Polypropylene material for baby carriage main beam and preparing method thereof

A polypropylene material and polypropylene technology, applied in the field of polymer materials, can solve the problems of reducing the rigidity of polypropylene materials, difficulty in meeting requirements, and high prices, and achieve the effects of improving scratch resistance, low production costs, and protecting safety

Inactive Publication Date: 2016-06-08
NANJING JULONG SCI&TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, in order to meet the requirements of high toughness and high elongation, the general modification method is to introduce a large amount of thermoplastic elastomers into polypropylene to increase the toughness and elongation of polypropylene. Acrylic material is inherently rigid and easily deformed
So far, the modified polypropylene materials on the market are still difficult to meet the requirements of the main beam parts of baby carriages, and such parts are still mainly made of metal or expensive engineering plastics

Method used

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  • Polypropylene material for baby carriage main beam and preparing method thereof
  • Polypropylene material for baby carriage main beam and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] 40 parts of copolymerized polypropylene with a melt index of 5g / 10min, 15 parts of high-melt-strength polypropylene with a dispersion coefficient of 4 and a melt strength of 18cN, and 30 parts of high-crystalline copolymerized polypropylene with a crystallinity of 70%. 10100.8 parts of antioxidants, 1681.2 parts of antioxidants, 38080.5 parts of light stabilizers, and 1 part of calcium stearate were put into a high-speed mixer and mixed for 4 minutes to obtain a mixture of the above components; the obtained mixture was added to the main feed hopper In the twin-screw extruder, intermeshing and mixing; at the same time, 11.5 parts of 5000 mesh talc powder is added to the barrel of the twin-screw extruder through the side feed port, after extrusion, drawing, air drying, and granulation Through other procedures, the polypropylene material for the structure of the baby carriage is obtained; among them, the barrel temperature of the twin-screw extruder is zone I: 160°C, zone II...

Embodiment 2

[0037] 44.4 parts of copolymer polypropylene with a melt index of 10g / 10min, 5 parts of high melt strength polypropylene with a dispersion coefficient of 5 and a melt strength of 26cN, and 20 parts of high crystal copolymer polypropylene with a crystallinity of 75%. 10100.08 parts of antioxidants, 1680.12 parts of antioxidants, 38080.1 parts of light stabilizers, and 0.3 parts of polyethylene wax were placed in a high-speed mixer and mixed for 6 minutes to obtain the above-mentioned mixture of components; the obtained mixture was added to the double through the main feed hopper In the screw extruder, intermeshing and mixing; at the same time, 30 parts of talc powder with a particle size of 10,000 mesh is added to the barrel of the twin screw extruder through the side feeding port, and then extruded, stretched, air-dried, granulated, etc. The program obtains the polypropylene material for the structure of the baby carriage; among them, the barrel temperature of the twin screw ext...

Embodiment 3

[0039] 60 parts of copolymer polypropylene with a melt index of 20g / 10min, 8.2 parts of high melt strength polypropylene with a dispersion coefficient of 4 and a melt strength of 20cN, and 20 parts of high crystal copolymer polypropylene with a crystallinity of 73%. 10100.4 parts of antioxidant, 1680.6 parts of antioxidant, 7700.3 parts of light stabilizer, and 0.5 part of stearic acid amide were put into a high-speed mixer and mixed for 4 minutes to obtain a mixture of the above components; the obtained mixture was added to the main feed hopper In the twin-screw extruder, intermeshing and kneading are carried out; at the same time, 10 parts of whiskers with a length-to-diameter ratio of 150:1 are added to the barrel of the twin-screw extruder through the side feeding port, and then extruded, stretched, and air-dried , Granulation and other procedures to obtain the polypropylene material for the structure of the baby carriage; among them, the barrel temperature of the twin-screw...

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Abstract

The invention discloses a polypropylene material for a baby carriage main beam and a preparing method thereof and belongs to the technical field of high polymer materials. The polypropylene material is prepared from, by weight, 40-60 parts of common co-polypropylene, 20-30 parts of high-crystallized co-polypropylene, 5-15 parts of high-melt-strength polypropylene, 10-30 parts of fortifier, 0.2-2 parts of antioxidant, 0.1-0.5 part of light stabilizer and 0.3-1 part of lubricant. High-melt-strength polypropylene with ultrahigh tenacity and ductility and high-crystallized co-polypropylene with high rigidity are combined to prepare the polypropylene material with ultrahigh rigidity and toughness, the flexural modulus of the polypropylene material is over 2,300 MPa, the cantilever notch impact strength of the polypropylene material is over 25 KJ/m<2>, and the tensile elongation of the polypropylene material is over 500%. The requirements of a baby carriage structural support for high rigidity, high tenacity and high ductility are met, and the polypropylene material is expected to be applied to the baby carriage product market, even the automobile market and the household appliance industry.

Description

Technical field [0001] The invention relates to a polypropylene composite material and a preparation method thereof, in particular to a polypropylene material used for the main beam of a stroller and a preparation method thereof, and belongs to the technical field of polymer materials. Background technique [0002] Due to its light weight, corrosion resistance, low price, and easy processing, high-performance modified polymer materials have shown obvious advantages in various fields of manufacturing compared with metals or other materials, which not only improve the production efficiency and product portability, but also Environmental protection. In recent years, modified polymer materials have been used more and more in the field of strollers. Whether it is interior and exterior decorative parts, or functional and structural parts, the shadow of modified polymer materials can be seen everywhere. [0003] Because of its high performance and low cost, polypropylene has become the m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/16C08L23/14C08L23/12C08K13/02C08K3/34C08K7/02
CPCC08L23/0815C08L23/14C08L2205/02C08L2205/03C08L2205/035C08L23/12C08K13/02C08K3/34C08K7/02C08L23/142C08L83/04C08K5/1345C08K5/526C08K13/04C08K5/098C08K7/04C08L23/06
Inventor 王滨吴汾蒋顶军周勇
Owner NANJING JULONG SCI&TECH CO LTD
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