CN112225955A - High-toughness anti-bite wear-resistant pet chew toy rubber compound and preparation method thereof - Google Patents
High-toughness anti-bite wear-resistant pet chew toy rubber compound and preparation method thereof Download PDFInfo
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- C—CHEMISTRY; METALLURGY
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L7/00—Compositions of natural rubber
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
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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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C—CHEMISTRY; METALLURGY
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- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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Abstract
The invention relates to the technical field of high polymer materials, in particular to a high-toughness anti-bite wear-resistant pet chew toy rubber compound and a preparation method thereof, wherein the rubber compound comprises the following raw materials in parts by weight: 70-90 parts of natural rubber, 10-30 parts of ethylene-octene block copolymer, 20-40 parts of inorganic filler, 1.5-3.5 parts of vulcanizing agent, 0.8-2 parts of accelerator, 0.5-2 parts of stearic acid, 1-3 parts of antioxidant and 3-10 parts of synergistic additive. The high-toughness anti-bite wear-resistant pet chew toy rubber compound has the advantages that the wear-resistant pet chew toy has excellent toughness, anti-bite property, wear resistance and aging resistance, the service life is long, and the comprehensive performance is excellent; the preparation method is simple and efficient, low in production cost, high in production efficiency, convenient to operate and control, beneficial to industrial production and stable in performance of the prepared product.
Description
Technical Field
The invention relates to the technical field of pets, in particular to a high-toughness anti-bite wear-resistant pet chew toy rubber compound and a preparation method thereof.
Background
With the development of society and the improvement of living standard of people, more and more people begin to raise pets, and pet products are increasingly widely applied, and the market of the pet products is continuously expanded. A pet chew is a toy for a pet to play with, and is typically made of a resilient rubber material. However, the pet chew toys on the market at present have the defects of low toughness, poor bite resistance and wear resistance and short service life, and are to be further improved.
Disclosure of Invention
In order to overcome the disadvantages and shortcomings of the prior art, an object of the present invention is to provide a pet chew toy compound and a method for preparing the same, wherein the abrasion resistant pet chew toy has excellent toughness, anti-biting property and abrasion resistance, and a long service life.
The invention also aims to provide a preparation method of the high-toughness anti-bite abrasion-resistant pet chew toy rubber compound, which is simple to operate, convenient to control, high in production efficiency and beneficial to industrial production.
One of the purposes of the invention is realized by the following technical scheme:
a high-toughness anti-bite wear-resistant pet chew toy rubber compound comprises the following raw materials in parts by weight:
the high-toughness anti-bite wear-resistant pet chew toy rubber compound is prepared by taking natural rubber and ethylene-octene block copolymer as main materials, and matching with inorganic filler, vulcanizing agent, accelerator, stearic acid, antioxidant, synergistic assistant and the like, and the raw materials have good compatibility, so that the prepared high-toughness anti-bite wear-resistant pet chew toy rubber compound has the advantages of excellent toughness, anti-bite property, wear resistance and aging resistance, long service life and excellent comprehensive performance. The natural rubber of the present invention is an elastic solid obtained by subjecting a natural latex collected from a Brazilian rubber tree to a processing step such as coagulation and drying. Natural rubber is a natural polymer compound containing cis-1, 4-polyisoprene as a main component, and has a rubber hydrocarbon (cis-1, 4-polyisoprene) content of 90% or more, and also contains a small amount of proteins, fatty acids, sugars, ash, and the like. The ethylene-octene segmented copolymer is matched with raw materials such as natural rubber, so that the pet chew toy rubber compound has good elasticity, wear resistance and excellent processing performance, and the service life of the pet chew toy rubber compound is prolonged. The ethylene-octene block copolymer is preferably, but not limited to, DOW OBC INFUSE 9100.
