CN114031856A - Material for automotive interior and preparation method thereof - Google Patents
Material for automotive interior and preparation method thereof Download PDFInfo
- Publication number
- CN114031856A CN114031856A CN202111620108.7A CN202111620108A CN114031856A CN 114031856 A CN114031856 A CN 114031856A CN 202111620108 A CN202111620108 A CN 202111620108A CN 114031856 A CN114031856 A CN 114031856A
- Authority
- CN
- China
- Prior art keywords
- parts
- coupling agent
- mineral powder
- impact
- polypropylene
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
Abstract
The invention relates to a material for automobile interior and a preparation method thereof, and the key points of the technical scheme are that the material comprises 40 to 60 parts of high-crystalline polypropylene, 10 to 30 parts of impact-resistant polypropylene, 18 to 22 parts of inorganic mineral powder, 10 to 15 parts of polyolefin elastomer, 0.5 to 1 part of coupling agent, 2 to 4 parts of anti-scratch agent and 0.1 to 0.5 part of antioxidant by mass; the crystallinity of the high-crystalline polypropylene is 60-70%; the impact strength of the impact-resistant polypropylene is 20-50kJ/m2(ii) a The automobile interior decorative thin-wall processing method has the characteristics of low odor and low VOC, and can well meet the thin-wall processing requirements of automobile interiors.
Description
Technical Field
The invention relates to the technical field of automobile materials, in particular to an automobile interior material and a preparation method thereof.
Background
In recent years, the automobile industry is rapidly developed, and the application of plastics in the automobile industry is increasingly wide. At present, the usage amount of plastics of a plurality of cars in the world exceeds 120 kg per car, and the usage amount of individual cars is still higher. It is expected that the application of plastics in automobiles will be more extensive as the progress of weight reduction of automobiles is accelerated. The polypropylene has strong competitiveness when used in the automobile industry, but cannot be directly used as automobile accessories because of low modulus and heat resistance and poor impact strength, and substances such as inorganic fillers, antioxidants, scratch resistance agents and the like are often added for modification in order to meet the requirements of automobile standards. However, volatile substances are generated in the processing process of the materials, and the generation of the volatile substances is the main reason of large odor and excessive VOC. Therefore, how to achieve the effects of scratch resistance, aging resistance, good odor and low volatility is one of the important subjects of current research.
Disclosure of Invention
One of the objects of the present invention is to provide a material for automobile interior, which has low odor and low VOC characteristics and can satisfactorily meet the demand for thin-wall processing of automobile interior.
The above purpose of the invention is realized by the following technical scheme: the material for the automotive interior comprises, by mass, 40-60 parts of high-crystalline polypropylene, 10-30 parts of impact-resistant polypropylene, 18-22 parts of inorganic mineral powder, 10-15 parts of polyolefin elastomer, 0.5-1 part of coupling agent, 2-4 parts of anti-scratch agent and 0.1-0.5 part of antioxidant; the crystallinity of the high-crystalline polypropylene is 60-70%; the impact strength of the impact-resistant polypropylene is 20-50kJ/m2。
Through the technical scheme, the high-crystalline polypropylene and the impact-resistant polypropylene are used for replacing conventional polypropylene resin particles in the scheme, so that the prepared material particles have better flowability and impact resistance, and the use of materials such as inorganic filler, antioxidant, scratch-resistant agent and the like is effectively reduced, so that the VOC volatilization amount of the molding material can be reduced.
Preferably, the inorganic mineral powder is any one or more of talcum powder, silica fume and mica.
Preferably, the inorganic mineral powder is any one or more of talcum powder, silica fume and mica.
Preferably, the particle size of the inorganic mineral powder is less than or equal to 3 microns.
Preferably, the coupling agent is one or more of an aluminate coupling agent, a titanate coupling agent and a silane coupling agent.
The invention also aims to provide a preparation method of the automotive interior material, which is applied to the preparation of the automotive interior material.
