A coating for the inner wall of the centrifugal drum of a centrifuge

An in-drum, centrifuge technology, applied in the field of centrifuges, can solve the problems of limited corrosion resistance and friction resistance, long contact time of the inner wall of the centrifugal drum, and large friction and impact force, and achieves excellent corrosion resistance and chemical resistance. performance, good chemical inertness, low coefficient of friction effect

Active Publication Date: 2019-07-12
蚌埠市宏大制药机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the field of pharmacy, when various liquid-phase drugs are centrifuged, they have a long contact time with the inner wall of the centrifugal drum, and the friction and impact force is large. However, the corrosion resistance and friction resistance of the paint on the inner wall of the centrifugal drum in the prior art are limited. After working for a long time, the paint on the inner wall of the centrifugal drum is prone to peeling off. After the paint falls off, it is mixed with liquid phase drugs, which greatly affects its quality.

Method used

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  • A coating for the inner wall of the centrifugal drum of a centrifuge
  • A coating for the inner wall of the centrifugal drum of a centrifuge

Examples

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Effect test

Embodiment 1

[0014] A paint for the inner wall of a centrifugal drum of a centrifuge, including organic solvents, auxiliary components, and the following components in parts by weight: epoxy resin 1009 18-42, blocked isocyanate 3175 3-8, fluorocarbon emulsion 10-20, nano Sericite composite particles 0.4-0.6.

[0015] The epoxy equivalent of the epoxy resin 1009 is 2100-2200g / eq.

[0016] The unblocking temperature of the blocked isocyanate 3175 is ≤165°C.

[0017] The organic solvent is one or a combination of n-butanol and propylene glycol methyl ether, and the added weight of the organic solvent is 40-80.

[0018] The auxiliary agent is a film-forming auxiliary agent, and the film-forming auxiliary agent is dodecyl alcohol ester, and the added weight part of the auxiliary agent is 0.5-0.8.

[0019] The preparation method of the nano-sericite composite particles is as follows: a certain amount of nano-sericite is mixed with water to prepare a nano-sericite aqueous suspension with a mass...

Embodiment 2

[0022] A paint for the inner wall of a centrifugal drum of a centrifuge, including organic solvents, auxiliary components, and the following components in parts by weight: epoxy resin 1009 18-42, blocked isocyanate 3175 3-8, fluorocarbon emulsion 10-20, nano Sericite composite particles 0.4-0.6.

[0023] The epoxy equivalent of the epoxy resin 1009 is 2100-2200g / eq.

[0024] The unblocking temperature of the blocked isocyanate 3175 is ≤165°C.

[0025] The organic solvent is one or a combination of n-butanol and propylene glycol methyl ether, and the added weight of the organic solvent is 40-80.

[0026] The auxiliary agent is a film-forming auxiliary agent, and the film-forming auxiliary agent is dodecyl alcohol ester, and the added weight part of the auxiliary agent is 0.5-0.8.

[0027] The preparation method of the nano-sericite composite particles is as follows: a certain amount of nano-sericite is mixed with water to prepare a nano-sericite aqueous suspension with a mass...

Embodiment 3

[0030] A paint for the inner wall of a centrifugal drum of a centrifuge, including organic solvents, auxiliary components, and the following components in parts by weight: epoxy resin 1009 18-42, blocked isocyanate 3175 3-8, fluorocarbon emulsion 10-20, nano Sericite composite particles 0.4-0.6.

[0031] The epoxy equivalent of the epoxy resin 1009 is 2100-2200g / eq.

[0032] The unblocking temperature of the blocked isocyanate 3175 is ≤165°C.

[0033] The organic solvent is one or a combination of n-butanol and propylene glycol methyl ether, and the added weight of the organic solvent is 40-80.

[0034] The auxiliary agent is a film-forming auxiliary agent, and the film-forming auxiliary agent is dodecyl alcohol ester, and the added weight part of the auxiliary agent is 0.5-0.8.

[0035] The preparation method of the nano-sericite composite particles is as follows: a certain amount of nano-sericite is mixed with water to prepare a nano-sericite aqueous suspension with a mass...

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Abstract

The invention discloses an inner wall coating for a centrifugal barrel of a centrifuge. The inner wall coating comprises organic solvents, auxiliary components, epoxy resin 1009, enclosed isocyanate 3175, fluorocarbon emulsion and nano-sericite composite particles. The prepared inner wall coating for the centrifugal barrel of the centrifuge has super-long durability and weather resistance, a coating layer can still keep good color and gloss after 5000-hour artificial accelerated aging resistance test, powdering and shedding are avoided, and the aging resistance of the coating is 5-10 times that of a traditional coating.

Description

technical field [0001] The invention belongs to the technical field of centrifuges, and in particular relates to a coating for the inner wall of a centrifugal drum of a centrifuge. Background technique [0002] A centrifuge is a machine that uses centrifugal force to accelerate the separation of different materials that need to be separated. Centrifuges are widely used in chemical, food, pharmaceutical and other fields. It is mainly divided into two categories: filter centrifuge and decanter centrifuge. The main principle of the filter centrifuge is to accelerate the liquid phase in the solid-liquid mixture in the centrifugal drum through the centrifugal force generated by the high-speed running centrifugal drum (with appropriate filter material), and leave the solid phase in the centrifugal drum. In the centrifugal drum, the effect of separating solids and liquids, or commonly known as dehydration, is achieved. In the field of pharmacy, when various liquid-phase drugs ar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/04C09D127/12C09D5/08C09D5/14C09D7/62
CPCC08K2201/011C09D5/08C09D5/14C09D175/04C08L27/12C08K9/04C08K3/34C08K3/36
Inventor 张莉
Owner 蚌埠市宏大制药机械有限公司
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