Peristaltic pump pipe and preparation method thereof

Abstract

The invention relates to the technical field of organic silicon polymer materials, in particular to a peristaltic pump pipe and a preparation method thereof. The peristaltic pump pipe is prepared from the following raw materials in parts by weight: 0 to 30 parts of 1 # methyl vinyl silica gel, 45 to 55 parts of 2 # methyl vinyl silica gel, 8 to 12 parts of 3 # methyl vinyl silica gel, 15 to 50 parts of 4 # methyl vinyl silica gel, 30 to 40 parts of fumed silica, 3 to 5 parts of hydroxyl silicone oil, 0.5 to 1 part of hydrogen-containing silicone oil, 0.6 to 0.8 part of platinum vulcanizing agent A and 0.8 to 1.2 parts of platinum vulcanizing agent B, the service life of the silicone rubber peristaltic pump pipe is prolonged.

Description

Technical Field

[0001] The present application relates to the technical field of organic silicon polymer materials, and in particular to a peristaltic pump tube and a preparation method thereof. Background Art

[0002] Peristaltic pump hose is an important accessory of peristaltic pump, mainly used in food and medical industries, specifically for fluid transportation of peristaltic pump, inspection and analysis of chemicals, drug production transportation and sampling, and food and beverage transportation. The existing peristaltic pump tubes are mainly made of rubber, plastic, synthetic materials, silicone rubber, etc. However, rubber has insufficient temperature resistance, is prone to aging, and is not suitable for high temperature and long-term use; plastics and synthetic materials have poor elasticity, high precipitates, short service life, and can only be used in industries with lower requirements except food and medical; while silicone rubber has excellent weather resistance, temperature resistance and biocompatibility, which makes the use of silicone rubber peristaltic pump tubes gradually increase.

[0003] However, silicone rubber has insufficient wear resistance, which causes the inner wall of the pipe to be damaged by friction due to the extrusion of the peristaltic pump during use. The worn silicone particles precipitate and contaminate the fluid, resulting in a shorter life of the pipe. The pipe needs to be replaced frequently during use, which increases production costs and reduces production efficiency. Summary of the invention

[0004] In order to increase the service life of a silicone rubber peristaltic pump tube, the present application provides a peristaltic pump tube and a preparation method thereof.

[0005] In a first aspect, the present application provides a peristaltic pump tube, which adopts the following technical solution: A peristaltic pump tube, comprising the following raw materials in parts by weight: 0-30 parts of 1# methyl vinyl silicone, 45-55 parts of 2# methyl vinyl silicone, 8-12 parts of 3# methyl vinyl silicone, 15-50 parts of 4# methyl vinyl silicone, 30-40 parts of fumed silica, 3-5 parts of hydroxy silicone oil, 0.5-1 part of hydrogen-containing silicone oil, 0.6-0.8 parts of platinum vulcanizing agent A and 0.8-1.2 parts of platinum vulcanizing agent B; the platinum vulcanizing agent A is a platinum complex, and the platinum vulcanizing agent B is a mixture of hydrogen-containing silicone oil and an inhibitor; Among them, the molar content of vinyl in 1# methyl vinyl silica gel is 0.19-0.24%, and the molecular weight is 600,000; the molar content of vinyl in 2# methyl vinyl silica gel is 0.13-0.18%, and the molecular weight is 600,000; the molar content of vinyl in 3# methyl vinyl silica gel is 4.96-5.04%, and the molecular weight is 600,000; the molar content of vinyl in 4# methyl vinyl silica gel is 0.03-0.04%, and the molecular weight is 1.1 million.

[0006] By adopting the above technical scheme, by compounding vinyl silicones with different vinyl contents and different molecular weights, the crosslinking density inside the silicone rubber system can be improved, the use stability of the peristaltic pump tube can be improved, and the service life of the peristaltic pump tube can be effectively improved.

[0007] Preferably, it comprises the following raw materials in parts by weight: 25 parts of 1# methyl vinyl silicone, 50 parts of 2# methyl vinyl silicone, 10 parts of 3# methyl vinyl silicone, 15 parts of 4# methyl vinyl silicone, 30 parts of fumed silica, 5 parts of hydroxy silicone oil, 1 part of hydrogen-containing silicone oil, 0.6 parts of platinum vulcanizer A and 1.2 parts of platinum vulcanizer B.