The above purpose of the invention is realized by the following technical scheme:
a preparation method of a material for automobile interior decoration comprises the following steps:
step S1, weighing the high-crystalline polypropylene, the impact-resistant polypropylene, the inorganic mineral powder, the polyolefin elastomer, the coupling agent, the anti-scratch agent and the antioxidant according to the corresponding mass parts;
step S2, baking the inorganic mineral powder at 100-130 ℃ for 2-6 hours, then adding a coupling agent, and mixing in a high-mixing pot at 60 ℃ for 20-30 minutes to obtain a prefabricated mineral powder raw material; adding high-crystalline polypropylene and impact-resistant polypropylene into a mixing tank for premixing to obtain a premixed master batch;
step S3, putting the premixed master batch and the prefabricated mineral powder raw materials into a screw extruder for extrusion operation; adding deionized water in the extrusion process, and performing vacuum devolatilization;
and step S4, putting the extruded raw materials into a granulator for granulation to form raw material particles, and then drying and cooling the raw material particles.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to specific embodiments of the present invention, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
Example 1:
a preparation method of a material for automobile interior decoration comprises the following steps:
step S1, weighing the following raw materials in parts by mass: 40 parts of high-crystalline polypropylene, 10 parts of impact-resistant polypropylene, 18 parts of inorganic mineral powder, 10 parts of polyolefin elastomer, 0.5 part of coupling agent, 2 parts of anti-scratch agent and 0.1 part of antioxidant; wherein, the high-crystalline polypropylene adopts HCPP particles with the crystallinity of 60-70 percent; the impact strength of the impact polypropylene is 20-50kJ/m2(ii) a The inorganic mineral powder adopts talcum powder, and the coupling agent adopts an aluminate coupling agent; the scratch resistant agent adopts a scratch resistant agent with a Silico brand of LYSI-306; the antioxidant adopts a compound antioxidant with the St.Laiket brand of S2225;
step S2, baking the inorganic mineral powder at 100-130 ℃ for 2-6 hours, then adding a coupling agent, and mixing in a high-mixing pot at 60 ℃ for 20-30 minutes to obtain a prefabricated mineral powder raw material; adding high-crystalline polypropylene and impact-resistant polypropylene into a mixing tank for premixing to obtain a premixed master batch;
step S3, putting the premixed master batch and the prefabricated mineral powder raw materials into a screw extruder for extrusion operation; adding deionized water in the extrusion process, and performing vacuum devolatilization; wherein the temperature zones of the screw extruder are set as follows: a first stage: 180 ℃; and (2) second stage: 190 to 210 ℃; and (3) three stages: 190 to 210 ℃; and a fourth stage: 190 to 210 ℃; five stages: 200 to 220 ℃; six sections: 200 to 220 ℃; seven sections: 200 to 220 ℃; eight sections: 200 to 220 ℃, nine stages: 190 to 210 ℃; a machine head: at 200 ℃.
Step S4, cooling the extruded raw material to room temperature through a water tank, and then putting the extruded raw material into a granulator for granulation to form raw material particles; drying the raw material particles for 4 hours at the temperature of 125 ℃, and discharging the materials after cooling.
Examples 2 to 9 were prepared in the same manner as in example 1 except that the contents of the respective components were different from those in example 1, as shown in table 1.
TABLE 1 examples 1 to 9 raw material compositions and amounts of automotive interior materials
| Raw materials | 1# | 2# | 3# | 4# | 5# | 6# | 7# | 8# | 9# |
| Highly crystalline polypropylene | 40 | 50 | 60 | 40 | 40 | 50 | 50 | 60 | 60 |
| Impact polypropylene | 10 | 10 | 10 | 20 | 30 | 10 | 10 | 10 | 10 |
| Inorganic mineral powder | 18 | 18 | 18 | 18 | 18 | 20 | 22 | 18 | 18 |
| Polyolefin elastomer | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 12.5 | 15 |
| Coupling agent | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.75 | 0.75 | 1 | 1 |
| Scratch-resistant agent | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 4 | 4 |
| Antioxidant agent | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.3 | 0.3 | 0.5 | 0.5 |
Wherein 1# represents example 1, 2# represents example 2, and 9# represents example 9; data units are parts by mass.
Comparative example
Comparative example 1
Comparative example 1 is prepared in the same manner as in example 1, except that the formulation is different from that of example 1, as follows:
a material for automobile interior decoration comprises 50 parts of polypropylene, 18 parts of inorganic mineral powder, 10 parts of polyolefin elastomer, 0.5 part of coupling agent, 2 parts of anti-scratch agent and 0.1 part of antioxidant; wherein, the inorganic mineral powder adopts talcum powder, and the coupling agent adopts aluminate coupling agent; the scratch resistant agent adopts a scratch resistant agent with a Silico brand of LYSI-306; the antioxidant adopts a compound antioxidant with the St.Laiket brand of S2225.
Comparative example 2
Comparative example 2 is the same formulation as example 1 except that deionized water was added during the preparation and vacuum devolatilization was performed without extrusion.
Test method
Performance test experiments were performed on the 9 automobile interior materials prepared in examples 1 to 9 and the 3 modified polypropylenes prepared in comparative example 1, respectively.
The relevant test methods and standards are as follows:
1, ISO 1133: melt flow Rate, determination of melt Mass Flow Rate (MFR) and melt volume flow Rate (MVR) of a thermoplastic.
ISO 572: tensile Strength test, determination of tensile Properties of plastics.
ISO 178: flexural Strength test, determination of the flexural Properties of plastics.
