CN110857348A - Plastic suitable for automotive interior parts and preparation method thereof - Google Patents
Plastic suitable for automotive interior parts and preparation method thereof Download PDFInfo
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- CN110857348A CN110857348A CN201810975166.3A CN201810975166A CN110857348A CN 110857348 A CN110857348 A CN 110857348A CN 201810975166 A CN201810975166 A CN 201810975166A CN 110857348 A CN110857348 A CN 110857348A
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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
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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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
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/062—HDPE
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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)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention discloses a plastic suitable for automotive interior parts, which has the technical scheme that the plastic comprises the following components in parts by weight: 86-106 parts of PP resin, 34-52 parts of POE plastic, 28-40 parts of HDPE resin, 1.5-4.6 parts of dispersant and 3-9 parts of antibacterial composition; the invention also discloses a preparation method of the plastic suitable for the automotive interior trim part, which comprises the following steps of: s1, mixing and crushing the agastache rugosus, the astragalus membranaceus, the yellow answer and the blackberry lily to 150 meshes by weight to obtain the antibacterial composition; s2, mixing the antibacterial composition and the dispersant for 5-8 min at 220r/min-260r/min, adding the silane coupling agent, continuing to mix at 220r/min-260r/min for 5-8 min, adding the PP resin, the POE plastic and the HDPE resin, continuing to mix at 220r/min-260r/min for 5-8 min to obtain a premix; s3, granulating the premix by a screw extrusion process, and obtaining the plastic with excellent antibacterial property and mechanical property.
Description
Technical Field
The invention relates to the technical field of preparation of automotive interior parts, in particular to plastic suitable for automotive interior parts and a preparation method thereof.
Background
The automobile back door, the trunk guard plate, the seat support, the support of shifting, glove box inner cover plate, glove box fill, vice instrument board body, panel storing box etc. all belong to automotive interior spare, for other parts on the automobile, automotive interior spare is though it is little to the operating performance of automobile, but its visual image that directly demonstrates the automobile plays effects such as shock attenuation, thermal-insulated, inhale the sound, sunshade, and play shock attenuation, thermal-insulated, the sound absorption, the travelling comfort of automobile is vital, reflect the grade of automobile from a great extent, decided consumer's purchase intention.
The automobile interior spare covers the whole inner space of car almost, is the part that can directly contact with the human body moreover, and the automobile inner space is sealed relatively, and the bacterium of breeding on the automobile interior spare shifts to the human body through the contact easily, and then influences human health. Engineering plastics are usually adopted as processing raw materials of automotive upholsteries, and the improvement of the antibacterial activity of the engineering plastics is an important research direction for improving the environmental sanitation performance in automobiles.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide the following steps: provides the plastic suitable for the automotive upholstery, and has excellent antibacterial performance and mechanical performance.
The technical purpose of the invention is realized by the following technical scheme:
the plastic suitable for the automotive interior parts comprises the following components in parts by weight: 86-106 parts of PP resin, 34-52 parts of POE plastic, 28-40 parts of HDPE resin, 1.5-4.6 parts of dispersant and 3-9 parts of antibacterial composition; wherein, the bacteriostatic composition comprises 1 to 2 parts of ageratum, 1 to 3 parts of astragalus, 0.5 to 2 parts of yellow answer and 0.5 to 2 parts of blackberry lily by weight.
Preferably, the antibacterial composition comprises 1.5 parts of wrinkled gianthyssop herb, 2 parts of astragalus, 1 part of radix astragali and 1 part of blackberry lily by weight.
Preferably, the dispersing agent is polyethylene wax.
By adopting the scheme, in the selected antibacterial composition, the effective components in the agastache rugosus and the astragalus membranaceus can destroy the growth environment of the mold, and the effective components in the blackberrylily rhizome and the radix astragali have strong inhibition effect on the fungi. The proper antibacterial component is selected, and the survival and propagation of various harmful bacteria such as mould, fungus and the like in the plastic are effectively inhibited through reasonable proportion, the broad-spectrum sterilization effect is achieved, especially in a relatively closed space in an automobile, the growth and propagation of the fungi in the automobile interior trim part can be effectively inhibited, the sanitary performance of the space in the automobile is improved, and the health of a human body is facilitated.
