CN115895079A - High and low temperature resistant hard plastic material and prepared automobile fender - Google Patents
High and low temperature resistant hard plastic material and prepared automobile fender Download PDFInfo
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- CN115895079A CN115895079A CN202210946434.5A CN202210946434A CN115895079A CN 115895079 A CN115895079 A CN 115895079A CN 202210946434 A CN202210946434 A CN 202210946434A CN 115895079 A CN115895079 A CN 115895079A
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- plastic material
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
Abstract
The invention discloses a high and low temperature resistant hard plastic material which comprises the following preparation raw materials in parts by weight: 1-3 parts of plastic base material, 0.05-0.15 part of compatilizer, 0.01-0.1 part of lubricant, 2-6 parts of filler and 0.01-0.05 part of auxiliary agent. The invention improves the hardness and toughness of the hard plastic material by adopting the combination of polyethylene, polypropylene and chlorinated polyethylene, and the ratio of polyethylene, polypropylene 1: (0.5-0.7) in a weight ratio to provide a plastic material with good molding effect. And the shock resistance of the hard plastic in high and low temperature environments is improved by adding the silicon powder, the stone and the heat stabilizer, and the hard plastic is particularly suitable for application in the field of automobile accessories.
Description
Technical Field
The invention relates to a high and low temperature resistant hard plastic material, relates to C08K, and particularly relates to the field of compositions taking organic high molecular compounds as base materials.
Background
With the development of the automobile industry and the increase of the automobile yield, the application of plastics in automobile parts is more and more extensive, and the high and low temperature resistance of the traditional plastic material is too poor to meet the driving requirements of automobiles in extreme environments, so that the development of a high and low temperature resistant plastic material applied to the automobile parts is very important.
Chinese invention patent CN201811078717.2 discloses a high strength plastic for automobiles, which is prepared by using ABS as a main raw material and carbon fibers as a reinforcing material, so that the prepared plastic material has high tensile strength, but may have poor impact resistance in a high temperature environment; chinese invention patent CN201811078689.4 discloses a heat-resistant plastic for automobiles, which can be used under high temperature conditions by introducing glass fibers and an anti-aging agent, but has the problem of poor mechanical properties under low temperature conditions.
Disclosure of Invention
In order to improve the high and low temperature resistance of the hard plastic material, the first aspect of the invention provides a high and low temperature resistant hard plastic material, which is prepared from the following raw materials in parts by weight: 1-3 parts of plastic base material, 0.05-0.15 part of compatilizer, 0.01-0.1 part of lubricant, 2-6 parts of filler and 0.01-0.05 part of auxiliary agent.
In a preferred embodiment, the plastic substrate is selected from one or more of polyethylene, polypropylene, polyvinyl chloride, chlorinated polyethylene, polystyrene, polytetrafluoroethylene, and polyamide.
As a preferred embodiment, the plastic substrate is a combination of polyethylene, polypropylene and chlorinated polyethylene.
As a preferred embodiment, the weight ratio of the polyethylene, the polypropylene and the chlorinated polyethylene is (1-1.5): (0.5-1): (0.03-0.05).
As a preferred embodiment, the weight ratio of the polyethylene, the polypropylene and the chlorinated polyethylene is (1-1.3): (0.7-0.9): (0.04-0.05).
As a preferred embodiment, the weight ratio of the polyethylene, the polypropylene and the chlorinated polyethylene is 1.276:0.851:0.043.
as a preferred embodiment, the compatibilizer is one or a combination of several selected from ethylene-butene polymer, ethylene-octene polymer, and acrylamide polymer.
As a preferred embodiment, the compatibilizer is an ethylene-octene polymer.
As a preferred embodiment, the lubricant is selected from one or more of stearic acid, butyl stearate, oleamide, ethylene bis stearamide, liquid paraffin, microcrystalline paraffin and natural paraffin.
As a preferred embodiment, the lubricant is a combination of stearic acid and microcrystalline paraffin.
As a preferred embodiment, the weight ratio of stearic acid to microcrystalline paraffin is 1: (0.4-0.6).
As a preferred embodiment, the weight ratio of stearic acid to microcrystalline wax is 1: (0.45-0.5).
