After the production of silicone products, sometimes some silicone products may not meet the required product requirements in terms of appearance and function after molding, which is due to the lack of maturity of the silicone products or incomplete vulcanization of the rubber material. So, how should we make a judgment when facing the problem of immature silicone products? What are the criteria for judgment?
1、 Overall unfamiliarity:
Performance: After the silicone product is formed, it becomes soft and sticky as a whole, and pinching its surface with nails will leave difficult to replicate nail marks. Touching this type of defective product will give a slight sticky feeling. When pulling the product by hand, its toughness and stretchability are stronger than those of fully vulcanized products.
Attention: If the temperature of the formed mold is too low or the vulcanization time is too short, it will cause overall unfamiliarity.
2、 Internally unfamiliar:
Manifestation: On solid products with larger volumes, temperature, exhaust, and discharge methods are adjusted during molding to advance the release of products that originally required a certain amount of time for vulcanization. The surface of the molded product shows no abnormalities, but in reality, the interior is not completely vulcanized.
Attention: The vulcanization time must be sufficient to ensure quality. If the vulcanization time is not guaranteed and a second vulcanization is forcibly carried out, the silicone rubber product will bulge or even burst.
3、 Local unfamiliarity:
Manifestation: After the silicone product is formed, most parts of the appearance and function can meet the quality requirements, but a small part of the parts will have completely uncured rubber, and there are more occurrences on the surface of the silicone product.
Example: Silicone buttons appear on the substrate and load inclined wall, while conductive adhesive buttons appear on the conductive substrate.
Summary:
So when producing silicone products, it is necessary to pay attention to the volume size, molding temperature, and vulcanization time of silicone products. Do not shorten the molding vulcanization time in order to blindly improve production efficiency. This not only fails to meet the improvement of production efficiency, but also has an impact on production efficiency, wasting manpower and resources, and affecting the orderly development of the company.
Shenyang LongGreen Science&Technology Co., Ltd. has corresponding products for the problems encountered during the vulcanization process of silicone products. For example, rubber product vulcanization release agent LongGreen 9346 can help with product demolding, processing aid Aflux 25 can help disperse silicone fillers. In addition, vulcanization agent S-80 and physical anti-aging agent Antilux 654 can also be provided. In short, Shenyang LongGreen Science&Technology Co., Ltd. is a high-quality supplier of rubber product raw materials, and we hope to have long-term cooperation with our customers!