[0008] By adopting the above technical solution and optimizing the ratio of each raw material, the life of the peristaltic pump tube can be further improved, so that its life can reach 610 hours, which is more than 3 times that of the peristaltic pump tube on the market.

[0009] Preferably, the fumed silica is modified fumed silica, which is prepared by reacting fumed silica with a double-bond-containing silane coupling agent.

[0010] By adopting the above technical scheme, the surface of the fumed silica is modified so that its surface contains double bonds, which can enable it to participate in the cross-linking reaction of the silicone rubber, thereby improving the compatibility between the fumed silica and the system and the cross-linking degree of the silicone rubber, thereby greatly improving the stability of the peristaltic pump tube, greatly increasing its service life, and also improving its mechanical strength.

[0011] Preferably, the fumed silica is modified fumed silica, and the preparation method of the modified fumed silica is as follows: S1, using ethanol aqueous solution as solvent, adding 4-6 parts by weight of fumed silica and 8-12 parts by weight of aminosilane coupling agent, heating to 70-85° C., stirring and reacting for 20-28 hours, to obtain fumed silica grafted silane coupling agent; S2. Add the fumed silica grafted silane coupling agent of S1 into DMF, then add 55-65 parts by weight of terminal carboxyl hyperbranched polyester, 0.6-1.0 parts by weight of 4-dimethylaminopyridine and 0.6-1.0 parts by weight of N,N-dicyclohexylcarbodiimide, raise the temperature to 90-100°C, stir and react for 20-26 hours, then continue to add 30-45 parts by weight of amino acrylate, stir and react for 13-24 hours to obtain modified fumed silica.

[0012] By adopting the above technical scheme, a silane coupling agent is grafted on the surface of fumed silica, and then the amino group on the silane coupling agent is connected with the terminal carboxyl hyperbranched polyester through an amide reaction, and then reacted with amino acrylate, so that the gas phase surface contains more double bonds. By grafting hyperbranched polyester on fumed silica, and then reacting at the end of its branch chain to obtain double bonds, the interfacial tension between fumed silica and the silicone rubber system can be greatly reduced, so that it has extremely high compatibility with the system, and the hyperbranched polyester, as a hyperbranched molecule, has an extremely low viscosity, which can increase the distance between fumed silica particles, improve its dispersibility, and also increase the double bond content on its surface, so that it can be used as a cross-linking center in the silicone rubber, greatly improving the cross-linking degree of the silicone rubber, and further improving the service life and physical properties of the peristaltic pump tube.

[0013] Preferably, the aminosilane coupling agent is one or more of aminopropyltriethoxysilane, N-aminoethyl-γ-aminopropyltrimethoxysilane, N-(β-aminoethyl)-γ-aminopropylmethyldimethoxysilane, 3-aminopropyltrimethoxysilane, and anilinemethyltriethoxysilane.

[0014] By adopting the above technical solutions, although not explored one by one in the embodiments, the technical effects of the present application can be obtained in theory.

[0015] Preferably, the average molecular weight of the carboxyl-terminated hyperbranched polyester is ≤6400.

[0016] By adopting the above technical solution, the molecular weight of the carboxyl-terminated hyperbranched polyester should not be too large. If the molecular weight is too large, multiple fumed silica particles will easily react with the same carboxyl-terminated hyperbranched polyester, causing the fumed silica to agglomerate.

[0017] As a preference: the specific surface area of ​​the fumed silica is 200-300m 2 / g.

[0018] In a second aspect, the present application provides a method for preparing a peristaltic pump tube, using the following technical solution: A method for preparing a peristaltic pump tube comprises the following steps: S1. Add 1# methyl vinyl silica gel, 2# methyl vinyl silica gel, 3# methyl vinyl silica gel, 4# methyl vinyl silica gel, hydroxy silicone oil and hydrogen-containing silicone oil into a vacuum kneader and mix them evenly in the kneader; S2, continue to add fumed silica or modified fumed silica in several times, after adding, stir and knead at a temperature of 65-75 ° C to form a mass, and continue to knead for 10-30 minutes after forming a mass to obtain a rubber material; S3, heating the rubber obtained in S2 to 110-130°C, mixing under vacuum for 0.5-1.5h, cooling and allowing to stand to obtain a primary mixed rubber, and performing secondary mixing under the same conditions to obtain a secondary mixed rubber; S4. The secondary mixed rubber and platinum vulcanizer B are evenly mixed in an open mill, and then mixed with platinum vulcanizer A in an open mill, and then vulcanized at 160-170°C for 10-20min, and then vulcanized at 190-210°C for 1.5-2.5h, and extruded through an extruder to obtain a peristaltic pump tube.

