CN112961433A - Low-odor enhanced master batch and preparation method thereof - Google Patents
Low-odor enhanced master batch and preparation method thereof Download PDFInfo
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- CN112961433A CN112961433A CN202110171277.0A CN202110171277A CN112961433A CN 112961433 A CN112961433 A CN 112961433A CN 202110171277 A CN202110171277 A CN 202110171277A CN 112961433 A CN112961433 A CN 112961433A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
- C08J3/226—Compounding polymers with additives, e.g. colouring using masterbatch techniques using a polymer as a carrier
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/10—Homopolymers or copolymers of propene
- C08J2423/12—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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/04—Ingredients characterised by their shape and organic or inorganic ingredients
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
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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
- C08K7/00—Use of ingredients characterised by shape
- C08K7/22—Expanded, porous or hollow particles
- C08K7/24—Expanded, porous or hollow particles inorganic
- C08K7/26—Silicon- containing compounds
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Abstract
The invention discloses a low-odor reinforced master batch and a preparation method thereof, belonging to the technical field of automobile materials and comprising the following raw materials in parts by weight: carrier: 15-25 parts of talcum powder: 25-55 parts of opal shale: 25-55 parts of antioxidant: 0.1-0.2 parts of lubricant: 0.2-0.6 part; the components added in the invention are screened and compared to be components with lower volatile content in the market, meanwhile, the opal shale modified master batch is added to be used as a polypropylene filling material to prepare the talcum powder and opal shale master batch, and the opal shale has the function of mesoporous adsorption, so that the volatile micromolecule substances are adsorbed by the material, and the odor and VOC of the material can be reduced under the condition that the strength performance of the polypropylene is enhanced by the opal shale. According to the invention, the opal shale with the reinforcing and adsorbing functions is added into the reinforcing master batch, so that the smell of the reinforcing master batch can be improved, and the influence on the smell and volatility of the final modified material is avoided.
Description
Technical Field
The invention belongs to the technical field of automobile materials, and particularly relates to a low-odor reinforced master batch and a preparation method thereof.
Background
With the requirements of national regulations and the attention of consumers to the health of the interior of the automobile in recent years, the quality of air in the automobile is always concerned by the automobile industry. Non-metal materials in the automotive interior are main factors influencing the quality of air in the automobile, and the performance of controlling the odor and VOC of the materials becomes a key. The consumption of the polypropylene material in the interior material of the finished automobile is the largest, taking a certain automobile as an example, the polypropylene material accounts for about 20% of the non-metal material of the finished automobile, and the consumption of the polypropylene in the interior is about 25kg, which is a key influence factor of the air quality in the finished automobile.
At present, PP materials used for vehicle interior trims are mostly produced in a traditional mode, the odor and VOC (volatile organic compounds) of the materials cannot be fundamentally improved, and the mode of baking raw material particles and products is adopted, so that double pressure of cycle and cost is brought. Suppliers of raw materials and parts are urgently seeking solutions. The talcum powder master batch has the effect of enhancing the modified PP material, the addition amount is 5-30%, and the talcum powder master batch accounts for a large proportion, and is a key factor influencing the smell and VOC (volatile organic compounds) of the interior PP material. The talcum powder master batch has larger smell, but the production environment is easy to cause dust pollution by simply adding the talcum powder. It is therefore essential to improve the odor and VOC of the talc powder masterbatch.
At present, in order to reduce the odor and VOC of talcum powder master batches, polyisobutylene is used as a carrier, a small amount of deodorant is added, but the used deodorant is microporous zeolite and the like, the used odor inhibitor is a microporous material, the specific surface area of the microporous material is large, the surface activity is high, and the adsorbed water cannot be removed at the temperature of PP material drying. There is no introduction of improving the talc powder masterbatch by adding opal shale powder. The protein powder has the function of generating negative ions, and is added into resin directly or made into plastic functional particles in a plurality of ways, so that the function of reducing odor and VOC is not achieved.
In order to improve the odor and VOC requirements of automobile materials, various material manufacturers have management requirements from various components, and PP for automobiles is modified by modified material manufacturers, such as increasing toughening and reinforcing materials. The method mainly comprises the step of carrying out talcum powder enhancement modification, wherein the talcum powder is added in two modes, one mode is powder adding, the other mode is prepared into talcum powder master batch for adding, and each adding mode has advantages and disadvantages.
The powder is added, so that dust pollution is easily caused to the production environment; the talc powder is added in the form of master batch, so that the processing technology can be improved, but the master batch has a large smell, and the smell of the PP material for the vehicle is influenced finally.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides the low-odor reinforced master batch and the preparation method thereof.
The invention is realized by the following technical scheme:
the low-odor enhanced master batch is prepared from the following raw materials in parts by weight:
carrier: 15-25 parts of,
Talc powder: 25 to 55 portions of,
Opal shale: 25 to 55 portions of,
Antioxidant: 0.1 to 0.2 portion of,
Lubricant: 0.2 to 0.6 portion.
Preferably, the low-odor reinforced master batch is prepared from the following raw materials in parts by weight:
carrier: 15-25 parts of,
Talc powder: 35 to 45 portions of,
Opal shale: 35 to 45 portions of,
Antioxidant: 0.1 to 0.2 portion of,
Lubricant: 0.2 to 0.6 portion.
Preferably, the carrier is PP, and the preferred production process is Spherizone process or Spheripol process.
Preferably, the mesh number of the talcum powder is 1000-3000, and the silicon content is more than 60%.
Preferably, the mesh number of the opal shale is 1000-3000.
Preferably, the weight part ratio of the talcum powder to the opal shale is 1: 1.
preferably, the antioxidant is formed by mixing a main antioxidant and an auxiliary antioxidant in a weight ratio of 1:2, wherein the main antioxidant and the auxiliary antioxidant are at least one of phenols, amines, phosphites, semi-hindered phenols or acryloyl functional groups; if the main antioxidant is one or the mixture of basf 1010 or 1076 in any ratio, preferably 1076; secondary antioxidant basf 168.
Preferably, the lubricant is zinc or calcium stearate, EBS, stearic acid or paraffin wax, preferably zinc or calcium stearate and EBS.
The invention also aims to provide a preparation method of the low-odor reinforced master batch, which comprises the following specific steps:
1. weighing the raw materials according to the weight ratio;
2. mixing a carrier, talcum powder, opal shale, an antioxidant and a lubricant in a mixing roll or an internal mixer at the temperature of 110-130 ℃;
3. putting the mixed raw materials into a double-screw extruder for extruding, cooling and granulating, wherein the rotating speed of a screw is 180-160 r/min, and the temperature is 180-220 ℃ according to different areas; meanwhile, a vacuum device is adopted for vacuum pumping treatment, and the vacuum degree is 0.07-0.12 MPa.
Compared with the prior art, the invention has the following advantages:
the components added in the invention are screened and compared to be components with lower volatile content in the market, meanwhile, the opal shale modified master batch is added to be used as a polypropylene filling material to prepare the talcum powder and opal shale master batch, and the opal shale has the function of mesoporous adsorption, so that the volatile micromolecule substances are adsorbed by the material, and the odor and VOC of the material can be reduced under the condition that the strength performance of the polypropylene is enhanced by the opal shale.
Detailed Description
The following embodiments are merely examples for illustrating the technical solutions of the present invention more clearly, and therefore, the following embodiments are only examples, and the protection scope of the present invention is not limited thereby.
It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the invention pertains.
Comparative example 1: the formulation composition is as per table 1, with PP being produced by the Unipol process; the talcum powder has a mesh number of 1250 and is SiO2The content is 40 percent; the ratio of the antioxidant 1076 to the antioxidant 168 in the antioxidant is 1: 1; the lubricant is white oil. Mixing the above mixed raw materials in a mixing roll or an internal mixer at the temperature of 110-130 ℃; putting the mixed raw materials into a double-screw extruder for extruding, cooling and granulating, wherein the rotating speed of the screw is 180-160 r/min, and the temperature is 180-220 ℃ according to different regions.
Examples
The embodiment of the invention provides a low-odor reinforced master batch which is prepared from the following raw materials in parts by weight:
carrier: 15-25 parts of,
Talc powder: 25 to 55 portions of,
Opal shale: 25 to 55 portions of,
Antioxidant: 0.1 to 0.2 portion of,
Lubricant: 0.2 to 0.6 portion.
Wherein the carrier is PP, and the preferred production process is Spherizone process and Spheripol process.
The mesh number of the talcum powder is 1000-3000, and the silicon content is more than 60 percent.
The mesh number of the opal shale is 1000-3000, the opal shale has a large number of capillary micropores, the pore diameter is 5-30 nm, the specific surface area is especially large and exceeds 200cm2The water absorption rate is 74.4 percent, the water absorption is strong, the adsorbability is good, and volatile substances such as aldehydes, benzene and the like can be adsorbed.
The weight part ratio of the talcum powder to the opal shale is 1: 1.
the antioxidant is formed by mixing a main antioxidant and an auxiliary antioxidant, the mixing weight ratio is 1:2, and the antioxidant can be at least one of phenols, amines, phosphites, semi-hindered phenols or acryloyl functional groups; if the main antioxidant is one or mixture of basf 1010 or basf 1076, preferably 1076; secondary antioxidant basf 168.
The lubricant is zinc or calcium stearate, EBS, stearic acid or paraffin, preferably zinc or calcium stearate and EBS.
Example 1
The low-odor enhanced master batch is prepared from the following raw materials in parts by weight:
carrier: 20 portions of,
Talc powder: 55 parts of,
Opal shale: 25 portions of,
Antioxidant: 0.2 part of antioxidant 10760.1 parts and auxiliary antioxidant 1680.1 parts;
zinc stearate: 0.5 part.
Example 2
The low-odor enhanced master batch is prepared from the following raw materials in parts by weight:
carrier: 20 portions of,
Talc powder: 50 portions of,
Opal shale: 30 portions of,
Antioxidant: 0.2 part of antioxidant 10760.1 parts and auxiliary antioxidant 1680.1 parts;
zinc stearate: 0.5 part.
Example 3
The low-odor enhanced master batch is prepared from the following raw materials in parts by weight:
carrier: 20 portions of,
Talc powder: 45 portions of,
Opal shale: 35 parts of,
Antioxidant: 0.2 part of antioxidant 10760.1 parts and auxiliary antioxidant 1680.1 parts;
zinc stearate: 0.5 part.
Example 4
The low-odor enhanced master batch is prepared from the following raw materials in parts by weight:
carrier: 20 portions of,
Talc powder: 40 portions of,
Opal shale: 40 portions of,
Antioxidant: 0.2 part of antioxidant 10760.1 parts and auxiliary antioxidant 1680.1 parts;
zinc stearate: 0.5 part.
Example 5
The low-odor enhanced master batch is prepared from the following raw materials in parts by weight:
carrier: 20 portions of,
Talc powder: 35 parts of,
Opal shale: 45 portions of,
Antioxidant: 0.2 part of antioxidant 10760.1 parts and auxiliary antioxidant 1680.1 parts;
zinc stearate: 0.5 part.
Example 6
The low-odor enhanced master batch is prepared from the following raw materials in parts by weight:
carrier: 20 portions of,
Talc powder: 30 portions of,
Opal shale: 50 portions of,
Antioxidant: 0.2 part of antioxidant 10760.1 parts and auxiliary antioxidant 1680.1 parts;
zinc stearate: 0.5 part.
Example 7
The low-odor enhanced master batch is prepared from the following raw materials in parts by weight:
carrier: 20 portions of,
Talc powder: 25 portions of,
Opal shale: 55 parts of,
Antioxidant: 0.2 part of antioxidant 10760.1 parts and auxiliary antioxidant 1680.1 parts;
zinc stearate: 0.5 part.
Example 1-example 7: the preparation is carried out according to the proportion in the table 1, and the implementation steps are as follows: mixing the carrier, the talcum powder, the opal shale, the antioxidant and the lubricant in a mixing mill or an internal mixer at the temperature of 110-130 ℃; putting the mixed raw materials into a double-screw extruder for extruding, cooling and granulating, wherein the rotating speed of a screw is 180-160 r/min, and the temperature is 180-220 ℃ according to different areas; meanwhile, a vacuum device is adopted for vacuum pumping treatment, and the vacuum degree is 0.07-0.12 MP.
