CN117700970A - High-rigidity PC alloy material and preparation method and application thereof - Google Patents
High-rigidity PC alloy material and preparation method and application thereof Download PDFInfo
- Publication number
- CN117700970A CN117700970A CN202311530221.5A CN202311530221A CN117700970A CN 117700970 A CN117700970 A CN 117700970A CN 202311530221 A CN202311530221 A CN 202311530221A CN 117700970 A CN117700970 A CN 117700970A
- Authority
- CN
- China
- Prior art keywords
- alloy material
- rigidity
- chopped carbon
- preparation
- parts
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000956 alloy Substances 0.000 title claims abstract description 35
- 238000002360 preparation method Methods 0.000 title abstract description 20
- 239000000463 material Substances 0.000 claims abstract description 28
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 18
- 239000004917 carbon fiber Substances 0.000 claims abstract description 18
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 15
- 239000010959 steel Substances 0.000 claims abstract description 15
- 239000004677 Nylon Substances 0.000 claims abstract description 13
- 229920001778 nylon Polymers 0.000 claims abstract description 13
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 8
- 238000002156 mixing Methods 0.000 claims abstract description 8
- 229920005989 resin Polymers 0.000 claims abstract description 8
- 239000011347 resin Substances 0.000 claims abstract description 8
- 238000002844 melting Methods 0.000 claims description 5
- 230000008018 melting Effects 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 4
- 239000003963 antioxidant agent Substances 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 claims description 3
- 239000000314 lubricant Substances 0.000 claims description 3
- 239000006096 absorbing agent Substances 0.000 claims description 2
- 230000009477 glass transition Effects 0.000 claims description 2
- 238000005469 granulation Methods 0.000 claims description 2
- 230000003179 granulation Effects 0.000 claims description 2
- 229920006111 poly(hexamethylene terephthalamide) Polymers 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 1
- 239000004033 plastic Substances 0.000 abstract description 14
- 230000003014 reinforcing effect Effects 0.000 abstract description 8
- 238000003756 stirring Methods 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 10
- 239000002994 raw material Substances 0.000 description 7
- 238000006467 substitution reaction Methods 0.000 description 6
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000013585 weight reducing agent Substances 0.000 description 2
- 230000003078 antioxidant effect Effects 0.000 description 1
- AGXUVMPSUKZYDT-UHFFFAOYSA-L barium(2+);octadecanoate Chemical compound [Ba+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O AGXUVMPSUKZYDT-UHFFFAOYSA-L 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000012847 fine chemical Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 1
Abstract
The invention relates to a high-rigidity PC alloy material, a preparation method and application thereof, wherein the PC alloy material comprises the following components in parts by weight: 40-80 parts of PC resin, 10-20 parts of high-temperature nylon, 10-40 parts of chopped carbon fiber, 2-6 parts of compatilizer and 0.1-1 part of other auxiliary agents. The preparation method comprises the steps of uniformly stirring all the components in a mixing barrel, and adding the components into a double screw rod through a main feeding port; adding the chopped carbon fibers into an extruder through a side feeding port, and extruding and granulating through the extruder to obtain the high-rigidity PC alloy material. Compared with the prior art, the invention can greatly improve the flexural modulus of the material and the reinforcing effect of the chopped carbon fiber, thereby improving the rigidity of the material and playing a role of replacing steel with plastic.
Description
Technical Field
The invention relates to the technical field of polymer blending and polymer forming processing, in particular to a high-rigidity PC alloy material and a preparation method and application thereof.
Background
PC material has excellent impact resistance, convenient injection molding and wide application. But the PC material cannot play a supporting role due to the lower flexural modulus. When applied to structural members, reinforcement modification is often required. The conventional reinforcing modification comprises glass fiber reinforcement, carbon fiber reinforcement and the like, but the material has poor reinforcing effect because of low modulus, cannot take the role of replacing steel with plastic, and limits the application range.
Disclosure of Invention
The invention aims to provide a high-rigidity PC alloy material, a preparation method and application thereof, which can be applied to plastic substitution steel.
