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Production method of filled masterbatch formed through plasticization

A production method and technology for filling master batches, which are applied in the field of master batch manufacturing combined with inorganic powder and polymer materials, can solve the problems affecting the quality of filling master batches, high equipment requirements, material degradation, etc., and achieve shortening of high-strength shearing. Thermal history, improved plasticizing effect, reduced degradation effect

Inactive Publication Date: 2012-06-20
HECHANG GUANGXI CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, this process method requires high equipment, high energy consumption, and low output, and the high-intensity plasticizing and mixing effect is likely to cause material degradation and discoloration, which affects the quality of the filler masterbatch.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Materials taken by weight: calcium carbonate 800 mesh 120kg, low-density polyethylene 8kg, linear low-density polyethylene 4kg, paraffin 6kg, stearic acid 1kg.

[0032] Proceed as follows:

[0033] (1) Add 8kg of low-density polyethylene, 4kg of linear low-density polyethylene and 6kg of paraffin into the high-speed mixer, start stirring, and stir for 2 minutes. Down extrusion granulation, as spare material;

[0034] (2) Add 120kg of calcium carbonate into the high-speed mixer, stir and heat to 110°C, exhaust, then add 1kg of stearic acid into the high-speed mixer, stir for 15 minutes, and finally add the spare material prepared in step (1) into the high-speed Stir in the mixer for 4 minutes, discharge and crush to obtain the mixture;

[0035] (3) Add the mixture obtained in step (2) into a co-rotating twin-screw extruder with an aspect ratio of 36, extrude and granulate at 160°C, cool, and screen to obtain the finished product.

[0036] During the granulation proces...

Embodiment 2

[0042] Materials taken by weight: calcium carbonate 1250 mesh 120kg, low density polyethylene 8kg, linear low density polyethylene 5kg, polyethylene wax 6kg, stearic acid 2kg, titanate coupling agent 1kg.

[0043] Proceed as follows:

[0044] (1). Add 8kg of low-density polyethylene, 5kg of linear low-density polyethylene, 6kg of polyethylene wax, and 2kg of stearic acid into the high-speed mixer, start stirring, and stir for 2 minutes. Add the obtained mixture to the co-rotating twin-screw In the extruder, extrude and granulate at 120°C as a spare material;

[0045] (2). Add 120kg of calcium carbonate into the high-speed mixer and stir, heat to 100°C, exhaust, and then spray 1kg of titanate coupling agent while stirring. After spraying, the high-speed mixer continues to stir for 10 minutes, and then Add the material prepared in step (1) into the high mixer and stir for 5 minutes, then discharge;

[0046] (3) Add the mixture obtained in step (2) into a co-rotating twin-sc...

Embodiment 3

[0052] In parts by weight: barium sulfate 2500 mesh 120kg, low density polyethylene 12kg, linear low density polyethylene 8kg, polyethylene wax 6kg, stearic acid 2kg, silane coupling agent 2kg.

[0053] Proceed as follows:

[0054] (1) Add 12kg of low-density polyethylene, 8kg of linear low-density polyethylene, 6kg of polyethylene wax, and 1kg of stearic acid into the high-speed mixer, start stirring, and stir for 2 minutes, then add the obtained mixture to the co-rotating twin-screw extruder In the machine, it is extruded and granulated at 160°C as a spare material;

[0055] (2) Add 120kg of barium sulfate into the high-speed mixer and stir and heat to 100°C, exhaust, and then spray 1kg of silane coupling agent while stirring. After spraying, the high-speed mixer continues to stir for 12 minutes, and then add 1kg of stearin Sour, stir for 5 minutes, and finally add the spare material in step (1) into the high-speed mixer and stir for 6 minutes, discharge and crush to obt...

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Abstract

The invention relates to a production method of a filled masterbatch formed through plasticization. The filled masterbatch is composed of the following components in parts by weight: 5 to 16 parts of carrier resin, 3 to 8 parts of dispersant, 75 to 90 parts of inorganic filler, and 0.5 to 2 parts of surface-active agent. The production method comprises the following steps: stirring and mixing carrier resin and dispersants at a high speed, extruding and granulating the mixture of the carrier resin and dispersants by a co-rotating twin screw extrusion machine, and considering the mixture of the carrier resin and the dispersants as a standby material; stirring and mixing inorganic fillers, the surface-active agent and the standby material at a high speed, discharging and breaking the mixture of the inorganic fillers, the surface-active agent and the standby material, extruding and granulating the mixture of the inorganic fillers, the surface-active agent and the standby material by a co-rotating twin screw extrusion machine with the slenderness ratio: 32 to 48, cooling, and screening, finally obtaining the filled masterbatch. The packed masterbatch made through the production method is good in plasticization, the dispersion effect of the inorganic fillers is good, the whiteness is high, the requirement to the equipment is low, the energy consumption is low, and the yield is high.

Description

technical field [0001] The invention belongs to the technical field of masterbatch manufacturing combined with inorganic powder and polymer materials, and in particular relates to a production method of plasticized and filled masterbatch. Background technique [0002] The application of filler masterbatch in plastics can reduce the raw material cost of plastic products, save synthetic resin, and also have the characteristics of improving the physical properties of plastic products and improving processing efficiency. Products, an important emerging industry group that combines inorganic mineral fillers, raw and auxiliary materials, processing aids and special machinery manufacturing, is also one of the most active and fastest-growing industries in the plastics processing industry. [0003] Filler masterbatch is a kind of material that is difficult to process. In order to achieve complete plasticization and good dispersion of inorganic fillers, high requirements are placed on...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L23/08C08K13/06C08K9/04C08K9/06C08K3/26C08K3/34C08K3/30B29B9/06B29C47/92B29C48/92
CPCB29C48/04B29C48/40B29C48/92B29C2948/92704B29C2948/92895
Inventor 何和智
Owner HECHANG GUANGXI CHEM
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