Antimicrobial anti-aging refrigerator door sealing strip and preparation method thereof
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A refrigerator door, anti-aging technology, used in the chemical industry, household refrigeration equipment, lighting and heating equipment, etc., can solve the problems of low mechanical strength, deformation, bacteria, mold and harmful microorganisms of refrigerator door seals
Inactive Publication Date: 2015-12-02
陆思烨
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Problems solved by technology
However, after the refrigerator is used for a period of time, the surface of the refrigerator door seal will become dirty, breeding bacteria, mold and other harmful microorganisms, contaminating the stored food, and posing a serious threat to human health.
At the same time, the mechanical strength of the refrigerator door seal is low, and it is easy to age, harden and deform
Once aging occurs, the seal will not be tight, resulting in air-conditioning leakage and increased energy consumption, affecting the cooling effect of the refrigerator, and even causing the motor of the compressor to burn out
Method used
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Embodiment 1
[0025] 1. Raw material preparation:
[0026] ①Preparation of nano-loess: collect a certain amount of loess and put it into a muffle furnace, calcinate at 500°C for 0.5h, cool it and grind it into a fine powder of 150 mesh, add a hydrochloric acid solution with a concentration of 0.5-25wt% that is 12 times the weight of the fine powder , stirred and reacted at 65°C for 2h, then added an appropriate amount of 25wt% sodium hydroxide solution to adjust the pH value to neutral, stirred at room temperature for 1.5h, filtered, and the filter cake was washed 3 times with deionized water, at 100°C Dried under blast, ground to a particle size of 1200 mesh, to obtain white nano-loess;
[0027] ②Preparation of Impatiens, wild chrysanthemum, orchid herb extracts: Collect non-rotten Impatiens, wild chrysanthemums, and orchid herbs, wash them separately, dry them, crush them into 25-mesh coarse powder, and pour them into corresponding extraction tanks , then add 9 times the weight of coarse...
Embodiment 2
[0035] 1. Raw material preparation:
[0036] ①Preparation of nano-loess: collect a certain amount of loess and put it into a muffle furnace, calcinate at 350°C for 2 hours, grind it into a fine powder of 120 mesh after cooling, add a hydrochloric acid solution with a concentration of 0.5-25 wt% 10 times the weight of the fine powder, Stir and react at 75°C for 1.5h, then add an appropriate amount of 25wt% sodium hydroxide solution to adjust the pH value to neutral, stir and react at room temperature for 1.5h, filter, wash the filter cake twice with deionized water, Dried under blast, ground to a particle size of 1000 mesh, to obtain white nano-loess;
[0037] ②Preparation of Impatiens, wild chrysanthemum, orchid herb extracts: collect non-rotten Impatiens, wild chrysanthemums, and orchid herbs, wash them separately, dry them, crush them into 35-mesh coarse powder, and pour them into corresponding extraction tanks Add 12 times the weight of the coarse powder in distilled water...
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Abstract
The invention provides an antimicrobial anti-aging refrigerator door sealing strip and a preparation method thereof. The antimicrobial anti-aging refrigerator door sealing strip comprises a rubber sleeve and magnetic powder, wherein the rubber sleeve comprises raw materials with percentage by weight: polyvinyl chloride 30-65%, ethylene-vinyl acetate copolymer 3-10%, chlorinated polyethylene 7-15%, tributyl citrate 20-30%, natural antibacterial agent 3.5-12% and epoxy alopecuroides seed oil 1.5-3%. The rubber sleeve is made through many process methods, the magnetic powder is added in the rubber sleeve, the positions of four corners are welded through fusing or bonded to make into the antimicrobial anti-aging refrigerator door sealing strip, and the antimicrobial anti-aging refrigerator door sealing strip is smooth in sense of touch and high in rebound resilience. The antimicrobial anti-aging refrigerator door sealing strip has the effects of wide antimicrobial spectrum, high efficiency, persistence and safety, also can improve mechanical strength, cold resistant and ageing resistance ability, has the effects of aroma enhancement and far infrared radiation, plays the roles of purifying the environment, eliminates peculiar smell and self cleaning and mildew proofing, and is beneficial for human bodies to obtain more health interests. The antimicrobial anti-aging refrigerator door sealing strip does not deform, excellent in sealing effect, energy-saving and environmentally friendly and long in service life.
Description
technical field [0001] The invention relates to a refrigerator door seal, in particular to an antibacterial and aging-resistant refrigerator door seal and a preparation method thereof. Background technique [0002] The refrigerator door seal is a refrigerator accessory used to seal between the refrigerator door and the cabinet. Its function is to prevent the heat exchange between the cold air in the refrigerator and the hot air outside, ensure the freshness of the refrigerator, and prolong the service life of the refrigerator. Most of the existing refrigerator door seals are composed of rubber sleeves and magnetic strips. Among them, the main component of the rubber sleeves is soft polyvinyl chloride, which is processed into rubber sleeves with a certain structure through extrusion molding; the main component of the magnetic strips is made of adhesive Ferrite powder and synthetic rubber are made of soft, elastic and twistable permanent magnets through composite co-extrusion ...
Claims
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Application Information
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