Antibacterial polyvinyl chloride plastic and preparation method thereof
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A technology of polyvinyl chloride and polyvinyl chloride resin, applied in the field of antibacterial polyvinyl chloride plastic and its preparation, can solve problems such as the decrease of tensile strength and impact performance, and the limitation of calcium carbonate addition, and achieves reduction of high temperature decomposition and energy reduction. Consume, make simple effects
Inactive Publication Date: 2017-10-13
湖南凯誉电气科技有限公司
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Problems solved by technology
[0004] The addition of a large amount of inorganic fillers often brings about a significant decline in mechanical properties, especially tensile strength and impact properties, so the amount of calcium carbonate added to PVC products is limited
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Embodiment 1
[0021] An antibacterial polyvinyl chloride plastic, comprising the following components by weight: 50 parts of polyvinyl chloride resin, 30 parts of calcium carbonate powder, 3 parts of plasticizer, 2 parts of ACR auxiliary agent, 1 part of stearic acid, Calcium acid 1 part, stabilizer 2 parts, nano titanium dioxide 2 parts.
[0022] In this embodiment, the calcium carbonate powder is heavy calcium carbonate, and the particle size of the calcium carbonate is less than or equal to 1200 mesh; the nano-titanium dioxide is rutile nano-titanium dioxide; the ACR additive is methyl methacrylate Copolymer with acrylates.
[0023] A preparation method for antibacterial polyvinyl chloride plastics, comprising the following steps:
[0024] (1) Mix and stir:
[0025] ① Stir polyvinyl chloride resin, calcium carbonate powder and whitening powder at high speed, and stop stirring when the temperature reaches 100°C;
[0026] ② Continue to add plasticizer, ACR additives, stearic acid, etc. ...
Embodiment 2
[0030] An antibacterial polyvinyl chloride plastic, comprising the following components by weight: 80 parts of polyvinyl chloride resin, 50 parts of calcium carbonate powder, 3 parts of plasticizer, 4 parts of ACR auxiliary agent, 2 parts of stearic acid, stearin 0.8 parts of calcium acid, 4 parts of stabilizer, and 3.5 parts of nano-titanium dioxide.
Embodiment 3
[0032] An antibacterial polyvinyl chloride plastic, comprising the following components by weight: 70 parts of polyvinyl chloride resin, 40 parts of calcium carbonate powder, 4 parts of plasticizer, 3 parts of ACR auxiliary agent, 1 part of stearic acid, stearin 0.8 parts of calcium acid, 3 parts of stabilizer, and 3 parts of nano-titanium dioxide.
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Abstract
The invention provides antibacterial polyvinyl chloride plastic. The antibacterial polyvinyl chloride plastic is prepared from the following components in parts by weight: 50 to 80 parts of polyvinyl chloride resin, 30 to 50 parts of calcium carbonate powder, 3 to 5 parts of a plasticizer, 2 to 5 parts of an ACR (Acrylics) auxiliary agent, 1 to 2 parts of stearic acid, 0.8 to 1.5 parts of calcium stearate, 2 to 4 parts of a stabilizer and 2 to 4 parts of nano titanium white. The invention further discloses a preparation method of the antibacterial polyvinyl chloride plastic; the preparation method comprises two steps of mixing and stirring, and carrying out injection molding. According to the antibacterial polyvinyl chloride plastic provided by the invention, raw materials are uniformly stirred and then are directly subjected to the injection molding; high-temperature granulation is not needed and stirring temperature is lower than 100 DEG C, so that a process flow of a plastic product can be simplified and the consumption of energy sources is reduced; high-temperature decomposition of polyvinyl chloride and an additive can be reduced and the performance of the plastic product is ensured. Meanwhile, the added nano titanium white has the characteristics of antibacterial performance, ultraviolet resistance, strong coloring power and the like; the nano titanium white can be used for replacing a whitening agent and the plastic product can be enabled to have good antibacterial performance and weather resistance after the nano titanium white is added.
Description
technical field [0001] The invention belongs to the technical field of polyvinyl chloride materials, in particular to an antibacterial polyvinyl chloride plastic and a preparation method thereof. Background technique [0002] Polyvinyl chloride is a general-purpose resin with large output and excellent comprehensive performance. It has good physical, mechanical, chemical and electrical properties, as well as flame retardancy, transparency, chemical resistance and many other advantages. [0003] Among them, calcium carbonate has been widely used as a filler in the processing of polyvinyl chloride, and has become the main means to reduce the cost of products. At the same time, calcium carbonate can effectively absorb the hydrogen chloride gas released when the material is burned. [0004] The addition of a large amount of inorganic fillers often brings about a significant decline in mechanical properties, especially tensile strength and impact properties, so the amount of calc...
Claims
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Application Information
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