阅读说明：本技术 一种高性能苯乙烯-丁二烯嵌段共聚物基超细纤维合成革及其生产方法 (High-performance styrene-butadiene block copolymer-based superfine fiber synthetic leather and production method thereof ) 是由 陆毅 马兴元 严荣华 陈建邦 于 2020-12-07 设计创作，主要内容包括：本发明公开了一种高性能苯乙烯-丁二烯嵌段共聚物基超细纤维合成革及其生产方法,涉及超细纤维合成革技术领域。本发明采用四辊压延、热塑复合和真空吸纹技术,将苯乙烯-丁二烯嵌段共聚物薄膜直接复合在超细纤维合成革基布之上,再通过真空吸纹技术,在苯乙烯-丁二烯嵌段共聚物表面形成花纹,得到高性能苯乙烯-丁二烯嵌段共聚物基超细纤维合成革。该高性能SBS超细纤维合成革生产过程清洁环保,手感柔软丰满,表面纹理细腻逼真,雾化值小于4mg,气味小于3级,表面耐磨性大于4级,可作为鞋面材料,与SBS注塑鞋底具有很好的粘合强度,可生产高性能的防滑运动鞋,也可作为汽车座椅的环保蒙皮材料。(The invention discloses high-performance styrene-butadiene block copolymer-based superfine fiber synthetic leather and a production method thereof, and relates to the technical field of superfine fiber synthetic leather. The invention adopts four-roller calendering, thermoplastic compounding and vacuum grain-absorbing technology to directly compound a styrene-butadiene block copolymer film on the superfine fiber synthetic leather base cloth, and then forms patterns on the surface of the styrene-butadiene block copolymer through the vacuum grain-absorbing technology to obtain the high-performance styrene-butadiene block copolymer based superfine fiber synthetic leather. The production process of the high-performance SBS superfine fiber synthetic leather is clean and environment-friendly, soft and full in hand feeling, fine and vivid in surface texture, small in atomization value of 4mg, small in smell of 3 grades, high in surface wear resistance of 4 grades, capable of being used as a vamp material, good in bonding strength with an SBS injection molding sole, capable of producing high-performance anti-skidding sports shoes and capable of being used as an environment-friendly skin material of an automobile seat.)

1. A high-performance styrene-butadiene block copolymer-based superfine fiber synthetic leather is characterized by comprising: the composite fabric comprises a styrene-butadiene block copolymer film and superfine fiber synthetic leather base cloth, wherein the styrene-butadiene block copolymer film is compounded with the superfine fiber synthetic leather base cloth, and the styrene-butadiene block copolymer film has surface textures.

2. The high-performance styrene-butadiene block copolymer-based microfiber synthetic leather according to claim 1, wherein the thickness of the styrene-butadiene block copolymer film is 0.08mm to 1.2 mm.

3. The high-performance styrene-butadiene block copolymer-based ultrafine fiber synthetic leather according to claim 1, wherein the ultrafine fiber synthetic leather base cloth is island-fixed ultrafine fiber synthetic leather base cloth, non-island-fixed ultrafine fiber synthetic leather base cloth or orange-petal type ultrafine fiber synthetic leather base cloth.

4. A production method of high-performance styrene-butadiene block copolymer-based superfine fiber synthetic leather is characterized by comprising the following steps: the styrene-butadiene block copolymer film is compounded and attached to the superfine fiber synthetic leather base cloth by adopting thermoplastic compounding treatment, and the surface of the styrene-butadiene block copolymer film forms textures by adopting vacuum grain absorption treatment, so that the high-performance styrene-butadiene block copolymer based superfine fiber synthetic leather is obtained.

5. The production method according to claim 4, wherein the styrene-butadiene block copolymer film is obtained by calendering to form a film, and specifically comprises the following operations:

preheating a styrene-butadiene block copolymer calendered material in a high-speed kneader by adopting a four-roll calendering production line, banburying in an internal mixer, plasticating in a plasticating machine to obtain sizing material, and preparing the obtained sizing material into a styrene-butadiene block copolymer film by a four-roll calender;

the formula of the styrene-butadiene block copolymer calendered material is as follows: the adhesive comprises, by mass, 50-80 parts of a styrene-butadiene block copolymer, 1-5 parts of a toner, 0.2-1.8 parts of an AC foaming agent, 5-15 parts of No. 10 white oil, 1-2.5 parts of stearic acid, 1-3 parts of titanium dioxide and 0.1-0.2 part of tetrol phosphite ester.

