CN112625347A - Low-odor, high-performance and environment-friendly polypropylene composite material and preparation method thereof - Google Patents
Low-odor, high-performance and environment-friendly polypropylene composite material and preparation method thereof Download PDFInfo
- Publication number
- CN112625347A CN112625347A CN202011472461.0A CN202011472461A CN112625347A CN 112625347 A CN112625347 A CN 112625347A CN 202011472461 A CN202011472461 A CN 202011472461A CN 112625347 A CN112625347 A CN 112625347A
- Authority
- CN
- China
- Prior art keywords
- polypropylene
- low
- odor
- polypropylene composite
- functional master
- 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
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
- 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
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- 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
-
- 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
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/066—LDPE (radical process)
Abstract
The invention discloses a low-odor, high-performance and environment-friendly polypropylene composite material and a preparation method thereof, wherein the polypropylene composite material comprises the following raw materials in parts by weight: polypropylene reclaimed material: 57.5-75.5; talc powder: 10-20 parts of; elastomer: 6-10; functional master batch: 3-10; a compatilizer: 1-5; antioxidant: 0 to 1; other auxiliary agents: 0 to 3; the invention has the advantages that: in order to relieve the environmental pollution pressure generated by polypropylene plastics, the invention introduces an efficient functional master batch into the formula of the modified polypropylene reclaimed material to improve the odor emission performance of the modified polypropylene reclaimed material. The main components of orange peel particles in the functional master batch comprise pectin, cellulose, lignin and the like, have a loose and porous structure, show good adsorption capacity, and can adsorb small molecular substances generated by melt extrusion of polypropylene reclaimed materials; and pectin in the orange peel shows a certain orange fruit flavor, the existence of the pectin can improve the integral flavor of a material system, and the orange fruit flavor is harmless to human bodies and is environment-friendly.
Description
Technical Field
The invention belongs to the technical field of polymer modification and processing, and has important significance for environmental protection by optimizing material formula design, endowing the composite material with the characteristics of low odor and high performance and recycling the polypropylene material.
Background
The polypropylene is widely applied to the fields of buildings, traffic, automobiles, household appliances and the like because of light weight, low price, no toxicity, chemical corrosion resistance and good physical processing performance, and is a universal plastic with the fastest growth speed and larger dosage at present. The large amount of the used polypropylene plastic is more than that thrown in the future, the waste plastic products bring troubles to the normal life of people, the common polypropylene plastic is difficult to degrade under natural conditions, generally, the polypropylene plastic needs dozens of years to hundreds of years, and the polypropylene plastic can also damage the soil structure, influence the growth of plant roots and possibly be damaged by the mistaken eating of animals. Therefore, in order to not burden the environment, recycling of plastics is urgently needed, and particularly in recent years, under the large background that the country advocates green sustainable development and develops recycling economy, recycling of polypropylene plastics makes great sense to develop an environment-friendly polypropylene composite material to replace part of polypropylene materials with the largest usage amount of interior and exterior automotive parts.
The recycled polypropylene plastic, also called polypropylene reclaimed material, can easily generate unpleasant odor when being used by re-production extrusion and injection molding due to the recycling characteristic, and the physical properties are partially lost, so that the inconvenience is brought to the application and popularization of the automotive upholstery with certain requirements on the odor and the physical properties.
Recently, there are some reports on the research of regenerated and environment-friendly materials respectively, for example, patent CN109181098A mentions that a low-odor environment-friendly polypropylene composite material is prepared by using the combined action of whisker silicon and other additives, but the polypropylene used is not a regenerated polypropylene material and has little contribution to environmental protection; in patent CN110358190A, it is mentioned that a mixed raw material containing water and an auxiliary agent is added into a polypropylene composite material system under the action of a certain pressure and temperature, and in the subsequent melt extrusion, harmful substances partially dissolved in water are taken away by vaporization of water, so as to improve the overall odor level of the material, but the used polypropylene material is not a polypropylene regenerated material, and only the odor improvement of the material system is considered in one way, and no consideration is given to the improvement of the comprehensive performance; patent CN111100374A mentions that a natural fiber-filled polypropylene material with surface treatment is used to prepare an environment-friendly polypropylene sheet material, and the polypropylene non-polypropylene regenerated material is also used and the prepared sheet material is not beneficial to application in the automobile field; patent CN111909449A mentions that the use of reclaimed rubber powder instead of general rubber to prepare environment-friendly polypropylene composition does contribute to environmental protection, but does not consider that the smell of reclaimed rubber powder is large and unfavorable to the smell of polypropylene composition system, especially when it is used in the field of automobile interior decoration with high requirement for smell.
