CN111040304A - High-strength high-oxygen-resistance polypropylene bonding resin and preparation method thereof - Google Patents
High-strength high-oxygen-resistance polypropylene bonding resin and preparation method thereof Download PDFInfo
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- CN111040304A CN111040304A CN201911378276.2A CN201911378276A CN111040304A CN 111040304 A CN111040304 A CN 111040304A CN 201911378276 A CN201911378276 A CN 201911378276A CN 111040304 A CN111040304 A CN 111040304A
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- 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
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- 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
- C08K2201/004—Additives being defined by their length
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/10—Transparent films; Clear coatings; Transparent materials
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/14—Gas barrier composition
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Abstract
The invention relates to a high-strength high-oxygen-resistance polypropylene bonding resin and a preparation method thereof, wherein the polypropylene bonding resin comprises the following components in parts by weight: 65-82 parts of polypropylene, 10-18 parts of quartz fiber, 6-10 parts of mica powder, 12-20 parts of compatilizer and 1-10 parts of dioctadecyl ammonium salt, wherein the monofilament diameter of the quartz fiber is 6-12 mu m, the softening point is 550-630 ℃, and the density is 2.35-2.72g/cm3. The high-strength high-oxygen-resistance polypropylene bonding resin is prepared by compounding quartz fiber, mica powder, a polar compatilizer and dioctadecyl ammonium saltThe polypropylene material has high strength and high oxygen resistance, is used for reinforcing the polypropylene material, and solves the problems of poor transparency and poor oxygen resistance of the polypropylene material; in addition, the preparation method of the high-strength high-oxygen-resistance polypropylene bonding resin has the advantages of simple preparation process, easily obtained raw materials and equipment and capability of large-scale production.
Description
Technical Field
The invention relates to the technical field of polypropylene bonding resin manufacturing, in particular to high-strength high-oxygen-resistance polypropylene bonding resin and a preparation method thereof.
Background
The polymer type polypropylene material has lower heat distortion temperature (100 ℃), low transparency, low gloss and low rigidity, and the impact strength of the polymer type polypropylene material is increased along with the increase of the ethylene content, and the strength is reduced along with the increase of the ethylene content. The Vicat softening temperature of the polymer type polypropylene material is 150 ℃, and the Vicat softening temperature is higher, so that the material has better dimensional stability when being heated, the smaller the thermal deformation is, and the better the thermal deformation resistance is. In addition, the polymer type polypropylene material has high crystallinity, so that the material has strong surface rigidity and good scratch resistance. The polypropylene material is widely used in pharmaceutical industry, chemical industry, petroleum industry, chlor-alkali industry, pharmaceutical industry, environmental protection industry, light industry, printing and dyeing industry, food industry, metallurgy industry, water treatment industry and other industries.
In the process of preparing the container from polypropylene, since polypropylene has low strength, the polypropylene is reinforced with a polypropylene-based adhesive resin so as to improve the overall strength of the container, and the container for containing food or beverage has high requirements for oxygen barrier properties in order to prevent oxygen in the air from permeating into the container to deteriorate the food.
Therefore, how to prepare a high-strength high-oxygen-resistance polypropylene adhesive resin is a problem which needs to be urgently solved by research and development personnel.
Disclosure of Invention
The invention aims to provide a high-strength high-oxygen-resistance polypropylene bonding resin and a preparation method thereof, aiming at the defects of the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a high-strength high-oxygen-resistance polypropylene bonding resin, which comprises the following components in parts by weight:
wherein the filament diameter of the quartz fiber is 6-12 μm, the softening point is 550-630 ℃, and the density is 2.35-2.72g/cm3。
Further, the high-strength high-oxygen-resistance polypropylene bonding resin comprises the following components in parts by weight:
further, the length of the quartz fiber is 2-5 mm.
Further, the diameter-thickness ratio of the mica powder is more than 80, the specific gravity is 2.6-2.7, and the particle size is 400 meshes.
Further, the polar compatilizer is maleic anhydride grafted polypropylene.
Further preferably, the density of the maleic anhydride grafted polypropylene is 0.865-0.875g/cm3The grafting rate is 0.8-1.5%, and under the conditions of 190 ℃ and 2.16kg of pressure, the melt index is 45-50g/10min, the tensile strength is 25-28MPa, and the melting point is 135-140 ℃.
