PVC film and preparation method thereof
A technology of PVC resin powder and flame retardant plasticizer, applied in the field of PVC film and its preparation, can solve the problems of accelerated precipitation, reduced transparency, failure to meet the flame retardant requirements of building materials, etc., achieve good transparency and improve precipitation problems , Improve the effect of product fogging
Active Publication Date: 2021-06-22
广州雷诺丽特塑料有限公司
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Problems solved by technology
However, soft high-oil products often cannot meet the flame retardant requirements of building materials, which affects their application in public places
Especially on the soft transparent antibacterial film, traditional inorganic flame retardants cannot be used due to their opacity, and environmentally friendly phosphate flame retardants with good transparency, because of their small molecular weight and high volatility, can be used directly in high oil When used alone in a soft product, its dosage is relatively large, and the precipitation will be accelerated during the production process, resulting in fogging on the surface of the product and greatly reducing the transparency
This kind of transparent antibacterial PVC film often cannot balance high oil content and high flame retardancy, thus limiting its application
Method used
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Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1～6
[0017] Examples of the PVC film of the present invention, the formulations of Examples 1 to 6 are shown in Table 1, and the preparation method is as follows: mixing in a mixer, the mixing temperature is not higher than 120 ° C, and then mixing in a planetary extruder Plasticizing, mixing rubber in a double-roller mill, filtering in a filter, the filtration temperature is not higher than 170 ° C, and then rolling with a calender wheel at 200 ° C and 15 m / min, embossing with an embossing wheel, and cooling. The temperature of the cooling wheel is 20° C., and the PVC film is obtained by cutting and winding at a speed of 25 m / min. The thickness of the PVC film prepared by this method is 0.3 mm.
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Abstract
The invention discloses a PVC film and a preparation method thereof, and relates to the technical field of high polymer materials. The PVC film comprises the following components in parts by weight: 100 parts of PVC resin powder, 30-35 parts of a common plasticizer, 18-24 parts of a flame-retardant plasticizer, 0-5 parts of epoxidized soybean oil, 0.5-8 parts of an organic antibacterial agent and 0-1 part of an inorganic filler, the flame-retardant plasticizer is prepared from tris (2-chloropropyl) phosphate and isopropyl triphenyl phosphate. The PVC film prepared according to the formula disclosed by the invention has good antibacterial and flame-retardant properties and relatively high transparency, and is suitable for public places such as hospitals, schools and shopping malls.
Description
technical field [0001] The invention relates to the technical field of polymer materials, in particular to a PVC film and a preparation method thereof. Background technique [0002] With the rapid development of society, economy and transportation, various entertainment activities, cultural activities, exhibitions and other activities have pushed the closeness of people's communication to an unprecedented height, followed by the infection probability and transmission route of bacteria or viruses It has also increased greatly, and virtually increased the cost of living, affecting people's normal work and life, and even disrupting the economic order of society, leading to economic regression. Antibacterial PVC film can greatly improve this situation. However, in order to expand the application range of antibacterial PVC film, it is also required to have soft, transparent and flame-retardant properties. However, soft high-oil products often cannot meet the flame retardant requ...
Claims
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IPC IPC(8): C08L27/06C08L91/00C08K5/47C08K3/34C08K5/521C08K5/523C08K13/02C08J5/18
CPCC08J5/18C08J2327/06C08J2491/00C08K5/47C08K3/34C08K2201/011C08K5/521C08K5/523C08K13/02
Inventor 江溪
Owner 广州雷诺丽特塑料有限公司