Therefore, in order to relieve the environmental pollution pressure generated by the polypropylene plastic and reasonably recycle the polypropylene plastic, the development of the low-odor, high-performance and environment-friendly polypropylene composite material by improving and optimizing the material formula design has great significance.
Disclosure of Invention
The invention provides a low-odor, high-performance and environment-friendly polypropylene composite material and a preparation method thereof. The functional master batch is composed of orange peel particles, low-density polyethylene, nano silicon dioxide, a lubricant, a coupling agent and the like. The orange peel particles are prepared by washing dried orange peel with clear water, soaking in 5% NaOH alkaline solution, rinsing with clear water, oven drying, and pulverizing. The orange peel mainly contains pectin, cellulose, lignin and the like, has a loose and porous structure, shows good adsorption capacity, and can adsorb small molecular substances generated by melt extrusion of polypropylene reclaimed materials; meanwhile, pectin in the orange peel shows a certain orange fruit flavor, the existence of the pectin can improve the integral flavor of a material system, and the orange fruit flavor is harmless to human bodies and is environment-friendly. The nano silicon dioxide has a strong ultraviolet light absorption function, and the addition of the nano silicon dioxide can improve the strength, chemical resistance and ageing resistance of a material system, so that small molecular substances generated by the decomposition of the material can be relieved, and the odor emission performance of the material system can be improved.
In order to achieve the purpose, the invention specifically adopts the following technical scheme:
a low-odor, high-performance and environment-friendly polypropylene composite material comprises the following raw materials in parts by weight:
polypropylene reclaimed material: 57.5-75.5;
talc powder: 10-20 parts of;
elastomer: 6-10;
functional master batch: 3-10;
a compatilizer: 1-5;
antioxidant: 0 to 1;
other auxiliary agents: 0 to 3;
wherein the ash content of the polypropylene reclaimed material is less than or equal to 5 percent, and the melt index (230 ℃, 2.16KG) is more than or equal to 10g/10 min.
The talcum powder is 5000-mesh talcum powder material.
The elastomer is one or two mixture of ethylene and butylene copolymer and ethylene and octene copolymer, and its density is 0.86-0.90g/cm3The melt index is 0.5-6g/10 min.
The functional master batch is prepared from the following components in parts by weight:
25 parts of low-density polyethylene, 35 parts of orange peel particles, 35 parts of nano silicon dioxide, 2 parts of a lubricant and 3 parts of a coupling agent. The low-density polyethylene is conventional low-density polyethylene, the orange peel particles are 100-mesh particles prepared by modifying orange peel, the nano silicon dioxide is amorphous white powder, the particle size range is 1-100 nanometers, the microstructure is spherical and is a flocculent and reticular quasi-particle structure, the lubricant is calcium stearate, and the coupling agent is a silane coupling agent KH 550.
The compatilizer is polar monomer graft polymer, the graft polymer matrix is polyethylene or polypropylene, the graft monomer is maleic anhydride, namely the compatilizer is polypropylene graft maleic anhydride (PP-g-MAH).
The antioxidant is considered by a person skilled in the art to be required, and mainly comprises one or a mixture of more than two of pentaerythritol tetrakis [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate (antioxidant 1010), tris [2, 4-di-tert-butylphenyl ] phosphite (antioxidant 168), stearyl thiodipropionate (antioxidant DSTP), and n-octadecyl beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate (antioxidant 1076).
The other auxiliary agents are one or a combination of more of various color components, light stabilizers, processing aids and the like which are considered to be required by the technical personnel in the field.
The preparation method of the low-odor, high-performance and environment-friendly polypropylene composite material comprises the following steps:
C. preparing functional master batches:
(3) preparation of orange peel granules
The orange peel particles selected in the experiment are 100-mesh particles prepared by washing dried orange peels with clear water, soaking the dried orange peels in 5% NaOH alkaline liquor for 60min, rinsing the orange peels with clear water, drying the orange peels at 100 ℃ and finally crushing the orange peels.