Table 1 formulation ingredient ratios
Performance testing
The reinforced master batches prepared in the examples and the comparative examples are compared, and the odor test method is carried out according to the enterprise standard (80 ℃ C. 2h), and the TVOC is carried out according to the enterprise standard. The comparison results are shown in table 2, and it is obvious from table 2 that, compared with the comparative example, the addition of talcum powder and opal shale has obvious advantages in terms of odor and TVOC volatilization amount, the odor can be below 4, and the TVOC value can be below 15; when the addition amount of the talcum powder and the opal shale is between 35 and 45 parts, the odor value can be between 3.2 and 3.3, the TVOC value can reach below 10, and the effect is better.
TABLE 2 test results
Odor evaluation score rating:
no odor was felt at 1 point;
2 minutes can feel smell, but has no stimulation to people;
3 minutes obviously feels the smell, but does not stimulate people;
4 minutes can obviously feel smell and stimulate people;
5 minute odor has strong stimulation to human;
the 6-point smell is strong to human and cannot be tolerated.
The preferred embodiments of the present invention have been described in detail, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (10)
1. The low-odor enhanced master batch is characterized by comprising the following raw materials in parts by weight:
carrier: 15-25 parts of,
Talc powder: 25 to 55 portions of,
Opal shale: 25 to 55 portions of,
Antioxidant: 0.1 to 0.2 portion of,
Lubricant: 0.2 to 0.6 portion.
2. The low odor enhancing masterbatch of claim 1 wherein a low odor enhancing masterbatch is characterized by a carrier: 15-25 parts of,
Talc powder: 35 to 45 portions of,
Opal shale: 35 to 45 portions of,
Antioxidant: 0.1 to 0.2 portion of,
Lubricant: 0.2 to 0.6 portion.
3. The low odor enhancing masterbatch of claim 1 wherein said carrier is PP and the manufacturing process is Spherizone process or Spheripol process.
4. The low-odor enhancing masterbatch as claimed in claim 1, wherein the talc has a mesh size of 1000-3000 and a silicon content of more than 60%.
5. The low odor enhancing masterbatch of claim 1 wherein said opal shale has a mesh size of 1000-3000.
6. The low odor master batch of claim 1 wherein the ratio of the talc to the opal shale is 1: 1.
7. the low-odor enhancing masterbatch according to claim 1, wherein the antioxidant is a mixture of a primary antioxidant and a secondary antioxidant in a weight ratio of 1:2, wherein the primary antioxidant and the secondary antioxidant are at least one of phenolic, amine, phosphite, semi-hindered phenolic or acryl functional groups.
8. The low odor enhancing masterbatch of claim 1 wherein said lubricant is zinc or calcium stearate, EBS, stearic acid or paraffin wax, preferably zinc or calcium stearate and EBS.
9. The method for preparing the low-odor enhancing masterbatch as claimed in claim 1, wherein the method comprises the following steps:
(1) weighing the raw materials according to the weight ratio;
(2) mixing the carrier, the talcum powder, the opal shale, the antioxidant and the lubricant in a mixing roll or an internal mixer at the temperature of 110-130 ℃;
(3) putting the mixed raw materials into a double-screw extruder for extruding, cooling and granulating, wherein the rotating speed of a screw is 180-160 r/min, and the temperature is 180-220 ℃ according to different areas; meanwhile, a vacuum device is adopted for vacuum pumping treatment, and the vacuum degree is 0.07-0.12 MPa.
10. The method for preparing the low-odor reinforced master batch as claimed in claim 9, wherein the weight ratio of the raw materials is as follows:
carrier: 15-25 parts of,
Talc powder: 25 to 55 portions of,
Opal shale: 25 to 55 portions of,
Antioxidant: 0.1 to 0.2 portion of,
Lubricant: 0.2 to 0.6 portion.
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Application publication date: 20210615 |