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, whi

Method used

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  • High-strength antibacterial sealing piece and preparation method thereof

Examples

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Effect test

Example Embodiment

[0014] The present invention provides a method for preparing a high-strength antibacterial seal, which includes:

[0015] (1) Add fluorine rubber, phthalate ester, reinforcing filler, antibacterial agent, carbon black and activated magnesium oxide to the mixer in sequence, and obtain the pre-mixed powder M after mixing;

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

[0017] (3) The antibacterial masterbatch is formed and vulcanized to obtain a high-strength antibacterial seal; the forming process includes the first hot pressing treatment and the second hot pressing treatment sequentially, wherein the first hot pressing treatment The conditions include: a temperature of 70-80°C and a pressure of 5.5-7.2Mpa; the conditions of the second hot pressing treatment include: a temperature of 110-120°C and a pressure of 8.1-9.5Mpa.

[0018] In a preferred embodiment of the present invention, in...

Example Embodiment

[0027] Example 1

[0028] Add 100g of fluororubber, 4g of phthalate, 4g of pyrophyllite, 5g of zinc oxide, 5g of carbon black and 14g of activated magnesia into the blender in sequence, and obtain premixed powder M after mixing; premix 100g Powder M is mixed with 340g of raw rubber, and added to the internal mixer. After mixing (mixing temperature is 80℃, mixing time is 10min), antibacterial masterbatch is obtained; the antibacterial masterbatch is formed and cured , A high-strength antibacterial seal A1 is obtained. Wherein, the forming process includes a first hot pressing treatment and a second hot pressing treatment in sequence, wherein the conditions of the first hot pressing treatment include: a temperature of 70°C, a pressure of 5.5Mpa; The conditions of the pressure treatment include: a temperature of 110°C and a pressure of 8.1Mpa.

Example Embodiment

[0029] Example 2

[0030] Add 100g of fluororubber, 6g of phthalate, 5g of sepiolite, 7g of copper oxide, 6g of carbon black and 16g of activated magnesia into the blender in turn, and obtain premixed powder M after mixing; premix 100g Powder M is mixed with 380g of raw rubber, and added to the internal mixer. After mixing (mixing temperature is 120℃, mixing time is 20min), antibacterial masterbatch is obtained; the antibacterial masterbatch is formed and cured , A high-strength antibacterial seal A2 is obtained. Wherein, the forming process includes a first hot pressing treatment and a second hot pressing treatment in sequence, wherein the conditions of the first hot pressing treatment include: a temperature of 80°C, a pressure of 7.2Mpa; The conditions of the pressure treatment include: a temperature of 120°C and a pressure of 9.5Mpa.

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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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