阅读说明：本技术 一种易分散高含量母粒及其制备方法与应用 (Easily-dispersible high-content master batch and preparation method and application thereof ) 是由 张永毅 翟建峰 朱军 周涛 陈名海 李畅东 于 2019-12-05 设计创作，主要内容包括：本发明公开了一种易分散高含量母粒及其制备方法与应用。所述母粒包括按照重量份计算的如下组分：载体2-20份、填料80-98份、分散剂2-5份、偶联剂0.1-2份、表面活性剂0.1-2份及抗菌剂1-9份；其中,所述载体包括聚乙二醇和/或聚乙烯吡咯烷酮,所述填料的尺寸为微米级和/或微米级以下。本发明的制备方法具有工艺简单,能耗极低,成本较低,加工温度低等优点,同时本发明的母粒中有效成分含量高,能够和绝大多数聚合物树脂进行很好地融合。(The invention discloses an easily dispersible high-content master batch and a preparation method and application thereof. The master batch comprises the following components in parts by weight: 2-20 parts of carrier, 80-98 parts of filler, 2-5 parts of dispersant, 0.1-2 parts of coupling agent, 0.1-2 parts of surfactant and 1-9 parts of antibacterial agent; wherein the carrier comprises polyethylene glycol and/or polyvinylpyrrolidone, and the filler has micron-sized and/or below micron-sized dimensions. The preparation method has the advantages of simple process, extremely low energy consumption, low cost, low processing temperature and the like, and meanwhile, the master batch has high content of effective components and can be well fused with most of polymer resins.)

1. An easily dispersible high-content master batch is characterized by comprising the following components in parts by weight: 2-20 parts of carrier, 80-98 parts of filler, 2-5 parts of dispersant, 0.1-2 parts of coupling agent, 0.1-2 parts of surfactant and 1-9 parts of antibacterial agent; wherein the carrier comprises polyethylene glycol and/or polyvinylpyrrolidone, and the filler has micron-sized and/or below micron-sized dimensions.

2. The readily dispersible high content masterbatch of claim 1, characterized by: the carrier comprises any one or the combination of more than two of PEG-2000, PEG-4000, PVP-K30, PVP-K60, PVP-K90 and PVP-K120.

3. The readily dispersible high content masterbatch of claim 1, characterized by: the filler comprises inorganic powder, preferably any one or a combination of more than two of Ketjen black, carbon nano tubes, graphene, carbon fiber powder, titanium dioxide, lithopone, ferric oxide, calcium carbonate, talcum powder, cobalt blue, bismuth yellow, titanium nickel yellow and cerium red.

4. The readily dispersible high content masterbatch of claim 1, characterized by: the dispersant comprises any one or the combination of more than two of sodium dodecyl benzene sulfonate, sodium dodecyl sulfate and sodium stearate;

and/or, the coupling agent comprises bis (dioctyloxypyrophosphate) ethylene titanate chelate; preferably, the bis (dioctyloxypyrophosphate) ethylene titanate chelate comprises any one or a combination of more than two of DN-8311W, DN-9311, KH-450, KH550, KH560, KH570, KH602 and KH 792; preferably, the coupling agent comprises DN-8311W and/or DN-9311;

and/or, the surfactant comprises fatty acid diethanolamide;

and/or, the antimicrobial agent comprises vanillin.

5. A preparation method of master batch with easy dispersion and high content is characterized by comprising the following steps:

(1) uniformly mixing a carrier, a filler, a dispersing agent, a coupling agent, a surfactant, an antibacterial agent and a solvent according to the composition of the easily-dispersible high-content master batch of any one of claims 1 to 4 to form slurry, and then drying the slurry to form paste;

(2) and (3) carrying out single-screw cutting granulation and drying treatment on the paste to obtain the master batch with high dispersibility and high content.

6. The method of claim 5, wherein the solvent comprises water and/or ethanol; preferably water.

7. The production method according to claim 5, characterized by comprising: dispersing a carrier in a solvent, adding a dispersing agent, a coupling agent, a surfactant and an antibacterial agent at 25-80 ℃, uniformly stirring until the dispersing agent, the coupling agent, the surfactant and the antibacterial agent are completely dissolved, adding a filler, and uniformly stirring to obtain the slurry;

preferably, the stirring time after the filler is added is 20-60min, and the rotating speed is 300-1000 rpm.

8. The method of claim 5, wherein: the temperature for drying the slurry is 70-150 ℃.

9. The method of claim 5, wherein: the rotating speed of the single screw for cutting and granulating is 50-500 rpm;

and/or the temperature of the drying treatment in the step (2) is 80-150 ℃.

10. Use of the readily dispersible high content masterbatch of any one of claims 1-4 in the preparation of high performance plastics.

Technical Field

The invention belongs to the technical field of plastic master batch preparation, and particularly relates to an easily-dispersible high-content master batch as well as a preparation method and application thereof.

Background

With the development of society, the diversified demands of people are increased, and the requirements on the functions of plastics are increased. In the traditional method, structure regulation and control are carried out on plastics, plastic alloy is prepared, and functional filler is added to improve the performance of the plastics. The structure regulation and control technology can realize performance enhancement without increasing the number of plastic phases, but the development difficulty is higher, the influence on the performance of a plastic body is larger, the development period is longer, the failure rate is higher, the development cost is higher, the structure regulation and control technology is mainly used for high-end materials, and the existing problems are difficult to solve rapidly. The plastic alloy can be used for integrating the excellent performances of various plastics and improving the performances of the plastics, but the limitation is obvious, so that the limitation on the performances of a composite body made of various materials is difficult to break through, and the performances of a certain aspect are difficult to greatly improve. Compared with the appearance and development of the master batch technology, the performance of the plastic is greatly improved, and the application field of the plastic is expanded.

Disclosure of Invention

The invention mainly aims to provide an easily-dispersible high-content master batch, and a preparation method and application thereof, so as to overcome the defects of the prior art.

In order to achieve the purpose, the technical scheme adopted by the invention comprises the following steps:

the embodiment of the invention provides an easily-dispersible high-content master batch, which comprises the following components in parts by weight: 2-20 parts of carrier, 80-98 parts of filler, 2-5 parts of dispersant, 0.1-2 parts of coupling agent, 0.1-2 parts of surfactant and 1-9 parts of antibacterial agent; wherein the carrier comprises polyethylene glycol and/or polyvinylpyrrolidone, and the filler has micron-sized and/or below micron-sized dimensions.

The embodiment of the invention also provides a preparation method of the master batch with easy dispersion and high content, which comprises the following steps:

(1) uniformly mixing a carrier, a filler, a dispersing agent, a coupling agent, a surfactant, an antibacterial agent and a solvent according to the composition of the master batch with high dispersibility and content to form slurry, and then drying the slurry to form paste;

(2) and (3) carrying out single-screw cutting granulation and drying treatment on the paste to obtain the master batch with high dispersibility and high content.

The embodiment of the invention also provides application of the easy-to-disperse high-content master batch in preparation of high-performance plastics.

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

1) the preparation process of the invention is extremely simple, has extremely low energy consumption, lower cost and lower processing temperature, has larger difference compared with the prior art which uses double screws and high temperature environment, and is suitable for the requirements of low emission and safe production;

2) compared with the traditional master batch preparation technology, the filler related by the invention is completely soaked by the solvent to prepare the slurry, so that dust is effectively avoided, and meanwhile, the master batch of the invention has high content of effective components;

3) compared with the traditional antistatic master batch, the carrier used in the invention is low-polymerization-degree polyethylene glycol and polyvinylpyrrolidone, wherein the polyethylene glycol has a low melting point, is volatile at high temperature and is easy to remove from the composite material; the polyvinyl pyrrolidone has high viscosity and good resin affinity, so the plastic master batch prepared by the invention can be well fused with most of polymer resins.

Detailed Description

In view of the defects of the prior art, the inventor of the present invention has long studied and largely practiced to propose the technical solution of the present invention, which will be clearly and completely described below, and it is obvious that the described embodiments are a part of the embodiments of the present invention, but 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.

One aspect of the embodiment of the present invention provides an easily dispersible high content masterbatch, which comprises the following components in parts by weight: 2-20 parts of carrier, 80-98 parts of filler, 2-5 parts of dispersant, 0.1-2 parts of coupling agent, 0.1-2 parts of surfactant and 1-9 parts of antibacterial agent.

Further, the carrier includes any one of polyethylene glycol and polyvinylpyrrolidone, and is not limited thereto.

Further, the size of the filler is below the micron level.

In some more specific embodiments, the vehicle includes any one or a combination of two or more of PEG-2000, PEG-4000, PVP-K30, PVP-K60, PVP-K90, and PVP-K120, without limitation.

Further, the filler includes any one or a combination of two or more of ketjen black, carbon nanotubes, graphene, carbon fiber powder, titanium dioxide, lithopone, iron oxide, calcium carbonate, talc powder, cobalt blue, bismuth yellow, titanium nickel yellow, and cerium red, but is not limited thereto.

Further, the dispersant includes any one or a combination of two or more of sodium dodecylbenzenesulfonate, sodium dodecylsulfate, and sodium stearate, and is not limited thereto.

Further, the coupling agent includes bis (dioctyloxypyrophosphate) ethylene titanate chelate, and is not limited thereto.

Further, the bis (dioctyloxypyrophosphate) ethylene titanate chelate includes any one or a combination of two or more of DN-8311W, DN-9311, KH-450, KH550, KH560, KH570KH602, KH792, and is not limited thereto.

Further, the coupling agent includes any one of DN-8311W, DN-9311, and is not limited thereto.

Further, the surfactant includes fatty acid diethanolamide, and is not limited thereto.

Further, the antimicrobial agent includes vanillin, and is not limited thereto.

Another aspect of the embodiments of the present invention further provides a method for preparing an easily dispersible high content filler masterbatch, which includes:

(1) uniformly mixing a carrier, a filler, a dispersing agent, a coupling agent, a surfactant, an antibacterial agent and a solvent according to the composition of the master batch with high dispersibility and content to form slurry, and then drying the slurry to form paste;

(2) and (3) carrying out single-screw cutting granulation and drying treatment on the paste to obtain the master batch with high dispersibility and high content.

Further, the solvent includes any one of water and ethanol, and is not limited thereto.

Further, the solvent is preferably water.

In some more specific embodiments, the preparation method comprises: dispersing a carrier in a solvent, adding a dispersing agent, a coupling agent, a surfactant and an antibacterial agent at 25-80 ℃, uniformly stirring until the dispersing agent, the coupling agent, the surfactant and the antibacterial agent are completely dissolved, adding a filler, and uniformly stirring to obtain the slurry.

Further, the stirring time after the filler is added is 20-60min, and the rotating speed is 300-1000 rpm.

Further, the temperature for drying the slurry is 70-150 ℃.

Further, the rotating speed of the single-screw cutting granulation is 50-500 rpm.

Further, the temperature of the drying treatment in the step (2) is 80-150 ℃, and the master batch is completely dried.

The embodiment of the invention also provides application of the easily-dispersible high-content master batch in preparation of high-performance plastics.

The technical solution of the present invention is further described in detail with reference to several preferred embodiments, which are implemented on the premise of the technical solution of the present invention, and detailed embodiments and specific operation procedures are given, but the scope of the present invention is not limited to the following embodiments.

The experimental materials used in the examples used below were all available from conventional biochemical reagents companies, unless otherwise specified.