A stab-proof rare earth-based rubber product

By using rare earth-based filler LaCPA, the limitations of traditional safety protection materials in anti-puncture performance are solved, and the efficient puncture resistance and good tensile strength of rubber products are achieved. It is suitable for a variety of working gloves, improving the working safety of workers.

CN119039661BActive Publication Date: 2025-03-14TIANJIN BAOGANG RES INST OF RARE EARTHS CO LTD
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Patent Information

Application Number
CN202411556228.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-11-04
Publication Date
2025-03-14
Estimated Expiration
2044-11-04

AI Technical Summary

Technical Problem

Traditional safety protection materials have limitations in their stab damage resistance. It is difficult to maintain comfort and adaptability while providing sufficient safety protection. It is poor durability and easy to age, making it difficult to meet the long-term use needs of workers.

Method used

Rare earth-based filler LaCPA is used to prepare a rare earth-based filler with a unique sheet structure by combining lanthanum ink intermediate and glass cellulose, and hydrothermal reaction and calcination at a specific temperature. The filler is filled into the rubber product in the form of an additive to improve its anti-puncture capability.

Benefits of technology

While ensuring the tensile strength of rubber products, it significantly improves its puncture resistance, making it suitable for medical gloves, construction site work gloves and sanitary gloves, providing higher operational safety, and improving the production flexibility and success rate of rubber products.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention provides a stab-proof rare earth-based rubber product, wherein the rubber product is added with a rare earth-based filler LaCPA, and the rare earth-based filler LaCPA comprises the following components in mass fractions: 10-15 parts of a lanthanum ink intermediate; 10-15 parts of glass cellulose; wherein the lanthanum ink intermediate is prepared from the following components in mass fractions: 10-15 parts of a lanthanum-containing compound; 5-8 parts of graphene; and 200 parts of water. The stab-proof rare earth-based rubber product of the present invention increases the puncture-proof ability of the rubber while ensuring the tensile strength of the rubber product.
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Description

Technical Field

[0001] The invention belongs to the field of rubber product materials, and in particular relates to a stab-proof rare earth-based rubber product. Background Art

[0002] With the acceleration of industrialization, safety issues in industrial production have received increasing attention. Workers face various safety risks during the production process, among which stabbing accidents are one of the more common and serious safety issues.

[0003] Workers have a growing demand for safety protection, and they are eager for more efficient and convenient safety protection materials to protect their lives and health. Traditional safety protection materials have certain limitations in terms of anti-stab performance. These materials often find it difficult to provide adequate safety protection while maintaining comfort and adaptability. In addition, traditional materials may also have problems such as poor durability and easy aging, which makes it difficult to meet the needs of workers for long-term use. At the same time, with the continuous improvement of safety awareness, the requirements of related industries for safety protection materials are becoming increasingly stringent. The state has formulated a series of laws, regulations and standards, which have put forward clear requirements on the performance, quality and use of safety protection materials. Therefore, the market demand for anti-stab rubber is also growing continuously. Not only traditional industries such as machinery manufacturing and food processing have a high demand for anti-stab rubber, but some emerging industries such as new energy and intelligent manufacturing have also put forward higher requirements for safety protection materials. The government attaches great importance to safety production and scientific and technological innovation, and provides strong policy support for the research and development of anti-stab rubber. The government guides enterprises to increase R&D investment and promote the research and development and application of new safety protection materials such as anti-stab rubber by formulating preferential policies and increasing capital investment. Summary of the invention

[0004] In view of this, the present invention aims to overcome the defects in the prior art and proposes a stab-proof rare earth-based rubber product.

[0005] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0006] In a first aspect, the present invention provides a rare earth-based filler LaCPA, comprising the following components in parts by weight:

[0007] 10-15 parts of lanthanum ink intermediate;

[0008] 10-15 parts of glass cellulose;

[0009] Wherein, the lanthanum ink intermediate is prepared from the following components in parts by mass:

[0010] Containing 10-15 parts of lanthanum compound;

[0011] Graphene 5-8 parts;

[0012] 200 parts of water.

