Preparation method of thermoplastic composite material micro-hyperbaric oxygen chamber body

Abstract

The invention discloses a thermoplastic composite material micro-hyperbaric oxygen chamber body preparation method which comprises the following steps: preparing a continuous fiber reinforced thermoplastic composite material, cutting the continuous fiber reinforced thermoplastic composite material to obtain a required material block, heating the cut material block to 180-250 DEG C through a heating device, carrying out heat preservation for 2-3 hours, and cooling to room temperature to obtain the thermoplastic composite material micro-hyperbaric oxygen chamber body. The material blocks form a preform substrate layer; spraying a liquid adhesive on the surface of the non-woven fabric or covering the non-woven fabric with a solid adhesive film; the obtained non-woven fabric with the glue and the prefabricated body are subjected to hot pressing and laminating; and adhering the styrene polymer and the fluoropolymer on the non-woven fabric which is laminated on the substrate layer through hot pressing to obtain the two-layer composite material. According to the invention, the mechanical property of the composite material is improved, the non-woven fabric layer is added, the non-woven fabric can be directly and well bonded with the thermoplastic material during injection molding, and the layers of the obtained composite material are firmly and stably laminated, so that the hyperbaric oxygen chamber has the advantages of high strength, high tear and small product deformation.

Description

Technical Field

[0001] The invention relates to the technical field of composite materials, in particular to a method for preparing a micro-hyperbaric oxygen chamber body made of thermoplastic composite materials. Background Art

[0002] As people pay more attention to their health, hyperbaric oxygen chambers have begun to be promoted and applied to provide people with more comprehensive health care effects. Hyperbaric oxygen chambers can provide a high-concentration oxygen environment. By inhaling high-concentration oxygen, the blood oxygen content can be increased, the metabolism of body cells can be promoted, and the energy generation and utilization efficiency can be improved.

[0003] Hyperbaric oxygen chambers are of great significance for improving body functions, enhancing immunity and restoring health. They can help people improve sleep quality, relieve sleep problems and provide a better resting environment. At the same time, hyperbaric oxygen chambers can also reduce fatigue and relieve stress, and help people restore energy and vitality by relaxing the body and mind and relieving stress. In addition, hyperbaric oxygen chambers can also help promote wound healing. Inhalation of high-concentration oxygen can increase the oxygen content in the blood, improve the oxygen supply level of the wound, and accelerate the wound healing process. It can also promote the growth and repair of red blood cells and accelerate the tissue repair and regeneration process.

[0004] Traditional hyperbaric oxygen chambers use steel or aluminum to make sealed cabins, and provide high-concentration oxygen therapy by increasing the air pressure inside the cabin. However, these cabins are made of steel, aluminum, alloys and other materials, which have disadvantages such as heavy weight, large volume, high manufacturing cost and high maintenance cost. Summary of the invention

[0005] The object of the present invention is to provide a method for preparing a thermoplastic composite micro-hyperbaric oxygen chamber body to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a method for preparing a thermoplastic composite micro-hyperbaric oxygen chamber body, comprising the following steps:

[0007] S1. preparing a continuous fiber reinforced thermoplastic composite material, cutting the continuous fiber reinforced thermoplastic composite material into required blocks, heating the cut blocks by a heating device to 180° C.-250° C., and forming a preform substrate layer with the blocks;

[0008] S2. Spraying liquid adhesive on the surface of non-woven fabric or coating the non-woven fabric with solid adhesive film;

[0009] S3, hot pressing and laminating the obtained adhesive-bearing nonwoven fabric with the preform;

[0010] S4, gluing a styrene polymer and a fluoropolymer onto the non-woven fabric laminated on the substrate layer by heat pressing to obtain a two-layer composite material;

[0011] S5, spraying a liquid adhesive on the second layer of the composite material, and laminating the reinforcement fibers with the liquid adhesive to obtain a multilayer composite material;

[0012] S6. The obtained multilayer composite material is baked and softened in an oven, and the baked multilayer composite material is quickly transferred to a mold, and the mold is quickly closed by a molding machine to obtain a micro-hyperbaric oxygen chamber body of a thermoplastic composite material.

[0013] Preferably, the liquid adhesive preparation process is as follows:

[0014] Mix 80 parts of PU resin, 5-6 parts of bridging agent and 5-6 parts of diluent evenly, and control the viscosity to 60,000-90,000 cps to obtain PU adhesive;

[0015] The diluent is a mixture of butanone and ethyl acetate in a weight ratio of 6:4.

[0016] Preferably, the bridging agent is a mixture of TDI and MDI.

[0017] Preferably, the two-layer composite material consists of 5 to 60 weight percent of fluoropolymer and 40 to 95 weight percent of styrene polymer.

