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Dongguan Mingzhen Rubber & Plastic Products Co., Ltd.

18 yearsFocus on R & D and production of silicone rubber products

Become a respected supplier of silicone rubber products

Service Hotline:

+86-136 6988 8704

Dongguan Mingzhen Rubber & Plastic Products Co., Ltd.
18 years focus on silicone rubber products research and development and production
Professional customization

Dongguan Minz Rubber & Plastics Co., Ltd.

Add.: No.4, New Industrial Road, Shipai Tangwei, shipai town, Dongguan City
Tel: +86-0769-8665 2688
Fax: +86-796-8180 6477
Contact: Miss Li +86-136 6988 8704
Mailbox:lixiaoxia@dgminz.com.cn

Why high temperature silicone products silicone tube will change color

Why high temperature silicone products silicone tube will change color

2021-01-16 16:35:51

Silicone tube manufacturers analyze for you: it is of course a good idea to use anti-yellow agent and anti-yellow vulcanizing agent, but it is also important to pay attention to whether the silicone tube you use is ideal. Silicone products factories cannot add too many internal release agents and zinc stearate. Therefore, it is necessary to communicate with suppliers to see if there is hydrogen-containing silicone oil in it to provide anti-yellow effect. If the iron content in it is too high, a silicone key manufacturer will definitely yellowing. Process of silicone products. Molding molding is the most common manufacturing process, which is mainly completed by mold matching. The shape of the mold determines the shape of the silicone product. Molded silicone products are usually molded by applying pressure through a vulcanizing machine after the high-temperature mold of the seal is put into the solid silicone raw material added with vulcanizing agent, and the high-temperature sulfur is solidified. The hardness of molded silicone rubber products is usually 30 C- 70 C. This manufacturing process is relatively simple and suitable for all silicone products. Injection (injection) this process is a relatively high quality requirements, is a combination of liquid silica gel and plastic. Its products are characterized by good thermal stability, cold resistance rubber buttons, excellent electrical insulation performance, and no toxic substances when burned. Therefore, it is used in health products, automobiles, baby products, medical supplies, diving supplies, kitchen utensils and seals. What is the cause of the discoloration of silicone tube products at high temperature? We will all encounter some discoloration of products in our normal work. The latex tube will turn white when stored at normal temperature and the silicone tube will turn yellow at high temperature. The existing problem with silicone products is that the transparent silicone tube that food needs to contact will turn yellow after being placed at a high temperature of 200 ℃ for 4 hours. What is going on. C- 15 with silica gel high anti-yellow vulcanizing agent, the problem may be solved by silica gel keys. Generally, food-grade products have this requirement. To prevent secondary sulfur yellowing, be sure to use anti-yellowing catalyst. Both are indispensable, but these two things will make it a little sticky during hydraulic production, which is something to pay attention to by the sealing ring. According to the amount of silica gel plus 2-3 thousandths of hydrogen-containing silicone oil, high hydrogen-containing silicone oil can solve the yellowing problem, but the product may be a little brittle and sticky. A layer of silicone oil can be sprayed on the mold to solve the demoulding problem of liquid silica gel. In addition, platinum is the only bridge.

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How to use silicone products silicone strip application field