The second aspect of the invention provides a preparation method of a high-strength high-oxygen-resistance polypropylene bonding resin, which comprises the following steps:
(1) weighing polypropylene, quartz fiber, mica powder, a polar compatilizer and dioctadecyl ammonium salt according to the proportion, and then uniformly mixing the polypropylene, the quartz fiber, the mica powder, the polar compatilizer and the dioctadecyl ammonium salt;
(2) and adding the uniformly mixed raw materials into an extruder for extrusion granulation.
Further, the temperature of the mixing in the step (1) is 50-80 ℃.
Further, the extrusion temperature of the extrusion granulation in the step (2) is 180-.
Compared with the prior art, the invention has the following advantages:
the high-strength high-oxygen-resistance polypropylene bonding resin has high strength and high oxygen resistance under the compounding action of quartz fiber, mica powder, a polar compatilizer and dioctadecyl ammonium salt, is used for reinforcing a polypropylene material, and solves the problems of poor transparency and poor oxygen resistance of the polypropylene material; in addition, the preparation method of the high-strength high-oxygen-resistance polypropylene bonding resin has the advantages of simple preparation process, easily obtained raw materials and equipment and capability of large-scale production.
Detailed Description
The present invention will be described in detail and specifically with reference to the following examples to facilitate better understanding of the present invention, but the following examples do not limit the scope of the present invention.
Example 1
The high-strength high-oxygen-resistance polypropylene bonding resin comprises the following components in parts by weight:
the filament diameter of the quartz fiber is 6-12 μm, the softening point is 550-630 ℃, and the density is 2.35-2.72g/cm3The length is 2-5 mm;
the mica powder has a diameter-thickness ratio of more than 80, a specific gravity of 2.6-2.7 and a particle size of 400 meshes.
The polar compatilizer is maleic anhydride grafted polypropylene, and the density of the polar compatilizer is 0.865-0.875g/cm3The grafting rate is 0.8-1.5%, the melt index is 45-50g/10min (190 ℃, 2.16kg), the tensile strength is 25-28MPa, and the melting point is 135-140 ℃.
The preparation method of the polypropylene bonding resin with high strength and high oxygen resistance comprises the following steps:
(1) weighing polypropylene, quartz fiber, mica powder, a polar compatilizer and dioctadecyl ammonium salt according to the proportion, and then adding the polypropylene, the quartz fiber, the mica powder, the polar compatilizer and the dioctadecyl ammonium salt into a high-speed mixer to be uniformly mixed at the mixing temperature of 50-80 ℃;
(2) and adding the uniformly mixed raw materials into a double-screw extruder for extrusion granulation, wherein the extrusion temperature of the double-screw extruder is 180-plus-200 ℃, the rotation speed of a screw of the extruder is 300-plus-350 rpm, and finally drying to obtain the polypropylene composite material.
Example 2
The high-strength high-oxygen-resistance polypropylene bonding resin comprises the following components in parts by weight:
the filament diameter of the quartz fiber is 6-12 μm, the softening point is 550-630 ℃, and the density is 2.35-2.72g/cm3The length is 2-5 mm.
The mica powder has a diameter-thickness ratio of more than 80, a specific gravity of 2.6-2.7 and a particle size of 400 meshes.
The polar compatilizer is maleic anhydride grafted polypropylene, and the density of the polar compatilizer is 0.865-0.875g/cm3The grafting rate is 0.8-1.5%, the melt index is 45-50g/10min (190 ℃, 2.16kg), the tensile strength is 25-28MPa, and the melting point is 135-140 ℃.
The preparation method of the polypropylene bonding resin with high strength and high oxygen resistance comprises the following steps:
(1) weighing polypropylene, quartz fiber, mica powder, a polar compatilizer and dioctadecyl ammonium salt according to the proportion, and then adding the polypropylene, the quartz fiber, the mica powder, the polar compatilizer and the dioctadecyl ammonium salt into a high-speed mixer to be uniformly mixed, wherein the mixing temperature is 60 ℃;
(2) and adding the uniformly mixed raw materials into a double-screw extruder for extrusion granulation, wherein the extrusion temperature of the double-screw extruder is 200 ℃, the rotating speed of a screw of the extruder is 350rpm, and finally drying to obtain the polypropylene composite material.
