High-hardness PVC material

Abstract

The invention provides a high-hardness PVC material which comprises a PVC hard base material, the outer surface of the PVC hard base material is wrapped with a carbon fiber modified ceramic soft film, a metal rubber elastic layer and non-Newtonian fluid buffer colloid are wrapped in the PVC hard base material, and a plurality of high-strength hard reinforcing ribs are embedded in the PVC hard base material. According to the PVC material, the internal structure is modified and optimized, metal rubber and non-Newtonian fluid buffer colloid with good impact resistance and damping and buffering effects are introduced for embedding, the structure of a conventional PVC material is internally modified, the performance of the PVC material is improved, the outer surface of the PVC material is coated with a carbon fiber modified soft ceramic film, the high rigidity and corrosion resistance of the PVC material are improved, and the service life of the PVC material is prolonged. The PVC material of the inner layer is protected from being damaged by external force, the honeycomb supporting shell and the double-component sound-absorbing cotton fiber column are introduced into the PVC material, the PVC material is further reinforced, the strength of the PVC material is greatly improved, and the service life of the PVC material is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of PVC materials, and particularly relates to a PVC material with high hardness. Background Art

[0002] PVC (polyvinyl chloride) is a plastic material with excellent comprehensive properties and plays an important role in various fields of industrial production and daily life; rubber materials such as nitrile rubber have the advantages of high wear resistance, good heat resistance, and strong adhesion. Using nitrile rubber to toughen and modify materials is a research hotspot. However, the compatibility between nitrile rubber and polyvinyl chloride is poor, so a suitable compatibilizer needs to be added.

[0003] The thermal stability of polyvinyl chloride is poor. At high temperatures, it thermally decomposes to produce free radicals and hydrogen chloride, which will cause oxidation decomposition and aging of polyvinyl chloride. Adding heat stabilizers, anti-aging agents, etc. to polyvinyl chloride can effectively improve the anti-aging and other properties of polyvinyl chloride.

[0004] Hindered phenol antioxidants are widely used in polymer materials such as polyvinyl chloride. They can capture free radicals in oxidation reactions and inhibit the free radical chain reaction during the oxidation process of materials, playing a good antioxidant role. Rare earth stabilizers are a new type of stabilizer. The rare earth elements therein can react with hydrogen chloride, thereby inhibiting the thermal decomposition phenomenon of polyvinyl chloride and improving the thermal stability and anti-aging properties of polyvinyl chloride.

[0005] The hardness of general PVC materials is difficult to meet the actual requirements because there is no other strengthening structure inside. And due to the organic nature of PVC materials themselves, it is difficult to have high strength and stiffness properties. Only by modifying PVC materials can PVC materials that meet the actual requirements be developed. Summary of the Invention

[0006] Aiming at the deficiencies of the above-mentioned existing technologies, the main purpose of the present invention is to provide a PVC material with high hardness. The PVC material is modified and optimized through internal structure modification. Metal rubber and non-Newtonian fluid buffer colloid with good impact resistance and shock absorption and buffering effects are introduced for embedding, and the structure of conventional PVC materials is modified from the inside to improve the performance of PVC materials. By coating a carbon fiber-modified soft porcelain film on the outer surface of the PVC material, the strength and stiffness and corrosion resistance of the PVC material are greatly improved, which is beneficial to protecting the inner PVC material from external damage. By introducing a honeycomb support shell and a two-component sound-absorbing cotton fiber column inside the PVC material, further reinforcement of the PVC material is achieved, greatly improving the strength of the PVC material and extending the service life of the PVC material.

[0007] The technical solution adopted to achieve the purpose of the present invention is: A high-hardness PVC material, including a PVC rigid substrate, is wrapped with a carbon fiber-modified ceramic soft film on its outer surface, and a metal rubber elastic layer and a non-Newtonian fluid buffer colloid are wrapped inside the PVC rigid substrate; several high-strength and rigid reinforcing ribs are embedded inside the PVC rigid substrate, and the high-strength and rigid reinforcing ribs include a reinforcing rib honeycomb support shell wrapped on the outer surface, and a two-component sound-absorbing cotton fiber column is wrapped inside the reinforcing rib honeycomb support shell.

[0008] Preferably, the PVC rigid substrate includes the following components by weight percentage: chitin and carbon fiber double-modified high molecular weight polyvinyl chloride waste 30-50%, polydopamine-modified organosilicon elastomer 20-40%, polysiloxane and polystyrene double-modified polyoxydimethylbenzene 10-30%, organic solvent 20-30%, chitosan hydrochloride 1-3%, organic rare earth 2-8%, silica aerogel 1-5%, accelerator 0.5-1.5%, dispersant 0.3-0.6%, curing agent 0.2-0.4%, antioxidant 0.2-0.3%.

