Supercharge Your Innovation With Domain-Expert AI Agents!

Preparation method of special PPS toughening agent

A technology of toughening agent and initiator, which is applied in the field of preparation of special toughening agent for PPS to achieve the effects of reducing side reactions, optimizing the reaction temperature and increasing the amount of grafting

Pending Publication Date: 2021-03-26
ZHUHAI CHANGXIAN CHEM TECH
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, polyphenylene sulfide (PPS) has achieved partial localization, and the domestic production is increasing, but the toughening agent is still a foreign monopoly

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
  • Preparation method of special PPS toughening agent
  • Preparation method of special PPS toughening agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Preparation of special toughening agent for PPS:

[0037] First, 300 kg of xylene and 100 kg of POE (ethylene-1-octene copolymer) with a melting point of 52°C were added to the reactor, and stirred while heating. At the same time, 30 kg of GMA and 1.5 kg of initiators (DCP, BPO, TBPB According to the weight ratio 1:1:1) mix evenly, start dropping into the reactor at 100°C, drop it in 2 hours, raise the temperature to 120°C, keep it for 2 hours, then raise the temperature to 130°C, keep it for 2 hours, and continue to heat up to 140°C , keep warm for 2 hours; cool down to <40°C, add a mixed solvent of acetone and ethanol (mass ratio of acetone:ethanol is 1:1) to precipitate the product, wash 3 times; dry at 40-60°C for 24 hours to obtain the product.

Embodiment 2

[0039] Preparation of special toughening agent for PPS:

[0040] First, 280 kg of xylene and 80 kg of POE (ethylene-1-butene copolymer) with a melting point of 85°C were added to the reactor, and stirred while heating. At the same time, 25 kg of GMA and 1.0 kg of initiator (DCP, BPO, TBPB were (weight ratio 1:2:2 mixed) mixed evenly, 95 ℃ began to drop into the reactor, 2 hours after the drop, the temperature was raised to 115 ℃, kept for 2 hours, then heated to 126 ℃, kept for 2 hours, continued to heat up to 136 ℃, Insulate for 2 hours; cool down to <40°C, add a mixed solvent of acetone and ethanol (mass ratio of acetone:ethanol is 2:1) to precipitate the product, wash 3 times; dry at 40-60°C for 24 hours to obtain the product.

Embodiment 3

[0042] Preparation of special toughening agent for PPS:

[0043] First, 320 kg of xylene and 120 kg of POE (ethylene-1-hexene copolymer) with a melting point of 100°C were added to the reactor, and stirred while heating. At the same time, 35 kg of GMA and 3.0 kg of initiators (DCP, BPO, TBPB were (weight ratio 1:3:3 mixed) mix evenly, start dropping into the reactor at 105°C, drop it in 2 hours, raise the temperature to 125°C, keep it for 2 hours, then raise the temperature to 135°C, keep it for 2 hours, continue to heat up to 145°C, Insulate for 2 hours; cool down to <40°C, add a mixed solvent of acetone and ethanol (mass ratio of acetone:ethanol is 3:1) to precipitate the product, wash 3 times; dry at 40-60°C for 24 hours to obtain the product.

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 preparation method of a special PPS toughening agent. The toughening agent comprises the steps of adding xylene and a polyolefin elastomer into a reaction kettle, proportionally and uniformly mixing glycidyl methacrylate and an initiator, starting to dropwise add into the reaction kettle at 100 DEG C, and dropwisely adding at constant speed for 2 hours; raising the temperature to 115 to 125 DEG C, keeping the temperature for 2 hours, then raising the temperature to 126 to 135 DEG C, keeping the temperature for 2 hours, continuously raising the temperature to 136 to 145 DEG C, and keeping the temperature for 2 hours; cooling to be less than 40 DEG C, adding a mixed solvent of acetone and ethanol to separate out a product, and cleaning for three times; and drying at40 to 60 DEG C for 24 hours to obtain the product. According to the preparation method of the special PPS toughening agent, the initiator is selected from DCP / BPO / TBPB in a compounded mode, POE-g-GMAis prepared through a segmented heating reaction, the reaction grafting rate is increased, and the prepared POE-g-GMA is used as the toughening agent special for PPS and is excellent in toughening effect.

Description

technical field [0001] The invention belongs to the technical field of polyphenylene sulfide toughening, and mainly relates to a preparation method of a special toughening agent for PPS. Background technique [0002] In recent years, with the development of my country's science and technology and manufacturing industry, there is an increasing demand for new materials, but the domestic new materials field started late, and there are still many dependence on imports, which have many constraints. Polyphenylene sulfide (PPS) has good mechanical properties, acid resistance, alkali resistance, heat resistance, flame retardancy, etc., has a variety of performance advantages, and has a wide range of applications, such as various functionalities such as high temperature resistance and corrosion resistance in the electrical industry and automobile industry. Parts, specifically microwave ovens, light-wave ovens, swivels, ovens, fire oven brackets, air conditioner heat, cold pipes, stea...

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
IPC IPC(8): C08F255/02C08F220/32C08F220/14C08F4/38C08L81/02C08L51/06
CPCC08F255/02C08F4/38C08L81/02C08F220/325C08F220/14C08L51/06
Inventor 王海艳韩兆维
Owner ZHUHAI CHANGXIAN CHEM TECH
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com