Further, the inorganic filler is at least one of calcium carbonate, talcum powder and white carbon black. The particle size of the inorganic filler is 100nm-5 mu m. By adopting the filler, the mechanical property, the wear resistance and the anti-biting property of the pet chew toy rubber compound can be improved. Preferably, the filler consists of calcium carbonate, talcum powder, argil and white carbon black according to the weight ratio of 1-1.5: 1-2: 1. According to the invention, the inorganic filler is added into the pet chew toy rubber compound, so that the production cost can be partially reduced, the surface smoothness and the size stability of the product are improved, and the mechanical property, the wear resistance and the anti-biting property of the pet chew toy rubber compound are improved; the inorganic filler with the particle size can increase the specific surface area and the surface adsorption capacity, improve the dispersion effect and improve the comprehensive performance of the product.
Further, the antioxidant is at least one of antioxidant BHT, antioxidant 168, antioxidant 1010 and antioxidant SPC. By adopting the antioxidant, the thermal degradation and oxidative degradation of the rubber compound can be effectively inhibited, the surface smoothness is improved, the antioxidant effect can be kept for a long time, and the service life of the rubber compound is prolonged.
Further, the vulcanizing agent is at least one of 1, 1-di-tert-butyl peroxy-3, 3, 5-trimethylcyclohexane, dicumyl peroxide and di-tert-butylperoxyisopropyl benzene. Furthermore, the vulcanizing agent is prepared from 1, 1-di-tert-butyl peroxy-3, 3, 5-trimethylcyclohexane, dicumyl peroxide and di-tert-butylperoxyisopropyl benzene according to the weight ratio of 1: 0.6-1.2: 0.5-0.8. The vulcanizing agent is adopted and the dosage of the vulcanizing agent is controlled, so that the vulcanizing agent has good vulcanizing activity and can endow the rubber compound with excellent aging resistance and mechanical property.
Further, the accelerator is at least one of N-cyclohexyl-2-benzothiazyl sulfenamide, zinc dibenzyl dithiocarbamate and 2, 2' -dithiodibenzothiazole. Further, the accelerator consists of N-cyclohexyl-2-benzothiazyl sulfenamide and zinc dibenzyl dithiocarbamate according to the weight ratio of 1: 0.8-1.5. The invention adopts the accelerant and the vulcanizing agent to be matched, thereby having quick promotion effect on vulcanization and improving the processing performance and the mechanical strength of the rubber compound.
Further, the synergistic auxiliary agent is composed of the following raw materials in parts by weight: 12-18 parts of nano zinc oxide, 6-9 parts of polyethylene glycol, 9-12 parts of nitrile rubber and 4-7 parts of PVDF resin. The PVDF resin is preferably but not limited to Akema Kynar PVDF HSV 900. The nitrile rubber is preferably, but not limited to, Langshan (Bayer) nitrile rubber 3445F. By adopting the synergistic additive, the invention can improve the mechanical property, the wear resistance, the anti-biting property and the weather resistance of the pet chew toy rubber compound. The zinc oxide and the polyethylene glycol can improve the fluidity and the anti-oxidation capacity, increase the tensile strength and the impact resistance of the rubber compound, generate an accelerator zinc salt which is soluble in the rubber compound under the action of stearic acid, can promote vulcanization, are matched with the nitrile rubber and the PVDF resin, further improve the weather resistance, the wear resistance and the toughness of the rubber compound, and prolong the service life of the rubber compound.
The invention also provides a preparation method of the high-toughness anti-bite wear-resistant pet chew toy rubber compound, which comprises the following steps:
(1) mixing natural rubber, ethylene-octene segmented copolymer and inorganic filler in parts by weight, and plasticating to obtain a mixture A;
(2) placing the obtained mixture A into a mixing roll for mixing, adding a vulcanizing agent, an accelerator, stearic acid, an antioxidant and a synergistic additive, mixing and then mixing to obtain a mixture B;
(3) and putting the obtained mixture B into a mold of a vulcanization molding machine for vulcanization to obtain the high-toughness anti-biting wear-resistant pet chew toy rubber compound.
Further, in the step (1), the plastication temperature is 115-125 ℃, and the plastication time is 10-15 min.
