Supercharge Your Innovation With Domain-Expert AI Agents!

Composition containing modified high density polyethylene for hollow blow molding products

A high-density polyethylene and composition technology, which is applied in the field of polymer material processing and modification, can solve the problems of poor notched impact performance and poor cracking property, and achieve the effects of improving stress crack resistance and improving notched impact strength.

Inactive Publication Date: 2016-01-27
天津市科润特包装有限公司
View PDF0 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The high-density polyethylene composition prepared by the invention overcomes the shortcomings of poor environmental stress crack resistance and poor notched impact performance, and can be used to produce hollow blow molded parts

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The composition of the modified high-density polyethylene used for hollow blow molding products, the mass percentage ratio of each component is shown in Table 1.

[0023] raw material name

weight percentage

HDPE

82.0

LLDPE

15.0

Nano-CaCO 3

0

liquid paraffin

3.0

[0024] The composition of the modified high-density polyethylene used for hollow blow molding products of this embodiment, its preparation method is as follows:

[0025] Weigh according to the percentages of raw materials used in Table 1, and then stir in a high-speed mixer for 3 to 10 times at high speed, each time for 8 to 10 minutes. The temperature of the twin-screw extruder is set at 160-210°C, and the mixed materials are added to the twin-screw extruder in batches to melt and plasticize.

[0026] Table 5 shows the detection results of the composition of the modified high-density polyethylene used for hollow blow molding products in this e...

Embodiment 2

[0028] The composition of the modified high-density polyethylene used for hollow blow molding products, the ratio of the mass percentage of each component is shown in Table 2.

[0029] raw material name

weight percentage

HDPE

77.0

LLDPE

15.0

Nano-CaCO 3

5.0

liquid paraffin

3.0

[0030] The composition of the modified high-density polyethylene used for hollow blow molding products of this embodiment, its preparation method is as embodiment 1:

[0031] Table 5 shows the detection results of the composition of the modified high-density polyethylene used for hollow blow molding products in this example.

Embodiment 3

[0033] The composition of the modified high-density polyethylene used for hollow blow molding products, the mass percentage ratio of each component is shown in Table 3.

[0034] raw material name

weight percentage

HDPE

72.0

LLDPE

15.0

Nano-CaCO 3

10.0

liquid paraffin

3.0

[0035] The composition of the modified high-density polyethylene that is used for hollow blow molding product of the present embodiment, its preparation method is as embodiment 1:

[0036] Table 5 shows the test results of the composition of the modified high-density polyethylene used for hollow blow molding products in this example.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
melting pointaaaaaaaaaa
decomposition temperatureaaaaaaaaaa
densityaaaaaaaaaa
Login to View More

Abstract

The invention relates to the field of a high polymer material processing and modification, and especially relates to a composition containing modified high density polyethylene for hollow blow molding products. The composition comprises the following components in percentages by weight: 60-89% of high density polyethylene, 10-20% of linear low density polyethylene, 0-15% of nanometer calcium carbonate and 1-5% of liquid paraffin. The preparation method comprises the following steps: (1) polypropylene granules and various needed additives are weighed according to the weight percentages of the raw materials, the raw materials are added into a high speed mixer for 3-10 times of high speed stirring, wherein 8-10 minutes each time; (2) temperature of a double screw extruder is set at 160-210 DEG C, batches of mixed materials are added into the double screw extruder for fusion and plasticization. The prepared composition does not reduce other mechanical performances of the system, and greatly improves notch impact strength of the material.

Description

technical field [0001] The invention relates to the field of polymer material processing and modification, in particular to a composition of modified high-density polyethylene used for hollow blow molding products. Background technique [0002] High-density polyethylene (HDPE) is a highly crystalline, non-polar thermoplastic resin, which is tasteless, non-toxic, odorless, and has excellent heat resistance and cold resistance. It is almost insoluble in any organic solvent at room temperature, resistant to various acids, alkalis, salts, low water absorption and water vapor permeability, and easy to form and process. It has become the main method for producing hollow plastic cylinders by extrusion hollow blow molding. one of the materials. However, high-density polyethylene has disadvantages such as poor barrier properties to oxygen, carbon dioxide and hydrocarbons, poor self-cleaning properties, poor environmental stress cracking resistance, and poor low-temperature impact pr...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L23/08C08K3/26
Inventor 王守芳
Owner 天津市科润特包装有限公司
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com