Organosilicone master batch, self-cleaning PERT floor heating pipe and preparation method of self-cleaning PERT floor heating pipe
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An organic silicone and masterbatch technology, applied in chemical instruments and methods, mechanical equipment, hoses, etc., can solve problems such as reducing the thermal conductivity of pipes, reducing the flow rate of hot water in pipes, and poor flexibility.
Active Publication Date: 2019-11-22
TIANJIN ZHONGCAI PROFILES
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In the heating system, the oxygen in the water will enter the pipeline to breed bacteria, and finally form microbial slime on the pipe wall, which greatly reduces the heat conduction efficiency of the pipeline; The flow rate will also cause some microorganisms in the water to adhere, and eventually form microbial slime, which will affect the heating effect
[0003] PEX and PB floor heating pipes have the defects of poor flexibility and complicated processing; PERT floor heating pipes, that is, heat-resistant polyethylene pipes, have the advantages of light weight, long service life, good flexibility, and easy bending. Anti-scaling performance still needs to be improved
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[0035] In the present invention, in terms of parts by weight, the raw materials for the preparation of the organosilicone masterbatch include 40-60 parts of organosilicone powder, preferably 50 parts. In the present invention, the particle size of the organic silicone powder is preferably 2-10 μm, more preferably 6 μm. In the present invention, the preparation method of the organic silicone powder preferably comprises the following steps:
[0036] (1) Provide a dispersion containing surfactant;
[0037] (2) mixing the dispersion liquid described in step (1) with silicone oil and a catalyst to undergo a crosslinking reaction to obtain an organosilicone emulsion;
[0038] (3) The organic silicone emulsion is sequentially filtered, washed, dried and sieved to obtain organic silicone powder.
[0039] The present invention preferably provides a surfactant-containing dispersion. In the present invention, the specific preparation method of the surfactant-containing dispersion is p...
Embodiment 1
[0070] A. Preparation of silicone masterbatch
[0071] (1) At room temperature, in 900g of water, add 40g of sodium alkylbenzene sulfonate, 10g of sodium lauryl sulfate, adjust the pH value to 6 with hydrochloric acid with a mass concentration of 25%, and stir electromagnetically for 10 minutes to obtain a surface-containing Dispersions of active agents;
[0072] (2) Add 1.5g of tetramethylammonium hydroxide, 320g of amino silicone oil, and 208g of methyl silicone oil into the surfactant-containing dispersion obtained in step (1), and use a high stirrer at a constant temperature of 50°C. Stir at a speed of 1350rpm for 28min, then turn to a slow speed, stir at a speed of 230rpm for 9h, and store it at room temperature for 50h, so that the silicone oil is cross-linked and solidified in the dispersion liquid containing a surfactant, and an organic compound that is matured and dispersed evenly is obtained. Silicone emulsion;
[0073] (3) Filter the organosilicone emulsion after ...
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Abstract
The invention relates to the technical field of floor heating pipes, in particular to an organic silicone master batch, a self-cleaning PERT floor heating pipe and a preparation method of the self-cleaning PERT floor heating pipe. The organic silicone master batch provided by the invention is prepared from the following raw materials in parts by weight of 40-60 parts of organic silicone powder; 2-10 parts of a fluorine-containing polymer; and 80-120 parts of matrix resin. In the present invention, the organic silicone powder is an effective component and is dispersed in the matrix resins, under the matching effect of a fluorine-containing polymer, the lubricating property of the organic silicone master batch can be obviously improved, and the matrix resin is adopted as the carrier and hasthe good compatibility with the heat-resistant polyethylene. By adopting the organic silicone master batch provided by the present invention to prepare the floor heating pipe, the smoothness of the inner wall of the pipe can be significantly improved, the dirt and the bacteria in the water in the pipe are difficult to adhere to the inner wall of the pipe, the self-cleaning effect is provided alongwith the water flowing, and the anti-scaling performance of the floor heating pipe is improved.
Description
technical field [0001] The invention relates to the technical field of floor heating pipes, in particular to an organic silicone masterbatch, self-cleaning PERT floor heating pipes and a preparation method thereof. Background technique [0002] With the continuous improvement of people's requirements for heating systems, various functional floor heating pipes have been applied. In the ground radiant heating system, the main pipe materials used are PEX, PERT, PB and so on. In the heating system, the oxygen in the water will enter the pipeline to breed bacteria, and finally form microbial slime on the pipe wall, which greatly reduces the heat conduction efficiency of the pipeline; The flow rate will also cause some microorganisms in the water to attach, and eventually form microbial slime, which will affect the heating effect. [0003] PEX and PB floor heating pipes have the defects of poor flexibility and complicated processing; PERT floor heating pipes, that is, heat-resis...
Claims
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