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Polypropylene foaming material, production and preparation method of product

A foamed material and polypropylene technology, which is applied in the field of polymer foamed material production, can solve problems such as unfavorable pressure control in the melt extrusion process, and achieve the effects of avoiding easy cross-linking, reducing production costs and being easy to control.

Inactive Publication Date: 2014-04-30
SHANDONG ZHONGHONG PLASTIC IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, adding a gear pump before the die increases the process complexity of the foamed sheet, which is not conducive to the pressure control of the melt extrusion process

Method used

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  • Polypropylene foaming material, production and preparation method of product
  • Polypropylene foaming material, production and preparation method of product
  • Polypropylene foaming material, production and preparation method of product

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Raw material components: component (A) is 100 parts of homopolymerized PP powder, produced by Shandong Kairi Chemical Co., Ltd., the brand is 045, MFR 3.0g / 10min; component (B) is 10 parts of ethylene acrylic acid copolymer, acrylic acid Content 11%; Component (C) is 1 part of superfine zinc oxide; Component (D) is 0.08 part of dicumyl peroxide; Component (E) is 0.15 part of four [β-(3,5-di tert-Butyl-4-hydroxyphenyl) propionate] pentaerythritol, dilaurate thiodipropionate 0.3 part; component (F) is 0.5 part glyceryl monostearate; component (G) is 0.4 part blowing agent AC.

[0039]Leather material: polypropylene copolymer, produced by Qilu Petrochemical Company, grade EPS30R, MFR 2.0g / 10min.

[0040] The structure and function of the single-screw extruder: The single-screw extruder B used has a screw diameter of 90mm, a length-to-diameter ratio of 33:1, frequency conversion speed regulation, and 5-stage heating and temperature control. Single screw A, C screw diamete...

Embodiment 2

[0051] Raw material components: component (A) is 100 parts of homopolymerized PP powder, produced by Shandong Kairi Chemical Co., Ltd., brand is 045, MFR 3.0g / 10min; component (B) is 10 parts of ethylene acrylic acid copolymer, acrylic acid content 11%; component (C) is 1 part of superfine zinc oxide; component (D) is 0.12 part of dicumyl peroxide; component (E) is 0.15 part of four [β-(3,5- tert-Butyl-4-hydroxyphenyl) propionate] pentaerythritol, 0.3 part dilaurate thiodipropionate; component (F) is 0.5 part glyceryl monostearate; component (G) is 0.4 part blowing agent AC.

[0052] Extruder B temperature setting: 170°C, 192°C, 197°C, 205°C, 195°C

[0053] Mold temperature, 180°C, 178°C, 178°C, 178°C, 178°C, 178°C, 180°C

[0054] The mode of operation is the same as in Example 1.

Embodiment 3

[0056] Raw material components: component (A) is 100 parts of homopolymerized PP powder, produced by Shandong Kairi Chemical Co., Ltd., the brand is 045, MFR 3.0g / 10min; component (B) is 15 parts of ethylene acrylic acid copolymer, acrylic acid content 11%; component (C) is 1 part of superfine zinc oxide; component (D) is 0.15 part of dicumyl peroxide; component (E) is 0.15 part of four [β-(3,5- tert-Butyl-4-hydroxyphenyl) propionate] pentaerythritol, 0.3 part dilaurate thiodipropionate; component (F) is 0.5 part glyceryl monostearate; component (G) is 0.4 part blowing agent AC.

[0057] Extruder B temperature setting: 170°C, 188°C, 195°C, 198°C, 190°C

[0058] Mold temperature, 177°C, 175°C, 175°C, 175°C, 175°C, 175°C, 177°C

[0059] All the other operating modes are the same as in Example 1.

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Abstract

The invention relates to a polypropylene foaming material, which comprises the following raw materials, by weight: 100% of polypropylene (A), 1-30% of an ethylene-acrylic acid copolymer (B), 0.5-5% of an accelerator (C), 0.01-1% of an initiator (D), 0.1-0.5% of an antioxidant (E), 0.1-2% of a lubricant (F), and 0.2-2.0% of a foaming agent (G). According to the present invention, the polypropylene foaming plate produced by using the polypropylene foaming materials is extruded and molded by using a one-step method, wherein the method is simple and convenient, the production efficiency is improved, and the production cost is reduced; and the ethylene-acrylic acid polymer is adopted as the polypropylene grafting monomer, such that the disadvantage of easy cross-linking of the conjugated diene compound is avoided, and the melt has characteristics of high strength and excellent ductility.

Description

[0001] The invention belongs to the technical field of production of polymer foaming materials, and in particular relates to the preparation method of polypropylene foaming materials, products and products. The invention discloses a one-step extrusion molding polypropylene foaming material which simultaneously completes the foaming process with melt strength of polypropylene and a preparation method thereof. Background technique [0002] Foam plastic has the advantages of light weight, heat insulation, sound insulation, cushioning, and high specific strength. Therefore, it is widely used in the fields of packaging, industry, agriculture, transportation, military industry, aerospace industry and daily necessities. Since the 1990s, the development of foamed plastics in China has been very rapid. The main varieties are polyurethane (PU) soft and rigid foamed plastics, polystyrene (Ps) and polyolefin foamed materials. However, during the foaming process of PU, harmful isocyan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L23/14C08L23/08C08K13/02C08J9/10B32B27/06B32B27/32B29C47/06B29C47/92B29C47/60B29C48/625B29C48/875B29C48/92
CPCB29C48/92B32B27/06B32B27/32C08J9/103C08L23/12C08L23/14B32B2250/03B32B2305/022B29C2948/92704B29C2948/9258C08L2205/03C08J2323/14C08J2323/12C08L23/0869C08K13/02B29C48/875B29C48/397B29C48/625B29C2948/92552B29C2948/9259B29C2948/92923
Inventor 张庆录王加亮徐建明田相松王世修杜鹏杨秀涛
Owner SHANDONG ZHONGHONG PLASTIC IND