Internal mixer cleaning material and preparation method thereof

A technology of internal mixer and cleaning material, which is applied in the field of internal mixer cleaning material and its preparation, can solve the problems of yellowing and blackening, and achieve the effects of easy demoulding, convenient and quick cleaning, and cost reduction

Inactive Publication Date: 2018-07-27
HEFEI GENIUS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the internal mixer is heated without load, the accumulated material near the heating block at the bottom of the internal mixing hopper will turn yellow and black due to high temperature aging and degradation, which will lead to black spots, carbides and other problems in subsequent products

Method used

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  • Internal mixer cleaning material and preparation method thereof
  • Internal mixer cleaning material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Weigh 15 parts of PP, 85 parts of ceramic powder, 0.2 part of antioxidant 1010, and 0.4 part of calcium stearate according to the mass ratio; put the weighed raw materials into a banburying mixer with a volume of 50L for banburying, banburying The set temperature of the machine is 20°C, and the banburying time is 30 minutes; the mass-mixed material is transported to the conical twin-single-screw extruder with a screw diameter of 180cm, and is melted, mixed and extruded by the single-screw extruder , and then pelletized to make cleaning material for internal mixer.

Embodiment 2

[0028] Weigh 15 parts of PE according to the mass ratio, weigh 85 parts of illite powder (Guangdong Tiangao Mining Industry), 0.1 part of antioxidant dioctadecyl thiodipropionate, and 0.3 part of zinc stearate; weigh the raw materials Put it into the internal mixer with a volume of 150L for internal mixing. The temperature of the internal mixer is set at 25°C, and the internal mixing time is 15 minutes; In the screw extruder, it is melted, kneaded and extruded by a single-screw extruder, and then pelletized to make cleaning material for the internal mixer.

Embodiment 3

[0030] Weigh 20 parts of PP, 80 parts of corundum powder, 0.1 part of antioxidant 1010, 0.1 part of dioctadecyl thiodipropionate, and 0.2 part of oleic acid according to the mass ratio; Banbury mixing in a mixer with a volume of 250L, the set temperature of the mixer is 30°C, and the mixing time is 20 minutes; the mixed dough is transported to the cone twin-single-screw extrusion with a screw diameter of 180cm In the machine, it is melted, kneaded and extruded by a single-screw extruder, and then pelletized to make cleaning material for the internal mixer.

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Abstract

The invention discloses an internal mixer cleaning material and a preparation method thereof and belongs to the technical field of high molecular materials. The internal mixer cleaning material is prepared from, by weight, 10-20 parts of basic resin, 80-90 parts of inorganic powder, 0.1-0.2 parts of an antioxidant, and 0.2-0.4 parts of a demolding agent. The internal mixer cleaning material is prepared from wear-resistant mineral fillers, wherein low-melt-index and high-viscosity resin is used as a basic material, so that the internal mixer cleaning material can effectively clean various parts, even dead angles, in an internal mixer, especially the yellow and black accumulated materials, formed by high-temperature aging and degradation, nearby a heating piece when the internal mixer is started for the first time after shutdown. The cleaning material can effectively remove residual materials and black stains in the internal mixer and effectively guarantee products to be clean and free of black stains.

Description

technical field [0001] The invention relates to the technical field of modified materials, in particular to an internal mixer cleaning material and a preparation method thereof. Background technique [0002] With the increasing development of the plastic processing industry, problems in the processing process are also emerging. Internal mixers are widely used in rubber-plastic, plastic, rubber-plastic blending, etc. [0003] Due to the structural characteristics, the cleaning of the internal mixer has always been a problem. The internal mixing rotor, the dead corner of the internal mixing hopper and other places often accumulate the previous materials. The current practice is often to directly carry out the next pot of internal mixing, which will directly lead to the formula structure Changes can affect the accuracy of the data. Another method is to scrape directly with a spatula, but this method is inefficient, laborious, and has potential safety hazards; moreover, the bot...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L23/06C08K13/02C08K3/013C08K5/098C08K5/09C08K3/22C08K3/26C08K3/34C08K5/524B29B9/06
CPCB29B9/06C08K3/00C08K3/22C08K3/26C08K3/34C08K5/09C08K5/098C08K13/02C08K2003/2227C08K2003/265C08L23/06C08L23/12C08K5/524
Inventor 杨桂生廖雄兵朱敏计娉婷
Owner HEFEI GENIUS NEW MATERIALS
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