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A kind of low VOC polypropylene resin composition and preparation method thereof

A technology of polypropylene resin and composition, which is applied in the field of low-VOC polypropylene resin composition and its preparation, can solve problems such as compatibility and durability, and achieve the effects of delayed release, delayed discharge, and simple and reliable operation process

Active Publication Date: 2017-08-25
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chinese patent (CN101255252A) reduces the VOC of the material by adding an organic repellant such as isopropanol / water, but this method has compatibility and persistence problems
Although the above-mentioned method of using adsorbent can play a certain role in reducing the VOC of polypropylene, there is still a problem of adsorption balance. At higher temperatures, the balance moves to the direction of desorption, and there is a hidden danger of later release of VOC in polypropylene materials.

Method used

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  • A kind of low VOC polypropylene resin composition and preparation method thereof
  • A kind of low VOC polypropylene resin composition and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1～6

[0040] The cellulose nanocrystal (average BET specific surface area 250m 2 / g, average length 150nm, average width 9nm, average surface charge density 0.2e / nm 2 , Chinese Academy of Forestry Sciences) and the fully vulcanized powder silicone rubber (brand VP-602, average particle size 0.1 μm, gel content 90wt%; Beijing Research Institute of Chemical Industry) fully mixed to obtain the VOC inhibitor; then obtained The VOC inhibitor and copolymerized polypropylene (K9020, Sinopec Beijing Yanshan Branch), acid absorbing agent (calcium stearate, Tianjin Gangchang Chemical Co., Ltd.), antioxidant (antioxidant 1010, belong to hindered Phenolic antioxidants, the chemical name is tetrakis [β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester, and antioxidant 168, which belongs to phosphate antioxidants, chemical Named as three (2,4-di-tert-butylphenol) phosphite, the weight ratio of antioxidant 1010 and antioxidant 168 is 1:2, the two are from BASF, Germany) and pu...

Embodiment 7

[0045] The cellulose nanocrystal (average BET specific surface area 300m 2 / g, average length 100nm, average width 7nm, average surface charge density 0.3e / nm 2 , Chinese Academy of Forestry, its specific preparation method is different from the preparation method of cellulose nanocrystals in Examples 1-6 only in the reaction time under stirring at 45°C in step 2, which is 45min, and other steps are the same as in Examples 1-6 The preparation method of cellulose nanocrystals is the same) and the fully vulcanized powder silicone rubber (brand VP-602, average particle diameter 0.05 μm, gel content 75wt%; Beijing Research Institute of Chemical Industry) is fully mixed to obtain the VOC inhibitor; The VOC inhibitor that will be obtained is mixed with polypropylene (K9020, Sinopec Beijing Yanshan Branch), acid absorbing agent (calcium stearate, Tianjin Gangchang Chemical Co., Ltd.), antioxidant (antioxidant 1010, It belongs to the hindered phenolic antioxidant, the chemical name i...

Embodiment 8

[0048] The cellulose nanocrystals (average BET specific surface area 100m 2 / g, average length 300nm, average width 15nm, average surface charge density 0.1e / nm 2, Chinese Academy of Forestry, its specific preparation method is different from the preparation method of cellulose nanocrystals in Examples 1 to 6 only in the sulfuric acid / cellulose feed ratio in step 2, which is 8.75mL / g, and other steps are the same as in Example 1 The method for preparing cellulose nanocrystals in ~6 is the same) and the fully vulcanized powdered silicone rubber (brand VP-602, average particle diameter 1 μm, gel content 60wt%; Beijing Research Institute of Chemical Industry) is fully mixed to obtain the VOC inhibitor ; Then the VOC inhibitor obtained with polypropylene (K9020, Sinopec Beijing Yanshan branch), acid absorbing agent (calcium stearate, Tianjin Gangchang Chemical Co., Ltd.), antioxidant (antioxidant 1010, which belongs to the hindered phenolic antioxidant, the chemical name is tetra...

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Abstract

The invention relates to a low-VOC polypropylene resin composition and a preparation method thereof in the field of plastics. The low-VOC polypropylene resin composition comprises the following components blended: polypropylene and a VOC inhibitor; wherein, based on 100 parts by weight of polypropylene, the VOC inhibitor is 0.1 to 10 parts by weight; The VOC inhibitor is composed of the following components in percentage of the total weight of the VOC inhibitor: fully vulcanized powdered silicone rubber 0wt% to 80wt%, cellulose nanocrystals 20wt% to 100wt%; the fully vulcanized powdered silicon rubber The rubber particles of the rubber have an average particle diameter of 0.05-1 μm, have a cross-linked structure, and have a gel content of 60 wt% or higher. The BET specific surface area of ​​the cellulose nano crystal is 100-350m2 / g, the surface charge density is 0.1-0.4e / nm2, the length is 90-300nm, and the width is 5-15nm. The low-VOC polypropylene resin composition of the present invention significantly reduces the VOC content of the polypropylene composition through the method of compounding the VOC inhibitor and the acid absorbing agent, the operation process is simple, and it is suitable for high-end automotive interior parts with high environmental protection requirements , medical and food packaging materials and other fields.

Description

technical field [0001] The invention relates to a polypropylene resin composition in the field of plastics, in particular to a low-VOC polypropylene resin composition and a preparation method thereof. Background technique [0002] Polypropylene (PP) has been widely used in various fields of people's life because of its excellent comprehensive properties, wide range of sources, high quality and low price. However, the existing polypropylene materials and products all have the problems of releasing volatile organic compounds (VOC) to pollute the environment and endanger people's health in varying degrees, which largely limits the use of polypropylene materials in high-end automobiles with high environmental protection requirements. Applications in fields such as decorative parts, medical and food packaging materials. Therefore, the research and development of environmentally friendly low-VOC polypropylene resin and materials can expand the application field of PP and meet the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/12C08L23/14C08L83/04C08L1/02C08K3/22C08K5/098C08K3/34
Inventor 康鹏金滟蔡涛丁树岩石胜鹏刘善元张静
Owner CHINA PETROLEUM & CHEM CORP
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