WO2019129165A1 - Composition de polypropylène, son procédé de préparation et application associée - Google Patents

Composition de polypropylène, son procédé de préparation et application associée Download PDF

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Publication number
WO2019129165A1
WO2019129165A1 PCT/CN2018/124515 CN2018124515W WO2019129165A1 WO 2019129165 A1 WO2019129165 A1 WO 2019129165A1 CN 2018124515 W CN2018124515 W CN 2018124515W WO 2019129165 A1 WO2019129165 A1 WO 2019129165A1
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Prior art keywords
polypropylene
antioxidant
polypropylene composition
elastomer
parts
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PCT/CN2018/124515
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English (en)
Chinese (zh)
Inventor
苏娟霞
杨波
谢正瑞
孙刚
林洁龙
雷亮
李振华
卢朝亮
罗忠富
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金发科技股份有限公司
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Publication of WO2019129165A1 publication Critical patent/WO2019129165A1/fr

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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/10—Homopolymers or copolymers of propene
    • C08L23/12—Polypropene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/08—Copolymers of ethene
    • C08L23/0807—Copolymers of ethene with unsaturated hydrocarbons only containing more than three carbon atoms
    • C08L23/0815—Copolymers of ethene with aliphatic 1-olefins
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/002—Physical properties
    • C08K2201/003—Additives being defined by their diameter

Definitions

  • the invention relates to a polypropylene composition and a preparation method and application thereof, in particular to an ultra-low atomization vehicle polypropylene composition and a preparation method and application thereof.
  • Polypropylene has the advantages of low cost, light weight, high strength, good chemical resistance, good processing technology and easy recycling. It has been widely used in automotive parts in recent years. Talc-filled elastomer-toughened polypropylene composites are commonly used in the preparation of door panels, columns, instrument panels, bumpers, and the like. With the implementation of the mandatory national standard “Guidelines for Air Quality Assessment in Passenger Vehicles”, the requirements of volatile substances such as odor, VOC and atomization of interior parts are becoming stricter. Atomization refers to the phenomenon that organic substances contained in automotive interior parts are vaporized and volatilized at a certain temperature, and then condensed on the glass. In the summer, the temperature of automotive interior parts such as instrument panels can be as high as 80 ° C.
  • the present invention provides a polypropylene composition
  • a polypropylene composition comprising polypropylene having a molecular weight distribution index Mw/Mn of not more than 5.
  • the present invention strictly controls the molecular weight distribution of the polypropylene, and controls the low molecular weight of the polypropylene by controlling the molecular weight distribution.
  • the polypropylene of the present invention has a molecular weight distribution index Mw/Mn of not more than 5, and the resulting polypropylene composition has an ultra-low degree of atomization.
  • the polypropylene used in the present invention may be a metallocene-catalyzed synthetic polypropylene or a Ziegler-Natta catalyzed synthetic polypropylene.
  • the polypropylene has a molecular weight distribution index Mw/Mn of from 1 to 5. More preferably, the polypropylene has a molecular weight distribution index Mw/Mn of from 1 to 3.5.
  • Mw is a weight average molecular weight
  • Mn is a number average molecular weight.
  • the molecular weight distribution index Mw/Mn of the polypropylene is selected. It is 1-5, preferably 1-3.5.
  • the polypropylene composition comprises the following components by weight: 29 to 90 parts of polypropylene, 5 to 30 parts of an elastomer, 5 to 40 parts of a filler, and processed. 0.1 to 1 part of the auxiliary.
  • polypropylene composition of the present invention at least one of the following (a) to (c):
  • the elastomer has a density of from 0.850 to 0.900 g/cm 3 , the elastomer has a melt mass flow rate of from 0.5 to 1.2 g/10 min, and the melt mass flow rate is 2.16 kg weight according to ISO 1133 and The temperature is measured at 190 ° C;
  • the elastomer is an ethylene-propylene copolymer, an ethylene-hexene copolymer, an ethylene-butene copolymer, an ethylene-octene copolymer, a styrene-butadiene-styrene copolymer, At least one of hydrogenated styrene-butadiene-styrene copolymers;
  • the filler is spherical, flake or needle-shaped, the filler is at least one of talc, calcium carbonate, wollastonite, barium sulfate, mica, silicon micropowder, silica, montmorillonite;
  • the processing aid includes an antioxidant and a light stabilizer.
  • the filler has an average particle diameter D50 of 2 to 20 ⁇ m;
  • the antioxidant is composed of a hindered phenol antioxidant and a phosphite antioxidant.
  • the weight ratio of the hindered phenolic antioxidant to the phosphite antioxidant is 1: (1 to 2);
  • the light stabilizer is a hindered amine light stabilizer.
  • the polypropylene composition is composed of the following components by weight: 44.5 parts of polypropylene, 15 parts of elastomer, 40 parts of filler, and 0.5 part of processing aid;
  • the polypropylene has a molecular weight distribution index Mw/Mn of 1;
  • the elastomer is an ethylene-butene copolymer, the elastomer has a density of 0.862 g/cm 3 , and the melt mass flow rate of the elastomer is 1.2 g/10 min, the melt mass flow rate is measured according to ISO 1133 using a weight of 2.16 kg and measured at a temperature of 190 ° C;
  • the filler is a silicon micropowder;
  • the processing aid consists of an antioxidant and a light stabilizer, the antioxidant
  • the agent is composed of an antioxidant 1010 and an antioxidant 168, the weight ratio of the antioxidant 1010 to the antioxidant 168 is 1:2; and the light stabilizer is a hindered amine UV
  • the present invention provides a method of preparing the above polypropylene composition, comprising the steps of:
  • step (2) The premix obtained in the step (1) is melt-extruded through a twin-screw extruder, and the polypropylene composition is obtained by vacuum granulation; wherein the temperature of each screw of the twin-screw extruder is 190 ⁇ 230 ° C.
  • the present invention provides the use of the above polypropylene composition for the preparation of automotive interior parts.
  • the vehicular interior parts are an instrument panel, a sub-dashboard, a column, a glove box, a door panel, a door sill, and a lamp bracket.
  • the present invention provides a vehicular interior trim comprising the above polypropylene composition.
  • the present invention has an ultra-low atomization degree by defining a molecular weight distribution of a polypropylene raw material by using the obtained polypropylene composition;
  • the polypropylene composition of the present invention can be widely applied to the production of automotive interior parts such as instrument panels, sub-dashboards, columns, glove boxes, door panels, door sills, and lamp brackets, and is particularly suitable for automotive interior parts. .
  • the polypropylene molecular weight distribution Mw/Mn is determined by gel permeation chromatography at a temperature of 135 ° C and the solvent is 1,3,4-trichlorobenzene; the melt mass flow rate (MFR) of the elastomer is based on ISO 1133 was measured using a weight of 2.16 kg and measured at a temperature of 190 °C.
  • polypropylene composition of the present embodiment is composed of the following components by weight: 29 parts of polypropylene, 30 parts of elastomer, 40 parts of filler, and 1 part of processing aid;
  • polypropylene is synthesized by Ziegler-Natta, the molecular weight distribution index of polypropylene is Mw/Mn is 3.5; the elastomer is ethylene-butene copolymer, the density of the elastomer is 0.865g/cm 3 , MFR (190 ° C) , 2.16kg) is 0.5g/10min; the filler is talc, flake, the average particle diameter D50 of the filler is 10 ⁇ m; the processing aid is composed of an antioxidant and a light stabilizer, and the antioxidant is composed of the antioxidant 1010 and The antioxidant 168 is composed of a weight ratio of the antioxidant 1010 to the antioxidant 168 of 1:1; and the light stabilizer is a hindered amine UV-3853.
  • step (2) The premix obtained in the step (1) is melt-extruded through a twin-screw extruder, and the polypropylene composition is obtained by vacuum granulation; wherein the temperature of each screw of the twin-screw extruder is 190 ⁇ 230 ° C.
  • the polypropylene composition of the present embodiment is composed of the following components by weight: 49.5 parts of polypropylene, 30 parts of elastomer, 20 parts of filler, 0.5 part of processing aid;
  • polypropylene is catalytically synthesized by metallocene, and the molecular weight distribution index Mw/Mn of the polypropylene is 2;
  • the elastomer is an ethylene-octene copolymer, the density of the elastomer is 0.900 g/cm 3 , MFR (190 ° C, 2.16kg) is 1.0g/10min;
  • the filler is talc, flake, and the average particle diameter D50 of the filler is 10 ⁇ m;
  • the processing aid is composed of an antioxidant and a light stabilizer, and the antioxidant is composed of an antioxidant 1010 and an anti-oxidant
  • the oxygen agent 168 is composed of a weight ratio of the antioxidant 1010 to the antioxidant 168 of 1:1; and the light stabilizer is a hindered amine UV-3853.
  • the preparation method of the polypropylene composition of this example was the same as that of Example 1.
  • the polypropylene composition of the present embodiment is composed of the following parts by weight: 79 parts of polypropylene, 10 parts of elastomer, 10 parts of filler, and 1 part of processing aid;
  • polypropylene is catalytically synthesized by metallocene, and the molecular weight distribution index Mw/Mn of polypropylene is 2.5;
  • the elastomer is an ethylene-butene copolymer, the density of the elastomer is 0.865 g/cm 3 , MFR (190 ° C, 2.16kg) is 0.5g/10min;
  • the filler is talc, flake, and the average particle diameter D50 of the filler is 10 ⁇ m;
  • the processing aid is composed of an antioxidant and a light stabilizer, and the antioxidant is composed of an antioxidant 1010 and an anti-oxidant
  • the oxygen agent 168 is composed of a weight ratio of the antioxidant 1010 to the antioxidant 168 of 1:1; and the light stabilizer is a hindered amine UV-3853.
  • the preparation method of the polypropylene composition of this example was the same as that of Example 1.
  • the polypropylene composition of the present embodiment is composed of the following components by weight: 59.9 parts of polypropylene, 25 parts of elastomer, 15 parts of filler, and 0.1 part of processing aid;
  • polypropylene is catalytically synthesized by metallocene, and the molecular weight distribution index Mw/Mn of the polypropylene is 2;
  • the elastomer is an ethylene-octene copolymer, the density of the elastomer is 0.855 g/cm 3 , MFR (190 ° C, 2.16kg) is 1.0g/10min;
  • the filler is talc, flake, and the average particle diameter D50 of the filler is 10 ⁇ m;
  • the processing aid is composed of an antioxidant and a light stabilizer, and the antioxidant is composed of an antioxidant 1010 and an anti-oxidant
  • the oxygen agent 168 is composed of a weight ratio of the antioxidant 1010 to the antioxidant 168 of 1:1; and the light stabilizer is a hindered amine UV-3853.
  • the preparation method of the polypropylene composition of this example was the same as that of Example 1.
  • the polypropylene composition of the present embodiment is composed of the following parts by weight: 90 parts of polypropylene, 5 parts of an elastomer, 5 parts of a filler, and 0.1 part of a processing aid;
  • polypropylene is catalytically synthesized by Ziegler-Natta, and the molecular weight distribution index Mw/Mn of the polypropylene is 5;
  • the elastomer is an ethylene-propylene copolymer, the density of the elastomer is 0.850 g/cm 3 , MFR (190 ° C, 2.16kg) is 1.0g/10min;
  • the filler is calcium carbonate, spherical, and the filler has an average particle diameter D50 of 2 ⁇ m;
  • the processing aid is composed of an antioxidant and a light stabilizer, and the antioxidant is composed of an antioxidant 1010 and an antioxidant.
  • the agent 168 is composed of a weight ratio of the antioxidant 1010 to the antioxidant 168 of 1:1.5; and the light stabilizer is a hindered amine UV-3853.
  • the preparation method of the polypropylene composition of this example was the same as that of Example 1.
  • the polypropylene composition of the present embodiment is composed of the following components by weight: 44.5 parts of polypropylene, 15 parts of elastomer, 40 parts of filler, and 0.5 part of processing aid;
  • the polypropylene is catalytically synthesized by metallocene, and the molecular weight distribution index Mw/Mn of the polypropylene is 1;
  • the elastomer is an ethylene-butene copolymer, and the density of the elastomer is 0.862 g/cm 3 , and the elastomer
  • the melt mass flow rate is 1.2 g/10 min;
  • the filler is silicon micropowder, spherical, and the average particle diameter D50 of the filler is 20 ⁇ m;
  • the processing aid is composed of an antioxidant and a light stabilizer, and the antioxidant is composed of an antioxidant 1010 and
  • the antioxidant 168 is composed of a weight ratio of the antioxidant 1010 to the antioxidant 168 of 1:2; and the light stabilizer is a hindered amine UV-3853.
  • the preparation method of the polypropylene composition of this example was the same as that of Example 1.
  • the polypropylene composition of the present comparative composition is composed of the following parts by weight: 29 parts of polypropylene, 30 parts of elastomer, 40 parts of filler, and 1 part of processing aid;
  • polypropylene is synthesized by Ziegler-Natta, the molecular weight distribution index of polypropylene is Mw/Mn is 6; the elastomer is ethylene-butene copolymer, the density of the elastomer is 0.865g/cm 3 , MFR (190 ° C) , 2.16kg) is 0.5g/10min; the filler is talc, flake, the average particle diameter D50 of the filler is 10 ⁇ m; the processing aid is composed of an antioxidant and a light stabilizer, and the antioxidant is composed of the antioxidant 1010 and The antioxidant 168 is composed of a weight ratio of the antioxidant 1010 to the antioxidant 168 of 1:1; and the light stabilizer is a hindered amine UV-3853.
