CN110713710A - High-toughness wear-resistant nylon engineering plastic - Google Patents
High-toughness wear-resistant nylon engineering plastic Download PDFInfo
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- CN110713710A CN110713710A CN201911033715.6A CN201911033715A CN110713710A CN 110713710 A CN110713710 A CN 110713710A CN 201911033715 A CN201911033715 A CN 201911033715A CN 110713710 A CN110713710 A CN 110713710A
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
- C08L77/02—Polyamides derived from omega-amino carboxylic acids or from lactams thereof
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- C08G69/48—Polymers modified by chemical after-treatment
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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
- C08L77/06—Polyamides derived from polyamines and polycarboxylic acids
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Abstract
The invention provides a high-toughness wear-resistant nylon engineering plastic which comprises, by weight, 100 parts of nylon resin, 5-20 parts of long carbon fibers, 2-15 parts of a toughening agent, 10-15 parts of a reinforcing agent, 10-25 parts of a wear-resistant agent, 3-8 parts of a sizing agent and 0-2 parts of an antioxidant, wherein the raw materials are proportioned in a high-speed mixer to be stirred and dispersed for 10-30min, and the high-toughness wear-resistant nylon engineering plastic is obtained through melt blending extrusion, traction, cooling and grain cutting.
Description
Technical Field
The invention relates to the field of modified engineering plastics, in particular to a high-toughness wear-resistant nylon engineering plastic.
Background
The reinforced polyamide composite material has the characteristics of high physical and mechanical properties, good thermal stability, good electrical properties, corrosion resistance and the like, and is widely applied to the industries of automobiles, electronics and electrics, national defense and military industry, mechanical equipment and the like. With the gradual implementation of policies such as 'steel replacement by plastic', 'light weight of automobiles', 'energy conservation and emission reduction', the application field of the polyamide composite material is continuously expanded, which puts higher requirements on the toughness, strength and other properties of the polyamide material.
Compared with other engineering plastics, the polyamide material is usually used in the manufacturing fields of gears, bearings and the like, but the polyamide has high friction coefficient and poor wear resistance under dry conditions, so that the wide application of the polyamide material in the field of engineering machinery is limited.
Disclosure of Invention
Aiming at the problems, the invention provides a high-toughness wear-resistant nylon engineering plastic.
The purpose of the invention is realized by adopting the following technical scheme:
the nylon engineering plastic with high toughness and wear resistance comprises, by relative weight, 100 parts of nylon resin, 5-20 parts of long carbon fibers, 2-15 parts of a toughening agent, 10-15 parts of a reinforcing agent, 10-25 parts of a wear-resistant agent, 3-8 parts of a sizing agent and 0-2 parts of an antioxidant;
preferably, the nylon engineering plastic comprises, by relative weight, 100 parts of nylon resin, 8-10 parts of long carbon fibers, 10-12 parts of a toughening agent, 12-14 parts of a reinforcing agent, 15-20 parts of a wear-resistant agent, 3-5 parts of a sizing agent and 0.2-0.8 part of an antioxidant;
preferably, the nylon resin is a copolymer of nylon 6 or nylon 66 or both;
preferably, the toughening agent is ureidopyrimidinone terminated hyperbranched polyamide;
preferably, the reinforcing agent is a hard microsphere, and the hard microsphere is one or more of a glass microsphere, an epoxy resin microsphere and an ultrafine ceramic microsphere;
preferably, the wear-resisting agent is one or more of polytetrafluoroethylene wax micropowder, talcum powder or nano silicon dioxide and nano aluminum oxide;
preferably, the antioxidant is a hindered phenol or phosphite antioxidant;
preferably, the hindered phenol antioxidant is an antioxidant 1010 and an antioxidant 1098, and the phosphite antioxidant is an antioxidant 168 and an antioxidant 626.
The preparation method of the nylon engineering plastic comprises the following steps:
s1 preparation of ureido pyrimidone terminated hyperbranched polyamide
Adding 0.05mol of maleic anhydride into 40mL of dioxane, stirring for dissolving, adding 0.5mol of diethylenetriamine, stirring for reacting for 2H at room temperature, evaporating to remove the solvent to obtain white powder, preparing 2g/L solution from dimethyl sulfoxide, adding 0.02mol of ethylenediamine, heating, stirring for refluxing, gradually heating to 90 ℃, keeping the temperature for reacting for 4H to obtain bright yellow liquid, cooling to 60 ℃, adding 12mL of 2-ureido-4- (1H) -pyrimidinone, continuing to keep the temperature, stirring for refluxing for 4H, and evaporating to remove the solvent after the reaction is finished to obtain the ureidopyrimidinone terminated hyperbranched polyamide;
s2, mixing the following raw materials in relative weight proportion: 100 parts of nylon resin, 5-20 parts of long carbon fibers, 2-15 parts of toughening agent, 10-15 parts of reinforcing agent, 10-25 parts of wear-resistant agent, 3-8 parts of impregnating compound and 0-2 parts of antioxidant, stirring and dispersing the proportioned raw materials in a high-speed mixer for 10-30min, feeding the dispersed raw materials into an extruder, and carrying out melt blending extrusion, traction, cooling and grain cutting to obtain the high-toughness wear-resistant nylon engineering plastic.
