阅读说明：本技术 适用于水中可漂浮的弹性体tpe发泡材料制备方法 (Preparation method of elastomer TPE (thermoplastic elastomer) foam material capable of floating in water ) 是由 田飞 郭新春 于 2020-04-05 设计创作，主要内容包括：本发明涉及TPE发泡材料技术领域,且公开了适用于水中可漂浮的弹性体TPE发泡材料,包括聚丙烯、氢化苯乙烯-丁二烯-苯乙烯嵌段共聚物、白矿油、乙烯-丙烯酸烯烃共聚物、抗铜耐害剂和高分子硅酮母粒。该适用于水中可漂浮的弹性体TPE发泡材料制备方法,具备使得制成品的柔软性、抗压性、耐磨性比以前得到了很大的提高；大大提高了塑料制成品以往在水中及水下使用的漂浮率,解决了以往制品在水中漂浮率偏低、偏硬、不耐磨的问题；使得制成品的热稳定性、耐候性及抗紫外线能力显著提升,有效降低使用成本及增加使用周期的优点,解决了现有材料存在漂浮率及在水中环境使用下的柔软性、可靠性、耐候性均达不到要求的问题。(The invention relates to the technical field of TPE (thermoplastic elastomer) foaming materials, and discloses an elastomer TPE foaming material which is suitable for floating in water, wherein the elastomer TPE foaming material comprises polypropylene, hydrogenated styrene-butadiene-styrene block copolymer, white mineral oil, ethylene-acrylic acid olefin copolymer, copper-resistant and harmful-resistant agent and high-molecular silicone master batch. The preparation method of the elastomer TPE foaming material which is suitable for floating in water has the advantages that the softness, the pressure resistance and the wear resistance of a finished product are greatly improved compared with the prior art; the floating rate of the plastic finished product used in water and underwater in the past is greatly improved, and the problems of low floating rate, hardness and non-wear resistance of the past product in water are solved; the heat stability, the weather resistance and the ultraviolet resistance of the finished product are obviously improved, the use cost is effectively reduced, the use period is effectively prolonged, and the problems that the floating rate and the softness, the reliability and the weather resistance of the existing material under the use in the water environment can not meet the requirements are solved.)

1. Elastomer TPE expanded material suitable for aquatic floatability, its characterized in that: the paint comprises polypropylene, hydrogenated styrene-butadiene-styrene block copolymer, white mineral oil, ethylene-acrylic acid olefin copolymer, copper-resistant and harmful-resistant agent and high-molecular silicone master batch, and the weight percentage of each raw material is as follows:

2. an elastomeric TPE foam suitable for floating in water as claimed in claim 1 wherein: the polypropylene is a homopolymerization type injection molding PP material with good fluidity.

3. An elastomeric TPE foam suitable for floating in water as claimed in claim 1 wherein: the hydrogenated styrene-butadiene-styrene block copolymer has a YH-503 linear structure, wherein the mass ratio of the S component to the B component is 30/70.

4. A process for preparing an elastomeric TPE foam suitable for floating in water according to claim 1, wherein: the method comprises the following steps:

the method comprises the following steps: stock preparation

The weight percentage of the raw materials is as follows: 7-15% of polypropylene, 20-45% of hydrogenated styrene-butadiene-styrene block copolymer, 20-40% of white mineral oil, 20-35% of ethylene-acrylic acid olefin copolymer, 0.1-5% of copper-resistant agent and 2-5% of high polymer silicone master batch, wherein the polypropylene, the hydrogenated styrene-butadiene-styrene block copolymer, the white mineral oil, the ethylene-acrylic acid olefin copolymer, the copper-resistant agent and the high polymer silicone master batch with proper weight are selected and accurately weighed by an electronic balance, and the error is ensured to be within 1 g;

step two: pretreatment of

Transferring the weighed hydrogenated styrene-butadiene-styrene block copolymer and the white mineral oil in the step one to a high-speed mixer for high-speed mixing and stirring, and standing after stirring;

step three: refining premix

Putting the weighed polypropylene, the ethylene-acrylic acid olefin copolymer, the copper-resistant harm agent and the high-molecular silicone master batch in the first step into a high-speed mixer in the second step, and keeping a certain temperature for continuously stirring and mixing to obtain a premix;

step four: extrusion granulation

Transferring the premix obtained in the third step into a double-screw extruder for extrusion granulation to obtain master batches;

step five: foaming material

And (4) synchronously adding the master batch and the chemical foaming agent obtained in the fourth step into a high-speed mixer for rapid mixing to obtain the final TPE foaming material.

5. The method of claim 4 for preparing a TPE foam suitable for floating in water, wherein the TPE foam is characterized in that: and the stirring speed of the high-speed mixer in the step two is 600r/min, and the stirring is continuously carried out for 10 min.

6. The method of claim 4 for preparing a TPE foam suitable for floating in water, wherein the TPE foam is characterized in that: and standing the mixed and stirred materials in the step two for 40 min.

7. The method of claim 4 for preparing a TPE foam suitable for floating in water, wherein the TPE foam is characterized in that: and the stirring speed of the high-speed mixer in the third step is 1200r/min, the stirring is continued for 10min, and the temperature of the high-speed mixer is kept between 110 and 120 ℃.

8. The method of claim 4 for preparing a TPE foam suitable for floating in water, wherein the TPE foam is characterized in that: and the basic temperature in the fourth step is controlled to be 175-200 ℃.

9. The method of claim 4 for preparing a TPE foam suitable for floating in water, wherein the TPE foam is characterized in that: and D, stirring the high-speed mixer in the step five at the stirring speed of 1200r/min, and continuously stirring for 15 min.

Technical Field

The invention relates to the technical field of TPE (thermoplastic elastomer) foaming materials, in particular to a preparation method of an elastomer TPE foaming material capable of floating in water.

Background

With the development of economy, plastic products are increasingly used in industry and in life. The variety of plastic articles is also very large.

The plastics used by different types of plastic products are different, and the application of the plastic products in the water environment is more and more extensive at present, but the existing materials have floating rate and have softness, reliability and weather resistance which do not meet the requirements when used in the water environment. Therefore, there is a need to provide a new plastic formulation that meets the soft, floating capabilities necessary in an aquatic environment.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the preparation method of the elastomer TPE foaming material which is suitable for floating in water, and the softness, the pressure resistance and the wear resistance of the finished product are greatly improved compared with the prior art; the floating rate of the plastic finished product used in water and underwater in the past is greatly improved, and the problems of low floating rate, hardness and non-wear resistance of the past product in water are solved; the heat stability, the weather resistance and the ultraviolet resistance of the finished product are obviously improved, the use cost is effectively reduced, the use period is effectively prolonged, and the problems that the floating rate and the softness, the reliability and the weather resistance of the existing material under the use in the water environment can not meet the requirements are solved.

(II) technical scheme

The softness, the pressure resistance and the wear resistance of the finished product are greatly improved compared with the prior art; the floating rate of the plastic finished product used in water and underwater in the past is greatly improved, and the problems of low floating rate, hardness and non-wear resistance of the past product in water are solved; the heat stability, weather resistance and ultraviolet resistance of the finished product are obviously improved, the use cost is effectively reduced, and the use period is effectively prolonged, and the invention provides the following technical scheme: the elastomer TPE foaming material suitable for floating in water comprises polypropylene, hydrogenated styrene-butadiene-styrene block copolymer, white mineral oil, ethylene-acrylic acid olefin copolymer, copper-resistant harm-resistant agent and high-molecular silicone master batch, and the elastomer TPE foaming material comprises the following raw materials in percentage by weight:

preferably, the polypropylene is a homopolymerization injection molding grade PP material with better fluidity.

Preferably, the hydrogenated styrene-butadiene-styrene block copolymer has a YH-503 linear structure, wherein the mass ratio of the S component to the B component is 30/70.

The preparation method of the elastomer TPE foaming material suitable for floating in water comprises the following steps:

the method comprises the following steps: stock preparation

The weight percentage of the raw materials is as follows: 7-15% of polypropylene, 20-45% of hydrogenated styrene-butadiene-styrene block copolymer, 20-40% of white mineral oil, 20-35% of ethylene-acrylic acid olefin copolymer, 0.1-5% of copper-resistant agent and 2-5% of high polymer silicone master batch, wherein the polypropylene, the hydrogenated styrene-butadiene-styrene block copolymer, the white mineral oil, the ethylene-acrylic acid olefin copolymer, the copper-resistant agent and the high polymer silicone master batch with proper weight are selected and accurately weighed by an electronic balance, and the error is ensured to be within 1 g;

step two: pretreatment of

Transferring the weighed hydrogenated styrene-butadiene-styrene block copolymer and the white mineral oil in the step one to a high-speed mixer for high-speed mixing and stirring, and standing after stirring;

step three: refining premix

Putting the weighed polypropylene, the ethylene-acrylic acid olefin copolymer, the copper-resistant harm agent and the high-molecular silicone master batch in the first step into a high-speed mixer in the second step, and keeping a certain temperature for continuously stirring and mixing to obtain a premix;

step four: extrusion granulation

Transferring the premix obtained in the third step into a double-screw extruder for extrusion granulation to obtain master batches;

step five: foaming material

And (4) synchronously adding the master batch and the chemical foaming agent obtained in the fourth step into a high-speed mixer for rapid mixing to obtain the final TPE foaming material.

Preferably, the stirring speed of the high-speed mixer in the second step is 600r/min, and the stirring is continued for 10 min.

Preferably, the mixed and stirred materials in the second step are kept still for 40 min.

Preferably, the stirring speed of the high-speed mixer in the third step is 1200r/min, the stirring is continued for 10min, and the temperature of the high-speed mixer is kept between 110 ℃ and 120 ℃.

Preferably, the base temperature in the fourth step is controlled to be 175-200 ℃.

Preferably, the stirring speed of the high-speed mixer in the fifth step is 1200r/min, and the stirring is continued for 15 min.

(III) advantageous effects

Compared with the prior art, the invention provides the preparation method of the elastomer TPE foaming material which is suitable for floating in water, and the preparation method has the following beneficial effects:

the preparation method of the elastomer TPE foaming material suitable for floating in water adopts polypropylene, hydrogenated styrene-butadiene-styrene block copolymer, white mineral oil, ethylene-acrylic acid olefin copolymer, copper-resistant and harmful-resistant agent and high-molecular silicone master batch to prepare the TPE foaming material, wherein the polypropylene can resist corrosion of acid, alkali, salt solution and various organic solvents at the temperature of below 80 ℃, is thermoplastic synthetic resin with excellent performance, and has chemical resistance, heat resistance, electrical insulation, high-strength mechanical property and good high-wear-resistance processing performance; the hydrogenated styrene-butadiene-styrene block copolymer can adjust viscosity, hardness, softness, cohesiveness and flex resistance, has excellent tensile strength, elasticity and electrical property, small permanent deformation, good flex and rebound resilience, large surface friction, ozone, oxygen and ultraviolet irradiation resistance; the white mineral oil is a mixture of refined liquid hydrocarbons obtained from petroleum, and has good yellowing resistance, oxidation resistance and viscosity-temperature performance; the ethylene-acrylic acid olefin copolymer has good wear resistance, low temperature resistance, adhesion and colorability; the high molecular silicone master batch is used as a scratch resistant auxiliary agent, the silicone master batch is an ultrahigh molecular weight plastic high-efficiency lubricant without an organic carrier, the defect that the traditional silicone oil is easy to separate out as a plastic lubricant is overcome, the friction coefficient is obviously reduced, the smoothness is improved, the surface gloss is improved, the surface silky touch feeling is enhanced, and the wear resistance and scratch resistance are improved; the floating rate of the plastic finished product used in water and underwater in the past is greatly improved, and the problems of low floating rate, hardness and non-wear resistance of the past product in water are solved; the heat stability, the weather resistance and the ultraviolet resistance of the finished product are obviously improved, the use cost is effectively reduced, and the use period is prolonged.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all 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.

The elastomer TPE foaming material suitable for floating in water comprises polypropylene, hydrogenated styrene-butadiene-styrene block copolymer, white mineral oil, ethylene-acrylic acid olefin copolymer, copper-resistant harm-resistant agent and high-molecular silicone master batch, and the elastomer TPE foaming material comprises the following raw materials in percentage by weight:

the polypropylene is a homopolymerization type injection molding grade PP material with better fluidity.

The hydrogenated styrene-butadiene-styrene block copolymer had a YH-503 linear structure, wherein the mass ratio of the S component to the B component was 30/70.

The preparation method of the elastomer TPE foaming material suitable for floating in water comprises the following steps:

the method comprises the following steps: stock preparation

The weight percentage of the raw materials is as follows: 7-15% of polypropylene, 20-45% of hydrogenated styrene-butadiene-styrene block copolymer, 20-40% of white mineral oil, 20-35% of ethylene-acrylic acid olefin copolymer, 0.1-5% of copper-resistant agent and 2-5% of high polymer silicone master batch, wherein the polypropylene, the hydrogenated styrene-butadiene-styrene block copolymer, the white mineral oil, the ethylene-acrylic acid olefin copolymer, the copper-resistant agent and the high polymer silicone master batch with proper weight are selected and accurately weighed by an electronic balance, and the error is ensured to be within 1 g;

step two: pretreatment of

Transferring the weighed hydrogenated styrene-butadiene-styrene block copolymer and the white mineral oil in the step one to a high-speed mixer for high-speed mixing and stirring, and standing after stirring;

step three: refining premix

Putting the weighed polypropylene, the ethylene-acrylic acid olefin copolymer, the copper-resistant harm agent and the high-molecular silicone master batch in the first step into a high-speed mixer in the second step, and keeping a certain temperature for continuously stirring and mixing to obtain a premix;

step four: extrusion granulation

Transferring the premix obtained in the third step into a double-screw extruder for extrusion granulation to obtain master batches;

step five: foaming material

And (4) synchronously adding the master batch and the chemical foaming agent obtained in the fourth step into a high-speed mixer for rapid mixing to obtain the final TPE foaming material.

And the stirring speed of the high-speed mixer in the step two is 600r/min, and the stirring is continuously carried out for 10 min.

And standing the mixed and stirred materials in the step two for 40 min.

And the stirring speed of the high-speed mixer in the third step is 1200r/min, the stirring is continued for 10min, and the temperature of the high-speed mixer is kept between 110 and 120 ℃.

The basic temperature in the fourth step is controlled to be 175-200 ℃.

And the stirring speed of the high-speed mixer in the step five is 1200r/min, and the stirring is continuously carried out for 15 min.

In summary, the preparation method of the elastomer TPE foaming material suitable for floating in water adopts polypropylene, hydrogenated styrene-butadiene-styrene block copolymer, white mineral oil, ethylene-acrylic acid olefin copolymer, copper-resistant and harmful-resistant agent and high-molecular silicone master batch to prepare the TPE foaming material, the polypropylene can resist corrosion of acid, alkali, salt solution and various organic solvents at the temperature of below 80 ℃, is thermoplastic synthetic resin with excellent performance, and has chemical resistance, heat resistance, electrical insulation, high-strength mechanical property and good high-wear-resistance processing performance; the hydrogenated styrene-butadiene-styrene block copolymer can adjust viscosity, hardness, softness, cohesiveness and flex resistance, has excellent tensile strength, elasticity and electrical property, small permanent deformation, good flex and rebound resilience, large surface friction, ozone, oxygen and ultraviolet irradiation resistance; the white mineral oil is a mixture of refined liquid hydrocarbons obtained from petroleum, and has good yellowing resistance, oxidation resistance and viscosity-temperature performance; the ethylene-acrylic acid olefin copolymer has good wear resistance, low temperature resistance, adhesion and colorability; the high molecular silicone master batch is used as a scratch resistant auxiliary agent, the silicone master batch is an ultrahigh molecular weight plastic high-efficiency lubricant without an organic carrier, the defect that the traditional silicone oil is easy to separate out as a plastic lubricant is overcome, the friction coefficient is obviously reduced, the smoothness is improved, the surface gloss is improved, the surface silky touch feeling is enhanced, and the wear resistance and scratch resistance are improved; the floating rate of the plastic finished product used in water and underwater in the past is greatly improved, and the problems of low floating rate, hardness and non-wear resistance of the past product in water are solved; the heat stability, the weather resistance and the ultraviolet resistance of the finished product are obviously improved, the use cost is effectively reduced, and the use period is prolonged.

It is to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.