CN115895114A - Anti-shrinkage degerming master batch for PP (polypropylene) and preparation method thereof - Google Patents
Anti-shrinkage degerming master batch for PP (polypropylene) and preparation method thereof Download PDFInfo
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- CN115895114A CN115895114A CN202211475143.9A CN202211475143A CN115895114A CN 115895114 A CN115895114 A CN 115895114A CN 202211475143 A CN202211475143 A CN 202211475143A CN 115895114 A CN115895114 A CN 115895114A
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- 239000004594 Masterbatch (MB) Substances 0.000 title claims abstract description 39
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- 239000004743 Polypropylene Substances 0.000 title claims description 84
- -1 polypropylene Polymers 0.000 title claims description 15
- 229920001155 polypropylene Polymers 0.000 title claims description 15
- 230000001954 sterilising effect Effects 0.000 claims abstract description 8
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 8
- 238000003756 stirring Methods 0.000 claims description 35
- 239000003795 chemical substances by application Substances 0.000 claims description 22
- 239000000203 mixture Substances 0.000 claims description 20
- 239000002994 raw material Substances 0.000 claims description 17
- OSDLLIBGSJNGJE-UHFFFAOYSA-N 4-chloro-3,5-dimethylphenol Chemical compound CC1=CC(O)=CC(C)=C1Cl OSDLLIBGSJNGJE-UHFFFAOYSA-N 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 12
- 239000003963 antioxidant agent Substances 0.000 claims description 11
- 230000003078 antioxidant effect Effects 0.000 claims description 11
- WPUHLWYDTKIMGG-UHFFFAOYSA-L magnesium;2-hydroxyoctadecanoate Chemical compound [Mg+2].CCCCCCCCCCCCCCCCC(O)C([O-])=O.CCCCCCCCCCCCCCCCC(O)C([O-])=O WPUHLWYDTKIMGG-UHFFFAOYSA-L 0.000 claims description 11
- 238000002156 mixing Methods 0.000 claims description 11
- 239000011347 resin Substances 0.000 claims description 11
- 229920005989 resin Polymers 0.000 claims description 11
- 239000000945 filler Substances 0.000 claims description 8
- 239000004088 foaming agent Substances 0.000 claims description 7
- 238000005469 granulation Methods 0.000 claims description 7
- 230000003179 granulation Effects 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 7
- 238000009775 high-speed stirring Methods 0.000 claims description 7
- 239000000155 melt Substances 0.000 claims description 7
- 238000005303 weighing Methods 0.000 claims description 7
- 239000006057 Non-nutritive feed additive Substances 0.000 claims description 6
- 239000012753 anti-shrinkage agent Substances 0.000 claims description 5
- 238000001125 extrusion Methods 0.000 claims description 5
- 230000000844 anti-bacterial effect Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 239000010445 mica Substances 0.000 claims description 4
- 229910052618 mica group Inorganic materials 0.000 claims description 4
- 239000000654 additive Substances 0.000 claims description 3
- 230000000996 additive effect Effects 0.000 claims description 3
- 150000003242 quaternary ammonium salts Chemical class 0.000 claims description 2
- 239000000454 talc Substances 0.000 claims description 2
- 229910052623 talc Inorganic materials 0.000 claims description 2
- 239000004156 Azodicarbonamide Substances 0.000 claims 2
- XOZUGNYVDXMRKW-AATRIKPKSA-N azodicarbonamide Chemical compound NC(=O)\N=N\C(N)=O XOZUGNYVDXMRKW-AATRIKPKSA-N 0.000 claims 2
- 235000019399 azodicarbonamide Nutrition 0.000 claims 2
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 description 14
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 description 5
- 238000001746 injection moulding Methods 0.000 description 5
- 239000007858 starting material Substances 0.000 description 5
- 238000006467 substitution reaction Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002861 polymer material Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000003899 bactericide agent Substances 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000071 blow moulding Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- LKKQEPWPIQAZPX-UHFFFAOYSA-L magnesium;octadecanoate;hydroxide Chemical compound [OH-].[Mg+2].CCCCCCCCCCCCCCCCCC([O-])=O LKKQEPWPIQAZPX-UHFFFAOYSA-L 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 235000012222 talc Nutrition 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The invention provides an anti-shrinkage degerming master batch for PP and a preparation method thereof. When the anti-shrinkage degerming master batch obtained by the preparation method provided by the invention is applied to a PP product, the tensile strength and the heat distortion temperature of the PP product can be improved, and the shrinkage rate of the PP product can be reduced; in addition, the obtained PP product has the advantage of sterilization.
