CN110862615A - Low-VOC composite plastic for automotive interior and preparation method thereof - Google Patents
Low-VOC composite plastic for automotive interior and preparation method thereof Download PDFInfo
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- CN110862615A CN110862615A CN201911306829.3A CN201911306829A CN110862615A CN 110862615 A CN110862615 A CN 110862615A CN 201911306829 A CN201911306829 A CN 201911306829A CN 110862615 A CN110862615 A CN 110862615A
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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
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- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2286—Oxides; Hydroxides of metals of silver
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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
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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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
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- Chemical Kinetics & Catalysis (AREA)
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- Polymers & Plastics (AREA)
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Abstract
The invention discloses a low-VOC composite plastic for automotive interior, which comprises the following components in parts by mass: 50-70 parts; a toughening agent: 10-20 parts; antioxidant: 0.5-1 part; diatomite: 5-15 parts; 2-5 parts of dimethyl silicone oil; 0.5-1 part of light stabilizer; 5-10 parts of a flame retardant; 1-2 parts of silver oxide; the invention also discloses a preparation method of the low-VOC composite plastic for automotive interior, which comprises the steps of mixing the raw materials and extruding and granulating.
Description
Technical Field
The invention relates to the field of automotive interior parts, in particular to a composite polypropylene plastic for automotive interior and a preparation method thereof.
Background
With the continuous development of industrialization and the continuous development of science and technology, the requirement of people for traveling is continuously increased, and automobiles are the first choice vehicles for many people to commute and travel. The requirements of people on the automobile are not only fast and stable in opening, but also the indexes of comfort and safety of the automobile are an important reference point selected by people.
As an important component of an automobile, the automobile interior is also a point of attention of most automobile owners when selecting the automobile, the automobile interior is usually made of plastic materials, and due to the characteristics of the plastic, volatile organic compounds (VOC is an English abbreviation of Volatile Organic Compounds (VOC) which affects the body health of the automobile owners and passengers to a certain extent.
Disclosure of Invention
The invention aims to provide the composite plastic for the automotive interior with low VOC (volatile organic compound) emission and the preparation method thereof, and the composite plastic has the advantages of low emission, simple preparation method and the like.
In order to solve the problems, the invention provides a low-VOC composite plastic for automotive interior, which comprises the following components in parts by mass:
polypropylene resin: 50-70 parts; a toughening agent: 10-20 parts; antioxidant: 0.5-1 part; diatomite: 5-15 parts; 2-5 parts of dimethyl silicone oil; 0.5-1 part of light stabilizer; 5-10 parts of a flame retardant; 1-2 parts of silver oxide.
Preferably, the feed comprises the following components in parts by mass:
polypropylene resin: 55-65 parts; a toughening agent: 12-18 parts; antioxidant: 0.75-1 part; diatomite: 8-12 parts; 3-5 parts of dimethyl silicone oil; 0.75-1 part of light stabilizer; 7-10 parts of a flame retardant; 1.5-2 parts of silver oxide.
Preferably, the feed comprises the following components in parts by mass:
polypropylene resin: 60 parts; a toughening agent: 15 parts of (1); antioxidant: 1 part; diatomite: 10 parts of (A); 5 parts of dimethyl silicone oil; 1 part of light stabilizer; 10 parts of a flame retardant; and 2 parts of silver oxide.
Preferably, the flame retardant is an intumescent flame retardant.
5. The method for preparing the low-VOC composite plastic for automotive interior trim of claims 1-4, is characterized by comprising the following steps:
(1) putting the polypropylene resin and the diatomite into a high-speed mixer for blending for 2-3min, then sequentially adding the toughening agent, the antioxidant, the dimethyl silicone oil, the light stabilizer, the silver oxide and the flame retardant, and continuing to blend for 2-3 min;
(2) and (2) adding the mixture treated in the step (1) into a double-screw extruder for melt mixing, and performing extrusion granulation.
Preferably, in the step (1), the reaction temperature is 10-15 ℃, and after the polypropylene resin and the diatomite are blended, the mixture is kept still for 1 hour.
Preferably, in the step (2), the degree of vacuum for extrusion granulation is from-0.03 to-0.10 MPa.
The technical scheme has the following beneficial technical effects:
according to the invention, different raw materials are reasonably selected to modify the polypropylene plastic for the automotive interior, so that the VOC (volatile organic compound) emission of the polypropylene plastic is effectively reduced, and compared with the common composite plastic for the automotive interior on the market, the composite plastic is more environment-friendly and lower in VOC, and basically has no harm to the body health of an automobile owner, and the preparation method is simple and has higher popularization value.
