mbt calzature And metal bonded and the physical an -

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And metal bonded and the physical and mechanical properties of plastic and injection pressure properties

. Containing 30 parts by weight of the plastic filler material under the heat in the 180 ~ C l5 ~ 45 seconds, the effective viscosity and sulfur content of the relationship is actually linear. In the case of heating time continues to increase, due to a sharp increase cure rate, effective viscosity will gradually increase. Conditions in the industrial production system with sulfur out of the Cz + accelerator rubber curing system. Conditions in the laboratory of the vulcanized rubber for a rapid test (see Table 3). Industrial production of the metal. Rubber semi-finished products in 433oI (× 7min under the conditions of curing, and testing of semi-finished products of the curing time is 2min. And industrial rubber. Metal bonding strength (7 ~ 8kN) compared to test the adhesive strength of rubber and metal more low (2 ~ 3kN). This is because the promoter of the reason. rubber and copper metal bonding in the case of accelerator should be able to ensure that the entire compound for the first five Zhao is slow. and metal bonded and use Mechanical properties of plastic injection pressure performance with 15 slow even cure. with the best content of sulfur and rubber accelerator for brass,[link widoczny dla zalogowanych], with its strong adhesion, but not sulfur yellow,[link widoczny dla zalogowanych], but it contains a lot of rubber accelerator material and low adhesion of brass (or simply do not bond with the brass). the best and make the sulfur and the brass and rubber to react at different speeds. sulfur and copper sulfide can cause a rapid response the formation of copper,[link widoczny dla zalogowanych], brass and rubber that would hinder adhesion. through the use of MBT and diphenyl guanidine accelerator can successfully adjust the speed of these two reactions. Table 4 curing time on the valve with EPDM-PVC rubber properties Note: 1) the physical and mechanical properties for producing a batch of rubber curing time required for 15rain. Table 5 curing time on the pan of a 2045T-PVC valve rubber properties Note: 1) the physical and mechanical properties for producing a batch of rubber curing time required for 15rain. For industrial mass production of rubber, the proposed use of 0.3 parts by weight of the MBT to replace the accelerator and 2.5 parts by weight sulfur Cz. Such rubber vulcanization speed is low,[link widoczny dla zalogowanych], but it has high mechanical properties. Compound were prepared in accordance with the above-mentioned plastic compound 0.47 in 433oI (X0.510mln curing conditions. Also prepared a 2045T with I Ⅲ replace EPDM.60 of plastic material, plastic materials containing (by weight): CKH-385.0; PVC10.0; EPDM a 60 or I Ⅲ a 2045T5.0; sulfur, 2.5; zinc oxide 5.0; MBT0.3; product4010NA1.O; Antonio Brown D1.0 ; rosin 0.5; stearic acid 0.5; a modifier Py 12.0; mineral rubber or softener A (4.O; industrial carbon black H23430.0. composites containing EPDM-PVC and IIR-2045T The valve-PVC vulcanizate as shown in Table 4 and Table 5. the data can be seen from the table, containing 0.3 parts by weight of accelerator M and 2.5 parts by weight of sulfur in a PVC.EPDM a Cl-3 60 and Cl-3 for a 2045T for a PVC-IIR plastic material,[link widoczny dla zalogowanych], able to cure quickly enough, and 14min in the case of curing with high mechanical properties. in the adhesion of rubber to brass, in the 160 ~ C at different time under the curing of semi-finished products, the results obtained as shown in Table 6. Table 6 curing time on the adhesion of rubber and valves and automotive inner tubes and valves of adhesion properties of rubber vulcanization'' Time / min2) Note: 1) production of rubber, the rubber and adhesive strength of valve 8-10kN; car valve inner tube rubber and rubber adhesive strength of 1.5-2kN. 2) The conditions in the production of semi-finished rubber valve manufacturing time is 67min. 3) the molecular properties on behalf of EPDbI-PVC rubber; denominator that fIR a 2045T-PVC rubber performance. Type of injection presses with LtCI4371/160E tests showed that the developed to the injection molding of rubber. Compound in the 423oI <temperature, residence time in the curing zone is 1.52min. In summary, the successful development of the CKH-3 for a PVC-EPDM and CIqI4-3 for a 2045T for a PVC-IIR polymer blends as the base material of the valve rubber. Rubber compound with small amounts of zinc oxide and free silica. Such rubber can improve the adhesion with copper metal and can carry out injection molding. Compiled from KayqyKI / Ipea ~ Ha, 2003; (5): 1417
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