CN112778684B - Talcum powder filled polypropylene material with high yield strain and low-temperature impact resistance and preparation method thereof - Google Patents
Talcum powder filled polypropylene material with high yield strain and low-temperature impact resistance and preparation method thereof Download PDFInfo
- Publication number
- CN112778684B CN112778684B CN202011567382.8A CN202011567382A CN112778684B CN 112778684 B CN112778684 B CN 112778684B CN 202011567382 A CN202011567382 A CN 202011567382A CN 112778684 B CN112778684 B CN 112778684B
- Authority
- CN
- China
- Prior art keywords
- parts
- temperature
- talcum powder
- polypropylene material
- filled polypropylene
- 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.)
- Active
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L53/00—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
-
- C—CHEMISTRY; METALLURGY
- 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
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/005—Additives being defined by their particle size in general
-
- C—CHEMISTRY; METALLURGY
- 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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/24—Crystallisation aids
- C08L2205/242—Beta spherulite nucleating agents
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/062—HDPE
Abstract
The invention provides a talcum powder filled polypropylene material with high yield strain and low temperature impact resistance, which is prepared from the following raw materials in parts by weight: 45-85 parts of polypropylene resin, 6-15 parts of polyethylene resin, 6-20 parts of polyolefin elastomer (POE), 3-25 parts of talcum powder, 0.5-2 parts of composite core master batch, 0.2-2 parts of stabilizer and 0.5-2 parts of toner. The composite nucleation master batch is a compound of nano calcium carbonate, polypropylene resin and beta-nucleating agent, and comprises 75-80 parts of nano calcium carbonate, 8-12 parts of polypropylene resin and 5-10 parts of beta-nucleating agent. The talcum powder filled polypropylene material with high yield strain and low temperature impact resistance has good ductility and yield resistance, yield elongation of more than 10 percent, excellent low temperature toughness and low temperature notch impact strength of more than 3.5KJ/m 2 。
Description
Technical Field
The invention relates to the technical field of modified plastics, in particular to a talcum powder filled polypropylene material with high yield strain and low-temperature impact resistance and a preparation method thereof.
Background
With the development of the automobile industry, the application proportion of plastics to automobile parts is increasing, and the "plastic replacing steel" has become a great trend in recent years. Polypropylene (PP) is widely favored by the automotive industry due to its advantages of low density, low price, good processability, and easily available raw materials, and is a variety of general-purpose plastics with the largest usage in automobiles. Because the toughness of the polypropylene resin at low temperature is poor, the product has poor low-temperature impact resistance and is easy to crack, and the use of the polypropylene resin in a low-temperature environment is greatly limited. The application range of the product can be greatly expanded by developing the low-temperature impact resistant modified polypropylene material.
In the stretching process of the polymer material, when the stress reaches a certain value, the stress does not increase significantly any more, and the phenomenon that the deformation amount rapidly increases is called yield. The strain that occurs when the stress exceeds the yield point of the material is called the yield strain, also known as the yield elongation. The elongation at yield of the modified polypropylene is an important indicator of the material, but is also an indicator which is often ignored. For some parts requiring higher toughness of the material (such as the upper body of the instrument panel), the yield elongation of the material has a significant influence on the application of the material. At present, the yield stress is deeply researched in the industry, but related inventions of high yield strain materials are rarely reported.
Disclosure of Invention
In view of the above, in order to overcome the defects in the prior art, the invention aims to provide a talcum powder filled polypropylene material with high yield strain and low temperature impact resistance, and a polyolefin elastomer (POE), high-density polyethylene and a composite nucleation master batch are added into a talcum powder filled polypropylene copolymer system, so that the toughening effect is achieved, and the crystal form and the crystallization degree of PP are improved, so that the material has good yield resistance and higher low temperature impact resistance.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
the talcum powder filled polypropylene material with high yield strain and low temperature impact resistance is prepared from the following raw materials in parts by weight:
45-85 parts of polypropylene resin,
6-15 parts of polyethylene resin,
6-20 parts of polyolefin elastomer (POE),
3-25 parts of talcum powder,
0.5 to 2 portions of compound nuclear master batch,
0.2 to 2 portions of stabilizing agent,
0.5-2 parts of toner;
the composite core-forming master batch is a compound of nano calcium carbonate, polypropylene resin and beta-nucleating agent, and comprises 75-80 parts of nano calcium carbonate, 8-12 parts of polypropylene resin and 5-10 parts of beta-nucleating agent.