6. The production method according to claim 5, wherein the preheating temperature is 70 ℃ to 80 ℃ and the preheating time is 5min to 10 min.

7. The production method according to claim 5, characterized in that the banburying temperature is 140-180 ℃ and the banburying time is 2-5 min; the plasticating temperature is 160-190 ℃, and the plasticating time is 5-10 min.

8. The production method according to claim 5, wherein the calendering temperature is 150 ℃ to 180 ℃ and the calendering thickness is 0.08mm to 1.2 mm.

9. The production method according to claim 4, wherein the thermoplastic composite processed gap is styrene-butadiene block copolymerization50-70% of the sum of the thicknesses of the object film and the superfine fiber synthetic leather base cloth, and the pressure is 4-5 kg/cm²。

10. The production method according to claim 4, wherein the temperature of the vacuum texturing is 160 ℃ to 190 ℃.

Technical Field

The invention belongs to the technical field of superfine fiber synthetic leather, and relates to high-performance styrene-butadiene block copolymer-based superfine fiber synthetic leather and a production method thereof.

Background

Because the raw leather resources for producing the natural leather are limited, and the production of the natural leather is a process with high energy consumption and high pollution, the production method can bring great pollution load to the environment. In recent years, new standards have been proposed for the safety of natural leather itself, and toxic chemicals such as Cr (vi), azo dyes, pentachlorophenol (PCP), and free formaldehyde, which are present in natural leather, are strictly limited. The production and use of natural leather face significant challenges from the standpoint of hide resources, environmental protection, product safety, and the market.

For the above reasons, development of new materials to replace natural leather is accelerated in all countries of the world. Wherein the development of the superfine fiber synthetic leather can be regarded as a model of the mutual combination of new materials. The superfine fiber synthetic leather is prepared by using superfine fiber non-woven as a base material, soaking polyurethane slurry with an open pore structure and processing through a series of complex processes. The superfine fiber has nanometer size and great specific surface area, and is similar to the fascicular collagen fiber in natural leather, and has physical performance similar to that of natural leather.

However, the continuous decline of the leather industry has been inevitable due to the shortage of raw hides and environmental pollution problems. Therefore, the high-performance superfine fiber synthetic leather is applied.

At present, superfine fiber synthetic leather is gradually applied to various fields, a sports shoe material is one of the largest application fields of the superfine fiber synthetic leather, particularly, in recent years, antiskid high-grade sports shoes adopt styrene-butadiene block copolymer (SBS) to inject soles, and the existing superfine fiber synthetic leather with polyurethane surface is difficult to adhere to the SBS soles, so that the bottleneck technical problem is formed.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention aims to provide high-performance styrene-butadiene block copolymer-based superfine fiber synthetic leather and a production method thereof, and solves the problem that the existing polyurethane-surfaced superfine fiber synthetic leather is difficult to be effectively bonded with styrene-butadiene block copolymer-based materials.

In order to achieve the purpose, the invention adopts the following technical scheme to realize the purpose:

the invention discloses high-performance styrene-butadiene block copolymer-based superfine fiber synthetic leather, which comprises the following components in percentage by weight: the composite fabric comprises a styrene-butadiene block copolymer film and superfine fiber synthetic leather base cloth, wherein the styrene-butadiene block copolymer film is compounded with the superfine fiber synthetic leather base cloth, and the styrene-butadiene block copolymer film has surface textures.

Preferably, the thickness of the styrene-butadiene block copolymer film is 0.08mm to 1.2 mm.

Preferably, the superfine fiber synthetic leather base cloth is island-shaped superfine fiber synthetic leather base cloth, non-island shaped superfine fiber synthetic leather base cloth or orange petal shaped superfine fiber synthetic leather base cloth.

