Anti-skid wear-resistant light elastic super olefin polymer rubber and plastic material and preparation method thereof

Abstract

The invention discloses an anti-skid, wear-resistant, light and elastic super-olefin polymer rubber and plastic material and a preparation method of the anti-skid, wear-resistant, light and elastic super-olefin polymer rubber and plastic material. The wear-resistant non-slip material is prepared from the following components in parts by weight: 40 to 60 parts of non-slip master batch, 8 to 12 parts of thermoplastic elastomer, 12 to 18 parts of ethylene-vinyl acetate copolymer, 12 to 18 parts of ethylene-vinyl acetate copolymer resin, 3 to 5 parts of wear-resistant agent, 0.2 to 0.6 part of stearic acid, 0.5 to 0.8 part of cross-linking agent and 2 to 5 parts of zinc oxide. The anti-skid, wear-resistant, light and elastic super olefin polymer rubber and plastic material is prepared from the components. The material prepared by the invention has the characteristic of light weight, has good elastic property and non-slip property, is good in anti-slip effect, has no peculiar smell and is stable in overall performance.

Description

Technical Field

[0001] This invention belongs to the field of rubber composite materials, and in particular relates to a non-slip, wear-resistant, lightweight, elastic super olefin polymer rubber-plastic material and its preparation method. Background Technology

[0002] To improve comfort and lifespan, shoes typically use rubber soles, which offer excellent wear resistance and slip resistance. For example, patent application number 201210286661.6 discloses a lightweight, slip-resistant, and highly wear-resistant rubber material for shoe soles and its preparation method. The main component of the sole is EVA, and the resulting product has a strong odor after mixing. Furthermore, the use of EVA, NR, and SBR as the three main components makes the sole bulky and lacking in elasticity. Summary of the Invention

[0003] The purpose of this invention is to provide a non-slip, wear-resistant, lightweight, elastic superolefin polymer rubber and plastic material that can solve at least one of the above problems.

[0004] According to one aspect of the present invention, a non-slip, wear-resistant, lightweight, elastic super olefin polymer rubber-plastic material is provided, comprising the following components in parts by weight:

[0005] The composition includes 40-60 parts of anti-slip masterbatch, 8-12 parts of thermoplastic elastomer, 12-18 parts of ethylene-vinyl acetate copolymer, 12-18 parts of ethylene-vinyl acetate copolymer resin, 3-5 parts of abrasion resistant agent, 0.2-0.6 parts of stearic acid, 0.5-0.8 parts of crosslinking agent, and 2-5 parts of zinc oxide.

[0006] In some embodiments, the anti-slip masterbatch is a blend of cis-1-4 and chlorosulfonated polymers introduced from a polystyrene-based block copolymer.

[0007] In some embodiments, the thermoplastic elastomer comprises the following components in parts by weight:

[0008] 25-35 parts SBCs, 10-30 parts EVA, 15-30 parts paraffin oil, 3-5 parts solution-polymerized styrene-butadiene rubber, and 5-8 parts OBC.

[0009] In some embodiments, the wear-resistant agent comprises the following components in parts by weight:

[0010] 25-35 parts EVA, 50-60 parts siloxane, 3-6 parts filler powder, and 8-12 parts functional additives.

[0011] In some implementations, the functional additive is a silane coupling agent.

[0012] In some implementations, the crosslinking agent is controlled rheology polypropylene.

[0013] According to another aspect of the present invention, a method for preparing the above-mentioned anti-slip, wear-resistant, lightweight, elastic superolefin polymer rubber-plastic material is provided, comprising the following steps:

[0014] S1. The above components are added into the internal mixer in the corresponding weight parts and mixed in a certain temperature, and then discharged.

[0015] S2. Thinning process is performed on the discharged material;

[0016] S3. Granulate the materials of different thicknesses.

[0017] In some embodiments, when the materials are mixed in the internal mixer in step S1, a heavy hammer is used for mixing. The pressure of the heavy hammer is 7-9 kg. When the raw materials are mixed to 90°C, they are turned over once with the heavy hammer. Then, they are turned over once every 5°C increase until the temperature rises to 110°C and then the material is discharged.

