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Natural-fiber-reinforced polypropylene composite material with mildewproof and antimicrobial properties and preparation method thereof

A natural fiber and composite material technology, applied in the field of fiber composite materials, can solve the problems of material mechanical performance degradation, affecting the service life of materials, and unhealthy contacts, so as to reduce hygroscopicity, prolong service life, and improve anti-mildew and antibacterial performance Effect

Inactive Publication Date: 2016-04-20
SHANGHAI PRET COMPOSITES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Sky fiber has a unique structure, its main components are cellulose, hemicellulose and lignin, and has the characteristics of high water absorption. The natural fiber composite material prepared from it is easily corroded by surrounding water in a humid environment, and will It provides a living environment for some molds and fungi, which leads to the infection of the material by mold and fungi, which reduces its mechanical properties. At the same time, the resin matrix itself, as an organic polymer material, will also be polluted during use and storage and become some It is a breeding ground for harmful microorganisms such as bacteria and fungi, which will adversely affect the health of those in contact. At the same time, the production of mold will reduce the mechanical properties of the material, and some mold spots will also appear on the surface of natural fiber composite materials. Affect the beauty of the material, which greatly affects the service life of the material
[0005] In view of the fact that there are many patents and literature reports on the use of natural fibers to reinforce polymer resins to prepare composite materials, and some research has been done on the functionalization and performance improvement of materials, such as improving the flame retardancy of natural fiber-reinforced composite materials. etc., increased the research on the compatibility between natural fiber and matrix resin, but there are few reports on improving its anti-mildew and anti-bacterial performance. Natural fiber composite material and preparation method thereof, aiming at improving the practical performance of natural fiber composite material

Method used

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  • Natural-fiber-reinforced polypropylene composite material with mildewproof and antimicrobial properties and preparation method thereof
  • Natural-fiber-reinforced polypropylene composite material with mildewproof and antimicrobial properties and preparation method thereof
  • Natural-fiber-reinforced polypropylene composite material with mildewproof and antimicrobial properties and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] 85 parts of polypropylene; 10 parts of jute fiber; 3 parts of compatibilizer; 0.5 part of coupling agent; 0.2 part of antioxidant; 1 part of lubricant; After the treatment with the compatibilizer and the compatibilizer, the side feed enters the twin-screw extruder and is extruded and pelletized by the extruder with a processing temperature of 160-190°C.

[0040] The polypropylene described in the above example is selected with a melt index of about 15g / 10min; the jute fiber is 3-5mm chopped fiber; the compatibilizer is polypropylene grafted maleic anhydride; the coupling agent is KH550; Oxygen 1010 and antioxidant 168 are compound antioxidants in a mass ratio of 1:2; the lubricant is calcium stearate; the anti-mildew and antibacterial agent is nano-copper oxide. Among them, the extrusion process of each zone of the twin-screw extruder is as follows: the first zone is 160°C, the second zone is 170°C, the third zone is 180-190°C, and the fourth zone is 170°C.

Embodiment 2

[0042] 80 parts of polypropylene; 15 parts of jute fiber; 3 parts of compatibilizer; 0.5 part of coupling agent; 0.2 part of antioxidant; 1 part of lubricant; After the treatment with the compatibilizer and the compatibilizer, the side feed enters the twin-screw extruder and is extruded and pelletized by the extruder with a processing temperature of 160-190°C.

[0043] The polypropylene described in the above example is selected with a melt index of about 15g / 10min; the jute fiber is 3-5mm chopped fiber; the compatibilizer is polypropylene grafted maleic anhydride; the coupling agent is KH550; Oxygen 1010 and antioxidant 168 are compound antioxidants in a mass ratio of 1:2; the lubricant is calcium stearate; the anti-mildew and antibacterial agent is nano-copper oxide. Among them, the extrusion process of each zone of the twin-screw extruder is as follows: the first zone is 160°C, the second zone is 170°C, the third zone is 180-190°C, and the fourth zone is 170°C.

Embodiment 3

[0045] 72 parts of polypropylene; 20 parts of jute fiber; 5 parts of compatibilizer; 1 part of coupling agent; 0.4 part of antioxidant; 1 part of lubricant; 0.6 part of anti-mildew and antibacterial agent; After the treatment with the compatibilizer and the compatibilizer, the side feed enters the twin-screw extruder and is extruded and pelletized by the extruder with a processing temperature of 160-190°C.

[0046] The polypropylene described in the above example is selected with a melt index of about 15g / 10min; the jute fiber is 3-5mm chopped fiber; the compatibilizer is polypropylene grafted maleic anhydride; the coupling agent is KH550; Oxygen 1010 and antioxidant 168 are compound antioxidants in a mass ratio of 1:2; the lubricant is calcium stearate; the anti-mildew and antibacterial agent is nano-copper oxide. Among them, the extrusion process of each zone of the twin-screw extruder is as follows: the first zone is 160°C, the second zone is 170°C, the third zone is 180-190°...

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Abstract

The invention discloses a natural-fiber-reinforced polypropylene composite material with mildewproof and antimicrobial properties and a preparation method thereof. The natural-fiber-reinforced polypropylene composite material with mildewproof and antimicrobial properties comprises the following raw materials in parts by weight: 10-35 parts of natural fiber, 50-85 parts of polypropylene, 1-10 parts of compatilizer, 0.5-2 parts of coupling agent, 0.1-1 part of antioxidant, 0.5-2 parts of lubricant and 0.2-2 parts of mildewproof and antimicrobial agent. By using the natural fiber, which has the advantages of low price, abundant resources, high specific modulus and low density, to prepare the reinforced polypropylene composite material for vehicles, the production cost can be lowered. By using the combination of the alkali solution, coupling agent and compatilizer to treat the natural fiber, the hydroscopic property of the fiber is lowered. By adding the mildewproof and antimicrobial agent, the mildewproof and antimicrobial properties of the natural-fiber-reinforced polypropylene composite material with mildewproof and antibacterial functions can be greatly improved, so that the composite material is beneficial to human health in application, and has longer service life.

Description

technical field [0001] The invention belongs to the technical field of fiber composite materials, and relates to a natural fiber composite material with anti-mildew and antibacterial properties and a preparation method thereof. Background technique [0002] Natural fiber is a kind of renewable ecological and environmental protection material, because of its rich sources, environmental friendliness, easy degradation, low price, outstanding performance and other advantages, coupled with the enhancement of people's environmental protection awareness and the deepening of the concept of sustainable development, The rapid development of natural fiber reinforced composite materials. At present, natural fiber composite materials have been widely used in the fields of construction and transportation. Some developed countries such as Europe, the United States and Japan are currently vigorously promoting and developing natural fiber composite materials, especially some applications in...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L97/02C08L51/06C08K13/02C08K5/134C08K5/526C08K5/098C08K3/22C08J5/06
CPCC08L23/12C08J5/06C08J2323/12C08J2497/02C08K2201/011C08L2205/03C08L2205/16C08L97/02C08L51/06C08K13/02C08K5/1345C08K5/526C08K5/098C08K2003/2248
Inventor 巩祥壮周楠婷张祥福周文
Owner SHANGHAI PRET COMPOSITES
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