[0018] Preferably, the fluoropolymer is a homopolymer of vinylidene fluoride, or a copolymer containing from 70 to less than 100 weight percent of vinylidene fluoride monomer units.

[0019] Preferably, the reinforcement fibers include one or more of carbon fibers, glass fibers, hemp fibers and basalt fibers.

[0020] Preferably, the nonwoven fabric is produced from polyester fibers or cellulose fibers by needle punching.

[0021] Preferably, the styrenic polymer is selected from the group consisting of polystyrene, high impact polystyrene (HIPS), acrylonitrile-butadiene-styrene (ABS) copolymers, acrylonitrile-styrene-acrylate (ASA) copolymers, styrene acrylonitrile (SAN) copolymers, methacrylate-acrylonitrile-butadiene-styrene (MABS) copolymers, styrene-butadiene copolymers (SB), styrene-butadiene-styrene block (SBS) copolymers and their partially or fully hydrogenated derivatives, styrene-isoprene copolymers, styrene-isoprene-styrene (SIS) block copolymers and their partially or fully hydrogenated derivatives and mixtures thereof.

[0022] Preferably, the molding pressure of the hot pressing molding machine is 1 to 10 MPa, the molding temperature is 130 to 160° C., and the molding time is 1 to 5 minutes.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] By using multi-layer composite materials, the mechanical properties of the composite materials are improved. By adding a non-woven fabric layer, the non-woven fabric can directly bond well with the thermoplastic material during injection molding. The layers of the obtained composite materials are firmly and stably laminated, making the hyperbaric oxygen chamber have the advantages of high strength, high tearing and small product deformation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the process of the present invention. DETAILED DESCRIPTION

[0026] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0027] See also Figure 1 The present invention provides a technical solution: a method for preparing a thermoplastic composite micro-hyperbaric oxygen chamber body, comprising the following steps:

[0028] S1. preparing a continuous fiber reinforced thermoplastic composite material, cutting the continuous fiber reinforced thermoplastic composite material into required blocks, heating the cut blocks by a heating device to 180° C.-250° C., and forming a preform substrate layer with the blocks;

[0029] S2. Spraying liquid adhesive on the surface of non-woven fabric or coating the non-woven fabric with solid adhesive film;

[0030] S3, hot pressing and laminating the obtained adhesive-bearing nonwoven fabric with the preform;

[0031] S4, gluing a styrene polymer and a fluoropolymer onto the non-woven fabric laminated on the substrate layer by heat pressing to obtain a two-layer composite material;

[0032] S5, spraying a liquid adhesive on the second layer of the composite material, and laminating the reinforcement fibers with the liquid adhesive to obtain a multilayer composite material;

[0033] S6. The obtained multilayer composite material is baked and softened in an oven, and the baked multilayer composite material is quickly transferred to a mold, and the mold is quickly closed by a molding machine to obtain a micro-hyperbaric oxygen chamber body of a thermoplastic composite material.

[0034] In the present invention, the preparation process of the liquid adhesive is as follows:

[0035] Mix 80 parts of PU resin, 5-6 parts of bridging agent and 5-6 parts of diluent evenly, and control the viscosity to 60,000-90,000 cps to obtain PU adhesive;

[0036] The diluent is a mixture of butanone and ethyl acetate in a weight ratio of 6:4.

[0037] In the present invention, the bridging agent is a mixture of TDI and MDI.

[0038] In the present invention, the two-layer composite material is composed of 5 to 60 weight percent of fluoropolymer and 40 to 95 weight percent of styrene polymer.

[0039] In the present invention, the fluoropolymer is a homopolymer of vinylidene fluoride, or a copolymer containing from 70 to less than 100 weight percent of vinylidene fluoride monomer units.

[0040] In the present invention, the reinforcement fibers include one or more of carbon fibers, glass fibers, hemp fibers and basalt fibers.

[0041] In the present invention, the nonwoven fabric is produced by needle punching polyester fibers or cellulose fibers.

[0042] In the present invention, the styrene polymer is a group consisting of polystyrene, high impact polystyrene (HIPS), acrylonitrile-butadiene-styrene (ABS) copolymers, acrylonitrile-styrene-acrylate (ASA) copolymers, styrene acrylonitrile (SAN) copolymers, methacrylate-acrylonitrile-butadiene-styrene (MABS) copolymers, styrene-butadiene copolymers (SB), styrene-butadiene-styrene block (SBS) copolymers and their partially or fully hydrogenated derivatives, styrene-isoprene copolymers, styrene-isoprene-styrene (SIS) block copolymers and their partially or fully hydrogenated derivatives and mixtures thereof.

[0043] In the present invention, the molding pressure of the hot pressing molding machine is 1-10 MPa, the molding temperature is 130-160° C., and the molding time is 1-5 minutes.