(4) Preparing functional master batches:
the functional master batch is prepared by adding low-density polyethylene, orange peel particles, nano silicon dioxide, a lubricant and a coupling agent into a high-speed mixer together according to the weight components, uniformly mixing, then transferring into a mixing chamber of an internal mixer for high-speed internal mixing, then transferring the internally mixed blocky material to a double-wrist feeding port for feeding, and extruding, air cooling and granulating the blocky material by a single-screw extruder. Wherein the temperature of the mixing chamber in the internal mixer is set at 180-200 ℃, the diameter of the single screw is 60mm, the length-diameter ratio is 16, the single screw extruder is divided into three sections to control the temperature, and the temperature of each section from the feeding port to the machine head is 185 ℃, 190 ℃ and 200 ℃ in sequence.
D. The preparation of the polypropylene composite material with low odor, high performance and environmental friendliness comprises the following steps:
(1) the components are weighed according to the mass ratio;
(2) placing polypropylene reclaimed material, talcum powder, elastomer, functional master batch, compatilizer, antioxidant, other auxiliary agents and the like into a high-speed mixer for high-speed mixing for 6-10 min;
(3) adding the uniformly mixed raw materials into a double-screw extruder from a feeding port, performing melt extrusion, bracing, cooling and granulation, and performing material drying treatment to prepare the low-odor, high-performance and environment-friendly polypropylene composite material, wherein the processing process temperature of each area of the double-screw extruder is as follows: a first area: 190 ℃ at 180 ℃, 195 ℃ at two regions, 215 ℃ at three regions and 210 ℃ at four regions, 205 ℃ at 210 ℃. The time of the whole extrusion process is about 2 minutes, the pressure is 12-18Mpa, the rotating speed of a main screw is 500-700r/min, the temperature of a water tank is 40-60 ℃, water is injected into the melt in the area of a conveying module of the double-screw extruder, the water injection amount is controlled by a meter, and the addition amount is controlled to be 0.5-1%. And simultaneously, double-vacuum pumping is added at two sides of the double-screw extruder, the vacuum degree of the double vacuum is-0.07 MPa to-0.08 MPa, and the micromolecule substances generated in the extrusion granulation process are removed by vacuum pumping. The material drying treatment adopts a new material drying process: storing in a tank A, drying in a tank B, cooling in a tank C, wherein the drying process in the tank B comprises the following steps: 130 ℃ 4H.
The invention has the advantages that:
in order to relieve the environmental pollution pressure generated by polypropylene plastics, the invention introduces an efficient functional master batch into the formula of the modified polypropylene reclaimed material to improve the odor emission performance of the modified polypropylene reclaimed material. The main components of orange peel particles in the functional master batch comprise pectin, cellulose, lignin and the like, have a loose and porous structure, show good adsorption capacity, and can adsorb small molecular substances generated by melt extrusion of polypropylene reclaimed materials; and pectin in the orange peel shows a certain orange fruit flavor, the existence of the pectin can improve the integral flavor of a material system, and the orange fruit flavor is harmless to human bodies and is environment-friendly. The nano silicon dioxide in the functional master batch has a strong ultraviolet light absorption function, and the addition of the nano silicon dioxide can improve the strength, chemical resistance and ageing resistance of a material system, so that small molecular substances generated by the decomposition of the material can be relieved, and the odor emission performance of the material system can be further improved. On the other hand, in the production and extrusion process, water is injected into the material system, and decomposed small molecules are removed from the material by utilizing the principle of vaporization and extraction, which also greatly helps to improve the odor emission performance of the whole material system. Meanwhile, the preparation process of the low-odor, high-performance and environment-friendly polypropylene composite material provided by the invention is simple and the production cost is low.
The specific implementation mode is as follows:
the present invention will be described in detail with reference to specific examples. Except for specific indications, the components in the examples are in parts by weight.
The examples of the present invention and the comparative examples contain the respective component contents shown in Table 1.
TABLE 1 contents (mass%) of respective main components in examples and comparative examples
The polypropylene regrind described in the examples and comparative examples of Table 1 above, having a melt flow rate of 30g/10min, was manufactured by Green Med Ltd. The talcum powder is talcum powder with the mesh number of about 5000 meshes, and is from Shanghai Polyqian chemical Co., Ltd, the elastomer is thermoplastic POE elastomer produced by LG company, and the grade is LC 168. The orange peel in the functional master batch is sold in the market. The low-density polyethylene in the functional master batch is produced by Yanshan petrochemical company and has the brand number of 1C 7A. The nano silicon dioxide in the functional master batch is from Jiangsu Tianxing New Material Co., Ltd, and is of a brand TSP-L12. The lubricant in the functional master batch is calcium stearate and is from Guangzhou Jia sanden chemical company Limited. The coupling agent in the functional master batch is a silane coupling agent KH550 which is commercially available. The antioxidant is a compound antioxidant of 1010 (tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid ] pentaerythritol ester)/tri [2, 4-di-tert-butylphenyl ] phosphite (antioxidant 168)/DSTP (stearyl thiodipropionate) according to the mass ratio of 1:2: 1. The other auxiliary agents mainly refer to color components, light stabilizers and the like commonly used in the industry.
