A high-strength and high-memory composite polyurethane board with antifouling function and its preparation method

A technology of composite polyurethane and composite boards, which is applied in artificial islands, infrastructure engineering, construction, etc., can solve the problems of increasing the dynamic load and static load of the platform, the inability to prevent the growth of the protective outer layer, and the influence of the stability of the facility structure, etc., to achieve Prevent biofouling, increase anti-fouling function, solve anti-corrosion, anti-fouling and high-strength effects

Active Publication Date: 2021-12-24
深圳安盾海洋新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Currently, FRP, PTC, HDPE, corrosion-resistant steel and other coating anti-corrosion technologies are the most effective protection for local key areas and key parts such as structures and steel structure nodes in the ocean spray splash area and tidal range area, as well as in rivers and lakes. These technologies have a long-term protective effect on structures, but none of these technologies have anti-fouling designs, which cannot prevent algae, shellfish and other organisms from attaching and growing on the outer layer of protection, especially in rivers and oceans. Construction facilities, such as wharf steel piles , offshore platforms, etc., due to the resistance formed by a large number of biological attachments, the impact of water flow, swells, etc. has a great impact on the structural stability of these facilities, which is a technical problem that needs to be solved urgently
Especially on offshore platforms, there are a large number of marine organisms attached to the tidal range area. At present, there is no effective way to remove them in time and quickly. The attached marine organisms increase the dynamic load and static load of the platform. Under the impact of swells, there are huge hidden dangers to the structural safety of the platform.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Add 4% organic silicon and 5% organic fluorine to modify the polyurethane resin, and degas it at 95 °C. According to modified polyurethane 70%, 6% alumina, 3% nano titanium dioxide, 5% ceramic fiber, 4% carbon fiber, 0.3% antioxidant, 5% coupling agent, 3.5% dispersant, 0.5% light stabilizer, 2.7 % carbon black, fully mixed and degassed at 110°C, extruded into a 1mm thick sheet with a twin-screw extruder, vulcanized at 95°C for 20 minutes, aged at room temperature for 1 day, cut according to the design requirements, and became a black sheet ;

[0016] The prepared composite polyurethane sheet has a tensile strength of 27MPa, a tear strength of 185kN / m, and a surface energy of 16.37mJ / m 2 . Suitable for antifouling protection of building installations in still water.

Embodiment 2

[0018] Add 7.5% organic silicon and 9% organic fluorine to modify the polyurethane resin, and degas it at 95 °C. According to modified polyurethane 60%, 2.5% graphene, 7% alumina, 3.5% metal fiber, 5% polyethylene fiber, 2.5% titanium dioxide, 0.5% antioxidant, 5% coupling agent, 2% light stabilizer, 3% dispersant, 7.5% titanium dioxide, 1.1% lemon, 0.4% yellow phthalocyanine blue, fully mixed and degassed at 115°C, extruded into a 3mm thick plate with a twin-screw extruder, vulcanized at 95°C for 90 minutes, Mature at room temperature for 3 days, cut according to the design requirements, and become a royal blue plate;

[0019] The prepared composite polyurethane sheet has a tensile strength of 54MPa, a tear strength of 236kN / m, an abrasion index of 154%, and a surface energy of 9.64mJ / m 2 . It is suitable for the antifouling protection of construction facilities located in the sea.

Embodiment 3

[0021] With embodiment 2 gained sheet material as surface material,

[0022] According to polyurethane 75%, 3% calcium carbonate, 8% polymer fiber free, 3% coupling agent, 2.5% dispersant, 4% zinc oxide, 1% antioxidant, 0.5% light stabilizer, 3% carbon black, in Fully kneaded and degassed at 115°C, extruded into a 2mm thick plate with a twin-screw extruder, vulcanized at 90°C for 60 minutes, and aged at room temperature for 2 days to prepare a black plate; with this plate as the back material, the surface Material, 0.2mm thick high-strength polyethylene cloth, and back material are uniformly heated to 105°C, hot-pressed and composited into one, and a 5.2mm-thick high-memory and high-strength composite plate is obtained;

[0023] The prepared high-memory and high-strength composite polyurethane sheet has a tensile strength of 114MPa, a tear strength of 536kN / m, an abrasion index of 154%, and a surface energy of 9.64mJ / m 2 . Suitable for anti-fouling protection of offshore oil...

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Abstract

A high-strength and high-memory composite polyurethane board with antifouling function and its preparation method. The raw materials of the board include organic silicon, polyurethane resin modified by organic fluorine, wear-resistant materials, reinforcing materials, colorants, light stabilizers, Antioxidant, coupling agent and dispersant are produced through kneading, degassing, molding, vulcanization, aging, and heat sealing process with fiber cloth; the invention has excellent stretch resistance, puncture resistance, weather resistance and wear resistance , corrosion resistance and low surface energy, can effectively prevent biofouling and occasions where antifouling coatings cannot be applied, and is suitable for heavy-attachment areas of marine structures in marine structures; it can be used in conjunction with petrolatum anti-corrosion products to achieve heavy-duty anti-corrosion and anti-fouling Pollution dual function; or add to the outer layer of the existing PTC and other coating anti-corrosion systems, increase the anti-fouling function of PTC and other technologies, broaden the application field of PTC and other coating anti-corrosion technologies, suitable for building materials for manufacturing offshore platforms, and can solve the problem of rivers and rivers Anti-corrosion and anti-fouling and high-strength technical problems for buildings and ship structures in lakes and seas.

Description

technical field [0001] The invention relates to a high-strength and high-memory composite polyurethane plate with antifouling function and a preparation method, belonging to the technical field of antifouling and anticorrosion materials. Background technique [0002] Currently, FRP, PTC, HDPE, corrosion-resistant steel and other coating anti-corrosion technologies are the most effective protection for local key areas and key parts such as structures and steel structure nodes in the ocean spray splash area and tidal range area, as well as in rivers and lakes. These technologies have a long-term protective effect on structures, but none of these technologies have anti-fouling designs, which cannot prevent algae, shellfish and other organisms from attaching and growing on the outer layer of protection, especially in rivers and oceans. Construction facilities, such as wharf steel piles , offshore platforms, etc., due to the resistance formed by a large number of biological attac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02B17/00C08L75/04C08L23/06C08K13/04C08K7/06C08K3/22C08K3/04
CPCE02B17/0026E02B17/003C08K3/04C08K3/22C08K7/06C08K13/04C08L75/04C08L2205/16C08K2201/011C08K2003/2241C08K2003/2227C08L23/06
Inventor 潘杰杨春晖陈庆
Owner 深圳安盾海洋新材料有限公司
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