Unlock instant, AI-driven research and patent intelligence for your innovation.

Stain resistant polypropylene modified material and preparation method thereof

A modified material and polypropylene technology are applied in the field of dye-resistant polypropylene modified materials and their preparation, which can solve the problems of insufficient anti-staining performance, easy dirtying of the inner liner, and reduced product quality, so as to improve product quality. And added value, high anti-pollution dyeing resistance, good market application prospects

Active Publication Date: 2012-09-05
KINGFA SCI & TECH CO LTD +2
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the disadvantage is that the anti-pollution of the existing modified polypropylene materials, especially the anti-staining performance is not good enough, and the inner tank is easy to be dirty after repeated use
For example, ketchup contains a lot of lycopene, grapes contain a lot of purple pigments, etc. These pigments soak into the surface of the material and cause the color change of the inner tank surface. When the color changes to a certain extent, it will appear dirty, and even become a source of pollution Batch food, reduce product quality

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] 74.5% of PP, 20% of talcum powder, 2% of organic phosphate, 3% of ethylene-propylene copolymer, 0.1% of antioxidant 1010 and 0.4% of zinc stearate are mixed evenly by weight.

[0030] The above components are melted and mixed by twin-screw extrusion to prepare dye-resistant polypropylene modified materials. The temperature of the heating zone of the twin-screw extruder is set as: 160°C, 170°C, 190°C, 210°C, 220°C, 230°C , 250°C, 250°C, 190°C (the sequence is from the feeding port to the machine head), and the speed is 400rpm.

[0031] The above-mentioned materials are injected into color plates at 200°C by an injection molding machine, placed under natural conditions for 48 hours, then soaked in the pollution simulation solution for 24 hours, taken out, rinsed, and tested for color difference after drying.

[0032] The color difference values ​​before and after immersion are: DL=-0.59, Da=-0.6, Db=1.85, DE=2.23.

Embodiment 2

[0034] By weight, 61.3% of PP, 30% of barium sulfate, 3% of organic phosphate, 5% of ethylene-propylene copolymer, 0.1% of antioxidant 1010, 0.2% of antioxidant 168 and 0.4% of hard Zinc fatty acid is mixed evenly.

[0035] Melt and mix the above components with a twin-rotor continuous mixing equipment, and prepare a dye-resistant polypropylene modification with a single-screw extrusion granulator. The temperature setting of the machine heating zone is: 160°C, 180°C, 190°C, 190°C, 190°C, 190°C, 190°C (the order is from the feeding port to the machine head), and the speed is 120rpm.

[0036] The above-mentioned materials are injected into color plates at 200°C by an injection molding machine, placed under natural conditions for 48 hours, then soaked in the pollution simulation solution for 24 hours, taken out, rinsed, and tested for color difference after drying.

[0037] The color difference values ​​before and after immersion are: DL=-0.75, Da=-0.86, Db=2.32, DE=2.72.

Embodiment 3

[0039] By weight, 51.3% of PP, 40% of ceramic beads, 3% of organic phosphate, 5% of ethylene-propylene copolymer, 0.1% of antioxidant 1010, 0.2% of antioxidant PS802, 0.2% of Antioxidant 168 and 0.2% zinc stearate were mixed evenly.

[0040] Melt and mix the above components with an internal mixer, and granulate with a single-screw extruder to prepare dye-resistant polypropylene modification. The temperature of the internal mixer is set at 180°C and the speed is 40rpm. It is: 160°C, 180°C, 190°C, 190°C, 190°C, 180°C (the order is from the feeding port to the machine head), and the rotation speed is 150rpm.

[0041] The above-mentioned materials are injected into color plates at 200°C by an injection molding machine, placed under natural conditions for 48 hours, then soaked in the pollution simulation solution for 24 hours, taken out, rinsed, and tested for color difference after drying.

[0042] The color difference values ​​before and after immersion are: DL=-0.78, Da=-0.92,...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a stain resistant polypropylene modified material and a preparation method thereof. The modified material mainly comprises the following components by weight percent: 50-96% of polypropylene, 1-40% of filler, 0.5-10% of heat resistant modifier, 0.5-20% of modifier for coating filler, 0.01-2% of antioxidant and 0.01-10% of processing additive. The preparation method adopts the melt blending method and uses an extruder, mixer or two-rotor continuous mixing device to perform the melt blending and granulation of the components. Compared with the existing polypropylene modified material, the material of the invention has higher anti-pollution and stain-resistant property, product quality and added value and low production cost; and the material can be widely used in theinner containers of household appliances such as the dish-washing machine or juicer and has wide market application prospect.

Description

technical field [0001] The invention relates to a polypropylene modified material, in particular to a stain-resistant polypropylene modified material and a preparation method thereof. Background technique [0002] Compared with general-purpose plastics, polypropylene has the advantages of light specific gravity, low price, good mechanical properties and good heat resistance. It is often used as a filling, toughening or reinforcing modified material and is widely used in automobiles, home appliances, medical care, daily necessities and other fields. In order to reduce costs, most of the inner tank materials of household appliances such as dishwashers or fruit juice machines are made of modified polypropylene instead of stainless steel. But the disadvantage is that the anti-pollution of the existing modified polypropylene materials, especially the anti-staining performance is not good enough, and the inner tank is easy to appear dirty after repeated use. The reason is that th...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C08L23/12C08K13/02C08K13/04B29B9/06
Inventor 阳范文肖鹏叶南飚陶四平何浏炜杨志骅
Owner KINGFA SCI & TECH CO LTD