Example 3
The high-strength high-oxygen-resistance polypropylene bonding resin comprises the following components in parts by weight:
the filament diameter of the quartz fiber is 6-12 μm, the softening point is 550-630 ℃, and the density is 2.35-2.72g/cm3The length is 2-5 mm.
The mica powder has a diameter-thickness ratio of more than 80, a specific gravity of 2.6-2.7 and a particle size of 400 meshes.
The polar compatilizer is maleic anhydride grafted polypropylene, and the density of the polar compatilizer is 0.865-0.875g/cm3The grafting rate is 0.8-1.5%, the melt index is 45-50g/10min (190 ℃, 2.16kg), the tensile strength is 25-28MPa, and the melting point is 135-140 ℃.
The preparation method of the polypropylene bonding resin with high strength and high oxygen resistance comprises the following steps:
(1) weighing polypropylene, quartz fiber, mica powder, a polar compatilizer and dioctadecyl ammonium salt according to the proportion, and then adding the polypropylene, the quartz fiber, the mica powder, the polar compatilizer and the dioctadecyl ammonium salt into a high-speed mixer to be uniformly mixed, wherein the mixing temperature is 60 ℃;
(2) and adding the uniformly mixed raw materials into a double-screw extruder for extrusion granulation, wherein the extrusion temperature of the double-screw extruder is 200 ℃, the rotating speed of a screw of the extruder is 350rpm, and finally drying to obtain the polypropylene composite material.
Example 4
The high-strength high-oxygen-resistance polypropylene bonding resin comprises the following components in parts by weight:
the filament diameter of the quartz fiber is 6-12 μm, the softening point is 550-630 ℃, and the density is 2.35-2.72g/cm3The length is 2-5 mm.
The mica powder has a diameter-thickness ratio of more than 80, a specific gravity of 2.6-2.7 and a particle size of 400 meshes.
The polar compatilizer is maleic anhydride grafted polypropylene, and the density of the polar compatilizer is 0.865-0.875g/cm3The grafting rate is 0.8-1.5%, the melt index is 45-50g/10min (190 ℃, 2.16kg), the tensile strength is 25-28MPa, and the melting point is 135-140 ℃.
The preparation method of the polypropylene bonding resin with high strength and high oxygen resistance comprises the following steps:
(1) weighing polypropylene, quartz fiber, mica powder, a polar compatilizer and dioctadecyl ammonium salt according to the proportion, and then adding the polypropylene, the quartz fiber, the mica powder, the polar compatilizer and the dioctadecyl ammonium salt into a high-speed mixer to be uniformly mixed, wherein the mixing temperature is 60 ℃;
(2) and adding the uniformly mixed raw materials into a double-screw extruder for extrusion granulation, wherein the extrusion temperature of the double-screw extruder is 200 ℃, the rotating speed of a screw of the extruder is 350rpm, and finally drying to obtain the polypropylene composite material.
Comparative example
The high-strength and high-oxygen-barrier polypropylene adhesive resin described in examples 1 to 4 was used for producing polypropylene containers, and performance tests were carried out on the polypropylene containers and commercially available polypropylene containers according to respective test standards, wherein the transparency was standardized GB/T2410, and the oxygen barrier was standardized GB/T31354. The results of the experiment are shown in table 1:
TABLE 1
It can be seen that the polypropylene containers produced using the polypropylene adhesive resins of examples 1 to 4 of the present invention have lower oxygen permeability than commercially available polypropylene containers; higher strength indicates less susceptibility of the container to damage, and lower oxygen transmission rates indicate better oxygen barrier properties. In addition, the polypropylene containers produced using the polypropylene adhesive resins of examples 1 to 4 of the present invention had higher peel strength between the adhesive resin and the polypropylene material than those of the commercially available products, indicating that the strength and oxygen transmission rate were improved and the adhesion performance was not affected. It is understood that the polypropylene adhesive resin of the present invention has superior strength and oxygen barrier properties to those of the polypropylene adhesive resins currently available in the market.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.
