Hard PVC plastic high-impact modifier and preparation method thereof

A technology of high impact resistance and modifier, applied in the field of polymer materials, can solve the problems of limited application range and limited effect, and achieve the effect of increasing Vicat softening temperature, improving impact strength and toughness

Active Publication Date: 2021-02-19
JIANGSU BAOYUAN GAOXIN ELECTRIC
View PDF3 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Hard PVC plastic high-impact modifier and preparation method thereof
  • Hard PVC plastic high-impact modifier and preparation method thereof
  • Hard PVC plastic high-impact modifier and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] formula:

[0026]

[0027] Preparation:

[0028] (1) Extrude on a twin-screw extruder with an aspect ratio of L / D=48. The twin-screw extruder has 12 sections and 3 feed ports. The first feed port is located at the first of the extruder. Sections, the second feed port is located in the fifth section of the extruder, and the third feed port is located in the seventh section of the extruder;

[0029] (2) EVA is added with 75kg / h feed speed to the first feed inlet that the twin-screw extruder with 110r / min operating speed is located.

[0030] (3) Add (4-allyl-2-methoxyphenoxy)acetic acid, ethoxylated bisphenol A dimethacrylate, 1-(Bianoxy)-2-methoxy-4 -(1-propenyl)benzene, DCP, after mixing evenly according to the formula ratio, under the pressure of 0.8 ~ 1.2MPa, add the second feed port located on the twin-screw extruder at a feed rate of 6.5kg / h, EVA molecule The grafting reaction on the chain then occurs, and the processing temperature of the extruder gradually in...

Embodiment 2

[0034] formula:

[0035]

[0036] Preparation:

[0037] (1) Extrude on a twin-screw extruder with an aspect ratio of L / D=48. The twin-screw extruder has 12 sections and 3 feed ports. The first feed port is located at the first of the extruder. Sections, the second feed port is located in the fifth section of the extruder, and the third feed port is located in the seventh section of the extruder;

[0038] (2) EVA is added with 75kg / h feed speed to the first feed inlet that the twin-screw extruder with 110r / min operating speed is located.

[0039] (3) Add (4-allyl-2-methoxyphenoxy)acetic acid, ethoxylated bisphenol A dimethacrylate, 1-(Bianoxy)-2-methoxy-4 -(1-propenyl)benzene, DCP, after mixing evenly according to the formula ratio, under the pressure of 0.8 ~ 1.2MPa, add the second feed port located on the twin-screw extruder at a feed rate of 6.5kg / h, EVA molecule The grafting reaction on the chain then occurs, and the processing temperature of the extruder gradually in...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

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...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L51/06C08L23/06C08K5/134C08F255/02
CPCC08L27/06C08F255/02C08L2205/03C08L51/06C08L23/06C08K5/1345
Inventor 解朝辉解洪俊孙伟明
Owner JIANGSU BAOYUAN GAOXIN ELECTRIC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap