Insoluble sulfur is a long-chain polymer of sulfur. The number of sulfur atoms in the long chain is more than 106. It is called μ-sulfur in the early crystallography. It is now called ω-sulfur. It belongs to a homomorphic form of sulfur and is insoluble. The nature of carbon disulfide and rubber. Due to Kobukana ya pete ya bokangami ya carbone-carbone mpe instabilité ya structure électronique ya radical moléculaire ya chaîne moléculaire ya molayi, soufre oyo ekoki kosopana te ezali na nature métastable mpe ezali na tendance ya ko convertir na soufre solubles, IE, soufre orthorhombique, oyo ezali instabilité ya soufre{12} sexe oyo 133} sexe ya sexe oyo ezali na soufre oyo ezali na kati ya sx commodity is a mixture of insoluble and soluble sulfur, and its insoluble sulfur content can reach 98% or more. Insoluble sulfur is subject to heat loss, contact with alkaline materials or long-term storage. Since insoluble sulfur is produced by a free radical polymerization method under high heat, the product usually has a static charge, which tends to cause agglomeration of the product, Bopanzani ya ndenge moko te na kati ya composé ya caoutchouc to kosala accident ya traitement. Mpo na ntina oyo, mingi ya biloko oyo ezali na mombongo ezali biloko oyo etondi na mafuta mpe oyo ezali kopumbwa te, mpe mafuta ya naphthénique oyo etondi ekoki kokitisa charge statique mpe kobongisa bopanzani na kati ya composé ya caoutchouc.
Physical properties: Ordinary soluble sulfur is an orthorhombic crystal of S8 ring structure, which can be added to rubber. The solubility in rubber at room temperature is about 1%, and it increases with the increase of rubber temperature. When the rubber mixture is cooled to room temperature, the compound becomes a supersaturated solution of soluble sulfur, and more than 1% of the added sulfur will crystallize and migrate to the surface of the rubber to form a frost. If this kind of blooming occurs on the semi-finished rubber parts, it not only plays a role of not requiring a release agent, but also seriously affects the adhesion and molding between the rubber parts or between the rubber parts and the skeleton material, and produces sulfur in the rubber compound. The heterogeneous distribution in the veneer will result in uneven density of vulcanized rubber crosslinks, ultimately reducing the bond strength and mechanical properties of the rubber product. In contrast to soluble sulfur, the insoluble sulfur is a serrated long-chain structure, also known as μ-sulfur, which has the viscoelastic properties of ordinary polymers. As long as the mixing temperature reaches its glass transition temperature, the μ-sulfur is converted from solid to plastic. It is easy to blend with plasticized Caoutchouc. lolenge oyo ya composé ya caoutchouc oyo ezali na soufre μ, ata soki esili ko refroidir na température ya chambre, ekoki te ko cristalliser, ko migrer, mpe kosala glaçage na kati ya composé ya caoutchouc en raison ya structure ya chaîne na yango ya molayi, mpo surface ya membre ya caoutchouc ekoki ko garder ya sika mpe produit semi-fini ekoki kobongisama{{19} na ba pièces ya caoutchouc mpe na ba parties mpe na ba parties. Composé ya caoutchouc, mpe ebongisaka qualité ya vulcanisation mpe ba propriétés mécaniques ya ba produits ya caoutchouc, mingi mingi ba pneus.
Use characteristics: Insoluble sulfur is used as a vulcanizing agent for natural rubber and synthetic rubber, and can be directly added to the compound during kneading. Usually added in the final stage of mixing. If feeding on the internal mixer, it is best to reduce the temperature of the rubber to 90℃C before discharge. For IS-HS products, it can be added at no higher than 105℃. Generally, Motango ezali 0.2-5.0 biteni na kati ya produit ya caoutchouc ya pete, mpe motango ezali moke te koleka 3.5 biteni na kati ya composé oyo ekangami na caoutchouc. na bokeli ya ba pneus radiaux, ba sociétés ya ba pneus mingi mingi esengaka soufre insoluble mpo na kobatela taux ya 40% to koleka na 120 degrés ya thermostisme.
LISAKOLI: Ba agents ya compounding makasi ya alcalin to ba accélérateurs ya thiazole ekoki kozala na likama ya kofuluka soki esangani na soufre oyo ekoki kopɔla te. Produit oyo ekoki kozika mpe esengeli kobatelama na moto tango ebombami mpe esalelami.