  • the preparation method of the polypropylene composition of the present comparative example was the same as in Example 1.
  • the polypropylene composition of the present comparative composition was composed of the following parts by weight: 49.5 parts of polypropylene, 30 parts of elastomer, 20 parts of filler, and 0.5 part of processing aid;
  • polypropylene is synthesized by Ziegler-Natta, the molecular weight distribution index of polypropylene is Mw/Mn is 10; the elastomer is ethylene-octene copolymer, the density of the elastomer is 0.900g/cm 3 , MFR (190 ° C) , 2.16kg) is 1.0g/10min; the filler is talc, flake, the average particle diameter D50 of the filler is 10 ⁇ m; the processing aid is composed of an antioxidant and a light stabilizer, and the antioxidant is composed of an antioxidant 1010 and The antioxidant 168 is composed of a weight ratio of the antioxidant 1010 to the antioxidant 168 of 1:1; and the light stabilizer is a hindered amine UV-3853.
  • the preparation method of the polypropylene composition of the present comparative example was the same as in Example 1.
  • the polypropylene composition of the present comparative composition is composed of the following parts by weight: 79 parts of polypropylene, 10 parts of elastomer, 10 parts of filler, and 1 part of processing aid;
  • polypropylene is synthesized by Ziegler-Natta, the molecular weight distribution index of polypropylene is Mw/Mn is 6; the elastomer is ethylene-butene copolymer, the density of the elastomer is 0.865g/cm 3 , MFR (190 ° C) , 2.16kg) is 0.5g/10min; the filler is talc, flake, the average particle diameter D50 of the filler is 10 ⁇ m; the processing aid is composed of an antioxidant and a light stabilizer, and the antioxidant is composed of the antioxidant 1010 and The antioxidant 168 is composed of a weight ratio of the antioxidant 1010 to the antioxidant 168 of 1:1; and the light stabilizer is a hindered amine UV-3853.
  • the preparation method of the polypropylene composition of the present comparative example was the same as in Example 1.
  • the polypropylene composition of the present comparative composition is composed of the following parts by weight: 59.9 parts of polypropylene, 25 parts of elastomer, 15 parts of filler, and 0.1 part of processing aid;
  • polypropylene is synthesized by Ziegler-Natta, the molecular weight distribution index of polypropylene is Mw/Mn is 6; the elastomer is ethylene-octene copolymer, the density of the elastomer is 0.855g/cm 3 , MFR (190 ° C) , 2.16kg) is 1.0g/10min; the filler is talc, flake, the average particle diameter D50 of the filler is 10 ⁇ m; the processing aid is composed of an antioxidant and a light stabilizer, and the antioxidant is composed of an antioxidant 1010 and The antioxidant 168 is composed of a weight ratio of the antioxidant 1010 to the antioxidant 168 of 1:1; and the light stabilizer is a hindered amine UV-3853.
  • the preparation method of the polypropylene composition of the present comparative example was the same as in Example 1.
  • the atomization degree (gloss method) of the polypropylene compositions of Examples 1 to 6 and Comparative Examples 1 to 4 was measured, and the measurement standard was ISO 6452-2007, and the test conditions were: heating temperature (100 ⁇ 0.5). °C, heating time (3 ⁇ 3) min, drying time (1 ⁇ 0.1) h, the results of the measurement are shown in Table 1.
  • the polypropylene composition prepared by the invention has a haze degree (gloss method) of more than 85% by the definition of the molecular weight distribution of the raw material polypropylene, and has an ultra-low atomization degree exceeding the material standard material. The requirement of atomization.
  • This example examines the effect of the molecular weight distribution index of polypropylene in the polypropylene composition on its atomization.
  • the present embodiment prepared different test group polypropylene compositions and control polypropylene compositions according to the method of the present invention, and measured the polypropylene composition of each test group and the control group according to the method described in Example 7. The degree of atomization of the polypropylene composition.
  • test group polypropylene composition and the control polypropylene composition were each composed of the following parts by weight: 29 to 90 parts of polypropylene, 5 to 30 parts of elastomer, 5 to 40 parts of filler, and 0.1 to 1 processing aid.
  • the elastomer has a density of 0.850-0.900 g/cm 3 , the melt flow rate of the elastomer is 0.5-1.2 g/10 min, and the melt mass flow rate is 2.16 kg weight according to ISO 1133 and is 190 ° C.
  • the elastomer is an ethylene-propylene copolymer, an ethylene-hexene copolymer, an ethylene-butene copolymer, an ethylene-octene copolymer, a styrene-butadiene-styrene copolymer, a hydrogenated styrene At least one of butadiene-styrene copolymer;
  • the filler is spherical, flake or needle, and the filler is talc, calcium carbonate, wollastonite, barium sulfate, mica, silicon micropowder, silica At least one of montmorillonite, the filler has an average particle diameter D50 of 2 to 20 ⁇ m;
  • the processing aid is composed of an antioxidant and a light stabilizer, and the antioxidant is composed of a hindered phenolic antioxidant and a phosphite.
  • Antioxidant composition the weight ratio of the hindered phenolic antioxidant to the phosphite antioxidant is 1: (1) 2), the light stabilizer is a hindered amine light stabilizer.
  • the test group polypropylene composition and the control polypropylene composition were prepared in the same manner as in Example 1.
  • Control group 1 5.5 78.6 Control group 2 6 76.3 Control group 3 8 70.1 Control group 4 10 66.9
  • the molecular weight distribution index Mw/Mn of the polypropylene in the polypropylene composition affects the degree of atomization. Under the same conditions in the polypropylene composition, the molecular weight distribution index Mw/Mn of the polypropylene is lower. The lower the degree of atomization of the polypropylene composition, that is, the higher the gloss retention of the surface of the slide at the time of atomization; and when the molecular weight distribution index Mw/Mn of the polypropylene is more than 5, the gloss retention rate sharply decreases.

