CN114479281A - Low-molding-shrinkage shading PP material and preparation method thereof - Google Patents
Low-molding-shrinkage shading PP material and preparation method thereof Download PDFInfo
- Publication number
- CN114479281A CN114479281A CN202210254414.1A CN202210254414A CN114479281A CN 114479281 A CN114479281 A CN 114479281A CN 202210254414 A CN202210254414 A CN 202210254414A CN 114479281 A CN114479281 A CN 114479281A
- Authority
- CN
- China
- Prior art keywords
- shrinkage
- low
- shading
- molding
- preparation
- 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
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
Abstract
The invention relates to the field of plastic materials, in particular to a low-molding shrinkage shading PP material and a preparation method thereof, and the shading material provided by the invention effectively improves the toughness of the material by reasonably compounding PP, POE, a PP compatilizer, nano sericite, a silane coupling agent, an antioxidant, a weather resisting agent, ethylene bis stearamide and montan wax, so that the material has lower shrinkage and stronger physical property, effectively solves the light transmission problem and the shrinkage problem of the material, and achieves the effects of low shrinkage and complete light impermeability; the preparation method provided by the invention has the advantages that the process flow is simple, the preparation is easy, in the preparation process, the interface of the plastic material and the nano sericite is tighter by grinding PP K7227 powder and coating the mica by a liquid silane coupling agent, and the problem of interface compatibility is solved, so that the material has lower shrinkage rate and stronger physical property, the prepared material has low shrinkage rate and good shading effect, and the application requirement can be better met.
Description
Technical Field
The invention relates to a plastic material, in particular to a low-molding-shrinkage shading PP material and a preparation method thereof.
Background
Polypropylene, PP for short, is a thermoplastic resin obtained by polymerizing propylene, has the characteristics of strong corrosion resistance at normal temperature, easy molding, light weight, weak electrical conductivity, high thermal stability and the like as a general plastic, is a material of food safety level specified by the state, has low price, and is widely applied to the aspects of food, medical instruments, automobiles, chemical containers and the like.
The PP material is very suitable for being used in components of lighting products, but the PP material has certain light transmittance and cannot meet the shading requirement, shading PC materials are still used in most current lighting markets, although some PP materials are also used, the PP shrinkage rate and the PC difference are large, a new mold needs to be developed, meanwhile, due to the shading requirement, pure PP cannot meet the shading requirement, a large amount of expensive shading powder needs to be added into PP, the cost is greatly increased, and the application of the PP material is limited.
How to meet the requirement of shading of the PP material while solving the problem of large shrinkage of the PP material is a technical problem which needs to be solved urgently.
Disclosure of Invention
In order to solve the above problems, the present invention provides a low molding shrinkage rate light-shielding PP material and a preparation method thereof, so as to solve the above technical problems.
The technical scheme adopted by the invention is as follows:
a low-molding shrinkage shading PP material comprises the following components in percentage by mass:
further, the low-molding shrinkage shading PP material comprises the following components in percentage by mass:
further, the PP compatilizer is PC-1C and/or KT-1C.
Further, the nano sericite is PM-1 and/or GM-3.
Further, the silane coupling agent is FD-792 and/or FD-560.
Further, the antioxidant is 1010 and/or 168.
Further, the weather resistant agent is UV533 and/or UV 586.
Further, the ethylene bis stearamide is P-130.
Further, the montan wax is an OP wax.
The preparation method of the shading PP material with the low molding shrinkage comprises the following preparation steps:
s1: grinding PP K7227 into powder;
s2: diluting a liquid silane coupling agent by using absolute ethyl alcohol according to a mass ratio of 0.5%, mixing the nano sericite in an ethanol diluent of the silane coupling agent according to a mass ratio of 1:1, fully stirring to form a stirring liquid, evaporating and removing ethanol in the stirring liquid, fully drying to obtain a block product of the nano sericite, and finally grinding the block product and screening the ground block product by using a screen to form modified nano sericite powder;
s3: uniformly mixing the treated PP K7227 powder, the modified nano sericite powder and the rest material components in a high-speed mixer for 5 minutes to obtain a mixture, and then carrying out melt extrusion on the mixture in a double-screw extruder at the temperature of 200-220 ℃ to obtain the light-shielding material.
