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PP flow master batch

A technology of masterbatch and flow, which is applied in the field of masterbatch preparation technology, can solve the problems of toughness, wear resistance and other problems, and achieve the effect of improving toughness, enhancing toughness and tensile strength, and enhancing compatibility

Inactive Publication Date: 2019-08-13
东莞市恒彩塑胶颜料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, in the above-mentioned technologies, although the melt flow rate of polypropylene can be improved, the mechanical properties of the polypropylene thin-walled injection molded product after injection, such as the toughness and wear resistance of the polypropylene thin-walled injection molded product, have serious impacts. certain influence

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] The components and parts by weight of PP flow masterbatch are shown in Table 1.

[0053] The components and parts by weight of light calcium carbonate in PP flow masterbatch are shown in Table 2.

[0054] S1. Weigh the corresponding number of polypropylene resin, initiator and light calcium carbonate and mix and stir for 10 minutes to prepare PP flow masterbatch raw material.

[0055] In this embodiment, the initiator is composed of di-tert-butyl peroxide and tert-butyl hydroperoxide 1:1.2, and di-tert-butyl peroxide adopts di-tert-butyl peroxide from Jiangsu Quanwei Chemical Co., Ltd.; tert-butyl Hydrogen peroxide adopts tert-butyl hydroperoxide from Jiangsu Quanwei Chemical Co., Ltd.

[0056] In this embodiment, the polypropylene resin is the polypropylene resin of Maoming Shihua Dongcheng Chemical Co., Ltd., the model is PP230, and the melt flow rate of the polypropylene resin is 19 g / 10 min.

[0057] Wherein, the light calcium carbonate in step S1 is modified calc...

Embodiment 2

[0069] The difference with embodiment 1 is:

[0070] The components and parts by weight of PP flow masterbatch are shown in Table 1.

[0071] The components and parts by weight of light calcium carbonate in PP flow masterbatch are shown in Table 2.

[0072] In this example, the initiator is composed of di-tert-butyl peroxide and tert-butyl hydroperoxide in a ratio of 1:1.3.

[0073] In this embodiment, the melt flow rate of the polypropylene resin used to prepare the PP flow masterbatch is 24g / 10min.

[0074] The modification method step of the modified calcium carbonate of step S1 is as follows:

[0075] a. Weigh light calcium carbonate in corresponding parts by weight, dry it until the moisture content is below 0.3% by weight, and add it into the reaction kettle.

[0076] b. Add kaolin, mica powder, straw ash, active zinc oxide, fumed silica, methacrylate, polyethylene wax, sodium alkylbenzene sulfonate, glycerol in corresponding parts by weight to the reactor, and heat u...

Embodiment 3

[0083] The difference with embodiment 1 is:

[0084] The components and parts by weight of PP flow masterbatch are shown in Table 1.

[0085] The components and parts by weight of light calcium carbonate in PP flow masterbatch are shown in Table 2.

[0086] In this example, the initiator is composed of di-tert-butyl peroxide and tert-butyl hydroperoxide in a ratio of 1:1.3.

[0087] In this embodiment, the melt flow rate of the polypropylene resin used to prepare the PP flow masterbatch is 27 g / 10 min.

[0088] The modification method step of the modified calcium carbonate of step S1 is as follows:

[0089] a. Weigh light calcium carbonate in corresponding parts by weight, dry it until the moisture content is below 0.3% by weight, and add it into the reaction kettle.

[0090] b. Add kaolin, mica powder, straw ash, active zinc oxide, fumed silica, methacrylate, polyethylene wax, sodium alkylbenzene sulfonate, glycerin to the reaction kettle, heat up to 120°C, keep stirring f...

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Abstract

The invention relates to the technical field of master batch preparation, in particular to a PP flow master batch. The master batch comprises, by weight, 90-100 parts of polypropylene resin, 2.5-7.5 parts of an initiator and 0.5-1.5 parts of light calcium carbonate, wherein the flowing speed of a polypropylene resin melt is 19-27 g / 10 min, and the initiator is composed of di-tert-butyl peroxide and tert-butyl hydroperoxide in the ratio of 1:(1.2-1.5). The master batch has the advantages that the PP flow master batch is applied to polypropylene thin-wall injection molding, the fluidity of the polypropylene melt is improved, and meanwhile, an injection molded polypropylene thin-wall injection molding finished product has good mechanical properties.

Description

technical field [0001] The invention relates to the technical field of masterbatch preparation technology, more specifically, it relates to a PP flow masterbatch. Background technique [0002] Polypropylene resin has good physical properties and formability, and it also has the advantages of good chemical corrosion resistance, no peculiar smell, and non-toxicity. As an environmentally friendly material, polypropylene resin is widely used. [0003] At present, polypropylene thin-walled injection molding products are generally produced by injection molding. However, in the injection molding process, the fluidity of polypropylene resin is insufficient, so larger injection pressure and longer injection molding time are required in the polypropylene injection molding process. Time to complete injection molding of polypropylene. Therefore, the fluidity of polypropylene resin needs to be strengthened. [0004] In order to solve the above-mentioned problems, a method for improvin...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08K13/06C08K9/04C08K9/06C08K9/02C08K3/34C08K3/26C08J3/22B29C48/92B29B9/06
CPCB29B9/06B29C48/92B29C2948/92704C08J3/226C08J2323/12C08J2423/12C08K3/346C08K9/02C08K9/04C08K9/06C08K9/08C08K13/06C08K2003/265
Inventor 梁新龙
Owner 东莞市恒彩塑胶颜料有限公司
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