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Low-atomization polypropylene and preparation method thereof

A polypropylene and low-atomization technology, applied in the field of low-atomization polypropylene and its preparation, can solve the problems of inability to achieve low-atomization of polypropylene and high odor, and achieve no post-treatment process, low atomization, and obvious improvement in odor. Effect

Pending Publication Date: 2021-04-02
WUHAN JINFA TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it cannot achieve the low fogging of polypropylene, and the odor is still high

Method used

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  • Low-atomization polypropylene and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A kind of low atomization polypropylene, described low atomization polypropylene is to be made up of the component that comprises following parts by weight:

[0031] 98.5 parts of polypropylene; Described polypropylene is the polypropylene resin that melting point is at 33g / 10min;

[0032] 0.5 part of antioxidant; The antioxidant is 1010;

[0033] The processing aid is 0.5 part; the processing aid is 3808PP5;

[0034] 0.5 parts of odor adsorbent.

[0035] Described odor adsorbent is that 10g of nano-scale sodium-based montmorillonite is dissolved in 400mL of distilled water, 4g of cetyltrimethylammonium bromide and 2mL of concentrated hydrochloric acid are added to 100mL of distilled water; Drop into the solution of montmorillonite, stir with a magnetic stirrer at 70°C for 2h, or oscillate with an ultrasonic oscillator at 90% power for 1h; After being dried in medium for 12 hours, it is ground into powder to obtain the odor adsorbent;

[0036] The preparation method...

Embodiment 2

[0039] A kind of low atomization polypropylene, described low atomization polypropylene is to be made up of the component that comprises following parts by weight:

[0040] 98.5 parts of polypropylene; Described polypropylene is the polypropylene resin that melting point is at 33g / 10min;

[0041] 0.5 part of antioxidant; The antioxidant is 168;

[0042] Processing aid is 0.5 part; Described processing aid is zinc stearate;

[0043] 1 part of odor absorber.

[0044] The odor adsorbent is to dissolve 10g of nano-scale sodium montmorillonite in 400mL of distilled water, add 4g of alkylamine salt and 2mL of concentrated hydrochloric acid into 100mL of distilled water; drop the mixed solution into the montmorillonite The solution was oscillated by an ultrasonic oscillator at a power of 90% for 1 hour; after several times of suction filtration until no chloride ions existed in the solution, it was dried in an oven at 105°C for 12 hours and then ground into powder to obtain an odor...

Embodiment 3

[0048] A kind of low atomization polypropylene, described low atomization polypropylene is to be made up of the component that comprises following parts by weight:

[0049] 96 parts of polypropylene; said polypropylene is a polypropylene resin with a melt index of 20g / 10min;

[0050] 0.1 part of antioxidant; The antioxidant is 168;

[0051] Processing aid is 0.2 part; Described processing aid is zinc stearate;

[0052] 1 part of odor absorber.

[0053]Described odor adsorbent is that 10g of nano-scale sodium-based montmorillonite is dissolved in 400mL of distilled water, 4g of cetyltrimethylammonium bromide and 2mL of concentrated hydrochloric acid are added to 100mL of distilled water; Drop into the solution of montmorillonite, stir with a magnetic stirrer at 70°C for 2h, or oscillate with an ultrasonic oscillator at 90% power for 1h; After being dried in medium for 12 hours, it is ground into powder to obtain the odor adsorbent;

[0054] The preparation method of describ...

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Abstract

The invention belongs to the field of low-atomization PP materials, and particularly relates to low-atomization polypropylene and a preparation method thereof. The polypropylene provided by the invention is prepared from the following components in parts by weight: 96-99.75 parts of polypropylene; 0.1-5 parts of antioxidant, 0.1-5 parts of processing aid, and 0.05-3 parts of odor adsorbent. The preparation method comprises the following steps: uniformly mixing 96-99.75 parts of polypropylene, 0.1-0.5 part of the antioxidant, 0.1-0.5 part of the processing aid and 0.05-3 parts of the odor adsorbent, carrying out melt extrusion by using a modified 48: 1 double-screw extruder, and granulating to obtain the low-atomization polypropylene. Compared with the prior art, composite modification of montmorillonite is achieved by combining formula design and the manufacturing process, low atomization of polypropylene is achieved by improving dispersion of nanoscale montmorillonite in PP, and the polypropylene has the advantages of being obvious in smell improvement, free of post-treatment procedures and the like.

Description

technical field [0001] The invention belongs to the technical field of PP materials. More specifically, it relates to a low-fogging polypropylene and a preparation method thereof. Background technique [0002] With the rapid development of the automobile industry and the increasing requirements of domestic environmental protection, higher requirements are put forward for the environmental protection of automobiles. As a common material for auto parts, modified polypropylene has the outstanding advantages of wide source, low density, good mechanical balance, chemical corrosion resistance, easy processing and low price. However, polypropylene materials for automotive interiors will inevitably produce a large number of volatile small organic molecules during the synthesis, modification, injection molding and other processes, and the environment inside the car is relatively closed, which will lead to excessive organic emissions in the car, thus affecting The health of passenge...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08K9/04C08K9/02C08K7/26C08K3/34C08K5/134C08K5/526
CPCC08K9/04C08K9/02C08K7/26C08K3/346C08K5/1345C08K5/526C08K2201/011C08L23/12
Inventor 熊值付伟何浏炜程文超赖昂陈瑶陈胜杰
Owner WUHAN JINFA TECH CO LTD