The invention has the following beneficial effects:
1. the application provides a shading PP material, through the reasonable complex of each component, the interface compatibility problem has been solved, thereby make the shrinkage factor of material lower, physical properties is stronger, and through nanometer sericite's lamellar structure, printing opacity problem and material shrink problem can be effectively solved, reach low shrink and completely opaque effect, specifically, through POE 8613's addition, the toughness problem of material has effectively been improved, through the PP compatilizer, the silane coupling agent, ethylene bis stearamide and the addition of montan wax, the interface bonding effect has effectively been improved, and wherein the rational use of antioxidant and weatherability agent, make the ageing resistance of material greatly improve, the durability thereof has been increased.
2. The preparation method provided by the application has the advantages that the process flow is simple, the preparation is easy, in the preparation process, the interface of the plastic material and the nano sericite is tighter by grinding PP K7227 powder and coating mica by using a liquid silane coupling agent, and the problem of interface compatibility is solved, so that the material has lower shrinkage rate and stronger physical property, the prepared material has low shrinkage rate and good shading effect, and the application requirement can be better met.
Drawings
FIG. 1 is a flow chart of the preparation in examples 1 to 5 of the present invention.
Detailed Description
In order that the invention may be more readily understood, reference will now be made to the following more particular description of the invention, examples of which are set forth below. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. These embodiments are provided so that this disclosure will be thorough and complete. The various starting materials used in the examples are, unless otherwise indicated, conventional commercial products.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The numerical values set forth in the examples of the present invention are approximations, not necessarily values. All values within the error range may be included without limiting to the specific values disclosed in the embodiments of the present invention, where the error or experimental conditions allow.
The numerical ranges disclosed in the examples of the present invention are intended to indicate the relative amounts of the components in the mixture and the ranges of temperatures or other parameters recited in the other method examples.
Example 1:
the low-molding shrinkage shading PP material in the embodiment comprises the following components in percentage by mass:
example 2:
the low-molding shrinkage shading PP material in the embodiment comprises the following components in percentage by mass:
example 3:
the low-molding shrinkage shading PP material in the embodiment comprises the following components in percentage by mass:
example 4:
the low-molding shrinkage shading PP material in the embodiment comprises the following components in percentage by mass:
example 5:
the low-molding shrinkage shading PP material in the embodiment comprises the following components in percentage by mass:
the light-screening materials of the above examples 1 to 5 were prepared as follows:
s1: grinding PP K7227 into powder;
s2: diluting a liquid silane coupling agent by using absolute ethyl alcohol according to a mass ratio of 0.5%, mixing the nano sericite in an ethanol diluent of the silane coupling agent according to a mass ratio of 1:1, fully stirring to form a stirring liquid, evaporating and removing ethanol in the stirring liquid, fully drying to obtain a block product of the nano sericite, and finally grinding the block product and screening the ground block product by using a screen to form modified nano sericite powder;
s3: uniformly mixing the treated PP K7227 powder, the modified nano sericite powder and the rest material components in a high-speed mixer for 5 minutes to obtain a mixture, and then carrying out melt extrusion on the mixture in a double-screw extruder at the temperature of 200-220 ℃ to obtain the light-shielding material.
The light-screening materials prepared in examples 1 to 5 were prepared into test specimens, and light-screening test was conducted according to GB/T2410 to 2008, respectively; the molding shrinkage test was performed according to ISO 2577; according to the specification of GBT3682.1-2018, carrying out a melt index test under the conditions of a temperature of 230 ℃ and a load of 2.16 KG; and (3) carrying out tensile strength test according to GB/T1040.2-2006, wherein the test speed is as follows: 50mm/min in Mpa; carrying out an impact strength test according to GB/T1843-2008, wherein the pendulum energy is 2.75J; carrying out elongation at break test according to GB/T1040.2-2006, wherein the test speed is as follows: 50 mm/min; performing a bending strength test according to GBT 9341-; the flexural modulus test was carried out according to GBT 9341-. The test results are shown in the following table:
as can be seen from the above table, the light-shielding material provided by the present invention has a low molding shrinkage and a complete light-shielding effect, and can better satisfy application requirements, specifically, in the light-shielding material provided by the present application, the problem of interfacial compatibility is solved by reasonably compounding each component, so that the shrinkage of the material is lower, the physical properties are stronger, and the problems of light transmission and material shrinkage can be effectively solved by the sheet structure of the nano sericite, so as to achieve the effects of low shrinkage and complete light impermeability, specifically, the toughness of the material is effectively improved by adding POE 8613, the interface bonding effect is effectively improved by adding PP compatilizer, silane coupling agent, ethylene bis stearamide, and montan, and the durability of the material is greatly improved by reasonably using antioxidant and weather resistant agent.
