Polypropylene composite material with lotus effect on greasy dirt and preparation method for polypropylene composite material

A technology of lotus leaf effect and composite material, applied in the field of modified plastics, can solve the problems of limited oil resistance and self-cleaning ability, poor oil resistance effect, many modified materials, etc., and achieve excellent oil resistance, improved oil resistance, The effect of good self-cleaning performance

Inactive Publication Date: 2017-06-23
鑫同吸塑(深圳)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, after all, the oleophobic coating is not an integrated integral molding material with the tableware itself, and the coating will be gradually worn away during the repeated washing, washing and long-term scratching of spoons, knives and forks by the user, and the anti-oil effect will be reduced. It gets worse and worse, especially reflected in polypropylene plastic tableware
[0010] At present, polypropylene composite materials with certain oil resistance and self-cleaning ability are mostly used as shells of small household appliances such as rice cookers, soybean milk makers, induction cookers, electric pressure cookers, and slow cookers. and limited self-cleaning ability

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0083] The preparation method of the nano-silica polymer composite particles is as follows: after the above-mentioned polypropylene, gas-phase nano-silica and compatibilizer are vacuum-dried at 85°C for 12 hours, they are added to a high-speed mixer and fully mixed, and then mixed in a double Melt blending and granulation in the screw extruder. The screw speed of the twin-screw extruder is 300rpm, and the temperature of the four sections of the barrel is respectively set to: 180°C, 190°C, 200°C, and 210°C. Extruded, fully cooled, ground and pelletized by an automatic high-efficiency plastic pelletizer, and made into nano-silica polymer composite particles with a mesh number of 6000 mesh and a particle size of more than 2um.

[0084] The compatibilizer is a hydrogenated styrene-butadiene-styrene block copolymer grafted with maleic anhydride, with a graft ratio of 1.84, which is purchased from Shell Corporation of the United States.

[0085] A kind of preparation method of the p...

no. 1 example

[0091] Isotactic food grade polypropylene resin HJ730L——75%

[0092] Nitrile rubber (NBR) N600——8%

[0093] Compatibilizer maleic anhydride grafted polypropylene - 3%

[0094] Fluoride PTFE M111 (fine powder) —— 5%

[0095] Nano-silica polymer composite particles (among them, the grade of nano-silica is LM-150 from CABOT Company of the United States)——10%

[0096] Compound antioxidant Irganox1010: Ultranox626 (1:1) - 0.3%

[0097] Composite nucleating agent NX8000: NA-11 (3:1) - 0.2%

[0098] The specific preparation method is as follows:

[0099] (1) According to the proportion, add the above-mentioned isotactic food grade polypropylene resin HJ730L, nitrile rubber (NBR) N600 and compatibilizer maleic anhydride grafted polypropylene into the mixer for 10 minutes, and the mixer speed is 800rpm;

[0100] (2) According to the proportion, add the above-mentioned fluoride polytetrafluoroethylene M111 (micropowder), nano-silica polymer composite particles, composite nucleating...

no. 2 example

[0104] Random copolymerization food grade polypropylene resin ST868M——70%

[0105] Nitrile rubber (NBR) BT-205——8%

[0106] Compatibilizer vinyl acetate grafted polypropylene - 4%

[0107] Fluoride polytetrafluoroethylene L169E (fine powder) - 7%

[0108] Nano-silica polymer composite particles (among them, the grade of nano-silica is QS-102 from TOKUYAMA, Japan)——15%

[0109] Compound antioxidant Irganox1076: Ultranox626 (1:1)——0.2%

[0110] Composite nucleating agent NX8000: NA-11 (3:1) - 0.3%

[0111] The specific preparation method is as follows:

[0112] (1) According to the proportion, add the above random copolymerization food grade polypropylene resin ST868M, nitrile rubber (NBR) BT-205 and compatibilizer vinyl acetate grafted polypropylene into the mixer for 12 minutes, the mixer speed 1200rpm;

[0113] (2) According to the proportion, add the above-mentioned fluoride polytetrafluoroethylene L169E (micropowder), nano-silica polymer composite particles, composite...

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Abstract

The invention relates to a polypropylene composite material with a lotus effect on greasy dirt. The polypropylene composite material is prepared from the following components in percentage by mass: 60-80% of polypropylene, 5-8%of nitrile rubber, 2-5% of a compatilizer, 2-8% of fluoride, 10-15% of nano silicon dioxide polymer composite particles, 0.2-0.5% of a composite anti-oxidant and 0.1%-0.3% of a composite nucleating agent. The invention further relates to a preparation method for the polypropylene composite material. The polypropylene composite material surface has relatively strong greasy dirt resistance and easy cleaning performance, and can form the lotus effect on the greasy dirt.

Description

technical field [0001] The invention relates to the technical field of modified plastics, in particular to a polypropylene composite material suitable for forming a lotus leaf effect on oil stains on the surface of tableware and a preparation method thereof. Background technique [0002] Polypropylene is non-toxic, odorless, and low-density. It can be used as a raw material for tableware. It is one of the five general-purpose plastics and is widely used in household appliances, automobiles, and daily necessities. Due to the regular structure and high crystallization of polypropylene, its melting point is as high as 167°C, and its heat resistance is good. Its outstanding advantage is that polypropylene products can be sterilized by steam. And its density is 0.90g / cm3, which is the lightest general-purpose plastic. Corrosion resistance, tensile strength can reach 30MPa, strength, rigidity and transparency are better than polyethylene. [0003] Isotactic polypropylene (iPP) i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L23/14C08L9/02C08L51/06C08L27/18C08K3/36C08K5/134C08K5/526C08J3/22
CPCC08L23/12C08J3/226C08J2323/12C08J2323/14C08K2201/011C08L23/14C08L2201/08C08L2205/035C08L2207/10C08L2207/14C08L9/02C08L51/06C08L27/18C08K3/36C08K5/1345C08K5/526
Inventor 刘海锋
Owner 鑫同吸塑(深圳)有限公司
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