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Polyphenylene sulfide coil coating

A polyphenylene sulfide and coil coating technology, applied in polyether coatings, coatings and other directions, can solve the problems affecting the application of coil coatings, high rigidity and brittleness of molecular chains, etc., to ensure gloss stability and compatibility. Good performance and overcoming brittleness

Active Publication Date: 2015-01-28
CNOOC CHANGZHOU PAINT & COATINGS IND RES INST +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the biggest disadvantage of PPS resin is that due to the large number of benzene rings in its main chain, the molecular chain is too rigid, brittle, and low toughness, which affects its application in coil coatings.

Method used

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  • Polyphenylene sulfide coil coating
  • Polyphenylene sulfide coil coating
  • Polyphenylene sulfide coil coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment 1 prepares polyphenylene sulfide coil coating 1

[0021] 1. See Table 1 for the formula.

[0022] Table 1

[0023]

[0024] 2. Preparation method

[0025] ① Prepare raw materials according to the dosage of each component listed in Table 1;

[0026] ② Take 18 parts from the mixed solvent prepared in step ① and add 12 parts of thermoplastic acrylic resin into the reaction bottle, start stirring, heat up to 140°C to dissolve the resin, keep it warm for 3 hours and cool down to get 30 parts of thermoplastic acrylic resin solution, save it for later use;

[0027] ③In the 30 parts of thermoplastic acrylic resin solution obtained in step ②, add the dispersant Lubrizol 32500 and a mixed solvent with a formula volume of 50% and stir evenly, then add the combined resin polytetrafluoroethylene, polyphenylene sulfide resin and heat-resistant Pigments, mixed evenly, and ground to a fineness of ≤20 μm with a sand mill to prepare a color paste;

[0028] ④In the colo...

Embodiment 2

[0029] Embodiment 2 prepares polyphenylene sulfide coil coating 2

[0030] 1. See Table 2 for the formula.

[0031] Table 2

[0032]

[0033]

[0034] 2. Preparation method

[0035] 1. Prepare raw materials according to the consumption of each component described in Table 2;

[0036] ② Take 18 parts from the mixed solvent prepared in step ① and add 12 parts of thermoplastic acrylic resin into the reaction bottle, start stirring, heat up to 140 ℃ to dissolve the resin, keep it warm for 3 hours and then cool down to get 30 parts of thermoplastic acrylic resin solution, save it for later use;

[0037] ③ Soak 13 parts of aluminum silver paste CR-21GM in 13 parts of butyl acetate for 4 hours, and save for later use;

[0038] ④Take 25 parts of combined resin thermoplastic acrylic resin solution obtained in step ②, add dispersant Lubrizol 32500 to it and stir evenly, then add combined resin polyvinylidene fluoride and polyphenylene sulfide resin, mix evenly, and disperse at...

Embodiment 3

[0040] Example 3 Preparation of polyphenylene sulfide coil coating 3

[0041]1. The formula is shown in Table 3.

[0042] table 3

[0043]

[0044] 2. Preparation method

[0045] 1. Prepare raw materials according to the consumption of each component described in Table 3;

[0046] ② Take 18 parts from the mixed solvent prepared in step ① and add 12 parts of thermoplastic acrylic resin into the reaction bottle, start stirring, heat up to 140°C to dissolve the resin, keep it warm for 3 hours and cool down to get 30 parts of thermoplastic acrylic resin solution, save it for later use;

[0047] ③Add the dispersant Lubrizol 32500 and 50% of the mixed solvent of the formula to the 30 parts of blended resin thermoplastic acrylic resin solution obtained in step ② and stir evenly, then add the blended resin polyphenylene sulfide resin and heat-resistant pigments, mix Evenly, use a sand mill to grind to a fineness of ≤20μm to make a color paste;

[0048] ④In the color paste prep...

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Abstract

The invention relates to a polyphenylene sulfide coil coating which comprises the following components in parts by weight: 9-30 parts of polyphenylene sulfide resin, 9-30 parts of combined resin, 2-6 parts of a curing agent, 10-19 parts of thermal resistant pigment, 45-57 parts of a mixed solvent and 0.5-1.5 parts of an additive, wherein the sum of the components is 100 parts by weight; the polyphenylene sulfide resin is of a coating grade or polyphenylene sulfide oligomer; the combined resin is one or more of polyphenyl ether, polyether-ether-ketone, polytetrafluoroethylene, thermoplastic acrylic resin and polyvinylidene fluorine; the curing agent is full-methyl etherification amino resin, a sealed hexamethylene diisocyanate tripolymer, thermosetting acrylic resin and full-methyl etherification amino resin, or a mixture of the thermosetting acrylic resin and the sealed hexamethylene diisocyanate tripolymer, wherein the mass ratio of the thermosetting acrylic resin and the sealed hexamethylene diisocyanate tripolymer is (1-2):1. The properties such as the acid and alkali resistance and the water boiling resistance of the coil coating are far better than those of resistant medium requirements on ordinary coil coating products of the national standard.

Description

technical field [0001] The invention relates to a polyphenylene sulfide coil coating, which is especially suitable for roller coating of metal coils, such as steel coils or aluminum coils. Background technique [0002] The common types of coils are steel coils and aluminum coils, and the coatings applied to the surface of the coils are called coil coatings. Coil coatings are divided into primers, topcoats, and backcoats according to different coating locations. The coil primer is coated on the bottom of the front coating of the metal sheet, and the main varieties are epoxy and polyurethane; the back paint is coated on the back of the metal sheet, and the main varieties are epoxy and polyester; the top coat is polyester Topcoats, polyurethane topcoats, polyethylene-based topcoats, fluorocarbon topcoats, silicon-modified polyester topcoats, etc. However, in highly corrosive environments, such as pickling workshops, electroplating workshops, paper workshops, leather workshops...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D181/02C09D127/18C09D133/12C09D7/12C09D127/16C09D171/12C09D171/10
CPCC08L2201/08C08L2205/02C08L2205/025C08L2205/035C09D7/65C09D181/02C08L27/18C08L33/00C08L61/32C08K2003/2241C08L27/16C08L61/20C08K2003/0812C08K2003/0806C08L71/12C08L71/10
Inventor 甘崇宁蒋旭王须苟常霞俊蒋英侠
Owner CNOOC CHANGZHOU PAINT & COATINGS IND RES INST
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