Hosepipe for conveying material containing aromatic hydrocarbons solvent
A rubber hose and aromatic hydrocarbon technology, applied in the direction of hoses, pipes, pipes/pipe joints/pipe fittings, etc., can solve the problems of complex process, increased difficulty, and difficult adhesion, etc., to reduce manufacturing costs, simplify processes, and respond good effect
Inactive Publication Date: 2010-01-20
上海橡胶制品研究所有限公司 +1
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Problems solved by technology
However, due to the shielding effect of fluorine atoms on the main chain of fluorine rubber, it is not easy to bond with other rubbers, and its vulcanization system is inconsistent with other rubbers, which makes it more difficult to compound with other rubbers. US Patent USP4806351 discloses A method of compounding fluorine rubber and nitrile rubber is said to be used in the manufacture of rubber hoses, but in the manufacture of pressure-resistant cloth hoses, general factories usually use fabrics coated with natural rubber mortar or latex as For the cloth layer, the transition layer based on nitrile rubber has poor adhesion to natural rubber. If the glue with nitrile rubber as the main body is used to wipe the cloth layer, it is not only complicated in process but also difficult to balance with natural rubber. The outer rubber layer is usually made of neoprene rubber with excellent aging resistance and ozone resistance to achieve adhesion
Method used
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Embodiment 1、2 and comparative example 1
[0020] see figure 1 , adopting the traditional cloth hose molding process, wrap the inner lining layer [1] mainly made of fluorine rubber on the Φ38mm mandrel on the molding machine, and the thickness of the rubber layer is 0.8mm; then the inner lining layer [1] Cover the transition layer [2] made of specially matched neoprene rubber, the thickness of the glue layer is 1.5mm, and then cover the reinforcing cloth layer [3] made of rubberized fabric, the cloth layer is made of It is composed of 5 layers of vinylon plain cloth coated with natural rubber glue, and finally the outer rubber layer [4] mainly composed of aging-resistant neoprene rubber is wrapped outside the sandwich layer, and the thickness of the rubber layer is 2.5mm.
[0021] The compounding of the rubber materials used in each adhesive layer (the amounts of each component are parts by weight) is shown in Table 1.
[0022] Table 1
[0023]
[0024]
[0025] Table 2 shows the performance of the rubber hose ...
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A rubber rose for conveying solvent containing aromatic hydrocarbons is compounded by multi-layer rose walls. The rubber rose is characterized in that: the multi-layer rose walls comprise a lining layer which takes a fluororubber as a main body, a transmission layer made from specially matched chloroprene rubber, an enforced fabric inserting layer mainly made of rubber coated textile, and an outer rubber layer which takes anti-aging matched fluoroprene rubber as a main body.
Description
technical field [0001] The invention relates to the rubber product industry in the field of chemical industry, that is, the rubber hose industry, in particular to a rubber hose that can be used to transport materials containing aromatic hydrocarbon solvents. Background technique [0002] Aromatic hydrocarbon solvents represented by toluene and xylene are widely used in chemical industries such as ink, paint, coatings, and plastics, and in order to avoid pollution to the environment, closed pipelines are often used to transport such solvents and materials containing such solvents Therefore, in some occasions, it is inevitable to use flexible pipes such as rubber hoses (hereinafter referred to as rubber hoses) for connection and transportation. The problem is that commonly used rubber materials, including nitrile rubber known for its oil resistance, are not resistant to this type of fragrance. Hydrocarbon solvents, the rubber hoses made of them will soon be damaged and scrappe...
Claims
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IPC IPC(8): F16L11/08
Inventor 潘晓天范强
Owner 上海橡胶制品研究所有限公司