Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Acid-resistant epoxy resin embedding agent and preparation method thereof

A technology of epoxy resin and potting agent, which is applied in chemical instruments and methods, other chemical processes, electrical components, etc., and can solve problems such as difficult to adapt to room temperature or medium and low temperature curing process conditions

Inactive Publication Date: 2008-01-09
HEILONGJIANG INST OF PETROCHEM
View PDF0 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The reason is that although the system itself has good acid resistance, it has not attracted people's attention so far. Most of the anhydride-epoxy resin systems used as potting materials need to be cured after long-term heating and high temperature, which makes it difficult for this system to adapt to current applications. Room temperature or medium and low temperature curing process conditions for the manufacture of lead-acid battery covers

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment 1 Preparation and application of potting agent

[0024] In a 500ml glass beaker, 100g E-51 epoxy resin (produced by Bluestar Chemical New Material Co., Ltd. Wuxi Resin Factory; model WSR618(E-51)), 80g methylnadic anhydride, 1g DMP- 30. 2g of chromium (III) 2-ethylhexanoate; stir immediately and evenly, and after vacuum eliminates air bubbles, pour it into the lead pole on the cover of the lead-acid battery. The prepared perfusion glue was completely cured after heating at 80°C for 3 hours. The shear strength at room temperature ≥ 5MPa for ABS specimens bonded with this glue; the weight gain rate of acid absorption ≤ 0.7% after soaking in 40% sulfuric acid aqueous solution at 80°C for 7 days after the test piece made of this glue is soaked.

Embodiment 2

[0025] Embodiment 2 Preparation and application of potting agent

[0026] In a 500ml glass beaker, 100g E-44 epoxy resin (produced by Wuxi Resin Factory of Blue Star Chemical New Materials Co., Ltd.; model WSR6010 (E-44)), 60g methylhexahydrophthalic anhydride, were weighed in order , 1g benzyldimethylamine, 4.0g chromium (III) 2-ethylhexanoate; immediately fully stir evenly, after vacuum eliminates bubbles, pour into the lead pole place on the lead-acid battery cover. The prepared perfusion glue was completely cured after heating at 80°C for 3 hours. The shear strength at room temperature ≥ 5MPa for ABS specimens bonded with this glue; the weight gain rate of acid absorption ≤ 0.7% after soaking in 40% sulfuric acid aqueous solution at 80°C for 7 days after the test piece made of this glue is soaked.

Embodiment 3

[0027] Embodiment 3 preparation and application of potting agent

[0028] In a 500ml glass beaker, 100g E-39D epoxy resin (produced by Wuxi Resin Factory of Blue Star Chemical New Materials Co., Ltd.; model E-39D), 15g dioctyl phthalate, 60g methylhexa Hydrogen phthalic anhydride, 1g benzyldimethylamine, 1.0g chromium (III) 2-ethylhexanoate; stir well immediately, vacuum eliminate air bubbles, pour into the lead-made pole on the cover of the lead-acid battery place. The prepared perfusion glue was completely cured after heating at 80°C for 3 hours. The shear strength at room temperature ≥ 5MPa for ABS specimens bonded with this glue; the weight gain rate of acid absorption ≤ 0.7% after soaking in 40% sulfuric acid aqueous solution at 80°C for 7 days after the test piece made of this glue is soaked.

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

PropertyMeasurementUnit
shear strengthaaaaaaaaaa
Login to View More

Abstract

An acid-resisting epoxy-resin pouring agent and its production are disclosed. The pouring agent consists of epoxy-resin 100 proportion, anhydride 60-100 proportion, trivalent chrome complex 0.5-5.0 proportion and tertiary amine 0.3-3.0 proportion. The process is carried out by surface drying at room temperature for 4-6 hrs and curing less than 25 deg. C for 7 days or less than 80 deg. C for 2-3 hrs. The shearing strength for ABS plastic and lead is greater than or equal to 5 MPa, the acid absorptive rate is less than or equal to 0.7% at 80 deg. C in 40% sulfuric acid battery liquor. It has no acid creep and leakage. It can be used for pouring materials or acid-resisting coatings under high-temperature or high-acidity condition.

Description

technical field [0001] The invention relates to a potting material, in particular to an acid-resistant epoxy resin potting agent for sealing between a lead-acid battery pole and a case cover and a preparation method thereof, belonging to the field of chemical materials. Background technique [0002] In recent years, the potting compound used for sealing between the pole and the shell of the lead-acid battery is mainly a two-component room temperature curing acrylate potting material or an amine curing agent plus epoxy resin potting material. The above two types of potting materials all have different degrees of shortcomings or deficiencies. Although acrylate-type potting materials can be cured at room temperature and have good acid resistance, they will cause violent polymerization when a large amount is prepared at one time, so they need to be poured in batches, and the use process is complicated. Although amine curing epoxy resin potting materials can be cured at room tem...

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): C09K3/10H01M2/00H01M50/188H01M50/193H01M50/198
CPCY02E60/12Y02E60/10
Inventor 张恩天陈维君石娜李刚宋军军
Owner HEILONGJIANG INST OF PETROCHEM
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com