Further, in the step (2), the first mixing is carried out at a mixing temperature of 110-120 ℃ for 10-15 min; standing for 20-24h, and mixing for the second time at 60-80 deg.C for 8-12 min.
Further, in the step (3), the vulcanization molding temperature is 150-160 ℃, and the vulcanization time is 10-15 min.
According to the invention, through strictly controlling the process steps and process parameters of the preparation method of the high-toughness anti-bite wear-resistant pet chew toy rubber master batch, the pet chew toy rubber master batch has good appearance, and all parts of the product have stable and uniform performance, excellent toughness, anti-bite performance and wear resistance, and long service life. The preparation method is simple and efficient, is convenient to operate and control, and is beneficial to industrial production.
The invention has the beneficial effects that: the high-toughness anti-bite wear-resistant pet chew toy rubber compound is prepared by taking natural rubber and ethylene-octene block copolymer as main materials, and matching with inorganic filler, vulcanizing agent, accelerator, stearic acid, antioxidant, synergistic assistant and the like, and the raw materials have good compatibility, so that the prepared high-toughness anti-bite wear-resistant pet chew toy rubber compound has the advantages of excellent toughness, anti-bite property, wear resistance and aging resistance of a wear-resistant pet chew toy, long service life and excellent comprehensive performance; the preparation method is simple and efficient, low in production cost, high in production efficiency, convenient to operate and control, beneficial to industrial production and stable in performance of the prepared product.
Detailed Description
The present invention will be further described with reference to the following examples for facilitating understanding of those skilled in the art, and the description of the embodiments is not intended to limit the present invention.
Example 1
A high-toughness anti-bite wear-resistant pet chew toy rubber compound comprises the following raw materials in parts by weight: 85 parts of natural rubber, 15 parts of ethylene-octene block copolymer, 25 parts of inorganic filler, 2 parts of vulcanizing agent, 1 part of accelerator, 1.5 parts of stearic acid, 2 parts of antioxidant and 12 parts of synergistic assistant.
Further, the ethylene-octene block copolymer is preferably, but not limited to, DOW OBC inf 9100.
Furthermore, the filler is composed of calcium carbonate, talcum powder and white carbon black according to the weight ratio of 1-1.5: 1-2: 1. The particle size of the inorganic filler is 100nm-5 mu m.
Further, the antioxidant consists of antioxidant BHT, antioxidant 168 and antioxidant SPC according to the weight ratio of 2: 1.
Further, the vulcanizing agent is prepared from 1, 1-di-tert-butyl peroxy-3, 3, 5-trimethylcyclohexane, dicumyl peroxide and di-tert-butylperoxyisopropyl benzene according to the weight ratio of 1: 0.6. The accelerant consists of N-cyclohexyl-2-benzothiazyl sulfenamide and zinc dibenzyl dithiocarbamate according to the weight ratio of 1: 1.
Further, the synergistic auxiliary agent is composed of the following raw materials in parts by weight: 15 parts of nano zinc oxide, 8 parts of polyethylene glycol, 11 parts of nitrile rubber and 5 parts of PVDF resin, wherein the PVDF resin is preferably but not limited to Acoma Kynar PVDF HSV 900. The nitrile rubber is preferably, but not limited to, Langshan (Bayer) nitrile rubber 3445F.
The preparation method of the high-toughness anti-bite wear-resistant pet chew toy rubber compound comprises the following steps:
(1) mixing natural rubber, ethylene-octene segmented copolymer and inorganic filler in parts by weight, and plasticating to obtain a mixture A;
(2) placing the obtained mixture A into a mixing roll for mixing, adding a vulcanizing agent, an accelerator, stearic acid, an antioxidant, a synergistic additive and the like, mixing and then mixing to obtain a mixture B;
(3) and putting the obtained mixture B into a mold of a vulcanization molding machine for vulcanization to obtain the high-toughness anti-biting wear-resistant pet chew toy rubber compound.
