Polypropylene material with high rigidity and high heat resistance and preparation method thereof, as well as injection molding product and preparation method thereof

A polypropylene material, injection molding technology, applied in the field of polypropylene material and its preparation, can solve the problems of increased cost, setting to 240 ℃-245 ℃, etc., and achieves improved strength and heat resistance temperature, low defect rate, powder filling high volume effect

Active Publication Date: 2018-11-20
WANHUA CHEMICAL (NINGBO) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The formula consists of 100 parts of homopolypropylene, 50-100 parts of random copolymerized polypropylene, 30-100 parts of COC material, 15-35 parts of toughening agent, 3-8 parts of flame retardant, 0.75-1.5 parts of nucleating agent, Composed of 0.15-0.35 parts of antioxidant, the COC material content is as high as 30-100 parts, which greatly increases the cost while improving the material performance, and the processing molding temperature needs to be set to 240°C-245°C, which is resistant to the matrix polypropylene. Higher thermal stability requirements
[0006] At present, there is no way to combine the material formula with the processing technology to obtain a modified polypropylene material with simple preparation, low cost, low defect, high modulus, high strength and high heat resistance temperature

Method used

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  • Polypropylene material with high rigidity and high heat resistance and preparation method thereof, as well as injection molding product and preparation method thereof
  • Polypropylene material with high rigidity and high heat resistance and preparation method thereof, as well as injection molding product and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0039] Combine 35wt% polypropylene Moplen HP200P, 8wt% cycloolefin polymer Topas 9506F-04, 2wt% masterbatch 2014, 0.1wt% nucleating agent TMY-4, 0.4wt% primary antioxidant Irganox 1010 , 0.4wt% of the auxiliary antioxidant Irgafos 168, 0.1wt% of the anti-ultraviolet absorber UV-P, 1wt% of magnesium stearate mixed in a high-mixer for 10 minutes and then added to the 35mm diameter ratio of 52 In the main feed port of the twin-screw extruder, 53wt% of 2500 mesh talc powder is added to the side feed port. The temperature of the 13 zone of the twin-screw extruder is set to 195℃, 205℃, 205℃, 210℃, 210℃. , 210°C, 215°C, 215°C, 215°C, 215°C, 205°C, 205°C, 195°C, mixing and granulating under the conditions of rotating speed 250rpm.

[0040] Performance evaluation methods and implementation standards:

[0041] The particle material granulated according to the above method is first dried in a blast oven at 100°C for 2 hours, and then the dried particle material is injection molded on a 90t i...

Embodiment 2-7

[0046] The formula and injection molding process conditions are shown in Table 1, and the other conditions are the same as in Example 1.

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Abstract

The invention discloses a polypropylene material with high rigidity and high heat resistance and a preparation method thereof, as well as an injection molding product and a preparation method thereof.The polypropylene material comprises polypropylene resin, an inorganic filler, a cycloolefin polymer, a color masterbatch, a nucleating agent, an antioxidant, an anti-ultraviolet light absorbent anda lubricant. The polypropylene material has the advantages of high powder filling, high crystallinity and low defect rate. The modulus, strength and heat-resistant temperature of an injection moldingfinished product can be improved by optimized design of a formula and matching with an appropriate injection molding process.

Description

Technical field [0001] The invention relates to a polypropylene material with high rigidity and high heat resistance and a preparation method thereof, as well as an injection molding product prepared by using the polypropylene material and a preparation method thereof. Background technique [0002] Polypropylene has the advantages of excellent processing performance, high toughness, good gasoline and chemical resistance, light weight and low price. It is widely used in automobile interior and exterior parts, electronic and household appliances products, and is currently the fastest growing Fast general-purpose thermoplastic. However, polypropylene also has significant disadvantages of poor heat resistance and low rigidity. [0003] Usually by increasing the aspect ratio or the diameter-to-thickness ratio and adding fillers, such as glass fiber, carbon fiber, mica powder, etc., the rigidity, strength and heat resistance of polypropylene materials are greatly improved. However, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L45/00C08K13/02C08K3/34C08K3/26C08K5/134C08K5/526C08K5/098
CPCC08L23/12C08L2201/08C08L45/00C08K13/02C08K3/34C08K3/26C08K5/1345C08K5/526C08K5/098
Inventor 张红陈海波陈连清李小博俞斌华卫琦赵喆
Owner WANHUA CHEMICAL (NINGBO) CO LTD
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