Resin
Resins play an important role in various industries, such as plastics, paints, adhesives, and electronic parts, and proper viscosity management according to their properties is essential. In particular, the viscosity of resins affects the fluidity and processability of products, and can make a big difference in their quality and performance, so precise measurement and management are required. In this article, we will explain the types of resins and the importance of viscosity measurement, and also consider the risks that can arise from improper management.
Types of resins
Since resins have different characteristics depending on their use and chemical components, they must be selected according to their purpose. Below are some representative types of resins.
Thermoplastic resins
Polypropylene (PP)
A resin with high heat resistance and chemical stability, lightweight and easy to process. Widely used in automobiles and home appliances.
Polyethylene (PE)
Excellent chemical resistance and tough properties make it used for packaging materials and containers.
Polycarbonate (PC)
High transparency and impact strength, used for optical and electronic parts.
Thermosetting resins
Epoxy resins
It has strong adhesive power, excellent durability and chemical resistance, and is widely used as adhesives and paints.
Polyurethane resins
It has elasticity and abrasion resistance, and is used as coating agents and flexible parts.
Phenol resins
It has excellent high temperature resistance and electrical insulation, and is used for insulating parts of electronic devices and parts that require heat treatment.
Special purpose resins
Silicone resins
It has excellent high temperature resistance and electrical insulation, and is used in electrical equipment and the aerospace industry.
Acrylic resins
It has excellent transparency and UV resistance, and is used for signs and car light covers.
Importance of resin viscosity measurement
The viscosity of resin has a significant effect on its processability, fluidity, and solidification speed, so it is necessary to measure and manage it appropriately. If the viscosity is inappropriate, the following risks will occur.
Deterioration of processing performance
Deterioration of fluidity
If the viscosity is too high, the resin will not flow evenly, making it difficult to mold and apply. Especially when injecting into a mold or using as a paint, it becomes difficult to apply evenly, which has a negative impact on product quality.
Processing defects
If the viscosity is too low, the resin will flow excessively, resulting in unintended shapes in molded products, thin coatings, and reduced performance.
Product quality deterioration
Poor solidification
If the viscosity is not properly controlled, the resin will not harden (polymerize) completely, which may cause the product to lack strength, peel, or reduce durability.
Poor adhesion
If the viscosity is inappropriate, the adhesive will be weak and there is a risk of parts peeling off when used as an adhesive.
Production line problems
Clogged pumps and supply equipment
If the viscosity is too high, pumps and automatic supply systems may clog or fail to discharge, causing the production line to stop.
Load on machines
If the viscosity is too high, excessive loads will be placed on processing equipment and injection equipment, causing premature wear and breakdown of machines.
Economic loss
Decreased production efficiency
If viscosity management is insufficient, many defective products will be produced in the production process, which will increase costs. In addition, the cost of repair and reprocessing will be high, resulting in large economic losses.
Waste of materials
If resin is used with an inappropriate viscosity, an excess amount will be used, resulting in waste of materials. This will increase raw material costs and drive up costs.
Environmental risk
Increased waste
If viscosity is not properly managed, product defects and excessive waste will occur, which is a concern for the impact on the environment. In particular, when chemically unstable resins are used, waste disposal may be difficult.
Summary
Measuring and managing resin viscosity is essential to maintain product quality and processability. Maintaining the appropriate viscosity can improve product performance, improve production efficiency, and reduce costs. In addition, strict management is required because improper viscosity management can lead to reduced product quality, production line troubles, and even increased economic losses and environmental risks. As part of quality control, thoroughly measure the viscosity of resins and aim for optimal use.
RION's viscometer is recommended for measuring viscosity!
RION's viscometer is recommended for the following three reasons.
１．Confidence in accuracy
RION has a long history of manufacturing and developing viscometers. Utilizing our many years of knowledge and experience, we are able to achieve accurate viscosity measurements that are competitive with our competitors.
２．Portable type that can be measured anywhere
Most common viscometers are large and heavy. However, RION's VT-06 is compact and lightweight while maintaining measurement accuracy. The structure is simple, so even people with no knowledge or experience of viscosity measurement can easily measure it.
３．Loved by many customers around the world
RION is a Japanese manufacturer, but the viscometer VT-06 is used not only by customers in Japan but also by customers in countries around the world. VT-06 may be used for quality control in the things you usually use and eat.