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Low-odor polypropylene composition as well as preparation method and application thereof

A polypropylene composition and low-odor technology, which is applied in the field of low-odor polypropylene composition and its preparation, can solve the problems of high odor and high TVOC of polypropylene composition, and achieve the effect of simple and easy preparation method and strong adsorption effect

Inactive Publication Date: 2021-08-13
KINGFA SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chinese patent CN105037941A discloses a low-VOC, low-odor wood fiber-reinforced polypropylene composite material and its preparation method, using polypropylene, wood fiber, odor absorbent, etc. to prepare a low-VOC, low-odor wood fiber-reinforced polypropylene composite material, However, the above-mentioned methods have solved the odor problem of polypropylene materials to a certain extent. However, the TVOC of the above-mentioned methods is still relatively high. Therefore, it is urgent to efficiently solve the problems of high odor and high TVOC of polypropylene compositions.

Method used

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  • Low-odor polypropylene composition as well as preparation method and application thereof
  • Low-odor polypropylene composition as well as preparation method and application thereof
  • Low-odor polypropylene composition as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0058] The preparation method of above-mentioned composite adsorbent:

[0059] At 50°C, nanometer metal oxides and cationic surfactant ammonium polycarboxylate were added and mixed according to the ratio of 1:0.02%, and stirred at high speed for 3 minutes, and then the zeolite powder and activated carbon were mixed in the mixer according to the ratio in Table 1. Fully stir for 5 minutes to form the first mixture; add nano-magnesium oxide to the first mixture according to the proportions in Table 1, and fully stir for 5 minutes at 60°C to prepare composite adsorbents with different proportions, and release the use.

Embodiment 1～10 and comparative example 1～5

[0061] A low-odor polypropylene composition, including components calculated in parts by weight as shown in Table 2 below.

[0062] Raw material formulation and consumption (parts by weight) of the polypropylene composition of each embodiment and comparative example of table 2

[0063]

[0064] The preparation method of above-mentioned low odor polypropylene composition, comprises the steps:

[0065] Weigh polypropylene resin, toughening agent, light stabilizer, heat stabilizer by weight percentage, mix 3min in high mixer; mix evenly, obtain premix; put the premix into twin-screw extruder The composite adsorbent is added from the side feed port, the temperature is controlled at 180°C to 210°C, and the screw speed is 450 rpm, melted and extruded, granulated, dried, and cooled to obtain a polypropylene composition. Among them, the components of the composite adsorbent A1 in the preparation process of Comparative Example 6 were not prepared in advance, but zeolite powder, act...

Embodiment 1

[0080] Comparing Example 1 with Comparative Example 1, it can be seen that the addition of the composite adsorbent in Example 1 can indeed effectively reduce various small volatile molecules and organic compounds in the polypropylene composition.

[0081] Comparing Example 1 with Comparative Example 2, the composite adsorbent of Comparative Example 2 does not add nanometer metal oxides, the acid absorption effect of the system is missing, the effect of absorbing odor is not good, and the tensile strength and flexural modulus are significantly reduced.

[0082] Comparing Example 1 with Comparative Example 3, the composite adsorbent of Comparative Example 3 added nano-magnesia with a larger particle size, the adsorption of the system to gas is relatively reduced, and the tensile strength and flexural modulus are also adversely affected.

[0083] Comparing Example 1 with Comparative Example 4, the amount of composite adsorbent used in Comparative Example 4 is too much, and the ads...

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Abstract

The invention discloses a low-odor polypropylene composition as well as a preparation method and an application thereof, polypropylene resin is used as a matrix, a composite adsorbent is added, and the composite adsorbent has an acid absorption effect, can inhibit degradation reaction of the polypropylene resin in the processing process, and has a relatively strong adsorption effect on various volatile components; along with the increase of the service time, small odor molecules cannot be gradually separated out, so that the obtained polypropylene composition has the characteristics of low odor and low TVOC, the mechanical property of the material cannot be influenced, in addition, the preparation method provided by the invention is simple and feasible, and the low-odor polypropylene composition provided by the invention can be used for preparing the automotive upholstery, the prepared product has the characteristics of low odor and low TVOC, and meets the odor standard of an automotive interior trim part material.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a low-odor polypropylene composition and its preparation method and application. Background technique [0002] Polypropylene (PP) material has been widely used in various assembly systems of automobiles due to its good comprehensive performance. Most of the automotive exterior and interior parts are injection molded using polypropylene composite materials. Automotive interior parts such as dashboards, pillars, glove boxes, door panels, etc., exterior parts such as bumpers, anti-scratch strips, spoilers, etc. [0003] In order to limit the odor of interior trim materials, the world's major automobile manufacturers have embarked on research work in this area, and have formed standards for regulating and controlling these volatile harmful substances, such as the German Volkswagen VW's PV3900E standard, Ford Motor's BO131-03 standard and General Motors' GMW3205 etc. The ...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L23/08C08K7/26C08K7/24C08K3/22
CPCC08L23/12C08K2003/222C08K2003/2296C08K2201/011C08K2201/005C08L2201/06
Inventor 陈嘉杰陈平绪叶南飚俞飞杨波吴国峰罗忠富陈延安
Owner KINGFA SCI & TECH CO LTD
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