[0009] Preferably, the non-Newtonian fluid buffer colloid includes the following components by weight percentage: chitosan quaternary ammonium salt-modified concentrated latex 10-15%, polyacrylamide resin solution 15-40%, Fe(OH) 3 Colloid 5-30%, nano-ferromagnetic matrix-modified gelatin 5-25%, polydopamine-modified celluloid glue solution 5-15%, artificial plasma 5-10%, magnetic powder 10-30%.

[0010] Preferably, the two-component sound-absorbing cotton fiber column includes the following components by weight percentage: chitosan hydrochloride-modified polyethylene terephthalate 32.5-63.5%, polysiloxane and polystyrene double-modified high-toughness radiation-proof silicone rubber 10.5-45.5%, polydopamine-modified cellulose acetate resin 8.0-35.5%, organic rare earth 3.5-8.5%, nano-chitin fiber 1.5-3.5%, accelerator 0.5-1.5%, dispersant 0.3-0.5%, curing agent 0.2-0.4%, antioxidant 0.2-0.3%, antistatic agent 0.1-0.2%.

[0011] Preferably, the thickness of the PVC rigid substrate is greater than or equal to the thickness of the non-Newtonian fluid buffer colloid, and the thickness of the non-Newtonian fluid buffer colloid is greater than or equal to the thickness of the two-component sound-absorbing cotton fiber column.

[0012] Preferably, the thickness of the two-component sound-absorbing cotton fiber column is greater than or equal to the thickness of the metal rubber elastic layer, and the thickness of the metal rubber elastic layer is greater than or equal to the thickness of the reinforcing rib honeycomb support shell.

[0013] Preferably, the thickness of the honeycomb support shell with reinforcing ribs is greater than or equal to that of the carbon fiber modified ceramic soft film, and the thickness of the PVC hard substrate is greater than or equal to the combined thickness of the metal rubber elastic layer, non-Newtonian fluid buffer gel, honeycomb support shell with reinforcing ribs, and two-component sound-absorbing cotton fiber column.

[0014] Preferably, the metal rubber elastic layer and non-Newtonian fluid buffer gel are embedded inside the PVC hard substrate, and the honeycomb support shell with strong ribs and the two-component sound-absorbing cotton fiber column completely penetrate the PVC hard substrate.

[0015] The present invention provides a PVC material with high hardness, which has the following advantages: Through internal structure modification and optimization, the PVC material of the present invention embeds metal rubber and non-Newtonian fluid buffer gel with good impact resistance and shock absorption buffering effects to modify the structure of conventional PVC materials from the inside and improve the performance of the PVC material. By coating a carbon fiber modified soft porcelain film on the outer surface of the PVC material, the strength and stiffness and corrosion resistance of the PVC material are greatly improved, which is beneficial to protecting the inner PVC material from external force damage. By introducing a honeycomb support shell and a two-component sound-absorbing cotton fiber column inside the PVC material, further reinforcement of the PVC material is achieved, greatly improving the strength of the PVC material and extending the service life of the PVC material. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic side sectional structure of the high-hardness PVC material of the present invention Figure 1 .

[0017] Figure 2 is a schematic side sectional structure of the high-hardness PVC material of the present invention Figure 2 .

[0018] In the figure: 1, PVC hard substrate; 2, metal rubber elastic layer; 3, non-Newtonian fluid buffer gel; 4, carbon fiber modified ceramic soft film; 5, high-strength reinforcing rib; 6, honeycomb support shell with reinforcing ribs; 7, two-component sound-absorbing cotton fiber column. DETAILED DESCRIPTION OF THE INVENTION

[0019] The present invention will be further described and explained below in conjunction with specific embodiments and the accompanying drawings of the specification.

[0020] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0021] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. Example 1

[0022] As Figure 1 、 2 shown, a high-hardness PVC material includes a PVC rigid substrate 1. A carbon fiber-modified ceramic soft film 4 is wrapped around the outer surface of the PVC rigid substrate 1, and a metal rubber elastic layer 2 and a non-Newtonian fluid buffer gel 3 are wrapped inside the PVC rigid substrate 1. A number of high-strength and hard reinforcing ribs 5 are embedded inside the PVC rigid substrate 1. The high-strength and hard reinforcing ribs 5 include a reinforcing rib honeycomb support shell 6 wrapped around the outer surface, and a two-component sound-absorbing cotton fiber column 7 is wrapped inside the reinforcing rib honeycomb support shell 6.