The preparation method provided by the application has the advantages that the process flow is simple, the preparation is easy, in the preparation process, the interface of the plastic material and the nano sericite is tighter by grinding PP K7227 powder and coating mica by using a liquid silane coupling agent, and the problem of interface compatibility is solved, so that the material has lower shrinkage rate and stronger physical property, the prepared material has low shrinkage rate and good shading effect, and the application requirement can be better met.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. The shading PP material with the low molding shrinkage is characterized by comprising the following components in percentage by mass:
2. the shading PP material with low molding shrinkage as claimed in claim 1, is characterized by comprising the following components in percentage by mass:
3. the shading PP material with low molding shrinkage of claim 1, wherein the PP compatilizer is PC-1C and/or KT-1C.
4. The low-molding-shrinkage shading PP material of claim 1, wherein the nano sericite is PM-1 and/or GM-3.
5. The low-molding shrinkage opaque PP material of claim 1, wherein the silane coupling agent is FD-792 and/or FD-560.
6. The low-molding-shrinkage shading PP material as claimed in claim 1, wherein the antioxidant is 1010 and/or 168.
7. The low-molding-shrinkage opaque PP material of claim 1, wherein the weather resistant agent is UV533 and/or UV 586.
8. The low-molding-shrinkage shading PP material as claimed in claim 1, wherein the ethylene bis stearamide is P-130.
9. The low molding shrinkage opaque PP material of claim 1, wherein the montan wax is OP wax.
10. The preparation method of the low-molding-shrinkage shading PP material as claimed in any one of claims 1 to 9, wherein the preparation method comprises the following steps:
s1: grinding PP K7227 into powder;
s2: diluting a liquid silane coupling agent by using absolute ethyl alcohol according to a mass ratio of 0.5%, mixing the nano sericite in an ethanol diluent of the silane coupling agent according to a mass ratio of 1:1, fully stirring to form a stirring liquid, evaporating and removing ethanol in the stirring liquid, fully drying to obtain a block product of the nano sericite, and finally grinding the block product and screening the ground block product by using a screen to form modified nano sericite powder;
s3: uniformly mixing the treated PP K7227 powder, the modified nano sericite powder and the rest material components in a high-speed mixer for 5 minutes to obtain a mixture, and then performing melt extrusion on the mixture in a double-screw extruder at the temperature of 200-220 ℃ to obtain the light-shielding material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210254414.1A CN114479281A (en) | 2022-03-15 | 2022-03-15 | Low-molding-shrinkage shading PP material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210254414.1A CN114479281A (en) | 2022-03-15 | 2022-03-15 | Low-molding-shrinkage shading PP material and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114479281A true CN114479281A (en) | 2022-05-13 |
Family
ID=81485559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210254414.1A Pending CN114479281A (en) | 2022-03-15 | 2022-03-15 | Low-molding-shrinkage shading PP material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114479281A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102532687A (en) * | 2010-12-21 | 2012-07-04 | 上海日之升新技术发展有限公司 | Composite material with low shrinkage rate and preparation method thereof |
| CN106987056A (en) * | 2017-04-25 | 2017-07-28 | 广东圆融新材料有限公司 | A kind of modified polypropene with heat-reflective and preparation method thereof |
| CN107759898A (en) * | 2016-08-18 | 2018-03-06 | 江苏金发科技新材料有限公司 | High obscurity PP composite material and preparation method thereof |
| CN107793634A (en) * | 2016-08-29 | 2018-03-13 | 合肥杰事杰新材料股份有限公司 | A kind of light PP alloys with high shading performance and preparation method thereof |