Furthermore, the particle size of the nano calcium carbonate is between 30 and 100 nm.
Further, the polypropylene resin is a mixture of two ethylene block copolymerization polypropylenes, wherein the weight portion of the high impact polypropylene is 25-75%, and the normal temperature notch impact strength is more than 40KJ/m 2 The melt flow rate of the other polypropylene copolymer is 10-60g/10min at the temperature of 230 ℃ under the test conditions of 2.16kg weight, and the normal temperature notch impact strength is more than 5KJ/m 2 . The high-impact polypropylene can improve the impact resistance of the material, but the overall rigidity is reduced due to the excessively high addition amount, and the proportion range can ensure that the material has good rigidity and toughness balance.
Further, the polyethylene resin is high density polyethylene, and the melt flow rate of the polyethylene resin is 0.2-10g/10min under the test conditions of the temperature of 190 ℃ and the weight of 2.16 kg.
Further, the POE is ethylene-octene copolymer (POE with eight carbons), and the melt flow rate is 0.5-15g/10min under the test conditions of the temperature of 190 ℃ and the weight of 2.16 kg.
Furthermore, the talcum powder is a mixture of one or more than two of talcum powders with the particle size distribution of 1250-5000 meshes.
Further, the stabilizer comprises a hindered phenol antioxidant, a phosphite antioxidant and a hindered amine light stabilizer, and the mass ratio of the hindered phenol antioxidant to the phosphite antioxidant to the hindered amine light stabilizer is (0.5-2): (0.5-2): (0.5-1).
The invention also provides a preparation method of the talcum powder filled polypropylene material with high yield strain and low temperature impact resistance, which comprises the following steps:
(1) weighing 75-80 parts of nano calcium carbonate, 8-12 parts of polypropylene resin, 5-10 parts of beta-nucleating agent, 0.2-1 part of dispersing agent and 0.2-1 part of antioxidant, placing the components in a high-speed mixer for high-speed mixing for 3-5min, placing the mixed raw materials in a double-screw extruder for extrusion and granulation, and drying to obtain composite core master batches;
(2) weighing the polypropylene resin, the polyethylene resin, the polyolefin elastomer (POE) and the talcum powder according to the formula ratio, compounding into a core master batch, a stabilizer and a toner, mixing the core master batch, the stabilizer and the toner in a high-speed mixer for 1-3min at a high speed, and uniformly mixing to obtain a premix; and adding the premix into a main feeding port of a double-screw extruder, carrying out melt extrusion, granulating and drying to obtain the high-yield-strain low-temperature-impact-resistant talcum powder filled polypropylene material.
Further, in the step (1), the temperature of the feeding section of the twin-screw extruder is 120-.
Further, in the step (2), the melt extrusion conditions of the twin-screw extruder are as follows: the temperature of the first zone is 80-120 ℃, the temperature of the second zone is 190-; the length-diameter ratio of the double-screw extruder is 40: 1.
compared with the prior art, the talcum powder filled polypropylene material with high yield strain and low temperature impact resistance has the following advantages:
(1) the talcum powder filled polypropylene material with high yield strain and low temperature impact resistance provided by the invention takes high-impact polypropylene and common polypropylene copolymer composition in a proper proportion as resin matrixes, and firstly, the material is ensured to have good rigidity-toughness balance. And secondly, an ethylene-octene high polymer (octa-POE) is selected as a toughening agent instead of a commonly used ethylene-butene high polymer (tetra-POE), the molecular chain flexibility of the octa-POE is better than that of the tetra-POE, and the glass transition temperature (namely the brittle-tough transition temperature) of the material can be further reduced, so that the low-temperature toughening effect is more excellent. In addition, the introduction of the high-density polyethylene can also increase the compatibility of POE and a polypropylene resin matrix, so that the POE and the polypropylene resin matrix are distributed more uniformly, and a synergistic toughening effect is achieved.
(2) The composite nucleation master batch containing the beta-nucleating agent and the nano calcium carbonate is added into the high-yield-strain low-temperature-impact-resistant talcum powder filled polypropylene material, the polypropylene can be induced to crystallize in a beta crystal form by adding the nucleating agent, the size of formed spherulites is obviously reduced, and in addition, the overall crystallization rate and the crystallization degree of the material are also improved, so that more fine beta spherulites can be formed in the process of cooling the material from a molten state, the ductility and the yield resistance of the material are greatly improved, and the material is endowed with higher yield strain. The addition of the nano calcium carbonate can also play a dual role of filling reinforcement and heterogeneous nucleation, so that the mechanical property of the material is comprehensively improved.
(3) The invention can be applied to automobile parts such as blasting instrument panels, blasting columns and the like which have higher requirements on low-temperature toughness of materials and certain yield resistance requirements.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The test reagents used in the following examples, unless otherwise specified, are all conventional biochemical reagents; the experimental methods are conventional methods unless otherwise specified.
The present invention will be described in detail with reference to examples.
Description of the sources of the materials according to the invention:
raw material sources of examples 1-3 and comparative examples 1-5
1. Starting materials for examples 1 to 3
Polypropylene resin: ethylene block copolymer polypropylene, EP5075X for medium sand petrochemical production;
high impact polypropylene: adopting a Taiwan produced K9017;
polyethylene resin: injection molding high-density polyethylene and DMDA8008 produced by the catalysis of the Mount-mountain fruits;
POE: adopting POE with eight carbons, POE Engage 8842, produced by Dow company;
nano calcium carbonate: KPR-THX produced by Kaiens nano material company is adopted;
beta-nucleating agent: adopting a nucleating agent TMB-5;
talc powder: adopting 3000 meshes of talcum powder;
a stabilizer: the main antioxidant 1010, the auxiliary antioxidant 168 and the light stabilizer 3808PP5 (produced by Cyanite company) are mixed according to the mass ratio of 1:1: 1.
2. Raw materials of comparative examples
POE used in comparative example 2 was POE four carbon produced by Dow corporation, POE Engage7447, and the rest was the same as in examples 1 to 3.
Preparation of examples 1-3 and comparative examples 1-5
The proportions of the components of the polypropylene materials described in examples 1 to 3 and comparative examples 1 to 5 are shown in Table 1.
TABLE 1 formulation of Polypropylene materials described in examples 1-3 and comparative examples 1-5
Remarking: the components in the above table are used in parts by weight.
Examples 1 to 3
A preparation method of a talcum powder filled polypropylene material with high yield strain and low temperature impact resistance comprises the following steps:
(1) weighing 79 parts of nano calcium carbonate, 10 parts of polypropylene resin, 10 parts of beta-nucleating agent, 0.8 part of dispersing agent and 0.2 part of antioxidant, placing the components in a high-speed mixer for 3min, placing the mixture into a double-screw extruder for extrusion granulation, and drying to obtain the composite core master batch, wherein the temperature of a feeding section of the double-screw extruder is 120 ℃, the temperature of a conveying section of the double-screw extruder is 160 ℃, the temperature of a melting section of the double-screw extruder is 190 ℃, the temperature of a machine head of the double-screw extruder is 180 ℃, and the rotating speed of a screw is 150 revolutions per minute.
(2) Placing polypropylene resin, polyethylene resin, polyolefin elastomer (POE), talcum powder, composite core master batch, stabilizer and toner into a high-speed mixer according to the weight parts shown in Table 1, mixing for 3min at a high speed, adding the obtained uniformly mixed premix into a main feeding port of a double-screw extruder, carrying out melt extrusion, granulating and drying to obtain the high-yield-strain low-temperature-impact-resistant talcum powder filled polypropylene material.
The melt extrusion conditions of the twin-screw extruder are as follows: the temperature of the first zone is 120 ℃, the temperature of the second zone is 190 ℃, the temperature of the third zone is 210 ℃, the temperature of the fourth zone is 210 ℃, the temperature of the fifth zone is 210 ℃, the temperature of the sixth zone is 230 ℃, the temperature of the seventh zone is 230 ℃, the temperature of the eighth zone is 230 ℃, the temperature of the ninth zone is 230 ℃, and the rotating speed of the main engine is 350 revolutions per minute; the length-diameter ratio of the double-screw extruder is 40: 1.
comparative examples 1 to 5
Weighing 79 parts of nano calcium carbonate, 10 parts of polypropylene resin, 10 parts of beta-nucleating agent, 0.8 part of dispersing agent and 0.2 part of antioxidant, placing the components in a high-speed mixer for 3min, placing the mixture into a double-screw extruder for extrusion granulation, and drying to obtain the composite core master batch, wherein the temperature of a feeding section of the double-screw extruder is 120 ℃, the temperature of a conveying section of the double-screw extruder is 160 ℃, the temperature of a melting section of the double-screw extruder is 190 ℃, the temperature of a machine head of the double-screw extruder is 180 ℃, and the rotating speed of a screw is 150 revolutions per minute.