ISO 180: impact Property measurement, measurement of Izod impact Strength.
ISO 1183: density test, Density determination method for Plastic and non-foamed plastics.
VWPV 3920: scratch resistance test, 1.0mm scraping head, 10N force, test scratch, require DeltaL not more than 1.5.
HJ _ T400-2007: VOC test, in-vehicle volatile organic compounds and aldehyde ketone substance sampling and measuring method
VDA 270: odor rating test, odor Properties of automotive interior materials.
TABLE 2 relevant test data for mechanical Properties of examples 1-9 and comparative examples 1-2
TABLE 3 EXAMPLES 1-9 AND COMPARATIVE EXAMPLES 1-2V 0C test-related data
In Table 3, ND means not found.
The data in tables 1 to 3 are combined to obtain that the VOC content of the whole material is obviously reduced along with the increase of the proportion of the high-crystalline polypropylene and the impact polypropylene, and the high-crystalline polypropylene has an obvious effect of improving the fluidity of the whole material; deionized water is removed in the preparation process and vacuum devolatilization is carried out, and gaseous water molecules and small molecular substances carried by the water molecules can be sucked out together, so that the material has lower VOC volatilization amount.
Although some specific embodiments of the present invention have been described in detail by way of illustration, it should be understood by those skilled in the art that the above illustration is only for the purpose of illustration and is not intended to limit the scope of the invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (5)
1. A material for automotive interior, characterized in that: comprises 40 to 60 parts of high-crystalline polypropylene, 10 to 30 parts of impact polypropylene, 18 to 22 parts of inorganic mineral powder, 10 to 15 parts of polyolefin elastomer, 0.5 to 1 part of coupling agent, 2 to 4 parts of anti-scratch agent, and 0.1 to 0.5 part of antioxidant by mass(ii) a The crystallinity of the high-crystalline polypropylene is 60-70%; the impact strength of the impact-resistant polypropylene is 20-50kJ/m2。
2. The material for automotive interior according to claim 1, characterized in that: the inorganic mineral powder is one or more of talcum powder, silica fume and mica.
3. The material for automotive interior according to claim 1, characterized in that: the particle size of the inorganic mineral powder is less than or equal to 3 microns.
4. The material for automotive interior according to claim 1, characterized in that: the coupling agent is one or more of aluminate coupling agent, titanate coupling agent and silane coupling agent.
5. A method for producing an automotive interior material, applied to the production of the automotive interior material according to any one of claims 1 to 4, characterized by comprising the steps of:
step S1, weighing the high-crystalline polypropylene, the impact-resistant polypropylene, the inorganic mineral powder, the polyolefin elastomer, the coupling agent, the anti-scratch agent and the antioxidant according to the corresponding mass parts;
step S2, baking the inorganic mineral powder at 100-130 ℃ for 2-6 hours, then adding a coupling agent, and mixing in a high-mixing pot at 60 ℃ for 20-30 minutes to obtain a prefabricated mineral powder raw material; adding high-crystalline polypropylene and impact-resistant polypropylene into a mixing tank for premixing to obtain a premixed master batch;
step S3, putting the premixed master batch and the prefabricated mineral powder raw materials into a screw extruder for extrusion operation; adding deionized water in the extrusion process, and performing vacuum devolatilization;
and step S4, putting the extruded raw materials into a granulator for granulation to form raw material particles, and then drying and cooling the raw material particles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111620108.7A CN114031856A (en) | 2021-12-27 | 2021-12-27 | Material for automotive interior and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111620108.7A CN114031856A (en) | 2021-12-27 | 2021-12-27 | Material for automotive interior and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114031856A true CN114031856A (en) | 2022-02-11 |
Family
ID=80147235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111620108.7A Pending CN114031856A (en) | 2021-12-27 | 2021-12-27 | Material for automotive interior and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114031856A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1467247A (en) * | 2002-06-05 | 2004-01-14 | �ִ��Զ�����ʽ���� | Polypropylene resin composition for automobile door trims having impact and scratch resistance |
| CN102336954A (en) * | 2010-07-19 | 2012-02-01 | 哈尔滨鑫达高分子材料工程中心有限责任公司 | Matte scratch-resistant modified polypropylene composite material for interior trim of automobile |
| CN103214740A (en) * | 2013-04-28 | 2013-07-24 | 长城汽车股份有限公司 | Polypropylene composite material for automobile internal ornament, preparation method thereof and internal ornament |