The invention has the beneficial effects that:
according to the preparation method, a hyperbranched polyamide system with hydrogen bond interaction between molecular chains is constructed through multiple hydrogen bonds of ureido pyrimidinone, and is added into nylon resin, so that the toughness of the nylon resin is improved, and meanwhile, the hyperbranched polyamide system has excellent compatibility and a stable blending structure; by adding the wear-resisting agent externally, the friction coefficient of the composite material is effectively reduced, the wear-resisting property is improved, and the wear of the composite material is reduced.
The high-toughness wear-resistant nylon engineering plastic is an engineering plastic which is subjected to reinforcing, toughening and modifying, has rigidity and toughness and balanced performance, and is good in wear resistance and heat resistance, excellent in toughness and impact resistance and high in mechanical strength.
Detailed Description
The invention is further described with reference to the following examples.
Example 1
The nylon engineering plastic with high toughness and wear resistance comprises, by relative weight, 100 parts of nylon resin, 10 parts of long carbon fiber, 10 parts of toughening agent, 12 parts of reinforcing agent, 16 parts of wear-resistant agent, 5 parts of impregnating compound and 0.4 part of antioxidant;
the nylon resin is nylon 6 or nylon 66 or a copolymer of the nylon 6 and the nylon 66; the toughening agent is ureido pyrimidone terminated hyperbranched polyamide; the reinforcing agent is hard microspheres, and the hard microspheres are glass microspheres, epoxy resin microspheres or superfine ceramic microspheres; the wear-resisting agent is polytetrafluoroethylene wax micro powder and nano silicon dioxide; the antioxidant is 1010;
the preparation method of the high-toughness wear-resistant nylon engineering plastic comprises the following steps:
s1 preparation of ureido pyrimidone terminated hyperbranched polyamide
Adding 0.05mol of maleic anhydride into 40mL of dioxane, stirring for dissolving, adding 0.5mol of diethylenetriamine, stirring for reacting for 2H at room temperature, evaporating to remove the solvent to obtain white powder, preparing 2g/L solution from dimethyl sulfoxide, adding 0.02mol of ethylenediamine, heating, stirring for refluxing, gradually heating to 90 ℃, keeping the temperature for reacting for 4H to obtain bright yellow liquid, cooling to 60 ℃, adding 12mL of 2-ureido-4- (1H) -pyrimidinone, continuing to keep the temperature, stirring for refluxing for 4H, and evaporating to remove the solvent after the reaction is finished to obtain the ureidopyrimidinone terminated hyperbranched polyamide;
s2, mixing the following raw materials in relative weight proportion: 100 parts of nylon resin, 10 parts of long carbon fiber, 10 parts of toughening agent, 12 parts of reinforcing agent, 16 parts of wear-resisting agent, 5 parts of impregnating compound and 0.4 part of antioxidant, stirring and dispersing the proportioned raw materials in a high-speed mixer for 10-30min, feeding the dispersed raw materials into an extruder, and carrying out melt blending extrusion, traction, cooling and grain cutting to obtain the high-toughness wear-resisting nylon engineering plastic.
