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Polymer composite material as well as preparation method and application thereof

A composite material and polymer technology, applied in the field of polymer composite materials to achieve the effect of excellent friction performance

Pending Publication Date: 2022-05-27
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the persistent problems in the performance of polymer material bearings in the prior art in terms of bearing capacity, toughness, medium resistance, and dimensional stability, etc., a high-load-bearing, high-toughness, ultra-wear-resistant, self-lubricating polymer composite material and its The preparation method, and can be made into bearings according to the desired form

Method used

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  • Polymer composite material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0105] Step 1. Preparation of functional PU emulsion

[0106] 100g of polycaprolactone diol with a molecular weight of 2000 was vacuum dehydrated, and after cooling, it was added to a reaction device containing 200g of toluene and 17.5g of toluene diisocyanate. g of 1,4-butenediol, after continuing to react for 1 h, cooling to room temperature to obtain functional PU emulsion;

[0107] Step 2. Prepare PAEK solution

[0108] Dissolve 100 g of polyaryl ether ketone in 100 g of N,N-dimethylacetamide, fully stir to dissolve, and configure into a uniform solution with a solid content of 50%;

[0109] Step 3. Preparation of radiation-modified PTFE particles

[0110] The trade name of Shenyang Wuliang Technology Co., Ltd. is PTFE micropowder for coating (particle size is 1-10 microns), directly modified with electron beam irradiation dose of 1200KGy, the treatment time is 120 days, and the daily dose is 10KGy ;

[0111] Step 4. Preparation of PU-PAEK-PTFE three-phase composite mi...

Embodiment 2

[0116] Step 1. Preparation of functional PU emulsion

[0117] 100g of polytetrahydrofuran ether glycol with a molecular weight of 1000 was dehydrated in vacuum, and after cooling, it was added to a reaction device containing 250g of acetone and 50g of diphenylmethane diisocyanate. 22.8g of 1,5-hexadiene-3,4-diol, after continuing to react for 1h, cooled to room temperature to obtain functional PU emulsion;

[0118] Step 2. Prepare PAEK solution

[0119] Dissolve 100 g of polyaryl ether ketone in 60 g of sulfolane, fully stir and dissolve, and configure into a uniform solution with a solid content of 62.5%;

[0120] Step 3. Preparation of radiation-modified PTFE particles

[0121] The trade name of Shenyang Wuliang Technology Co., Ltd. is PTFE micropowder for ink, and it is directly modified with an electron beam irradiation dose of 1200KGy, the treatment time is 120 days, and the daily dose is 10KGy;

[0122] Step 4. Preparation of PU-PAEK-PTFE three-phase composite micropo...

Embodiment 3

[0127] Step 1. Preparation of functional PU emulsion

[0128] 100g of polyethylene adipate glycol with a molecular weight of 3000 was vacuum dehydrated, and after cooling, it was added to a reaction device containing 80g of dimethyl sulfoxide and 10.68g of p-phenylenediisocyanate, and under a nitrogen atmosphere, After reacting at 70°C for 1.5 hours, 7.6 g of 2,4-hexadiene-1,6-diol was added, and after continuing the reaction for 1.5 hours, the temperature was cooled to room temperature to obtain a functional PU emulsion;

[0129] Step 2. Prepare PAEK solution

[0130] Dissolve 100 g of polyaryl ether ketone in 150 g of dimethyl sulfoxide, fully stir to dissolve, and configure into a uniform solution with a solid content of 40%;

[0131] Step 3. Preparation of radiation-modified PTFE particles

[0132] The trade name of Shenyang Wuliang Technology Co., Ltd. is PTFE micropowder for lubricating grease, directly modified with electron beam irradiation dose of 1000KGy, the treat...

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Abstract

The invention discloses a polymer composite material as well as a preparation method and application thereof. According to the polymer composite material, double bonds in polyurethane and thermal oxygen in polyaryletherketone are subjected to oxygen free radical cross-linking polymerization, and are grafted with polytetrafluoroethylene to form staggered macromolecular chains in a net form. The polymer composite material has the advantages of low thermal expansion coefficient, high dimensional stability (media such as water, lubricating oil and the like), conventional solvents such as acid and alkali resistance, high and low temperature resistance, radiation resistance and the like, and can be conveniently prepared into products such as polymer composite material bearings, plates and the like according to actual requirements. The application prospect in the field of high polymer material bearings of ships, hydropower, wind power, nuclear power and the like is very wide.

Description

technical field [0001] The application relates to a polymer composite material, which belongs to the technical field of advanced composite materials. Background technique [0002] Because of its comprehensive advantages in mechanical properties, friction and self-lubrication, processing, transportation, maintenance and cost, polymer materials have been widely installed in various mechanical devices that require sliding friction, such as hydropower, wind power, nuclear power and ships. core key components. At present, the types of commercial polymer bearing materials mainly include rubber, polyurethane, nylon, ultra-high molecular weight polyethylene, polytetrafluoroethylene, polyester, phenolic, epoxy, polyetheretherketone and polyethersulfone, etc., usually by molding , casting, injection molding, fiber dipping and irradiation, etc., are processed into shapes such as slats, cylinders, half tiles and splits for different working conditions. All types of polymer materials h...

Claims

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Application Information

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IPC IPC(8): C08L71/10C08L75/14C08L27/18C08J3/24C08J3/28C08J3/12C08G18/67C08G18/48C08G18/44C08G18/42
CPCC08L71/00C08J3/246C08J3/28C08J3/122C08G18/4277C08G18/675C08G18/4854C08G18/4233C08G18/44C08L2205/03C08J2371/10C08J2475/14C08J2427/18C08L75/14C08L27/18
Inventor 周光远姜敏王志鹏
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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