Degradable polypropylene plastic as well as preparation method and application thereof

A technology of polypropylene plastic and polypropylene, which is applied in the field of degradable polypropylene plastic and its preparation, can solve the problems of the use restriction of polypropylene plastic products, achieve the purpose of enhancing the bonding force, reducing the possibility of falling off, and reducing voids Effect

Active Publication Date: 2020-12-11
余姚市宏邦包装有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, due to the physical and chemical properties of cellulose, there are still some defects when cellulose is added as a degradable additive for polypropylene plastics.
When cellulose is used as a polypropylene plastic additive, the use of polypropylene plastic products will be limited

Method used

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  • Degradable polypropylene plastic as well as preparation method and application thereof
  • Degradable polypropylene plastic as well as preparation method and application thereof
  • Degradable polypropylene plastic as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0036] Preparation Example 1: A degradation agent. In this preparation example, each part of the degradation agent is made of raw materials with the particle size shown in Table 1 and the parts by weight shown in Table 2. The mode of preparation degradation agent is:

[0037] Add epoxy resin as a binder to the cellulose, stir evenly to form agglomerates of cellulose and epoxy resin, and ball-mill the agglomerates after natural drying to make the agglomerates larger in particle size, which is convenient for the activated carbon to densely wrap the cellulose. Mix the epoxy resin as the adhesive, the cobalt naphthenate as the accelerator, and the particles of the agglomerate, stir evenly, spray the agglomerate with the adhesive and accelerator on the outer layer into the hydrophobic activated carbon, and shake Stir, dry, and gently shake to remove the activated carbon that is not combined with the adhesive, and sieve with a sieve with a mesh number of 100. The degradant is on the...

preparation example 2-7

[0039] A degradation agent differs from Example 1 in that it is made from raw materials including the particle size shown in Table 1 and the weight shown in Table 2.

[0040] Raw material particle size in table 1 preparation example 1-7

[0041]

[0042]

[0043] Raw materials and weight in table 2 preparation example 1-7

[0044]

preparation example 8

[0046] A degradation agent, the difference from Comparative Example 2 is that the activated carbon coated with cellulose is ordinary activated carbon.

[0047] Take 5cm 3The degradation agent prepared in Preparation Examples 1-8 was soaked in water for 8 hours at room temperature and then taken out for measurement.

[0048] Volume after degradation agent immersion in table 3 preparation example 1-8

[0049] Preparation example Degradant volume (cm 3 )

[0050] Test results and analysis: in conjunction with Preparation Examples 1-8 and Table 3, it can be seen that the volume of the degradation agent of Preparation Examples 1-6 does not increase significantly, and the volume of the degradation agent of Preparation Example 7 increases. Therefore, the outer coating of the aggregate is made of hydrophobic activated carbon. Compared with the uncoated hydrophobic activated carbon outside the agglomerate, the degradant has a reduced possibility of absorbing water and har...

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Abstract

The invention discloses degradable polypropylene plastic as well as a preparation method and application thereof, and relates to the field of polypropylene plastic. The degradable polypropylene plastic is prepared from the following raw materials in parts by weight: 35-60 parts of polypropylene, 1-5 parts of ethylene propylene diene monomer, 5-15 parts of glass fibers, 1-5 parts of vermiculite, 15-20 parts of calcium silicate, 1-5 parts of dibutyl phthalate and 10-15 parts of a degradation agent, wherein the degradation agent is cellulose coated with activated carbon. The polypropylene plasticcan be applied to a packaging cover, has degradability, can be applied to a humid environment, and reduces the possibility that a degradation agent in polypropylene absorbs water to change the properties of polypropylene.

Description

technical field [0001] The application relates to the field of polypropylene plastics, more specifically, it relates to a degradable polypropylene plastic and its preparation method and application. Background technique [0002] Polypropylene plastic is a semi-crystalline thermoplastic with high impact resistance, strong mechanical properties, and resistance to various organic solvents and acid and alkali corrosion. It is widely used in the industry and is one of the common polymer materials. one. After traditional polypropylene plastic products enter the environment, they are difficult to degrade, causing long-term and deep-seated ecological environmental problems. [0003] At present, polypropylene-based degradable plastics include the addition of degradable substances to traditional petroleum-based plastics. After the degradable substances added to polypropylene plastics are degraded, the plastic products are decomposed into smaller petroleum-based plastic fragments, whi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L23/16C08L1/02C08L63/00C08L93/04C08K13/04C08K7/14C08K7/26C08K3/34C08K5/12
CPCC08L23/12C08L2201/06C08L2205/18C08L2205/035C08K2201/014C08K2201/005C08L23/16C08L1/02C08L63/00C08L93/04C08K13/04C08K7/14C08K7/26C08K3/34C08K5/12Y02W30/62
Inventor 胡建忠
Owner 余姚市宏邦包装有限公司
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