High-toughness polyester resin and synthetic method thereof

A technology of polyester resin and synthesis method, which is applied in the field of high-toughness polyester resin and its synthesis, can solve the problems of increased resin and filler ratio, increased cost, and more resins, etc., and achieves good wettability, high chemical resistance, The effect of high elongation at break

Active Publication Date: 2020-10-09
山东凯威尔新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After the resin and quartz are mixed evenly, during the curing process of the resin, the quartz of various particle sizes must be kept in suspension to avoid deposition and stratification. If the viscosity value of the selected unsaturated polyester resin is low, the quartz stone particles are easy to sink to form components layer state; if the viscosity value of the selected unsaturated polyester resin is too high, the ratio of resin to filler consumed in the production of quartz stone plates will increase, which will consume more resin and increase the cost

Method used

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  • High-toughness polyester resin and synthetic method thereof
  • High-toughness polyester resin and synthetic method thereof
  • High-toughness polyester resin and synthetic method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] The high toughness polyester resin described in the present embodiment 1, by mass percentage, raw material composition is as follows:

[0069]

[0070] The laboratory synthesis 5kg high-toughness polyester resin described in present embodiment 1 is made up of the following steps:

[0071] (1) Feed intake in reaction bottle, drop into ethylene glycol 506g, propylene glycol 135g, diethylene glycol 843g, triphenyl phosphite 2.5g, phthalic anhydride 1518g, maleic anhydride 607g, hexanoic anhydride respectively Diacid 34g, blow nitrogen, heat up to a temperature of 60°C, maleic anhydride is basically dissolved in alcohol, start stirring and continue to heat up.

[0072] (2) When the temperature is raised to 156°C, the output water of the alkyd condensation reaction increases rapidly, and the temperature of the distillation head begins to rise to 97±2°C, and the water is kept at this outlet temperature for 1.5 hours.

[0073] (3) Raise the temperature evenly at 4.5°C / 10mi...

Embodiment 2

[0094] The high toughness polyester resin described in the present embodiment 2, by mass percentage, the raw material composition is as follows:

[0095]

[0096] The production 30 tons of high-toughness polyester resins described in present embodiment 2 is made up of the following steps:

[0097] (1) Feeding: firstly throw ethylene glycol 3036kg, propylene glycol 810kg, diethylene glycol 5060kg, then throw triphenyl phosphite 12kg, then throw phthalic anhydride 9110kg, maleic anhydride 3644kg, adipic anhydride Acid 202kg.

[0098] (2) Nitrogen blowing: first pass nitrogen gas to the reaction kettle for 15 minutes, then reduce the nitrogen gas to enter the heating state.

[0099] (3) Heating: When the temperature of the distillation head is 90°C, pass the cooling water to the vertical condenser, and heat up to the outlet water at a constant speed for 1.0h. Raise the temperature at 15±1°C / h (control the heating rate according to the condition of the distillation head), and...

Embodiment 3

[0114]The high toughness polyester resin described in the present embodiment 3, by mass percentage, raw material composition is as follows:

[0115]

[0116] The production 30 tons of high-toughness polyester resins described in present embodiment 3 is made up of the following steps:

[0117] (1) Feeding: first throw ethylene glycol 3600kg, propylene glycol 850kg, diethylene glycol 5400kg, triethylene glycol 530kg, tetraethylene glycol 1053kg, neopentyl glycol 220kg, then throw triphenyl phosphite 3kg, and then throw 6624kg of phthalic anhydride, 3283kg of maleic anhydride, 600kg of adipic acid, 1165kg of fumaric acid, and 540kg of isophthalic acid.

[0118] (2) Nitrogen blowing: first pass nitrogen gas to the reaction kettle for 15 minutes, then reduce the nitrogen gas to enter the heating state.

[0119] (3) Heating: When the temperature of the distillation head is 90°C, pass the cooling water to the vertical condenser, and heat up to the outlet water at a constant speed...

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Abstract

The invention belongs to the technical field of polymer polyester materials, and particularly relates to high-toughness polyester resin and a synthesis method thereof. The polyester resin is preparedfrom the following raw materials in percentage by mass: 20 to 40 percent of dihydric alcohol, 30 to 50 percent of binary acid and/or anhydride, 20 to 40 percent of diluted solvent and 0.01 to 0.1 percent of an auxiliary agent. The high-toughness polyester resin has the advantages of lower viscosity, higher reaction activity, strong adhesive property, high thermal deformation temperature, high elongation at break and high strength of a resin casting body. The polyester resin is used for manufacturing artificial marble crushed aggregate bonding, artificial quartz stone plates and the like, and has the advantages of favorable wettability with fillers, favorable toughness and excellent mechanical strength.

Description

technical field [0001] The invention belongs to the technical field of polymer polyester materials, and in particular relates to a high-toughness polyester resin and a synthesis method thereof. Background technique [0002] With the improvement of people's living standards and the development of aesthetic views, simple granite is gradually replaced by marble and artificial stone of various colors, but natural granite and marble contain radioactive elements. The micropores make it less resistant to contamination. Nowadays, people prefer artificial stone in decoration. Artificial stone is made of unsaturated polyester resin as binder, mixed with various natural stone powder, silica sand, glass powder and other inorganic powders, as well as appropriate additives and colorants. They have the incomparable advantages of natural stone in terms of moisture resistance, acid resistance and splicability. [0003] Polyester resin is one of the basic raw materials of artificial quartz...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G63/676C08G63/78C08F283/01C08F212/08
CPCC08F283/01C08G63/676C08G63/78C08F212/08C08F212/06
Inventor 邓金标闫晗谷成玉臧伟莉石卫民张培文苏旭
Owner 山东凯威尔新材料有限公司
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