| CN113603974A (en) * | 2021-06-28 | 2021-11-05 | 广东永强奥林宝国际消防汽车有限公司 | Environment-friendly reinforced corrosion-resistant material for decontamination chamber and preparation method thereof |
-
2022
- 2022-03-15 CN CN202210254414.1A patent/CN114479281A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102532687A (en) * | 2010-12-21 | 2012-07-04 | 上海日之升新技术发展有限公司 | Composite material with low shrinkage rate and preparation method thereof |
| CN107759898A (en) * | 2016-08-18 | 2018-03-06 | 江苏金发科技新材料有限公司 | High obscurity PP composite material and preparation method thereof |
| CN107793634A (en) * | 2016-08-29 | 2018-03-13 | 合肥杰事杰新材料股份有限公司 | A kind of light PP alloys with high shading performance and preparation method thereof |
| CN106987056A (en) * | 2017-04-25 | 2017-07-28 | 广东圆融新材料有限公司 | A kind of modified polypropene with heat-reflective and preparation method thereof |
| CN113603974A (en) * | 2021-06-28 | 2021-11-05 | 广东永强奥林宝国际消防汽车有限公司 | Environment-friendly reinforced corrosion-resistant material for decontamination chamber and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 姚其海等: "塑料改性技术及其应用研究", 北京理工大学出版社 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107629314B (en) | Polypropylene composition and preparation method thereof | |
| CN106893273B (en) | A kind of calcium carbonate height filling biodegradable plastic film material and preparation method thereof as shopping bag | |
| CN105820522B (en) | A kind of calcium sulfate crystal whiskers activeness and quietness lactic acid composite material and preparation method thereof | |
| CN107903498B (en) | Halogen flame-retardant polypropylene material and preparation method and application thereof | |
| EP2351784B1 (en) | Master batch for coloring synthetic resin | |
| CN113444269A (en) | Low-warpage good-appearance glass fiber reinforced polypropylene composite material and preparation method thereof | |
| CN108976745A (en) | Scratch resistance high transparency polycarbonate composite material and preparation method | |
| CN110128805A (en) | A kind of polylactic acid Masterbatch and preparation method thereof | |
| CN110698809A (en) | Anti-aging and anti-impact composite material and preparation method thereof | |
| CN101759910A (en) | Extruding blow-molding level glass fiber reinforced polypropylene composite material and preparation method thereof | |
| CN106832851B (en) | The excellent PC/ABS composition and preparation method thereof of spray painting property | |
| CN110172211A (en) | A kind of coloured filled polypropylene material of heat oxygen aging resistance and preparation method thereof | |
| CN109705446A (en) | A kind of modified polyolefin mother material and its preparation method and application | |
| CN114479281A (en) | Low-molding-shrinkage shading PP material and preparation method thereof | |
| CN106380812A (en) | Flame-retardant master batch for transparent PC (polycarbonate) materials, and preparation method and application thereof | |
| CN109721998B (en) | Infrared-transmitting high-rigidity polycarbonate composition and preparation method thereof | |
| CN111269581A (en) | Thermoplastic elastomer material and preparation method thereof | |
| CN114085451B (en) | Polypropylene composition and preparation method and application thereof | |
| CN110452515A (en) | A kind of modified plastics and its preparation process | |
| CN106947118B (en) | A kind of biodegradable thermoplastic's material and its processing method and application | |
| CN109777096A (en) | A kind of polyamide compoiste material and preparation method thereof | |
| CN109810421A (en) | Semi-transparent display HIPS resin of one kind and preparation method thereof | |
| CN112111137A (en) | Spraying-free material and preparation method and application thereof | |
| CN106995600A (en) | A kind of high reflection low light transmission makrolon material and preparation method thereof | |
| CN113087988A (en) | Vinyl tri (2, 2, 2-trifluoro) ethoxysilane modified wood-plastic composite 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 |