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

A kind of silicon-fluorine modified polyolefin composite material and preparation method thereof

A composite material and polyolefin technology, which is applied in the field of silicon-fluorine modified polyolefin material and its preparation, can solve the problems of difficult processing, hindering the application of silicone oil, and high price, and achieves improved water and oil repellency, low cost and simple process. Effect

Active Publication Date: 2016-02-03
RIFENG ENTERPRISE GRP CO LTD +1
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although fluorine-containing polymers have many excellent properties, their processing is difficult, and the price is too high compared with ordinary polymers. How to make full use of the advantages of both fluorine-containing polymers and ordinary polymers and overcome the shortcomings of both is the current research Hotspots and Difficulties
[0004] The application of silicone materials in the plastic processing industry began in the early 1970s. Initially, silicone oils were used as internal lubricants and release agents for polyolefin injection molding. Due to their incompatibility with polyolefins, low molar High-quality liquid silicone will migrate to the surface of plastic parts and spread, which greatly hinders the application of this type of silicone oil on plastics

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

[0015] A kind of silicon-fluorine modified polyolefin composite material, its raw material comprises polyolefin, polytetrafluoroethylene powder and compatibilizer, takes by weighing 24 grams of polytetrafluoroethylene powder (brand L-5, Japan Daikin Industry Co., Ltd.), 36 grams of medium-density polyethylene MDPE (brand SP980, South Korea LG chemical company), that is, the weight ratio of polytetrafluoroethylene powder and polyolefin is 40:60, and the compatibilizer is the maleic anhydride grafting with a grafting rate of 1.5%. Polyethylene, its consumption is 1.2 grams.

[0016] Its preparation method: pre-mix polytetrafluoroethylene powder, MDPE and maleic anhydride grafted polyethylene, then put it into an internal mixer, melt and blend at a temperature of 200°C, and control the speed of the internal mixer at 50rpm , and melt blending for 10 minutes, the plastic containing the fluorine modifier can be obtained.

[0017] The raw material modifier and compatibilizer selecte...

Embodiment 2

[0024] A silicon-fluorine modified polyolefin composite material, its raw material is composed of an olefin surface modifier containing a perfluoroalkyl functional group, polyolefin and an adsorption carrier, wherein 3 grams of the olefin surface modification containing a perfluoroalkyl functional group are weighed Agent (brand TG1001, Daikin Industry Co., Ltd. of Japan), 57 grams of MDPE (brand SP980, Korea LG Chemical Company), the weight ratio of the olefinic surface modifier containing perfluoroalkyl functional group and polyolefin is 5:95, The amount of adsorption carrier (brand Sipernat22, EVONIK Degussa, Germany) was 1 gram.

[0025] Its preparation method: After grinding the olefin surface modifier containing perfluoroalkyl functional groups into a powder with a particle size of 60-150 meshes, it is pre-mixed with MDPE and an adsorption carrier, and then put into an internal mixer. The modified polyolefin composite material can be obtained by melting and blending at lo...

Embodiment 3

[0032] A silicon-fluorine modified polyolefin composite material, its raw material is composed of olefin surface modifier containing perfluoroalkyl functional groups, polytetrafluoroethylene powder, polyolefin, compatibilizer and adsorption carrier, weigh 1.2 grams containing all The olefinic surface modifier of fluorocarbon group functional group (brand TG1001, Japan's Daikin Industries Co., Ltd.), 12 grams of polytetrafluoroethylene powder (brand name LB-202, Japan's Daikin Industries, Ltd.), 46.8 grams of MDPE (brand name SP980, South Korea LG Chemical Company), that is, the weight ratio of the olefin surface modifier containing perfluoroalkyl functional groups, polytetrafluoroethylene powder and polyolefin is 2:20:78, and the compatibilizer is a horse with a grafting rate of 1.5%. To acid anhydride grafted polyethylene, its consumption is 0.8 gram, and adsorption carrier (brand Sipernat22, Germany EVONIKDegussa) consumption is 0.5 gram.

[0033] Its preparation method: Gri...

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 fluosilicic modified polyolefin composite material which comprises the following components of polyolefin, a modifying agent, a bulking agent and / or an adsorption carrier, wherein the polyolefin is high density polyethylene, medium density polyethylene, low density polyethylene, polypropylene or ethylene and propylene random copolymer; the modifying agent is one or several of polytetrafluoroethylene, polyvinylidene fluoride, organic silicone oil, fluorine-containing siloxane and an olefin surface modifying agent containing a perfluoroalkyl functional group in any weight ratio; the bulking agent is one or two of maleic anhydride grafted polyolefin and glycidyl acrylate grafted polyolefin in any weight ratio; and the adsorption carrier is a porous molecular sieve. The fluosilicic modified polyolefin composite material has the advantages that stable fluosilicic substance can be introduced in polyolefin plastics, the process is simple, the cost is low, and the water and oil repellent property is remarkably improved.

Description

technical field [0001] The invention relates to a silicon-fluorine modified polyolefin material and its preparation. Background technique [0002] Materials with extremely low surface free energy can exhibit many excellent properties such as outstanding stain resistance, weather resistance, high heat resistance and high acid and alkali resistance. It can be widely used in fields such as water-proof, oil-proof, and dirt-proof treatment that can be widely used in industrial production. Fluoropolymers and silicones are representative of two classes of materials with very low surface energies. Among them, fluorine in fluorine-containing polymers has the highest electronegativity among all elements, and the van der Waals atomic radius is the smallest except hydrogen, the polarizability of fluorine atoms is the lowest, and the bond energy of the single bond formed by fluorine atoms and carbon atoms Compared with the bond energy of single bonds formed by carbon atoms and other at...

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): C08L23/06C08L23/08C08L23/12C08L23/16C08L27/18C08L83/04C08K5/02C08K3/34
CPCC08K5/02C08K5/5406C08L23/06C08L23/0815C08L23/12C08L27/16C08L27/18C08L83/04C08L2205/03C08L2205/035C08L2207/062C08L2207/066C08L51/06
Inventor 邓志彭晓翊秦小梅李白千
Owner RIFENG ENTERPRISE GRP CO LTD