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Views: 8 Author: Site Editor Publish Time: 2021-01-19 Origin: Site
As a new coating material, polyurea has changed the concept and cognition of previous coatings by engineers and added new knowledge of coatings. Since the polyurea coating can withstand the full impact of a sledgehammer and the most severe abrasion, it also has satisfactory flexibility. When the obvious expansion and contraction causes concrete cracking or steel structure deformation, the coating film will not crack, even Under abnormal conditions such as outstanding pipelines and sinking, it can still cover the entire surface of the workpiece. Let's take a look at the detailed composition of polyurea spraying.
1. Polyurea spraying: It is an elastomer substance produced by the reaction of amino compound component and isocyanate component. Isocyanates can be both aromatic and aliphatic. The amino compound component in between can be monomers, polymers, isocyanate derivatives, prepolymers and semi-prepolymers.
2. Prepolymers and semi-prepolymers are made by reacting amino-terminated or hydroxyl-terminated compounds with isocyanate. The R component must be composed of an amino-terminated resin and an amino-terminated chain extender. The amino-terminated resin must not contain any hydroxyl components and catalysts, but can contain additives that facilitate the dispersion of the pigment.
Due to the demand of the production scale, many manufacturers will choose small polyurethane infusion foaming machine to help products for foaming, which can be more convenient for bonding, and in the subsequent use of the process is also more convenient for maintenance. So what are the characterist
Spring Festival does not close, for this year's Spring Festival holiday, CNMC Machinery's Ali International Station store got a good start. We started the year with a salesman, we harvested more than 1.4 million in sales, of which the largest single order reached one million.CNMC Machinery is a subs
Polyurethane sprayers may require special coatings and construction parameters when working with certain specialized types of wood. The following are some common types of specialty woods:
In 2023, Rencheng District, Jining City, adhering to Xi Jinping's new era of socialism with Chinese characteristics as the guide, the high quality of investment and high level of opening up as the most direct and effective way to achieve high-quality development of the economy to grasp, go all out t
All family members.According to the provisions of the national statutory holidays, and in conjunction with the actual situation of the company, the New Year's Day holiday in 2024 is now made as follows.First, December 30th (this Saturday) to January 1st (next Monday) holiday, a total of 3 days.Janua
Spray gun: Responsible for ejecting the polyurethane coating, typically consisting of a nozzle, nozzle cap, nozzle throat, and trigger.Coating chamber: Provides a sealed environment to maintain the stability of the spraying process, preventing external impurities from entering. It is usually made of
The 134th Canton Fair will be held on October 15, 2023 in Guangzhou. Canton Fair is China's largest and most comprehensive international trade fair with the most complete range of commodities and the best turnover effect. Shandong Hightop Group, as a self-developed manufacturer and exporter, will di
All family members:According to the provisions of the national statutory holidays, and in conjunction with the actual situation of the company, now the Mid-Autumn Festival and National Day holiday to make the following arrangements: First, September 29 (this Friday) to October 6 (the next Friday) ho
Rigid polyurethane foam is widely used in Europe and the United States for building roofs, walls, ceilings, floors, doors and windows, and other thermal insulation materials because of its light weight, low thermal conductivity, good heat resistance, aging resistance, easy to bond with other substra
On July 15, CNMC-E3 polyurethane spraying machine produced by Winter Machinery was loaded in Winter Industrial Park and will be exported to Russia soon.CNMC-E3 polyurethane spraying machine is widely used in industrial maintenance, tunnels, subways, waterproofing of road base, foam film and televisi
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