Filling master batch for plastics and preparation method of filling master batch

A technology for filling masterbatches and plastics, which is applied in the field of plastic products. It can solve the problems of limited improvement of the dispersibility of filler masterbatches, and achieve the effects of increasing the activation effect, improving compatibility, and improving dispersibility.

Inactive Publication Date: 2017-11-24
贵州通汇塑料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problem of limited improvement of filler masterbatch dispersibility in the prior art, the purpose of the present invention is to provide a plastic filler masterbatch with good dispersibility and its preparation method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The filling masterbatch in this embodiment is prepared from the following raw materials: 14 kg of polypropylene resin, 80 kg of modified bentonite, 4 kg of polypropylene wax, 3 kg of stearic acid, and 2 kg of silane coupling agent.

[0029] Wherein, the preparation method of modified bentonite is as follows:

[0030] Mix dodecyltrimethylammonium chloride and deionized water evenly, adjust the pH of the mixed solution to 7 with NaOH solution, then add 1000 mesh sodium bentonite, stir and react for 60 minutes, after the reaction is completed, filter the reaction solution and dry the filter residue After that, the modified bentonite is obtained; the mass ratio of bentonite and dodecyltrimethylammonium chloride added is 1:0.04, the solid-liquid ratio of bentonite and deionized water is 8g / mL, and the reaction temperature is 80 ~85°C.

[0031] The preparation method of present embodiment filling masterbatch is as follows:

[0032] (1) Heat the high-speed mixer to 180°C and...

Embodiment 2

[0038] The filler masterbatch in this embodiment is prepared from the following raw materials: 16 kg of polypropylene resin, 84 kg of modified bentonite, 5 kg of polypropylene wax, 4 kg of stearic acid, and 2.2 kg of silane coupling agent.

[0039] Wherein, the preparation method of modified bentonite is as follows:

[0040] Mix dodecyltrimethylammonium chloride and deionized water evenly, adjust the pH of the mixed solution to 8 with NaOH solution, then add 2000 mesh sodium bentonite, stir and react for 60 minutes, after the reaction is completed, filter the reaction solution and dry the filter residue After that, the modified bentonite is obtained; wherein the mass ratio of bentonite and dodecyltrimethylammonium chloride added is 1:0.05, the solid-liquid ratio of bentonite and deionized water is 9g / mL, and the reaction temperature is 80 ~85°C.

[0041] The preparation method of present embodiment filling masterbatch is as follows:

[0042] (1) Heat up the high-speed mixer ...

Embodiment 3

[0048] The filler masterbatch in this embodiment is prepared from the following raw materials: 20 kg of polypropylene resin, 90 kg of modified bentonite, 8 kg of polypropylene wax, 5 kg of stearic acid, and 2.4 kg of silane coupling agent.

[0049] Wherein, the preparation method of modified bentonite is as follows:

[0050] Mix dodecyltrimethylammonium chloride and deionized water evenly, adjust the pH of the mixed solution to 8 with NaOH solution, then add 2000 mesh sodium bentonite, stir and react for 70 minutes, after the reaction is completed, filter the reaction solution and dry the filter residue After that, the modified bentonite is obtained; the mass ratio of bentonite and dodecyltrimethylammonium chloride added is 1:0.07, the solid-liquid ratio of bentonite and deionized water is 10g / mL, and the reaction temperature is 80 ~85°C.

[0051] The preparation method of present embodiment filling masterbatch is as follows:

[0052] (1) Heat the high-speed mixer to 200°C a...

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Abstract

The invention discloses a filling master batch for plastics and a preparation method of the filling master batch. The filling master batch is prepared from the following raw materials in parts by weight: 14 to 20 parts of polypropylene resin, 80 to 90 parts of modified bentonite, 4 to 8 parts of polypropylene wax, 3 to 5 parts of stearic acid and 2 to 2.4 parts of a silane coupling agent. The preparation method comprises the following steps: (1), raising the temperature of a high-speed mixer to 180 to 200 DEG C and then keeping constant temperature for 5 to 10 minutes; (2), pouring the modified bentonite and the silane coupling agent, stirring for 15 to 20 minutes, continuously stirring and then reducing the temperature to 110 to 120 DEG C; (3), pouring the polypropylene wax and stearic acid, continuously stirring for 1 to 2 minutes, then putting the polypropylene resin, carrying out mixed stirring for 4 to 5 minutes, discharging and cooling; (4), extruding the cooled materials and then granulating, thus obtaining the filling master batch for the plastics. According to the filling master batch for the plastics, disclosed by the invention, by adopting the dodecyl trimethyl ammonium chloride modified bentonite, the compatibility of the modified bentonite and carrier resin is improved; the prepared filling master batch is easily dispersed in matrix resin; besides, mechanical properties such as the strength of plastic products are improved.

Description

technical field [0001] The invention belongs to the field of plastic products, and in particular relates to a plastic filler masterbatch and a preparation method thereof. Background technique [0002] Due to its excellent performance and wide range of uses, plastic products have penetrated into every corner of industrial production and people's daily life. With the enhancement of people's awareness of environmental protection and the continuous improvement of the performance requirements of plastic products, the masterbatch formula used to directly prepare plastic products is also in the process of continuous improvement. Among them, since the modified masterbatch filled with inorganic powder entered the market in the early 1980s, due to its low price and excellent performance, it can improve some physical properties of plastic products and replace part of synthetic resins, and its production process is simple. The investment is small and has significant economic and social...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08K9/06C08K9/04C08K3/34C08K5/09C08J3/22
CPCC08L23/12C08J3/226C08J2323/12C08J2423/12C08K2201/003C08L2205/025C08K9/06C08K9/04C08K3/346C08K5/09
Inventor 王鹏
Owner 贵州通汇塑料科技有限公司
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