Polyester material with high toughness and preparation method thereof

A polyester material and toughness technology, applied in the field of polyester material with strong toughness and its preparation, can solve the problem of low toughness of polyester, and achieve the effects of excellent strength, improved strength and improved uniformity

Active Publication Date: 2022-07-08
河南源宏高分子新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a polyester material with strong toughness and a preparation method thereof to solve the problem of low toughness of polyester at present

Method used

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  • Polyester material with high toughness and preparation method thereof
  • Polyester material with high toughness and preparation method thereof
  • Polyester material with high toughness and preparation method thereof

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preparation example Construction

[0020] A preparation method of a polyester material with strong toughness, the method at least comprises the following steps:

[0021] (1) Preparation of prepolymer: get L-tartaric acid, dihydromuconic acid, 1,7 heptanediol and dinonylnaphthalene sulfonic acid of the above-mentioned parts by weight, add them successively in the reactor containing carbon tetrachloride , introduce nitrogen, heat up to 166-170°C and stir for 30min, vacuumize and cool down to 120°C for 1-2h reaction, add the above-mentioned cyclohexyl isocyanate to the reaction kettle, and purify to obtain a prepolymer;

[0022] (2) Preparation of microcapsules: Microcapsules are prepared by spray cooling method;

[0023] (3) Blending: add the prepolymer and microcapsules into a stirring vessel for mixing, perform ultrasonic treatment on the vessel while stirring, mix for 20-30 min, and add the above-mentioned azobisisobutylene to the vessel. Nitrile, aromatic alcohol, auxiliary agent, and heat up to 100 °C, reac...

Embodiment 1

[0026] A tough polyester material, the material is composed of the following components in parts by weight: 10 parts of benzyl alcohol, 5 parts of cyclohexyl isocyanate, 5 parts of L-tartaric acid, 20 parts of dihydromuconic acid, 1,7 heptanedi 27 parts of alcohol, 1 part of dinonylnaphthalene sulfonic acid, 5 parts of microcapsules, 2 parts of azobisisobutyronitrile, 1 part of monoalkoxy fatty acid titanate, and 3 parts of silane coupling agent KH792; The wall material is polyethylene with a molecular weight of less than 10,000, the core material is a mixture of sodium alginate and nano-titanium dioxide, the diameter is about 30nm, the mass ratio of the two is 1:3, and the weight of the core material is 80% of the total weight of the microcapsules.

[0027] The preparation method of the tough polyester material comprises the following steps:

[0028] (1) Preparation of prepolymer: get L-tartaric acid, dihydromuconic acid, 1,7 heptanediol and dinonylnaphthalene sulfonic acid o...

Embodiment 2

[0033] A tough polyester material, the material is composed of the following components by weight: 20 parts of aryl alcohol, 6 parts of cyclohexyl isocyanate, 4 parts of L-tartaric acid, 16 parts of dihydromuconic acid, 1,7 parts of heptyl 22 parts of diols, 2 parts of dinonylnaphthalene sulfonic acid, 4 parts of microcapsules, 1 part of azobisisobutyronitrile, 0.5 parts of monoalkoxy fatty acid titanate, 1.5 parts of silane coupling agent KH570; microcapsules The wall material is polyethylene with a molecular weight of less than 10000, the core material is a mixture of sodium alginate and nano-titanium dioxide (30nm), the mass ratio of the two is 1:3, and the weight of the microcapsule core material is 80% of the total weight of the microcapsule;

[0034] The preparation method of the tough polyester material at least comprises the following steps:

[0035] (1) Preparation of prepolymer: get L-tartaric acid, dihydromuconic acid, 1,7 heptanediol and dinonylnaphthalene sulfonic...

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Abstract

The invention relates to a high-toughness polyester material and a preparation method thereof, and the polyester material comprises the following components in parts by weight: 10-25 parts of aromatic alcohol, 5-8 parts of cyclohexyl isocyanate, 20-40 parts of polybasic organic acid, 22-45 parts of 1, 7-heptanediol, 1-3 parts of dinonyl naphthalene sulfonic acid, 4-10 parts of microcapsules, 1-4 parts of an initiator and 2-4 parts of an auxiliary agent. The multi-element organic acid is selected from one or a mixture of two of L-tartaric acid and dihydromuconic acid, the multi-element organic acid is the mixture of the L-tartaric acid and the dihydromuconic acid, the ratio of the amount of substance of the L-tartaric acid to the dihydromuconic acid is 1: 4, the wall material of the microcapsule is polyethylene with the molecular weight smaller than 10000, the core material of the microcapsule is a mixture of sodium alginate and nano titanium dioxide, and the core material of the microcapsule is a mixture of sodium alginate and nano titanium dioxide. The mass ratio of the sodium alginate to the nano titanium dioxide is 1: 3. The toughness of the prepared polyester material is improved while the strength of the polyester material is guaranteed, and the application range of the polyester material is widened.

Description

technical field [0001] The invention relates to the technical field of polyester materials, in particular to a polyester material with strong toughness and a preparation method thereof. Background technique [0002] Polyester is an assembly of polymers obtained by polycondensation of polyols and polyacids. Due to the simple production process of polyester materials, easy availability of raw materials, excellent mechanical strength and certain chemical resistance, polyester has become a An engineering plastic with excellent performance and widely used in many industrial fields. At present, polyester is widely used in packaging, electronic appliances, medical and health, construction, automobiles and other fields. [0003] The application range of polyester has been greatly limited due to the disadvantages of slightly poor toughness of polyester. At present, in order to improve the toughness of polyester, the glass transition temperature of polyester is often significantly r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/06C08L5/04C08K3/22C08K9/10C08G63/60C08G63/91
CPCC08L67/06C08G63/60C08G63/91C08K2003/2241C08K2201/011C08L5/04C08K3/22C08K9/10
Inventor 董冲王果连宋厚春郭文光
Owner 河南源宏高分子新材料有限公司
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