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PVC film with self-cleaning function

A PVC resin powder and functional technology, which is applied in the field of chemical materials, can solve problems such as dust staining, dust accumulation on membrane materials, and affecting the service life of membrane materials, and achieve the effects of ensuring mechanical properties, improving static contact angles, and excellent self-cleaning performance

Pending Publication Date: 2022-05-13
浙江宏仕达科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, PVC film is used as a building material in the construction field, and there are the following problems: After being blown by wind or rain, the surface of the film will accumulate dust and dust, which will affect the service life of the film.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A PVC film with self-cleaning function, comprising the following raw materials in parts by weight: 80 parts of PVC resin powder, 20 parts of epoxy soybean oil, 20 parts of barium-zinc composite stabilizer, 15 parts of polyethersulfone and 1 part of polytrifluoropropylene Lithium methicone siloxane.

[0033] The preparation method with self-cleaning function PVC film in the present embodiment comprises the following steps:

[0034] (1) Send each raw material into the mixer according to the preset weight portion, and mix for 5 minutes at 1000r / min to obtain the PVC compound;

[0035] (2) Add the PVC compound obtained in the step (1) to a twin-screw extruder, the screw speed of the twin-screw extruder is 115r / min, and the temperature is 30°C, extruding, cooling, drying, A PVC film with self-cleaning function is obtained.

Embodiment 2

[0037] A PVC film with self-cleaning function, comprising the following raw materials in parts by weight: 100 parts of PVC resin powder, 22 parts of plasticizer, 22 parts of long-chain fatty acid salt, 16 parts of polyethersulfone and 2 parts of polytrifluoropropyl Lithium methyl siloxane silanolate.

[0038] The plasticizer is tris(2-chloropropyl) phosphate and dioctyl epoxy stearate terephthalate, wherein the ratio of the two is 1:1.

Embodiment 3

[0040] A PVC film with self-cleaning function, comprising the following raw materials in parts by weight: 100 parts of PVC resin powder, 22 parts of epoxy stearate, 22 parts of long-chain fatty acid salt, 20 parts of polyethersulfone and 3 parts of poly Potassium Dimethicone Siliconate.

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PUM

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Abstract

The invention provides a PVC film with a self-cleaning function, and belongs to the technical field of chemical materials. The invention discloses a PVC (polyvinyl chloride) composite material which comprises the following raw materials in parts by weight: 80-120 parts of PVC resin powder, 20-25 parts of a plasticizer, 20-25 parts of a stabilizer, 15-25 parts of polyethersulfone and 1-5 parts of fluorine-containing polysiloxane. The fluorine-containing polysiloxane forms relatively loose ion pairs, a micro-nano coarse structure simulating the lotus leaf surface is formed, the super-hydrophobic state is achieved, the static contact angle of water drops on the surface of the PVC film can be remarkably increased, more gas is intercepted, at the moment, the liquid drops are not prone to permeating into the coarse structure, and the PVC film has the excellent self-cleaning performance.

Description

technical field [0001] The invention belongs to the technical field of chemical materials and relates to a PVC film with self-cleaning function. Background technique [0002] The membrane structure building was developed in the 1950s. It is composed of a variety of high-strength film materials (such as polyvinyl chloride, ethylene-tetrafluoroethylene, polytetrafluoroethylene, etc.) cable, etc.), the space structure is formed by tensioning the membrane surface to generate pre-tension, or by inflating the air pressure difference between the inside and outside of the membrane structure. [0003] PVC film has the advantages of light weight, good light transmission and beautiful shape, and is widely used in modern buildings, such as gymnasiums, swimming pools, waiting airports, railway stations, exhibition centers, playgrounds and other places. At present, PVC film is used as a building material in the construction field, and there are the following problems: After being blown b...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08L81/06C08L83/08C08K3/22C08K3/34C08J5/18
CPCC08J5/18C08J2327/06C08J2481/06C08J2483/08C08K2003/2286C08K3/34
Inventor 方建专曾亮
Owner 浙江宏仕达科技股份有限公司
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