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Weather-resistant decorative film and preparation method thereof
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A decorative film and weather-resistant technology, applied in the field of decoration, can solve the problems of high price, yellowing and graying of doors and windows, and achieve the effect of reducing production costs, improving weather resistance, and realistic patterns
Inactive Publication Date: 2017-03-15
SUZHOU LUORUIKA NEW MATERIAL TECH CO LTD
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Problems solved by technology
[0003] At present, the decorative protective film used in decorative materials, especially on metal materials, is generally PVC film. This film is composed of a PVC bottom layer, a printing layer and a PMMA surface layer. However, due to its complex structure and high price, it has not been widely distributed. promotion and application
After continuous research and testing, people found that both ASA and PMMA materials have good weather resistance and stable mechanical properties, so they are used in the field of decorative films. The commonly used technology is to directly bond PVC and PMMA\PVDF. , due to the limitation of simple physical bonding, when these decorative films are used for a period of time, it is found that the doors and windows will appear yellowing, graying, weathering, delamination and other typical aging phenomena
Method used
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Embodiment 1
[0019] In the first step, the constituent materials, ASA and PVC, are dried at 80-90°C for 3-5 hours for subsequent co-extrusion;
[0020] The second step is to mix the dried ASA and PVC in a certain proportion, lay a layer of PVC on the top of one layer of ASA, and then continue to spread another layer of ASA, and pass through two extruders under the environmental conditions of 185-230°C. co-extrusion;
[0021] In the third step, the co-extruded profiles are sequentially processed through calendering, casting, calendering, film blowing, etc., wherein the roller temperature is 100°C and the line speed is 20 m / min;
[0022] The fourth step is to trim the edge with a disc knife;
[0023] The fifth step, winding: 500-1000 m / roll.
Embodiment 2
[0025] The first step is to dry the constituent materials such as ASA, PVDF, PMMA and PVC at 80-90°C for 3-5 hours;
[0026] In the second step, the dried ASA, PVDF, PMMA and PVC are mixed according to a certain ratio, specifically 3 layers of ASA, 1 layer of PVC, 1 layer of PMMA and 1 layer of PVDF, respectively, under the environmental conditions of 185-230 ℃, Co-extruded by two or three extruders;
[0027] In the third step, the co-extruded profiles are sequentially processed through calendering, casting, calendering, film blowing, etc., wherein the temperature of the roller is 110°C, and the line speed is 15 m / min;
[0028] The fourth step is to trim the edge with a disc knife;
[0029] The fifth step, winding: 500-1000 m / roll.
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Abstract
The invention relates to a weather-resistant decorative film and a preparation method thereof. The weather-resistant decorative film comprises one or more of ASA, PVDF, PMMA and PVC and all the components are distributed in layers. The preparation method of the weather-resistant decorative film comprises raw materialdrying, extrusion, rolling, curtain coating, calendering, film blowing, edge cutting and winding. Compared with the existing decorative film, the weather-resistant decorative film is prepared from ASA and PVDF\PMMA\PVC through co-extrusion, rolling, curtain coating and film blowing so that a production cost is reduced. The weather-resistant decorative film is not easy to layer and has realistic patterns, scratch resistance and good weather resistance.
Description
technical field [0001] The invention relates to the field of decoration, in particular to a weather-resistant decorative film and a preparation method. Background technique [0002] With the rapid development of global economy and technology, people's quality of life is constantly improving, and the use of home decoration materials is becoming more and more extensive. Among them, the plastic decorative film is widely used in many fields due to its low cost. [0003] At present, the decorative protective film used in decorative materials, especially on metal materials, is generally PVC film. This film is composed of a PVC bottom layer, a printing layer and a PMMA surface layer. However, due to its complex structure and high price, it has not been widely distributed. promotion and application. After continuous research and testing, people found that both ASA and PMMA materials have good weather resistance and stable mechanical properties, so they are used in the field of dec...
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
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Application Information
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