Through continuous innovation, SUNPLAS breaks the long-term monopoly of multinational companies in technology and product areas, and develops a series of new high-quality elastomers, such as dynamic thermoplastic vulcanizate, etc.

Our company is the Key Technical Innovation Project, state-level Torch Program projects industrial base, provincial and municipal high-tech enterprises supported by Sichuan, In 2011, our chairman was named “outstanding builders of socialism with Chinese characteristics” by National United Front Work Department and other five ministries. Our company has gained ISO9001: 2008 quality management system certification.

As plastic raw material suppliers, clients’ success is our greatest desire. We will continue to develop new products to meet changing market needs, create value for customers, while continuing to strive to improve ourselves.

Thermoplastic vulcanizate(TPV)is a kind of blending thermoplastic elastomer material. It is prepared by dynamic vulcanization technology, which melt thermoplastic resin and rubber firstly, and then add the cross-linking agent. Because of the strong mechanical shearing and the chemical cross-linking by crosslinking agent, the rubber phase is cut into a large number of micron-scale cross-linked rubber particles dispersed in the thermoplastic resin matrix in the continuous phase thermoplastic resin matrix. Therefore, the structural of TPV is different with the thermoplastic elastomer prepared by polymer synthesis (such as styrene block copolymer TPE), it has a special sea - island phase structure. Its structure is shown in Figure 1 and Figure 2. The structure of TPV has the following characteristics: (1) The diameter of rubber particles is 1 ~ 2 μm; the crosslinking density of rubber particles is greater than 7 × 10-5 mol/mL; the particles inside contain filling and reinforcing agent, plasticizer and other additives. The large number of small crosslinked rubber particles was dispersed, and there should be no chemical bonding between the particles, makeing TPV with an excellent high flexibility. (2) A small amount of plastic coated with crosslinked rubber particles to form a continuous phase, resulting in TPV with excellent thermoplastic fluidity and repeated processability.

Advantages: In wide temperature range, TPV has excellent compression and compression stress relaxation, excellent anti-aging properties and good chemical resistance, short extrusion time, light weight, and has the characteristics of 100% renewable. Products can be translucent, the color of material qualities, easy to dye and so on.

1、Translucent grades of TPV

Physical properties Test methods Unit 9500 8500 7500 6500 5500 4500
Hardness GB/T531.1-2008 Shore A 95  85 75 65 55 45
Density GB/T1033.1-2008 g/cm3 0.89 0.89 0.89 0.89 0.89 0.89 
Tensile strength GB/T528-2009 MPa 18 14 10 7.5 57.5 4
Elongation at break GB/T528-2009 % 600 600 550 550 550 600
Tear strength GB/529-2008 KN/m 80 74 62 60 55 48
Brittle temperature GB/T1682-1994 <-60 <-60 <-60 <-60 <-60 <-60

Note:The company grades and nature color of the corresponding TPV as a test basis, the above data are typical. Our company can produce special colors and grades of products according to customer requirements. Product quality is supervised by the National Force Structure Plastics Engineering Technology Research Center.
 

2、 Environment friendly fire-class of TPV(It contain halogen,and has ROHS certification)

Physical properties Test methods Unit FR2095 FR2085 FR2075 FR2065  FR2055
Hardness GB/T531.1-2008 Shore A 95  85 75 65 55
Density GB/T1033.1-2008 g/cm3 1.06 1.06 1.06 1.07 1.07
Tensile strength GB/T528-2009 MPa 14 10 8 6.5  5
Elongation at break GB/T528-2009 % 450 450 450 450 450
Tear strength GB/529-2008 KN/m 63 53 50 47 45
Brittle temperature GB/T1682-1994 <-60 <-60 <-60 <-60 <-60

3、 Low smoke halogen-free fire-class of TPV

Physical properties Test methods Unit FR3095 FR3090 FR3085
Hardness GB/T531.1-2008 Shore A 95  90 85
Density GB/T1033.1-2008 g/cm3 1.06 1.06 1.06
Tensile strength GB/T528-2009 MPa 7.5 6.4 6
Elongation at break GB/T528-2009 % 380 380 400
Tear strength GB/529-2008 KN/m 62 58 53
Brittle temperature GB/T1682-1994 <-60 <-60 <-60
垂直燃烧 UL94 V-0 V-0 V-0

4、 Pesticide-resistant grades of TPV
The series is mainly designed for agricultural machinery, pesticide resistance with excellent performance.
 

Physical properties Test methods Unit 9003/9004 8003 7003
Hardness GB/T531.1-2008 Shore A 90 80 70
Density GB/T1033.1-2008 g/cm3 0.96 0.96 0.96
Tensile strength GB/T528-2009 MPa 10 8.5 7.5
Elongation at break GB/T528-2009 % 550 550 550
Tear strength GB/529-2008 KN/m 80 60 55
Brittle temperature GB/T1682-1994 <-60 <-60 <-60

5、 Scratch-resistant grades of TPV
The series uses a special means to enhance the ability of surface scratch resistant. It is mainly used for parts required flexibility but requires scratch-resistant areas, such as car mirrors, triangular windows, etc.
 

Physical properties Test methods Unit 9008 8508 7508
Hardness GB/T531.1-2008 Shore A 90 85 70
Density GB/T1033.1-2008 g/cm3 0.89 0.89 0.89
Tensile strength GB/T528-2009 MPa 10 8.5 7.5
Elongation at break GB/T528-2009 % 550 550 550
Tear strength GB/529-2008 KN/m 80 70 55
Brittle temperature GB/T1682-1994 <-60 <-60 <-60

6、. High resilience grades of TPV.
Features: The series products with higher resilience and other mechanical properties, and excellent oil resistance and other chemical properties.
Disadvantages: Because of different curing systems, the series can’t do the white material, which is mainly available in black material.
 

Physical properties Test methods Unit 1095 1087 1080 1073 1064 1055
Hardness GB/T531.1-2008 Shore A 95  87 80 75 64 55
Density GB/T1033.1-2008 g/cm3 0.95 0.96 0.96 0.97 0.97 0.97
Tensile strength GB/T528-2009 MPa 20 15 10 8 6.5 4.5
Elongation at break GB/T528-2009 % 600 550 500 450 400 350
Tear strength GB/529-2008 KN/m 65 50 35 25 20 15
Brittle temperature GB/T1682-1994 <-50 <-50 <-60 <-60 <-60 <-60

Honest man, practical work is our code of conduct. To be the most customer trust plastic raw materials manufacturers and suppliers is our goal. We are ready to work with you to success.

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Add: Mazuzhen Town, Shifang City, Sichuan P.C:618407 TEL:(86) 838-8503888

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