[0023] As Figure 1 、 2 shown, for a high-hardness PVC material, the PVC rigid substrate 1 includes the following components by weight percentage: chitin and carbon fiber double-modified high molecular weight polyvinyl chloride waste 33.8%, polydopamine-modified organosilicon elastomer 20%, polysiloxane and polystyrene double-modified polyoxydimethylbenzene 13%, organic solvent 22%, chitosan hydrochloride 2%, organic rare earth 5%, silica aerogel 3%, accelerator 0.5%, dispersant 0.3%, curing agent 0.2%, antioxidant 0.2%.

[0024] As Figure 1 、 2 shown, for a high-hardness PVC material, the non-Newtonian fluid buffer gel 3 includes the following components by weight percentage: chitosan quaternary ammonium salt-modified concentrated latex 15%, polyacrylamide resin solution 40%, Fe(OH) 3 colloid 10%, nano-ferromagnetic matrix-modified gelatin 15%, polydopamine-modified celluloid glue solution 5%, artificial plasma 5%, magnetic powder 10%.

[0025] As Figure 1 、 2As shown in the figure, a high-hardness PVC material, the double-component sound-absorbing cotton fiber column 7 comprises the following components by weight percentage: chitosan hydrochloride modified polyethylene terephthalate 47.7%, polysiloxane and polystyrene double-modified high-toughness radiation-proof silicone rubber 19.5%, polydopamine modified cellulose acetate resin 26.5%, organic rare earth 3.5%, nano chitin fiber 1.5%, accelerator 0.5%, dispersant 0.3%, curing agent 0.2%, antioxidant 0.2%, antistatic agent 0.1%.

[0026] As Figure 1 、 2 As shown in the figure, for a high-hardness PVC material, the thickness of the PVC hard substrate 1 is greater than or equal to the thickness of the non-Newtonian fluid buffer gel 3, and the thickness of the non-Newtonian fluid buffer gel 3 is greater than or equal to the thickness of the double-component sound-absorbing cotton fiber column 7; the thickness of the double-component sound-absorbing cotton fiber column 7 is greater than or equal to the thickness of the metal rubber elastic layer 2, and the thickness of the metal rubber elastic layer 2 is greater than or equal to the thickness of the reinforced honeycomb support shell 6; the thickness of the reinforced honeycomb support shell 6 is greater than or equal to that of the carbon fiber modified ceramic soft film 4, and the thickness of the PVC hard substrate 1 is greater than or equal to the combined thickness of the metal rubber elastic layer 2, the non-Newtonian fluid buffer gel 3, the reinforced honeycomb support shell 6 and the double-component sound-absorbing cotton fiber column 7.

[0027] Furthermore, the metal rubber elastic layer 2 and the non-Newtonian fluid buffer gel 3 are embedded inside the PVC hard substrate 1, and the reinforced honeycomb support shell 6 and the double-component sound-absorbing cotton fiber column 7 completely penetrate through the PVC hard substrate 1.

[0028] In the present invention, the metal rubber elastic layer 2 and the non-Newtonian fluid buffer gel 3 are arranged inside the PVC hard substrate 1, which can significantly improve the impact resistance and shock absorption and buffering effects of the PVC material. By coating the carbon fiber modified ceramic soft film 4 on the surface of the PVC hard substrate 1, the strength and stiffness and corrosion resistance of the conventional PVC material are significantly improved. Embedding the reinforced honeycomb support shell 6 and the double-component sound-absorbing cotton fiber column 7 inside the PVC hard substrate 1 plays a good strengthening role for the PVC material. Example 2

[0029] The difference between this example and Example 1 is that: As Figure 1 、 2As shown in the figure, a high-hardness PVC material, the PVC hard substrate 1 comprises the following components by weight percentage: chitin and carbon fiber double-modified high molecular weight polyvinyl chloride waste 30%, polydopamine-modified organosilicon elastomer 30%, polysiloxane and polystyrene double-modified polyoxydimethylbenzene 10%, organic solvent 20%, chitosan hydrochloride 3%, organic rare earth 3%, silica aerogel 2%, accelerator 1%, dispersant 0.5%, curing agent 0.3%, antioxidant 0.2%.

[0030] As Figure 1 , 2 shown in the figure, a high-hardness PVC material, the non-Newtonian fluid buffer colloid 3 comprises the following components by weight percentage: chitosan quaternary ammonium salt-modified concentrated latex 10%, polyacrylamide resin solution 40%, Fe(OH) 3 colloid 5%, nano-ferromagnetic matrix-modified gelatin 20%, polydopamine-modified celluloid glue solution 10%, artificial plasma 5%, magnetic powder 10%.