As a preferred embodiment, the weight ratio of stearic acid to microcrystalline wax is 1:0.488.
in the experimental process, the applicant finds that PP and PE are adopted as plastic base materials, and the weight ratio of the PP to the PE is 1: (0.4-0.6) the combination of stearic acid and paraffin can improve the hardness of the plastic material, increase the toughness of the plastic material and reduce the density of the material, and has the effects of reducing the mass of a vehicle body and reducing the oil consumption when being applied to automobile parts. The possible reasons for guessing are: the weight ratio is (1-1.5): (0.5-1) the combination of PP and PE can make the formed rigid plastic material have lighter material density, and simultaneously, the hardness and toughness of the rigid plastic material are not influenced, but polymer molecular chains between melts after PP and PE are melted are longer, and the moldability is not good in the melt shaping process, and the weight ratio of the PP to the PE is 1: (0.4-0.6) combination of stearic acid and paraffin, the paraffin has certain compatibility with PP and PE respectively, can weaken intermolecular acting force, promote the molecular chains to slide and rotate when the melt is molded, thus improving the moldability of the polymer, and meanwhile, the stearic acid and the paraffin have synergistic effect, the stearic acid migrates out in the plastic melt, forms a lubricating layer in directional arrangement on the surface of the melt, weakens the friction between the plastic melt and a shaping mold, is easy to demould after molding, and further improves the molding effect of the plastic material.
In a preferred embodiment, the filler is selected from one or a combination of calcium carbonate, talcum powder, graphite, silicon powder, clay, kaolin, asbestos, mica, white carbon black, calcium sulfate and stone.
As a preferred embodiment, the filler is a combination of silica fume and stone.
As a preferred embodiment, the weight ratio of the silicon powder to the stone material is 1: (0.08-0.09).
As a preferred embodiment, the weight ratio of the silicon powder to the stone material is 1:0.089.
in a preferred embodiment, the particle size of the silicon powder is 800 to 1100 mesh, and more preferably, the particle size of the silicon powder is 1000 mesh.
As a preferred embodiment, the stone is of grade C, and further preferably, the stone of grade C comprises C1-C5 materials.
As a preferred embodiment, the weight ratio of the C1-C5 materials is 1:1:1:1:1.
in a preferred embodiment, the auxiliary agent is selected from one or a combination of several of an antioxidant, an ultraviolet absorber, a plasticizer, a heat stabilizer and a mildew inhibitor.
As a preferred embodiment, the auxiliary agent is a heat stabilizer.
As a preferred embodiment, the heat stabilizer is selected from one or a combination of several of calcium stearate, calcium ricinoleate, zinc stearate, zinc ricinoleate, and epoxidized soybean oil.
As a preferred embodiment, the heat stabilizer is a combination of calcium stearate and zinc stearate.
As a preferred embodiment, the weight ratio of calcium stearate to zinc stearate is 1: (0.3-0.6).
As a preferred embodiment, the weight ratio of calcium stearate to zinc stearate is 1:0.45.
the invention provides a vehicle mudguard made of hard plastic material with high and low temperature resistance, which comprises a mounting part, and a functional part is arranged below the mounting part.
As a preferred embodiment, the mounting part comprises a vertical mounting part and a horizontal mounting part, and screw holes are formed in the vertical mounting part and the horizontal mounting part.
In a preferred embodiment, the maximum length of the functional part is 4 to 6cm.
As a preferred embodiment, the method for manufacturing the automobile mudguard made of hard plastic material resistant to high and low temperatures comprises the following steps:
(1) Adding all the raw materials into a mixer and uniformly mixing;
(2) Conveying the mixture to an internal mixer, raising the temperature to 150-220 ℃, reacting for 12-17min, and extruding and granulating;
(3) And carrying out compression molding treatment on the prepared particles, and cooling and shaping to obtain the particles.
Compared with the prior art, the invention has the following beneficial effects:
(1) The high and low temperature resistant hard plastic material disclosed by the invention has the advantages that the hardness and toughness of the hard plastic material are improved by adopting the combination of polyethylene, polypropylene and chlorinated polyethylene, and the ratio of polyethylene to polypropylene is 1: (0.5-0.7) in a weight ratio to provide a plastic material with good molding effect.
(2) According to the high and low temperature resistant rigid plastic material, the silicon powder, the stone and the heat stabilizer are added, so that the impact resistance of the rigid plastic in a high and low temperature environment is improved, and the high and low temperature resistant rigid plastic material is particularly suitable for application in the field of automobile accessories.
(3) According to the high and low temperature resistant hard plastic material, the silica powder with the size of 1000-1100 meshes is adopted, so that the dispersion effect of the filler in the melt is improved, the surface smoothness of the prepared automobile fender is improved, and the retention of mud ash on the surface of the fender is reduced.
Drawings
FIG. 1 is a schematic perspective view of the prepared automobile mudguard.
In the figure: 1. a vertical mounting portion; 2. a horizontal mounting section; 3. a functional section.
Detailed Description
The present invention will be specifically described below by way of examples. It should be noted that the following examples are only for illustrating the present invention and should not be construed as limiting the scope of the present invention, and that the insubstantial modifications and adaptations of the present invention by those skilled in the art based on the above disclosure are still within the scope of the present invention.
In addition, the starting materials used are all commercially available, unless otherwise specified.
Example 1
The high and low temperature resistant hard plastic material comprises the following preparation raw materials in parts by weight: 2.17 parts of plastic base material, 0.106 part of compatilizer, 0.064 part of lubricant, 3.66 parts of filler and 0.03 part of auxiliary agent.
The plastic base material is a combination of polyethylene, polypropylene and chlorinated polyethylene, and the weight ratio is 1.276:0.851:0.043, the polypropylene is 225, and is purchased from Ningbo Ming Yu plastication Co., ltd; the polyethylene is low-density Kunlun brand polyethylene and is purchased from Lanzhou petrochemical division company; the chlorinated polyethylene is 135A and is purchased from Jiangsu Shenglun chemical technology Co.
The compatibilizer was an ethylene-octene polymer, designated as Exxon 6202, available from New materials, inc., of hundred million, calif. Suzhou.
The lubricant is a combination of stearic acid and microcrystalline paraffin, and the weight ratio of the stearic acid to the microcrystalline paraffin is 1:0.488, stearic acid model SA-1801, available from Nantong sand and chemical engineering Limit company; the microcrystalline paraffin is Kunlun No. 58, and is available from Girardinia hupehensis Chun chemical engineering Co.
The filler is a combination of silica powder and stone, and the weight ratio is 1:0.089, wherein the silicon powder has the particle size of 1000 meshes and is purchased from Yongshun New materials science and technology Limited of Jiangsu; the stone comprises C1-C5 materials, wherein the weight ratio of the C1-C5 materials is 1:1:1:1:1, the C1 material is aluminum oxide and is purchased from Nantong Runfeng petrochemical industry Co., ltd, the C2 material is magnesium oxide and is purchased from Henghai magnesium industry Co., ltd in Hongkong, yun gang, the C3 material is paraffin and is purchased from Shandong Jinghao chemical industry Co., ltd, the C4 material is zinc stearate and is purchased from Heizhou city Lehua commercial and trade Co., ltd, and the C5 material is ceramic micropowder and is purchased from Shanghai Hui Jing sub-nanometer new material Co., ltd.
The auxiliary agent is a heat stabilizer, the heat stabilizer is a combination of calcium stearate and zinc stearate, and the weight ratio is 1:0.45.
the utility model provides a car fender by hard plastic material of resistant high low temperature makes, includes the installation department, the below of installation department is provided with functional unit 3, the installation department includes vertical installation department 1 and horizontal installation department 3, be provided with the screw on vertical installation department 1 and the horizontal installation department 2, the maximum length of functional unit 3 is 5.5cm.
The preparation method of the automobile mudguard made of the high and low temperature resistant hard plastic material comprises the following steps:
(1) Adding all the raw materials into a mixer and uniformly mixing;
(2) Conveying the mixture to an internal mixer, raising the temperature to 200 ℃, reacting for 15min, and extruding and granulating;
(3) And carrying out compression molding treatment on the prepared particles, and cooling and shaping to obtain the particles.
Example 2
The specific steps of the high and low temperature resistant hard plastic material are the same as those in example 1, but the difference is that the plastic base material is a combination of polyethylene, polypropylene and chlorinated polyethylene, and the weight ratio is 1.6:0.5:0.043.
a fender for a vehicle made of a hard plastic material resistant to high and low temperatures, wherein the specific component structure is as in example 1.
Example 3
The specific steps of the high-temperature and low-temperature resistant hard plastic material are the same as those of example 1, but the particle size of the silicon powder is 700 meshes,
a fender for a vehicle made of a hard plastic material resistant to high and low temperatures, wherein the specific component structure is as in example 1.
Example 4
The specific steps of the high and low temperature resistant rigid plastic material are the same as those in example 1, and the difference is that the heat stabilizer is calcium stearate.
A fender for a vehicle made of a hard plastic material resistant to high and low temperatures, wherein the specific component structure is as in example 1.
Performance testing
1. Impact strength: the impact resistance of the prepared hard plastic material is tested according to the GBT1843-2008 standard, and the test temperatures are-40 ℃,25 ℃ and 85 ℃.
2. Hardness: the hardness of the hard plastic material prepared by the test according to the GB/T2411-1980 standard is measured by a D-type Shore durometer.
The examples were tested according to the above criteria and the results are shown in table 1.
TABLE 1
Claims (10)
1. The high and low temperature resistant hard plastic material is characterized by comprising the following preparation raw materials in parts by weight: 1-3 parts of plastic base material, 0.05-0.15 part of compatilizer, 0.01-0.1 part of lubricant, 2-6 parts of filler and 0.01-0.05 part of auxiliary agent.
2. The high and low temperature resistant hard plastic material as claimed in claim 1, wherein the plastic substrate is selected from one or more of polyethylene, polypropylene, polyvinyl chloride, chlorinated polyethylene, polystyrene, polytetrafluoroethylene and polyamide.
3. The high and low temperature resistant rigid plastic material as claimed in claim 1, wherein the compatilizer is selected from one or more of ethylene-butene polymer, ethylene-octene polymer, and acrylamide polymer.
4. The high and low temperature resistant rigid plastic material as claimed in claim 1, wherein the lubricant is selected from one or more of stearic acid, butyl stearate, oleamide, ethylene bis stearamide, liquid paraffin, microcrystalline paraffin and natural paraffin.
5. The high and low temperature resistant rigid plastic material as claimed in claim 1, wherein the filler is selected from one or more of calcium carbonate, talcum powder, graphite, silica powder, clay, kaolin, asbestos, mica, white carbon black, calcium sulfate and stone.
6. The high and low temperature resistant hard plastic material as claimed in claim 1, wherein the auxiliary agent is selected from one or more of an antioxidant, an ultraviolet absorber, a plasticizer, a heat stabilizer and a mildew preventive.
7. A fender for a vehicle made of the high and low temperature resistant hard plastic material according to claim 1, comprising an installation part, wherein a functional part is provided below the installation part.
8. The fender of claim 7, wherein the mounting portion comprises a vertical mounting portion and a horizontal mounting portion, and screw holes are formed in the vertical mounting portion and the horizontal mounting portion.
9. The fender of claim 7, wherein the functional portion has a maximum length of 4-6cm.
10. The method for manufacturing a fender of an automobile made of a hard plastic material resistant to high and low temperatures according to claim 7, comprising the steps of:
(1) Adding all the raw materials into a mixer and uniformly mixing;
(2) Conveying the mixture to an internal mixer, raising the temperature to 150-220 ℃, reacting for 12-17min, and extruding and granulating;
(3) And carrying out compression molding treatment on the prepared particles, and cooling and shaping to obtain the particles.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210946434.5A CN115895079A (en) | 2022-08-08 | 2022-08-08 | High and low temperature resistant hard plastic material and prepared automobile fender |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210946434.5A CN115895079A (en) | 2022-08-08 | 2022-08-08 | High and low temperature resistant hard plastic material and prepared automobile fender |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102898723A (en) * | 2011-07-28 | 2013-01-30 | 合肥杰事杰新材料股份有限公司 | Polypropylene composition and preparation method thereof |
| CN109762255A (en) * | 2018-12-05 | 2019-05-17 | 广东聚石化学股份有限公司 | A kind of modified polypropylene composite material and preparation method thereof that the high oxygen index (OI) of oil resistant easily welds |
| CN113105685A (en) * | 2021-04-16 | 2021-07-13 | 潍坊亚星化学股份有限公司 | Chlorinated polyethylene blending modified high-density polyethylene material and preparation method thereof |
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2022
- 2022-08-08 CN CN202210946434.5A patent/CN115895079A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102898723A (en) * | 2011-07-28 | 2013-01-30 | 合肥杰事杰新材料股份有限公司 | Polypropylene composition and preparation method thereof |
| CN109762255A (en) * | 2018-12-05 | 2019-05-17 | 广东聚石化学股份有限公司 | A kind of modified polypropylene composite material and preparation method thereof that the high oxygen index (OI) of oil resistant easily welds |
| CN113105685A (en) * | 2021-04-16 | 2021-07-13 | 潍坊亚星化学股份有限公司 | Chlorinated polyethylene blending modified high-density polyethylene material and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 胡国和;郑化安;李应平;牛韬;李国法;: "共混改性制备高抗冲聚丙烯的研究进展", 合成材料老化与应用, no. 04, pages 115 - 118 * |
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