According to the invention, the diatomite and the polypropylene resin are added for premixing, and then the mixture is kept stand for one hour, so that due to the porous characteristic of the surface of the diatomite, a part of VOC gas can be absorbed after the diatomite and the polypropylene resin are mixed; the addition of the antioxidant and the light stabilizer can convert low-molecular VOC substances in the raw materials into high molecules, so that the low-molecular VOC substances become solid, and the low-molecular VOC substances are prevented from being converted into VOC gas to be released in the using process due to undersize molecules; the addition of the Intumescent Flame Retardant (IFR) can enhance the flame retardance of the product prepared by the invention, improve the thermal stability and prevent the problem of VOC release caused by volatilization of substances in the interior composite plastic under the condition of overheat of the environment in the vehicle; the invention effectively reduces the emission of VOC through the synergistic effect of a plurality of substances, and provides the automotive interior polypropylene plastic.
Detailed Description
The invention is further described with reference to specific examples.
The following examples are not provided to limit the scope of the present invention, nor are the steps described to limit the order of execution. Modifications of the invention which are obvious to those skilled in the art in view of the prior art are also within the scope of the invention as claimed.
Example one
The low-VOC composite plastic for the automotive interior comprises the following components in parts by mass:
polypropylene resin: 60 parts; a toughening agent: 15 parts of (1); antioxidant: 1 part; diatomite: 10 parts of (A); 5 parts of dimethyl silicone oil; 1 part of light stabilizer; 10 parts of an intumescent flame retardant; 2 parts of silver oxide;
the preparation method of the composite plastic comprises the following steps:
(1) placing polypropylene resin and diatomite into a high-speed mixer at the temperature of 10-15 ℃ for blending for 2-3min, standing for one hour, sequentially adding a toughening agent, an antioxidant, simethicone, a light stabilizer, silver oxide and a flame retardant, and continuing to blend for 2-3 min;
(2) and (2) adding the mixture treated in the step (1) into a double-screw extruder for melt mixing, and carrying out extrusion granulation under the condition of-0.03 to-0.10 Mpa.
Example two
The low-VOC composite plastic for the automotive interior comprises the following components in parts by mass:
polypropylene resin: 70 parts of (B); a toughening agent: 20 parts of (1); antioxidant: 1 part; diatomite: 15 parts of (1); 5 parts of dimethyl silicone oil; 1 part of light stabilizer; 10 parts of a flame retardant; and 2 parts of silver oxide.
The preparation method of the composite plastic comprises the following steps:
(1) placing polypropylene resin and diatomite into a high-speed mixer at the temperature of 10-15 ℃ for blending for 2-3min, standing for one hour, sequentially adding a toughening agent, an antioxidant, simethicone, a light stabilizer, silver oxide and a flame retardant, and continuing to blend for 2-3 min;
(2) and (2) adding the mixture treated in the step (1) into a double-screw extruder for melt mixing, and carrying out extrusion granulation under the condition of-0.03 to-0.10 Mpa.
EXAMPLE III
The low-VOC composite plastic for the automotive interior comprises the following components in parts by mass:
polypropylene resin: 50 parts of a mixture; a toughening agent: 20 parts of (1); antioxidant: 0.5 part; diatomite: 15 parts of (1); 2 parts of dimethyl silicone oil; 1 part of light stabilizer; 5 parts of a flame retardant; and 1 part of silver oxide.
The preparation method of the composite plastic comprises the following steps:
(1) placing polypropylene resin and diatomite into a high-speed mixer at the temperature of 10-15 ℃ for blending for 2-3min, standing for one hour, sequentially adding a toughening agent, an antioxidant, simethicone, a light stabilizer, silver oxide and a flame retardant, and continuing to blend for 2-3 min;
(2) and (2) adding the mixture treated in the step (1) into a double-screw extruder for melt mixing, and carrying out extrusion granulation under the condition of-0.03 to-0.10 Mpa.
Comparative example:
the composite plastic for the automotive interior comprises the following components in parts by mass:
polypropylene resin: 60 parts; a toughening agent: 15 parts of (1); antioxidant: 1 part; 5 parts of dimethyl silicone oil; 1 part of light stabilizer; 10 parts of an intumescent flame retardant; 2 parts of silver oxide;
the preparation method of the composite plastic comprises the following steps:
(1) placing the polypropylene resin into a high-speed mixer for processing for 2-3min at the temperature of 10-15 ℃, standing for one hour, sequentially adding a toughening agent, an antioxidant, dimethyl silicone oil, a light stabilizer, silver oxide and a flame retardant, and continuously blending for 2-3 min;
(2) and (2) adding the mixture treated in the step (1) into a double-screw extruder for melt mixing, and carrying out extrusion granulation under the condition of-0.03 to-0.10 Mpa.
VOC-related parameters were determined for the composite plastics of examples 1-3 and the comparative example under conditions such that a headspace method was used for each example and for the comparative example for a period of 10 days.