Claims (9)
1. The high-strength high-oxygen-resistance polypropylene bonding resin is characterized by comprising the following components in parts by weight:
wherein the filament diameter of the quartz fiber is 6-12 μm, the softening point is 550-630 ℃, and the density is 2.35-2.72g/cm3。
2. The high-strength high-oxygen-barrier polypropylene bonding resin as claimed in claim 1, which comprises the following components in parts by weight:
3. the high-strength high oxygen barrier polypropylene bonding resin according to claim 1, wherein the length of the quartz fiber is 2 to 5 mm.
4. The high-strength high-oxygen-barrier polypropylene bonding resin as claimed in claim 1, wherein the mica powder has a diameter-thickness ratio of more than 80, a specific gravity of 2.6-2.7 and a particle size of 400 meshes.
5. The high-strength high-oxygen-barrier polypropylene bonding resin according to claim 1, wherein the polar compatibilizer is maleic anhydride-grafted polypropylene.
6. The high-strength high-oxygen-barrier polypropylene bonding resin according to claim 5, wherein the density of the maleic anhydride grafted polypropylene is 0.865 to 0.875g/cm3The grafting rate is 0.8-1.5%, and under the conditions of 190 ℃ and 2.16kg of pressure, the melt index is 45-50g/10min, the tensile strength is 25-28MPa, and the melting point is 135-140 ℃.
7. A method for preparing the high-strength high-oxygen-barrier polypropylene bonding resin according to any one of claims 1 to 6, comprising the following steps:
(1) weighing polypropylene, quartz fiber, mica powder, a polar compatilizer and dioctadecyl ammonium salt according to the proportion, and then uniformly mixing the polypropylene, the quartz fiber, the mica powder, the polar compatilizer and the dioctadecyl ammonium salt;
(2) and adding the uniformly mixed raw materials into an extruder for extrusion granulation.
8. The method according to claim 7, wherein the temperature of the mixing in the step (1) is 50 to 80 ℃.
9. The method as claimed in claim 7, wherein the extrusion temperature of the extrusion granulation in step (2) is 180-200 ℃, and the rotation speed of the extruder screw is 300-350 rpm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911378276.2A CN111040304A (en) | 2019-12-27 | 2019-12-27 | High-strength high-oxygen-resistance polypropylene bonding resin and preparation method thereof |
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| CN201911378276.2A CN111040304A (en) | 2019-12-27 | 2019-12-27 | High-strength high-oxygen-resistance polypropylene bonding resin and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112812442A (en) * | 2020-12-25 | 2021-05-18 | 上海邦中高分子材料股份有限公司 | PPR material with high low-temperature toughness and high oxygen resistance and preparation method thereof |
| CN112812443A (en) * | 2020-12-25 | 2021-05-18 | 上海邦中新材料有限公司 | PPR composite material and preparation method thereof |
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| CN102352063A (en) * | 2011-09-09 | 2012-02-15 | 甄青松 | Oxygen barrier composite material and preparation method thereof |
| CN107501742A (en) * | 2017-10-13 | 2017-12-22 | 宁波弗兰克电器有限公司 | A kind of heat-resistance polypropylene and preparation method thereof |
| CN109627586A (en) * | 2018-12-20 | 2019-04-16 | 上海邦中高分子材料股份有限公司 | A kind of high-intensitive and PP composite material of high tenacity and preparation method thereof |
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- 2019-12-27 CN CN201911378276.2A patent/CN111040304A/en active Pending
Patent Citations (3)
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| CN102352063A (en) * | 2011-09-09 | 2012-02-15 | 甄青松 | Oxygen barrier composite material and preparation method thereof |
| CN107501742A (en) * | 2017-10-13 | 2017-12-22 | 宁波弗兰克电器有限公司 | A kind of heat-resistance polypropylene and preparation method thereof |
| CN109627586A (en) * | 2018-12-20 | 2019-04-16 | 上海邦中高分子材料股份有限公司 | A kind of high-intensitive and PP composite material of high tenacity and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112812442A (en) * | 2020-12-25 | 2021-05-18 | 上海邦中高分子材料股份有限公司 | PPR material with high low-temperature toughness and high oxygen resistance and preparation method thereof |
| CN112812443A (en) * | 2020-12-25 | 2021-05-18 | 上海邦中新材料有限公司 | PPR composite material and preparation method thereof |
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Application publication date: 20200421 |