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Preparation method of low-VOC (volatile organic compound) antimicrobial glass-fiber-reinforced polypropylene (PP) composite material

A composite material, polypropylene technology, applied in the field of preparation of low-VOC, antibacterial glass fiber reinforced polypropylene composite materials, can solve the problems of VOC substances, discount of adsorption and degradation ability, easy aggregation of nano-inorganic powder, etc., to achieve Excellent antibacterial effect, reduced density, and less abrasion

Inactive Publication Date: 2016-10-26
SUZHOU RONGCHANG COMPOUND MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, reducing VOC by controlling the source of raw materials only solves one factor of VOC generation, and cannot solve the newly generated VOC substances in the process
The adsorption method, whether it is physical adsorption or chemical adsorption, has the problem of selectivity and balance of adsorption.
Chinese patent CN105001525 A by adding at least one of activated carbon, molecular sieve, zeolite powder and nano inorganic powder (TiO 2 or ZnO) to reduce odor and VOC, the former is mainly used for adsorption, and the latter is mainly used for adsorption and degradation of VOC, but the 20-80nm nano-inorganic powder is easy to agglomerate, and its ability to absorb and degrade is greatly reduced. And without modification, it needs to be excited by ultraviolet light to play a role, so the effect is very limited
However, the low-molecular organic repellant used in this method has compatibility problems with the polypropylene resin and the carbonates and their decomposition products, and water and fatty alcohols with a boiling point lower than 200°C, due to their low boiling point and And the premix is ​​added to the extruder in the main feed, then there are problems with the durability and uniformity of the melt of the modified polypropylene material
The above invention only improves a certain factor that generates VOC, and cannot solve the problem of VOC generated in both raw materials and production processes at the same time

Method used

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  • Preparation method of low-VOC (volatile organic compound) antimicrobial glass-fiber-reinforced polypropylene (PP) composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] First prepare glass fiber reinforced polypropylene masterbatch, weigh dry polypropylene 4000g, long glass fiber 5100g, mica powder 420g, antioxidant 1010 60g, anti-ultraviolet additive CYASORB UV-V680 60g, silver-loaded carbon microsphere antibacterial agent 160g After mixing evenly, add a twin-screw extruder to melt and blend at 195°C, extrude through the extruder, cool and pelletize to obtain glass fiber reinforced polypropylene masterbatch;

[0029] Next, prepare hollow glass microsphere master batches, weigh and mix 720g of dried hollow glass microspheres and 330g of VOC inhibitors evenly, then add them to a twin-screw extruder for melting and blending at 195°C, extrude, cool and pelletize to obtain hollow glass Microbead masterbatch, wherein the mass of the 720g hollow glass microsphere surface compatibilizer PP-g-MAH accounts for 320g, and the VOC inhibitor is composed of nano Composed of photocatalyst, attapulgite, sepiolite and diatomite;

[0030]Composite mate...

Embodiment 2

[0032] First prepare glass fiber reinforced polypropylene masterbatch, weigh dry polypropylene 6500g, long glass fiber 2300g, antioxidant 1010 20g, anti-ultraviolet additive CYASORB UV-V680 40g, silver-loaded carbon microsphere antibacterial agent 200g and mix evenly, Add the twin-screw extruder to melt and blend at 210°C, extrude through the extruder, cool and pelletize to obtain glass fiber reinforced polypropylene masterbatch;

[0033] Next, prepare hollow glass microsphere master batches, weigh and mix 650g of dried hollow glass microspheres and 230g of VOC inhibitors evenly, then add them to a twin-screw extruder for melting and blending at 195°C, extrude, cool and pelletize to obtain hollow glass Microbead masterbatch, wherein the quality of the 650g hollow glass microsphere surface compatibilizer PP-g-MAH accounts for 170g, and the VOC inhibitor is composed of nano Composed of photocatalyst, attapulgite, sepiolite and diatomite;

[0034] Composite material preparation,...

Embodiment 3

[0036] First prepare glass fiber reinforced polypropylene masterbatch, weigh dry polypropylene 6700g, long glass fiber 3400g, mica powder 200g, antioxidant 1010 40g, anti-ultraviolet additive CYASORB UV-V680 30g, silver-loaded carbon nanotube antibacterial agent 290g After mixing evenly, add the twin-screw extruder to melt and blend at 210°C, extrude through the extruder, cool and pelletize to obtain glass fiber reinforced polypropylene masterbatch;

[0037] Next, prepare hollow glass microsphere master batches, weigh and mix 1050g of dried hollow glass microspheres and 320g of VOC inhibitors evenly, then add them to a twin-screw extruder for melt blending at 195°C, extrude, cool and pelletize to obtain hollow glass Microbead masterbatch, wherein the quality of the 1050g hollow glass microsphere surface compatibilizer PP-g-MAH accounts for 320g, and the VOC inhibitor is composed of nano Composed of photocatalyst, attapulgite, sepiolite and diatomite;

[0038] Composite materi...

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Abstract

The invention discloses a preparation method of a low-VOC (volatile organic compound) antimicrobial glass-fiber-reinforced polypropylene (PP) composite material. The preparation method comprises the following steps: drying raw materials; respectively carrying out melt blending by a double screw extruder to prepare a glass-fiber-reinforced PP master batch and a hollow glass microsphere master batch; and mixing the glass-fiber-reinforced PP master batch and hollow glass microsphere master batch, and carrying out injection molding by a single-screw injection molding machine to obtain the low-VOC antimicrobial glass-fiber-reinforced PP composite material. The composite material obtained by the preparation method can catalytically degrade VOCs in the vehicles in a high-efficiency energy-saving environment-friendly way without the aid of any external ultraviolet light source or facility. The added compatilizer-coated hollow glass microspheres have favorable compatibility with the glass-fiber-reinforced PP on the premise of not lowering the strength of the composite material, and can effectively lower the density; and the addition of a small amount of the silver-carried antimicrobial agent greatly enhances the antimicrobial property. The preparation method disclosed by the invention is simple and reliable.

Description

technical field [0001] The invention belongs to the field of polymer materials, and in particular relates to a preparation method of a low-VOC, antibacterial glass fiber reinforced polypropylene composite material. Background technique [0002] With the rapid development of social economy, cars have become indispensable in people's lives. Since modern people stay in the car for a long time every day, the air quality inside the car is closely related to human health. There are two main factors that affect the air quality in the car: one is the release of harmful gases from the interior of the car itself; the other is the release of harmful gases from the car decorations selected by the car owner. In the final analysis, these two aspects are the volatilization of harmful gases in automobile interior decoration parts. The harmful gases are mainly volatile organic compounds (volatile organic compounds), that is, VOC. WHO defines VOC as volatile compounds with a boiling point be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L51/06C08K13/06C08K9/10C08K7/14C08K7/28C08K3/34C08K3/22C08K3/08
CPCC08L23/12C08K2201/011C08K2201/014C08L51/06C08K13/06C08K9/10C08K7/14C08K7/28C08K3/346C08K3/34C08K2003/2237C08K2003/0806
Inventor 黄仁军资玉明朱正华
Owner SUZHOU RONGCHANG COMPOUND MATERIAL
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