[0019] By adopting the above technical scheme, the preparation method of the present application is relatively conventional, has a high tolerance for process parameters, and the qualified rate of the peristaltic pump tubes obtained is 98% or above, which is suitable for large-scale production in factories.

[0020] In summary, the present application includes at least one of the following beneficial technical effects: 1. By compounding vinyl silicones with different vinyl contents and different molecular weights, the cross-linking density inside the silicone rubber system can be improved, the stability of the peristaltic pump tube can be improved, and the service life of the peristaltic pump tube can be effectively prolonged.

[0021] 2. By grafting hyperbranched polyester onto fumed silica and then reacting at the end of its branch chain to obtain double bonds, the interfacial tension between fumed silica and the silicone rubber system can be greatly reduced, making it highly compatible with the system. In addition, as a hyperbranched molecule, the hyperbranched polyester has an extremely low viscosity, which can increase the distance between fumed silica particles and improve its dispersibility. It can also increase the double bond content on its surface, so that it can serve as a cross-linking center in the silicone rubber, greatly improving the cross-linking degree of the silicone rubber, and further improving the service life and physical properties of the peristaltic pump tube.

[0022] 3. In the physical property test of the peristaltic pump tube prepared in the present application, the hardness is between 54-69 Shore A; the tensile strength is between 6.3-12.0MPa; the elongation at break is between 214-407%; the tear strength is between 21.2-45.8kN / m; at the same time, the rebound rate can reach 62-78%; the flow retention rate is good, and the service life is more than 410h, and the highest can reach 681h. In the test process, no broken particles of the peristaltic pump tube prepared in the present application were found; it shows that the peristaltic pump tube prepared in the present application has excellent physical properties, and greatly improves the service life, flow retention rate and safety of the silicone rubber peristaltic pump tube. DETAILED DESCRIPTION

[0023] The present application is further described in detail below in conjunction with the specific contents.

[0024] The raw materials used in the preparation examples and embodiments of the present application are all purchased from the market, wherein the platinum vulcanizer is a two-component silicone rubber platinum vulcanizer, including platinum vulcanizer A and platinum vulcanizer B, model PC-100, platinum vulcanizer A is a platinum complex, specifically divinyltetramethyldisiloxane platinum complex, with an effective substance content of ≥99.0%; the effective substances of platinum vulcanizer B are hydrogen-containing silicone oil and inhibitor, with an effective substance content of ≥98%, and the weight ratio of hydrogen-containing silicone oil to inhibitor is 7:3, wherein the hydrogen-containing silicone oil has a viscosity of 20 mm 2 / s, with a hydrogen content of 1.4-1.55%; the inhibitor is triacetylphosphonic acid, purchased from Ningbo Zhenhai Weiqi Rubber & Plastic Technology Co., Ltd., which is a customized product; the fumed silica has a specific surface area of ​​200-300m 2 / g, the specific surface area of ​​the fumed silica used in the examples of the present application is 200 m 2 / g; hydroxy silicone oil has a viscosity of 29.8 mm 2 / S, hydroxyl content 6-9%; hydrogen silicone oil has a viscosity of 24 mm 2 / S, hydrogen content is 1.55-1.65%.

[0025] Preparation Example 1 A modified fumed silica, the preparation method of which is as follows: S1. Add 5 g of fumed silica and 10 g of aminopropyltriethoxysilane to 100 g of ethanol aqueous solution, where the ethanol aqueous solution is a mixed solution of ethanol and water in a volume ratio of 1:1, heat to 75° C., stir to react for 24 hours, filter, wash, and dry to obtain a fumed silica grafted silane coupling agent; S2. Add the fumed silica grafted silane coupling agent of S1 into 200 mL of DMF, then stir and disperse, then add 60 g of terminal carboxyl hyperbranched polyester, 0.8 g of 4-dimethylaminopyridine (DMAP) and 0.8 g of N,N-dicyclohexylcarbodiimide (DCC), the model of the terminal carboxyl hyperbranched polyester is HyPer C101, the molecular weight is 2600, and the number of carboxyl groups is 12 / mol. Heat to 95°C, stir and react for 24 hours, then continue to add 40 g of methyl aminoacrylate, stir and react for 15 hours, filter, wash and dry to obtain modified fumed silica.

