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Detergent and hot water solution soakage-resistance polypropylene composite

A detergent and compound-resistant technology, applied in the field of polymer composite materials, can solve the problems of easy aging of plastic parts, and achieve the effect of prolonging the service life and improving the aging resistance of heat and oxygen.

Active Publication Date: 2010-06-30
SHANGHAI KINGFA SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a polypropylene compound resistant to immersion in hot water solution of detergent, to overcome the above-mentioned defects in the prior art and to solve the problem of washing machine, dishwasher and other plastic parts that need to be exposed to detergent. aging conundrum

Method used

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  • Detergent and hot water solution soakage-resistance polypropylene composite
  • Detergent and hot water solution soakage-resistance polypropylene composite

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Embodiment Construction

[0020] The polypropylene composite of the present invention resistant to immersion in hot water solution of detergent, its composition and each composition weight percent are as follows:

[0021] Polypropylene resin 50%~80%

[0022] Toughener 0%~15%

[0023] Filler 5%~40%

[0024] Compound antioxidant 0.5%~1.5%

[0025] Processing aid 0.2%~0.8%

[0026] Among them: the melting index of polypropylene resin under the test conditions of 230°C and 2.16KG is 2-40g / 10min; the composite antioxidants are triazine antioxidants, phosphite antioxidants and thioether antioxidants compound.

[0027] The preparation process of the polypropylene composite resistant to immersion in hot water solution of detergent is as follows:

[0028] First, the polypropylene resin, toughening agent, filler, composite antioxidant and processing aid are weighed according to the proportion and then mixed uniformly; Pelletizing and drying are enough; wherein: the length-to-diameter ratio of the twin-scre...

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Abstract

The invention discloses a detergent and hot water solution soakage-resistance polypropylene composite, which comprises the following components in percentage by weight: polypropylene resin 50-80, flexibilizer 0-15, filler 5-40, composite antioxidant 0.5-1.5 and processing aid 0.2-0.8, wherein the melt index of the polypropylene resin under test conditions of a temperature of 230 DEG C and a mass of 2.16KG is 2 to 40g / 10min; and the composite antioxygen is a composite of a triazine antioxygen, a phosphite ester antioxygen and a thioether antioxygen. Compared with the prior art, the detergent and hot water solution soakage-resistance polypropylene composite has obviously improved heat resistance, aging resistance and oxidization resistance under the condition of the same detergent and hot water solution soakage time and has a service life prolonged by 5 to 12 times. The easy aging problem of the plastic parts, needing to contact detergent directly, of a washing machine, a dish-washing machine and the like in the prior art is solved.

Description

technical field [0001] The invention relates to a polypropylene composite, in particular to a polypropylene composite resistant to immersion in hot water solution of detergent, and belongs to the technical field of polymer composite materials. Background technique [0002] As a general-purpose plastic, polypropylene has the advantages of small specific gravity, good processability, good environmental stress crack resistance, good heat resistance, and resistance to various chemical solvents. It is widely used as internal functional components of household appliances. However, the side methyl group in the polypropylene molecular chain activates the tertiary carbon atom, making polypropylene very sensitive to heat, oxygen, light, etc., and prone to degradation. In view of the characteristics of polypropylene resin, it is usually necessary to add antioxidants and UV-resistant additives to polypropylene resin in the preparation of polypropylene plastics to improve the service lif...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/10C08K13/02C08K5/3492C08K5/526C08K5/372
Inventor 肖鹏夏建盟
Owner SHANGHAI KINGFA SCI & TECH
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