Polypropylene resin, polyethylene resin, polyolefin elastomer (POE), talcum powder, composite core master batch, nano calcium carbonate, beta-nucleating agent, stabilizer and toner are put into a high-speed mixer according to the weight parts shown in the table 1 to be mixed for 3min at a high speed, the obtained uniformly mixed premix is added into a main feeding port of a double-screw extruder to be subjected to melt extrusion, granulation and drying, and the polypropylene material is obtained.
The melt extrusion conditions of the twin-screw extruder are as follows: the temperature of the first zone is 120 ℃, the temperature of the second zone is 190 ℃, the temperature of the third zone is 210 ℃, the temperature of the fourth zone is 210 ℃, the temperature of the fifth zone is 210 ℃, the temperature of the sixth zone is 230 ℃, the temperature of the seventh zone is 230 ℃, the temperature of the eighth zone is 230 ℃, the temperature of the ninth zone is 230 ℃, and the rotating speed of a main engine is 350 r/min; the length-diameter ratio of the double-screw extruder is 40: 1.
third, Performance testing of the Polypropylene materials of examples 1-3 and comparative examples 1-5
1. Test method
(1) The yield properties were carried out to DIN EN ISO 527;
(2) flexural properties were carried out in accordance with DIN EN ISO 178;
(3) impact properties were carried out in accordance with DIN EN ISO 179.
2. Performance test results of the polypropylene materials of examples 1 to 3 and comparative examples 1 to 5
The polypropylene materials of examples 1-3 and comparative examples 1-5 were tested for their performance using the test methods described above and the results are shown in Table 2.
TABLE 2 Performance test results for the polypropylene materials of examples 1-3 and comparative examples 1-5
From a comparison of the properties of the individual examples and comparative examples in table 2, the following conclusions can be drawn:
(1) the yield strain (yield elongation) represents the anti-yield capacity of the material, the invention improves the crystallization degree of the whole system by adding part of high-density polyethylene in the talcum powder filled polypropylene system, which is beneficial to increasing the ductility and the anti-yield capacity of the material, and the comparison of example 1 and comparative example 1 shows that the yield elongation of the material is obviously improved by adding the high-density polyethylene, and the increase amplitude can reach 50%.
(2) The talcum powder filled polypropylene material with high yield strain and low-temperature impact resistance provided by the invention has good toughness, especially higher low-temperature toughness (the low-temperature notch impact strength is more than or equal to 3.5 KJ/m) 2 ). Comparing example 1 with comparative example 2, it is found that the addition of ethylene-octene high polymer (octacarbon POE) greatly improves the low temperature impact resistance of the material. Meanwhile, as can be seen from the example 1 and the comparative examples 3 and 4, the addition of the high-impact polypropylene in a proper proportion is beneficial to improving the low-temperature notch impact strength, can also ensure that the material has good rigidity-toughness balance, and avoids the serious intensity and rigidityAnd (4) attenuation.
(3) According to the high-yield-strain low-temperature-impact-resistant talcum powder filled polypropylene material provided by the invention, the composite nucleation master batch with the effective components of the beta-nucleating agent and the nano calcium carbonate is added in a system, the beta-nucleating agent can be used for improving the crystallization rate and inducing the polypropylene to form a plurality of beta spherulites, and more uniform fine beta spherulites are beneficial to improving the yield-strain resistance and ductility of the material; the addition of the nano calcium carbonate can also play the dual roles of filling reinforcement and heterogeneous nucleation, and the comprehensive mechanical property of the material is improved. In addition, when the components are added in the form of master batches, the agglomeration of the nano calcium carbonate can be effectively avoided, the uniformity of the active components after secondary dispersion in a matrix is better, and the mechanical properties of the active components are more excellent (example 1Vs comparative example 5).
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (9)
1. The talcum powder filled polypropylene material with high yield strain and low temperature impact resistance is characterized in that: the compound is prepared from the following raw materials in parts by weight:
45-85 parts of polypropylene resin,
6-15 parts of polyethylene resin,
6-20 parts of polyolefin elastomer (POE),
3-25 parts of talcum powder,
0.5 to 2 portions of compound nuclear master batch,
0.2 to 2 portions of stabilizing agent,
0.5-2 parts of toner;
the composite nuclear master batch is a compound of nano calcium carbonate, polypropylene resin and beta-nucleating agent, and comprises 75-80 parts of nano calcium carbonate, 8-12 parts of polypropylene resin and 5-10 parts of beta-nucleating agent;
the polypropylene resin is a mixture of two ethylene block copolymerization polypropylenes, wherein the weight ratio of the high impact polypropylene is 25-75%, and the normal temperature notch impact strength of the polypropylene resin is highAt 40KJ/m 2 The melt flow rate of the other polypropylene copolymer is 10-60g/10min at the temperature of 230 ℃ under the test condition of 2.16kg weight, and the normal temperature notch impact strength is more than 5KJ/m 2 ；
The polyethylene resin is high-density polyethylene;
the POE is an ethylene-octene copolymer.
