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A plastic extruder or injection molding machine screw cleaning agent

A technology for injection molding machine screws and plastic extruders, applied in the field of screw cleaners and sleeves, can solve the problems of high price, time-consuming cost, and ineffective cleaning effect, and achieve the effect of improving cleaning efficiency

Active Publication Date: 2019-08-23
SHANGHAI WEIXING NOVEL BUILDING MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] During the processing of plastic extrusion and injection molding, when it comes to switching colors, it is often time-consuming and costly to wash with conventional raw materials. For some easily degradable resins, if they stay in the machine for a long time , the resin is easy to form a stubborn carbonized film on the surface of the screw and barrel, and the conventional cleaning scheme cannot achieve the cleaning effect at all. Although the imported cleaning agent is effective, its use on general-purpose plastics is limited due to its high price. It is often necessary to disassemble the machine for cleaning

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A plastic extruder or injection molding machine screw cleaning agent, the mass percentage of raw material components is:

[0023] Hard cleaners 25%

[0024] Interface cleaner 5%

[0025] Base resin 70%

[0026] The hard cleaning agent is glass fiber; generally, it is short fiber.

[0027] The interface cleaning agent is PPA, specifically a fluoride processing aid.

[0028] The base resin is PP, generally the same raw material used in production.

Embodiment 2

[0030] A plastic extruder or injection molding machine screw cleaning agent, the mass percentage of raw material components is:

[0031] Hard cleaners 28%

[0032] Interface cleaner 6%

[0033] Base resin 66%

[0034] The hard cleaning agent is glass fiber; generally, it is short fiber.

[0035] The interface cleaning agent is PPA, specifically a fluoride processing aid.

[0036] The base resin is PE, which is generally the same raw material used in production.

Embodiment 3

[0038] A plastic extruder or injection molding machine screw cleaning agent, the mass percentage of raw material components is:

[0039] Hard cleaner 30%

[0040] Interface cleaner 7%

[0041] Base resin 63%

[0042] The hard cleaning agent is glass fiber; generally, it is short fiber.

[0043] The interface cleaning agent is PPA, specifically a fluoride processing aid.

[0044] The base resin is PE-RT, generally the same raw material used in production.

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PUM

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Abstract

The invention relates to a cleaning agent for a screw rod of a plastic extruding machine or an injection molding machine. The cleaning agent is used for cleaning a machine barrel and a screw rod of the extruding machine or the injection molding machine. The cleaning agent consists of the following components: 25 to 40 percent of a hard cleaning agent glass fiber, 5 to 10 percent of an interface cleaning agent PPA and 50 to 70 percent of matrix resin. The cleaning agent provided by the invention has the advantages of cleaning various adhering substances on the surface of the machine barrel and the screw rod quickly, strongly and efficiently, and greatly improving the cleaning efficiency, and is low in cost.

Description

technical field [0001] The invention relates to the technical field of polymer material molding and processing, in particular to a sleeve and screw cleaning agent for extruders or injection molding machines. [0002] technical background [0003] During the processing of plastic extrusion and injection molding, when it comes to switching colors, it is often time-consuming and expensive to wash with conventional raw materials. For some easily degradable resins, if they stay in the machine for a long time (such as starting and stopping) , the resin is easy to form a stubborn carbonized film on the surface of the screw and barrel, and the conventional cleaning scheme cannot achieve the cleaning effect at all. Although the imported cleaning agent is effective, its use on general-purpose plastics is limited due to its high price. It is often necessary to disassemble the machine for cleaning. Contents of the invention [0004] The invention provides a brand-new screw cleaning ag...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/12C08L23/06C08L23/20C08L27/12C08L71/00C08K7/14B29C45/17B29C48/08
CPCB29C45/1753B29C48/2715C08L23/06C08L23/12C08L23/20C08L2205/025C08L2205/035C08L27/12C08K7/14C08L71/00
Inventor 谢明星薛冠
Owner SHANGHAI WEIXING NOVEL BUILDING MATERIAL
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