The specific implementation is developed as follows:
A. preparing functional master batches:
(1) preparation of orange peel granules
The orange peel particles selected in the experiment are 100-mesh particles prepared by washing dried orange peels with clear water, soaking the dried orange peels in 5% NaOH alkaline liquor for 60min, rinsing the orange peels with clear water, drying the orange peels at 100 ℃ and finally crushing the orange peels.
(2) Preparing functional master batches:
the functional master batch is prepared by adding low-density polyethylene, orange peel particles, nano silicon dioxide, a lubricant and a coupling agent into a high-speed mixer together according to the weight components, uniformly mixing, then transferring into a mixing chamber of an internal mixer for high-speed internal mixing, then transferring the internally mixed blocky material to a double-wrist feeding port for feeding, and extruding, air cooling and granulating the blocky material by a single-screw extruder. Wherein the temperature of the mixing chamber in the internal mixer is set at 180-200 ℃, the diameter of the single screw is 60mm, the length-diameter ratio is 16, the single screw extruder is divided into three sections to control the temperature, and the temperature of each section from the feeding port to the machine head is 185 ℃, 190 ℃ and 200 ℃ in sequence.
B. The preparation of the polypropylene composite material with low odor, high performance and environmental friendliness comprises the following steps:
(1) the components are weighed according to the mass ratio;
(2) placing polypropylene reclaimed material, talcum powder, elastomer, functional master batch, compatilizer, antioxidant, other auxiliary agents and the like into a high-speed mixer for high-speed mixing for 6-10 min;
(3) adding the uniformly mixed raw materials into a double-screw extruder from a feeding port, performing melt extrusion, bracing, cooling and granulation, and performing material drying treatment to prepare the low-odor, high-performance and environment-friendly polypropylene composite material, wherein the processing process temperature of each area of the double-screw extruder is as follows: a first area: 190 ℃ at 180 ℃, 195 ℃ at two regions, 215 ℃ at three regions and 210 ℃ at four regions, 205 ℃ at 210 ℃. The time of the whole extrusion process is about 2 minutes, the pressure is 12-18Mpa, the rotating speed of a main screw is 500-700r/min, the temperature of a water tank is 40-60 ℃, water is injected into the melt in the area of a conveying module of the double-screw extruder, the water injection amount is controlled by a meter, and the addition amount is controlled to be 0.5-1%. And simultaneously, double-vacuum pumping is added at two sides of the double-screw extruder, the vacuum degree of the double vacuum is-0.07 MPa to-0.08 MPa, and the micromolecule substances generated in the extrusion granulation process are removed by vacuum pumping. The material drying treatment adopts a new material drying process: storing in a tank A, drying in a tank B, cooling in a tank C, wherein the drying process in the tank B comprises the following steps: 130 ℃ 4H.
C. The composite particles prepared as described above were dried in a forced air oven at 80-100 ℃ for 2 hours, and then the dried particles were injection molded on an injection molding machine, followed by performance testing.
D. And (3) testing basic mechanical properties: the density was measured according to ISO1183-1, the melt index was measured according to ISO1133-1, the test temperature was 230 ℃, the load was 2.16kg, the tensile strength was tested according to ISO527-2, the specimen size was 170 × 10 × 4mm, the tensile speed was 50mm/min, the flexural modulus was tested according to ISO178, the specimen size was 80 × 10 × 4mm, the span was 64mm, the flexural speed was 2mm/min, the simple beam notched impact strength was tested according to ISO179-1, the specimen size was 80 × 10 × 4mm, and the notched depth was one fifth of the specimen width. Thermo-oxidative ageing was measured according to GB/T7141 and the onset of chalking time of the recording surface was 150 x 100mm in the sample size at 150 ℃. The odor was tested according to Volkswagen PV3900 standard, 50g particles, 80 deg.C/2H.