[0031] As Figure 1 , 2 shown in the figure, a high-hardness PVC material, the two-component sound-absorbing cotton fiber column 7 comprises the following components by weight percentage: chitosan hydrochloride-modified polyethylene terephthalate 34.9%, polysiloxane and polystyrene double-modified high-toughness radiation-proof silicone rubber 30.5%, polydopamine-modified cellulose acetate resin 25.6%, organic rare earth 4.7%, nano-chitin fiber 2.3%, accelerator 0.8%, dispersant 0.4%, curing agent 0.3%, antioxidant 0.3%, antistatic agent 0.2%. Example 3

[0032] The differences between this example and Examples 1 and 2 are as follows: As Figure 1 , 2 shown in the figure, a high-hardness PVC material, the PVC hard substrate 1 comprises the following components by weight percentage: chitin and carbon fiber double-modified high molecular weight polyvinyl chloride waste 30%, polydopamine-modified organosilicon elastomer 20.2%, polysiloxane and polystyrene double-modified polyoxydimethylbenzene 13.6%, organic solvent 25%, chitosan hydrochloride 2%, organic rare earth 4%, silica aerogel 4%, accelerator 0.5%, dispersant 0.3%, curing agent 0.2%, antioxidant 0.2%.

[0033] As Figure 1 , 2As shown, a high-hardness PVC material, the non-Newtonian fluid buffer colloid 3 comprises the following components by weight percentage: chitosan quaternary ammonium salt modified concentrated latex 15%, polyacrylamide resin solution 35%, Fe(OH) 3 colloid 5%, nano-ferromagnetic matrix modified gelatin 15%, polydopamine modified celluloid solution 15%, artificial plasma 5%, magnetic powder 10%.

[0034] As Figure 1 , 2 shown, a high-hardness PVC material, the two-component sound-absorbing cotton fiber column 7 comprises the following components by weight percentage: chitosan hydrochloride modified polyethylene terephthalate 41.8%, polysiloxane and polystyrene double-modified high-toughness radiation-proof silicone rubber 26.3%, polydopamine modified cellulose acetate resin 23.6%, organic rare earth 3.5%, nano-chitin fiber 3.5%, accelerator 0.5%, dispersant 0.3%, curing agent 0.2%, antioxidant 0.2%, antistatic agent 0.1%. Example 4

[0035] The differences between this example and Examples 1, 2, and 3 are as follows: As Figure 1 , 2 shown, a high-hardness PVC material, the PVC rigid substrate 1 comprises the following components by weight percentage: chitin and carbon fiber double-modified high-molecular-weight polyvinyl chloride waste 34.2%, polydopamine modified organosilicon elastomer 20%, polysiloxane and polystyrene double-modified polyoxydimethylbenzene 10%, organic solvent 23.7%, chitosan hydrochloride 2.8%, organic rare earth 4.1%, silica aerogel 3.4%, accelerator 0.7%, dispersant 0.5%, curing agent 0.3%, antioxidant 0.3%.

[0036] As Figure 1 , 2 shown, a high-hardness PVC material, the non-Newtonian fluid buffer colloid 3 comprises the following components by weight percentage: chitosan quaternary ammonium salt modified concentrated latex 15%, polyacrylamide resin solution 20%, Fe(OH) 3 colloid 10%, nano-ferromagnetic matrix modified gelatin 20%, polydopamine modified celluloid solution 15%, artificial plasma 10%, magnetic powder 10%.

[0037] As Figure 1 , 2As shown in the figure, a high-hardness PVC material, the double-component sound-absorbing cotton fiber column 7 comprises the following components by weight percentage: chitosan hydrochloride modified polyethylene terephthalate 44.1%, polysiloxane and polystyrene double-modified high-toughness radiation-proof silicone rubber 20.7%, polydopamine modified cellulose acetate resin 25.3%, organic rare earth 3.5%, nano chitin fiber 3.5%, accelerator 1.5%, dispersant 0.5%, curing agent 0.4%, antioxidant 0.3%, antistatic agent 0.2%.

[0038] In the present invention, the PVC material is optimized by internal structure modification, and metal rubber and non-Newtonian fluid buffer colloid with good impact resistance and shock absorption buffering effects are introduced for embedding, so as to modify the structure of the conventional PVC material from the inside and improve the performance of the PVC material. By coating a carbon fiber modified soft porcelain film on the outer surface of the PVC material, the strength and stiffness and corrosion resistance of the PVC material are greatly improved, which is beneficial to protecting the inner PVC material from external force damage. By introducing a honeycomb support shell and a double-component sound-absorbing cotton fiber column inside the PVC material, further reinforcement of the PVC material is realized, the strength of the PVC material is greatly improved, and the service life of the PVC material is prolonged.

