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Concave natural rubber coated pad and production technology thereof

A technology of natural rubber and production technology, which is applied in the field of concave natural rubber film-coated gaskets and its production technology, can solve the problems of insufficient resilience, reagent mixing, and inaccurate reagent detection results, etc., achieve excellent self-sealing performance, and improve production Efficiency, easy to identify the effect of the coated surface

Active Publication Date: 2017-09-15
浙江欧尔赛斯科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although the prior art has good heat resistance and sealing effect, its resilience is not good enough
In the process of detecting reagents, the sampler needs to puncture multiple times to take out the reagent through the gasket. If the existing technology is used, when the sampler is punctured through the prior art and taken out from it, it will leave a difficult-to-close gap in the prior art. Pores can easily cause reagents to mix with the external environment, which can easily lead to inaccurate detection results of reagents

Method used

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  • Concave natural rubber coated pad and production technology thereof
  • Concave natural rubber coated pad and production technology thereof
  • Concave natural rubber coated pad and production technology thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0053] Embodiment 1: Concave natural rubber coated gasket, such as figure 1As shown, including the natural rubber layer 1 and the coating layer 2, the components and their corresponding parts by weight are shown in Table 1, and are prepared by the following steps:

[0054] S1, natural rubber layer 1 ingredient mixing, banburying: Weigh the natural rubber in the natural rubber layer 1 in corresponding parts by weight, and stearic acid, titanium dioxide, iron oxide red, anti-aging agent 264, vaseline in corresponding parts by weight, fully mixing to form the first mixture, and banburying the first mixture, during the banburying process, adding heavy calcium carbonate, accelerator and zinc oxide in corresponding parts by weight, fully banburying to form the second mixture;

[0055] S2, natural rubber layer 1 rubber mixing, sheet production: add the corresponding parts by weight of sulfur to the second mixture obtained in step S1 for mixing. And regular natural rubber film;

[0...

Embodiment 2-6

[0058] Embodiment 2-6: Concave natural rubber film-coated gasket. The difference from Embodiment 1 is that the components and their corresponding parts by weight are shown in Table 1.

[0059] Components and their corresponding parts by weight in Table 1 Examples 1-6

[0060]

Embodiment 7

[0061] Embodiment 7: Concave natural rubber film-coated gasket. The difference from Embodiment 1 is that all accelerators are accelerators TRA.

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Abstract

The invention discloses a concave natural rubber coated pad and a production technology thereof. The concave natural rubber coated pad comprises a natural rubber layer and a coating layer, the natural rubber layer comprises natural rubber, an accelerator, sulfur, stearic acid, zinc oxide, heavy calcium carbonate, titanium dioxide, iron oxide red, an antioxidant 264 and Vaseline, and the accelerator in the natural rubber layer includes at least one of an accelerator TRA and an accelerator TMTD; and the coating layer includes one of an FEP layer, a PTFE Layer and an ETFE layer. The concave natural rubber coated pad has the advantages of good supporting effect, good puncture resistance and good resilience.

Description

technical field [0001] The invention relates to the technical field of gasket production, more specifically, it relates to a concave natural rubber film-coated gasket and a production process thereof. Background technique [0002] As the sealing part of the detection reagent, the rubber gasket has various specifications and forms, including different rubber types, such as silicone rubber, butyl rubber, etc., each of which has its own advantages. For example, butyl rubber has a good sealing effect, while silicone rubber has a good high temperature resistance effect. [0003] The Chinese patent with application publication number CN106589963A and application publication date of April 26, 2017 discloses a high-temperature-resistant silicone rubber gasket, which is made of the following raw materials in parts by weight: 80-120 parts of methyl vinyl silicone rubber , 5-15 parts of vulcanizing agent, 40-45 parts of reinforcing agent and 10-18 parts of heat-resistant additive, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L7/00C08L91/06C08K13/02C08K5/098C08K3/26C08K3/22C08K5/13C08K5/40B32B25/12B32B25/08B32B33/00B32B38/16B32B38/18B32B38/04B32B38/00B29B7/00B29C35/02B26F1/38
CPCB26F1/38B29B7/002B29C35/02B32B25/08B32B25/12B32B33/00B32B38/00B32B38/04B32B38/162B32B38/1866B32B2038/0076B32B2038/045B32B2307/51B32B2307/558B32B2581/00C08K2003/2241C08K2003/265C08K2201/014C08L7/00C08L91/06C08K13/02C08K5/098C08K3/26C08K3/22C08K5/13C08K5/40
Inventor 朱剑锋
Owner 浙江欧尔赛斯科技有限公司
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