Low-diffusion polypropylene composition and preparation method thereof

A polypropylene composition and low emission technology, applied in the field of low emission polypropylene composition and the preparation of low emission polypropylene composition, can solve the problem that physical adsorption is not selective, cannot solve TVOC problems at the same time, and cannot add oil Substances and other problems, to achieve the effect of high product yield, low emission and TVOC reduction

Active Publication Date: 2011-07-13
CHENGDU KINGFA SCI & TECH ADVANCED MATERIALS CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the method of reducing TVOC through chemical reaction is often only aimed at one factor that produces TVOC, and cannot solve the TVOC problem produced by various factors at the same time; physical adsorpti

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Weigh the components according to the content percentage of the product components described in Table 1.

[0030] Put the above-mentioned polypropylene, toughening agent ethylene-butylene copolymer, phenolic antioxidant 1010, light stabilizer and hydroxyl polysiloxane into a high-speed mixer with a rotation speed of about 1000rpm and dry mix for 1 minute, then add The talc filler was mixed for an additional 3 minutes. Put the mixed raw materials in a twin-screw extruder, melt and extrude, and granulate. The process conditions are: 200°C in the first zone, 210°C in the second zone, 220°C in the third zone, and 215°C in the fourth zone; the residence time is 1 minute , the pressure is 10Mpa.

Embodiment 2

[0032] The components are weighed according to the content percentage of the product components described in Table 1, and the components are polypropylene, toughening agent ethylene-propylene-octene copolymer, phenolic antioxidant 1010, light stabilizer and methylpolyethylene silicone.

[0033] The preparation method is the same as claim 1.

Embodiment 3

[0035] Weigh the components according to the content percentage of the product components described in Table 1.

[0036] Put the above-mentioned polypropylene, toughening agent ethylene-hexene copolymer, phenolic antioxidant, light stabilizer and aminopolysiloxane into a high-speed mixer with a rotation speed of about 1000rpm and dry mix for 2 minutes, then add talc The powder filling was mixed for an additional 4 minutes. Put the mixed raw materials in a twin-screw extruder, melt and extrude, and granulate. The process conditions are: 215°C in the first zone, 210°C in the second zone, 210°C in the third zone, and 215°C in the fourth zone; the residence time is 2 minutes , the pressure is 11Mpa.

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PUM

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Abstract

The invention relates to a low-diffusion polypropylene composition which comprises the following components in percentage by weight: 55-99.8 percent of polypropylene composite material and 0.2-5 percent of organopolysiloxane silicone oil, wherein the organopolysiloxane silicone oil comprises one or a plurality of hydrogen-type polysiloxane, hydroxyl polysiloxane, methyl polysiloxane, ethenyl polysiloxane, amino polysiloxane, epoxy polysiloxane and methoxyl polysiloxane silicone oil. A preparation method of the low-diffusion polypropylene composition comprises the following steps of: weighing the components of polypropylene, talcum powder, a toughening agent, an antioxidant, a light stabilizer and the organopolysiloxane silicone oil in percentage by weight; mixing the polypropylene, the toughening agent, the antioxidant, the light stabilizer and the organopolysiloxane silicone oil for 1-2 minutes in a high speed mixer firstly and then adding the talcum powder and mixing for 3-5 minutes; and extruding and pelletizing the mixed materials by using a double screw extruder, wherein the process conditions are that: the temperature of a first area is 200-210 DEG C, the temperature of a second area is 210-220 DEG C, the temperature of a third area is 210-220 DEG C and the temperature of a fourth area is 200-215 DEG C, the retention time is 1-2 minutes, and the pressure is 10-20MPa. The low-diffusion polypropylene composition has the advantages that: the organopolysiloxane silicone oil forms a layer of even film on the surface of the talcum powder, which can block up a TVOC (Total Volatile Organic Compound) of the polypropylene material so as to reduce the pollution.

Description

technical field [0001] The present invention relates to a polypropylene composition, especially a low emission polypropylene composition. The invention also provides a preparation method of the low emission polypropylene composition. Background technique [0002] Because the car compartment is often in a closed state, the internal air quality is often affected by free formaldehyde, alkanes, benzene, toluene and other organic compounds (TVOC) produced by interior products such as leather seat covers or cloth seat covers, which have adverse effects on the human body . In order to reduce the TVOC content in the material, it is necessary to control the source of raw materials, processing technology, additives, etc., or add substances that can react with these small molecule volatile substances to form a larger molecular weight, which is less volatile and can be stably stored in the material. Compounds that are not easily volatile, so as to achieve the purpose of reducing TVOC....

Claims

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Application Information

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IPC IPC(8): C08L23/16C08L23/12C08L83/05C08L83/06C08L83/04C08L83/07C08L83/08C08K13/02C08K3/34B29C47/92B29C48/92
CPCB29C48/04B29C48/40B29C48/92B29C2948/92514B29C2948/92561B29C2948/92704B29C2948/92895
Inventor 杨波李永华丁超罗忠富陈延安黄达
Owner CHENGDU KINGFA SCI & TECH ADVANCED MATERIALS CO LTD
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