[0018] In some implementations, the thickness of the material after thinning in step S2 is 6-8 mm.

[0019] The beneficial effects of this invention are:

[0020] 1. Anti-slip masterbatch is a blend of polystyrene block copolymer as base material and cis-1-4 and chlorosulfonation polymerization. It is mainly used for foaming. The main component of the above material is anti-slip masterbatch, which replaces the existing traditional foamed rubber such as NR, which greatly reduces the weight of the material and achieves a lightweight effect. It also has a good anti-slip effect. Therefore, when made into shoe soles, the entire shoe sole is lightweight and the wearing comfort is improved.

[0021] 2. By using thermoplastic elastomers and appropriate proportions, the resilience, elongation, and anti-slip properties of various foamed products can be improved, thereby giving the anti-slip, wear-resistant, lightweight, and elastic super olefin polymer rubber and plastic material excellent elasticity and flexibility. Products made from this material have excellent elasticity and anti-slip properties, and good anti-slip effect.

[0022] 3. By using a certain ratio of ethylene-vinyl acetate copolymer, it achieves a lightweight effect, good shock absorption, excellent elasticity, and high flexibility.

[0023] 4. The elasticity and flexibility of the entire material are further improved by using ethylene-vinyl acetate copolymer resin;

[0024] 5. By adding wear-resistant agents, the wear resistance of the material can be further increased;

[0025] 6. The above preparation method is simple and the process is straightforward. The final product is granulated granules, and the resulting material has no odor, making it convenient for subsequent production of shoe soles or other products. Detailed Implementation

[0026] The present invention will now be described in further detail.

[0027] Example 1

[0028] The anti-slip, wear-resistant, lightweight, elastic super olefin polymer rubber-plastic material of the present invention is composed of the following components in parts by weight:

[0029] The composition includes 50 parts anti-slip masterbatch, 10 parts thermoplastic elastomer, 15 parts ethylene-vinyl acetate copolymer, 15 parts ethylene-vinyl acetate copolymer resin, 4 parts wear-resistant agent, 0.4 parts stearic acid, 0.6 parts crosslinking agent, and 4 parts zinc oxide.

[0030] The anti-slip masterbatch is a blend based on polystyrene block copolymers, incorporating cis-1-4 and chlorosulfonation polymerization.

[0031] The anti-slip masterbatch, after foaming, replaces traditional foamed rubbers such as NR. During use, EVA / PE foam can be added as an anti-slip modifier according to actual application requirements. This anti-slip masterbatch has excellent anti-slip properties, good elasticity, flexibility, and softness, good stability, and a rubber-like surface. Its corresponding properties before foaming are as follows:

[0032] characteristic Test methods Test conditions unit Physical property value proportion ASTM D792 —— —— 0.9～0.98 elongation ASTMD412 Crosshead ％ 800 300% Modulus ASTMD412 500mm / min <![CDATA[kg / cm 2 ]]> 75 Tear strength ASTM D624 CDie kg / cm 85

[0033] The foaming method of anti-slip masterbatch is the same as that of EVA, so it will not be described in detail here.

[0034] Thermoplastic elastomers comprise the following components in parts by weight:

[0035] 30 parts SBCs, 20 parts EVA (ethylene-vinyl acetate copolymer), 22 parts paraffin oil, 4 parts solution-polymerized styrene-butadiene rubber, and 6 parts OBC (olefin block copolymer).

[0036] Among them, SBCs are styrene block copolymers, with CAS number 66070-58-4, specifically styrene-ethylene / butene-styrene block copolymers; paraffin oil has CAS number 8042-47-5.

[0037] Through the action of each component in the thermoplastic elastomer, as well as the addition of solution-polymerized styrene-butadiene rubber and OBC, the overall performance stability is improved, the elasticity is further increased, and there are no irritating substances or odor formation.

[0038] This material incorporates ethylene vinyl acetate copolymer resin, with a VA content of 40%. It utilizes a high VA (vinyl acetate) content ethylene vinyl acetate copolymer resin, exhibiting excellent elasticity and flexibility. Its specific properties are shown in the table below:

[0039] project Test methods Test value density ASTM D792 0.966 Elongation at break ASTM D638 >1000 Shore hardness ASTM D2240 40

[0040] Therefore, the material has excellent processability, elasticity, high flexibility and softness, good shock absorption effect, and no odor.

[0041] The wear-resistant agent of this invention comprises the following components in parts by weight:

[0042] The composition includes 30 parts EVA, 55 parts siloxane, 5 parts filler powder, and 10 parts functional additives. The filler powder can be calcium carbonate; the functional additive is a silane coupling agent; and the crosslinking agent is controlled rheology polypropylene. The CAS number for EVA is 24937-78-8, the CAS number for siloxane is 63148-62-9, and the CAS number for filler powder is 471-34-1. The functional additives improve the dispersibility of each component and the overall abrasion resistance; the calcium carbonate acts as a reinforcing agent, improving the overall abrasion resistance, tear strength, tensile strength, modulus, and swelling resistance.

[0043] The anti-slip, wear-resistant, lightweight, and elastic super olefin polymer rubber and plastic material of the present invention contains super olefin polymers. Through the appropriate proportion of each component, it achieves good anti-slip effect, light weight, good wear resistance, good elasticity, and no odor, and can be used for foaming in products such as shoe soles.

[0044] The preparation method of the above-mentioned anti-slip, wear-resistant, lightweight, elastic super olefin polymer rubber and plastic material includes the following steps:

[0045] S1. The above components are added into the internal mixer in the corresponding weight parts and mixed in a certain temperature, and then discharged.

[0046] S2. Thinning process is performed on the discharged material;

[0047] S3. Granulate the materials of different thicknesses.

[0048] In step S1, when the materials are mixed in the internal mixer, a heavy hammer is used for mixing. The pressure of the heavy hammer is 7-9 kg. When the raw materials are mixed to 90°C, they are turned over once with the heavy hammer. Then, they are turned over once every 5°C increase until the temperature rises to 110°C and then discharged.

[0049] The uniformly mixed material from step S1 is placed into a wheel mill, and the material is thinned by rollers. The wheel mill thins the material twice, so that the final thickness of the thinned material is 6-8 mm.

[0050] Finally, the stretched raw material is put into a granulator for granulation and then packaged for use in subsequent production.

[0051] Example 2

[0052] This embodiment is basically the same as Embodiment 1, and achieves the same performance as Embodiment 1. The difference is:

[0053] This non-slip, wear-resistant, lightweight, and elastic super olefin polymer rubber-plastic material is composed of the following components in parts by weight:

[0054] The composition includes 40 parts anti-slip masterbatch, 8 parts thermoplastic elastomer, 12 parts ethylene-vinyl acetate copolymer, 12 parts ethylene-vinyl acetate copolymer resin, 3 parts wear-resistant agent, 0.2 parts stearic acid, 0.5 parts crosslinking agent, and 2 parts zinc oxide.

[0055] Thermoplastic elastomers comprise the following components in parts by weight:

[0056] 25 parts SBCs, 10 parts EVA, 15 parts paraffin oil, 3 parts solution-polymerized styrene-butadiene rubber, and 5 parts OBC.

[0057] The wear-resistant agent comprises the following components in parts by weight:

[0058] 25 parts EVA, 50 parts siloxane, 3 parts filler powder, and 8 parts functional additives.

[0059] Example 3

[0060] This embodiment is basically the same as Embodiment 1, and achieves the same performance as Embodiment 1. The difference is:

[0061] This non-slip, wear-resistant, lightweight, and elastic super olefin polymer rubber-plastic material is composed of the following components in parts by weight:

[0062] The composition includes 60 parts anti-slip masterbatch, 12 parts thermoplastic elastomer, 18 parts ethylene-vinyl acetate copolymer, 18 parts ethylene-vinyl acetate copolymer resin, 5 parts wear-resistant agent, 0.6 parts stearic acid, 0.8 parts crosslinking agent, and 5 parts zinc oxide.

[0063] Thermoplastic elastomers comprise the following components in parts by weight:

[0064] 35 parts SBCs, 30 parts EVA (ethylene-vinyl acetate copolymer), 30 parts paraffin oil, 5 parts solution-polymerized styrene-butadiene rubber, and 8 parts OBC (olefin block copolymer).

[0065] The wear-resistant agent comprises the following components in parts by weight:

[0066] 35 parts EVA, 60 parts siloxane, 6 parts filler powder, and 12 parts functional additives.

[0067] The anti-slip, wear-resistant, lightweight, and elastic superolefin polymer rubber-plastic material prepared by the preparation methods of the above embodiments of the present invention is in granular form and can be widely used in shoe sole production. Specifically, the granular material is placed into the injection gun of an injection molding machine, and the injection gun temperature is adjusted as follows: the first stage temperature is set to 80°C, the second stage to 85°C, the third stage to 90°C, and the fourth stage to 90°C; the shoe sole mold temperature is adjusted to 175°C, and the injection time is adjusted to 400 seconds. Subsequently, according to the corresponding injection volume, the material is injected into the shoe sole mold to form the shoe sole. The shoe sole formed by the above material has excellent wear resistance, anti-slip properties, lightweight, and good elasticity, and has no odor. Performance tests were conducted on the corresponding sports shoes made from the formed shoe sole, and the corresponding data are shown in the table below:

[0068]

[0069] As shown in the table above, the soles formed from the material of this invention have excellent anti-slip and wear-resistant properties in both dry and wet environments.

[0070] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the inventive concept of the present invention, and these all fall within the protection scope of the present invention.

Claims

1. Anti-slip, wear-resistant, light, elastic, super-olefinic polymer rubbery material, characterized in that, By the following weight parts of each component: Antiskid master batch 40-60 parts, thermoplastic elastomer 8-12 parts, ethylene-vinyl acetate copolymer 12-18 parts, ethylene-vinyl acetate copolymer resin 12-18 parts, wear-resistant agent 3-5 parts, stearic acid 0.2-0.6 parts, crosslinking agent 0.5-0.8 parts and zinc oxide 2-5 parts.

2. The anti-slip, wear-resistant, light-bounce, super-olefinic polymer rubber-plastic material according to claim 1, characterized in that, The antiskid master batch is a blend of cis-1-4 and chlorosulfonated polymer introduced into polystyrene-based block copolymer as a base material.

3. The anti-slip, wear-resistant, light-bounce, super-olefinic polymer rubber-plastic material according to claim 2, characterized in that, The thermoplastic elastomer comprises the following weight parts of each component: SBCs 25-35 parts, EVA 10-30 parts, paraffin oil 15-30 parts, solution styrene-butadiene rubber 3-5 parts and OBC 5-8 parts.

4. The anti-slip, wear-resistant, light-bounce, super-olefinic polymer rubber-plastic material according to claim 3, characterized in that, The wear-resistant agent comprises the following weight parts of each component: EVA 25-35 parts, siloxane 50-60 parts, filling powder 3-6 parts and functional auxiliary agent 8-12 parts.

5. The anti-slip, wear-resistant, light-bounce, super-olefinic polymer rubber-plastic material according to claim 4, characterized in that, The functional auxiliary agent is a silane coupling agent.

6. The anti-slip, wear-resistant, light-bounce, super-olefinic polymer rubber-plastic material according to claim 5, characterized in that, The crosslinking agent is a controllable rheological polypropylene.

7. The process for the preparation of anti-slip, wear resistant, light bouncing, super-olefinic polymer rubbery plastic material according to claim 6, characterized by the fact that, The method comprises the following steps: S1, sequentially put the above components into the mixing machine according to the corresponding weight parts, mix and mix at a certain temperature, and discharge; S2, thinning treatment is performed on the discharged material; S3, the thinned material is granulated.

8. The method of making a non-slip, wear resistant, light bouncy, super-olefinic polymer rubbery plastic material according to claim 7, characterized in that, In the step S1, when the material is mixed in the mixing machine, a weight is used for mixing, the weight pressure is 7-9 kg, the raw materials are mixed to 90℃, and then turned over once every 5℃, until the temperature rises to 110℃, and then discharged.

9. The method of making a non-slip, wear resistant, light bouncy, super-olefinic polymer rubbery plastic material according to claim 8, characterized in that, The thickness of the material after thinning in the step S2 is 6-8 mm.

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