阅读说明：本技术 替代烤漆的两涂一烤的新型节能粉末涂料 (Novel energy-saving powder coating capable of replacing baking varnish and realizing two-coating and one-baking ) 是由 王佩国 王鹰 于 2019-10-24 设计创作，主要内容包括：本发明提供替代烤漆的两涂一烤的新型节能粉末涂料,粉末涂料加工方法为：外层涂料：在容器中加入成膜树脂35％-55％、超微粉末石墨、固化剂、填料10％-30％和助剂1％-5％,并且进行充分混合,混合结束后进行熔融高压挤出,对挤出的原料进行压片处理,压制的压片大小均匀,然后使用粉碎机对压片进行粉碎,粉碎结束后对粉末进行研磨。内层涂料：在容器中加入成膜树脂35％-55％、超微粉末石墨、固化剂、颜料、纳米铜粉、填料10％-30％和助剂1％-5％,在容器中加入并且进行充分混合,混合结束后进行熔融高压挤出,对挤出的原料进行压片处理,压制的压片大小均匀,然后使用粉碎机对压片进行粉碎,粉碎结束后对粉末进行研磨。本发明的有益效果是加快施工速度,降低环境污染。(The invention provides a novel energy-saving powder coating which replaces baking paint and is prepared by coating two times and baking one time, and the processing method of the powder coating comprises the following steps: outer layer coating: adding 35-55% of film-forming resin, 10-30% of ultrafine powder graphite, curing agent, 10-30% of filler and 1-5% of auxiliary agent into a container, fully mixing, performing melt high-pressure extrusion after mixing, performing tabletting treatment on the extruded raw materials, enabling the pressed tablets to be uniform in size, then crushing the tablets by using a crusher, and grinding the powder after crushing. Inner layer coating: adding 35-55% of film-forming resin, superfine powder graphite, a curing agent, a pigment, nano copper powder, 10-30% of filler and 1-5% of an auxiliary agent into a container, adding the materials into the container, fully mixing, performing melting and high-pressure extrusion after mixing is finished, performing tabletting treatment on the extruded raw materials, enabling the pressed tablets to be uniform in size, then crushing the tablets by using a crusher, and grinding the powder after crushing is finished. The invention has the advantages of quickening the construction speed and reducing the environmental pollution.)

1. The novel energy-saving powder coating capable of replacing baking paint and realizing two-coating and one-baking is characterized in that: the processing method of the powder coating comprises the following steps:

outer layer coating: adding 35-55% of film-forming resin, 10-30% of ultrafine powder graphite, a curing agent, a pigment, 10-30% of a filler and 1-5% of an auxiliary agent into a container, fully mixing, performing melt high-pressure extrusion after mixing is finished, performing tabletting treatment on the extruded raw materials, enabling the pressed tablets to be uniform in size, then crushing the tablets by using a crusher, and grinding the powder after crushing is finished;

inner layer coating: adding 35-55% of film-forming resin, superfine powder graphite, a curing agent, a pigment, nano copper powder, 10-30% of filler and 1-5% of an auxiliary agent into a container, adding the materials into the container, fully mixing, performing melting and high-pressure extrusion after mixing is finished, performing tabletting treatment on the extruded raw materials, enabling the pressed tablets to be uniform in size, then crushing the tablets by using a crusher, and grinding the powder after crushing is finished.

2. The new energy-saving powder coating of two-coat one-bake alternative baking finish of claim 1, characterized in that: the superfine graphite powder is in nanometer level.

3. The new energy-saving powder coating of two-coat one-bake alternative baking finish of claim 1, characterized in that: and the tabletting grinding adopts multiple times of fine grinding.

Technical Field

The invention belongs to the field of coatings, and particularly relates to a novel energy-saving powder coating which replaces baking paint and is formed by coating two times and baking one time.

Background

The existing domestic paint has the problems that toxic and harmful gas is released to the atmospheric environment by a solvent in the using process, the environment is paid a great deal of cost, the paint also causes damage to the bodies of constructors in the using process, the damage is long-term and lifelong, and the paint belongs to flammable and explosive articles and has certain danger in the transportation and storage processes, so that the paint is coated with low production efficiency and cannot be recycled.

Many manufacturers are looking for ways to reduce the VOC of the products, and therefore some special coatings use liquid coatings, so that the application of powder coatings is limited due to its own problems, such as difficulty in changing the finish and color of the booth, and the powder coatings are all one-time spray coatings, and cannot completely replace paints in performance and effect.

Disclosure of Invention

The invention aims to provide a novel energy-saving powder coating which is simple to process, is environment-friendly, replaces baking paint, is coated with two layers and baked with one layer, and is particularly suitable for home decoration work.

The technical scheme of the invention is as follows: the novel energy-saving powder coating replacing baking paint and adopting two-coating one-baking technology comprises the following steps:

outer layer coating: adding 35-55% of film-forming resin, 10-30% of ultrafine powder graphite, curing agent, pigment, filler and 1-5% of auxiliary agent into a container, fully mixing, performing melt high-pressure extrusion after mixing, performing tabletting treatment on the extruded raw materials, enabling the pressed tablets to be uniform in size, then crushing the tablets by using a crusher, and grinding the powder after crushing.

Inner layer coating: adding 35-55% of film-forming resin, superfine powder graphite, a curing agent, a pigment, nano copper powder, 10-30% of filler and 1-5% of an auxiliary agent into a container, adding the materials into the container, fully mixing, performing melting and high-pressure extrusion after mixing is finished, performing tabletting treatment on the extruded raw materials, enabling the pressed tablets to be uniform in size, then crushing the tablets by using a crusher, and grinding the powder after crushing is finished.

Furthermore, the superfine powder graphite is in a nanometer level.

Further, the tablet grinding adopts multiple times of fine grinding.

The invention has the advantages and positive effects that:

1. because the inner layer and the outer layer of the coating are made of different materials, the copper powder is added to the inner layer, the inner layer is transmitted by the copper powder, the heat dissipation efficiency of the inner layer is effectively improved, the wear resistance and the structural strength of the copper powder can be improved, the integral strength of the coating is effectively enhanced, the heat dissipation rates of the inner layer and the outer layer of the coating are changed, an obvious sealing layer of the two layers of the coating is given, and the defect that the common coating is sprayed twice and baked can be overcome.

2. Because pigment has been added to outer coating, and the inlayer does not have pigment to there is obvious layering, can mix colours through outer coating, if need change the colour can be convenient the outer coating of shovel change, there is the protection of inlayer coating, and the hardness of inlayer coating and slight because the reinforcing and the layering of copper powder, the coloured coating in the outside of shovel that can be convenient, make things convenient for the later stage to carry out the change of colour.

3. Compared with common coatings, the coating adopting a double-layer different structure is sprayed and baked, the integral structure layering is effectively improved, the process effect of maintaining the powder coating in the baking process is guaranteed, the appearance effect of the powder coating is guaranteed by obvious layering, the traditional paint can be replaced, the surrounding environment is protected, and the construction speed is accelerated by adopting the twice-spraying one-time baking.

Detailed Description

The novel energy-saving powder coating replacing baking paint and having two coatings and one baking comprises the following processing methods:

outer layer coating: adding 35-55% of film-forming resin, 10-30% of ultrafine powder graphite, curing agent, pigment, filler and 1-5% of auxiliary agent into a container, fully mixing, performing melt high-pressure extrusion after mixing, performing tabletting treatment on the extruded raw materials, enabling the pressed tablets to be uniform in size, then crushing the tablets by using a crusher, and grinding the powder after crushing.

Inner layer coating: adding 35-55% of film-forming resin, 10-30% of superfine powder graphite, curing agent, nano copper powder, 10-30% of filler and 1-5% of auxiliary agent into a container, adding the materials into the container, fully mixing, performing melting and high-pressure extrusion after mixing is finished, performing tabletting treatment on the extruded raw materials, enabling the pressed tablets to be uniform in size, then crushing the tablets by using a crusher, and grinding the powder after crushing is finished.

The superfine graphite powder is in nanometer level.

And the tabletting grinding adopts multiple times of fine grinding.

The working process of the example is as follows: when in use, the surface to be sprayed is cleaned, then the inner layer coating is sprayed on the surface of the equipment, then the outer layer coating is sprayed on the surface layer of the inner layer coating, and finally baking is carried out, because the copper powder is added into the inner layer coating, the heat dissipation is accelerated, the forming speed of the raw materials is accelerated, the outer layer coating still keeps the original heat dissipation speed, the structural strength of the inner layer coating is increased due to the existence of the copper powder, the curing speed is increased, the inner layer coating can not be well fused with the outer layer coating, the good layering effect of the inner layer coating and the outer layer coating is ensured, the structural stability is enhanced, the inner curing speed is enhanced, the spraying effect of the coating is improved, meanwhile, compared with the traditional process, the process is simpler, and compared with the paint with serious pollution, the powder coating has no pollution, effectively protects the surrounding environment and protects the health of constructors.

While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.