Quartz stone resin with high stability and preparation method thereof

A high-stability, quartz stone technology, applied in the field of unsaturated polyester resin, can solve the problem of flexural strength, flexural modulus of elasticity and thermal deformation temperature, which are greatly affected by temperature, heat resistance and corrosion resistance of unsaturated polyester resin. Not good, the electron cloud distribution of phthalic anhydride is asymmetric, etc., to achieve the effect of improved surface gloss, high corrosion resistance, and not easy to agglomerate

Active Publication Date: 2018-07-10
山东宏信化工股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The strength, flexural modulus, and heat distortion temperature of the unsaturated polyester resin produced by this traditional method are greatly affected by temperature, and there are limitations in the use of regions or seasons, and it is prone to excessive hardness, too small or broken boards rate and unqualified rate increased, causing certain troubles to customers
[0003] 1) Traditional quartz stone resins generally only contain phthalic anhydride and dehydrated malic anhydride. Due to the extremely asymmetric electron cloud distribution of phthalic anhydride, it does not perform well in terms of chemical stability, and it is heat-resistant in unsaturated polyester resins. Poor performance and corrosion resistance
[0004] 2) The traditional quartz stone resin generally contains a large amount of diethylene glycol, and the resin contains a large amount of ether bonds, which leads to its general heat resistance and corrosion resistance. Performance is greatly affected by temperature, there are regional or use limitations

Method used

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  • Quartz stone resin with high stability and preparation method thereof
  • Quartz stone resin with high stability and preparation method thereof
  • Quartz stone resin with high stability and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Described high stability quartz stone resin comprises following raw material:

[0037] Diethylene glycol 170g, ethylene glycol 70g, 1,4-butanediol 70g, MPO 140g, isophthalic acid 100g, phthalic anhydride 270g, dehydrated malic anhydride 220g, vinylbenzene 450g.

[0038] The specific preparation method is as follows:

[0039] (1) Under the protection of high-purity nitrogen, put 170g of diethylene glycol, 70g of glycol, 70g of 1,4-butanediol, 140g of MPO, 100g of isophthalic acid and 100PPM manganese acetate into the reaction kettle for reaction, and gradually raise the temperature to 210 Polycondensation reaction at ±5°C for 8 hours until the acid value drops to 35-40mgKOH / g.

[0040] (2) Then cool down to 160±5°C, put in 270g of phthalic anhydride, 220g of dehydrated malic anhydride and 30PPM1,4-dihydroxybenzene, gradually raise the temperature to 205±5°C for polycondensation reaction for 8 hours, until the acid value drops to 55-65mgKOH / g, decompression and vacuum ...

Embodiment 2

[0042] Described high stability quartz stone resin comprises following raw material:

[0043] Diethylene glycol 362g, glycol 142g, methyl glycol 50g, 1,4-butanediol 210g, MPO 180g, terephthalic acid 260g, phthalic anhydride 550g, dehydrated malic anhydride 450g, vinylbenzene 850g, methacrylic acid Methyl ester 150g.

[0044] The specific preparation method is as follows:

[0045] (1) Under the protection of high-purity nitrogen, put 362g of diethylene glycol, 142g of glycol, 50g of methyl ethylene glycol, 210g of 1,4-butanediol, 180g of MPO, 260g of terephthalic acid and 150PPM of antimony pentoxide into the reaction Carry out the reaction in the kettle, gradually increase the temperature to 210±5°C for polycondensation for 9 hours, until the acid value drops to 40-45mgKOH / g.

[0046] (2) Then cool down to 160±5°C, put in 550g of phthalic anhydride, 450g of dehydrated malic anhydride, 40PPM 2,5-dihydroxytoluene, 50PPM triphenyl phosphite, and gradually heat up to 205±5°C for...

Embodiment 3

[0048] Described high stability quartz stone resin comprises following raw material:

[0049] Diethylene glycol 720g, ethylene glycol 1100g, 1,4-butanediol 1040g, MPO 400g, isophthalic acid 1600g, phthalic anhydride 1420g, dehydrated malic anhydride 1800g, vinylbenzene 3680g, methyl methacrylate 320g.

[0050] The specific preparation method is as follows:

[0051] (1) Under the protection of high-purity nitrogen, put 720g of diethylene glycol, 1100g of glycol, 1040g of 1,4-butanediol, 400g of MPO, 1600g of isophthalic acid, 100PPM antimony trioxide, and 100PPM manganese acetate into the reaction kettle. For reaction, gradually increase the temperature to 210±5°C for polycondensation for 10 hours until the acid value drops to 50-55mgKOH / g.

[0052] (2) Then cool down to 160±5°C, put in 1420g of phthalic anhydride, 1800g of dehydrated malic anhydride, 40PPM pyrobic acid, and 50PPM triphenyl phosphite, and gradually heat up to 205±5°C for 8 hours of polycondensation until the aci...

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Abstract

The invention belongs to the technical field of unsaturated polyester resin, and specifically relates to quartz stone resin with high stability and a preparation method thereof. The quartz stone resinwith high stability provided by the invention is in a liquid state at a normal temperature and comprises the following raw materials: dihydric alcohol A, dihydric alcohol B, saturated dicarboxylic acid, maleic anhydride, a crosslinking agent and a polymerization inhibitor, wherein the dihydric alcohol A is two or three selected from the group consisting of glycol, methyl glycol or diethylene glycol; the dihydric alcohol B is a mixture of 1,4-butanediol and MPO; and the saturated dicarboxylic acid is p-phthalic acid or isophthalic acid and phthalic acid anhydride. The quartz stone resin with high stability provided by the invention has the advantages of high bending strength, bending elastic modulus and heat deflection temperature, small influence of a temperature on performances, and excellent corrosion resistance; and the preparation method provided by the invention is scientific, reasonable, simple and practicable.

Description

technical field [0001] The invention belongs to the technical field of unsaturated polyester resins, and in particular relates to a high-stability quartz stone resin and a preparation method thereof. Background technique [0002] Ordinary quartz stone resins are mostly linear polymer compounds with ester bonds and unsaturated double bonds formed by polycondensation of phthalic anhydride, dehydrated malic anhydride and methyl ethylene glycol, glycol, or diethylene glycol. The strength, flexural modulus, and heat distortion temperature of the unsaturated polyester resin produced by this traditional method are greatly affected by temperature, and there are limitations in the use of regions or seasons, and it is prone to excessive hardness, too small or broken boards The phenomenon of increasing rate and unqualified rate has caused certain troubles to customers. [0003] 1) Traditional quartz stone resins generally only contain phthalic anhydride and dehydrated malic anhydride....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G63/54C08G63/676C08G63/78C08G63/86C08G63/83
CPCC08G63/54C08G63/676C08G63/78C08G63/83C08G63/866
Inventor 高国庆杨凯姜毅
Owner 山东宏信化工股份有限公司
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