[0044] The present invention comprises the following steps: preparing a continuous fiber reinforced thermoplastic composite material, cutting the continuous fiber reinforced thermoplastic composite material to obtain required blocks, heating the cut blocks to 180°C-250°C by a heating device, and forming a preform substrate layer by the blocks; spraying a liquid adhesive on the surface of a non-woven fabric or laminating the non-woven fabric with a solid adhesive film; hot-pressing and laminating the obtained non-woven fabric with adhesive with the preform; laminating a styrene polymer and a fluoropolymer on the non-woven fabric hot-pressed on the substrate layer to obtain a two-layer composite material; spraying a liquid adhesive on the two-layer composite material, and laminating the reinforcement fibers with the liquid adhesive to obtain a multi-layer composite material; baking and softening the obtained multi-layer composite material in an oven, quickly conveying the baked multi-layer composite material to a mold, and quickly pressing and closing the mold by a molding press to obtain a micro-hyperbaric oxygen chamber body of the thermoplastic composite material.

[0045] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in the field. Although the embodiments of the present invention have been shown and described, it is understood by ordinary technicians in the field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A method for preparing a thermoplastic composite micro-hyperbaric oxygen chamber, characterized in that: The steps include: S1. preparing a continuous fiber reinforced thermoplastic composite material, cutting the continuous fiber reinforced thermoplastic composite material into required blocks, heating the cut blocks by a heating device to 180° C.-250° C., and forming a preform substrate layer with the blocks; S2. Spraying liquid adhesive on the surface of non-woven fabric or coating the non-woven fabric with solid adhesive film; S3, hot pressing and laminating the obtained adhesive-bearing nonwoven fabric with the preform; S4, gluing a styrene polymer and a fluoropolymer onto the non-woven fabric laminated on the substrate layer by heat pressing to obtain a two-layer composite material; S5, spraying a liquid adhesive on the second layer of the composite material, and laminating the reinforcement fibers with the liquid adhesive to obtain a multilayer composite material; S6. The obtained multilayer composite material is baked and softened in an oven, and the baked multilayer composite material is quickly transferred to a mold, and the mold is quickly closed by a molding machine to obtain a micro-hyperbaric oxygen chamber body of a thermoplastic composite material.

2. The method for preparing a thermoplastic composite micro-hyperbaric oxygen chamber according to claim 1, characterized in that: The liquid adhesive preparation process is as follows: Mix 80 parts of PU resin, 5-6 parts of bridging agent and 5-6 parts of diluent evenly, and control the viscosity to 60,000-90,000 cps to obtain PU adhesive; The diluent is a mixture of butanone and ethyl acetate in a weight ratio of 6:

4.

3. The method for preparing a thermoplastic composite micro-hyperbaric oxygen chamber according to claim 1, characterized in that: The bridging agent is a mixture of TDI and MDI.

4. The method for preparing a thermoplastic composite micro-hyperbaric oxygen chamber according to claim 1, characterized in that: The two-layer composite material consists of 5 to 60 weight percent of fluoropolymer and 40 to 95 weight percent of styrene polymer.

5. The method for preparing a thermoplastic composite micro-hyperbaric oxygen chamber according to claim 1, characterized in that: The fluoropolymer is a homopolymer of vinylidene fluoride, or a copolymer containing from 70 to less than 100 weight percent of vinylidene fluoride monomer units.

6. The method for preparing a thermoplastic composite micro-hyperbaric oxygen chamber according to claim 1, characterized in that: The reinforcement fibers include one or more of carbon fibers, glass fibers, hemp fibers and basalt fibers.

7. The method for preparing a thermoplastic composite micro-hyperbaric oxygen chamber according to claim 1, characterized in that: The nonwoven fabric is produced from polyester fibers or cellulose fibers by needle punching.

8. The method for preparing a thermoplastic composite micro-hyperbaric oxygen chamber according to claim 1, characterized in that: The styrenic polymers are selected from the group consisting of polystyrene, high impact polystyrene (HIPS), acrylonitrile-butadiene-styrene (ABS) copolymers, acrylonitrile-styrene-acrylate (ASA) copolymers, styrene acrylonitrile (SAN) copolymers, methacrylate-acrylonitrile-butadiene-styrene (MABS) copolymers, styrene-butadiene copolymers (SB), styrene-butadiene-styrene block (SBS) copolymers and their partially or fully hydrogenated derivatives, styrene-isoprene copolymers, styrene-isoprene-styrene (SIS) block copolymers and their partially or fully hydrogenated derivatives and mixtures thereof.

9. The method for preparing a thermoplastic composite micro-hyperbaric oxygen chamber according to claim 1, characterized in that: The molding pressure of the hot pressing molding machine is 1-10 MPa, the molding temperature is 130-160° C., and the molding time is 1-5 minutes.

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