Further, in the step (1), the plastication temperature is 115 ℃, and the plastication time is 15 min.
Further, in the step (2), the first mixing is carried out at a mixing temperature of 110 ℃ for 10 min; standing for 22h, and performing second mixing at 75 deg.C for 9 min.
Further, in the step (3), the vulcanization molding temperature is 150 ℃, and the vulcanization time is 15 min.
Example 2
A high-toughness anti-bite wear-resistant pet chew toy rubber compound comprises the following raw materials in parts by weight: 80 parts of natural rubber, 10 parts of ethylene-octene block copolymer, 20 parts of inorganic filler, 1.5 parts of vulcanizing agent, 0.8 part of accelerator, 1 part of stearic acid, 1.5 parts of antioxidant and 8 parts of synergistic additive.
Furthermore, the filler is composed of calcium carbonate, talcum powder and white carbon black according to the weight ratio of 1: 1. The particle size of the inorganic filler is 50-90 nm.
Further, the antioxidant is composed of antioxidant BHT, antioxidant 168 and antioxidant 1010 according to the weight ratio of 1: 2.
Further, the vulcanizing agent is prepared from 1, 1-di-tert-butyl peroxy-3, 3, 5-trimethylcyclohexane, dicumyl peroxide and di-tert-butylperoxyisopropyl benzene according to the weight ratio of 1: 0.6: 0. The accelerant consists of N-cyclohexyl-2-benzothiazyl sulfenamide and zinc dibenzyl dithiocarbamate according to the weight ratio of 1: 0.8.
Further, the synergistic auxiliary agent is composed of the following raw materials in parts by weight: 12 parts of nano zinc oxide, 6 parts of polyethylene glycol, 9 parts of nitrile rubber and 4 parts of PVDF resin.
The preparation method of the high-toughness anti-bite wear-resistant pet chew toy rubber compound comprises the following steps:
(1) mixing natural rubber, ethylene-octene segmented copolymer and inorganic filler in parts by weight, and plasticating to obtain a mixture A;
(2) placing the obtained mixture A into a mixing roll for mixing, adding a vulcanizing agent, an accelerator, stearic acid, an antioxidant and a synergistic additive, mixing and then mixing to obtain a mixture B;
(3) and putting the obtained mixture B into a mold of a vulcanization molding machine for vulcanization to obtain the high-toughness anti-biting wear-resistant pet chew toy rubber compound.
Further, in the step (1), the plastication temperature is 120 ℃, and the plastication time is 15 min.
Further, in the step (2), the first mixing is carried out at the mixing temperature of 115 ℃ for 13 min; standing for 20h, and performing second mixing at 80 deg.C for 12 min.
Further, in the step (3), the vulcanization molding temperature is 155 ℃, and the vulcanization time is 12 min.
The rest of this embodiment is the same as embodiment 1, and is not described herein again.
Example 3
A high-toughness anti-bite wear-resistant pet chew toy rubber compound comprises the following raw materials in parts by weight: 90 parts of natural rubber, 20 parts of ethylene-octene block copolymer, 8 parts of inorganic filler, 3.5 parts of vulcanizing agent, 1.5 parts of accelerator, 2 parts of stearic acid, 2.5 parts of antioxidant and 16 parts of synergistic additive.
Furthermore, the filler is composed of calcium carbonate, talcum powder and white carbon black according to the weight ratio of 1.5: 2: 1. The particle size of the inorganic filler is 50-90 nm.
Further, the vulcanizing agent is prepared from 1, 1-di-tert-butyl peroxy-3, 3, 5-trimethylcyclohexane, dicumyl peroxide and di-tert-butylperoxyisopropyl benzene according to the weight ratio of 1: 1.2: 0.8. The accelerant consists of N-cyclohexyl-2-benzothiazyl sulfenamide and zinc dibenzyl dithiocarbamate according to the weight ratio of 1: 1.5.
Further, the synergistic auxiliary agent is composed of the following raw materials in parts by weight: 18 parts of nano zinc oxide, 9 parts of polyethylene glycol, 12 parts of nitrile rubber and 7 parts of PVDF resin.