The aim of the invention can be achieved by the following technical scheme: the high-rigidity PC alloy material comprises the following components in parts by weight:
preferably, the PC resin has a relative molecular weight of 15000-30000 and a glass transition temperature of 140-150 ℃.
Preferably, the high temperature nylon is a poly (hexamethylene terephthalamide) copolymer (PA 6T-66).
Preferably, the high temperature nylon has a melting point of 295-310 ℃.
Preferably, the chopped carbon fibers have a length of 4-12mm and a bulk density of 400-600g/L.
Preferably, the compatibilizer is POE-GMA.
Further preferably, the GMA content of the compatibilizing agent is 0.5 to 1wt%.
Preferably, the other auxiliary agents comprise one or more of lubricants, antioxidants and ultraviolet absorbers.
The preparation method of the high-rigidity PC alloy material comprises the following steps:
(a) Preparing materials according to a formula, premixing PC resin, high-temperature nylon, a compatilizer and other auxiliary agents, and uniformly mixing for later use;
(b) Adding the mixture obtained in the step (a) into an extruder through a main feeding port of a double-screw extruder;
(c) And adding the chopped carbon fibers into a double-screw extruder through a side feeding port, and carrying out blending melting, extrusion granulation to obtain the high-rigidity PC alloy material.
Preferably, the barrel temperature of the twin-screw extruder is 260-320 ℃, the screw rotation speed is 200-600rpm, and the pressure is 1.5-2.5MPa.
The application of the high-rigidity PC alloy material is characterized in that the high-rigidity PC alloy material is used for plastic steel and automobile lightweight products.
Compared with the prior art, the invention has the following beneficial effects
1. In the prior art, the rigidity of the chopped carbon fiber is much higher than that of the PC material, the modulus of the chopped carbon fiber and the PC material are too large, and the PC material is reinforced by the chopped carbon fiber material, so that the reinforcing effect is poor. In the PC alloy material, the high-rigidity high-temperature nylon material is introduced, so that the bending modulus of the base material is improved, the bending modulus of the material can be greatly improved, the reinforcing effect of the chopped carbon fiber is improved, the rigidity of the material is improved, and the effect of replacing steel with plastic is achieved.
2. The addition of the compatibilizer POE-MAH improves the compatibility of PC and high-temperature nylon, improves the overall impact resistance of the material, and obtains the PC alloy material of high-rigidity plastic substituted steel.
3. The PC alloy material has high flexural modulus, can be applied to products such as plastic steel substitution, automobile weight reduction and the like, and has wide application prospect.
Detailed Description
The following examples of the present invention are described in detail, and are given by way of illustration of the present invention, but the scope of the present invention is not limited to the following examples.
The following examples and comparative examples were prepared from the following raw materials: the PC resin is L-1250Y prepared by Asahi Kabushiki Kaisha; SH1240 is adopted for high-temperature nylon (PA 6T-66) resin, the melting point is 310 ℃, and Zhejiang Xinli is adopted; chopped carbon fibers with the length of 6mm and the bulk density of 450g/L are manufactured by Wighai optical composite materials Co., ltd; the compatibilizer POE-GMA (the content of the GMA is 0.8 weight percent) is produced in daily fine chemical industry; the other auxiliary agents comprise an antioxidant B900 (steam refining), an ultraviolet absorber Tinuvins UVP (Ciba) and a lubricant barium stearate, and the weight ratio of the auxiliary agents is 1:1:1.
The PC materials prepared in examples 1 to 4 and comparative examples 1 to 3 were dried at 100℃for 5 hours, and then tested for physical properties according to ASTM standards, and specific test standards and conditions are shown in Table 1.