The invention also discloses a production method of the high-performance styrene-butadiene block copolymer-based superfine fiber synthetic leather, which comprises the following steps: the styrene-butadiene block copolymer film is compounded and attached to the superfine fiber synthetic leather base cloth by adopting thermoplastic compounding treatment, and the surface of the styrene-butadiene block copolymer film forms textures by adopting vacuum grain absorption treatment, so that the high-performance styrene-butadiene block copolymer based superfine fiber synthetic leather is obtained.

Preferably, the styrene-butadiene block copolymer film is prepared by calendering and film forming, and specifically comprises the following operations:

a four-roll calendering production line is adopted, the calendered material of the styrene-butadiene block copolymer is preheated in a high-speed kneader, then is internally mixed in an internal mixer, and is plasticated in a plasticating machine to obtain sizing material, and the obtained sizing material is processed by a four-roll calender to obtain the styrene-butadiene block copolymer film.

Further preferably, the formulation of the calendered styrene-butadiene block copolymer material is: the adhesive comprises, by mass, 50-80 parts of a styrene-butadiene block copolymer, 1-5 parts of a toner, 0.2-1.8 parts of an AC foaming agent, 5-15 parts of No. 10 white oil, 1-2.5 parts of stearic acid, 1-3 parts of titanium dioxide and 0.1-0.2 part of tetrol phosphite ester.

Further preferably, the preheating temperature is 70-80 ℃, and the preheating time is 5-10 min.

Further preferably, the banburying temperature is 140-180 ℃, and the banburying time is 2-5 min; the plasticating temperature is 160-190 ℃, and the plasticating time is 5-10 min.

More preferably, the rolling temperature is 150 ℃ to 180 ℃, and the rolling thickness is 0.08mm to 1.2 mm.

Preferably, the clearance of the thermoplastic composite treatment is 50 to 70 percent of the sum of the thicknesses of the styrene-butadiene block copolymer film and the superfine fiber synthetic leather base cloth, and the pressure is 4 to 5kg/cm²。

Preferably, the temperature of the vacuum suction line treatment is 160-190 ℃.

Compared with the prior art, the invention has the following beneficial effects:

the invention discloses high-performance styrene-butadiene block copolymer-based superfine fiber synthetic leather, which is prepared by compounding and attaching a styrene-butadiene block copolymer film with surface textures and a fine fiber synthetic leather base cloth styrene-butadiene block copolymer (SBS) film, and effectively solves the problem that the existing polyurethane-made superfine fiber synthetic leather is difficult to be effectively bonded with the styrene-butadiene block copolymer because the styrene-butadiene block copolymer film and the existing styrene-butadiene block copolymer-based product have the same main chain structure composition and high compatibility. The high-performance styrene-butadiene block copolymer-based superfine fiber synthetic leather prepared by the invention has soft and full hand feeling, fine and vivid surface texture, and the atomization value is less than 4mg, the smell is less than 3 grades, the surface wear resistance is more than 4 grades, and the synthetic leather can be used as a vamp material; meanwhile, the high-performance anti-skid sports shoe can be used for producing high-performance anti-skid sports shoes and can also be used as an environment-friendly skin material of an automobile seat because the high-performance anti-skid sports shoe has good bonding strength with the existing SBS injection molded sole.

The invention also discloses a production method of the high-performance styrene-butadiene block copolymer-based superfine fiber synthetic leather, which directly compounds a styrene-butadiene block copolymer (SBS) film on superfine fiber synthetic leather base cloth by adopting a thermoplastic compound treatment process technology to realize the compound lamination of the styrene-butadiene block copolymer film and the superfine fiber synthetic leather base cloth, and forms patterns on the surface of the styrene-butadiene block copolymer film by adopting a vacuum pattern absorption treatment process technology. Therefore, the production method of the high-performance styrene-butadiene block copolymer-based superfine fiber synthetic leather has the advantages of clean and environment-friendly production process.

Furthermore, the invention realizes the rolling preparation of the styrene-butadiene block copolymer film by adopting the process technology of a four-roller rolling production line; in addition, the four-roller calendering equipment, the thermoplastic composite laminating equipment and the vacuum grain sucking equipment are connected in series, so that continuous production can be realized.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It is noted that the terms first, second and the like in the description and in the claims of the present invention are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The present invention will be described in detail with reference to the following specific examples:

example 1

1) Preparation of styrene-butadiene Block copolymer (SBS) calendered Material

Weighing 50 parts of SBS, 1 part of toner, 0.2 part of AC foaming agent, 5 parts of No. 10 white oil, 1 part of stearic acid, 1 part of titanium dioxide and 0.1 part of tetrol phosphite ester by mass parts, and mixing to obtain the SBS calendering material.

2) Preparation of high-performance styrene-butadiene block copolymer-based superfine fiber synthetic leather

Rolling to form a film: putting the SBS calendered material obtained in the step 1) into a high-speed kneader and stirring for 5min, obtaining a preheated material after the temperature of the obtained SBS calendered material reaches 70 ℃, putting the preheated material into an internal mixer, gradually raising the temperature, internally mixing for 2min at 140 ℃, then putting the material into a plasticator, gradually raising the temperature, plasticating for 5min at 160 ℃ to obtain a rubber material, putting the rubber material into a four-roll calender, controlling the calendering temperature to be 150 ℃, and calendering the thickness to be 0.08 mm; obtaining an SBS film;

thermoplastic compounding: directly attaching the pressed SBS film to the island-shaped superfine fiber synthetic leather base cloth in a thermoplastic state at a fourth roller of a four-roller calender to obtain an SBS superfine fiber synthetic leather base cloth composite material;

wherein the clearance of the thermoplastic composite treatment is 50 percent of the sum of the thicknesses of the styrene-butadiene block copolymer film and the island type superfine fiber synthetic leather base cloth, and the pressure is 4kg/cm²；

③ vacuum suction texturing: and (3) enabling the SBS superfine fiber synthetic leather base cloth composite material to pass through a vacuum grain sucking machine to form patterns on the surface of the SBS film, wherein the temperature of vacuum grain sucking treatment is 160 ℃, and thus obtaining the high-performance styrene-butadiene block copolymer (SBS) base superfine fiber synthetic leather.

The high-performance styrene-butadiene block copolymer (SBS) based superfine fiber synthetic leather prepared by the embodiment has soft and full hand feeling, fine and vivid surface texture, atomization value of less than 4mg, smell of less than 3 grades and surface wear resistance of more than 4 grades, can be used as a vamp material, has good bonding strength with an SBS injection molded sole, can be used for producing high-performance anti-skid sports shoes, and can also be used as an environment-friendly skin material of an automobile seat.

Example 2

1) Preparation of styrene-butadiene Block copolymer (SBS) calendered Material

Weighing 80 parts of SBS, 5 parts of toner, 1.8 parts of AC foaming agent, 15 parts of No. 10 white oil, 2.5 parts of stearic acid, 3 parts of titanium dioxide and 0.2 part of tetrol phosphite ester by mass parts, and mixing to obtain the SBS calendering material.

2) Preparation of high-performance styrene-butadiene block copolymer-based superfine fiber synthetic leather

Rolling to form a film: putting the SBS calendered material obtained in the step 1) into a high-speed kneader and stirring for 10min, obtaining a preheated material after the temperature of the obtained SBS calendered material reaches 80 ℃, putting the preheated material into an internal mixer, gradually increasing the temperature, internally mixing for 5min at 180 ℃, then putting the material into a plasticator, gradually increasing the temperature, plasticating for 10min at 190 ℃ to obtain a rubber material, putting the rubber material into a four-roll calender, controlling the calendering temperature to be 180 ℃ and the calendering thickness to be 1.2 mm; obtaining an SBS film;

thermoplastic compounding: directly attaching the pressed SBS film to the non-island type superfine fiber synthetic leather base cloth in a thermoplastic state at a fourth roller of a four-roller calender to obtain an SBS superfine fiber synthetic leather base cloth composite material;

wherein the clearance of the thermoplastic composite treatment is 70 percent of the sum of the thicknesses of the styrene-butadiene block copolymer film and the non-figured superfine fiber synthetic leather base cloth, and the pressure is 5kg/cm²；

③ vacuum suction texturing: and (3) enabling the SBS superfine fiber synthetic leather base cloth composite material to pass through a vacuum grain sucking machine to form patterns on the surface of the SBS film, wherein the temperature of vacuum grain sucking treatment is 190 ℃, and obtaining the high-performance styrene-butadiene block copolymer (SBS) base superfine fiber synthetic leather.

The high-performance styrene-butadiene block copolymer (SBS) based superfine fiber synthetic leather prepared by the embodiment has soft and full hand feeling, fine and vivid surface texture, atomization value of less than 4mg, smell of less than 3 grades and surface wear resistance of more than 4 grades, can be used as a vamp material, has good bonding strength with an SBS injection molded sole, can be used for producing high-performance anti-skid sports shoes, and can also be used as an environment-friendly skin material of an automobile seat.

Example 3

1) Preparation of styrene-butadiene Block copolymer (SBS) calendered Material

Weighing 70 parts of SBS, 3 parts of toner, 0.7 part of AC foaming agent, 10 parts of No. 10 white oil, 1.8 parts of stearic acid, 1.5 parts of titanium dioxide and 0.16 part of tetrol phosphite ester by mass parts, and mixing to obtain the SBS calendering material.

2) Preparation of high-performance styrene-butadiene block copolymer-based superfine fiber synthetic leather

Rolling to form a film: putting the SBS calendered material obtained in the step 1) into a high-speed kneader and stirring for 7min, obtaining a preheated material after the temperature of the obtained SBS calendered material reaches 73 ℃, putting the preheated material into an internal mixer, gradually increasing the temperature, internally mixing for 3min at 165 ℃, then putting the material into a plasticator, gradually increasing the temperature, plasticating for 8min at 180 ℃ to obtain a rubber material, putting the rubber material into a four-roll calender, controlling the calendering temperature to be 175 ℃, and the calendering thickness to be 0.09 mm; obtaining an SBS film;

thermoplastic compounding: directly attaching the pressed SBS film to orange petal type superfine fiber synthetic leather base cloth in a thermoplastic state at a fourth roller of a four-roller calender to obtain an SBS superfine fiber synthetic leather base cloth composite material;

wherein the clearance of the thermoplastic composite treatment is 60 percent of the sum of the thicknesses of the styrene-butadiene block copolymer film and the orange petal type superfine fiber synthetic leather base cloth, and the pressure is 4.6kg/cm²；

③ vacuum suction texturing: and (3) enabling the SBS superfine fiber synthetic leather base cloth composite material to pass through a vacuum grain sucking machine to form patterns on the surface of the SBS film, wherein the temperature of vacuum grain sucking treatment is 183 ℃, and obtaining the high-performance styrene-butadiene block copolymer (SBS) base superfine fiber synthetic leather.

The high-performance styrene-butadiene block copolymer (SBS) based superfine fiber synthetic leather prepared by the embodiment has soft and full hand feeling, fine and vivid surface texture, atomization value of less than 4mg, smell of less than 3 grades and surface wear resistance of more than 4 grades, can be used as a vamp material, has good bonding strength with an SBS injection molded sole, can be used for producing high-performance anti-skid sports shoes, and can also be used as an environment-friendly skin material of an automobile seat.

Example 4

1) Preparation of styrene-butadiene Block copolymer (SBS) calendered Material

Weighing 63 parts of SBS, 2 parts of toner, 1.1 parts of AC foaming agent, 12 parts of No. 10 white oil, 1.7 parts of stearic acid, 2 parts of titanium dioxide and 0.18 part of tetrol phosphite ester by mass parts, and mixing to obtain the SBS calendering material.

2) Preparation of high-performance styrene-butadiene block copolymer-based superfine fiber synthetic leather

Rolling to form a film: putting the SBS calendered material obtained in the step 1) into a high-speed kneader and stirring for 9min, obtaining a preheated material after the temperature of the obtained SBS calendered material reaches 78 ℃, putting the preheated material into an internal mixer, gradually increasing the temperature, internally mixing for 4min at 150 ℃, then putting the material into a plasticator, gradually increasing the temperature, plasticating for 7min at 170 ℃ to obtain a rubber material, putting the rubber material into a four-roll calender, controlling the calendering temperature to be 160 ℃, and calendering the thickness to be 1.1 mm; obtaining an SBS film;

thermoplastic compounding: directly attaching the pressed SBS film to the island-shaped superfine fiber synthetic leather base cloth in a thermoplastic state at a fourth roller of a four-roller calender to obtain an SBS superfine fiber synthetic leather base cloth composite material;

wherein the clearance of the thermoplastic composite treatment is 55 percent of the sum of the thicknesses of the styrene-butadiene block copolymer film and the island-shaped superfine fiber synthetic leather base cloth, and the pressure is 4.2kg/cm²；

③ vacuum suction texturing: and (3) enabling the SBS superfine fiber synthetic leather base cloth composite material to pass through a vacuum grain sucking machine to form patterns on the surface of the SBS film, wherein the temperature of vacuum grain sucking treatment is 168 ℃, and thus obtaining the high-performance styrene-butadiene block copolymer (SBS) base superfine fiber synthetic leather.

The high-performance styrene-butadiene block copolymer (SBS) based superfine fiber synthetic leather prepared by the embodiment has soft and full hand feeling, fine and vivid surface texture, atomization value of less than 4mg, smell of less than 3 grades and surface wear resistance of more than 4 grades, can be used as a vamp material, has good bonding strength with an SBS injection molded sole, can be used for producing high-performance anti-skid sports shoes, and can also be used as an environment-friendly skin material of an automobile seat.

Example 5

1) Preparation of styrene-butadiene Block copolymer (SBS) calendered Material

Weighing 75 parts of SBS, 4 parts of toner, 0.4 part of AC foaming agent, 8.5 parts of No. 10 white oil, 1.3 parts of stearic acid, 2.2 parts of titanium dioxide and 0.13 part of tetrol phosphite ester by mass parts, and mixing to obtain the SBS calendering material.

2) Preparation of high-performance styrene-butadiene block copolymer-based superfine fiber synthetic leather

Rolling to form a film: putting the SBS calendered material obtained in the step 1) into a high-speed kneader and stirring for 8min, obtaining a preheated material after the temperature of the obtained SBS calendered material reaches 76 ℃, putting the preheated material into an internal mixer, gradually raising the temperature, internally mixing for 3min at 172 ℃, then putting the material into a plasticator, gradually raising the temperature, plasticating for 8min at 162 ℃ to obtain a rubber material, putting the rubber material into a four-roll calender, controlling the calendering temperature to be 155 ℃, and calendering the thickness to be 1.13 mm; obtaining an SBS film;

thermoplastic compounding: directly attaching the pressed SBS film to the non-island type superfine fiber synthetic leather base cloth in a thermoplastic state at a fourth roller of a four-roller calender to obtain an SBS superfine fiber synthetic leather base cloth composite material;

wherein the clearance of the thermoplastic composite treatment is 65 percent of the sum of the thicknesses of the styrene-butadiene block copolymer film and the non-figured superfine fiber synthetic leather base cloth, and the pressure is 5kg/cm²；

③ vacuum suction texturing: and (3) enabling the SBS superfine fiber synthetic leather base cloth composite material to pass through a vacuum grain sucking machine to form patterns on the surface of the SBS film, wherein the temperature of vacuum grain sucking treatment is 175 ℃, and thus obtaining the high-performance styrene-butadiene block copolymer (SBS) base superfine fiber synthetic leather.

The high-performance styrene-butadiene block copolymer (SBS) based superfine fiber synthetic leather prepared by the embodiment has soft and full hand feeling, fine and vivid surface texture, atomization value of less than 4mg, smell of less than 3 grades and surface wear resistance of more than 4 grades, can be used as a vamp material, has good bonding strength with an SBS injection molded sole, can be used for producing high-performance anti-skid sports shoes, and can also be used as an environment-friendly skin material of an automobile seat.

Example 6

1) Preparation of styrene-butadiene Block copolymer (SBS) calendered Material

Weighing 55 parts of SBS, 1.5 parts of toner, 0.6 part of AC foaming agent, 6.9 parts of No. 10 white oil, 1.4 parts of stearic acid, 2.2 parts of titanium dioxide and 0.12 part of tetrol phosphite ester by mass parts, and mixing to obtain the SBS calendering material.

2) Preparation of high-performance styrene-butadiene block copolymer-based superfine fiber synthetic leather

Rolling to form a film: putting the SBS calendered material obtained in the step 1) into a high-speed kneader and stirring for 6min, obtaining a preheated material after the temperature of the obtained SBS calendered material reaches 72 ℃, putting the preheated material into an internal mixer, gradually increasing the temperature, internally mixing for 5min at 143 ℃, then putting the preheated material into a plasticator, gradually increasing the temperature, plasticating for 10min at 163 ℃ to obtain a rubber material, putting the rubber material into a four-roll calender, controlling the calendering temperature to be 152 ℃, and calendering the thickness to be 1.17 mm; obtaining an SBS film;

thermoplastic compounding: directly attaching the pressed SBS film to orange petal type superfine fiber synthetic leather base cloth in a thermoplastic state at a fourth roller of a four-roller calender to obtain an SBS superfine fiber synthetic leather base cloth composite material;

wherein the clearance of the thermoplastic composite treatment is 65 percent of the sum of the thicknesses of the styrene-butadiene block copolymer film and the orange petal type superfine fiber synthetic leather base cloth, and the pressure is 4.5kg/cm²；

③ vacuum suction texturing: and (3) enabling the SBS superfine fiber synthetic leather base cloth composite material to pass through a vacuum grain sucking machine to form patterns on the surface of the SBS film, wherein the temperature of vacuum grain sucking treatment is 172 ℃, and thus obtaining the high-performance styrene-butadiene block copolymer (SBS) base superfine fiber synthetic leather.

The high-performance styrene-butadiene block copolymer (SBS) based superfine fiber synthetic leather prepared by the embodiment has soft and full hand feeling, fine and vivid surface texture, atomization value of less than 4mg, smell of less than 3 grades and surface wear resistance of more than 4 grades, can be used as a vamp material, has good bonding strength with an SBS injection molded sole, can be used for producing high-performance anti-skid sports shoes, and can also be used as an environment-friendly skin material of an automobile seat.

In conclusion, the invention relates to the technical field of superfine fiber synthetic leather, and particularly relates to high-performance SBS (styrene butadiene styrene) based superfine fiber synthetic leather and a production method thereof. The invention relates to high-performance SBS (styrene butadiene styrene) superfine fiber synthetic leather, which is a flexible composite material with a two-layer composite structure, wherein the upper layer is a styrene-butadiene block copolymer (SBS) film for short, and the lower layer is superfine fiber synthetic leather base cloth. The production method adopts four-roller calendering, thermoplastic compounding and vacuum grain-absorbing technology, directly compounds a styrene-butadiene block copolymer (SBS) film on the superfine fiber synthetic leather base cloth, and forms patterns on the surface of SBS through the vacuum grain-absorbing technology, thus obtaining the high-performance SBS superfine fiber synthetic leather. The production process of the high-performance SBS-based superfine fiber synthetic leather is clean and environment-friendly, the hand feeling is soft and full, the surface texture is fine and vivid, the atomization value is less than 4mg, the smell is less than 3 grades, the surface wear resistance is more than 4 grades, and the high-performance SBS-based superfine fiber synthetic leather can be used as a vamp material and has good adhesive strength with an SBS injection molded sole, so that the high-performance SBS-based superfine fiber synthetic leather can be used for producing high-performance anti-skidding sports shoes and can also be used as an environment-friendly skin material of.

The above-mentioned contents are only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited thereby, and any modification made on the basis of the technical idea of the present invention falls within the protection scope of the claims of the present invention.