The preparation method of the high-toughness anti-bite wear-resistant pet chew toy rubber compound comprises the following steps:
(1) mixing natural rubber, ethylene-octene segmented copolymer and inorganic filler in parts by weight, and plasticating to obtain a mixture A;
(2) placing the obtained mixture A into a mixing roll for mixing, adding a vulcanizing agent, an accelerator, stearic acid, an antioxidant and a synergistic additive, mixing and then mixing to obtain a mixture B;
(3) and putting the obtained mixture B into a mold of a vulcanization molding machine for vulcanization to obtain the high-toughness anti-biting wear-resistant pet chew toy rubber compound.
Further, in the step (1), the plastication temperature is 115 ℃, and the plastication time is 13 min.
Further, in the step (2), the first mixing is carried out at a mixing temperature of 110 ℃ for 10 min; and standing for 24h, and then performing second mixing at the mixing temperature of 65 ℃ for 9 min.
Further, in the step (3), the vulcanization molding temperature is 160 ℃, and the vulcanization time is 10 min.
The rest of this embodiment is the same as embodiment 1, and is not described herein again.
Example 4
A high-toughness anti-bite wear-resistant pet chew toy rubber compound comprises the following raw materials in parts by weight:
88 parts of natural rubber, 16 parts of ethylene-octene block copolymer, 5 parts of inorganic filler, 2.5 parts of vulcanizing agent, 1.3 parts of accelerator, 1.8 parts of stearic acid, 1.8 parts of antioxidant and 10 parts of synergistic assistant.
Furthermore, the filler is composed of calcium carbonate, talcum powder and white carbon black according to the weight ratio of 1.5: 1. The particle size of the inorganic filler is 50-90 nm.
Further, the vulcanizing agent is prepared from 1, 1-di-tert-butyl peroxy-3, 3, 5-trimethylcyclohexane, dicumyl peroxide and di-tert-butylperoxyisopropyl benzene according to the weight ratio of 1: 0.8: 0.6. The accelerant consists of N-cyclohexyl-2-benzothiazyl sulfenamide and zinc dibenzyl dithiocarbamate according to the weight ratio of 1: 0.9.
Further, the synergistic auxiliary agent is composed of the following raw materials in parts by weight: 12-18 parts of nano zinc oxide, 6-9 parts of polyethylene glycol, 9-12 parts of nitrile rubber and 4-7 parts of PVDF resin.
The preparation method of the high-toughness anti-bite wear-resistant pet chew toy rubber compound comprises the following steps:
(1) mixing natural rubber, ethylene-octene segmented copolymer and inorganic filler in parts by weight, and plasticating to obtain a mixture A;
(2) placing the obtained mixture A into a mixing roll for mixing, adding a vulcanizing agent, an accelerator, stearic acid, an antioxidant and a synergistic additive, mixing and then mixing to obtain a mixture B;
(3) and putting the obtained mixture B into a mold of a vulcanization molding machine for vulcanization to obtain the high-toughness anti-biting wear-resistant pet chew toy rubber compound.
The rest of this embodiment is the same as embodiment 1, and is not described herein again.
Comparative example 1
This comparative example differs from example 1 in that: this comparative example did not contain an ethylene-octene block copolymer and a coagent. The remainder of this comparative example is the same as example 1 and will not be described further here
The results of performance tests on the high toughness, anti-bite, abrasion resistant pet chew toy mixes of examples 1-4 and comparative example 1 are as follows: the tensile properties and elongation at break were tested in accordance with GB/T528-2009, at a tensile rate of 500mm min-1(ii) a The thermal-oxidative aging is carried out according to GB/T3512-2014 (treatment at 100 ℃ for 48 h). The results of the performance tests are shown in the following table:
the pet chew toy compound was tested according to the rubber abrasion test in accordance with GB/1689: abrasion test Using an Arclone abrasion machine model MZ-4061, the test results are shown in the following table:
| test items | Example 1 | Example 2 | Example 3 | Example 4 | Comparative example 1 |
| Amount of wear (g) | 0.12 | 0.11 | 0.12 | 0.13 | 0.17 |
In conclusion, the high-toughness anti-bite wear-resistant pet chew toy rubber compound prepared by the invention has the advantages that the wear-resistant pet chew toy has excellent toughness, anti-bite property, wear resistance and aging resistance, the service life is long, and the comprehensive performance is excellent; the preparation method is simple and efficient, low in production cost, high in production efficiency, convenient to operate and control, beneficial to industrial production and stable in performance of the prepared product.
The above-described embodiments are preferred implementations of the present invention, and the present invention may be implemented in other ways without departing from the spirit of the present invention.
Claims (10)
1. The utility model provides a wear-resisting pet chew toy elastomeric compound of high tenacity anti-bite, which characterized in that: the feed comprises the following raw materials in parts by weight:
70-90 parts of natural rubber
10-30 parts of ethylene-octene block copolymer
20-40 parts of inorganic filler
1.5 to 3.5 portions of vulcanizing agent
0.8-2 parts of accelerator
0.5-2 parts of stearic acid
1-3 parts of antioxidant
8-16 parts of a synergistic additive.
2. A high toughness, anti-bite, abrasion resistant pet chew toy mix as claimed in claim 1 wherein: the inorganic filler is at least one of calcium carbonate, talcum powder and white carbon black.
3. A high toughness, anti-bite, abrasion resistant pet chew toy mix as claimed in claim 1 wherein: the particle size of the inorganic filler is 100nm-5 mu m.
4. A high toughness, anti-bite, abrasion resistant pet chew toy mix as claimed in claim 1 wherein: the antioxidant is at least one of antioxidant BHT, antioxidant 168, antioxidant 1010 and antioxidant SPC.
5. A high toughness, anti-bite, abrasion resistant pet chew toy mix as claimed in claim 1 wherein: the vulcanizing agent is at least one of 1, 1-di-tert-butyl peroxy-3, 3, 5-trimethylcyclohexane, dicumyl peroxide and di-tert-butylperoxyisopropyl benzene.
6. A high toughness, anti-bite, abrasion resistant pet chew toy mix as claimed in claim 1 wherein: the accelerant is at least one of N-cyclohexyl-2-benzothiazyl sulfenamide, zinc dibenzyl dithiocarbamate and 2, 2' -dithiodibenzothiazyl.
7. A process for the preparation of a high toughness, anti-bite, abrasion resistant pet chew toy mix as claimed in any one of claims 1 to 6 wherein: the method comprises the following steps:
(1) mixing natural rubber, ethylene-octene segmented copolymer and inorganic filler in parts by weight, and plasticating to obtain a mixture A;
(2) placing the obtained mixture A into a mixing roll for mixing rubber, and then adding a vulcanizing agent, an accelerator,
Mixing stearic acid, an antioxidant and a synergistic additive, and then mixing to obtain a mixture B;
(3) and putting the obtained mixture B into a mold of a vulcanization molding machine for vulcanization to obtain the high-toughness anti-biting wear-resistant pet chew toy rubber compound.
8. The method of claim 7 for preparing a high toughness, anti-bite, abrasion resistant pet chew toy mix, characterized in that: in the step (1), the plastication temperature is 115-125 ℃, and the plastication time is 10-15 min.
9. The method of claim 7 for preparing a high toughness, anti-bite, abrasion resistant pet chew toy mix, characterized in that: in the step (2), the first mixing is carried out at the mixing temperature of 110-120 ℃ for 10-15 min; standing for 20-24h, and mixing for the second time at 60-80 deg.C for 8-12 min.
10. The method of claim 7 for preparing a high toughness, anti-bite, abrasion resistant pet chew toy mix, characterized in that: in the step (3), the vulcanization molding temperature is 150-160 ℃, and the vulcanization time is 10-15 min.
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