Development of Eco-Friendly Flame-Retarded High Density Polyethylene Composites

2020 ◽  
Vol 847 ◽  
pp. 55-60
Author(s):  
Yeng Fong Shih ◽  
Wan Ling Tsai ◽  
Venkata Krishna Kotharangannagari
Keyword(s):  
Impact Strength ◽  
Flame Retardant ◽  
Coupling Agent ◽  
High Density Polyethylene ◽  
Silane Coupling Agent ◽  
High Density ◽  
Silane Coupling ◽  
Surface Modified ◽  
The Impact ◽  
Modified Diatomite

The use of ammonium polyphosphate (APP) and expanded graphite (EG) as a flame retardant for polymer generally requires a relatively high amount of addition to achieve a flame-retardant effect, and is liable to cause a decrease in strength of the material. Therefore, in this study waste diatomite was used as an eco-friendly flame-retardant for high density polyethylene (HDPE) to reduce the amount of APP and EG and can reach the flame-retardant level. Moreover, the waste diatomite was heat treatment and surface modified by silane coupling agent to improve its compatibility with HDPE. The results show that the tensile strength of the HDPE drops sharply after the addition of the APP and EG. However, replace some of the APP and EG by the modified diatomite can slow down the decline and maintain the basic physical properties of the material. The impact strength of HDPE was also decreased by the addition of APP, EG and untreated diatomite. However, the impact strength of HDPE was increased after adding the surface modified diatomite. It can be seen from the experimental results that the addition of the waste diatomite modified by the silane coupling agent can reduce the usage of the flame retardant such as APP and EG, and increase the strength by increasing the compatibility between the plastic and the inorganic material. Moreover, this eco-friendly formulation can reach the UL-94 HB level, and it can be applied to interior decoration or as building materials in the future. Thus, it can not only recycle the wastes, but also reduce the threat caused by fire.

A new amino silane coupling agent for old corrugated container fibers/high density polyethylene composites

2016 ◽  
Vol 39 (6) ◽  
pp. 2054-2064 ◽  
Author(s):  
Arash Rashno ◽  
Roholah Mohebi Damabi ◽  
Pouria Rezaee Niaraki ◽  
Shervin Ahmadi
Keyword(s):  
Coupling Agent ◽  
High Density Polyethylene ◽  
Silane Coupling Agent ◽  
High Density ◽  
Amino Silane ◽  
Silane Coupling ◽  
Polyethylene Composites

Evaluation of the Aging Behavior of High Density Polyethylene in Thermal Oxidative Environment by Principal Component Analysis

2017 ◽  
Vol 727 ◽  
pp. 447-449 ◽  
Author(s):  
Jun Dai ◽  
Hua Yan ◽  
Jian Jian Yang ◽  
Jun Jun Guo
Keyword(s):  
Principal Component Analysis ◽  
Impact Strength ◽  
High Density Polyethylene ◽  
Tensile Modulus ◽  
Principal Component ◽  
Component Analysis ◽  
High Density ◽  
Aging Behavior ◽  
Data Set ◽  
The Impact

To evaluate the aging behavior of high density polyethylene (HDPE) under an artificial accelerated environment, principal component analysis (PCA) was used to establish a non-dimensional expression Z from a data set of multiple degradation parameters of HDPE. In this study, HDPE samples were exposed to the accelerated thermal oxidative environment for different time intervals up to 64 days. The results showed that the combined evaluating parameter Z was characterized by three-stage changes. The combined evaluating parameter Z increased quickly in the first 16 days of exposure and then leveled off. After 40 days, it began to increase again. Among the 10 degradation parameters, branching degree, carbonyl index and hydroxyl index are strongly associated. The tensile modulus is highly correlated with the impact strength. The tensile strength, tensile modulus and impact strength are negatively correlated with the crystallinity.

Effects of Coupling Agents on the Mechanical Properties of the Calcium Carbonate-Plastic Composite Packaging Materials

2012 ◽  
Vol 200 ◽  
pp. 321-324 ◽  
Author(s):  
Zhao Xia Wang ◽  
De Gao ◽  
Wen Cai Xu
Keyword(s):  
Mechanical Properties ◽  
Calcium Carbonate ◽  
Coupling Agent ◽  
Silane Coupling Agent ◽  
Great Influence ◽  
Coupling Agents ◽  
Packaging Materials ◽  
Plastic Composite ◽  
Silane Coupling ◽  
The Impact

Mechanical properties of the calcium-plastic composite have a great influence on the containers. The main factors affecting the mechanical properties are the process and material formulations. This paper mainly describes its impact of the addition of coupling agent. Under the usage of analysis of variance on single factor experiment, the mechanical properties of the calcium carbonate-plastic composite with three different coupling agents (silane, titanate and aluminate) were studied in the same test conditions. The results show that: The type and quantity of the coupling agent effect a lot on the mechanical properties of the composite. The silane coupling agent is the most suitable for calcium carbonate-plastic composite packaging materials, and the compatibility of calcium carbonate and polyethylene can be improved. When the silane coupling agent was at a 2.25 wt. % concentration, the tensile and flexural strength were improved obviously, especially the tensile strength increased by 23.24%, but the impact strength improved slightly.

The Preparation of Flexible Substrate Using BaTiO3/Polymer Composites for Application in High Frequency Devices

2012 ◽  
Vol 512-515 ◽  
pp. 1142-1145 ◽  
Author(s):  
Chien Min Cheng ◽  
Kai Huang Chen ◽  
Yuan Tai Hsieh ◽  
Fuh Cheng Jong
Keyword(s):  
Coupling Agent ◽  
Silane Coupling Agent ◽  
Flexible Substrate ◽  
Sol Gel ◽  
Ceramic Powder ◽  
Electrical Measurement ◽  
Organic Polymer ◽  
Physical Analysis ◽  
Silane Coupling ◽  
The Impact

BaTiO3/ which has good dielectric properties, they were widely used in ceramic capacitors, thermistors, etc. In this study, BaTiO3/ ceramics prepared by sol-gel powder, then mixed in the organic polymer polyether imide (PEI) and dispersant (surface active agents) and silane coupling agent (Silane Coupling Agent) of the composite material on flexible substrates, And analysis of its properties and electrical properties. Increase by a ceramic powder, to explore the impact of the substrate. In the physical analysis is used XRD, SEM to measure the intensity of crystalline phase and surface uniformity of the electrical measurement using HP4294 measuring dielectric constant and dielectric loss.

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