Folding-resistant polypropylene composite material and preparation method for same

A composite material and polypropylene technology, which is applied in the field of folding-resistant polypropylene composite materials and its preparation, can solve the problems of poor folding resistance of polypropylene, achieve excellent rigidity, high heat resistance, and improve the effect of folding resistance

Inactive Publication Date: 2014-05-28
JIANGSU KINGFA SCI & TECH ADVANCED MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the deficiencies in the above-mentioned prior art, the present invention provides a folding-resistant polypropylene composite material and its preparation method. The polypropylene composite material solves the problem of poor folding resistance of polypropylene due to low temperature and mineral filling. question

Method used

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  • Folding-resistant polypropylene composite material and preparation method for same
  • Folding-resistant polypropylene composite material and preparation method for same
  • Folding-resistant polypropylene composite material and preparation method for same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] 98.0 kg of polypropylene PP S700, 0.1 kg of phenolic heat stabilizer Irganox 1010 (CIBA company), 0.1 kg of processing aid calcium stearate, and 1.8 kg of ExxonMobil metallocene elastomer VM6202 at an aspect ratio of 1: Melt, mix and disperse in a 40 twin-screw extruder, extrude at 170°C, extrude and granulate, and finally obtain product A. The properties of product A are shown in Table 1:

[0019] Table 1 Product A performance

[0020] performance

Embodiment 2

[0022] 84.5 kg of polypropylene PP T30S, 0.3 kg of phenolic heat stabilizer Irganox 1010 (CIBA company), 0.2 kg of processing aid calcium stearate, 5.0 kg of ExxonMobil metallocene elastomer VM6102, and 10.0 kg of talcum powder were added to the Melt, mix and disperse in a twin-screw extruder with a diameter ratio of 1:40, extrude at a temperature of 200°C, extrude and granulate, and finally obtain product B. The properties of product B are shown in Table 2:

[0023] Table 2 Product B performance

[0024] performance

Embodiment 3

[0026] 71.0 kg of polypropylene PP BX3800, 0.5 kg of phenolic heat stabilizer Irganox 1010 (CIBA company), 0.5 kg of processing aid calcium stearate, 8.0 kg of ExxonMobil metallocene elastomer VM3980, and 20.0 kg of talcum powder were added to the Melt, mix and disperse in a twin-screw extruder with a diameter ratio of 1:40, extrude at a temperature of 200°C, extrude and granulate, and finally obtain product C. The properties of product C are shown in Table 3:

[0027] Table 3 Product C performance

[0028] performance

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Abstract

The invention discloses a folding-resistant polypropylene composite material and a preparation method for the same. According to the composite material, at least one of homopolymerized propylene and copolymerized propylene with melt flow rate of 0.01 to 100g / 10min is adopted as a resin substrate, and a metallocene elastomer with melt flow rate of 0.5 to 100g / 10min and propylene content of 80 to 90 weight percent is adopted as a toughening agent, so that the folding resistance of the polypropylene under low-temperature and mineral-filled conditions is improved, and the obtained composite material has high rigidity, high heat resistant, extremely high breaking elongation, high folding resistance, tensile strength of more than or equal to 27MPa, bending modulus of more than or equal to 1,500MPa, notch impact strength of more than or equal to 5KJ / m<2> at normal temperature (23 DEG C), breaking elongation of more than or equal to 200 percent, heat distortion temperature of more than or equal to 110 DEG C and minus 20 DEG C hinge (0.5mm) folding times of more than or equal to 106, and is applied to an automotive interior part with a hinge structure such as an automotive fuse box.

Description

technical field [0001] The invention relates to a folding-resistant polymer composite material, in particular to a folding-resistant polypropylene composite material and a preparation method thereof. The composite material is suitable for automobile fuse boxes and other automobile parts with hinge structures. Background technique [0002] Polypropylene (PP), commonly known as pleated glue, has excellent folding resistance, but its folding resistance rapidly decreases or even disappears under low temperature conditions and when it is filled with minerals. At present, automobile parts with hinge structures such as automobile fuse boxes are mainly prepared by injection molding of low-cost mineral-filled polypropylene compounds. Folding-resistant polypropylene composites have become the focus of current research. Contents of the invention [0003] In order to overcome the deficiencies in the above-mentioned prior art, the present invention provides a folding-resistant polypro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L23/14C08K13/02C08K3/26C08K3/34C08K3/40C08K3/30
CPCC08L23/12C08L23/14C08L2205/025C08K13/02C08K5/098C08K3/34C08K2003/265
Inventor 孙刚周英辉李国明程文超李欣李志平陈延安丁超罗忠富
Owner JIANGSU KINGFA SCI & TECH ADVANCED MATERIALS CO LTD
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