rubber photographyThe rubber photography could cover many aspects. From the perspective of a photography competition, for example, the 7th rubber photography competition organized by the rubber technology network, the content of the entries includes rubber, work, life, people, scenery, holiday travel, etc. The works are required to be original works shot after 2019. The time and place of shooting must be indicated. Each group of works must have at least 3 pictures. Each person can submit three different groups of entries. The size of the picture should not exceed 1M.(If you exceed it, you will need to use the Light Magic Hand to shrink the size), and advertisements cannot participate in the competition.
From the content of the photography works, there were photography works with rubber texture backgrounds, as well as photography works with rubber forests as the theme, such as the cover photography of the fourth issue of China Youth in 1982,"Morning of the rubber forest."
In rubber-related photography, the camera was a commonly used shooting tool. Some parts of the camera, such as the skin and rubber parts (the rubber ring on the lens, etc.), needed to be taken care of. As the age of use increased, the skin may open, and the rubber ring may turn white, hard, and crack.
At the same time, when doing rubber photography, whether it was shooting rubber products or rubber-related scenes, people, etc., the photographer would choose different camera equipment, lenses, tripods, etc. according to different shooting needs to complete the shooting work.
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Is a sponge plastic or rubber?A sponge was neither plastic nor rubber. A sponge was a three-dimensional, multi-pore, high-molecular material. It was divided into two categories, natural and artificial, according to the method of obtaining it. Natural sponge was made of sponge animals, while artificial sponge was mainly composed of pu, ps, and melamin. Although some of the artificial sponge were made of foam plastic, it could not be simply classified as plastic or rubber.
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The price of rubber wasteThe price of rubber waste fluctuated with the market. In China, the recycling price of rubber waste was generally around 1000 yuan per ton, but it might be relatively lower in some areas.
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Pvc reclaimed rubberThe reclaimed rubber was a material that had many applications in industrial production. In terms of blending of epdm-dm reclaimed rubber and polyvinyl-c horium (PVP), epdm-dm reclaimed rubber belongs to non-polar rubber, and PVP is a polar material. The blending effect of the two is poor. The use of a suitable amount of a dissolving agent can improve the compatibility effect of the rubber. For example, adding about 10% of chloride-ed polene as a dissolving agent in epdm-c horium/PVP blend material can play an obvious role in the compatibility. As the amount of chloride-ed polene in epdm-dm reclaimed rubber/PVP blend increases, the tensile strength of the blend rubber will increase. Elongation at break will increase to a certain extent. Adding EPDM reclaimed rubber to pet can improve the impact resistance of pet, the elasticity of soft products, and the low temperature resistance.
In the relevant applications of the rubber, when the rubber oil-resistant rubber sheet is prepared with the rubber as the main raw material, 10 - 30 parts of PE are added, and the hardness and oil resistance of the oil-resistant rubber sheet are obviously improved. Adding an appropriate amount of the rubber reclaimed rubber in the NPR/PVP blending material can not only ensure the oil resistance of the rubber sheet, but also help to solve the problems of the surface of the rubber oil-resistant rubber sheet being not smooth and the roller being easy to fall off during mixing, which can reduce more production costs. The outer layer rubber can be produced by using a blended material of NBPR/NPR/PVP.
From a commercial point of view, there are a variety of different prices, re-purchase rates and origin of recycled rubber products circulating in the market. The prices of different products range from a few yuan to thousands of yuan or even tens of thousands of yuan. The re-purchase rate is also quite different, and the origin is distributed in many cities.
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Aniline and rubber reactionIn the field of rubber, it had a curing effect. In 1906, it was discovered that the condensation product of the amine and carbon dioxide could replace the amine to accelerate the curing of rubber. In 1922, the accelerator DPG(D) derived from the accelerator was developed. Promoter D (Diphenoguanide) is used for continuous curing and anti-aging performance of the accelerator, such as DM and tmdt. Its synthesis process involves multi-step reactions such as condensation of carbon dioxide and amine. In addition, the amine point was an important physical performance index to measure the rubber oil. According to the principle of "similarity and compatibility", the amine point of rubber oil could roughly reflect the polar size of the oil and the composition of the oil, thus affecting the compatibility of rubber oil and rubber. The lower the amine point, the higher the aromatic content, the better the compatibility with rubber, and the better the processing performance. However, there was no mention of the direct reaction between amine and rubber. Therefore, there was no information on the direct reaction between the two. Sorry, I can't accurately answer the reaction between the two.
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