Anti-aging nylon modified elastomer and preparation method thereof

Abstract

The invention discloses an anti-aging nylon modified elastomer and a preparation method thereof, and belongs to the field of nylon modified elastomers. The material is prepared from the following rawmaterials in parts by weight: 50-200 parts of hard segment nylon, 5-40 parts of chlorinated butyl rubber, 3-30 parts of pinus sylvestris lignocellulose, 3-10 parts of a functional additive, 35-80 parts of filling oil, 20-70 parts of a compatilizer, 5-10 parts of graphene, 1-3 parts of o-hydroxybenzophenone derivatives, 1-3 parts of ethylene and 1-3 parts of 2,6-butylated hydroxytoluene. The preparation method comprises the following steps: performing a polyaddition reaction on above-mentioned parts by weight of ethylene to to form polyethylene, fully and uniformly mixing polyethylene and an o-hydroxybenzophenone derivative to obtain a mixture A; and mixing the hard segment nylon, the chlorinated butyl rubber, the pinus sylvestris lignocellulose, the filling oil and the compatilizer in parts by weight to obtain a mixture B. The product has the advantages of reasonable components, favorable aging resistance and low cost, and is suitable for popularization and application.

Description

technical field [0001] The invention relates to the technical field of nylon modified elastomers, in particular to an aging-resistant nylon modified elastomer and a preparation method thereof. Background technique [0002] Nylon, as the largest engineering plastic, has a wide variety, has excellent mechanical properties, wear resistance, self-lubricating properties, chemical resistance, oil resistance and solvent resistance, and is widely used in transportation, electronics, machinery and other fields. However, nylon is easily brittle at low temperature or in a dry state, has poor impact performance, and does not have the high elasticity of elastomers. Therefore, it is necessary to toughen nylon to improve the impact resistance of nylon. [0003] Existing nylon elastomers are prepared by thermoplastic elastomers, rarely by hard-segment nylon, and hard-segment nylon has a large output and low cost, and the existing nylon elastomers have weak aging resistance. It is easy to a...

AI Technical Summary

Problems solved by technology

However, nylon is easy to become brittle at low temperature or in a dry state, has poor impact performance, and does not have the high elasticity of elastomers. Therefore, nylon needs to be toughened and modified to improve the impact resistance of nylon.

[0003] Existing nylon elastomers are prepared by thermoplastic elastomers, rarely by hard-segment nylon, and hard-segment nylon has a large output and low cost, and the existing nylon elastomers have weak aging resistance. It is easy to age under the environment, thus affecting the service life

[0004] The patent application number is CN201711417157.4, which proposes a thermoplastic elastomer material for coating glass fiber reinforced nylon and its preparation method. By adjusting the specific material selection and proportion of styrenic block copolymers, the mineral materials are Modification, adjusting the compatibility of each component, the obtained thermoplastic elastomer material, coated with glass fiber reinforced nylon, has strong adhesion, high melt index, good fluidity, and good processing performance. No soft glue residue, can be widely used in the coating of various tool handles of glass fiber reinforced nylon substrate; but its anti-aging performance is poor, only adding anti-aging agent can not achieve good anti-aging ability, for this reason, this The invention proposes an anti-aging nylon modified elastomer and its preparation method

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