[0026] Preparation Example 2 A modified fumed silica, the preparation method of which is as follows: Add 5 g of fumed silica and 10 g of vinyltriethoxysilane to 100 g of ethanol aqueous solution, where the ethanol aqueous solution is a mixed solution of ethanol and water in a volume ratio of 1:1, heat to 75°C, stir to react for 24 hours, filter, wash and dry to obtain modified fumed silica.

[0027] Example Embodiment 1-4, A peristaltic pump tube, the raw materials and the amounts of the raw materials are shown in Table 1, and the preparation method is as follows: S1. According to the dosage in Table 1, 1# methyl vinyl silica gel, 2# methyl vinyl silica gel, 3# methyl vinyl silica gel, 4# methyl vinyl silica gel, hydroxy silicone oil and hydrogen-containing silicone oil were added to a vacuum kneader and mixed evenly in the kneader; wherein the molar content of vinyl in 1# methyl vinyl silica gel is 0.19-0.24%, and the molecular weight is 600,000; the molar content of vinyl in 2# methyl vinyl silica gel is 0.13-0.18%, and the molecular weight is 600,000; the molar content of vinyl in 3# methyl vinyl silica gel is 4.96-5.04%, and the molecular weight is 600,000; the molar content of vinyl in 4# methyl vinyl silica gel is 0.03-0.04%, and the molecular weight is 1.1 million; S2, continue to add fumed silica, the fumed silica is added in four times, calculated by mass, the addition amount is 25%, 25%, 25%, 25% in sequence, after the addition is completed, under normal pressure and temperature of 70 ° C, stir and knead to form a mass, and continue to knead for 20 minutes after the mass is formed to obtain a rubber material; S3, heating the rubber obtained in S2 to 120°C, mixing for 1 hour under a vacuum degree of -0.9 MPa, and then cooling and standing for 24 hours to obtain a primary mixed rubber; S4, heating the primary rubber mix to 110°C, mixing for 1 hour under a vacuum degree of -0.9 MPa, and then cooling naturally to obtain a secondary rubber mix; S5. The secondary mixed rubber and platinum vulcanizer B are evenly mixed in an open mill, and then evenly mixed with platinum vulcanizer A in an open mill. First, vulcanize at 165°C for 15 minutes, then vulcanize at 200°C for 2 hours, and then extrude through an extruder. The extruded peristaltic pump tube is No. 17, with an inner diameter of 6.4mm, an outer diameter of 9.6mm, and a wall thickness of 1.6mm; the extrusion temperature is 600°C for the first section, 300°C for the second section, and 200°C for the third section; the peristaltic pump tube is subjected to a secondary vulcanization at 150°C for 2 hours to obtain an ultra-long-life silicone peristaltic pump tube.

[0028] Table 1 Raw materials and their usage in Examples 1-4 (kg)

[0029] Example 5 A peristaltic pump tube, which is different from Example 1 in that its fumed silica is replaced by an equal mass of modified fumed silica, the modified fumed silica comes from Preparation Example 1, and the remaining steps are the same as Example 1.

[0030] Example 6 A peristaltic pump tube, which is different from Example 1 in that its fumed silica is replaced by an equal mass of modified fumed silica, the modified fumed silica comes from Preparation Example 2, and the remaining steps are the same as Example 1.

[0031] Example 7 A peristaltic pump tube, which is different from Example 5 in that the added amount of modified fumed silica is 32.5 kg, and the remaining steps are the same as Example 5.

[0032] Example 8 A peristaltic pump tube, which is different from Example 5 in that the added amount of modified fumed silica is 35 kg, and the remaining steps are the same as Example 5.

[0033] Comparative Example 1 A peristaltic pump tube, which is different from Example 1 in that its 2# vinyl silicone, 3# vinyl silicone and 4# vinyl silicone are all replaced with 1# vinyl silicone of equal mass, and the remaining steps are the same as Example 1.

[0034] Comparative Example 2 A peristaltic pump tube, which is different from Example 1 in that its 1# vinyl silicone, 3# vinyl silicone and 4# vinyl silicone are all replaced with 2# vinyl silicone of equal mass, and the remaining steps are the same as Example 1.

[0035] Comparative Example 3 A peristaltic pump tube, which is different from Example 1 in that its 1# vinyl silicone, 2# vinyl silicone and 4# vinyl silicone are all replaced with 3# vinyl silicone of equal mass, and the remaining steps are the same as Example 1.

[0036] Comparative Example 4 A peristaltic pump tube, which is different from Example 1 in that its 1# vinyl silicone, 2# vinyl silicone and 3# vinyl silicone are all replaced with 4# vinyl silicone of equal mass, and the remaining steps are the same as Example 1.

[0037] Peristaltic pump tubes were prepared according to the preparation methods in Examples 1-8 and Comparative Examples 1-4, and then tested. The test results are shown in Tables 2 and 3.

[0038] The test equipment used for the flow rate retention rate test of the peristaltic pump tube is Langer peristaltic pump WT600-2J, and the pump head is YZ1515x; the test conditions are: continuous water pumping at a speed of 600rpm / min, and a temperature of 23±2℃; the test solution is clean water; the peristaltic pump tube is tested until it is damaged to the point of rupture and leakage, and this is used as the basis for judging the life of the peristaltic pump tube. During the hose test, the test is carried out in a clean water tank. During the test, the hose will have worn particles flowing into the clean water, which will be observed, and the judgment method for the precipitated particles is visual inspection.

[0039] Tensile strength and elongation at break: refer to GBT 528-2009 Determination of tensile stress-strain properties of vulcanized rubber or thermoplastic rubber; Hardness: Refer to GBT 531.1-2008 Vulcanized rubber or thermoplastic rubber indentation hardness test method Part 1: Shore hardness method (Shore hardness); Tear strength: refer to GBT 529-2008 Determination of tear strength of vulcanized rubber or thermoplastic rubber (trouser-shaped, right-angled and crescent-shaped specimens); Rebound rate: Refer to GBT 1681-2009 Determination of rebound elasticity of vulcanized rubber.

[0040] Table 2 Physical property test results of Examples 1-8

[0041] Table 3 Flow rate retention rate of Examples 1-8 and Comparative Examples 1-4

[0042] It can be seen from the test data of Examples 1-8 and Comparative Examples 1-4, as well as Table 2 and Table 3, that in the physical property test of the peristaltic pump tubes prepared in the present application, the hardness is between 54-69 Shore A; the tensile strength is between 6.3-12.0 MPa; the elongation at break is between 214-407%; the tear strength is between 21.2-45.8 kN / m; at the same time, the rebound rate can reach 62-78%; the flow retention rate is good, and the life (damage time) is more than 410h, and the highest can reach 681h, and during the test process, no broken particles of the tube were found in the peristaltic pump tubes prepared in the present application; it shows that the peristaltic pump tubes prepared in the present application have excellent physical properties, and greatly improve the service life, flow retention rate and safety of the silicone rubber peristaltic pump tube.

[0043] It can be seen from the test data of Examples 1-4 and Comparative Examples 1-4 that the service life of the peristaltic pump tube can be effectively improved by compounding vinyl silicone rubbers with different vinyl contents and different molecular weights. On this basis, in combination with Examples 5-6, by surface modification of fumed silica so that its surface contains double bonds, it can participate in the cross-linking reaction of silicone rubber, thereby improving the compatibility between fumed silica and the system and the cross-linking degree of silicone rubber, thereby greatly improving the stability of the peristaltic pump tube, greatly improving its service life, and also improving its mechanical strength.

[0044] Furthermore, by grafting hyperbranched polyester to fumed silica and then reacting at the end of its branch chain to obtain double bonds, the interfacial tension between fumed silica and the silicone rubber system can be greatly reduced, making it highly compatible with the system. Moreover, as a hyperbranched molecule, the hyperbranched polyester has a very low viscosity, which can increase the distance between fumed silica particles and improve its dispersibility. It can also increase the double bond content on its surface, so that it can serve as a crosslinking center in the silicone rubber, greatly improving the crosslinking degree of the silicone rubber. In summary, the modified fumed silica obtained in Preparation Example 1 can further improve the service life and physical properties of the peristaltic pump tube.

[0045] It can be seen from the test data of Example 5 and Examples 7-8 that when the addition amount of the modified fumed silica is 32.5 kg, the peristaltic pump tube has higher economic benefits, and both the service life and mechanical properties are better.

[0046] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A peristaltic pump tube, characterized in that: The invention comprises the following raw materials in parts by weight: 0-30 parts of 1# methyl vinyl silica gel, 45-55 parts of 2# methyl vinyl silica gel, 8-12 parts of 3# methyl vinyl silica gel, 15-50 parts of 4# methyl vinyl silica gel, 30-40 parts of fumed silica, 3-5 parts of hydroxy silicone oil, 0.5-1 part of hydrogen-containing silicone oil, 0.6-0.8 parts of platinum vulcanizing agent A and 0.8-1.2 parts of platinum vulcanizing agent B; the platinum vulcanizing agent A is a platinum complex, and the platinum vulcanizing agent B is a mixture of hydrogen-containing silicone oil and an inhibitor; Among them, the molar content of vinyl in 1# methyl vinyl silica gel is 0.19-0.24%, and the molecular weight is 600,000; the molar content of vinyl in 2# methyl vinyl silica gel is 0.13-0.18%, and the molecular weight is 600,000; the molar content of vinyl in 3# methyl vinyl silica gel is 4.96-5.04%, and the molecular weight is 600,000; the molar content of vinyl in 4# methyl vinyl silica gel is 0.03-0.04%, and the molecular weight is 1.1 million; The fumed silica is modified fumed silica, and the preparation method of the modified fumed silica is as follows: S1, using ethanol aqueous solution as solvent, adding 4-6 parts by weight of fumed silica and 8-12 parts by weight of aminosilane coupling agent, heating to 70-85° C., stirring and reacting for 20-28 hours, to obtain fumed silica grafted silane coupling agent; S2. Add the fumed silica grafted silane coupling agent of S1 into DMF, then add 55-65 parts by weight of terminal carboxyl hyperbranched polyester, 0.6-1.0 parts by weight of 4-dimethylaminopyridine and 0.6-1.0 parts by weight of N,N-dicyclohexylcarbodiimide, raise the temperature to 90-100°C, stir and react for 20-26 hours, then continue to add 30-45 parts by weight of amino acrylate, stir and react for 13-24 hours to obtain modified fumed silica.

2. A peristaltic pump tube according to claim 1, characterized in that: It includes the following raw materials in parts by weight: 25 parts of 1# methyl vinyl silicone, 50 parts of 2# methyl vinyl silicone, 10 parts of 3# methyl vinyl silicone, 15 parts of 4# methyl vinyl silicone, 30 parts of fumed silica, 5 parts of hydroxy silicone oil, 1 part of hydrogen-containing silicone oil, 0.6 parts of platinum vulcanizer A and 1.2 parts of platinum vulcanizer B.

3. A peristaltic pump tube according to claim 1, characterized in that: The aminosilane coupling agent is one or more of aminopropyltriethoxysilane, N-aminoethyl-γ-aminopropyltrimethoxysilane, N-(β-aminoethyl)-γ-aminopropylmethyldimethoxysilane, 3-aminopropyltrimethoxysilane, and anilinemethyltriethoxysilane.

4. A peristaltic pump tube according to claim 1, characterized in that: The average molecular weight of the carboxyl-terminated hyperbranched polyester is ≤6400.

5. A peristaltic pump tube according to claim 1, characterized in that: The specific surface area of ​​the fumed silica is 200-300m 2 / g.

6. A method for preparing a peristaltic pump tube according to any one of claims 1 to 5, characterized in that: It includes the following steps: S1. Add 1# methyl vinyl silica gel, 2# methyl vinyl silica gel, 3# methyl vinyl silica gel, 4# methyl vinyl silica gel, hydroxy silicone oil and hydrogen-containing silicone oil into a vacuum kneader and mix them evenly in the kneader; S2, continue to add fumed silica or modified fumed silica in several times, after adding, stir and knead at a temperature of 65-75 ° C to form a mass, and continue to knead for 10-30 minutes after forming a mass to obtain a rubber material; S3, heating the rubber obtained in S2 to 110-130°C, mixing under vacuum for 0.5-1.5h, cooling and allowing to stand to obtain a primary mixed rubber, and performing secondary mixing under the same conditions to obtain a secondary mixed rubber; S4. The secondary mixed rubber and platinum vulcanizer B are evenly mixed in an open mill, and then mixed with platinum vulcanizer A in an open mill, and then vulcanized at 160-170°C for 10-20min, and then vulcanized at 190-210°C for 1.5-2.5h, and extruded through an extruder to obtain a peristaltic pump tube.

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