[0039] The technical solutions disclosed in the embodiments of the present invention have been introduced in detail above. Specific embodiments are used in this article to elaborate on the principles and implementation manners of the embodiments of the present invention. The descriptions of the above embodiments are only applicable to help understand the principles of the embodiments of the present invention; at the same time, for those of ordinary skill in the art, according to the embodiments of the present invention, there will be changes in the specific implementation manners and application scopes. In summary, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A high-hardness PVC material, characterized by: It comprises a PVC hard substrate (1), the outer surface of the PVC hard substrate (1) is wrapped with a carbon fiber modified ceramic soft film (4), and the inside of the PVC hard substrate (1) is wrapped with a metal rubber elastic layer (2) and a non-Newtonian fluid buffer colloid (3); The PVC hard substrate (1) is internally embedded with a plurality of high-strength reinforcing ribs (5), the high-strength reinforcing ribs (5) comprising a reinforcing rib honeycomb support shell (6) wrapped on the outer surface, and the reinforcing rib honeycomb support shell (6) is internally wrapped with a two-component sound-absorbing cotton fiber column (7); The PVC hard substrate (1) comprises the following components in weight percentage: 30-50% of chitin and carbon fiber double-modified high molecular weight polyvinyl chloride waste material, 20-40% of polydopamine modified silicone elastomer, 10-30% of polysiloxane and polystyrene double-modified polyoxyxylene, 20-30% of organic solvent, 1-3% of chitosan hydrochloride, 2-8% of organic rare earth, 1-5% of silica aerogel, 0.5-1.5% of accelerator, 0.3-0.6% of dispersant, 0.2-0.4% of curing agent, and 0.2-0.3% of antioxidant.

2. The high-hardness PVC material according to claim 1, characterized in that: The non-Newtonian fluid buffer colloid (3) comprises the following components in percentage by weight: 10-15% chitosan quaternary ammonium salt modified concentrated latex, 15-40% polyacrylamide resin liquid, 5-30% Fe(OH)3 colloid, 5-25% nano-ferromagnetic matrix modified gelatin, 5-15% polydopamine modified celluloid glue, 5-10% artificial plasma, and 10-30% magnetic powder.

3. The high-hardness PVC material according to claim 1, characterized in that: The two-component sound-absorbing cotton fiber column (7) comprises the following components in weight percentage: 32.5-63.5% of chitosan hydrochloride modified polyethylene terephthalate, 10.5-45.5% of polysiloxane and polystyrene double modified high-toughness radiation-proof silicone rubber, 8.0-35.5% of polydopamine modified cellulose acetate resin, 3.5-8.5% of organic rare earth, 1.5-3.5% of nano-chitin fiber, 0.5-1.5% of accelerator, 0.3-0.5% of dispersant, 0.2-0.4% of curing agent, 0.2-0.3% of antioxidant, and 0.1-0.2% of antistatic agent.

4. The high-hardness PVC material according to claim 1, characterized in that: The thickness of the PVC hard substrate (1) is greater than or equal to the thickness of the non-Newtonian fluid buffer colloid (3), and the thickness of the non-Newtonian fluid buffer colloid (3) is greater than or equal to the thickness of the two-component sound-absorbing cotton fiber column (7).

5. The high-hardness PVC material according to claim 4, characterized in that: The thickness of the two-component sound-absorbing cotton fiber column (7) is greater than or equal to the thickness of the metal rubber elastic layer (2), and the thickness of the metal rubber elastic layer (2) is greater than or equal to the thickness of the reinforcing rib honeycomb support shell (6).

6. The high-hardness PVC material according to claim 5, characterized in that: The thickness of the reinforcing rib honeycomb support shell (6) is greater than or equal to the carbon fiber modified ceramic soft film (4), and the thickness of the PVC hard substrate (1) is greater than or equal to the combined thickness of the metal rubber elastic layer (2), the non-Newtonian fluid buffer colloid (3), the reinforcing rib honeycomb support shell (6) and the two-component sound-absorbing cotton fiber column (7).

7. The high-hardness PVC material according to claim 5, characterized in that: The metal rubber elastic layer (2) and the non-Newtonian fluid buffer colloid (3) are embedded in the PVC hard substrate (1), and the strong rib honeycomb support shell (6) and the two-component sound-absorbing cotton fiber column (7) completely penetrate the PVC hard substrate (1).

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