Ethylene propylene rubber and preparation method thereof

A technology of ethylene-propylene rubber and masterbatch, applied in the field of rubber, can solve the problems of poor blending performance of antioxidant and EPDM rubber, poor anti-aging performance, weak action force, etc., so as to improve the synergistic effect. , The effect of improving physical and mechanical properties and improving vulcanization efficiency

Active Publication Date: 2018-03-20
玉环市鑫庄电子股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The anti-aging agent in this EPDM rubber delays the aging of ternary rubber through its own anti-oxidation effect, but the blending performance of the anti-aging agent and EPDM rubber is poor, and the interaction with other components is not strong , after adding anti-aging agent in EPDM rubber, due to the small interaction force between the anti-aging agent and EPDM rubber, the anti-aging performance of EPDM rubber after the addition of anti-aging agent is not ideal. The performance is poor, and it is easy to have the problem of partial aging when the anti-aging agent is not consumed during the use of EPDM rubber, which needs to be improved

Method used

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  • Ethylene propylene rubber and preparation method thereof
  • Ethylene propylene rubber and preparation method thereof
  • Ethylene propylene rubber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1: a kind of ethylene propylene rubber, each component and mass percentage in the raw material are as shown in table 2, wherein anti-aging agent is 2,2,4-trimethyl-1,2-dihydroquinoline polymer (anti-aging agent RD). The preparation method of ethylene propylene rubber comprises the following steps, step 1, after weighing the EPDM rubber of formula quantity and adding in the banbury mixer for 4-5 minutes, weigh the nanometer calcium carbonate, carbon black, anti-aging agent of formula quantity , talcum powder for pressurized banburying, until the load of the banbury mixer reaches 180, continue to pressurize the rubber mixing for 2-5 minutes, then discharge the glue to the next piece of the open mill to obtain the masterbatch;

[0028] Step 2, mixing dicumyl peroxide, stearic acid, and nano-zinc oxide, stirring and mixing for 5-10 minutes, to obtain a standby mixture;

[0029] Step 3. After the masterbatch is placed for 12-15 hours, add the masterbatch and the ...

Embodiment 2

[0031] Example 2: An ethylene-propylene rubber, the difference from Example 1 is that the components and mass percentages in the raw materials are shown in Table 2.

[0032] Wherein, the aging test method of the sample is the same as that of Example 1 and the side-by-side test is started at the same time.

Embodiment 3

[0033] Example 3: An ethylene-propylene rubber, the difference from Example 1 is that the components and mass percentages in the raw materials are shown in Table 2.

[0034] Wherein, the aging test method of the sample is the same as that of Example 1 and the side-by-side test is started at the same time.

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Abstract

The invention discloses ethylene propylene rubber and a preparation method thereof, and belongs to the rubber field. The ethylene propylene rubber includes the following raw material components by mass: 35 to 48% of EPDM rubber, 30 to 60% of a reinforcing agent, 0.5-3% of dicumyl peroxide, 0.5-4% of zinc oxide, 0.5-4% of stearic acid, 1-20% of talcum powder and 0.5-5% of an anti-aging agent. The anti-aging agent includes one or more of 2,2,4-trimethyl-1,2-dihydroquinoline polymer and 2-mercaptobenzimidazole, and the ethylene-propylene rubber includes 1-3% by mass of vinyl guanamine. The ethylene propylene rubber has the following beneficial effects: through addition of the anti-aging agent in the EPDM rubber, the oxidation of the EPDM rubber can be inhibited, the stearic acid as a surfactant can improve the uniformity of the dispersion of the anti-aging agent in the EPDM rubber and improve the connection of the anti-aging agent and the EPDM rubber, and the ethylene propylene rubber hasa better anti-aging effect.

Description

technical field [0001] The invention relates to the field of rubber, in particular to an ethylene-propylene rubber and a preparation method thereof. Background technique [0002] Ethylene-propylene rubber is a synthetic rubber with ethylene and propylene as the main monomers. According to the composition of monomers in the molecular chain, it can be divided into binary ethylene-propylene rubber and ternary ethylene-propylene rubber. The two are collectively referred to as ethylene-propylene rubber. Used in automotive parts, waterproof materials for construction, wire and cable sheaths, heat-resistant hoses, adhesive tapes, automotive seals, lubricating oil additives and other products. [0003] The Chinese patent whose publication number is CN103642132B discloses a kind of EPDM rubber composition. The components of the EPDM rubber composition in parts by weight are: 60-8 parts of EPDM rubber, 0.5 parts of fatty acid -1.5 parts, 1-2 parts of magnesium oxide, 1-3 parts of pol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/16C08K13/02C08K3/26C08K3/04C08K5/14C08K3/22C08K5/09C08K3/34C08K5/378C08K5/3437
CPCC08K3/04C08K3/22C08K3/26C08K3/34C08K5/09C08K5/14C08K5/3437C08K5/378C08K13/02C08K2003/2296C08K2003/265C08K2201/011C08L2201/08C08L23/16
Inventor 金增龙金才德
Owner 玉环市鑫庄电子股份有限公司
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