CN111454571A - Preparation method of glass fiber reinforced PA56/PP alloy material - Google Patents
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- CN111454571A CN111454571A CN202010266550.3A CN202010266550A CN111454571A CN 111454571 A CN111454571 A CN 111454571A CN 202010266550 A CN202010266550 A CN 202010266550A CN 111454571 A CN111454571 A CN 111454571A
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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
- C08J5/06—Reinforcing macromolecular compounds with loose or coherent fibrous material using pretreated fibrous materials
- C08J5/08—Reinforcing macromolecular compounds with loose or coherent fibrous material using pretreated fibrous materials glass fibres
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- C08J2377/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
- C08J2377/06—Polyamides derived from polyamines and polycarboxylic acids
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- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/10—Homopolymers or copolymers of propene
- C08J2423/12—Polypropene
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/10—Homopolymers or copolymers of propene
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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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- 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
- C08J2451/08—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 macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
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- C08J2483/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Derivatives of such polymers
- C08J2483/04—Polysiloxanes
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- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/06—Pretreated ingredients and ingredients covered by the main groups C08K3/00 - C08K7/00
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
- C08K5/098—Metal salts of carboxylic acids
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- 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
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/14—Glass
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- C08K9/06—Ingredients treated with organic substances with silicon-containing compounds
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Abstract
The invention relates to the technical field of high polymer materials, in particular to a glass fiber reinforced PA56/PP alloy material and a preparation method thereof, wherein the glass fiber reinforced PA56/PP alloy material comprises the following components in parts by weight: the PA56/PP alloy material is reinforced by the glass fiber, so that the mechanical property of the PA56/PP alloy material is greatly improved, meanwhile, various properties of the PA56/PP alloy material are fully reflected, and the PA56/PP alloy material has good impact resistance and low water absorption. The preparation method of the invention has simple operation and high production benefit, and can reduce the product cost and expand the application range of PA 56.
Description
Technical Field
The invention belongs to the technical field of high polymer materials and processing, and particularly relates to a preparation method of a glass fiber reinforced PA56/PP alloy material.
Background
With the reduction of global petroleum energy and the improvement of environmental protection consciousness of people, the development of renewable bio-based polyamide from biomass raw materials becomes a hotspot for research and development of global chemical industry and related industries. The bio-based nylon PA56 is a novel bio-based polyamide synthesized by bio-based pentanediamine and petroleum-based adipic acid. The bio-based pentanediamine can be obtained by effectively utilizing starch microorganisms to convert saccharides, reduces the production cost, relieves the pressure of shortage of petroleum resources, improves the product quality, and is a very competitive nylon material.
PA56 has a molecular structure similar to that of PA66, a plurality of repeat unit amido bonds exist in a molecular main chain, and the molecular chain ends are carboxyl and amino. PA66 molecular chain presents central symmetry, and the density of hydrogen bonds formed among amide groups of the PA66 molecular chain is higher. And the molecular chain of PA56 is not centrosymmetric, so that the probability of forming hydrogen bonds among amide groups is greatly reduced. Research has shown that PA56 is not as crystalline as PA66, and has a melting point close to PA 66. Because the mechanical properties of PA56 and PA66 are relatively close to each other under the conditions of melting point, density and dry state, the application prospect of PA56 is widely concerned by chemical industry and related industries.
However, the PA56 has obvious defects in the aspect of engineering plastic application, the water absorption rate and the water absorption rate of the PA56 are both higher than those of PA66, and the dimensional stability of the PA 3526 is poorer than that of the PA 66. Secondly, PA56 is unstable in crystallization and poor in oxidation resistance, and the performance of the working material can change under a high-temperature environment for a long time. Meanwhile, after modification, the impact strength of the PA56 is lower than that of the PA 66. Therefore, the performance defects of high water absorption, low impact strength and the like of the PA56 are improved, so that the PA66 can be partially or completely replaced in the aspects of automobiles or electronic appliances, and the PA56 is widely applied to engineering plastics and has very important significance.
Disclosure of Invention
Aiming at the defects in the prior art, the glass fiber reinforced PA56/PP alloy material prepared by the invention has good impact resistance, lower water absorption, good dimensional stability and oxidation resistance, and can be used for large-scale production.
In order to realize one of the purposes, the invention provides a glass fiber reinforced PA56/PP alloy material, which adopts the following technical scheme:
a glass fiber reinforced PA56/PP alloy material is characterized by comprising the following components in parts by weight:
preferably, the moisture content of PA56 is 0.2% or less.
Preferably, the PP is one or a mixture of any two of homo-polypropylene and co-polypropylene, and the melt index of the PP is 5-30 g/10 min.
Preferably, the compatilizer is any one or any two of maleic anhydride grafted polyethylene oxide, maleic anhydride grafted POE and maleic anhydride grafted PP.
Preferably, the antioxidant is a mixture of hindered phenolic antioxidant and phosphite antioxidant 1: 1.
Preferably, the lubricant is one or a mixture of two of silicone and sodium stearate.
Preferably, the glass fiber is alkali-free glass fiber with the surface treated by a silane coupling agent.
The invention also aims to provide a preparation method of the glass fiber reinforced PA56/PP alloy material, which comprises the following steps:
s1, preparing raw materials: preparing the components in parts by weight.
S2, blending and extruding: the PA56, the PP, the compatilizer, the antioxidant, the lubricant and the glass fiber are mixed in proportion, then the mixture is added into a double-screw extruder, and the mixture is extruded, cooled, drawn and granulated to finally obtain the glass fiber reinforced PA56/PP alloy material.
Preferably, in step S2, the twin-screw extruder has a total temperature of 9 zones, the process temperatures of the eight zones are 265 ℃, 260 ℃, 255 ℃, 245 ℃, 235 ℃, 230 ℃, 225 ℃ and 230 ℃, respectively, and the rotation speed of the main machine is controlled at 400 rpm.
The invention has the beneficial effects that:
1) the invention relates to a glass fiber reinforced PA56/PP alloy material, which is prepared from the following components in parts by weight: PA56, PP, a compatilizer, an antioxidant, a lubricant and glass fiber, and the specific weight parts are reasonably selected, so that the glass fiber reinforced PA56/PP alloy material has good mechanical property and dimensional stability and good oxidation resistance, and can be widely applied to various engineering fields.
2) The preparation method for the glass fiber reinforced PA56/PP alloy material has the advantages of simple operation, convenient control, production cost reduction and stable product quality, and can be used for large-scale production.
Detailed Description
The technical solution of the present invention will be clearly and completely described below with reference to the attached tables in the embodiments of the present invention. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Example 1
The glass fiber reinforced PA56/PP alloy material for the embodiment comprises the following components in parts by weight: 44.5 parts of PA56, 20 parts of PP, 5 parts of compatilizer, 0.2 part of antioxidant, 0.3 part of lubricant and 30 parts of glass fiber.
The preparation method of the glass fiber reinforced PA56/PP alloy material comprises the following steps:
s1, blending and stirring PA56, PP, a compatilizer, an antioxidant and a lubricant uniformly according to a proportion;
s2, adding the mixture obtained in the step S1 into a double-screw extruder, wherein the temperature of the double-screw extruder is totally 9 zones, the process temperature of the eight zones is 265 ℃, 260 ℃, 255 ℃, 245 ℃, 235 ℃, 230 ℃, 225 ℃ and 230 ℃, the rotating speed of a main machine is controlled at 400 r/min, adding chopped glass fibers into the mixture from a lateral feed in the extrusion process, and finally extruding, cooling, drawing and granulating to obtain the PA56/PP alloy material for glass fiber reinforcement.
And drying the obtained material in a blower drying oven at 115 ℃ for 2-4 hours, and then performing injection molding to prepare test sample strips and products.
Example 2
The glass fiber reinforced PA56/PP alloy material for the embodiment comprises the following components in parts by weight: 44.5 parts of PA56, 10 parts of PP, 5 parts of compatilizer, 0.2 part of antioxidant, 0.3 part of lubricant and 40 parts of glass fiber.
The preparation method of the glass fiber reinforced PA56/PP alloy material comprises the following steps:
s1, blending and stirring PA56, PP, a compatilizer, an antioxidant and a lubricant uniformly according to a proportion;
s2, adding the mixture obtained in the step S1 into a double-screw extruder, wherein the temperature of the double-screw extruder is totally 9 zones, the process temperature of the eight zones is 265 ℃, 260 ℃, 255 ℃, 245 ℃, 235 ℃, 230 ℃, 225 ℃ and 230 ℃, the rotating speed of a main machine is controlled at 400 r/min, adding chopped glass fibers into the mixture from a lateral feed in the extrusion process, and finally extruding, cooling, drawing and granulating to obtain the PA56/PP alloy material for glass fiber reinforcement.
And drying the obtained material in a blower drying oven at 115 ℃ for 2-4 hours, and then performing injection molding to prepare test sample strips and products.
Example 3
The glass fiber reinforced PA56/PP alloy material for the embodiment comprises the following components in parts by weight: 44.5 parts of PA56, 30 parts of PP, 5 parts of compatilizer, 0.2 part of antioxidant, 0.3 part of lubricant and 20 parts of glass fiber.
The preparation method of the glass fiber reinforced PA56/PP alloy material comprises the following steps:
s1, blending and stirring PA56, PP, a compatilizer, an antioxidant and a lubricant uniformly according to a proportion;
s2, adding the mixture obtained in the step S1 into a double-screw extruder, wherein the temperature of the double-screw extruder is totally 9 zones, the process temperature of the eight zones is 265 ℃, 260 ℃, 255 ℃, 245 ℃, 235 ℃, 230 ℃, 225 ℃ and 230 ℃, the rotating speed of a main machine is controlled at 400 r/min, adding chopped glass fibers into the mixture from a lateral feed in the extrusion process, and finally extruding, cooling, drawing and granulating to obtain the PA56/PP alloy material for glass fiber reinforcement.
And drying the obtained material in a blower drying oven at 115 ℃ for 2-4 hours, and then performing injection molding to prepare test sample strips and products.
Performance test of products obtained in examples 1 to 3
The properties of the products of examples 1 to 3 were tested and evaluated by the following methods.
(1) And tensile strength: testing according to ASTM D638 standard method;
(2) bending strength: testing according to ASTM D790;
(3) flexural modulus: testing according to ASTM D790;
(4) izod notched impact strength: testing according to ASTM D256 standard method;
(5) water absorption: naturally placing at 23 deg.C, and testing with 50% humidity;
the performance test results of the glass fiber reinforced PA56/PP alloy materials prepared in the embodiments 1-3 are shown in the following table 1:
TABLE 1 Performance test results of glass fiber reinforced PA56/PP alloy materials of examples 1-3
The combination of the materials in the table 1 shows that the glass fiber reinforced PA56/PP alloy material has high impact resistance, good mechanical properties, low water absorption and good market popularization value.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (9)
1. The glass fiber reinforced PA56/PP alloy material is characterized by comprising the following components in parts by weight:
2. the glass fiber reinforced PA56/PP alloy material as claimed in claim 1, wherein: the PA56 has a water content of 0.2% or less.
3. The glass fiber reinforced PA56/PP alloy material as claimed in claim 1, wherein: the PP is one or mixture of any two of homo-polypropylene and co-polypropylene, and the melt index of the PP is 5-30 g/10 min.
4. The glass fiber reinforced PA56/PP alloy material as claimed in claim 1, wherein: the compatilizer adopts any one or any two of maleic anhydride grafted polyethylene oxide, maleic anhydride grafted POE and maleic anhydride grafted PP.
5. The glass fiber reinforced PA56/PP alloy material as claimed in claim 1, wherein: the antioxidant is a mixture of hindered phenol antioxidant and phosphite antioxidant 1: 1.
6. The glass fiber reinforced PA56/PP alloy material as claimed in claim 1, wherein: the lubricant is one or a mixture of two of silicone and sodium stearate.
7. The glass fiber reinforced PA56/PP alloy material as claimed in claim 1, wherein: the glass fiber is alkali-free glass fiber with the surface treated by silane coupling agent.
8. A preparation method of the glass fiber reinforced PA56/PP alloy material as claimed in any one of claims 1 to 7, characterized by comprising the following steps:
s1, preparing raw materials: preparing the components in parts by weight.
S2, blending and extruding: the PA56, the PP, the compatilizer, the antioxidant, the lubricant and the glass fiber are mixed in proportion, then the mixture is added into a double-screw extruder, and the mixture is extruded, cooled, drawn and granulated to finally obtain the glass fiber reinforced PA56/PP alloy material.
9. The preparation method of the glass fiber reinforced PA56/PP alloy material according to claim 8, wherein the preparation method comprises the following steps: in the step S2, the temperature of the twin-screw extruder is totally 9 zones, the process temperature of the eight zones is 265 ℃, 260 ℃, 255 ℃, 245 ℃, 235 ℃, 230 ℃, 225 ℃ and 230 ℃, and the rotating speed of the main machine is controlled at 400 r/min.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112391050A (en) * | 2020-12-22 | 2021-02-23 | 华东理工大学 | Low-water-absorption PA56/PBT composite material and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03243657A (en) * | 1990-02-20 | 1991-10-30 | Japan Synthetic Rubber Co Ltd | Resin composition for bearing |
| CN102146184A (en) * | 2011-04-22 | 2011-08-10 | 威海联桥新材料科技股份有限公司 | High-gloss fatigue-resistance glass fiber reinforced PP (propene polymer) /PPR (pentatricopeptide repeats) /PA (polyamide) alloy material and production method thereof |
| US20160130439A1 (en) * | 2014-11-11 | 2016-05-12 | Ems-Patent Ag | Polyamide moulding compound, moulded article produced herefrom and also purposes of use |
| CN107200928A (en) * | 2017-07-24 | 2017-09-26 | 江苏莘翔机电有限公司 | A kind of glass fiber reinforced polypropylene nylon composite materials and preparation method thereof |
| CN110373021A (en) * | 2019-07-26 | 2019-10-25 | 东莞市众一新材料科技有限公司 | A kind of modified PA56 composite material and preparation method |
-
2020
- 2020-04-07 CN CN202010266550.3A patent/CN111454571A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03243657A (en) * | 1990-02-20 | 1991-10-30 | Japan Synthetic Rubber Co Ltd | Resin composition for bearing |
| CN102146184A (en) * | 2011-04-22 | 2011-08-10 | 威海联桥新材料科技股份有限公司 | High-gloss fatigue-resistance glass fiber reinforced PP (propene polymer) /PPR (pentatricopeptide repeats) /PA (polyamide) alloy material and production method thereof |
| US20160130439A1 (en) * | 2014-11-11 | 2016-05-12 | Ems-Patent Ag | Polyamide moulding compound, moulded article produced herefrom and also purposes of use |
| CN107200928A (en) * | 2017-07-24 | 2017-09-26 | 江苏莘翔机电有限公司 | A kind of glass fiber reinforced polypropylene nylon composite materials and preparation method thereof |
| CN110373021A (en) * | 2019-07-26 | 2019-10-25 | 东莞市众一新材料科技有限公司 | A kind of modified PA56 composite material and preparation method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112391050A (en) * | 2020-12-22 | 2021-02-23 | 华东理工大学 | Low-water-absorption PA56/PBT composite material and preparation method thereof |
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