The addition of the dispersing agent can effectively improve the dispersibility of the antibacterial composition in the plastic, on one hand, the antibacterial uniformity of the plastic can be improved, and on the other hand, the condition that the mechanical property of the plastic is reduced due to the concentrated distribution of the antibacterial composition can be reduced.
Preferably, the paint also comprises 1 to 3 parts of silane coupling agent by weight.
Preferably, the paint comprises the following components in parts by weight: 96 parts of PP resin, 42 parts of POE plastic, 32 parts of HDPE resin, 3 parts of dispersing agent, 5 parts of antibacterial composition and 2 parts of silane coupling agent.
By adopting the above scheme, add silane coupling agent, modify PP resin, POE plastics, HDPE resin, increased the cross-linking reaction between PP resin, POE plastics, HDPE resin and the antibacterial composition to increased the cohesion between antibacterial composition and PP resin, POE plastics, the HDPE resin, improved the holistic stability of plastics, the mechanical properties that maintains plastics is at higher level.
Object two of the present invention: the preparation method of the plastic suitable for the automotive interior trim part comprises the following steps:
s1, mixing and crushing the agastache rugosus, the astragalus membranaceus, the yellow answer and the blackberry lily to 150 meshes by weight to obtain the antibacterial composition;
s2, mixing the antibacterial composition and the dispersant for 5-8 min at 220-260 r/min according to parts by weight, adding PP resin, POE plastic and HDPE resin, and continuously mixing at 220-260 r/min for 5-8 min to obtain a premix;
and S3, granulating the premix by a screw extrusion process.
The third purpose of the invention is that: the preparation method of the plastic suitable for the automotive interior trim part comprises the following steps:
s1, mixing and crushing the agastache rugosus, the astragalus membranaceus, the yellow answer and the blackberry lily to 150 meshes by weight to obtain the antibacterial composition;
s2, mixing the antibacterial composition and the dispersant for 5-8 min at 220r/min-260r/min, adding the silane coupling agent, continuing to mix at 220r/min-260r/min for 5-8 min, adding the PP resin, the POE plastic and the HDPE resin, continuing to mix at 220r/min-260r/min for 5-8 min to obtain a premix;
and S3, granulating the premix by a screw extrusion process.
Preferably, the granulation temperature of the screw extrusion process is 190-205 ℃.
In conclusion, the invention has the following beneficial effects:
1. the proper antibacterial component is selected, and the survival and propagation of various harmful bacteria such as mould, fungus and the like in the plastic are effectively inhibited through reasonable proportion, so that the broad-spectrum antibacterial plastic has a broad-spectrum antibacterial effect, can effectively inhibit the growth and propagation of the fungi in the automotive interior trim part particularly in a relatively closed space in the automobile, improves the sanitary performance of the space in the automobile, and is beneficial to human health;
2. the addition of the dispersing agent can effectively improve the dispersibility of the antibacterial composition in the plastic, on one hand, the antibacterial uniformity of the plastic can be improved, and on the other hand, the condition that the mechanical property of the plastic is reduced due to the concentrated distribution of the antibacterial composition can be reduced;
3. the silane coupling agent is added, so that the overall structural stability of the plastic is improved, and the mechanical property of the plastic is maintained at a higher level.
Detailed Description
The present invention will be described in further detail below.
Example 1
The preparation method of the plastic suitable for the automotive interior trim part comprises the following steps:
s1, mixing and crushing 1 part of wrinkled gianthyssop herb, 1 part of astragalus, 0.5 part of yellow answer and 0.5 part of blackberry lily to 120 meshes according to parts by weight to obtain the antibacterial composition;
s2, mixing 3 parts of the antibacterial composition and 1.5 parts of a dispersing agent for 5min at 220r/min according to parts by weight, adding 86 parts of PP resin, 34 parts of POE plastic and 28 parts of HDPE resin, and continuously mixing for 5min at 220r/min to obtain a premix;
s3, granulating the premix by a screw extrusion process, wherein the granulating temperature of the screw extrusion process is 190 ℃.