How to use silicone products silicone strip application field

2021-01-15 11:15:40

How to understand the silicone products non-toxic harmless, silicone products high temperature, the advantages of long service life in the life of the use of silicone products factory more and more widely, but a lot of people on whether the silicone toxic doubt. 1. Liquid silica gel: silica gel is a highly active adsorption material and is an amorphous substance. Its chemical molecular formula is mSiO2 · nH2O. Silicon is a chemical element of a silica gel key manufacturer and is also a rich element in the earth's crust. Its compounds normally form sand, rock formation and glass. Silicone is considered to be a suitable material for implantation into human body. All human bodies of seals have some silicone. 2, curing agent: there are two kinds of curing agent, one is the platinum curing agent of addition type silica gel, the other is the organic tin curing agent of condensation type silica gel, platinum curing agent is non-toxic and tasteless, and organic tin curing agent is a little smelly rubber products. 3. Addition silicone: it is a two-component addition silicone material, which can be cured at room temperature or heated. Silicone can be used for a long time and maintain its soft and elastic properties of rubber buttons in the temperature range of -65 C- 200 C. It has excellent electrical properties and chemical stability, water resistance, ozone resistance, weather aging resistance, non-corrosive, physiologically inert, non-toxic and tasteless, low linear shrinkage, easy to operate and other characteristics, more used in food, medical and other aspects. I don't know if you have heard of the silicone strip, or why it is used. I don't know in which aspect it is applied. Under the action of sewing equipment, it is combined with the cloth to complete the installation of a textile picture, which plays the role of uniform and crisp silicone products. Of course, it is also used that the cloth is slightly soft and can produce a certain degree of stretching adaptation. What details should be paid attention to when using the silicone strip. When using, we should pay attention to these matters: silicone silicone key strips and rubber strips should have moderate flexibility and width, and cannot be cracked and difficult to take off the needle during sewing (need to be sealed when stored for a long time, and the opening is easy to age and become brittle for a long time). 1. The inside is in the shape of a U, and the cut cloth edge of the sealing ring can be put in directly, which is very easy to sew. 2. The exterior is beautiful and easy to insert into the side groove. Because the silicone strip wraps the cloth edge, whether you are a hot cloth edge or a cold cut cloth edge, the burrs are covered with liquid silicone, which is beautiful and classy, wraps the cloth edge, and is easy to insert. Into the side groove, saving a lot of time and labor.

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Why the surface of the rubber seal of the seal fitting will crack

Why the surface of the rubber seal of the seal fitting will crack

2021-01-14 11:16:48

What are the factors affecting the surface of rubber seals in silicone products factory. Analysis of the causes of cracking of silicone rubber seal fittings. Generally, the service life of silicone rubber products is relatively long. If the silicone rubber products crack after not long use of the seal, it will seriously affect the customer's experience and trust in the manufacturer. Therefore, the quality of silicone products has become a crucial item. There are actually many ways to prevent the fracture of silicone rubber products, except to comply with the use environment of rubber products, more importantly, it is important to control the product quality at the source. The raw materials for the production of silicone rubber products are the key. If the raw materials are better, the products produced will have good service life. Rubber keys will have different product quality requirements if the prices of the products are different in the market. Therefore, silicone products factories will have different requirements for raw materials. Manufacturers of brand silicone seals usually choose rubber materials with better extensibility. Silicone cake mold products can be cleaned after rinsing in water, but also in the dishwasher. Long life: silicone material properties are very stable, made of silicone products cake mold products, than other materials have a longer life. Soft and comfortable: thanks to the softness of the silicone material, the cake mold product feels comfortable to the touch, is extremely flexible and does not deform. Silica gel products have an open porous silica gel button structure, can absorb many substances, is a good desiccant, adsorbent and catalyst carrier, silica gel adsorption is mainly physical adsorption, can be regenerated and used repeatedly, in alkali metal silicate (such as sodium silicate) sealing ring solution with acid, acidification, and then add a certain amount of electrolyte stirring, that is, the formation of silicic acid gel, alternatively, the addition of an acid or ammonium salt to a more concentrated sodium silicate solution can also produce a silicic acid gel. Under the pressure of liquid silica gel in the abnormal operation of equipment, the leakage of rubber seals exceeds the allowable level. The leakage of rubber seals will not only cause the loss of medium, but also damage the hard sealing data due to the constant leakage of equipment medium. The sealing surfaces of rubber seals commonly used in silicone product factories are smooth and flat. However, it is also very difficult to achieve absolute leakage under the pressure of medium, under the designated pressure value, if the rubber seal is invisible to the naked eye at the outlet end and the silicone key manufacturer does not leak, it is considered that the sealing function is qualified.