TABLE 1
Example 1
The embodiment provides a high-rigidity plastic substitution steel PC alloy material and a preparation method thereof, and the specific steps are as follows:
(1) Preparing materials according to a formula, premixing PC resin, high-temperature nylon, a compatilizer and an auxiliary agent in a mixing barrel, and uniformly mixing for later use;
(2) Adding the mixture obtained in the step (1) into an extruder through a main feeding port of a double-screw extruder;
(3) Adding chopped carbon fibers into a double-screw extruder through a side feeding port;
feeding the mixture from a main feed of a double-screw extruder, and obtaining a sample through melt extrusion, cooling, drying and granulating; wherein, the twin-screw extruder is a twin-screw extruder rotating in the same direction, and the length-diameter ratio of the screw is 40:1, a screw machine barrel is provided with a vacuum pumping device and a temperature control device; the temperature of the feeding section of the twin-screw extruder was 260 ℃, the temperature of the plasticizing section was 280 ℃, the temperature of the homogenizing section was 320 ℃, the screw rotation speed was 400rpm, and the pressure was 2.5MPa.
Example 2
The example provides a high-rigidity plastic substitution steel PC alloy material and a preparation method thereof, wherein the weight ratio of raw materials is shown in Table 2, and the preparation method is the same as that of example 1.
Example 3
The example provides a high-rigidity plastic substitution steel PC alloy material and a preparation method thereof, wherein the weight ratio of raw materials is shown in Table 2, and the preparation method is the same as that of example 1.
Example 4
The example provides a high-rigidity plastic substitution steel PC alloy material and a preparation method thereof, wherein the weight ratio of raw materials is shown in Table 2, and the preparation method is the same as that of example 1.
Comparative example 1
The comparative example provides a PC alloy material and a preparation method thereof, wherein the weight ratio of raw materials is shown in Table 2, and the preparation method is the same as that of example 1.
Comparative example 2
The comparative example provides a PC alloy material and a preparation method thereof, wherein the weight ratio of raw materials is shown in Table 2, and the preparation method is the same as that of example 1.
Comparative example 3
The comparative example provides a PC alloy material and a preparation method thereof, wherein the weight ratio of raw materials is shown in Table 2, and the preparation method is the same as that of example 1.
TABLE 2
The physical properties of the PC alloy materials of examples 1 to 4 and comparative examples 1 to 3 were measured as shown in Table 3 below.
TABLE 3 Table 3
The test results of examples 1-4 and comparative examples 1-3 in Table 3 show that the rigidity of the chopped carbon fiber is much higher than that of the PC material in the prior art, the modulus of the chopped carbon fiber and the PC material are too large, and the reinforcing effect is poor by reinforcing the PC material by using the chopped carbon fiber material. By introducing the high-rigidity high-temperature nylon material, the flexural modulus of the base material is improved, the flexural modulus of the material can be greatly improved, and the reinforcing effect of the chopped carbon fiber is improved, so that the rigidity of the material is improved, and the effect of replacing steel with plastic is achieved. And the addition of the compatilizer POE-MAH improves the compatibility of PC and high-temperature nylon, improves the overall impact resistance of the material, and obtains the PC alloy material of high-rigidity plastic substituted steel. The material has high flexural modulus, can be applied to products such as plastic substituted steel, automobile weight reduction and the like, and has wide application prospect.
The previous description of the embodiments is provided to facilitate a person of ordinary skill in the art in order to make and use the present invention. It will be apparent to those skilled in the art that various modifications can be readily made to these embodiments and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above-described embodiments, and those skilled in the art, based on the present disclosure, should make improvements and modifications without departing from the scope of the present invention.
Claims (10)
1. The high-rigidity PC alloy material is characterized by comprising the following components in parts by weight:
2. the high rigidity PC alloy material according to claim 1, wherein the PC resin has a relative molecular weight of 15000 to 30000 and a glass transition temperature of 140 to 150 ℃.
3. The high rigidity PC alloy material of claim 1, wherein the high temperature nylon is a poly (hexamethylene terephthalamide) copolymer.
4. The high rigidity PC alloy material of claim 1 wherein the high temperature nylon has a melting point of 295-310 ℃.
5. The high rigidity PC alloy material according to claim 1, wherein the chopped carbon fiber has a length of 4-12mm and a bulk density of 400-600g/L.
6. The high rigidity PC alloy material of claim 1, wherein the compatibilizer is POE-GMA.
7. The high rigidity PC alloy material according to claim 6, wherein the GMA content of the compatibilizer is 0.5-1wt%.
8. The high rigidity PC alloy material of claim 1, wherein the other auxiliary agents comprise one or more of lubricants, antioxidants, uv absorbers.