Description
Technical Field
The invention relates to the technical field of high polymer materials, and particularly relates to an anti-shrinkage degerming master batch for PP (polypropylene) and a preparation method thereof.
Background
The polypropylene resin is a nontoxic and odorless substance, has good chemical resistance, heat resistance, wear resistance and the like, is rapidly developed and applied in the fields of electronic processing, buildings, textiles, machinery and the like, and greatly promotes industrial development.
The polypropylene resin has good performance, so that the polypropylene resin can be suitable for various processes such as blow molding, injection molding, extrusion and the like when being processed into polypropylene products, and provides great production conditions for product diversification. However, since the polypropylene resin PP is a high-crystallinity polymer material, some shrinkage behaviors may occur during the injection molding of a product, which may cause the product to warp, generate internal stress locally and cause product dimensional instability, so that during the preparation of a polypropylene product, the inevitable phenomenon of resin phase cracks may cause product surface defects, dimensional runaway and other problems, which may affect the use of the product.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides an anti-shrinkage degerming master batch for PP and a preparation method thereof. When the anti-shrinkage degerming master batch obtained by the preparation method provided by the invention is applied to a PP product, the tensile strength and the heat distortion temperature of the PP product can be improved, and the shrinkage rate of the PP product can be reduced; in addition, the obtained PP product has the advantage of sterilization, so that the PP product can be better suitable for parts in a wet position.
The technical scheme of the invention is as follows:
an anti-shrinkage degerming master batch for PP comprises the following components in parts by weight:
50-80 parts of resin, 10-30 parts of anti-shrinking agent, 5-20 parts of degerming agent, 0.1-1 part of antioxidant, 1-20 parts of filler and 0.1-1 part of processing aid.
Preferably, the resin is a PP raw material, and the melt index is 10-20g/10min.
Preferably, the antishrinking agent is a combination type low profile additive; the combined low-shrinkage additive is a mixture of HY-30 and ADC foaming agent which are mixed according to a certain proportion, and the mass ratio of HY-30 to ADC comprises but is not limited to 4:1, 3:1, 1:1, 1:2, 1:3 and 1:4; after the anti-shrinkage agent is added, PP crystallization is hindered, so that the shrinkage rate of the material is reduced; after the crystallinity is reduced, the impact strength of the plastic is increased, the toughness is also increased, and the ductility is better.
Preferably, the bactericide is one or a mixture of more than two of parachlorometaxylenol and quaternary ammonium salts in any proportion.
Preferably, the antioxidant is one or a mixture of 1010 or 168 or B215 or 1076 mixed in any proportion.
Preferably, the filler is talc or mica.
Preferably, the processing aid is magnesium hydroxystearate.
The preparation method of the anti-shrinkage degerming master batch for PP comprises a material mixing process and an extrusion process.
Preferably, the mixing process comprises the following steps: accurately weighing various materials, heating and stirring the filler to 100-110 ℃ for dewatering for later use; adding processing aid, antioxidant, anti-shrinking agent and degerming agent into a high-stirring pot, stirring for 2-3min, and finally adding resin and stirring for 2-3min; adding the treated filler into a high-speed stirring pot, stirring at high speed for 3-5min, and mixing to obtain a mixture for later use.
Preferably, the extrusion process is: feeding the mixture into a double-screw extruder for granulation, wherein the temperature in a 1-9 area is 90-220 ℃, and the temperature of a machine head is 220 ℃; the rotating speed of the main machine is 350rmp, the feeding rotating speed is 50Hz, the granulating rotating speed is 30Hz, and the vacuum is 0.08MPa, so that the anti-shrinkage degerming master batch for PP is obtained.
Compared with the prior art, the invention has the beneficial effects that:
1. the PP product prepared from the anti-shrinkage degerming master batch for PP provided by the invention has the advantages of high tensile strength, high thermal deformation temperature and low shrinkage rate.
2. In the process of preparing a PP product by using the anti-shrinkage degerming master batch for PP provided by the invention through an injection molding process, the injection molding pressure maintaining time can be reduced, the injection molding period can be shortened, and the production efficiency can be improved.
3. The PP product prepared from the anti-shrinkage degerming master batch for PP provided by the invention has a degerming effect, and can be used for wet parts such as washing machines and the like.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, shall fall within the protection scope of the present invention.
Example 1
An anti-shrinkage degerming master batch for PP (polypropylene) is prepared by the following steps:
(1) Weighing the following components in parts by weight: 59.5g of PP raw material, 10g of talcum powder, 20g of anti-shrinking agent, 10g of parachlorometaxylenol, 0.3g of magnesium hydroxy stearate and 0.2g of antioxidant; the melt index of the PP raw material is 15g/10 min;
(2) Heating and stirring the talcum powder to 105 ℃ to remove water for later use;
(3) Adding magnesium hydroxystearate, antioxidant 1010, anti-shrinking agent and parachlorometaxylenol into a high-stirring pot, stirring for 2min, and finally adding PP raw material and stirring for 2 min; adding the treated talcum powder into a high-speed stirring pot, stirring at high speed for 3min, and uniformly mixing to obtain a mixture for later use; the anti-shrinking agent consists of HY-30 and ADC foaming agent; the mass ratio of HY-30 to ADC is 4:1;
(4) Feeding the mixture into a double-screw extruder for granulation, wherein the temperature in a 1-9 area is 90-220 ℃, and the temperature of a machine head is 220 ℃; the rotating speed of the main machine is 350rmp, the feeding rotating speed is 50Hz, the granulating rotating speed is 30Hz, and the vacuum is 0.08MPa, so that the anti-shrinkage degerming master batch for PP is obtained.
A sample was prepared from 100g of PP starting material +4g of the PP anti-shrink sterilization master batch obtained in example 1, and the properties of the sample were measured, and the results are shown in Table 1.
Example 2
An anti-shrinkage degerming master batch for PP (polypropylene) is prepared by the following steps:
(1) Weighing the following components in parts by weight: 59.5g of PP raw material, 5g of talcum powder, 5g of mica, 20g of anti-shrinking agent, 10g of parachlorometaxylenol, 0.3g of magnesium hydroxy stearate and 1010.2g of antioxidant; the melt index of the PP raw material is 15g/10 min;
(2) Heating and stirring talcum powder to 100 ℃ for dewatering for later use;
(3) Adding magnesium hydroxystearate, antioxidant 1010, anti-shrinking agent and parachlorometaxylenol into a high-stirring pot, stirring for 2min, and finally adding PP raw material and stirring for 2 min; adding the treated talcum powder into a high-speed stirring pot, stirring at high speed for 3min, and uniformly mixing to obtain a mixture for later use; the anti-shrinking agent consists of HY-30 and ADC foaming agent; the mass ratio of HY-30 to ADC is 3:1;
(4) Feeding the mixture into a double-screw extruder for granulation, wherein the first zone is 90 ℃, the second zone is 110 ℃, the third zone is 130 ℃, the fourth zone is 150 ℃, the fifth zone is 180 ℃, the sixth zone is 200 ℃, the seventh zone is 220 ℃, the eighth zone is 220 ℃, the ninth zone is 200 ℃, and the machine head is 220 ℃; the rotating speed of the main machine is 350rmp, the feeding rotating speed is 50Hz, the granulating rotating speed is 30Hz, and the vacuum is 0.08MPa, so that the anti-shrinkage degerming master batch for PP is obtained.
A sample was prepared from 100g of PP starting material +4g of the PP anti-shrink sterilization master batch obtained in example 2, and the properties of the sample were measured, and the results are shown in Table 1.
Example 3
An anti-shrinkage degerming master batch for PP (polypropylene) is prepared by the following steps:
(1) Weighing the following components by mass: 59.5g of PP raw material, 10g of mica, 20g of anti-shrinking agent, 10g of parachlorometaxylenol, 0.3g of magnesium hydroxy stearate and 0.2g of antioxidant; the melt index of the PP raw material is 15g/10 min;
(2) Heating and stirring talcum powder to 105 ℃ for dewatering for later use;
(3) Adding magnesium hydroxystearate, antioxidant 1010, anti-shrinking agent and parachlorometaxylenol into a high-stirring pot, stirring for 2min, and finally adding PP raw material and stirring for 2 min; adding the treated talcum powder into a high-speed stirring pot, stirring at high speed for 3min, and uniformly mixing to obtain a mixture for later use; the anti-shrinkage agent consists of HY-30 and ADC foaming agent; the mass ratio of HY-30 to ADC is 1:1;
(4) Feeding the mixture into a double-screw extruder for granulation, wherein the first zone is 90 ℃, the second zone is 110 ℃, the third zone is 130 ℃, the fourth zone is 150 ℃, the fifth zone is 180 ℃, the sixth zone is 200 ℃, the seventh zone is 220 ℃, the eighth zone is 220 ℃, the ninth zone is 200 ℃, and the machine head is 220 ℃; the rotating speed of a main machine is 350rmp, the feeding rotating speed is 50Hz, the granulating rotating speed is 30Hz, and the vacuum is 0.08MPa, so that the shrinkage-resistant degerming master batch for PP is obtained.
A sample was prepared from 100g of PP starting material +4g of the PP anti-shrink sterilization master batch obtained in example 3, and the properties of the sample were measured, and the results are shown in Table 1.
Example 4
An anti-shrinkage degerming master batch for PP (polypropylene) is prepared by the following steps:
(1) Weighing the following components by mass: 50g of PP raw material, 20g of talcum powder, 20g of anti-shrinking agent, 8g of parachlorometaxylenol, 1g of magnesium hydroxy stearate and 1010 g of antioxidant; the melt index of the PP raw material is 10g/10min;
(2) Heating and stirring talcum powder to 100 ℃ for dewatering for later use;
(3) Adding magnesium hydroxystearate, antioxidant 1010, anti-shrinking agent and parachlorometaxylenol into a high-stirring pot, stirring for 2min, and finally adding PP raw material and stirring for 2 min; adding the treated talcum powder into a high-speed stirring pot, stirring at high speed for 3min, and uniformly mixing to obtain a mixture for later use; the anti-shrinkage agent consists of HY-30 and ADC foaming agent; the mass ratio of HY-30 to ADC is 1:2;
(4) Feeding the mixture into a double-screw extruder for granulation, wherein the first zone is 90 ℃, the second zone is 110 ℃, the third zone is 130 ℃, the fourth zone is 150 ℃, the fifth zone is 180 ℃, the sixth zone is 200 ℃, the seventh zone is 220 ℃, the eighth zone is 220 ℃, the ninth zone is 200 ℃ and the machine head is 220 ℃; the rotating speed of the main machine is 350rmp, the feeding rotating speed is 50Hz, the granulating rotating speed is 30Hz, and the vacuum is 0.08MPa, so that the anti-shrinkage degerming master batch for PP is obtained.
A sample was prepared from 100g of PP starting material +4g of the PP anti-shrink sterilization master batch obtained in example 4, and the properties of the sample were measured, and the results are shown in Table 1.
Example 5
An anti-shrinkage degerming master batch for PP (polypropylene) is prepared by the following steps:
(1) Weighing the following components by mass: 69g of PP raw material, 10g of talcum powder, 10g of anti-shrinking agent, 10g of parachlorometaxylenol, 0.5g of hydroxyl magnesium stearate and 0.5g of antioxidant; the melt index of the PP raw material is 20g/10 min;
(2) Heating and stirring talcum powder to 100 ℃ for dewatering for later use;
(3) Adding magnesium hydroxystearate, antioxidant 1010, anti-shrinking agent and parachlorometaxylenol into a high-stirring pot, stirring for 2min, and finally adding PP raw material and stirring for 2 min; adding the treated talcum powder into a high-speed stirring pot, stirring at high speed for 3min, and uniformly mixing to obtain a mixture for later use; the anti-shrinkage agent consists of HY-30 and ADC foaming agent; the mass ratio of HY-30 to ADC is 1:3;
(4) Feeding the mixture into a double-screw extruder for granulation, wherein the first zone is 90 ℃, the second zone is 110 ℃, the third zone is 130 ℃, the fourth zone is 150 ℃, the fifth zone is 180 ℃, the sixth zone is 200 ℃, the seventh zone is 220 ℃, the eighth zone is 220 ℃, the ninth zone is 200 ℃, and the machine head is 220 ℃; the rotating speed of a main machine is 350rmp, the feeding rotating speed is 50Hz, the granulating rotating speed is 30Hz, and the vacuum is 0.08MPa, so that the shrinkage-resistant degerming master batch for PP is obtained.