The results of the measurement are as follows:
| example 1 | Example 2 | Example 3 | Comparative example | |
| Benzene (ug/m)3The same below) | 67 | 76 | 68 | 207 |
| Toluene | 57 | 67 | 56 | 507 |
| Ethylbenzene production | 56 | 76 | 78 | 587 |
| Xylene | 67 | 77 | 76 | 764 |
| Styrene (meth) acrylic acid ester | 29 | 45 | 43 | 102 |
| Formaldehyde (I) | 24 | 28 | 44 | 87 |
| Acetaldehyde | 39 | 39 | 40 | 89 |
| Acrolein | 26 | 27 | 28 | 78 |
The determination result shows that the VOC of the polypropylene plastic for the automotive interior is very low, and the added diatomite and other raw materials also effectively play a synergistic effect, so that the VOC release rate is low, the formula cost is relatively low, the preparation method is relatively convenient and rapid, and the popularization value is very high.
While the foregoing description shows and describes several preferred embodiments of the invention, it is to be understood, as noted above, that the invention is not limited to the forms disclosed herein, but is not intended to be exhaustive of other embodiments, and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as described herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. The low-VOC composite plastic for the automotive interior is characterized by comprising the following components in parts by mass:
polypropylene resin: 50-70 parts; a toughening agent: 10-20 parts; antioxidant: 0.5-1 part; diatomite: 5-15 parts; 2-5 parts of dimethyl silicone oil; 0.5-1 part of light stabilizer; 5-10 parts of a flame retardant; 1-2 parts of silver oxide.
2. The low-VOC composite plastic for automotive interior trim according to claim 1, which comprises the following components in percentage by mass:
polypropylene resin: 55-65 parts; a toughening agent: 12-18 parts; antioxidant: 0.75-1 part; diatomite: 8-12 parts; 3-5 parts of dimethyl silicone oil; 0.75-1 part of light stabilizer; 7-10 parts of a flame retardant; 1.5-2 parts of silver oxide.
3. The low-VOC composite plastic for automotive interior trim according to claim 1, which comprises the following components in percentage by mass:
polypropylene resin: 60 parts; a toughening agent: 15 parts of (1); antioxidant: 1 part; diatomite: 10 parts of (A); 5 parts of dimethyl silicone oil; 1 part of light stabilizer; 10 parts of a flame retardant; and 2 parts of silver oxide.
4. The low-VOC composite plastic for automotive interior trim as claimed in claim 1, wherein said flame retardant is an intumescent flame retardant.
5. The method for preparing the low-VOC composite plastic for automotive interior trim of claims 1-4, is characterized by comprising the following steps:
(1) putting the polypropylene resin and the diatomite into a high-speed mixer for blending for 2-3min, then sequentially adding the toughening agent, the antioxidant, the dimethyl silicone oil, the light stabilizer, the silver oxide and the flame retardant, and continuing to blend for 2-3 min;
(2) and (2) adding the mixture treated in the step (1) into a double-screw extruder for melt mixing, and performing extrusion granulation.
6. The method for preparing the low-VOC composite plastic for the automotive interior according to claim 5, wherein in the step (1), the reaction temperature is 10-15 ℃, and after the polypropylene resin and the diatomite are blended, the mixture is left for 1 hour.
7. The method for preparing a low VOC composite plastic for automotive interior trim according to claim 5, wherein in the step (2), the vacuum degree of the extrusion granulation is-0.03 to-0.10 MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911306829.3A CN110862615A (en) | 2019-12-18 | 2019-12-18 | Low-VOC composite plastic for automotive interior and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911306829.3A CN110862615A (en) | 2019-12-18 | 2019-12-18 | Low-VOC composite plastic for automotive interior and preparation method thereof |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103571054A (en) * | 2013-10-24 | 2014-02-12 | 合肥会通新材料有限公司 | Low VOC polypropylene composite material and preparation and application thereof |
| CN104292645A (en) * | 2014-10-31 | 2015-01-21 | 苏州润佳工程塑料股份有限公司 | Low VOC polypropylene composite material and preparation method thereof |
| CN104448573A (en) * | 2014-11-20 | 2015-03-25 | 银禧工程塑料（东莞）有限公司 | Polypropylene composition with low content of VOC (volatile organic compounds) and preparation method thereof |
-
2019
- 2019-12-18 CN CN201911306829.3A patent/CN110862615A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103571054A (en) * | 2013-10-24 | 2014-02-12 | 合肥会通新材料有限公司 | Low VOC polypropylene composite material and preparation and application thereof |
| CN104292645A (en) * | 2014-10-31 | 2015-01-21 | 苏州润佳工程塑料股份有限公司 | Low VOC polypropylene composite material and preparation method thereof |
| CN104448573A (en) * | 2014-11-20 | 2015-03-25 | 银禧工程塑料（东莞）有限公司 | Polypropylene composition with low content of VOC (volatile organic compounds) and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 王选伦 等: "车用环保低VOC聚丙烯复合材料的研究开发", 《西南汽车信息》 * |
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Application publication date: 20200306 |