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Production method of ABS mixing auxiliary bag

A production method and technology of mixing additives, which are applied in the field of ABS mixing additives, can solve the problems of large fluctuations in the addition of additives, safety risks, and difficulties in unloading antioxidant diphosphite materials. Achieve the effects of reducing kinetic energy consumption and equipment maintenance costs, simplifying additive addition process, and improving melt flow rate

Inactive Publication Date: 2017-01-04
贾绍铭
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1 Phosphite antioxidants, ethylene bisstearamide, and magnesium stearate are in the form of flakes, spherical granules, and powders, respectively; ABS resin and SAN resin are in the form of powders and columns, and the particle shapes are quite different. The amount of entrainment in the post-air delivery process is large, and the loss of materials is large, resulting in large fluctuations in the addition of additives between batches of materials, which affects the stability of ABS product application indicators;
[0004] 2 There is a lot of dust at the operation site, which poses safety risks and personal health hazards;
[0005] 3 The three kinds of additives are weighed and fed separately, and manual operation is prone to insufficient proportioning accuracy or misoperation;
[0006] 4 It is difficult to feed the antioxidant diphosphite material, and it is easy to block the material pipe

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Embodiment 1. The process steps of this embodiment are as follows:

[0032] 1) Powder transportation and powder measurement

[0033] The three additives, 85 kg of diphosphite, 760 kg of ethylene bisstearamide, and 155 kg of magnesium stearate, were accurately measured by a weightless feeder, and then added to the vertical ribbon high mixer to fully mix;

[0034] 2) Powder mixing

[0035] The diphosphite, ethylene bis-stearamide, and magnesium stearate measured in the proportions of step 1) are mixed in a vertical ribbon high mixer. During mixing, the temperature is controlled at 40-45°C and the stirring speed is 24r / m, mixing time 3 hours;

[0036] 3) Extrusion

[0037] The materials obtained in step 2) are fed into the weightlessness meter while stirring by the vertical spiral ribbon high-mixer. After the weightlessness meter is measured, the materials are added to the screw extruder through the feeder and added to the screw extruder The amount of material is controlled at 0.5...

Embodiment 2

[0042] Embodiment 2. The process steps of this embodiment are as follows:

[0043] 1) Powder transportation and powder measurement

[0044] The three additives, 240 kg of diphosphite, 1480 kg of ethylene bis-stearamide, and 280 kg of magnesium stearate, are accurately measured by a weightless feeder, and then added to the vertical ribbon high mixer to fully mix;

[0045] 2) Powder mixing

[0046] The diphosphite, ethylene bisstearamide, and magnesium stearate measured in the proportions of step 1) are mixed in the vertical ribbon high mixer. When mixing, the temperature is controlled at 30-35°C, and the stirring speed is 30r / m, mixing time 5 hours;

[0047] 3) Extrusion

[0048] The materials obtained in step 2) are fed into the weightlessness meter while stirring by the vertical spiral ribbon high-mixer. After the weightlessness meter is measured, the materials are added to the screw extruder through the feeder and added to the screw extruder The amount of material is controlled at 1...

Embodiment 3

[0053] Embodiment 3, the process steps of this embodiment are as follows:

[0054] 1) Powder transportation and powder measurement

[0055] The three additives, 150 kg of diphosphite, 1125 kg of ethylene bisstearic acid amide, and 225 kg of magnesium stearate, are accurately metered through a loss-in-weight feeder and then added to the vertical ribbon high-mixer to fully mix;

[0056] 2) Powder mixing

[0057] The diphosphite, ethylene bis-stearamide, and magnesium stearate measured according to the ratio of step 1) are mixed in the vertical ribbon high mixer. During mixing, the temperature is controlled at 35-40°C and the stirring speed is 27r / m, mixing time 4 hours;

[0058] 3) Extrusion

[0059] The materials obtained in step 2) are fed into the weightlessness meter while stirring by the vertical spiral ribbon high-mixer. After the weightlessness meter is measured, the materials are added to the screw extruder through the feeder and added to the screw extruder The amount of materia...

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Abstract

The invention relates to a production method of an ABS mixing auxiliary bag. The production method is characterized by including the following steps that diphosphite, ethylene bis stearamide and magnesium stearate are accurately metered through a weightlessness feeder according to the mass ratio and added into a vertical helix ribbon high-speed mixer, and the temperature, stirring rotating speed and mixing time are controlled in the mixing process; the mixed material is added into a screw extruder through the feeder, and the material amount in the screw extruder and the temperature in the screw extruder are controlled; nitrogen air cooling is carried out on the extruded product, and the extruded product is conveyed into a vacuum packager to be packaged after being cooled to obtain the auxiliary bag. The auxiliary bag, ABS powder and SAN are mixed and granulated, performance indexes such as whiteness, yellowness, impact strength, melt index, tensile strength and bending strength of the prepared ABS are tested, and it is verified that the auxiliary bag is high in dispersion uniformity.

Description

Technical field [0001] The invention relates to the production of ABS, in particular to an auxiliary agent for ABS mixing, and is a production method of an ABS mixing auxiliary agent package. Background technique [0002] In ABS production, ABS resin and SAN resin need to be mixed. Before ABS resin and SAN resin are mixed, phosphite antioxidants, ethylene bisstearamide, magnesium stearate and other additives must be mixed with ABS resin. After simple physical mixing with SAN resin, the ABS resin and SAN resin are added in a certain proportion. The prior art production process has the following problems: [0003] 1 Phosphite antioxidants, ethylene bisstearamide, and magnesium stearate are flakes, spherical particles, and powders, respectively. ABS resin and SAN resin are powders and columns, respectively, and the particle shapes are quite different. There is a large amount of entrainment in the post-air delivery process, and large material loss, which causes large fluctuations in t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L55/02C08K5/524C08K5/20C08K5/098
CPCC08L55/02C08K5/098C08K5/20C08K5/524
Inventor 贾绍铭
Owner 贾绍铭
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