Weather-resistant polyvinyl chloride mixture and preparation method thereof
A technology of polyvinyl chloride and mixture, which is applied in the field of preparing high weather-resistant polyvinyl chloride mixture, which can solve the problems of yellowing of color and achieve the effect of improving weather resistance and service life
Active Publication Date: 2016-08-17
CHINA PETROLEUM & CHEM CORP +1
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
[0009] China has a vast territory and diverse climates. In the northwestern region, the radiation is very strong. PVC products with only titanium dioxide light shielding agent used in these areas for less than half a year may turn yellow in color, which will affect the use and cause problems for profile manufacturers, doors and windows. Disputes between manufacturers, users or developers
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment 1
[0045]
[0046] The weather resistance test result is: at 500h, the color difference is 2.7.
Embodiment 2
[0048]
[0049] The weather resistance test result is: at 500h, the color difference is 1.7.
Embodiment 3
[0051]
[0052] The weather resistance test results are: at 500h, the color difference is 2.5.
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The invention provides a weather-resistant polyvinyl chloride mixture and a preparation method thereof. The weather-resistant polyvinyl chloride mixture comprises polyvinyl chloride, a stabilizer, titanium dioxide, chlorinated polyethylene, an acrylate polymer, a light stabilizer and an optional antioxidant. The light stabilizer is selected from at least one of UV3346, UV 3346, UV 531, UV-5411 and UV-770, and preferably UV 3346 and / or UV-5411. The weather-resistant polyvinyl chloride mixture has a high wear resistance.
Description
technical field [0001] The invention relates to the preparation of a weather-resistant polyvinyl chloride mixture, in particular to a highly weather-resistant polyvinyl chloride mixture prepared by compounding ultraviolet absorbers. Background technique [0002] Polyvinyl chloride (PVC) is one of the five general-purpose synthetic resins in China. Its output is second only to polyethylene and polypropylene, ranking third in the world, accounting for about 30% of the total consumption of synthetic resins. PVC has been widely used in the fields of plastics and building materials due to its high strength, flame retardancy, corrosion resistance, wear resistance, good insulation and low price, such as building door and window frames, pipes, external wall hanging panels, etc., only construction The domestic annual output of PVC-U profiles for doors and windows reaches 4 million tons. [0003] At present, among PVC products, profiles for doors and windows have the highest requirem...
Claims
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IPC IPC(8): C08L27/06C08L23/28C08L51/00C08K13/02C08K3/22C08K3/26C08K5/134C08K5/524B29B7/00
Inventor 胡孝义武鹏孙泉李瑶杨宗林李生德魏若奇
Owner CHINA PETROLEUM & CHEM CORP