Silicone leather is a synthetic leather product that looks and feels like leather and can be used instead of leather. It is usually made of fabric as the base and coated with silicone polymer. There are mainly two types: silicone resin synthetic leather and silicone rubber synthetic leather. Silicone leather has the advantages of no odor, hydrolysis resistance, weather resistance, environmental protection, easy cleaning, high and low temperature resistance, acid, alkali and salt resistance, light resistance, heat aging resistance, yellowing resistance, bending resistance, disinfection, and strong color fastness. It can be used in outdoor furniture, yachts and ships, soft package decoration, car interior, public facilities, sports equipment, medical equipment and other fields.
1. The structure is divided into three layers:
Silicone polymer touch layer
Silicone polymer functional layer
Substrate layer
Our company independently developed a two-coating and baking short process automatic production line, and adopted an automated feeding system, which is efficient and automatic. It can produce silicone rubber synthetic leather products of various styles and uses. The production process does not use organic solvents, and there is no wastewater and exhaust gas emission, realizing green and intelligent manufacturing. The Scientific and Technological Achievement Appraisal Committee organized by the China Light Industry Federation believes that the "High-performance Special Silicone Rubber Synthetic Leather Green Manufacturing Technology" developed by our company has reached the international leading level.
2. Performance
Stain resistance AATCC 130-2015——Class 4.5
Color fastness (dry rub/wet rub) AATCC 8——Class 5
Hydrolysis resistance ASTM D3690-02 SECT.6.11——6 months
ISO 1419 Method C——6 months
Acid, alkali and salt resistance AATCC 130-2015——Class 4.5
Light fastness AATCC 16——1200h, Class 4.5
Volatile organic compound TVOC ISO 12219-4:2013——Ultra low TVOC
Aging resistance ISO 1419——Class 5
Perspiration resistance AATCC 15——Class5
UV resistance ASTM D4329-05——1000+h
Flame retardancy BS 5852 PT 0---Crib 5
ASTM E84 (Adhered)
NFPA 260---Class 1
CA TB 117-2013---Pass
Abrasion resistance Taber CS-10---1,000 double Rubs
Martindale Abrasion---20,000 cycles
Multiple stimulation ISO 10993-10:2010---Class 0
Cytotoxicity ISO 10993-5-2009---Class 1
Sensitization ISO 10993-10:2010---Class 0
Flexibility ASTM D2097-91(23℃)---200,000
ISO 17694(-30℃)---200,000
Yellowing resistance HG/T 3689-2014 A method,6h---Class 4-5
Cold resistance CFFA-6A---5# roller
Mold resistance QB/T 4341-2012---Class 0
ASTM D 4576-2008---Class 0
3. Application areas
Mainly used in soft package interiors, sports goods, car seats and car interiors, child safety seats, shoes, bags and fashion accessories, medical, sanitation, ships and yachts and other public transportation places, outdoor equipment, etc.
4. Classification
Silicone leather can be divided into silicone rubber synthetic leather and silicone resin synthetic leather according to raw materials.
| Compare Projects | Silicone rubber | Silicone resin |
| Raw materials | Silicone oil, white carbon black | Organosiloxane |
| Synthesis process | The synthesis process of silicone oil is bulk polymerization, which does not use any organic solvents or water as a production resource. The synthesis time is short, the process is simple, and continuous production can be used. The product quality is stable | Siloxane is hydrolyzed and condensed into a network product under the catalytic conditions of water, organic solvent, acid or base. The hydrolysis process is long and difficult to control. The quality of different batches varies greatly. After the reaction is completed, activated carbon and large amounts of water are required for cleaning. The product production cycle is long, the yield is low, and water resources are wasted. In addition, the organic solvent in the finished product cannot be completely removed. |
| Texture | Gentle, the hardness range is 0-80A and can be adjusted at will | The plastic feels heavy, and the hardness is often greater than 70A. |
| Touch | As delicate as baby skin | It is relatively rough and makes a rustling sound when sliding. |
| Hydrolysis resistance | No hydrolysis, because silicone rubber materials are hydrophobic materials and do not produce any chemical reaction with water | Hydrolysis resistance is 14 days. Because silicone resin is a hydrolysis condensation product of organic siloxane, it is easy to undergo a reverse chain scission reaction when encountering acidic and alkaline water. The stronger the acidity and alkalinity, the faster the hydrolysis rate. |
| Mechanical properties | Tensile strength can reach 10MPa, tear strength can reach 40kN/m | The maximum tensile strength is 60MPa, the highest tear strength is 20kN/m |
| Breathability | The gaps between molecular chains are large, breathable, oxygen permeable, and permeable，High moisture resistance | Small intermolecular gap, high crosslinking density, poor air permeability, oxygen permeability, and moisture permeability |
| Heat resistance | Can withstand -60℃-250℃, and the surface will not change | Hot sticky and cold brittle |
| Vulcanization properties | Good film-forming performance, fast curing speed, low energy consumption, convenient construction, strong adhesion to the base | Poor film-forming performance, including high curing temperature and long time, inconvenient large-area construction, and poor adhesion of the coating to the substrate |
| Halogen content | No halogen elements exist at the source of the material | Siloxane is obtained by alcoholysis of chlorosilane, and the chlorine content in silicone resin finished products is generally greater than 300PPM |
| Item | Definition | Features |
| Genuine leather | Mainly cowhide, which is divided into yellow cowhide and buffalo hide, and the surface coating components are mainly acrylic resin and polyurethane | Breathable, comfortable to the touch, strong toughness, strong odor, easy to change color, difficult to care, easy to hydrolyze |
| PVC leather | The base layer is various fabrics, mainly nylon and polyester, and the surface coating components are mainly polyvinyl chloride. | Easy to process, wear-resistant, cheap; Poor air permeability, easy to age, harden at low temperature and produce cracks, the use of plasticizers in Dali harms the human body and causes serious pollution and strong odor |
| PU leather | The base layer is various fabrics, mainly nylon and polyester, and the surface coating components are mainly polyurethane. | Comfortable to the touch, wide range of applications; Not wear-resistant, almost airtight, easy to be hydrolyzed, easy to delaminate, easy to crack at high and low temperatures, and the production process pollutes the environment |
| Microfiber leather | The base is microfiber, and the surface coating components are mainly polyurethane and acrylic resin. | Good feel, acid and alkali resistance, good shaping, good folding fastness; Not wear-resistant and easy to break |
| Silicone leather | The base can be customized according to customer needs, and the surface coating component is 100% silicone polymer. | Environmental protection, weather resistance, acid and alkali resistance, hydrolysis resistance, easy to clean, high and low temperature resistance, no odor; High price, stain resistance and easy to handle |
Post time: Sep-12-2024