Example 2
The nylon engineering plastic with high toughness and wear resistance comprises, by relative weight, 100 parts of nylon resin, 8 parts of long carbon fibers, 12 parts of a toughening agent, 14 parts of a reinforcing agent, 18 parts of a wear-resistant agent, 3 parts of a sizing agent and 0.7 part of an antioxidant;
the nylon resin is nylon 6 or nylon 66 or a copolymer of the nylon 6 and the nylon 66; the toughening agent is ureido pyrimidone terminated hyperbranched polyamide; the reinforcing agent is hard microspheres, and the hard microspheres are glass microspheres, epoxy resin microspheres or superfine ceramic microspheres; the wear-resisting agent is polytetrafluoroethylene wax micro powder and nano silicon dioxide; the antioxidant is 1010;
the preparation method of the high-toughness wear-resistant nylon engineering plastic comprises the following steps:
s1 preparation of ureido pyrimidone terminated hyperbranched polyamide
Adding 0.05mol of maleic anhydride into 40mL of dioxane, stirring for dissolving, adding 0.5mol of diethylenetriamine, stirring for reacting for 2H at room temperature, evaporating to remove the solvent to obtain white powder, preparing 2g/L solution from dimethyl sulfoxide, adding 0.02mol of ethylenediamine, heating, stirring for refluxing, gradually heating to 90 ℃, keeping the temperature for reacting for 4H to obtain bright yellow liquid, cooling to 60 ℃, adding 12mL of 2-ureido-4- (1H) -pyrimidinone, continuing to keep the temperature, stirring for refluxing for 4H, and evaporating to remove the solvent after the reaction is finished to obtain the ureidopyrimidinone terminated hyperbranched polyamide;
s2, mixing the following raw materials in relative weight proportion: 100 parts of nylon resin, 8 parts of long carbon fibers, 12 parts of toughening agent, 14 parts of reinforcing agent, 18 parts of wear-resisting agent, 3 parts of impregnating compound and 0.7 part of antioxidant, stirring and dispersing the proportioned raw materials in a high-speed mixer for 10-30min, feeding the dispersed raw materials into an extruder, and performing melt blending extrusion, traction, cooling and grain cutting to obtain the high-toughness wear-resisting nylon engineering plastic.
Example 3
The nylon engineering plastic with high toughness and wear resistance comprises, by relative weight, 100 parts of nylon resin, 10 parts of long carbon fiber, 10 parts of toughening agent, 12 parts of reinforcing agent, 16 parts of wear-resistant agent, 5 parts of impregnating compound and 0.4 part of antioxidant;
the nylon resin is nylon 6 or nylon 66 or a copolymer of the nylon 6 and the nylon 66; the toughening agent is ureido pyrimidone terminated hyperbranched polyamide; the reinforcing agent is hard microspheres, and the hard microspheres are glass microspheres, epoxy resin microspheres or superfine ceramic microspheres; the wear-resisting agent is polytetrafluoroethylene wax micro powder and nano alumina; the antioxidant is antioxidant 168;
the preparation method of the high-toughness wear-resistant nylon engineering plastic comprises the following steps:
s1 preparation of ureido pyrimidone terminated hyperbranched polyamide
Adding 0.05mol of maleic anhydride into 40mL of dioxane, stirring for dissolving, adding 0.5mol of diethylenetriamine, stirring for reacting for 2H at room temperature, evaporating to remove the solvent to obtain white powder, preparing 2g/L solution from dimethyl sulfoxide, adding 0.02mol of ethylenediamine, heating, stirring for refluxing, gradually heating to 90 ℃, keeping the temperature for reacting for 4H to obtain bright yellow liquid, cooling to 60 ℃, adding 12mL of 2-ureido-4- (1H) -pyrimidinone, continuing to keep the temperature, stirring for refluxing for 4H, and evaporating to remove the solvent after the reaction is finished to obtain the ureidopyrimidinone terminated hyperbranched polyamide;
s2, mixing the following raw materials in relative weight proportion: 100 parts of nylon resin, 10 parts of long carbon fiber, 10 parts of toughening agent, 12 parts of reinforcing agent, 16 parts of wear-resisting agent, 5 parts of impregnating compound and 0.4 part of antioxidant, stirring and dispersing the proportioned raw materials in a high-speed mixer for 10-30min, feeding the dispersed raw materials into an extruder, and carrying out melt blending extrusion, traction, cooling and grain cutting to obtain the high-toughness wear-resisting nylon engineering plastic.
Examples of the experiments
On the basis of example 1, the performance parameters of nylon plastics prepared without adding reinforcing agent and toughening agent are respectively measured as follows:
| unnotched impact strength/kJ/m2 | Taber abrasion (mg/1000 times) | |
| Example 1 | 43.1 | 2.0 |
| Example 2 | 42.8 | 2.3 |
| Example 3 | 42.6 | 2.2 |
| Without addition of reinforcing agent | 37.5 | 5.2 |
| Without adding toughening agent | 39.8 | 5.9 |
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (9)
1. The high-toughness wear-resistant nylon engineering plastic is characterized by comprising, by relative weight, 100 parts of nylon resin, 5-20 parts of long carbon fibers, 2-15 parts of a toughening agent, 10-15 parts of a reinforcing agent, 10-25 parts of a wear-resistant agent, 3-8 parts of a sizing agent and 0-2 parts of an antioxidant.
2. The nylon engineering plastic of claim 1, wherein the nylon engineering plastic comprises, by weight, 100 parts of nylon resin, 8-10 parts of long carbon fibers, 10-12 parts of a toughening agent, 12-14 parts of a reinforcing agent, 15-20 parts of a wear-resistant agent, 3-5 parts of a sizing agent, and 0.2-0.8 part of an antioxidant.
3. A high toughness and wear resistance nylon engineering plastic according to claim 1 or 2, wherein said nylon resin is nylon 6 or nylon 66 or a copolymer of nylon 6 and nylon 66.
4. A high toughness and wear resistance nylon engineering plastic according to claim 1 or 2, characterized in that the toughening agent is ureido pyrimidone terminated hyperbranched polyamide.
5. A high-toughness wear-resistant nylon engineering plastic as claimed in claim 1 or 2, wherein said reinforcing agent is hard microspheres, and said hard microspheres are one or more of glass microspheres, epoxy resin microspheres, and ultrafine ceramic microspheres.
6. A high-toughness wear-resistant nylon engineering plastic as claimed in claim 1 or 2, wherein said wear-resistant agent is one or more of polytetrafluoroethylene wax micropowder, talcum powder, nano-silica and nano-alumina.
7. A high toughness and wear resistance nylon engineering plastic as claimed in claim 1 or 2, wherein said antioxidant is hindered phenol or phosphite antioxidant.
8. The high-toughness wear-resistant nylon engineering plastic as claimed in claim 7, wherein said hindered phenolic antioxidants are 1010 and 1098, and said phosphite antioxidants are 168 and 626.
9. The high-toughness wear-resistant nylon engineering plastic as claimed in claim 4, wherein the preparation of said nylon engineering plastic comprises the following steps:
s1 preparation of ureido pyrimidone terminated hyperbranched polyamide
Adding 0.05mol of maleic anhydride into 40mL of dioxane, stirring for dissolving, adding 0.5mol of diethylenetriamine, stirring for reacting for 2H at room temperature, evaporating to remove the solvent to obtain white powder, preparing 2g/L solution from dimethyl sulfoxide, adding 0.02mol of ethylenediamine, heating, stirring for refluxing, gradually heating to 90 ℃, keeping the temperature for reacting for 4H to obtain bright yellow liquid, cooling to 60 ℃, adding 12mL of 2-ureido-4- (1H) -pyrimidinone, continuing to keep the temperature, stirring for refluxing for 4H, and evaporating to remove the solvent after the reaction is finished to obtain the ureidopyrimidinone terminated hyperbranched polyamide;
s2, mixing the following raw materials in relative weight proportion: 100 parts of nylon resin, 5-20 parts of long carbon fibers, 2-15 parts of toughening agent, 10-15 parts of reinforcing agent, 10-25 parts of wear-resistant agent, 3-8 parts of impregnating compound and 0-2 parts of antioxidant, stirring and dispersing the proportioned raw materials in a high-speed mixer for 10-30min, feeding the dispersed raw materials into an extruder, and carrying out melt blending extrusion, traction, cooling and grain cutting to obtain the high-toughness wear-resistant nylon engineering plastic.
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| CN201911033715.6A CN110713710A (en) | 2019-10-28 | 2019-10-28 | High-toughness wear-resistant nylon engineering plastic |
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| CN201911033715.6A CN110713710A (en) | 2019-10-28 | 2019-10-28 | High-toughness wear-resistant nylon engineering plastic |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112079606A (en) * | 2020-09-17 | 2020-12-15 | 成都精准混凝土有限公司 | Non-ignition concrete and preparation method thereof |
| CN113136088A (en) * | 2021-04-09 | 2021-07-20 | 中北大学 | Method for preparing high-performance matrix resin based on quadruple hydrogen bond toughened polybenzoxazine |
| CN113354943A (en) * | 2021-05-14 | 2021-09-07 | 金旸（厦门）新材料科技有限公司 | Wear-resistant high-temperature nylon material for electronic connector |
-
2019
- 2019-10-28 CN CN201911033715.6A patent/CN110713710A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112079606A (en) * | 2020-09-17 | 2020-12-15 | 成都精准混凝土有限公司 | Non-ignition concrete and preparation method thereof |
| CN112079606B (en) * | 2020-09-17 | 2021-12-21 | 成都精准混凝土有限公司 | Non-ignition concrete and preparation method thereof |
| CN113136088A (en) * | 2021-04-09 | 2021-07-20 | 中北大学 | Method for preparing high-performance matrix resin based on quadruple hydrogen bond toughened polybenzoxazine |
| CN113136088B (en) * | 2021-04-09 | 2022-06-21 | 中北大学 | Method for preparing high-performance matrix resin based on quadruple hydrogen bond toughened polybenzoxazine |
| CN113354943A (en) * | 2021-05-14 | 2021-09-07 | 金旸（厦门）新材料科技有限公司 | Wear-resistant high-temperature nylon material for electronic connector |
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