2. The high yield strain low temperature impact resistant talc filled polypropylene material of claim 1, wherein: the particle size of the nano calcium carbonate is between 30 and 100 nm.
3. The high yield strain low temperature impact resistant talc filled polypropylene material of claim 1, wherein: the high density polyethylene melt flow rate is 0.2-10g/10min at the temperature of 190 ℃ under the test condition of a weight of 2.16 kg.
4. The high yield strain low temperature impact resistant talc filled polypropylene material of claim 1, wherein: the melt flow rate of the ethylene-octene high polymer is 0.5-15g/10min under the test conditions of the temperature of 190 ℃ and the weight of 2.16 kg.
5. The high yield strain low temperature impact resistant talc filled polypropylene material of claim 1, wherein: the talcum powder is one or a mixture of more than two of talcum powders with the particle size distribution of 1250-5000 meshes.
6. The high yield strain low temperature impact resistant talc filled polypropylene material of claim 1, wherein: the stabilizer comprises a hindered phenol antioxidant, a phosphite antioxidant and a hindered amine light stabilizer, and the mass ratio of the hindered phenol antioxidant to the phosphite antioxidant to the hindered amine light stabilizer is (0.5-2): (0.5-2): (0.5-1).
7. A process for preparing a high yield strain low temperature impact resistant talc filled polypropylene material according to any of claims 1 to 6, characterized in that: the method comprises the following steps:
(1) weighing 75-80 parts of nano calcium carbonate, 8-12 parts of polypropylene resin, 5-10 parts of beta-nucleating agent, 0.2-1 part of dispersing agent and 0.2-1 part of antioxidant, placing the components in a high-speed mixer for high-speed mixing for 3-5min, placing the mixed raw materials in a double-screw extruder for extrusion and granulation, and drying to obtain composite core master batches;
(2) weighing the polypropylene resin, the polyethylene resin, the ethylene-octene high polymer, the talcum powder, the composite core master batch, the stabilizer and the toner according to the formula ratio, mixing the core master batch, the stabilizer and the toner in a high-speed mixer for 1-3min at high speed, and uniformly mixing to obtain a premix; and adding the premix into a main feeding port of a double-screw extruder, carrying out melt extrusion, granulating and drying to obtain the high-yield-strain low-temperature-impact-resistant talcum powder filled polypropylene material.
8. The preparation method of the high-yield-strain low-temperature-impact-resistant talcum powder filled polypropylene material according to claim 7, which is characterized in that: in the step (1), the temperature of the feeding section of the double-screw extruder is 120 ℃ to 160 ℃, the temperature of the conveying section is 160 ℃ to 180 ℃, the temperature of the melting section is 190 ℃ to 210 ℃, the temperature of the head is 180 ℃ to 200 ℃, and the rotation speed of the screw is 100 ℃ to 200 revolutions per minute.
