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A high rigidity and high heat resistance homopolypropylene material and preparation method thereof

A homopolypropylene, high heat-resistant technology, applied in the field of preparation of high-rigidity and high-heat-resistant homopolypropylene materials, can solve problems that affect the normal use of products, cannot be assembled and used, and have high shrinkage and warping rates of products, achieving Good melt fluidity and rigidity, reduced shrinkage and warpage, and high isotactic index

Active Publication Date: 2016-08-24
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When HC9006BM is used in small household appliances, the shrinkage and warping rate of the product is too large, and the product is easy to warp and cannot be assembled and used, which affects the normal use of the product

Method used

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  • A high rigidity and high heat resistance homopolypropylene material and preparation method thereof
  • A high rigidity and high heat resistance homopolypropylene material and preparation method thereof
  • A high rigidity and high heat resistance homopolypropylene material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment one: the preparation of homopolypropylene resin:

[0024] 1. The raw materials for the production of base resin are the following substances:

[0025] 1) Polymer grade propylene

[0026] project

purity%

Water content 10 -6

CO content10 -6

CO 2 Content 10 -6

index

≥99．35

≤5

≤0.2

≤4

[0027] 2) Catalyst DQC-401, cocatalyst TEAL, electron donor DONOR, antistatic agent Atmer163

[0028] 3) Hydrogen

[0029] project

purity%

Water content 10 -6

CO content10 -6

Total Sulfur Content10 -6

index

≥95

≤5

≤5

≤1

[0030] Add propylene to the loop reactor, and add catalyst DQC-401, cocatalyst triethylaluminum (TEAL), electron donor DONOR, antistatic agent Atmer163. Among them: catalyst DQC-401 is added according to the output of 40kg / ton; TEAL / C 3 (Propylene) = 0.16; TEAL / DONOR=10; antistatic agent Atmer163 is 2~3kg / h. Stir evenly, control the reaction tempe...

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Abstract

The invention discloses a high-rigidity high-heat-resistance homo-polypropylene material which is prepared from the following raw materials: a homo-polypropylene resin, an antioxidant, a halogen absorbent and a nucleating agent. The homo-polypropylene resin is prepared by the following steps: adding the raw material propylene into a loop reactor, adding the catalyst, cocatalyst, electron donor and antistatic agent, and uniformly stirring, wherein the reaction temperature in the loop reactor is controlled at 70+ / -1 DEG C, the reaction pressure is controlled at 3.4-3.8 MPa, and the hydrogen concentration is controlled at 3500-4500 ppm. The invention also discloses a preparation method of the high-rigidity high-heat-resistance homo-polypropylene material. The high-rigidity high-heat-resistance homo-polypropylene material has higher melt index, bending modulus and heat-deformation temperature, and can satisfy the raw material requirements of injection molding manufacturers of small home appliances, automobiles and the like.

Description

technical field [0001] The invention relates to a homopolypropylene material with high rigidity and high heat resistance. The invention also relates to a preparation method of the high rigidity and high heat resistance homopolypropylene material. Background technique [0002] Electric kettles, rice cookers, soybean milk makers, water dispensers, hair dryers and other small household appliances have increasingly entered people's lives. In addition to the use of metal for some electronic components, the main components of small household appliances are plastics. At present, the raw material for plastics for small household appliances is polypropylene. Polypropylene special materials for small household appliances not only require gorgeous appearance, good gloss and high heat resistance, but also require easy processing, strong bending strength and high heat distortion temperature. [0003] In order to break the monopoly of imported plastic materials for small household appli...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/12C08K13/02C08K5/00C08K3/22C08K5/098C08K5/134C08K5/526C08F110/06B29B9/06
CPCC08F110/06C08F2400/02C08K3/22C08K5/098C08K5/1345C08K5/526C08K13/02C08K2003/2224C08K2003/2227C08K2201/011C08L2201/08C08L2205/24C08L23/12
Inventor 梁平蔡伟郑士录易志勤柯君豪马宇罡王碧琼张飘凌梁志斌
Owner CHINA PETROLEUM & CHEM CORP
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