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)

Abstract

La présente invention concerne une composition de polypropylène, son procédé de préparation et une application associée. La composition de polypropylène comprend du polypropylène, et l'indice de répartition des poids moléculaires Mw/Mn du polypropylène est inférieur ou égal à 5. La limitation de la répartition des poids moléculaires du polypropylène en tant que matière première permet à la composition de polypropylène obtenue de produire un produit qui présente un degré d'atomisation ultra-faible. La composition de polypropylène selon la présente invention peut être largement appliquée à la production de pièces d'intérieur de véhicule, telles que des tableaux de bord, des tableaux de bord auxiliaires, des colonnes verticales, des boîtes à gants, des panneaux de portière, des seuils et des supports de lampe, et est particulièrement appropriée pour des pièces d'intérieur d'automobile.
PCT/CN2018/124515 2017-12-28 2018-12-27 Composition de polypropylène, son procédé de préparation et application associée WO2019129165A1 (fr)

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CN201711472227.6A CN107987373A (zh) 2017-12-28 2017-12-28 一种聚丙烯组合物及其制备方法与应用
CN201711472227.6 2017-12-28

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CN107987373A (zh) * 2017-12-28 2018-05-04 金发科技股份有限公司 一种聚丙烯组合物及其制备方法与应用
CN110903555B (zh) * 2019-12-20 2022-06-07 金发科技股份有限公司 一种聚丙烯组合物
US20230044121A1 (en) * 2019-12-26 2023-02-09 Sabic Global Technologies B.V. Soft and non-sticky or greasy soft touch feel polymer composition
CN112812421B (zh) * 2021-02-02 2022-10-21 浙江中聚材料有限公司 一种改性聚烯烃复合物及其制备工艺与应用
CN114044966B (zh) * 2021-10-21 2023-08-29 金发科技股份有限公司 一种抗雾化聚丙烯组合物及其制备方法和应用

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CN101166785A (zh) * 2005-04-28 2008-04-23 博里利斯技术有限公司 α-烯烃均聚物或共聚物组合物
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CN107987373A (zh) * 2017-12-28 2018-05-04 金发科技股份有限公司 一种聚丙烯组合物及其制备方法与应用

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Publication number Priority date Publication date Assignee Title
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CN101166785A (zh) * 2005-04-28 2008-04-23 博里利斯技术有限公司 α-烯烃均聚物或共聚物组合物
CN101990559A (zh) * 2008-04-10 2011-03-23 波利亚里斯技术有限公司 低释放的聚合物组合物
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