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A kind of antibacterial and antioxidant aeration hose and preparation method thereof

An aeration hose, anti-oxidation technology, applied in the direction of hoses, pipes, mechanical equipment, etc., can solve the problems of easy to breed bacteria, easy to oxidize, etc., to achieve strong sterilization general adaptability, strong anti-oxidation ability, and not easy to lose. Effect

Active Publication Date: 2017-12-19
NANJING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Aiming at the problems that existing aeration hoses are easy to breed bacteria and easy to oxidize in the process of preparation and use, the present invention provides an antibacterial and anti-oxidation aeration hose and a preparation method thereof. The raw material components of the aeration hose include PVC resin , plasticizer, stabilizer, lubricant and antibacterial antioxidant, the modified PVC aeration hose synthesized in the present invention has the advantages of simple preparation process, few types of raw materials required, high product qualification rate, etc., and its antibacterial and antioxidant properties obvious

Method used

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  • A kind of antibacterial and antioxidant aeration hose and preparation method thereof
  • A kind of antibacterial and antioxidant aeration hose and preparation method thereof
  • A kind of antibacterial and antioxidant aeration hose and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0037] An antibacterial and anti-oxidation aeration hose, the specific components of its raw materials and the parts by weight of each component are: PVC resin: 100 parts; plasticizer (dioctyl phthalate) 40 parts; stabilizer ( Calcium N-alkylaspartate): 2 parts; lubricant (calcium stearate): 0.4 part; antibacterial antioxidant: 0.5 part.

[0038] The antibacterial antioxidant is obtained by reacting PEI with a molecular weight in the range of 50,000-100,000, dodecyltrimethyl tertiary amine, and butylhydroxyanisole, and the molar ratio of the three is 1:0.5:0.1.

[0039] The preparation method of the above-mentioned antibacterial and anti-oxidation aeration hose is as follows:

[0040] Step (1): According to the molar ratio of 1:0.5:0.1, three solutions of PEI solution, dodecyl trimethyl tertiary amine and butyl hydroxyanisol with molecular weight in the range of 50000-100000 are taken, and dodecyl trimethyl Methyl tertiary amine and butyl hydroxyanisole are placed in a reacti...

Embodiment 2

[0046] Other conditions of this instance are the same as embodiment 1, and the difference is:

[0047] In the step (1), the molar ratio is 1:1:2 to get three kinds of substances of PEI solution, dodecyltrimethylammonium bromide and tetraerythritol ester with molecular weight in the range of 100000-500000, and dodecyltrimethyl Ammonium bromide and tetraerythritol ester were placed in a reaction kettle, and PEI solution was slowly added dropwise therein, heated to 40°C for a mixed reaction for 48 hours, and antibacterial and antioxidant were obtained by vacuum distillation after the reaction;

[0048] In step (2), 100 parts of PVC resin, 60 parts of plasticizer dioctyl phthalate, 5 parts of stabilizer calcium stearate, 0.6 part of lubricant paraffin and 1 part of antibacterial antioxidant are placed in the biaxial Stir and knead in a stirring kneader, use steam to heat up the temperature to 105°C and knead for 45 minutes. After the plasticizer is completely absorbed by the PVC r...

Embodiment 3

[0051] Other conditions of this instance are the same as embodiment 1, and the difference is:

[0052] In step (1), the molar ratio is 1:2:0.5 to take PEI solution, dodecyldimethylethylammonium bromide and tert-butylhydroquinone in the range of 300000-500000 molecular weight, Put dodecyl dimethyl ethyl ammonium bromide and tert-butyl hydroquinone in the reaction kettle, slowly add PEI solution dropwise, heat to 50°C and mix for 36 hours. After the reaction is over, distill under reduced pressure Antibacterial and antioxidant can be obtained;

[0053] In step (2), 100 parts of PVC resin, 30 parts of plasticizer di-n-octyl phthalate, 30 parts of plasticizer dioctyl sebacate, 2.5 parts of stabilizer zinc stearate, lubricant 0.5 parts of polyethylene wax and 0.75 parts of antibacterial antioxidant are placed in a twin-shaft stirring kneader for stirring and kneading. The condition is to knead for 55 minutes at 105 ° C. After the plasticizer is completely absorbed by the PVC resin...

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Abstract

The invention discloses an antibacterial anti-oxidation aeration hose and a preparation method thereof, which belong to the preparation field of materials. The antibacterial oxidation aeration hose comprises raw materials with parts by weight: polyvinyl chloride (PVC) resins 100 parts, plasticizers 40-60 parts, stabilizers 2-5 parts, lubricants 0.4-0.6 part, antimicrobial and antioxidant agents 0.5-1 part, and the antimicrobial and antioxidant agents are formed by dendritic polyethylene imines, long chain alkyl amine substances, and phenols or ester compounds through crosslink-copolymerization. The antibacterial anti-oxidation aeration hose is strong in sterilization universal adaptability, can kill most species of bacteria, and has the advantages of low price, uneasy leakage and low biotoxicity and the like. Furthermore, the long chain alkyl amine substances in the antimicrobial and antioxidant agents can neutralize and adsorb hydrochloric acids which are released during the decomposition process of PVC, and have an addition reaction with formed double bonds, thereby improving antioxygenic property of PVC materials.

Description

technical field [0001] The invention belongs to the field of material preparation, and more specifically relates to an antibacterial and antioxidative aeration hose and a preparation method thereof. Background technique [0002] The aeration hose is in an inflated state during aeration, and is flattened when the aeration is stopped, so the sewage is not easy to enter the pipe. At the same time, compared with the traditional aerator head, the hose installation and maintenance are simple and convenient. Therefore, aerobic biological treatment processes, such as biological multiplication process, contact oxidation process, etc., have been more and more widely used. [0003] At present, the most widely used aeration hose is made of PVC. During the preparation of soft PVC pipes, it is usually necessary to add a large amount of plasticizer for plasticization. Usually, the quality of the plasticizer accounts for more than 50% of the total mass. However, during the preparation and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L27/06C08L79/02C08G73/04F16L11/04
CPCC08G73/0213C08G73/0226C08K2201/014C08L27/06C08L2201/08C08L2203/18C08L2205/03F16L11/04C08L79/02C08K5/12C08K5/17C08K5/098C08L91/06C08L23/06C08K5/11
Inventor 张炜铭陈良吕路潘丙才
Owner NANJING UNIV
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