| CN105647021A (en) * | 2014-11-10 | 2016-06-08 | 合肥杰事杰新材料股份有限公司 | Low-odor, low-volatile and scratch-resistant polypropylene composite material for automotive interiors and preparation method for composite material |
| CN105670106A (en) * | 2014-11-21 | 2016-06-15 | 合肥杰事杰新材料股份有限公司 | Low-odor low-volatile automobile interior trimming material and preparation method thereof |
| CN106810759A (en) * | 2015-11-30 | 2017-06-09 | 合肥杰事杰新材料股份有限公司 | A kind of scratch-resistant filled polypropylene material and preparation method thereof |
| CN107501734A (en) * | 2017-09-13 | 2017-12-22 | 北京航天试验技术研究所 | It is a kind of it is low distribute, low smell long glass fiber-reinforced polypropylene materials |
-
2021
- 2021-12-27 CN CN202111620108.7A patent/CN114031856A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1467247A (en) * | 2002-06-05 | 2004-01-14 | �ִ��Զ�����ʽ���� | Polypropylene resin composition for automobile door trims having impact and scratch resistance |
| CN102336954A (en) * | 2010-07-19 | 2012-02-01 | 哈尔滨鑫达高分子材料工程中心有限责任公司 | Matte scratch-resistant modified polypropylene composite material for interior trim of automobile |
| CN103214740A (en) * | 2013-04-28 | 2013-07-24 | 长城汽车股份有限公司 | Polypropylene composite material for automobile internal ornament, preparation method thereof and internal ornament |
| CN105647021A (en) * | 2014-11-10 | 2016-06-08 | 合肥杰事杰新材料股份有限公司 | Low-odor, low-volatile and scratch-resistant polypropylene composite material for automotive interiors and preparation method for composite material |
| CN105670106A (en) * | 2014-11-21 | 2016-06-15 | 合肥杰事杰新材料股份有限公司 | Low-odor low-volatile automobile interior trimming material and preparation method thereof |
| CN106810759A (en) * | 2015-11-30 | 2017-06-09 | 合肥杰事杰新材料股份有限公司 | A kind of scratch-resistant filled polypropylene material and preparation method thereof |
| CN107501734A (en) * | 2017-09-13 | 2017-12-22 | 北京航天试验技术研究所 | It is a kind of it is low distribute, low smell long glass fiber-reinforced polypropylene materials |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103554865B (en) | A kind of high flowing PC/ABS alloy material and its preparation method and application | |
| CN112063048B (en) | Low-dielectric high-melt-strength flame-retardant polypropylene material and preparation method thereof | |
| CN108485066B (en) | Environment-friendly low-odor polypropylene composite material for vehicles and preparation method thereof | |
| CN114106532B (en) | Flame-retardant high-toughness PLA alloy material, and preparation method and application thereof | |
| CN111303536A (en) | Low-shrinkage polypropylene material and preparation method thereof | |
| CN112457585A (en) | Polypropylene composition and preparation method thereof | |
| CN112375324B (en) | HIPS (high impact polystyrene) composite material as well as preparation method and application thereof | |
| KR101383621B1 (en) | Recycled polypropylene polymer composite materal composition with improved tensile strength and flexural rigidity and manufacturing method thereof | |
| CN111944237A (en) | Anti-virus and low-haze automotive interior polypropylene material and preparation method thereof | |
| CN111763383B (en) | Good-touch glass fiber reinforced polypropylene composite and preparation method thereof | |
| CN108059772A (en) | A kind of low smell, it is low distribute, high heat-resisting polypropylene composite material and preparation method thereof | |
| CN113150450A (en) | Recyclable nano-cellulose reinforced polypropylene material and preparation method and application thereof | |
| CN111484679A (en) | High-rigidity, high-toughness and high-fluidity polypropylene composite material and preparation method thereof | |
| CN110845799A (en) | Low-odor scratch-resistant polypropylene composite material and preparation method thereof | |
| CN110498968A (en) | A kind of polypropylene thermoplastic elastomer composite material and preparation method | |
| CN107815024B (en) | Scratch-resistant PP (polypropylene) automobile special material and preparation method thereof | |
| CN114031856A (en) | Material for automotive interior and preparation method thereof | |
| CN113150437A (en) | High-brightness black scratch-resistant polypropylene composite material for vehicles and preparation method thereof | |
| CN115386166B (en) | Polypropylene composite material, and preparation method and application thereof | |
| KR20190064875A (en) | Glass fiber reinforced polypropylene resin composition, method for preparing the resin composition and molded article comprising the same | |
| CN111484680A (en) | High-gloss and high-temperature-resistant polypropylene composite material and preparation method thereof | |
| CN115558269B (en) | Polycarbonate alloy and preparation method and application thereof | |
| CN113321866A (en) | Laser direct forming polypropylene material and preparation method thereof | |
| CN111978643A (en) | Low-VOC (volatile organic compound) scratch-resistant polypropylene composite material and preparation method thereof | |
| DE102017223809B4 (en) | Polypropylene resin composition and product molded therefrom |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |