Hard PVC plastic high-impact modifier and preparation method thereof

Abstract

The invention discloses a hard PVC plastic high-impact modifier which is prepared from the following components in parts by weight: 100 parts of EVA, 5-10 parts of (4-allyl-2-methoxyphenoxy)acetic acid, 2-5 parts of ethoxylated bisphenol A dimethacrylate, 2-5 parts of 1-(benzyloxy)-2-methoxy-4-(1-propenyl)benzene, 0.3-0.8 part of DCP, 0.2-0.3 part of an antioxidant, and 0.5 to 1.0 part of PE wax.By adopting the modifier disclosed by the invention, the impact strength and toughness of the hard PVC material are greatly improved, and other properties such as rigidity and the like of hard PVC areimproved to a certain extent, so that the modifier is an efficient and high-impact-resistance modifier for hard PVC plastics.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a rigid PVC plastic high-impact modifier and a preparation method thereof. Background technique [0002] Polyvinyl chloride (PVC) plastic is based on PVC resin, mixed with various additives such as stabilizers, plasticizers, fillers, etc., and plasticized to process thermoplastic polymers with good physical and mechanical properties. PVC plastic can be made into soft and hard products by adding the number of plasticizers. Therefore, PVC plastic can be divided into hard and soft. Hard PVC plastic is a brittle polymer material. Unmodified hard High-quality PVC plastic is sensitive to gaps and is easily brittle under impact, so it cannot be used as a structural material. Usually blending method is used to add toughening agent modifiers, such as PE, etc. to rigid PVC to improve the impact strength or willfulness of rigid PVC. However, after adding these modifi...

AI Technical Summary

Problems solved by technology

However, after adding these modifiers, although the impact strength or toughness of rigid PVC materials has been improved, the effect is limited, which limits its scope of use.

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