Manufacturing process of polytetrafluoroethylene composite elastic body shim and product thereof
A polytetrafluoroethylene, production process technology, applied in other household appliances, household components, applications, etc., can solve the problems of insufficient overall use effect, poor elasticity and strength, poor sealing performance, etc., to reduce blowout resistance. , High sealing specific pressure, reducing the effect of gasket cold flow
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Embodiment 1
[0026] Embodiment 1: the step of the production technology of polytetrafluoroethylene composite elastomer gasket of the present invention is:
[0027] a. Preparation of mixed rubber. The composition and mass percentage of mixed rubber are: 70% of fluorine rubber, 1.7% of vulcanizing agent, 13.7% of acid absorbing agent, 13.7% of reinforcing agent, and the rest are operating aids;
[0028] b. Pre-press molding under the conditions of temperature 80-90℃ and pressure 15-30Mpa;
[0029] c. Process the PTFE gasket through machine tool cutting, and process the water line 3;
[0030] d, polytetrafluoroethylene and rubber bonding parts are surface-activated with naphthalene sodium treatment agent, naphthalene sodium treatment agent is: naphthalene and sodium are dissolved in a sufficient amount of tetrahydrofuran solution, and the molar ratio of naphthalene to sodium is 1:1;
[0031] e. Apply adhesive to bond the rubber gasket 1 to the PTFE shell 2;
[0032] f. Vulcanization molding...
Embodiment 2
[0037] Embodiment 2: the step of the production technology of polytetrafluoroethylene composite elastomer gasket of the present invention is:
[0038] a. Preparation of mixed rubber. The composition and mass percentage of mixed rubber are: 60% of fluorine rubber, 3% of vulcanizing agent, 15% of acid absorbing agent, 15% of reinforcing agent, and the rest are operating aids;
[0039] b. Pre-press molding under the conditions of temperature 80-90℃ and pressure 15-30Mpa;
[0040] c. Process the PTFE gasket through machine tool cutting, and process the water line 3;
[0041] d, polytetrafluoroethylene and rubber bonding parts are surface-activated with naphthalene sodium treatment agent, naphthalene sodium treatment agent is: naphthalene and sodium are dissolved in a sufficient amount of tetrahydrofuran solution, and the molar ratio of naphthalene to sodium is 1:1;
[0042] e. Apply adhesive to bond the rubber gasket 1 to the PTFE shell 2;
[0043] f. Vulcanization molding under...
Embodiment 3
[0048] Embodiment 3: the step of the production technology of polytetrafluoroethylene composite elastomer gasket of the present invention is:
[0049] a. Preparation of mixed rubber. The composition and mass percentage of mixed rubber are: 50% of fluorine rubber, 1.5% of vulcanizing agent, 10% of acid absorbing agent, 10% of reinforcing agent, and the rest are operating aids;
[0050] b. Pre-press molding under the conditions of temperature 80-90℃ and pressure 15-30Mpa;
[0051]c. Process the PTFE gasket through machine tool cutting, and process the water line 3;
[0052] d, polytetrafluoroethylene and rubber bonding parts are surface-activated with naphthalene sodium treatment agent, naphthalene sodium treatment agent is: naphthalene and sodium are dissolved in a sufficient amount of tetrahydrofuran solution, and the molar ratio of naphthalene to sodium is 1:1;
[0053] e. Apply adhesive to bond the rubber gasket 1 to the PTFE shell 2;
[0054] f. Vulcanization molding unde...
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