9. A method for producing the high-rigidity PC alloy material according to any one of claims 1 to 8, comprising the steps of:
(a) Preparing materials according to a formula, premixing PC resin, high-temperature nylon, a compatilizer and other auxiliary agents, and uniformly mixing for later use;
(b) Adding the mixture obtained in the step (a) into an extruder through a main feeding port of a double-screw extruder;
(c) Adding the chopped carbon fibers into a double-screw extruder through a side feeding port, and carrying out blending melting, extrusion granulation to obtain the high-rigidity PC alloy material;
the barrel temperature of the double-screw extruder is 260-320 ℃, the screw rotating speed is 200-600rpm, and the pressure is 1.5-2.5MPa.
10. Use of the high-rigidity PC alloy material according to any one of claims 1 to 8 for plastic-substituted steel, automobile lightweight products.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311530221.5A CN117700970A (en) | 2023-11-16 | 2023-11-16 | High-rigidity PC alloy material and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311530221.5A CN117700970A (en) | 2023-11-16 | 2023-11-16 | High-rigidity PC alloy material and preparation method and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117700970A true CN117700970A (en) | 2024-03-15 |
Family
ID=90159632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311530221.5A Pending CN117700970A (en) | 2023-11-16 | 2023-11-16 | High-rigidity PC alloy material and preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117700970A (en) |
-
2023
- 2023-11-16 CN CN202311530221.5A patent/CN117700970A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111040440B (en) | Low-density high-wear-resistance nylon composite material and preparation method and application thereof | |
| CN105086452B (en) | A kind of halogen-free flameproof polyphenyl thioether composite material and preparation method thereof | |
| CN102002233B (en) | Mixture for preparing nylon nano composite material and preparation method of composite material | |
| CN111763383B (en) | Good-touch glass fiber reinforced polypropylene composite and preparation method thereof | |
| CN111944240A (en) | Polypropylene composite material and preparation method thereof | |
| CN111073273A (en) | Glass fiber reinforced PA6 composite material for improving floating fiber and high surface smoothness and preparation method thereof | |
| CN111138855A (en) | Modified nylon material for automobile bumper | |
| CN110655719A (en) | High-rigidity high-toughness low-density polypropylene composition and preparation method thereof | |
| CN110903640A (en) | High-fluidity high-impact-resistance nylon material and preparation method thereof | |
| CN113429779A (en) | Reinforced and toughened blending modified PA6/MXD6 composite material and preparation method thereof | |
| CN109943062A (en) | A kind of preparation method of high-strength temperature-resistant roving glass fiber nylon composite materials | |
| CN113429781A (en) | Long glass fiber reinforced bio-based polyamide 56, alloy and preparation method thereof | |
| CN115181416B (en) | Polyamide engineering plastic and preparation method and application thereof | |
| CN117700970A (en) | High-rigidity PC alloy material and preparation method and application thereof | |
| CN114395242B (en) | High-heat-conductivity POK composite material and preparation method and application thereof | |
| CN112724501B (en) | Toughened composite, PBT composite material and preparation method thereof | |
| CN112778634A (en) | Rigid-tough balance low-density polypropylene composite material and preparation method and application thereof | |
| CN113956653A (en) | Aramid fiber reinforced polyamide composite material and preparation method thereof | |
| CN112662073A (en) | Low-density, high-strength and high-toughness polypropylene composite material and preparation method thereof | |
| CN112063169A (en) | Bio-based PA56/ABS alloy and preparation method thereof | |
| CN111763422A (en) | Ultrahigh-fluidity toughened nylon 66 composition and preparation method thereof | |
| KR101795675B1 (en) | Polyamide based polymer compositions comprising cyclic compound and polyamide based composite material using the same | |
| CN115286919B (en) | Composite, preparation method and connecting piece | |
| CN115850971B (en) | High-modulus high-conductivity carbon fiber reinforced material and preparation method and application thereof | |
| CN111205635B (en) | High-water-resistance polyamide 6 composite material and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication |