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Glass fiber reinforced polypropylene material and hydrolysis resistance and oxidation resistance evaluation method thereof

A technology of polypropylene material and copolymerized polypropylene, which is applied in the field of glass fiber reinforced polypropylene material and its hydrolysis resistance and oxidation resistance evaluation, can solve the problems of lack of universality and incompatible with the actual oxidation mechanism of the material, and achieves low price and high production efficiency. The effect of low cost and constant amount of oxygen

Inactive Publication Date: 2011-04-13
PANASONIC HOME APPLIANCES R&D CENT HANGZHOU +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, this evaluation method has great limitations and lacks universality; and the thermal oxygen aging evaluation experiment, originally used an oven without quantitative oxygen exchange for thermal oxygen aging experiments, ignoring the influence of oxygen on material aging, thereby slowing down The normal aging of the material is not consistent with the actual oxidation mechanism of the material

Method used

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  • Glass fiber reinforced polypropylene material and hydrolysis resistance and oxidation resistance evaluation method thereof
  • Glass fiber reinforced polypropylene material and hydrolysis resistance and oxidation resistance evaluation method thereof
  • Glass fiber reinforced polypropylene material and hydrolysis resistance and oxidation resistance evaluation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051](1) Add 25 parts of copolymerized polypropylene and / or 50 parts of homopolypropylene, and 3 parts of compatibilizer maleic anhydride into the high-mix tank in turn, mix thoroughly, and then add the main antioxidant 10101 into the high-mix tank 3301 parts, 1 part of auxiliary antioxidant DLTDP, 6271 parts, 10240.4 parts of metal deactivator MD, 0.3 parts of calcium stearate, 0.3 parts of erucamide. Then mix in the high mixer for 3 minutes, put it into the lower hopper and mix and melt it with a twin-screw machine after mixing fully. Section 220°C, fifth section 220°C, sixth section 210°C, seventh section 200°C, eighth section 200°C, ninth section 210°C, melt temperature 220°C, head temperature 220°C;

[0052] (2) The treated glass fiber is metered and added through the side feeder of the twin-screw extruder;

[0053] (3) Extrude the strands from the twin-screw machine, cool the strands through water, dry the water on the surface of the strands, and then pelletize;

[00...

Embodiment 2

[0057] (1) Add 10 parts of copolymerized polypropylene and / or 80 parts of homopolypropylene and 5 parts of polypropylene grafted with compatibilizer glycidyl acrylate into the high-mixing tank, mix thoroughly, and then add to the high-mixing tank 2 parts of main antioxidant 330, 1 part of auxiliary antioxidant DLTDP, 1 part of auxiliary antioxidant 627, 0.4 part of metal deactivator MD 1024, 0.3 part of processing aid calcium stearate, 0.3 part of erucamide, in Mix in the high mixer for 3 minutes, put it into the lower hopper after mixing fully, and use a twin-screw machine to mix and melt. The mixing and melting temperature is: 180°C for the first section, 210°C for the second section, 220°C for the third section, and 220°C for the fourth section. ℃, fifth section 220℃, sixth section 210℃, seventh section 200℃, eighth section 200℃, ninth section 210℃, melt temperature 220℃, head temperature 220℃;

[0058] (2) The treated glass fiber is metered and added through the side feede...

Embodiment 3

[0062] (1) Add 80 parts of copolymerized polypropylene and / or 5 parts of homopolypropylene and 8 parts of polypropylene grafted with compatibilizer glycidyl acrylate into the high-mixing tank in turn, mix thoroughly, and then add to the high-mixing tank 2 parts of primary antioxidant 330, 2 parts of auxiliary antioxidant DLTDP, 10.4 parts of metal deactivator Naugard XL-10.4 parts, metal deactivator CL-09-367 0.2 parts, processing aid N, N'--ethylene bis Mix 0.3 parts of stearamide and 0.3 parts of polyethylene wax in a high mixer for 3 minutes, put them into the lower hopper and melt them with a twin-screw machine after mixing well. ℃, the third section 220°C, the fourth section 220°C, the fifth section 220°C, the sixth section 210°C, the seventh section 200°C, the eighth section 200°C, the ninth section 210°C, the melt temperature 220°C, Head temperature 220°C;

[0063] (2) The treated glass fiber is metered and added through the side feeder of the twin-screw extruder;

[...

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Abstract

The invention relates to a glass fiber reinforced polypropylene material and a hydrolysis resistance and oxidation resistance evaluation method thereof, belonging to the technical field of organic materials. The glass fiber reinforced polypropylene material comprises co-polypropylene and / or homo-polypropylene, a compatilizer, glass fiber, antioxygen, metal passivator and a processing agent. The evaluation method comprises the following steps of: soaking a sample in pure water; testing the performance of a sample wafer in 80-95 DEG C thermostatic water bath; naturally airing; hanging the sample wafer in 100-150 DEG C ventilation-type thermal ageing testing machine until the material reaches the service life; and then recording the testing time and the testing data. The glass fiber reinforced polypropylene material has good mechanical property, hydrolysis resistance and thermal oxidation resistance of resisting high-temperature detergents, and the performances exceed those of the prior home and abroad reinforced polypropylene materials, and moreover, the glass fiber reinforced polypropylene material has low production cost and low price.

Description

technical field [0001] The invention belongs to the technical field of organic materials, and in particular relates to a glass fiber reinforced polypropylene material and a method for evaluating its hydrolysis resistance and oxidation resistance. Background technique [0002] As a general-purpose plastic, polypropylene has the advantages of excellent processing performance, good mechanical properties, and corrosion resistance, so it occupies an important position in plastics. However, when polypropylene is used in some parts, its strength, heat resistance, etc. Far from meeting the requirements. For example, some washing machines that appear on the market now have high-temperature washing, sterilization and drying functions, which makes the materials of the resin structural parts of the washing machine have strong mechanical properties, thermal oxidation resistance and thermal oxidation resistance after high-temperature washing. Although there are many manufacturers of poly...

Claims

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Application Information

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IPC IPC(8): C08L23/14C08L23/12C08L51/06C08K13/04C08K7/14G01N17/00
Inventor 陈家锋
Owner PANASONIC HOME APPLIANCES R&D CENT HANGZHOU
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