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How to enhance rubber sealing ring for anti-aging silicone products

How to enhance rubber sealing ring for anti-aging silicone products

2021-01-13 16:37:46

Some people say that when he mentions silicone products, he will think of silicone key manufacturers of gender products in his mind. Many people also say that when he mentions silicone products, he will feel that such products are only one kind of raw material. However, people also need to say that apart from gender products, there are also silicone product mobile phone cases that he can understand when discussing silicone products, the real silicone seal products in addition to this more excellent effect, what are the silicone products you never know. Silicone products are also known as silicone rubber, but silicone products belong to large categories, including silicone and inorganic silicon, and silicone and inorganic rubber products are also a type, including silicone, liquid glue, perforated silicone products, coarse-porous silicone products and fine-porous silicone products. Silicone rubber products belong to a common rubber key commodity in various manufacturing industries and belong to a raw material in silicone products-silicone-solid silicone products. Therefore, many spare parts of silicone products seen in the sales market are all produced and processed by purchasing silicone solid or liquid silicone rubber. Rubber sealing ring is a sealing product with good elasticity. Small stress in different media will produce large deformation. This deformation can provide contact pressure, compensate for leakage gap, and achieve the purpose of sealing. O-ring cold resistance Silicone products: ordinary rubber is delayed for -20 °-30 °, that is, silicone rubber still has good elasticity at -60 °-70 °, some specially formulated silicone rubbers can also withstand extremely low temperatures. The aging phenomena such as cracking, hardening, stickiness, pulverization and tear strength decrease caused by the silicone key rubber sealing ring under the condition of repeated deformation are called fatigue aging. The heat resistance of O-ring: silicone rubber has much better heat resistance than ordinary rubber. It can be used almost forever without performance change for several sealing rings at 150 degrees. It can be used continuously for 10000 hours at 200 degrees and for a period of time at 350 degrees, widely used in heat-resistant occasions, hot water bottle sealing ring, pressure pot ring heat-resistant hand liquid silicone handle, not only rubber sealing ring, in the actual use of rubber products also have a lot of fatigue aging, such as mobile phone accessories, shockproof rubber products and so on. Therefore, in the design of rubber sealing ring with excellent fatigue aging resistance, the design of formula and processing technology should be carried out from the rubber type, crosslinking agent and vulcanization system, filler, antioxidant type, processing technology, etc.

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The reason for the dark mark of silica gel is to judge whether it is of high quality.

The reason for the dark mark of silica gel is to judge whether it is of high quality.

2021-01-12 17:00:55

The dark marks of silicone products belong to a kind of poor appearance, which is manifested as two colors or messy ripples on the surface after molding, and the ripple distribution is disorderly, which will affect the overall appearance. Generally speaking, silicone products are related to production, but there are some small reasons worthy of attention. The temperature resistance of the color masterbatch is too poor, resulting in water ripples on the surface of silicone rubber products. The silicone raw materials of silicone products can be divided into ordinary silicone and meteorological silicone according to the performance of silicone keys. The cold resistance of O-ring: ordinary rubber is delayed by -20-30, that is, silicone rubber still has good elasticity at -60-70, and silicone rubber with some special formulations of sealing ring can also withstand extremely low temperatures. Widely used in occasions requiring heat resistance, hot water bottle sealing ring, pressure pot ring heat-resistant handle, rubber material prone to dark marks during molding, liquid silica gel is made of more than two kinds of color masterbatch. If the temperature resistance of several color masterbatches is too far apart, this will lead to some color masterbatches not changing color during high temperature molding, while some color masterbatches change color because the temperature resistance of the silica gel product factory is too poor, the phenomenon of water ripples on the surface of silicone rubber products after molding. What kind of silicone products are of high quality, and what standards or factors are there to judge whether a molded silicone key manufacturer is good. 1. Whether the burr of the self-unthreading of the product feels rough or not, the size of the clamping line determines the mold workmanship of the product, and the mold workmanship determines the overall effect of the product. The self-unthreading is very heavy. 2. The vulcanization effect of the product, the uneven hardness and softness of the product, the poor tensile rebound strength and the poor rebound effect are related to the problem of vulcanization time and raw materials of the manufacturer. 3. The color and smell of Yan rubber products and the uniformity of the color blending of silica gel products depend on the uniformity of the mixing process. The longer the time, the better the color saturation. 4. The silicone raw material is non-toxic and tasteless rubber keys. However, the raw material will have a little glue smell when adding vulcanizing agent and passing through the high-temperature oil pressure molding process of the silicone manufacturer. However, it will gradually disappear after secondary sulfur addition and long-term placement, so it is normal that there is no smell.

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