[0013] Preferably, the lanthanum-containing compound includes one or a mixture of lanthanum oxide, lanthanum sulfide, and lanthanum carbonate.

[0014] Preferably, the particle size of the rare earth-based filler LaCPA is 300-700 nm.

[0015] In a second aspect, the present invention further provides a method for preparing the rare earth-based filler LaCPA, the preparation method comprising the following steps:

[0016] After the lanthanum compound is mixed with graphene, water is added, and then a hydrothermal reaction is carried out at a temperature of 180-230°C. After the reaction is carried out for 2-4 hours, a lanthanum graphite intermediate is formed. The lanthanum graphite intermediate is then mixed with glass cellulose and calcined at a temperature of 800-1200°C for 2-4 hours to obtain the rare earth-based filler LaCPA.

[0017] In a third aspect, the present invention also provides a stab-proof rare earth-based rubber product prepared using the rare earth-based filler LaCPA.

[0018] Preferably, the stab-resistant rare earth-based rubber product comprises the following components in parts by weight:

[0019] 60-100 parts of rubber base material, 5-10 parts of softener, 1-10 parts of rare earth-based filler LaCPA, 1-3 parts of catalyst, and 3-7 parts of vulcanizer.

[0020] Preferably, the rubber base material is selected from natural rubber, artificial rubber, styrene-butadiene rubber or a mixture of the two or more thereof.

[0021] Preferably, the softener is selected from petroleum-based aromatic hydrocarbons and / or aromatic hydrocarbon carbenates.

[0022] Preferably, the catalyst is tributyl citrate (TBC).

[0023] Preferably, the vulcanizing agent is selected from one or a mixture of sulfur, thiuram, and resin vulcanizing agents.

[0024] In a fourth aspect, the present invention further provides a method for preparing the above-mentioned stab-resistant rare earth-based rubber product, the preparation method comprising the following steps:

[0025] S1: adding rare earth-based filler LaCPA into water and dispersant, mixing well and then putting into a sand mill for sand grinding to obtain LaCPA water slurry;

[0026] S2: mixing natural rubber, softener, LaCPA water-based slurry and catalyst to prepare a rubber mixture, and then subjecting the rubber mixture to mixing and molding processes to prepare a rubber product blank;

[0027] S3: The rubber product blank is mixed with a vulcanizing agent and put into a vulcanizer for vulcanization at a vulcanization temperature of 140-180° C. for 1-4 hours, thereby finally obtaining a puncture-resistant rare earth-based rubber product.

[0028] Furthermore, in step S1, the addition mass ratio of the rare earth-based filler LaCPA, water, and dispersant is 10:90:1, and the sanding time is 4-8 hours.

[0029] Furthermore, the particle size of the LaCPA aqueous slurry in step S1 is 300-700 nm.

[0030] In a fifth aspect, the present invention also provides an application of the stab-proof rare earth-based rubber product as described above in construction site stab-proof rubber, cleaning gloves, and medical gloves.

[0031] During the production process of the rubber product, the rare earth-based filler LaCPA is added to the rubber product in the form of an additive. Since the rare earth-based filler LaCPA has a small particle size, a lamellar structure, and a relatively excellent mechanical effect, when the rare earth-based filler LaCPA is filled, the tensile strength of the rubber is ensured while the anti-puncture ability of the rubber is increased. In addition, according to the characteristics of the rare earth-based filler LaCPA, a rubber base material, a softener, a catalyst, a vulcanizing agent, and a preparation process that match it and can exert the maximum anti-puncture ability are selected.

[0032] Compared with the prior art, the present invention has the following advantages:

[0033] The stab-proof rare earth-based rubber product of the present invention increases the stab-proof capability of the rubber while ensuring the tensile strength of the rubber product, so that the rubber product can be applied to the production of medical gloves, construction site gloves and sanitary gloves to protect the working safety of these medical, engineering and cleaning personnel. At the same time, the vulcanization temperature of normal rubber is 150-160°C. Due to the addition of the rare earth material LaCPA, the vulcanization temperature can be covered to 140-180°C, making the rubber production process more flexible and also ensuring the success rate of rubber production. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is the particle size test data of rare earth-based filler LaCPA filler;

[0035] Figure 2 This is the SEM scanning electron microscope image of the rare earth-based filler LaCPA1;

[0036] Figure 3This is the SEM scanning electron microscope image of the rare earth-based filler LaCPA4-LaCPA9 filler;

[0037] Figure 4 This is the appearance of the rubber product. DETAILED DESCRIPTION

[0038] Unless otherwise defined, the technical terms used in the following examples have the same meanings as those generally understood by those skilled in the art to which the present invention belongs. The test reagents used in the following examples, unless otherwise specified, are all conventional biochemical reagents; the experimental methods, unless otherwise specified, are all conventional methods.

[0039] The present invention will be described in detail below with reference to the embodiments.

[0040] Example 1 Preparation of rare earth-based filler LaCPA1

[0041] Take 12 parts by mass of lanthanum oxide and 6 parts of graphene, mix them, add 200 parts of water, put them into a hydrothermal reactor, set the temperature to 200°C and react for 3 hours to form a lanthanum graphite intermediate, then take 12 parts of the lanthanum graphite intermediate and mix them with 12 parts of glass cellulose, set the temperature to 1000°C and calcine for 3 hours to obtain the rare earth-based filler LaCPA1.

[0042] Example 2 Preparation of rare earth-based filler LaCPA2

[0043] Take 10 parts by mass of lanthanum sulfide and 8 parts of graphene, mix them, add 200 parts of water, put them into a hydrothermal reactor, set the temperature to 230°C and react for 3 hours to form a lanthanum graphite intermediate, then take 15 parts of the lanthanum graphite intermediate and mix them with 10 parts of glass cellulose, set the temperature to 1200°C and calcine for 3 hours to obtain the rare earth-based filler LaCPA2.

[0044] Example 3 Preparation of rare earth-based filler LaCPA3

[0045] Take 15 parts by mass of lanthanum carbonate and 5 parts of graphene, mix them, add 200 parts of water, put them into a hydrothermal reactor, set the temperature to 180°C and react for 3 hours to form a lanthanum graphite intermediate, then take 10 parts of the lanthanum graphite intermediate and mix them with 15 parts of glass cellulose, set the temperature to 800°C and calcine for 3 hours to obtain the rare earth-based filler LaCPA3.

[0046] Comparative Example 1 Preparation of rare earth-based filler LaCPA4

[0047] Take 5 parts by mass of lanthanum oxide and 9 parts of graphene, mix them, add 200 parts of water, put them into a hydrothermal reactor, set the temperature to 200°C and react for 3 hours to form a lanthanum graphite intermediate, then take 12 parts of the lanthanum graphite intermediate and mix them with 12 parts of glass cellulose, set the temperature to 1000°C and calcine for 3 hours to obtain the rare earth-based filler LaCPA4.

[0048] Comparative Example 2 Preparation of rare earth-based filler LaCPA5

[0049] Take 20 parts by mass of lanthanum oxide and 4 parts of graphene, mix them, add 200 parts of water, put them into a hydrothermal reactor, set the temperature to 200°C and react for 3 hours to form a lanthanum graphite intermediate, then take 12 parts of the lanthanum graphite intermediate and mix them with 12 parts of glass cellulose, set the temperature to 1000°C and calcine for 3 hours to obtain the rare earth-based filler LaCPA5.

[0050] Comparative Example 3 Preparation of rare earth-based filler LaCPA6

[0051] Take 12 parts of lanthanum element and 6 parts of graphene by mass, mix them, add 200 parts of water, put them into a hydrothermal reactor, set the temperature to 150°C and react for 3 hours to form a lanthanum graphite intermediate, then take 12 parts of the lanthanum graphite intermediate and mix them with 12 parts of glass cellulose, set the temperature to 1000°C and calcine for 3 hours to obtain the rare earth-based filler LaCPA6.

[0052] Comparative Example 4 Preparation of rare earth-based filler LaCPA7

[0053] Take 12 parts by mass of lanthanum element and mix it with 6 parts of graphene, add 200 parts of water, put it into a hydrothermal reactor, set the temperature to 200°C and react for 3 hours to form a lanthanum graphite intermediate, then take 5 parts of the lanthanum graphite intermediate and mix it with 18 parts of glass cellulose, set the temperature to 1000°C and calcine for 3 hours to obtain the rare earth-based filler LaCPA7.

[0054] Comparative Example 5 Preparation of rare earth-based filler LaCPA8

[0055] Take 12 parts by mass of lanthanum element and mix it with 6 parts of graphene, add 200 parts of water, put it into a hydrothermal reactor, set the temperature to 200°C and react for 3 hours to form a lanthanum graphite intermediate, then take 19 parts of the lanthanum graphite intermediate and mix it with 4 parts of glass cellulose, set the temperature to 1000°C and calcine for 3 hours to obtain the rare earth-based filler LaCPA8.

[0056] Comparative Example 6 Preparation of rare earth-based filler LaCPA9

[0057] Take 12 parts of lanthanum element and 6 parts of graphene by mass, mix them, add 200 parts of water, put them into a hydrothermal reactor, set the temperature to 200°C and react for 3 hours to form a lanthanum graphite intermediate, then take 15 parts of the lanthanum graphite intermediate and mix them with 15 parts of glass cellulose, set the temperature to 600°C and calcine for 3 hours to obtain the rare earth-based filler LaCPA9.

[0058] Preparation of LaCPA water-based slurry: Take 10 parts of rare earth-based fillers LaCPA1-LaCPA9 respectively, add them to 90 parts of water, then add 1% of the total mass of dispersant, and then mix them evenly. Put them in a sand mill and sand grind them for 6 hours. After sand grinding, a 10% LaCPA water-based slurry is obtained, and the slurry is white. The particle size of this LaCPA1 slurry is tested, and the experimental results are as follows Figure 1 As shown in FIG. 1 , the particle size of the material after sand grinding is small. The rare earth-based filler LaCPA prepared in Example 1 and Comparative Examples 1 to Comparative Examples 6 were scanned by SEM electron microscope. The experimental results of Example 1 are shown in FIG. Figure 2 As shown, it can be seen that the rare earth-based filler LaCPA1 prepared in Example 1 has a unique lamellar structure. Due to its unique lamellar structure and mechanical properties, the material itself has a very good unloading effect. Adding this material in the production process of rubber can effectively improve the anti-stab performance of rubber products. Figure 3 As shown, the rare earth-based fillers LaCPA4-LaCPA9 prepared in Comparative Examples 1-6 are not suitable in terms of raw material ratio, production process and reaction conditions, resulting in the final product not having a lamellar structure or an unclear lamellar structure. When added as fillers to rubber products, they cannot play a puncture-proof effect.

[0059] Application Example 1 Preparation of ordinary rubber 1

[0060] 1000 g of natural rubber, 100 g of petroleum-based aromatic hydrocarbons, 100 g of calcium carbonate and 30 g of tributyl citrate were weighed and mixed together to form a rubber mixture; the rubber mixture was then put into a mixer and the mixing temperature was set to 150° C. and mixed for 3 hours to uniformly disperse various compounding agents in the rubber to form a rubber material; the prepared rubber material was kept at 150° C. and was made into a rubber product blank through a special mold and molding process; the rubber product blank was mixed with 70 g of thiuram again and put into a vulcanizer for vulcanization, so that the rubber material was chemically reacted at 160° C. for 2 hours to form an ordinary rubber skin 1 (referred to as rubber skin 1) with certain hardness, elasticity and wear resistance.

[0061] Application Example 2 Preparation of rare earth-based rubber 2

[0062] 1000 g of natural rubber, 100 g of petroleum-based aromatic hydrocarbons, 100 g of rare earth-based filler LaCPA1 filler and 30 g of tributyl citrate were weighed and mixed together to form a rubber mixture; the rubber mixture was then put into a mixer and the mixing temperature was set to 150° C. and mixed for 3 hours to uniformly disperse various compounding agents in the rubber to form a rubber material; the prepared rubber material was kept at 150° C. and was made into a rubber product blank through a special mold and molding process; the rubber product blank was mixed with 70 g of thiuram again and put into a vulcanizer for vulcanization, so that the rubber material was chemically reacted at 160° C. for 2 hours to form a rare earth-based rubber skin 2 (referred to as rubber skin 2) with certain hardness, elasticity and wear resistance.

[0063] Application Example 3 Preparation of rare earth-based rubber 3

[0064] 1000 g of natural rubber, 100 g of petroleum-based aromatic hydrocarbons, 110 g of rare earth-based filler LaCPA1 and 30 g of tributyl citrate were weighed and mixed together to form a rubber mixture; the rubber mixture was then put into a mixer and the mixing temperature was set to 150° C. and mixed for 3 hours to uniformly disperse various compounding agents in the rubber to form a rubber material; the prepared rubber material was kept at 150° C. and formed into a rubber product blank through a special mold and molding process; the rubber product blank was mixed with 70 g of thiuram again and put into a vulcanizer for vulcanization, so that the rubber material was chemically reacted at 160° C. for 2 hours to form a rare earth-based rubber skin 3 (referred to as rubber skin 3) with certain hardness, elasticity and wear resistance.

[0065] Application Example 4 Preparation of rare earth-based rubber 4

[0066] 1000 g of natural rubber, 100 g of petroleum-based aromatic hydrocarbons, 100 g of rare earth-based filler LaCPA1 filler and 30 g of metallic sodium were weighed and mixed together to form a rubber mixture; the rubber mixture was then put into a mixer and the mixing temperature was set to 150°C and mixed for 3 hours to uniformly disperse various compounding ingredients in the rubber to form a rubber material; the prepared rubber material was kept at 150°C and formed into a rubber product blank through a special mold and molding process; the rubber product blank was mixed with 70 g of thiuram again and put into a vulcanizer for vulcanization, so that the rubber material was chemically reacted at 160°C for 2 hours to form a rare earth-based rubber skin 4 (referred to as rubber skin 4) with certain hardness, elasticity and wear resistance.

[0067] Application Example 5 Preparation of Rare Earth-Based Rubber 5

[0068] Rubber 5 (other rare earth materials) 1000g of natural rubber, 100g of petroleum-based aromatic hydrocarbons, 100g of rare earth material lanthanum oxide (La2O3) filler, and 30g of tributyl citrate were mixed together to form a rubber mixture; the rubber mixture was then put into a mixer and the mixing temperature was set to 150°C and mixed for 3 hours to allow various compounding agents to be evenly dispersed in the rubber to form a rubber material; the prepared rubber material was kept at 150°C and formed into a rubber product blank through a special mold and molding process; the rubber product blank was mixed with 70g of thiuram again and put into a vulcanizer for vulcanization, so that the rubber material was chemically reacted at 160°C for 2 hours to form a rare earth-based rubber 5 (referred to as rubber 5) with certain hardness, elasticity and wear resistance.

[0069] Application Example 6 Preparation of Rare Earth-Based Rubber 6

[0070] 1000 g of natural rubber, 100 g of petroleum-based aromatic hydrocarbons, 100 g of rare earth-based filler LaCPA1 filler and 30 g of metallic sodium are mixed together to form a rubber mixture; the rubber mixture is then put into a mixer and the mixing temperature is set to 150°C and mixed for 3 hours to uniformly disperse various compounding ingredients in the rubber to form a rubber material; the prepared rubber material is kept at 150°C and is made into a rubber product blank through a special mold and molding process; the rubber product blank is mixed with 70 g of thiuram again and put into a vulcanizer for vulcanization, so that the rubber material undergoes a chemical reaction at 130°C for 2 hours to form a rare earth-based rubber skin 6 (referred to as rubber skin 6) with certain hardness, elasticity and wear resistance.

[0071] Application Example 7 Preparation of Rare Earth-Based Rubber 7

[0072] 600 g of natural rubber, 500 g of aromatic hydrocarbon carbenate, 10 g of rare earth-based filler LaCPA1 and 10 g of tributyl citrate were weighed and mixed together to form a rubber mixture; the rubber mixture was then put into a mixer and the mixing temperature was set to 150° C. and mixed for 3 hours to allow various compounding ingredients to be evenly dispersed in the rubber to form a rubber material; the prepared rubber material was kept at 150° C. and was made into a rubber product blank through a special mold and molding process; the rubber product blank was mixed with 30 g of sulfur again and put into a vulcanizer for vulcanization, so that the rubber material was chemically reacted at 140° C. for 4 hours to form a rare earth-based rubber skin 7 (referred to as rubber skin 7) with certain hardness, elasticity and wear resistance.

[0073] Application Example 8 Preparation of Rare Earth-Based Rubber 8

[0074] 800 g of natural rubber, 80 g of petroleum-based aromatic hydrocarbons, 75 g of rare earth-based filler LaCPA1 and 20 g of tributyl citrate were weighed and mixed together to form a rubber mixture; the rubber mixture was then put into a mixer and the mixing temperature was set to 150° C. and mixed for 3 hours to uniformly disperse various compounding agents in the rubber to form a rubber material; the prepared rubber material was kept at 150° C. and was made into a rubber product blank through a special mold and molding process; the rubber product blank was mixed with 50 g of thiuram again and put into a vulcanizer for vulcanization to allow the rubber material to undergo a chemical reaction at 180° C. for 1 hour to form a rare earth-based rubber skin 8 (referred to as rubber skin 8) with certain hardness, elasticity and wear resistance.

[0075] The surface of the above 8 kinds of rubbers were observed, and the experimental results are as follows: Figure 4 As shown, the appearance of rubber 2 prepared with rare earth-based filler LaCPA as filler is not significantly different from that of rubber 1 prepared normally, which is smooth, flat and has no difference in color. When the mixing temperature and catalyst are changed (rubber 3 and rubber 4), the prepared rubber will become unevenly distributed and too thin in the middle. This is because the change of mixing temperature and catalyst will affect the dispersibility of rare earth-based filler LaCPA, resulting in uneven thickness of the final rubber product. When the rare earth-based filler LaCPA is replaced with the most common lanthanum oxide (La2O3), the surface of the prepared rubber is not smooth and has a full sense of grain. This is because the rubber surface must be kept smooth and flat, and the particle size of the rare earth-based filler must be kept between 300-700nm. After reaching this particle size, the surface of the rubber prepared with rare earth-based fillers as fillers is smooth, which is no different from normal rubber. Once the particle size of the rare earth-based filler exceeds 1200nm, the surface of the prepared rubber will be very rough and unsuitable for normal daily use. Similarly, changing the reaction temperature during the vulcanization process will also cause the surface of the rubber to be uneven and granular. This is because the vulcanization process can better disperse the rare earth-based filler LaCPA. The vulcanization process can make the performance of the rubber product better in all aspects.

[0076] Experimental Example 1: Effect of Rare Earth-Based Rubber on Stab-Proofing

[0077] The puncture resistance of stab-resistant rubber is its core evaluation index. At present, the puncture resistance test methods for stab-resistant rubber mainly include mechanical puncture test and puncture test under simulated actual working environment. Through these test methods, the puncture resistance of stab-resistant rubber can be comprehensively evaluated, providing a scientific basis for its application in different fields. The specific test method is: first, ordinary rubber without rare earth-based fillers (control group) and stab-resistant rubber with rare earth-based fillers (experimental group) are cut or prepared according to the specified size and shape to ensure the integrity and consistency of the samples. At the same time, the samples are properly cleaned and processed to eliminate the influence of surface contamination and impurities on the test results. According to the test standards and sample characteristics, a puncture test equipment with high precision and stability is selected to ensure that the parameters of the equipment are set correctly, such as puncture speed, force, etc., to meet the test requirements. Then install the fixture correctly according to the equipment manual to ensure that it is stable and reliable. Place the processed sample in the fixture, and adjust the position and angle of the fixture so that the sample is in the correct position and state during the test. After confirming that the sample is clamped and positioned correctly, start the puncture test. According to the requirements of the test standard, the puncture speed, force and other parameters were controlled. Each experimental group was set up with 4 parallel groups and 2 repeated groups. Finally, the relevant data during the test were recorded after average calculation. The experimental results are shown in Table 1:

[0078] Table 1 Effect of rubber's puncture resistance

[0079]

[0080] The experimental results are shown in Table 1. It can be found that after adding the rare earth-based filler LaCPA, the puncture resistance of the rubber is significantly improved, while the puncture resistance of other experimental groups is not as good as or equal to that of ordinary rubber, and the puncture resistance is not significantly improved.

[0081] In summary, the rare earth-based filler LaCPA and the rubber product filled with the rare earth-based filler LaCPA proposed in the present invention have a unique lamellar structure and mechanical strength. With the help of a suitable rubber product manufacturing process, the puncture resistance of the rubber product can be greatly improved, adding a new layer of protection for medical and industrial production operators.

[0082] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A stab-proof rare earth-based rubber product, characterized in that: The invention comprises the following components in parts by weight: 100 parts of rubber base material, 5-10 parts of softener, 1-10 parts of rare earth-based filler LaCPA, 1-3 parts of catalyst, and 3-7 parts of vulcanizing agent; The rare earth-based filler LaCPA includes the following components by mass: 10-15 parts of lanthanum ink intermediate; 10-15 parts of glass cellulose; wherein the lanthanum ink intermediate is prepared from the following components by mass: 10-15 parts of lanthanum-containing compound; 5-8 parts of graphene; 200 parts of water; the particle size of the rare earth-based filler LaCPA is 300-700nm; The preparation method of the rare earth-based filler LaCPA comprises the following steps: adding water after mixing a lanthanum-containing compound with graphene, and then performing a hydrothermal reaction at a temperature of 180-230° C. to form a lanthanum graphite intermediate after reacting for 2-4 hours, and then mixing the lanthanum graphite intermediate with glass cellulose, and calcining at a temperature of 800-1200° C. for 2-4 hours to obtain the rare earth-based filler LaCPA; The rubber base material is natural rubber; the softener is selected from petroleum-based aromatic hydrocarbons / or aromatic hydrocarbon carbenates; the catalyst is tributyl citrate; the vulcanizing agent is selected from sulfur, thiuram, resin vulcanizing agents or a mixture of several thereof; The method for preparing the stab-proof rare earth-based rubber product comprises the following steps: S1: adding rare earth-based filler LaCPA into water and dispersant, mixing well and then putting into a sand mill for sand grinding to obtain LaCPA water slurry; S2: mixing natural rubber, softener, LaCPA water-based slurry and catalyst to prepare a rubber mixture, and then subjecting the rubber mixture to mixing and molding processes to prepare a rubber product blank; S3: The rubber product blank is mixed with a vulcanizing agent and put into a vulcanizer for vulcanization at a vulcanization temperature of 140-180° C. for 1-4 hours, thereby finally obtaining a puncture-resistant rare earth-based rubber product.

2. The stab-proof rare earth-based rubber product according to claim 1, characterized in that: The lanthanum-containing compound includes one or a mixture of lanthanum oxide, lanthanum sulfide, and lanthanum carbonate.

3. The stab-proof rare earth-based rubber product according to claim 1, characterized in that: In step S1, the addition mass ratio of the rare earth-based filler LaCPA, water, and dispersant is 10:90:1, and the sand grinding time is 4-8 hours; and the particle size of the LaCPA aqueous slurry in step S1 is 300-700 nm.

4. Use of the stab-proof rare earth-based rubber product according to any one of claims 1 to 3 in stab-proof rubber leather, cleaning gloves or medical gloves at construction sites.

Citation Information

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