Material property test data in examples and comparative examples:
from the data results of examples 1-7 and comparative examples 1-2 in the table, it can be found that the comprehensive mechanical property, thermo-oxidative aging property and odor level of the material can be remarkably improved by introducing the functional master batch into the formula system of the recycled polypropylene material and adopting water injection in the extrusion process; further comparison of examples 1-7 shows that the odor level and the taste type of the regenerated polypropylene composite material system are improved obviously with the increase of the content of the functional master batch, wherein comparison of examples 3, 6 and 7 shows that when 5 parts of the functional master batch is added, the odor intensity of the composite material system meets the requirements of automotive interior materials, the taste type is easy to accept, and the orange fragrance of the functional master batch is highlighted by further increasing the addition amount, which is not beneficial to the actual development and application of products; from example 6 and comparative examples 3 and 4, it can be found that under the condition of consistent composite material formula system, the best odor level can be achieved by adopting the condition of 0.5% for water injection amount in the extrusion process, and then the batch production can be realized according to the condition. In conclusion, the regenerated polypropylene material is used as matrix resin, a high-efficiency functional master batch and various auxiliary agents are introduced into a conventional formula, and the high-efficiency functional master batch and the various auxiliary agents are combined to be implemented through a water injection condition in an extrusion process, so that the low-odor, high-performance and environment-friendly polypropylene composite material is prepared.
Claims (8)
1. A low-odor, high-performance and environment-friendly polypropylene composite material is characterized in that: the composite material comprises the following raw materials in parts by weight:
polypropylene reclaimed material: 57.5-75.5;
talc powder: 10-20 parts of;
elastomer: 6-10;
functional master batch: 3-10;
a compatilizer: 1-5;
antioxidant: 0 to 1;
other auxiliary agents: 0 to 3;
the functional master batch is prepared from the following components in parts by weight:
25 parts of low-density polyethylene, 35 parts of orange peel particles, 35 parts of nano silicon dioxide, 2 parts of a lubricant and 3 parts of a coupling agent. The low-density polyethylene is conventional low-density polyethylene, the orange peel particles are 100-mesh particles prepared by modifying orange peel, the nano silicon dioxide is amorphous white powder, the particle size range is 1-100 nanometers, the microstructure is spherical and is a flocculent and reticular quasi-particle structure, the lubricant is calcium stearate, and the coupling agent is a silane coupling agent KH 550.
2. The low odor, high performance, environmentally friendly polypropylene composite of claim 1 wherein: the ash content of the polypropylene reclaimed material is less than or equal to 5 percent, and the melt index (230 ℃, 2.16KG) is more than or equal to 10g/10 min.
3. The low odor, high performance, environmentally friendly polypropylene composite of claim 1 wherein: the talcum powder is 5000-mesh talcum powder material.
4. The low odor, high performance, environmentally friendly polypropylene composite of claim 1 wherein: the elastomer is one or two mixture of ethylene and butylene copolymer and ethylene and octene copolymer, and its density is 0.86-0.90g/cm3The melt index is 0.5-6g/10 min.
5. The low odor, high performance, environmentally friendly polypropylene composite of claim 1 wherein: the compatilizer is polar monomer graft polymer, the graft polymer matrix is polyethylene or polypropylene, the graft monomer is maleic anhydride, namely the compatilizer is polypropylene graft maleic anhydride (PP-g-MAH).
6. The low odor, high performance, environmentally friendly polypropylene composite of claim 1 wherein: the antioxidant is considered by a person skilled in the art to be required, and mainly comprises one or a mixture of more than two of pentaerythritol tetrakis [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate (antioxidant 1010), tris [2, 4-di-tert-butylphenyl ] phosphite (antioxidant 168), stearyl thiodipropionate (antioxidant DSTP), and n-octadecyl beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate (antioxidant 1076).
7. The low odor, high performance, environmentally friendly polypropylene composite of claim 1 wherein: the other auxiliary agents are one or a combination of more of various color components, light stabilizers, processing aids and the like which are considered to be required by the technical personnel in the field.