9. The preparation method of the high-yield-strain low-temperature-impact-resistant talcum powder filled polypropylene material according to claim 7, which is characterized in that: in the step (2), the melt extrusion conditions of the twin-screw extruder are as follows: the first zone temperature is 80-120 ℃, the second zone temperature is 190-; the length-diameter ratio of the double-screw extruder is 40: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011567382.8A CN112778684B (en) | 2020-12-25 | 2020-12-25 | Talcum powder filled polypropylene material with high yield strain and low-temperature impact resistance and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011567382.8A CN112778684B (en) | 2020-12-25 | 2020-12-25 | Talcum powder filled polypropylene material with high yield strain and low-temperature impact resistance and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112778684A CN112778684A (en) | 2021-05-11 |
| CN112778684B true CN112778684B (en) | 2022-08-09 |
Family
ID=75752606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011567382.8A Active CN112778684B (en) | 2020-12-25 | 2020-12-25 | Talcum powder filled polypropylene material with high yield strain and low-temperature impact resistance and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112778684B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114507399B (en) * | 2022-03-24 | 2023-08-08 | 成都金发科技新材料有限公司 | Polypropylene material and preparation method and application thereof |
| CN115403864B (en) * | 2022-09-30 | 2023-06-27 | 广州敬信高聚物科技有限公司 | Temperature-resistant PP material and application thereof in preparation of automobile high-frequency wires |
| CN115710397B (en) * | 2022-10-10 | 2023-09-19 | 江苏金发科技新材料有限公司 | Constant-temperature polypropylene material and preparation method and application thereof |
| CN115746453A (en) * | 2022-11-14 | 2023-03-07 | 广州市聚赛龙工程塑料股份有限公司 | Polypropylene composite material with low linear expansion coefficient and preparation method and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010022567A1 (en) * | 2008-08-29 | 2010-03-04 | 金发科技股份有限公司 | A low temperature impact resistance polypropylene resin composition, preparation method and use for automobile inner trim thereof |
| CN106633412A (en) * | 2015-11-02 | 2017-05-10 | 株洲时代新材料科技股份有限公司 | High-elongation-at-break polypropylene composition and preparation method thereof |
| CN109575450A (en) * | 2017-09-29 | 2019-04-05 | 合肥杰事杰新材料股份有限公司 | A kind of high-rigidity high-ductility PP composite material and preparation method thereof |
-
2020
- 2020-12-25 CN CN202011567382.8A patent/CN112778684B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010022567A1 (en) * | 2008-08-29 | 2010-03-04 | 金发科技股份有限公司 | A low temperature impact resistance polypropylene resin composition, preparation method and use for automobile inner trim thereof |
| CN106633412A (en) * | 2015-11-02 | 2017-05-10 | 株洲时代新材料科技股份有限公司 | High-elongation-at-break polypropylene composition and preparation method thereof |
| CN109575450A (en) * | 2017-09-29 | 2019-04-05 | 合肥杰事杰新材料股份有限公司 | A kind of high-rigidity high-ductility PP composite material and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112778684A (en) | 2021-05-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112778684B (en) | Talcum powder filled polypropylene material with high yield strain and low-temperature impact resistance and preparation method thereof | |
| CN103524878B (en) | A kind of modified polypropylene composite material and its production and use | |
| CN112029190B (en) | Micro-foaming polypropylene material and preparation method thereof | |
| CN115322479B (en) | Low-post-shrinkage polypropylene material and preparation method thereof | |
| CN112759845A (en) | Polypropylene composite material and preparation method and application thereof | |
| CN112552582A (en) | Anti-tiger stripe and high-heat-resistance automobile instrument board material and preparation method and application thereof | |
| CN113061303A (en) | Glass fiber reinforced polypropylene material and preparation method thereof | |
| CN113150450A (en) | Recyclable nano-cellulose reinforced polypropylene material and preparation method and application thereof | |
| CN112375324A (en) | HIPS (high impact polystyrene) composite material as well as preparation method and application thereof | |
| CN110655708A (en) | Low-density polypropylene composite material with excellent comprehensive performance and preparation method thereof | |
| CN111484679A (en) | High-rigidity, high-toughness and high-fluidity polypropylene composite material and preparation method thereof | |
| CN112759809A (en) | Polyethylene composite material for injection molding and preparation method thereof | |
| CN106398085A (en) | Scratching-resistant halogen-free flame-retardant TPE injection molding material and preparation method thereof | |
| CN108276684A (en) | A kind of nanometer composite polypropylene material and preparation method thereof for lightweight injection-moulded plastic part | |
| CN112662053A (en) | Low-density high-performance modified polypropylene composite material for vehicle bumper and preparation method thereof | |
| CN112480552A (en) | Polypropylene composite material and preparation method thereof | |
| CN108047572B (en) | Functional talcum powder master batch | |
| CN111484680A (en) | High-gloss and high-temperature-resistant polypropylene composite material and preparation method thereof | |
| CN108047573B (en) | Special material for PPR (polypropylene random) pipe and preparation method thereof | |
| CN101235183A (en) | Acrylonitrile-butadiene-styrene copolymer modified material used for safety helmet and preparation method thereof | |
| CN112457577B (en) | Polypropylene composite material and preparation method and application thereof | |
| CN102516755A (en) | Nylon-based high filling master batch and preparation method thereof | |
| CN112048114A (en) | Special material for automobile exterior decoration prepared from TPO skin reclaimed material and preparation method thereof | |
| CN115418055B (en) | High-fluidity polypropylene plastic and preparation method thereof | |
| CN110791007A (en) | Super-soft cold-resistant high-flame-retardant thermoplastic low-smoke halogen-free cable material and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |