How to extend the service life of anti-static rubber sheets
In practical applications, anti-static rubber sheets need to consider many factors. How to extend the service life of rubber sheets? Let’s take a brief look.
First of all, when we are shopping, we must choose quality products.
First, check the appearance quality of the rubber sheet. First of all, look at the color, the color of the rubber plate is golden yellow, and the whole body is translucent. The carbonized rubber plate is bronze or brown, and the color is uniform and shiny. It has medium hardness and acid and alkali resistance. It can work in a 20% acid (alkali) liquid with a temperature between -30 and +60 °C. Uses: It can be used to make a variety of gaskets with good sealing performance with acid and alkali resistance.
Second, check the paint quality of the rubber sheet. Put the floor in the light, see if there are bubbles, pitting, orange peel on the surface, and see if the paint is rich, full and flat. For example, the surface of the medium plate is plated with purple and sold as a high pressure plate. Therefore, in addition to checking the appearance quality at the time of purchase, it is mainly necessary to measure the tensile strength. In the horizontal direction of the sheet, 3 pieces of 200mm × 20mm samples are taken and tested on the tensile machine to see if it is shoddy and cut corners.
Third, the inner quality of the rubber sheet First look at the material can be used handkerchief and eye view, if the floor is lighter in the hand, the insulating rubber board shows the use of tender bamboo; if the texture is blurred, it means that the bamboo is not fresh, It is a relatively old bamboo. Nitrile rubber has excellent resistance to fuel oil and aromatic solvents, but it is not resistant to ketones, esters and chlorinated hydrocarbons. Therefore, oil-resistant sealing products are mainly made of nitrile rubber.
Fourth, the structure of the rubber sheet is symmetrically balanced from the two ends of the rubber sheet, whether it conforms to the principle of symmetrical balance, and if it conforms to the structure, it is stable.
5. See if the rubber layer's floor layer and the layer are glued tightly with two hands, whether there will be delamination. Silicone rubber has outstanding resistance to high and low temperature, ozone and weathering resistance. It can maintain its unique elasticity, ozone resistance and weather resistance in the operating temperature range of -70 ° C ~ +260 ° C. It is suitable for making thermal mechanism. Required gaskets, such as strong light source lamp cover gaskets, valve pads, etc.
The rubber sheet should be inspected at the time of purchase. The following small series will be arranged for you. The technical standard of the rubber sheet:
a. Flatness of rubber sheet surface: test with 2 m ruler, the gap should be no more than 2 mm.
b. Rubber plate surface hardness: use a sharp chisel to quickly cross-cut the surface, there should be no burst at the intersection.
c. Rubber plate surface compactness: the surface should not be too rough, and there should be no excessive pores. Surface hardening shall be applied to the slightly sanded ground.
d. Cleanness of rubber sheet surface: Residual substances such as oil, wax, paint, pigment, etc. must be removed.
e. Rubber sheet cracks: There must be no cracks with a width greater than 3 mm. There must be no empty drums on the surface.
f. Rubber sheet temperature: The paving site temperature is preferably 15oC.
g. Rubber sheets should maintain a horizontal reference. The settlement of the building shall have a seal of a suitable rubber floor.
h. According to the plan for finding the thickness of the rubber sheet and the laying time of the rubber floor, the time for screed construction and laying the rubber floor should be no less than 28 days to ensure the strength and the floor drying. In order to ensure the large-area laying effect (flatness, strength), it is recommended to use the base oil and self-leveling on the leveling layer before laying, especially in the old building.
At the end of 2015, KI's capacity database Polyglobe reported that the global annual production of thermoplastics is about 305 million tons. Thermoplastics is the largest and most important segment of all polymer materials. More than 90% of them come from standard plastics, about 9% come from industrial thermoplastics, and other thermoplastics such as high-performance polymer bio-based biodegradable plastics account for only one-thousandth of a percent.
The substantial economic growth experienced by many countries in China and Southeast Asia has turned the Asia-Pacific economic zone into the world's largest growth zone – a positive response to the global plastics industry. At the same time, Asia accounts for 46% of all plastic products produced worldwide, almost half. In 2014, more than 40% of the plastic processing machines used worldwide came from Asia. Today, China has become the most important country in all segments of the polymer industry: According to 2014 data, China accounts for 26% of global polymer production and 33% of global plastics processing machinery production. The market share has the largest share.
The large-scale expansion of polymer aggregation capabilities in Asia Pacific and the Middle East has led to a profound shift in industry statistics: 26% in China, 4% in Japan, and 16% in other Asian countries. Together, this region constitutes up to A considerable proportion of 46%. At present, Europe accounts for 20%, and the United States has 19%. Their share of global production has shrunk by several percentages. According to statistics from PlasticsEurope, the Near East, Middle East and Africa accounted for a total of 7%, Latin America was 5%, and the former CIS countries were 3%. From 2006 to 2014, Asia’s share of global plastics production increased by 5 percentage points, while the United States fell by 4 points and Europe by 2 points. According to data records, the Near East, the Middle East, Africa and Latin America have also achieved growth. Global rubber production is also a similar situation: Asia dominates the market. Asia maintains a traditional 73% high share of natural rubber production in the world, and 61% of global synthetic rubber production.