Low-odour glass-fiber-enhanced polypropylene composite material and preparation method thereof

A composite material and polypropylene technology, which is applied in the field of low-odor glass fiber reinforced polypropylene composite material and its preparation, achieves the effects of simple and easy preparation method, simple preparation process and low cost

Active Publication Date: 2014-04-23
TIANJIN KINGFA NEW MATERIAL +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The above-mentioned methods solve the odor problem of polypropylene materials to varying degrees. However, the above-mentioned methods only aim at t

Method used

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  • Low-odour glass-fiber-enhanced polypropylene composite material and preparation method thereof
  • Low-odour glass-fiber-enhanced polypropylene composite material and preparation method thereof
  • Low-odour glass-fiber-enhanced polypropylene composite material and preparation method thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0046] Preparation of jellyfish pellets:

[0047] Fully mix high-melt-strength polypropylene with different melt strengths and mineral fillers (talc powder, calcium carbonate or barium sulfate) according to the ratio shown in Table 1, extrude strip-shaped polypropylene in an extruder, and then Shred it into polypropylene pre-expanded granules; use water as a foaming agent to foam the polypropylene pre-expanded granules to prepare expanded polypropylene with high melt strength; Polypropylene and water were mixed in a high-speed mixer for 5-10 minutes. By controlling the mixing time, jellyfish particles with the water content shown in Table 1 were prepared and released for use.

[0048] Table 1 The content of each component of jellyfish pellets (weight percent)

[0049]

Embodiment 1-5

[0051] A kind of low odor glass fiber reinforced polypropylene composite material, its raw material formula is as shown in table 3, and its preparation method comprises the following steps:

[0052] (1) Weigh the polypropylene, compatibilizer, mineral filler and additives according to the weight percentage, and mix them in a high-speed mixer for 1-3 minutes; mix them evenly to obtain a premix;

[0053] (2) Put the premix into the main feeding port of the twin-screw extruder, add jellyfish pellets from the side feeding port, and feed the glass fiber from the side feeding port of the extruder, melt extrude, and granulate dry. Its performance test is shown in Table 4.

[0054] Among them, the copolymerized polypropylene in Example 1: AS164 (melt flow rate (230°C / 2.16kg) is 1.5g / 10min) selected from Singapore Polyolefin Company; the homopolymerized polypropylene is selected from EP540V (melt flow rate) of Moplen The rate (230°C / 2.16kg) is 87g / 10min).

Embodiment 2

[0055] Homopolypropylene in Example 2: selected from Sinopec Maoming HC9012-M (melt flow rate (230°C / 2.16kg) is 10g / 10min).

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Abstract

The invention discloses a low-odor glass-fiber-enhanced polypropylene composite material comprising the following components: 37-83% of polypropylene resin, 2-10% of a compatilizer, 5-40% of glass fiber, 0-20% of a mineral filler, 0.5-5% of jellyfish grains and 0.1-3% of an assistant; the preparation method is as follows: mixing the polypropylene resin, the compatibilizer, the mineral filler and the assistant in a high mixing machine for 1-3min; evenly mixing, putting the mixture into a main feeding port of a double screw extruder, adding the jellyfish grains from a side feeding port, and then adding the glass fiber from the side feeding port of the extruder for melt extrusion and drying granulation to obtain the low-odor glass-fiber-enhanced polypropylene composite material. The low-odor glass-fiber-enhanced polypropylene composite material uses the jellyfish grains, using high-melt foaming PP (polypropylene) as a carrier, as a stripping agent for effective removal of various volatile small molecules and organic compounds produced in the machining process, and the prepared glass-fiber-enhanced polypropylene composite material has the characteristics of low odor, excellent mechanical properties and the like.

Description

technical field [0001] The invention relates to a glass fiber reinforced polypropylene composite material, in particular to a low-odor glass fiber reinforced polypropylene composite material and a preparation method thereof. Background technique [0002] Glass fiber reinforced polypropylene has the advantages of high mechanical strength, good heat resistance, chemical corrosion resistance, dimensional stability, etc. It is widely used in household appliances, automobiles, machinery and other fields. The strength and modulus of glass fiber reinforced polypropylene are comparable to engineering plastics, which further expands the application prospects of reinforced polypropylene. In the application process of glass fiber materials used in automotive interior parts, in addition to good mechanical properties, processing properties, and weather resistance, they must also have good low volatility, and odor requirements are one of the evaluations of volatile substances. [0003] T...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L23/14C08L51/06C08K13/04C08K7/14C08K3/26C08K3/34C08K3/30C08J3/22C08J9/08B29C47/92B29C48/40B29C48/92
CPCB29C48/92C08J3/226C08J9/125C08L23/12C08L23/14C08J2323/12C08J2323/14C08J2203/10C08L2205/03C08L2205/025C08L2205/035C08L2205/08C08K2201/004C08K2201/003C08J2423/12B29C2948/92704B29C2948/9258C08L51/06C08K13/04C08K7/14B29B7/46B29B7/72B29B7/7461B29B7/90B29B9/06B29B9/12B29B9/14B29C48/875B29C48/04B29C48/40B29C2948/9259B29C2948/92619B29C2948/92885B29C2948/92895
Inventor 肖华明刘乐文陈国雄宋晓东李晟张春怀李欣陶四平
Owner TIANJIN KINGFA NEW MATERIAL
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