental protection benefits. In addition, the density of the TP base is smaller than that of the TS base (the density of the TS is more than 1.6g/l, and the density of the TP is within 1.2 g/l), so that materials and products which are lighter than the current TS composite materials can be obtained by the composite addition of the TP base.

The fiber reinforced thermoplastic and thermosetting hybrid resin-based composite structure can be used for producing various plate materials, shells or tubes/columns and other products, such as various mechanical and electronic product ornaments and functional pieces (such as various vehicle ornaments and functional pieces, electronic product ornaments and functional pieces such as mobile phones, computers and the like), composite sports equipment/appliances (such as various scooters, wheelers, various sports performance equipment/appliances, tubes/rods and the like), safety protector materials/appliances (such as helmets, shields, sports and protective equipment operation and the like), various shells (such as various special or commercial box shells and the like) and other products.

As shown in fig. 3, the present invention also discloses a method for preparing a fiber reinforced thermoplastic resin-based and thermosetting fiber-based composite structure, which comprises the following steps:

step A: pretreating the surface of the TP plastic layer or the TP fiber layer;

pre-prepared TP plastic layer or TP fiber layer (pre-prepared TP plastic layer or TP fiber layer can be pre-printed with various needed patterns according to product design requirements, the TP plastic layer or TP fiber layer can be transparent or non-transparent, can be single plastic, such as PC/ABS/PS/PE, etc., also can be multiple composite plastic alloys, such as PC + ABS, etc., or TP and fiber yarn or fiber cloth are firstly fused into TP fiber layer), surface cleaning or activating and exterior decoration treatment (such as plasma surface cleaning and activating treatment, and appearance pattern decoration treatment, of course, for some special materials or requirements, also can not be carried out), then corresponding process is adopted on the treated surface in time, or a bridging agent layer is brushed or sprayed on, the bridging agent layer is used for the purpose of bonding the TP plastic layer or TP fiber layer and TS fiber layer (for special TP and TS can also be omitted) . The bridging agent is selected according to the surface activity (physical and chemical activity) conditions of TP and TS, and even a glue layer material which is compatible with both TP and TS can be adopted.

The TP plastic layer or the TP fiber layer can be an appearance layer, or an inner layer and an intermediate layer, the surface pretreatment is carried out on the corresponding surface, and if the TP plastic layer or the TP fiber layer is processed by injection molding, the surface pretreatment is preferably carried out after the injection molding.

The thickness of each TP layer can be selected within 0.15-3 mm according to the product performance requirements, and can exceed the range of special requirements (for example, when a thicker glue layer is adopted for bonding, the thickness can exceed the range).

And B: pre-manufacturing a TP plastic layer or TP fiber layer product in a molding manner;

and carrying out in-mold hot plasticizing molding on the TP plastic layer or the TP fiber layer subjected to surface pretreatment to prepare the TP plastic layer or the TP fiber layer, wherein the temperature and time of hot plasticizing molding are determined according to the melting point, the softening point, the thickness and other comprehensive designs of the material, and the mold is designed and processed according to different product appearances, properties and processing requirements.

And C: preparing a TS fiber layer, which comprises the following steps:

step a, preparing required TS resin (such as epoxy resin, vinyl resin and the like) according to requirements for standby;

b, impregnating the fiber yarn or the fiber cloth of the required type with the prepared TS resin according to the performance requirement, so that the fibers in the fiber yarn or the fiber cloth are fully wrapped by the TS resin to prepare a TS fiber pre-impregnated material for standby, wherein the content of the TS resin is between 20 and 50 percent;

and c, sequentially layering and laminating the TS fibers containing the prepreg according to the product performance requirement to form a TS fiber layer, and placing the prefabricated TP layer in the inner layer or the middle corresponding layer if the inner layer or the middle layer is required.

Step D: the TP plastic layer or the TP fiber layer is overlapped with the TS fiber layer; and (3) superposing and combining the prepared TP plastic layer or TP fiber layer and TS fiber layer according to the design requirement.

Step E: forming a product; and (3) placing the well-overlapped TP plastic layer or TP fiber layer and TS fiber layer into a mould to be heated and pressurized for forming, wherein the temperature can be within 280 ℃ according to the material property, and the pressurization can be carried out by adopting modes of mould pressing, hollow bag pressing, vacuum pumping or a vacuum kettle and the like.

Step F: trimming (trimming, hole processing and finishing) products; and finishing, trimming, adhering and other post-processing operations according to the product setting and requirements.

Step G: and (4) assembling the product exterior trim and the finished product, and performing related exterior trim processing and finished product assembling processing according to the product setting and requirements.

The above embodiments and drawings are not intended to limit the form and style of the present invention, and any suitable changes or modifications thereof by those skilled in the art should be considered as not departing from the scope of the present invention.

Disclosed is a fiber reinforced thermoplastic and thermosetting hybrid resin-based composite structure, wherein FIG. 1 shows an embodiment of the present invention, the fiber reinforced thermoplastic and thermosetting hybrid resin-based composite structure is a double-layer structure, which comprises a TP plastic layer or TP fiber layer 1 and a TS fiber layer 2, the TP plastic layer or TP fiber layer 1 and TS fiber layer 2 are compatible and bonded by a bridging agent.

Claims

1. A fiber reinforced thermoplastic and thermosetting hybrid resin matrix composite structure is characterized by comprising at least one TP plastic layer or TP fiber layer and at least one TS fiber layer, wherein the layers are compatible and bonded through a bridging agent;

when two or more layers are simultaneously arranged on any one or two of the TP plastic layer or the TP fiber layer and the TS fiber layer, the TS fiber layer and the TP plastic layer or the TP fiber layer are alternately arranged.

2. A fiber reinforced thermoplastic and thermoset hybrid resin based composite structure according to claim 1, wherein: when the surface of the composite structure has appearance requirements, the surface layer is a TP plastic layer or a TP fiber layer.

3. A product of any one of a shell, a plate, a sheet, a tube, and a column using a fiber reinforced thermoplastic and thermosetting hybrid resin based composite structure, comprising: at least one TP plastic layer or TP fiber layer and at least one TS fiber layer, wherein the layers are compatible and bonded through a bridging agent.

4. Any one of a shell, a plate, a sheet, a tube, and a column using a fiber reinforced thermoplastic and thermosetting hybrid resin based composite structure according to claim 3, wherein: any one of the shell, the plate, the sheet body, the tubular body and the columnar body is any one of products or accessories of machinery, sports equipment, performance equipment, safety protection equipment and electronic products.