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High-rigidity and high-toughness high polymer material

A high-molecular material and high-toughness technology, applied in the production of bulk chemicals, etc., can solve problems such as insignificant reinforcement effect, decreased impact resistance, rigidity, and elastic instability

Pending Publication Date: 2022-08-05
小水牛科技(宁波)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the poor compatibility between the inorganic rigid particles and the polypropylene material in the former method, there are problems such as uneven dispersion in the polypropylene material system, easy agglomeration after uniform dispersion, and easy precipitation in the organic material, resulting in polypropylene composite materials. The elastic performance is greatly reduced, the reinforcement effect is not obvious, and there are problems such as rigidity and elastic instability.
The latter method cannot guarantee the high elasticity and high rigidity of polypropylene composites due to some shortcomings of nucleating agents, such as phosphate and carboxylate nucleating agents, although they can improve the rigidity of polypropylene, but Can cause reduced impact resistance and warping
And sorbitol nucleating agent DBS, but its improvement of rigidity is not outstanding

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Preparation of Monoangular Vinyl POSS:

[0032] After mixing 0.1mol monochloropropyl-POSS, 0.11mol propenol and 300mL toluene / ethanol (the volume ratio of toluene and ethanol is 3:1), add 0.11mol sodium hydroxide, turn on the condensed water, heat to 60℃, stir After the reaction was carried out for 5 h, the temperature was reduced to room temperature, and the solution was rotary-evaporated under reduced pressure, washed with deionized water, and dried to obtain the monoangular vinyl POSS.

Embodiment 2

[0034] Preparation of copolymers of modified ethylene and octene:

[0035] In the autoclave, inject 200 mL of toluene, 0.2 g of catalytic promoter, 100 g of 1-octene and 15 g of mono-vinyl POSS prepared in Example 1, stir and heat to 95 ° C, and then inject 50 mL of toluene solution containing 0.5 g of catalyst , then pressurized with ethylene to 1.8MPa, kept the pressure for 2h, released the pressure, terminated the reaction with acidified ethanol, filtered, collected the polymer, washed with ethanol and water, and dried to obtain the copolymer of modified ethylene and octene; The catalytic assistant is triisobutylaluminum; the catalyst is a single titanocene catalyst.

Embodiment 3

[0037] Preparation of copolymers of modified ethylene and octene:

[0038]In the autoclave, inject 200 mL of xylene, 0.5 g of catalytic promoter, 100 g of 1-octene and 30 g of mono-vinyl POSS prepared in Example 1, stir and heat to 115 ° C, and then inject 50 mL of toluene containing 1.2 g of catalyst The solution was then pressurized with ethylene to 1.2MPa, kept under pressure for 3 hours, released the pressure, terminated the reaction with acidified ethanol, filtered, collected the polymer, washed with ethanol and water, and dried to obtain a copolymer of modified ethylene and octene. ; Described catalyst assistant is triisobutylaluminum, diethylzinc mixed composition according to mass ratio 1: 1; Described catalyst single titanocene catalyst.

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Abstract

The invention relates to a high-rigidity and high-toughness high polymer material, and belongs to the technical field of high polymer material preparation. Comprising the following raw materials in parts by weight: 550-630 parts of polypropylene, 210-240 parts of a copolymer of modified ethylene and octylene, 10-15 parts of a nucleating agent, 8-11 parts of a compatilizer, 12-18 parts of basic magnesium sulfate whiskers, 20-28 parts of a weather-resistant agent, 26-38 parts of an antioxidant, 5-9 parts of a lubricant and 30-60 parts of a scratch-resistant agent. The polypropylene R200P and the polypropylene J340 are used as polypropylene base materials, then the modified ethylene and octylene copolymer, the nucleating agent, the compatilizer, the basic magnesium sulfate whisker, the weather-resistant agent, the antioxidant, the lubricant and the scratch-resistant agent are introduced, and through scientific compatibility of all the materials, the obtained high polymer material has high rigidity and high toughness at the same time; meanwhile, good wear resistance, insulativity and cold resistance are shown.

Description

technical field [0001] The invention belongs to the technical field of polymer material preparation, and in particular relates to a high-rigidity and high-toughness polymer material. Background technique [0002] Polypropylene (PP for short) is one of the thermoplastics with the largest output. It has the advantages of low density, good heat resistance, excellent bending fatigue resistance, excellent chemical stability and electrical properties, so it is widely used in Automobiles, home appliances, office supplies, electronic appliances and other fields. Polypropylene is a highly crystalline polymer with good rigidity, but the parts made of it have the problems of insufficient elastic properties and easy deformation, which greatly limits its further use in the market. [0003] In general, new elastomers are introduced into polypropylene materials to improve their elastic properties. [0004] However, the introduction of new elastomers into polypropylene materials tends to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L23/08C08K7/08C08F210/16C08F210/14C08F230/08
CPCC08L23/12C08F210/16C08L23/0892C08K7/08C08F210/14C08F230/085Y02P20/52
Inventor 王峰
Owner 小水牛科技(宁波)有限公司
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