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High-strength antibacterial sealing piece and preparation method thereof

A seal, high-strength technology, applied in household components, other household appliances, applications, etc., can solve the problems of high antibacterial performance and mechanical strength, and achieve the effect of simple method, excellent antibacterial ability, and easy-to-obtain raw materials

Inactive Publication Date: 2018-11-20
芜湖聚网信息技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a high-strength antibacterial seal and its preparation method, which solves the problem that ordinary seals cannot meet high antibacterial performance and mechanical strength at the same time

Method used

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  • High-strength antibacterial sealing piece and preparation method thereof

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preparation example Construction

[0014] The present invention provides a kind of preparation method of high-strength antibacterial sealing member, and described preparation method comprises:

[0015] (1) Add fluororubber, phthalate, reinforcing filler, antibacterial agent, carbon black and active magnesium oxide into the agitator in sequence, and obtain premixed powder M after mixing;

[0016] (2) Mix the premixed powder M with the raw rubber, and add it into the internal mixer, and obtain the antibacterial masterbatch after mixing;

[0017] (3) The antibacterial masterbatch is passed through molding and vulcanization processes to obtain high-strength antibacterial seals; the molding process includes the first hot-pressing treatment and the second hot-pressing treatment carried out in sequence, wherein the first hot-pressing treatment The conditions for the second hot-pressing treatment include: the temperature is 70-80°C, and the pressure is 5.5-7.2Mpa; the conditions for the second hot-pressing treatment in...

Embodiment 1

[0028] Add 100g of fluororubber, 4g of phthalate, 4g of pyrophyllite, 5g of zinc oxide, 5g of carbon black and 14g of active magnesium oxide into the mixer in sequence, and mix to obtain premixed powder M; premix 100g Powder M and 340g of raw rubber are mixed, and added to an internal mixer, after kneading (the mixing temperature is 80°C, and the kneading time is 10min), the antibacterial masterbatch is obtained; the antibacterial masterbatch is passed through the molding and vulcanization process , to obtain a high-strength antibacterial seal A1. Wherein, the molding process includes the first hot-pressing treatment and the second hot-pressing treatment in sequence, wherein the conditions of the first hot-pressing treatment include: the temperature is 70°C, the pressure is 5.5Mpa; the second hot-pressing treatment The conditions of pressure treatment include: the temperature is 110°C, and the pressure is 8.1Mpa.

Embodiment 2

[0030] Add 100g of fluororubber, 6g of phthalate, 5g of sepiolite, 7g of copper oxide, 6g of carbon black and 16g of active magnesium oxide into the mixer in sequence, and mix to obtain premixed powder M; premix 100g Powder M and 380g of raw rubber are mixed, and added to an internal mixer, and mixed (the mixing temperature is 120°C, and the mixing time is 20min) to obtain an antibacterial masterbatch; the antibacterial masterbatch is passed through a molding and vulcanization process , to obtain a high-strength antibacterial seal A2. Wherein, the molding process includes the first hot-pressing treatment and the second hot-pressing treatment in sequence, wherein the conditions of the first hot-pressing treatment include: the temperature is 80°C, the pressure is 7.2Mpa; the second hot-pressing treatment The conditions of the pressure treatment include: the temperature is 120° C., and the pressure is 9.5 MPa.

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Abstract

The invention discloses a high-strength antibacterial sealing piece and a preparation method thereof. The preparation method comprises the following steps: sequentially adding fluororubber, phthalic acid ester, a reinforced filling agent, an antibacterial agent, carbon black and active magnesium oxide into a stirrer and mixing to obtain premixed powder M; and mixing the premixed powder M and raw rubber, adding the mixture into an internal mixer and mixing to obtain antibacterial masterbatch rubber. The problem that the common sealing piece cannot meet high antibacterial property and mechanicalstrength simultaneously is solved.

Description

technical field [0001] The invention relates to a seal, in particular to a high-strength antibacterial seal and a preparation method thereof. Background technique [0002] The seal is a material or part that prevents fluid or solid particles from leaking from adjacent joint surfaces and prevents external impurities such as dust and moisture from intruding into the internal parts of the machine equipment. The storage room temperature of the seal is preferably below 30°C. Parts are subject to high temperature aging. Seals are also commonly used in medical, food preparation and other fields. Seals used in these fields often require high antibacterial ability, and ordinary seals cannot meet high antibacterial performance and mechanical strength at the same time. [0003] Therefore, it is an urgent problem to be solved in the present invention to provide a high-strength antibacterial sealing member capable of simultaneously satisfying antibacterial performance and mechanical str...

Claims

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Application Information

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IPC IPC(8): C08L21/00C08L27/12C08K13/02C08K5/12C08K3/22C08K3/32C08K3/04B29B7/00B29C43/58B29C43/52B29L31/26
CPCC08L21/00B29B7/002B29C43/52B29C43/58B29C2043/5808B29C2043/5816B29L2031/265C08K2003/222C08K2003/2248C08K2003/2296C08K2003/322C08L27/12C08K13/02C08K5/12C08K3/22C08K3/04C08K3/32
Inventor 蒿建雷
Owner 芜湖聚网信息技术有限公司
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