High temperature-resistant injection molded polypropylene material, and preparation method and application thereof
A polypropylene material and high-temperature-resistant technology, which is applied in the field of high-temperature-resistant injection-molded polypropylene material and its preparation, can solve problems such as rapid thermal decomposition, achieve reduced production cycle, extensive economic and social benefits, excellent mechanical properties and long-term effect Effect of Heat Aging Properties
Active Publication Date: 2019-09-13
中广核俊尔(浙江)新材料有限公司 +1
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Problems solved by technology
[0010] Aiming at the deficiencies in this field, the present invention provides a high-temperature-resistant injection-molded polypropylene material, which solves the problem of rapid thermal decomposition of ordinary polypropylene composite materials under high-temperature injection molding, and at the same time greatly improves the mechanical properties of the material. The long-term heat aging resistance of polypropylene composite materials can be used to prepare thin-walled plastic parts for automobiles
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[0035] Below in conjunction with specific embodiment, further illustrate the present invention. It should be understood that these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention. For the experimental methods without specific conditions indicated in the following examples, the conventional conditions or the conditions suggested by the manufacturer are usually followed.
[0036] The raw material formulations of the injection-molded polypropylene materials of the following Examples 1 to 6 and Comparative Example 1 are shown in Table 1, wherein the polypropylene is a copolymerized PP produced by Yanshan Petrochemical Company, the trade name is K7760, and the melt flow rate is 60g / 10min; the toughening agent is ethylene-octene copolymer (POE) produced by Dow Company of the United States, the trade name is ENGAGE 8150, and the density is 0.863g / cm 3 , the melt flow rate is 0.5g / 10min; talc powder is produ...
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Abstract
The invention discloses a high temperature-resistant injection molded polypropylene material. 100 wt% of raw materials of the high temperature-resistant injection molded polypropylene material comprises 55-85 wt% of polypropylene, 5-15 wt% of a toughening agent, 0-30 wt% of an inorganic filler, 0.1-3 wt% of a composite photothermal stabilizer, 0-5 wt% of color master batches and 0-5 wt% of other additives. The problem of rapid thermal decomposition of ordinary polypropylene composite materials under a high temperature injection molding condition is solved, and the long-term thermal aging resistance of the polypropylene composite material is greatly improved under the premise of ensuring mechanical properties. The invention also provides a preparation method of the high temperature-resistant injection molded polypropylene material. The preparation method comprises: uniformly mixing the raw materials in proportion, extruding the obtained mixture through a twin-screw extruder, and carrying out water cooling, pelletizing and drying to obtain the high temperature-resistant injection molded polypropylene material. The invention also provides an application of the high temperature-resistant injection molded polypropylene material in the production of automobile thin wall plastic parts.
Description
technical field [0001] The invention relates to the technical field of polypropylene composite materials, in particular to a high-temperature-resistant injection-molded polypropylene material and its preparation method and application. Background technique [0002] Under the double drive of environmental protection and energy saving, lightweight has developed into the development trend of the world's automobile industry. Automobile lightweight includes lightweight structural design and material selection. Under the premise of ensuring the strength and safety performance of the automobile, the vehicle's overall quality should be reduced as much as possible, so as to improve the power of the automobile, reduce fuel consumption, and reduce exhaust pollution. . Polypropylene is a general-purpose thermoplastic with excellent comprehensive properties. It has the characteristics of low price, light weight, solvent resistance, easy recycling, and non-toxicity. It is the most import...
Claims
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IPC IPC(8): C08L23/14C08L23/08C08K13/06C08K9/06C08K3/34C08K5/134C08K5/526C08K9/12C08K3/04
CPCC08L23/14C08L2201/08C08L23/0815C08K13/06C08K9/06C08K3/34C08K5/1345C08K5/526C08K9/12C08K3/04
Inventor 李俊陈晓敏郑京连安孝善孙心克周云国周志强
Owner 中广核俊尔(浙江)新材料有限公司