Glass fiber reinforced polypropylene material, and preparation method and preparation device thereof
A polypropylene material and technology for preparing equipment, applied in the direction of coating, etc., can solve the problems of low bending strength and impact strength, easy occurrence of white spots on parts, complicated process equipment, etc. Exposed, good glass fiber dispersion effect
Inactive Publication Date: 2020-11-13
GUANGDONG JUSHI CHEM CO LTD
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
At present, short glass fiber reinforced polypropylene generally uses chopped glass fiber with a glass fiber length of 3.0-4.5mm, and the form of glass fiber added by side feeding is used. The product performance is better than continuous glass fiber reinforced polypropylene, and the process equipment is relatively simple. However, the bending strength and impact strength are significantly low
Method used
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Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1-3
[0043] Examples 1-3 are all one embodiment of the preparation method of the glass fiber reinforced polypropylene material of the present invention, and the composition of raw materials used in these preparation methods is shown in Table 1.
[0044] Table 1 The raw material composition / weight part of the glass fiber reinforced polypropylene material of Examples 1-3 and Comparative Examples 1-5
[0045]
[0046]
[0047] combined with figure 1 The preparation method of embodiment 1-3 glass fiber reinforced polypropylene material is illustrated, and these preparation methods comprise the following steps:
[0048] (1) Put polypropylene, compatibilizer and other additives into the mixer, mix and stir, and then discharge the material from the outlet of the mixer into the 1# automatic weighing scale, and control these uniformly mixed materials from the main feeder through the PLC system The feed port enters the twin-screw extruder; the chopped glass fiber is transported to the...
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Abstract
The invention discloses a glass fiber reinforced polypropylene material, and a preparation method and a preparation device thereof. According to the preparation method provided by the invention, polypropylene, compatilizer, chopped glass fiber and other auxiliaries are subjected to melting plasticizing in a double-screw extruder, after a glass fiber reinforced polypropylene material melt is formed, the melt is extruded after orderly passing through a connection board, a machine head and a discharge port die of the double-screw extruder, then, the extruded material is orderly subjected to cooling, blowing to dry, chopping into particles, screening and mixing, and thus, the glass fiber reinforced polypropylene material is obtained, wherein a middle region of the connection board is providedwith a discharging through hole occupying 50-80% of area of the connection board, a die hole diameter of the discharging port die is 7-15mm, particle length of the particles obtained through choppingis 8-10mm, length of the chopped glass fiber is protected to the greatest extent, reinforcing performance of the chopped glass fiber to the polypropylene is guaranteed, consequently, the glass fiber reinforced polypropylene material has high bending strength and impact strength, moreover, the preparation method is simple, equipment investment is low, so, the glass fiber reinforced polypropylene material can be widely used in a car panel, a storage battery shell, a home appliance pedestal, and so on.
Description
technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a glass fiber reinforced polypropylene material, a preparation method and a preparation device thereof. Background technique [0002] Polypropylene is one of the five general-purpose resins. It has the advantages of light weight, easy processing, and good chemical resistance. It has been widely used in chemical, electrical, packaging and other industrial fields. However, with the gradual expansion of the demand for polypropylene in construction, automobile, shipbuilding and other industries, people put forward higher requirements for its performance. Generally, polypropylene can be modified to meet more applications through reinforcement, toughening, blending and other modification methods. . [0003] As a general-purpose engineering plastic, glass fiber-reinforced polypropylene has excellent properties such as high strength, high stiffness, rigid impact st...
Claims
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Patent Timeline
Login to View More IPC IPC(8): B29C48/05B29C48/00B29B9/06B29B9/16
CPCB29B9/06B29B9/16B29C48/0022B29C48/05
Inventor 沈旭渠陈锐彬张翼翔蔡志勇何子豪刘鹏辉樊凯汪洋田凯丽
Owner GUANGDONG JUSHI CHEM CO LTD