Preparation method of 3D printing acrylic reinforced bathtub material

Abstract

The invention belongs to the technical field of high polymer materials, in particular to a preparation method of a 3D printing acrylic reinforced bathtub material. The invention discloses a preparation method. The bathtub material has a flat and smooth surface and uniform color, is free of cracks, holes, bubbles, wavy ribs, concretions, and slight scratches, and the water splashed on the upper edge surface through modification treatment can flow back to the bathtub; due to in-situ polymerization introduction of organic silicon of polyurethane, the surface of the reinforced material has stronger scratch resistance; according to the present invention, the material has characteristics of good heat resistance, good scratch resistance, no additional surface coating material, and good thermal stability, such that the material can be suitable for 3D printing so as to satisfy the production and the manufacturing of the rapid customized acrylic bathtub.

Description

technical field [0001] The invention belongs to the technical field of adhesives, in particular to a method for preparing a 3D printed acrylic reinforced bathtub material. Background technique [0002] A bathtub is a plumbing fixture used for bathing or showering, usually in a domestic bathroom. Modern bathtubs are mostly made of acrylic or ceramics, and some are made of steel or even wood covered with ceramics. Old Western bathtubs are usually made of rust-resistant treated steel or iron. Traditional Japanese bathtubs are made of wood. For a long time, most bathtubs are rectangular. In recent years, due to the popularity of acrylic bathtubs, bathtubs of various shapes have begun to appear. At present, the acrylic bathtubs produced at home and abroad are generally produced by vacuum forming technology, usually with acrylic or composite board plastic plates, because the appearance of bathtubs and other products is relatively complicated and has a deep molding height, the e...

AI Technical Summary

Problems solved by technology

At present, the acrylic bathtubs produced at home and abroad are generally produced by vacuum forming technology, usually with acrylic or composite board plastic plates, because the appearance of bathtubs and other products is relatively complicated and has a deep molding height, the existing Ordinary equipment is difficult to meet the process requirements, and high-cost equipment can solve the problem of process difficulty, but the mold cost is high and the scope of application is narrow. In actual production, design and process blisters according to the design drawings or actual samples of bathtub molding. Forming moulds, the cost of the mold is high, the processing cycle is long, and the application of the variety of bathtubs in the actual production is greatly limited. The manufacturer cannot follow the market trend and update quickly, and when the customer has customized needs However, the design and production cannot be carried out in a timely and effective manner. The existing preparation methods are extremely restrictive. The cut sheets are heated and softened in the furnace of the blister forming machine to soften the acrylic sheets. The softened sheets are mechanically pressed. On the mold, under the condition of sealing inside the mold, through the blowing suction of compressed air or vacuum, the sheet is thermally stretched and deformed, and adsorbed on the wall of the mold, and the cooling fan is activated according to the timing to make the sheet hard and shaped, and then demolded. Take out the blank, and the molded blank needs to be reinforced with resin. Use a special spray gun to coat the reinforcing material on the bottom surface of the sanitary ware. After the product is cured, start trimming and cutting. Manual cutting is laborious and the quality is very high. It is difficult to guarantee, and there are serious safety hazards. After the product is formed, additional holes need to be drilled. However, due to the relatively expensive equipment, most of them are manually operated at present.

The surface of the existing acrylic staff is easy to scratch. Although the acrylic bathtub is light in weight, it is easy to hang dirty, noisy when filling water, poor high temperature resistance, non-wearable and easy to age and change color on the surface. In the prior art, the surface of the acrylic bathtub is painted The method of coating, such as Chinese patent CN2018116095211 discloses "a thermal insulation health bathtub and its spraying process and its coating preparation method", the polyurethane spray coating used not only has good thermal insulation performance, but also an environmentally friendly coating, which is not harmful to health Any harm will be caused; the spraying process of the present invention can make the spraying efficiency higher, the spraying thickness more uniform, and the "burning cylinder (acrylic bathtub body) phenomenon" will not occur, strong shaping, and better constant temperature effect, but it is still inevitable It has the shortcomings of coating wear and poor aging resistance. In view of the above technical problems, it is urgent for those skilled in the art to develop a preparation method for 3D printing acrylic reinforced bathtub materials to meet the existing technical requirements and a wide range of market demands.