Temperature-resistant composite film iron precoating film adhesive and preparation method thereof
A technology of adhesive and laminated iron, applied in the direction of adhesive types, non-polymer adhesive additives, aldehyde/ketone condensation polymer adhesives, etc., can solve problems such as poor high temperature resistance and increase the Effects of crosslinking density, crosslinking improvement, and heat resistance improvement
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
preparation example Construction
[0033] The embodiment of the present invention provides a kind of preparation method of adhesive for temperature-resistant laminating iron pre-coating film, is used for above-mentioned adhesive, takes each raw material according to above-mentioned formula, comprises the following steps:
[0034] Prepare main agent and curing agent respectively; Wherein,
[0035] The preparation main agent is:
[0036] Add polyester resin, epoxy resin, amino resin, silane coupling agent and ethyl acetate into the polyester kettle to make an ethyl acetate solution containing polyester resin, epoxy resin, amino resin and silane coupling agent. Main agent, the rotational viscosity of the main agent at 25°C is 200-400mPa·s, and the solid content is 25-35%;
[0037] Prepare curing agent as:
[0038] Mix low-molecular-weight polyols and ethyl acetate at 40°C evenly, then add isocyanate, heat up to 70-80°C and react for 3-4 hours, and after cooling down to room temperature, the ethyl acetate solutio...
Embodiment 1
[0049] The embodiment of the present invention provides an adhesive for a temperature-resistant laminated iron pre-coating film, which is composed of a main agent and a curing agent. The preparation method of the adhesive is as follows:
[0050] Prepare the main agent: first prepare the polyester resin used for the main agent: add 22.5 parts by weight of terephthalic acid, 14.3 parts by weight of isophthalic acid, 13 parts by weight of phthalic anhydride, 8.1 parts by weight of adipic acid, 10 parts by weight of Parts of ethylene glycol, 10.4 parts by weight of dihexanediol, 21.6 parts by weight of neopentyl glycol, 0.02 parts by weight of tetra-n-butyl titanate and 0.04 parts of triphenyl phosphite, stir well and heat up to 210-230 °C, After 6 hours of reaction, 11.6 parts by weight of distilled water, the acid value measured after the esterification is 17.6 mg KOH / g; MPa, pre-pumping for 1 hour in sequence, and the temperature of the kettle is controlled at 240-250°C; after ...
Embodiment 2
[0055] Prepare the main agent: first prepare the polyester resin used in the main agent: add 16.3 parts by weight of terephthalic acid, 19.5 parts by weight of isophthalic acid, 14.1 parts by weight of phthalic anhydride, 10 parts by weight of adipic acid, 10.1 parts by weight of Parts by weight of ethylene glycol, 8.7 parts by weight of dihexanediol, 22.2 parts by weight of neopentyl glycol, 0.02 parts by weight of tetra-n-butyl titanate and 0.04 parts by weight of triphenyl phosphite, stir well and heat up to 210-230 °C , reacted for 6 hours, distilled 12.0 parts by weight of water, and the acid value measured after the esterification was 16.2mgKOH / g; MPa, sequentially pre-pumping for 1 hour, the temperature of the kettle is controlled at 240-250°C; after the pre-pumping is completed, a long-term vacuuming operation is carried out, the vacuum degree reaches -0.1MPa, the long-term pumping time is 6.5 hours, and the weight of distilled alcohol is 6.5 parts by weight; The hydro...
PUM
Property | Measurement | Unit |
---|---|---|
hydroxyl value | aaaaa | aaaaa |
softening point | aaaaa | aaaaa |
acid value | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
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