Spray coating-free propene polymer (PP) material with high gloss and metal or pearly-lustre flashing effect and preparation method thereof
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A high-gloss, spray-free technology, applied in the field of PP materials, to achieve good appearance, cost reduction, and low cost effects
Active Publication Date: 2013-02-27
上海日之升科技有限公司
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Abstract
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Problems solved by technology
The polypropylene composition eliminates the spraying operation and can obtain the appearance of the shiny metallic texture
Method used
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Embodiment 1
[0043] Example 1 Preparation of PP material of the present invention (1)
[0044] 1) Weigh the raw materials according to the following weight percentages: 97% of random copolymerized polypropylene (MI is 10g / 10min), 0.3% of antioxidant 168, 0.5% of antioxidant 1010, 0.7% of lubricating and dispersing agent TAF, put into high-mixing Mix in the machine for 3 minutes, then add 1.0% by weight of aluminum powder and 0.5% of pearl powder, and discharge;
[0045] 2) Put the raw materials mixed in step 1) into a twin-screw machine for extrusion and granulation. The speed of the twin-screw machine is 35HZ and the temperature is 215-230°C.
Embodiment 2
[0046] Example 2 Preparation of PP material of the present invention (2)
[0047] 1) Weigh raw materials according to the following weight percentages: random copolymerized polypropylene (MI is 10g / 10min) 98.5%, antioxidant 168 0.1%, antioxidant 1010 0.2%, lubricating and dispersing agent TAF 0.2%, put into high-mixing Mix in the machine for 2 minutes, then add 1.0% metal aluminum powder by weight, and discharge;
[0048] 2) Put the raw materials mixed in step 1) into a twin-screw machine for extrusion and granulation. The speed of the twin-screw machine is 40HZ, and the temperature is 215-230°C.
Embodiment 3
[0049] Example 3 Preparation of PP material of the present invention (3)
[0050] 1) Weigh the raw materials according to the following weight percentage: 99% random copolymerized polypropylene (MI is 9g / 10min), 0.1% antioxidant 168, 0.2% antioxidant 1010, 0.2% lubricating and dispersing agent TAF, put into high-mixing Mix in the machine for 5 minutes, then add 0.5% pearlescent powder by weight, and discharge;
[0051]2) Put the raw materials mixed in step 1) into a twin-screw machine for extrusion and granulation. The speed of the twin-screw machine is 37HZ and the temperature is 215-230°C.
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Abstract
The invention provides a spray coating-free propene polymer (PP) material with high gloss and a metal or pearly-lustre flashing effect. The material consists of the following substances by weight percent: 97-99% of PP, 0.1-0.3% of antioxidant 168, 0.1-0.5% of antioxidant 1010, 0.1-1% of lubricating dispersing agent TAF and 0.3-1.5% of effect pigment. The invention further provides a method for preparing the PP material. The PP material has the advantages that the PP material can be directly injected without spray coating, so that high gloss, pearly-lustre flashing and a metal painting effect can be obtained, and the PP material is attractive in appearance; compared with a painting technology, the cost is saved, and the depainting problem during the use process of a produce is avoided; and through the coordination of a highlight mirror plane die and high die temperature forming conditions, the problems of the welding lines and flow lines of the product can also be solved, and the spray coating is really not needed, so that the PP material has a wide application prospect in the fields of household appliances, automobiles, sports goods and the like.
Description
technical field [0001] The invention relates to a PP material, in particular to a spray-free PP material with high gloss, metallic or pearlescent flashing effects and a preparation method thereof. Background technique [0002] In recent years, appearances such as shimmering colors and metallic effects are becoming a new fashion in commodity industries such as home appliances, electronics and offices. For colorful shimmering effects, conventional spraying techniques can be used. However, due to the complicated spraying process and process, the volatilization of the primer solvent pollutes the environment, the production is not environmentally friendly and the cost is high, and there are defects such as high defect rate and difficult recycling, so more and more manufacturers are seeking new alternative technologies To bring beautiful color effect to the product. [0003] Chinese patent document CN 200810039829.7, application date 2008-06-30, discloses a heat-resistant high-g...
Claims
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Application Information
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