Example 2
The preparation method of the plastic suitable for the automotive interior trim part comprises the following steps:
s1, mixing and crushing 1.5 parts of wrinkled gianthyssop herb, 2 parts of astragalus, 1 part of yellow answer and 1 part of blackberry lily to 130 meshes according to parts by weight to obtain the antibacterial composition;
s2, mixing 5 parts of the antibacterial composition and 3 parts of the dispersant for 7min at 240r/min according to the parts by weight, adding 96 parts of PP resin, 42 parts of POE plastic and 32 parts of HDPE resin, and continuously mixing for 7min at 240r/min to obtain a premix;
s3, granulating the premix by a screw extrusion process, wherein the granulating temperature of the screw extrusion process is 200 ℃.
Example 3
The preparation method of the plastic suitable for the automotive interior trim part comprises the following steps:
s1, mixing and crushing 2 parts of wrinkled gianthyssop herb, 3 parts of astragalus, 2 parts of yellow answer and 2 parts of blackberry lily to 150 meshes according to parts by weight to obtain the antibacterial composition;
s2, mixing 9 parts of the antibacterial composition and 4.6 parts of the dispersant for 8min at 260r/min according to the parts by weight, adding 106 parts of PP resin, 52 parts of POE plastic and 40 parts of HDPE resin, and continuously mixing for 8min at 260r/min to obtain a premix;
s3, granulating the premix by a screw extrusion process, wherein the granulating temperature of the screw extrusion process is 205 ℃.
Example 4
This example was carried out as in example 1, with the following differences:
in step S1, 1.5 parts of wrinkled gianthyssop herb, 2 parts of astragalus, 1 part of yellow answer and 1 part of blackberry lily are mixed and crushed into 120 meshes according to parts by weight to obtain the antibacterial composition.
Example 5
This example was carried out as in example 3, except that:
in step S1, 1.5 parts of wrinkled gianthyssop herb, 2 parts of astragalus, 1 part of yellow answer and 1 part of blackberry lily are mixed and crushed into 150 meshes according to parts by weight to obtain the antibacterial composition.
Example 6
This example was carried out as in example 2, with the following differences:
in step S2, 5 parts of the antibacterial composition and 3 parts of the dispersant are mixed at 240r/min for 7min, 1 part of the silane coupling agent is added and mixed at 240r/min for 7min, 96 parts of PP resin, 42 parts of POE plastic and 32 parts of HDPE resin are added and mixed at 240r/min for 7min, and the premix is obtained.
Example 7
This example was carried out as in example 2, with the following differences:
in step S2, 5 parts of the antibacterial composition and 3 parts of the dispersant are mixed at 240r/min for 7min, 2 parts of the silane coupling agent are added and mixed at 240r/min for 7min, 96 parts of PP resin, 42 parts of POE plastic and 32 parts of HDPE resin are added and mixed at 240r/min for 7min, and the premix is obtained.
Example 8
This example was carried out as in example 2, with the following differences:
in step S2, 5 parts of the antibacterial composition and 3 parts of the dispersant are mixed at 240r/min for 7min, 3 parts of the silane coupling agent are added and mixed at 240r/min for 7min, 96 parts of PP resin, 42 parts of POE plastic and 32 parts of HDPE resin are added and mixed at 240r/min for 7min, and the premix is obtained.
Comparative example 1
This example was carried out as in example 2, with the following differences:
in step S1, 2 parts of astragalus, 1 part of radix astragali and 1 part of blackberry lily are mixed and crushed into 130 meshes according to the parts by weight, and the antibacterial composition is obtained.
Comparative example 2
This example was carried out as in example 2, with the following differences:
in step S1, 1.5 parts of wrinkled gianthyssop herb, 1 part of yellow answer and 1 part of blackberry lily are mixed and crushed into 130 meshes according to the parts by weight to obtain the antibacterial composition.
Comparative example 3
This example was carried out as in example 2, with the following differences:
in step S1, 1.5 parts of wrinkled gianthyssop herb, 2 parts of astragalus and 1 part of blackberry lily are mixed and crushed into 130 meshes according to the parts by weight, and the antibacterial composition is obtained.
Comparative example 4
This example was carried out as in example 2, with the following differences:
in step S1, 1.5 parts of wrinkled gianthyssop herb, 2 parts of astragalus and 1 part of radix astragali are mixed and crushed into 130 meshes according to the parts by weight to obtain the antibacterial composition.
Comparative example 5
This example was carried out as in example 2, with the following differences:
in step S2, the bacteriostatic composition is not added.
Test of antibacterial Property
The antibacterial property test was carried out on the plastics prepared in examples 1 to 8 and comparative examples 1 to 5 according to the regulations in QB/T2591 and 2003A "antibacterial property test method and antibacterial effect" and the test results are shown in Table 1.
TABLE 1 results of the antibacterial Properties
As can be seen from Table 1, the average antibacterial rate of the plastics prepared in examples 1-8 is over 95%, which is obviously superior to that of comparative example 5, and the components of the plastic disclosed by the invention are scientifically and reasonably selected and proportioned, so that the growth and reproduction of fungi in the plastic can be effectively inhibited, and the antibacterial performance of the plastic is improved.
As can be seen from the results of examples 1 and 4, and examples 3 and 5, the antibacterial effect is the best when the agastache rugosus 1.5 parts, the astragalus membranaceus 2 parts, the radix astragali 1 part and the blackberry lily 1 part are used in parts by weight.
As can be seen from example 2 and examples 6-8, the addition of the silane coupling agent can improve the bacteriostatic effect of the plastic, because it improves the stability of the bacteriostatic composition in the plastic.
As can be seen from the example 2 and the comparative examples 1 to 4, when any one of the agastache rugosus, the astragalus mongholicus, the radix astragali and the blackberry lily is lacked in the components, the antibacterial effect of the plastic is reduced, and the selection and the proportion of the antibacterial components are reasonable and none of the antibacterial components is available.
Mechanical Property test
The plastics prepared in examples 1 to 8 and comparative examples 1 to 5 were subjected to mechanical property tests, and the test standards and test results are shown in Table 2.
TABLE 2 mechanical Property test results
As can be seen from Table 2, the addition of the antibacterial composition into the plastic has little effect on the mechanical properties of the plastic and still maintains a high level, which indicates that the antibacterial plastic prepared by the invention has a reasonable proportion.
As can be seen from the examples 2 and 6 to 8, the addition of the silane coupling agent is beneficial to improving the mechanical properties of the plastic, because the addition of the silane coupling agent increases the binding force between the antibacterial composition and PP resin, POE plastic and HDPE resin, and further improves the overall stability and mechanical properties of the plastic.
In conclusion, the plastic for the automotive interior trim part has excellent antibacterial performance and mechanical performance, can be used for manufacturing various automotive interior trim parts such as a back door, a trunk protective plate, a seat support, a gear shifting support, a glove box inner cover plate, a glove box hopper, an auxiliary instrument panel body, a panel storage box and the like, effectively improves the sanitary performance of the inner space of an automobile, and keeps human health.
The above-mentioned embodiments are merely illustrative and not restrictive, and those skilled in the art can modify the embodiments without inventive contribution as required after reading this specification, but only fall within the scope of the claims of the present invention.
Claims (8)
1. A plastic suitable for automotive interior parts is characterized in that: the paint comprises the following components in parts by weight: 86-106 parts of PP resin, 34-52 parts of POE plastic, 28-40 parts of HDPE resin, 1.5-4.6 parts of dispersant and 3-9 parts of antibacterial composition; wherein, the bacteriostatic composition comprises 1 to 2 parts of ageratum, 1 to 3 parts of astragalus, 0.5 to 2 parts of yellow answer and 0.5 to 2 parts of blackberry lily by weight.
2. The plastic material for automotive interior parts according to claim 1, wherein: the antibacterial composition comprises 1.5 parts of wrinkled gianthyssop herb, 2 parts of astragalus, 1 part of yellow answer and 1 part of blackberry lily by weight.
3. The plastic material for automotive interior parts according to claim 1, wherein: the dispersing agent is polyethylene wax.
4. A method for preparing a plastic material suitable for use in automotive interior parts according to any one of claims 1 to 3, comprising the steps of:
s1, mixing and crushing the agastache rugosus, the astragalus membranaceus, the yellow answer and the blackberry lily to 150 meshes by weight to obtain the antibacterial composition;
s2, mixing the antibacterial composition and the dispersant for 5-8 min at 220-260 r/min according to parts by weight, adding PP resin, POE plastic and HDPE resin, and continuously mixing at 220-260 r/min for 5-8 min to obtain a premix;
and S3, granulating the premix by a screw extrusion process.
5. The plastic suitable for automotive upholsteries as claimed in claim 1, further comprising 1-3 parts by weight of a silane coupling agent.
6. The plastic suitable for the automotive interior trim part, according to claim 5, is characterized by comprising the following components in parts by weight: 96 parts of PP resin, 42 parts of POE plastic, 32 parts of HDPE resin, 3 parts of dispersing agent, 5 parts of antibacterial composition and 2 parts of silane coupling agent.
7. A method for preparing the plastic suitable for the automotive interior parts, according to the claim 5 or 6, is characterized by comprising the following steps:
s1, mixing and crushing the agastache rugosus, the astragalus membranaceus, the yellow answer and the blackberry lily to 150 meshes by weight to obtain the antibacterial composition;
s2, mixing the antibacterial composition and the dispersant for 5-8 min at 220r/min-260r/min, adding the silane coupling agent, continuing to mix at 220r/min-260r/min for 5-8 min, adding the PP resin, the POE plastic and the HDPE resin, continuing to mix at 220r/min-260r/min for 5-8 min to obtain a premix;
and S3, granulating the premix by a screw extrusion process.
8. The method for preparing plastic suitable for automotive interiors, according to claim 4 or 7, wherein: the granulation temperature of the screw extrusion process is 190-205 ℃.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810975166.3A CN110857348A (en) | 2018-08-24 | 2018-08-24 | Plastic suitable for automotive interior parts and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810975166.3A CN110857348A (en) | 2018-08-24 | 2018-08-24 | Plastic suitable for automotive interior parts and preparation method thereof |
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| CN110857348A true CN110857348A (en) | 2020-03-03 |
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| CN201810975166.3A Pending CN110857348A (en) | 2018-08-24 | 2018-08-24 | Plastic suitable for automotive interior parts and preparation method thereof |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103937108A (en) * | 2014-05-12 | 2014-07-23 | 宁波高新区卓尔化工科技有限公司 | Plastic for automotive interior parts and preparation method thereof |
| CN105255007A (en) * | 2015-11-03 | 2016-01-20 | 芜湖德鑫汽车部件有限公司 | Antibacterial rear air discharge connecting pipe of automobile air conditioner and preparation method thereof |
| CN105733134A (en) * | 2016-04-26 | 2016-07-06 | 安徽悦尔伟塑料机械有限公司 | Anti-mildew plastic and preparation method thereof |
-
2018
- 2018-08-24 CN CN201810975166.3A patent/CN110857348A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103937108A (en) * | 2014-05-12 | 2014-07-23 | 宁波高新区卓尔化工科技有限公司 | Plastic for automotive interior parts and preparation method thereof |
| CN105255007A (en) * | 2015-11-03 | 2016-01-20 | 芜湖德鑫汽车部件有限公司 | Antibacterial rear air discharge connecting pipe of automobile air conditioner and preparation method thereof |
| CN105733134A (en) * | 2016-04-26 | 2016-07-06 | 安徽悦尔伟塑料机械有限公司 | Anti-mildew plastic and preparation method thereof |
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