Efficient plastic toughening agent

A plastic toughening agent and high-efficiency technology, applied in the field of high-efficiency plastic toughening agents, can solve the problems of high brittleness and easy cracking, and achieve the effect of increasing toughness, maintaining stability, and avoiding degradation and excessive cross-linking.

Inactive Publication Date: 2019-12-03
高超铺
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a high-efficiency plastic toughening agent in view of the brittleness of commonly used plastic toughening agents after use and the problem that cracks are easily generated when subjected to external forces

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0030] The preparation method of composite toughened base material, comprises the steps:

[0031] (1) At 20~35°C, take 2~5 parts of acrylic acid, 8~13 parts of maleic anhydride, 6~10 parts of itaconic acid, and 30~45 parts of NaOH solution with a mass fraction of 14% in parts by mass. Mix in a reaction kettle to obtain a monomer liquid. Take the monomer liquid and add high-density polyethylene and a release agent to mix at a mass ratio of 6~10:3:0.1. Stir with a magnetic force at 500~800r / min for 40~60min, and heat up to 60~80°C , pass chlorine gas at 30~50mL / min for 25~50min, cool naturally to room temperature to obtain the reaction material, take the reaction material and mix it with xylene at a mass ratio of 1:2~4, and stir it magnetically at 400~700r / min for 30~ After 55 minutes, add reagent A that is 7 to 10 times the mass of the reaction material, mix and stir, filter with suction, take the filter residue and dry it in an oven at 65 to 80°C for 3 to 5 hours to obtain a d...

Embodiment 1

[0036] Antioxidant: Mix avocado oil and tertiary butyl hydroquinone at a mass ratio of 4:1 to obtain an antioxidant.

[0037] Auxiliary agent: Mix microcrystalline paraffin wax, zinc stearate and hydroxyapatite in a mass ratio of 1:2:1 to obtain the auxiliary agent.

[0038] Release agent: Mix spermaceti and talcum powder at a mass ratio of 1:2 to obtain the release agent.

[0039] Reagent A: Mix acetone and absolute ethanol at a volume ratio of 1:3 to obtain Reagent A.

[0040] Reagent B: Mix ammonium chloride and PBS buffer solution with a pH of 7.2 at a mass ratio of 1:6 to obtain reagent B.

[0041] Additive: Mix polyacrylamide, carboxyethyl cellulose, and silane coupling agent KH-550 at a mass ratio of 1:5:0.01 to obtain the additive.

[0042] Pretreatment of metal materials: According to the mass ratio of 2:5:0.6, take alumina with a particle size of 0.2mm, boron carbide powder passed through a 100-mesh sieve, and nickel foam mixed in a graphite mold, press at 55°C wit...

Embodiment 2

[0049] Antioxidant: Mix avocado oil and tertiary butyl hydroquinone at a mass ratio of 8:1 to obtain an antioxidant.

[0050] Auxiliary: Mix microcrystalline paraffin, zinc stearate, and hydroxyapatite at a mass ratio of 1:5:1 to obtain the auxiliary.

[0051] Release agent: Mix spermaceti and talcum powder at a mass ratio of 1:5 to obtain the release agent.

[0052] Reagent A: Mix acetone and absolute ethanol at a volume ratio of 1:7 to obtain Reagent A.

[0053] Reagent B: Mix ammonium chloride and PBS buffer solution with a pH of 7.7 at a mass ratio of 1:10 to obtain Reagent B.

[0054] Additive: Mix polyacrylamide, carboxyethyl cellulose, and silane coupling agent KH-550 at a mass ratio of 1:8:0.01 to obtain the additive.

[0055] Pretreatment of metal materials: According to the mass ratio of 2:8:0.6, take alumina with a particle size of 0.5mm, boron carbide powder passed through a 100-mesh sieve, and nickel foam mixed in a graphite mold, press at 80°C with a pressure o...

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Abstract

The invention discloses an efficient plastic toughening agent, and belongs to the field of high polymer materials. According to the efficient plastic toughening agent, acrylic acid, maleic anhydride and the like are taken as monomers, different degrees of graft modification are conducted in a reaction kettle to form a monomer mixture with good compatibility, so that good toughness is achieved after application to plastic, and cracks are not prone to being generated; an added dopamine solution can undergo oxidative auto-polymerization reaction under alkalescence conditions, through the effectsof covalent bonds, non-covalent bonds, and hydrogen bonds, a role of adhesion between components is firmly played, internal stability is improved, the component of graphene oxide added in the subsequent process has a large specific surface area, the surface contains functional groups such as carboxyl groups, absorption on the surface of positively charged polyelectrolyte can be realized through electrostatic action, reinforcing action on a multilayer network structure is realized, the toughness can be improved to a large extent, so that the cracks are not prone to being generated. According tothe efficient plastic toughening agent, the problems that in the prior art the commonly used plastic toughening agent is great in brittleness after being used and prone to generating cracks when subjected to external forces are solved.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a high-efficiency plastic toughening agent. Background technique [0002] Many polymers are brittle at room temperature, which greatly reduces their use value. For example, polystyrene has good transparency and easy processing, but it needs to add rubber to increase toughness to have higher impact strength. The additives that give plastics better toughness are called tougheners, also known as impact modifiers. The main purpose of the current development of toughening agents is to improve the brittleness of rigid polyvinyl chloride. The continuous growth of rigid polyvinyl chloride usage in the world is closely related to the increasing development of toughening agents and processing modifiers. Tougheners are a class of additives that can reduce the brittleness of composite materials and improve the impact resistance of composite materials. It can be divided into two ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L51/06C08L67/04C08L23/16C08L91/06C08K13/06C08K5/098C08K3/04C08K9/00C08K9/04C08K3/22C08K7/24C08K5/13C08F255/02
CPCC08F255/02C08K2003/2227C08L51/06C08L2205/035C08L67/04C08L23/16C08L91/06C08K13/06C08K5/098C08K3/042C08K9/00C08K9/04C08K3/22C08K7/24C08K5/13
Inventor 高超铺
Owner 高超铺
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