A sample was prepared from 100g of PP starting material +4g of the PP anti-shrink sterilization master batch obtained in example 5, and the properties of the sample were measured, and the results are shown in Table 1.
Comparative example 1
Pure PP tests mechanical property, thermal deformation, mold shrinkage and antibacterial rate.
Mold shrinkage factor/% = (L) 0 -L)/L 0 *100
Wherein L is 0 Representing the cavity size, L representing the sample size, and taking the arithmetic mean of the three sets of data as the measurement result.
Table 1 results of performance testing
Although the present invention has been described in detail by referring to the preferred embodiments, the present invention is not limited thereto. Various equivalent modifications or substitutions can be made on the embodiments of the present invention by those skilled in the art without departing from the spirit and scope of the present invention, and these modifications or substitutions should be within the scope of the present invention/any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present disclosure and the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The anti-shrinkage degerming master batch for PP is characterized by comprising the following components in parts by weight:
50-80 parts of resin, 10-30 parts of anti-shrinking agent, 5-20 parts of degerming agent, 0.1-1 part of antioxidant, 1-20 parts of filler and 0.1-1 part of processing aid.
2. The anti-shrink degerming master batch for PP according to claim 1, wherein the resin is a PP raw material, and the melt index is 10-20g/10min.
3. The anti-shrinkage degerming master batch for PP (polypropylene) according to claim 1, wherein the anti-shrinkage agent is a combined low-shrinkage additive which is a mixture of HY-30 and ADC (azodicarbonamide) foaming agent in a certain proportion.
4. The anti-shrink degerming master batch for PP according to claim 1, wherein the degerming agent is a mixture of one or more than two of parachlorometaxylenol or quaternary ammonium salts in any proportion.
5. The anti-shrink degerming master batch for PP according to claim 1, wherein the antioxidant is one or a mixture of 1010 or 168 or B215 or 1076 mixed in any proportion.
6. The shrink resistant and bactericidal masterbatch for PP according to claim 1, wherein the filler is talc or mica.
7. The shrink resistant and bactericidal masterbatch for PP according to claim 1, wherein the processing aid is magnesium hydroxy stearate.
8. The method for preparing the anti-shrink sterilization master batch for PP according to any one of claims 1 to 7, which comprises a mixing process and an extrusion process.
9. The preparation method of the anti-shrinkage degerming master batch for PP according to claim 8, wherein the mixing process comprises the following steps: accurately weighing various materials, heating and stirring the filler to 100-110 ℃ for dewatering for later use; adding processing aid, antioxidant, anti-shrinking agent and degerming agent into a high-stirring pot, stirring for 2-3min, and finally adding resin and stirring for 2-3min; adding the treated filler into a high-speed stirring pot, stirring at high speed for 3-5min, and mixing to obtain a mixture for later use.
10. The method for preparing the anti-shrinkage degerming master batch for PP according to claim 9, wherein the extrusion process comprises the following steps: feeding the mixture into a double-screw extruder for granulation, controlling the temperature in a zone 1-9 to be 90-220 ℃,
a machine head is 220 ℃; the rotating speed of a main machine is 350rmp, the feeding rotating speed is 50Hz, the granulating rotating speed is 30Hz, the vacuum is 0.08MPa,
obtaining the anti-shrinkage degerming master batch for PP.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103724816A (en) * | 2013-12-17 | 2014-04-16 | 浙江普利特新材料有限公司 | Low-shrinkage antibacterial modified polypropylene composite material and preparation method thereof |
| CN105646984A (en) * | 2016-01-28 | 2016-06-08 | 惠州市环美盛新材料有限公司 | Antibacterial polyethylene foam and preparation method thereof |
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- 2022-11-23 CN CN202211475143.9A patent/CN115895114A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103724816A (en) * | 2013-12-17 | 2014-04-16 | 浙江普利特新材料有限公司 | Low-shrinkage antibacterial modified polypropylene composite material and preparation method thereof |
| CN105646984A (en) * | 2016-01-28 | 2016-06-08 | 惠州市环美盛新材料有限公司 | Antibacterial polyethylene foam and preparation method thereof |
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