8. The method for preparing a low-odor, high-performance, environmentally friendly polypropylene composite material according to any one of claims 1 to 7, wherein: the method comprises the following steps:
A. preparing functional master batches:
(1) preparation of orange peel granules
The orange peel particles selected in the experiment are prepared by washing dried orange peel with clear water, soaking in 5% NaOH alkaline solution for 60min, rinsing with clear water, drying at 100 ℃, and pulverizing to obtain 100-mesh particles;
(2) preparing functional master batches:
the functional master batch is prepared by adding low-density polyethylene, orange peel particles, nano silicon dioxide, a lubricant and a coupling agent into a high-speed mixer together according to the weight components, uniformly mixing, then transferring into a mixing chamber of an internal mixer for high-speed internal mixing, then transferring the internally mixed blocky material to a double-wrist feeding port for feeding, and extruding, air cooling and granulating the blocky material by a single-screw extruder. Wherein the temperature of the mixing chamber in the internal mixer is set at 180-200 ℃, the diameter of the single screw is 60mm, the length-diameter ratio is 16, the single screw extruder is divided into three sections to control the temperature, and the temperature of each section from the feeding port to the machine head is 185 ℃, 190 ℃ and 200 ℃ in sequence.
B. The preparation of the polypropylene composite material with low odor, high performance and environmental friendliness comprises the following steps:
(1) the components are weighed according to the mass ratio;
(2) placing polypropylene reclaimed material, talcum powder, elastomer, functional master batch, compatilizer, antioxidant, other auxiliary agents and the like into a high-speed mixer for high-speed mixing for 6-10 min;
(3) adding the uniformly mixed raw materials into a double-screw extruder from a feeding port, performing melt extrusion, bracing, cooling and granulation, and performing material drying treatment to prepare the low-odor, high-performance and environment-friendly polypropylene composite material, wherein the processing process temperature of each area of the double-screw extruder is as follows: a first area: 190 ℃ at 180 ℃, 195 ℃ at two regions, 215 ℃ at three regions and 210 ℃ at four regions, 205 ℃ at 210 ℃. The time of the whole extrusion process is about 2 minutes, the pressure is 12-18Mpa, the rotating speed of a main screw is 500-700r/min, the temperature of a water tank is 40-60 ℃, water is injected into the melt in a conveying module area of the double-screw extruder, the water injection amount is controlled by a meter, and the addition amount is controlled to be 0.5-1%; and simultaneously, double-vacuum pumping is added at two sides of the double-screw extruder, the vacuum degree of the double vacuum is-0.07 MPa to-0.08 MPa, and the micromolecule substances generated in the extrusion granulation process are removed by vacuum pumping. The material drying treatment adopts a new material drying process: storing in a tank A, drying in a tank B, cooling in a tank C, wherein the drying process in the tank B comprises the following steps: 130 ℃ 4H.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011472461.0A CN112625347A (en) | 2020-12-15 | 2020-12-15 | Low-odor, high-performance and environment-friendly polypropylene composite material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011472461.0A CN112625347A (en) | 2020-12-15 | 2020-12-15 | Low-odor, high-performance and environment-friendly polypropylene composite material and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112625347A true CN112625347A (en) | 2021-04-09 |
Family
ID=75313619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011472461.0A Pending CN112625347A (en) | 2020-12-15 | 2020-12-15 | Low-odor, high-performance and environment-friendly polypropylene composite material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112625347A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110317409A (en) * | 2019-07-26 | 2019-10-11 | 中广核俊尔（上海）新材料有限公司 | A kind of PP composite material and preparation method thereof of low smell |
| CN114163731A (en) * | 2021-12-28 | 2022-03-11 | 上海普利特复合材料股份有限公司 | Low-odor high-performance plant fiber reinforced regenerated polypropylene composite material and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108148276A (en) * | 2017-12-26 | 2018-06-12 | 上海普利特复合材料股份有限公司 | A kind of low smell, low VOC PP composite material preparation method |
| CN108178878A (en) * | 2017-12-27 | 2018-06-19 | 重庆普利特新材料有限公司 | A kind of odor adsorption type functional agglomerate and preparation method and the automotive trim PP composite material being made from it |
