CN111484733A - Low-temperature-resistant anti-falling box material and preparation method thereof - Google Patents
Low-temperature-resistant anti-falling box material and preparation method thereof Download PDFInfo
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- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
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- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
- C08J5/0405—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres
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- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
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- C08J2451/00—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
- C08J2451/04—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers grafted on to rubbers
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- C08J2451/00—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
- C08J2451/06—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
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- C08K5/00—Use of organic ingredients
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Abstract
The invention discloses a low-temperature-resistant and drop-resistant box body material and a preparation method thereof. The box body material comprises the following raw materials in percentage by mass: 610-60% of PA; 8-20% of a low temperature resistant toughening agent; 10-30% of a reinforcing filler; 0.4-1% of antioxidant; 0.3-1% of a lubricant; 0.5-1% of a coupling agent. The invention has the advantages that the prepared box body material still has the characteristics of good toughness, good falling resistance, excellent mechanical property at normal temperature and the like under the low-temperature condition. Meanwhile, the preparation method is simple and easy to implement and is easy for industrial production.
Description
Technical Field
The invention belongs to the field of high polymer materials, and particularly relates to a low-temperature-resistant anti-falling box material and a preparation method thereof.
Background
Polyamide (PA) is an engineering plastic, has excellent mechanical property, corrosion resistance, electrical insulation, wear resistance and self-lubricating property, and has the characteristics of easy processing, low density and the like. The method is widely applied to the fields of automobiles, electronic appliances, mechanical instruments, buildings, rail transit, sports equipment and the like. However, nylon (PA) has the disadvantages of high water absorption and unstable size. To compensate for the above disadvantages and improve the PA performance, the addition of mineral or glass fibers is a common method. Meanwhile, nylon (PA) has the characteristics of easy embrittlement at low temperature, poor impact property and the like, and is easy to crack when falling. The application of the material as a box body material in the low-temperature field is limited. Therefore, the low temperature resistant reinforced modified PA becomes a focus of attention in academia and industry.
The low temperature resistant toughening agents commonly used at present mainly comprise ① maleic anhydride grafted compatilizer, ② ethylene-vinyl acetate copolymer (EVA), ③ styrene-butadiene thermoplastic elastomer (SBS), ④ Ethylene Propylene Diene Monomer (EPDM) and the like
In view of the above, it is necessary to develop a low temperature resistant and drop resistant box material.
Disclosure of Invention
The invention aims to provide a box material with low temperature resistance and comprehensive mechanical properties and a preparation method thereof. The composite material meets the use requirements of box body materials in the fields of civil use, military use and the like.
In order to achieve the purpose, the technical scheme of the invention is to provide a low-temperature-resistant and drop-resistant box body material, and the composite material is prepared from the following raw materials in percentage by mass:
PA6 10～60％；
8-20% of a low temperature resistant toughening agent;
10-30% of a reinforcing agent;
0.4-1% of antioxidant;
0.3-1% of a lubricant;
0.5-1 part of coupling agent.
2. The invention relates to a low-temperature-resistant anti-falling box material which is characterized in that: the low-temperature resistant toughening agent is one or more of maleic anhydride grafted POE (J-POE), maleic anhydride grafted PE (J-PE), maleic anhydride grafted EPDM (J-EPDM), and maleic acid grafted SBS (J-SBS).
3. The invention relates to a low-temperature-resistant anti-falling box material which is characterized in that: the reinforcing agent is one or more of long glass fiber, short glass fiber, mica powder, talcum powder and montmorillonite.
4. The invention relates to a low-temperature-resistant anti-falling box material which is characterized in that: the antioxidant is one or more of antioxidant 1098, antioxidant 1010, antioxidant 168 and antioxidant DSTP.
5. The invention relates to a low-temperature-resistant anti-falling box material which is characterized in that: the coupling agent is one or more of a silane coupling agent KH550, a silane coupling agent KH560 and a titanate coupling agent.
6. The preparation method of the low-temperature-resistant and drop-resistant box body material comprises the following preparation processes: adding PA6, low temperature resistant toughening agent, antioxidant, lubricant, reinforcing agent (except glass fiber) and coupling agent into a high-speed stirrer in proportion, and uniformly mixing. And adding the glass fibers into a double-screw extruder from a main feed, adding the glass fibers into the double-screw extruder from a side position, and performing melt mixing, extrusion and granulation to obtain a low-temperature-resistant anti-falling box material, wherein the processing temperature is 245-285 ℃, and the screw rotation speed is 180-300 r/min. The box material is dried for 4 hours at 100 ℃ and then is injection molded into a test sample strip, and the injection molding temperature is 260-285 ℃.
Drawings
FIG. 1 is an external view of the box before it falls;
FIG. 2 is an external view of the box after falling at normal temperature;
fig. 3 is an external view of the box after falling at low temperature.
Detailed Description
The present invention will be described in further detail with reference to examples, but the present invention is not limited to these examples
The low-temperature-resistant and drop-resistant box body material comprises the following components in percentage by mass:
PA6:10～60％；
8-20% of a low temperature resistant toughening agent;
10-30% of a reinforcing agent;
0.4-1% of antioxidant;
0.3-1% of a lubricant;
0.5-1 part of coupling agent.
The information of the selected raw materials is as follows:
PA6(YH 800): basingdivision of China petrochemical Co., Ltd
PA6(YH 3200): basingdivision of China petrochemical Co., Ltd
Nylon slicing: tianjin Haiying group Co Ltd
Maleic anhydride grafted POE (J-POE): shenyang Ketong Plastic science and technology Co Ltd
Maleic anhydride grafted PE (J-PE): shenyang Ketong Plastic science and technology Co Ltd
Maleic anhydride grafted EPDM (J-EPDM): jiayi compatilizer Jiangsu Co., Ltd
Maleic acid grafted SBS (J-SBS): shenyang Ketong Plastic science and technology Co Ltd
Glass fiber: chongqing International composite Co., Ltd
Mica powder: chuzhou Gerui mining Co Ltd
Talc powder: dalian Jiacheng magnesium industries, Ltd
Montmorillonite: guangzhou hundred million peaking Industrial and technology Co Ltd
Antioxidant 1098, antioxidant 1010, antioxidant 168, antioxidant DSTP: tianjin Lianlong New Material Co Ltd
Silane coupling agent KH550, silane coupling agent KH560, titanate coupling agent: nanjing eosin Fine chemical Co., Ltd
In the invention, the performance test of the low-temperature-resistant and drop-resistant box body material refers to the following standards:
TABLE 1 Performance test Standard of Low temperature resistant and drop resistant Box Material
Example 1.
1. Adding the PA6, the low-temperature resistant toughening agent, the antioxidant, the reinforcing agent (except the glass fiber), the lubricant and the coupling agent into a high-speed stirrer in proportion, and uniformly mixing for 3 minutes.
2. And adding the mixed materials into an extruder from a main feed, adding glass fibers from a side feed, and extruding and granulating at the extrusion temperature of 245-285 ℃ and the screw rotation speed of 180-300 r/min.
3. The box material is dried for 4 hours at 100 ℃ and then is injection molded into a test sample strip, and the injection molding temperature is 260-285 ℃.
The examples and comparative formulations are as follows in table 2:
TABLE 2 formulation composition of examples and comparative examples
In the invention, the performance pairs of the low-temperature-resistant and drop-resistant box material in the embodiments 1-7 and the comparative example are as follows:
TABLE 3 comparison of the properties of the examples with those of the comparative examples
As can be seen from Table 3, the following results were obtained in examples 1 to 7 and comparative example 1: when the box body material is not modified at low temperature, the impact strength of the material is not high. In the embodiment, after the box body material is subjected to low-temperature drop-resistant modification, the normal-temperature impact strength and the drop resistance of the material are obviously improved.
It should be understood by those skilled in the art that various changes and modifications can be made to the above embodiments without departing from the scope of the present invention, and any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention are within the scope of the present invention.
Claims (6)
1. The utility model provides a low temperature resistant anti falling box material which characterized in that: the material is composed of the following raw materials by mass percent: 610-60% of PA; 8-20% of a low temperature resistant toughening agent; 10-30% of a reinforcing agent; 0.4-1% of antioxidant; 0.3-1% of a lubricant; 0.5-1% of a coupling agent.
2. The low-temperature-resistant and drop-resistant box material as claimed in claim 1, wherein: the low temperature resistant toughening agent is one or more of maleic anhydride grafted POE (J-POE), maleic anhydride grafted PE (J-PE), maleic anhydride grafted EPDM (J-EPDM), (POE) and maleic acid grafted SBS (J-SBS).
3. The low-temperature-resistant and drop-resistant box material as claimed in claim 1, wherein: the reinforcing agent is one or more of glass fiber, mica powder, talcum powder and montmorillonite.
4. The low-temperature-resistant and drop-resistant box material as claimed in claim 1, wherein: the antioxidant is one or more of antioxidant 1098, antioxidant 1010, antioxidant 168 and antioxidant DSTP.
5. The low-temperature-resistant and drop-resistant box material as claimed in claim 1, wherein: the coupling agent is one or more of a silane coupling agent KH550, a silane coupling agent KH560 and a titanate coupling agent.
6. The low-temperature-resistant and drop-resistant box material as claimed in any one of claims 1 to 5, wherein: the preparation method comprises the following preparation processes: adding PA6, a low-temperature-resistant toughening agent, an antioxidant, a lubricant, a reinforcing agent (except glass fibers) and a coupling agent into a high-speed stirrer in proportion, uniformly mixing, adding the mixture into a double-screw extruder from a main feed, adding the glass fibers from a side feed, and performing melt mixing, extrusion and granulation to obtain a low-temperature-resistant anti-falling box material, wherein the processing temperature is 245-285 ℃, and the screw rotation speed is 180-300 r/min.
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| CN102850784A (en) * | 2012-09-06 | 2013-01-02 | 江苏兆鋆新材料科技有限公司 | Nylon 6 modified material and preparation method thereof |
| CN103467977A (en) * | 2013-09-16 | 2013-12-25 | 广州市合诚化学有限公司 | Low temperature resistant anti-impact nylon 6 composite for snowboard and preparation method of composite |
| CN103665838A (en) * | 2012-09-12 | 2014-03-26 | 滁州格美特科技有限公司 | Reinforced impact-resistant nylon composite material and preparation method thereof |
| CN107057339A (en) * | 2017-06-02 | 2017-08-18 | 杭州本松新材料技术股份有限公司 | A kind of activeness and quietness nylon material and its preparation method and application |
| CN107652668A (en) * | 2016-07-26 | 2018-02-02 | 四川鑫达企业集团有限公司 | A kind of activeness and quietness nylon material available for 3D printing and preparation method thereof |
| CN109722014A (en) * | 2018-12-17 | 2019-05-07 | 会通新材料股份有限公司 | A kind of ultra-toughness low-temperature impact-resistant polyamide material and preparation method thereof |
-
2019
- 2019-12-20 CN CN201911322088.8A patent/CN111484733A/en active Pending
Patent Citations (6)
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| CN102850784A (en) * | 2012-09-06 | 2013-01-02 | 江苏兆鋆新材料科技有限公司 | Nylon 6 modified material and preparation method thereof |
| CN103665838A (en) * | 2012-09-12 | 2014-03-26 | 滁州格美特科技有限公司 | Reinforced impact-resistant nylon composite material and preparation method thereof |
| CN103467977A (en) * | 2013-09-16 | 2013-12-25 | 广州市合诚化学有限公司 | Low temperature resistant anti-impact nylon 6 composite for snowboard and preparation method of composite |
| CN107652668A (en) * | 2016-07-26 | 2018-02-02 | 四川鑫达企业集团有限公司 | A kind of activeness and quietness nylon material available for 3D printing and preparation method thereof |
| CN107057339A (en) * | 2017-06-02 | 2017-08-18 | 杭州本松新材料技术股份有限公司 | A kind of activeness and quietness nylon material and its preparation method and application |
| CN109722014A (en) * | 2018-12-17 | 2019-05-07 | 会通新材料股份有限公司 | A kind of ultra-toughness low-temperature impact-resistant polyamide material and preparation method thereof |
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