Vulcanizing system and medical chlorinated butyl rubber plug
A chlorinated butyl rubber and vulcanizing agent technology, which is applied in the directions of medical containers, medical packaging, packaging items, etc., can solve the problems of tight puncture and chipping, cumbersome manufacturing process, pollution of molds, etc., and achieves easy availability of raw materials and simple process. Effect
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Embodiment 1
[0020] Example 1: A medical chlorinated butyl rubber stopper, prepared from the following raw materials in parts by weight: 100 parts of chlorinated butyl rubber (CIIR1066), 60 parts of calcined kaolin, γ-mercaptopropyltrimethoxy 4 parts of silane, 1.5 parts of 2-mercaptobenzimidazole, 5 parts of magnesium oxide, 4 parts of titanium dioxide, and 0.6 part of carbon black.
[0021] Its preparation method includes rubber mixing, vulcanization, punching, cleaning, and drying. The rubber mixing adopts a powerful pressurized internal mixer to mix the raw materials evenly, and the mixed rubber is stripped on the open-milling equipment, and the final discharge of the internal mixing is carried out. The temperature is 85°C-95°C, the pressure of the top bolt is 0.6-0.8Mpa, and the mixing cycle is 13-15 minutes; the vulcanization adopts the injection vulcanization molding process, the vulcanization temperature is 185°C, the vulcanization pressure is 240bar, and the vulcanization clamping ...
Embodiment 2
[0028] Example 2: A medical chlorinated butyl rubber stopper, prepared from the following raw materials in parts by weight: 100 parts of chlorinated butyl rubber (CIIR1066), 40 parts of calcined kaolin, 20 parts of modified talcum powder, γ - 4 parts of aminopropyltrimethoxysilane, 1.5 parts of 2-mercaptobenzimidazole, 5 parts of zinc oxide, 4 parts of titanium dioxide, and 0.6 part of carbon black.
[0029] Its preparation method includes rubber mixing, vulcanization, punching, cleaning, and drying. Among them, the rubber mixing adopts a strong pressurized internal mixer to mix the raw materials evenly, and the mixed rubber is rolled out on the open mixing equipment, and the final mixing is carried out. The temperature of the material is 85°C-95°C, the pressure of the top bolt is 0.6-0.8Mpa, and the mixing cycle is 13-15 minutes; the vulcanization adopts the injection vulcanization molding process, the vulcanization temperature is 190°C, the vulcanization pressure is 240bar, a...
Embodiment 3
[0033] Example 3: A medical chlorinated butyl rubber stopper, prepared from the following raw materials in parts by weight: 100 parts of chlorinated butyl rubber (CIIR1066), 60 parts of calcined kaolin, γ-mercaptopropyltrimethoxy 5 parts of silane, 1 part of thiol imidazoline, 3 parts of zinc oxide, 4 parts of titanium dioxide, and 0.6 part of carbon black.
[0034] Its preparation method includes rubber mixing, vulcanization, punching, cleaning, and drying. Among them, the rubber mixing adopts a strong pressurized internal mixer to mix the raw materials evenly, and the mixed rubber is rolled out on the open mixing equipment, and the final mixing is carried out. The temperature of the material is 85°C-95°C, the pressure of the top bolt is 0.6-0.8Mpa, and the mixing cycle is 13-15 minutes; the vulcanization adopts the injection vulcanization molding process, the vulcanization temperature is 190°C, the vulcanization pressure is 240bar, and the vulcanization clamping force 400 to...
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