| CN108752721A (en) * | 2018-05-17 | 2018-11-06 | 浙江三益鞋业有限公司 | A kind of antibacterial shoe |
| CN109679226A (en) * | 2018-12-25 | 2019-04-26 | 浙江普利特新材料有限公司 | A kind of low gloss, low smell, seamless gasbag instrument board PP composite material and preparation method thereof |
| CN111040288A (en) * | 2019-12-25 | 2020-04-21 | 温州市创本鞋材有限公司 | EVA shoe pad and preparation process thereof |
-
2020
- 2020-12-15 CN CN202011472461.0A patent/CN112625347A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108148276A (en) * | 2017-12-26 | 2018-06-12 | 上海普利特复合材料股份有限公司 | A kind of low smell, low VOC PP composite material preparation method |
| CN108178878A (en) * | 2017-12-27 | 2018-06-19 | 重庆普利特新材料有限公司 | A kind of odor adsorption type functional agglomerate and preparation method and the automotive trim PP composite material being made from it |
| CN108752721A (en) * | 2018-05-17 | 2018-11-06 | 浙江三益鞋业有限公司 | A kind of antibacterial shoe |
| CN109679226A (en) * | 2018-12-25 | 2019-04-26 | 浙江普利特新材料有限公司 | A kind of low gloss, low smell, seamless gasbag instrument board PP composite material and preparation method thereof |
| CN111040288A (en) * | 2019-12-25 | 2020-04-21 | 温州市创本鞋材有限公司 | EVA shoe pad and preparation process thereof |
Non-Patent Citations (3)
| Title |
|---|
| 宋文主编: "《初中化学公式定理理解与应用手册》", 31 January 2006, 成都：四川出版集团 * |
| 朱洪法 等: "《工业助剂手册》", 30 June 2007, 北京：金盾出版社 * |
| 王美华等: "天然可降解柚子皮吸附材料制备及其对有机污染物的吸附性能", 《浙江化工》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110317409A (en) * | 2019-07-26 | 2019-10-11 | 中广核俊尔（上海）新材料有限公司 | A kind of PP composite material and preparation method thereof of low smell |
| CN114163731A (en) * | 2021-12-28 | 2022-03-11 | 上海普利特复合材料股份有限公司 | Low-odor high-performance plant fiber reinforced regenerated polypropylene composite material and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109535670B (en) | Full-degradable simulation material and preparation method thereof | |
| CN110358264B (en) | Bio-based environment-friendly packaging bag and preparation method thereof | |
| CN114163731A (en) | Low-odor high-performance plant fiber reinforced regenerated polypropylene composite material and preparation method thereof | |
| CN108948690B (en) | Polylactic acid-lignin-starch composite material and preparation method thereof | |
| CN112625347A (en) | Low-odor, high-performance and environment-friendly polypropylene composite material and preparation method thereof | |
| CN109251494B (en) | Natural gutta-percha/cellulose modified polylactic acid composite material and preparation method thereof | |
| CN112063140A (en) | Polylactic acid modified material for injection molding product and preparation method thereof | |
| CN108676341A (en) | PC/PMMA/PETG ternary-alloy materials and preparation method thereof | |
| CN113388238B (en) | PBAT composite material and preparation method and application thereof | |
| CN101759968A (en) | Biodegradable film and preparation method thereof | |
| CN112940389A (en) | Anaerobic degradation material and preparation method thereof | |
| CN101880412A (en) | Full-degradable injection molding composite material and preparation method thereof | |
| CN1298777C (en) | Thermal oxidative degradation-promoting mother particle used for plastics and its preparation method | |
| KR20170059175A (en) | Method for manufacturing bioplastic composite using wood flour and bioplastic composite produced by using the same | |
| CN112321938A (en) | Low-emission PP material and preparation method thereof | |
| CN111073254A (en) | Lightweight, low-cost, low-odor and degradable natural fiber reinforced polycarbonate reclaimed material and preparation method thereof | |
| CN111087703A (en) | High-brightness black scratch-resistant thin-walled polypropylene composite material and preparation method thereof | |
| CN110628233A (en) | Cross-linking reaction extruded wood-plastic profile and preparation method thereof | |
| CN111286124B (en) | Low-volatility regenerated polypropylene composite material and preparation method thereof | |
| KR101208107B1 (en) | Manufacturing method of plastic for car interior material using biomass pellet and thereof | |
| CN111040309A (en) | Polypropylene composite material and preparation method and application thereof | |
| CN114805697A (en) | Compatibilizer for improving PLA/PBAT compatibility and high-filling full-biodegradable composite material | |
| CN112280107A (en) | Biodegradable polyolefin plastic composite additive in open land environment and preparation method and application thereof | |
| CN111909449A (en) | Environment-friendly polypropylene composition and preparation method thereof | |
| CN110951274A (en) | Preparation method of bio-based composite material using sugarcane biomass powder as raw material |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210409 |
|
| RJ01 | Rejection of invention patent application after publication |