Weather-Resistant CPE Resin for Sports Shoe Midsole/Flame-Retardant Cable Sheathing

• Customization: Available
• CAS No.: 63231-66-3
• Formula: C2h3cl.C2h4
• Certification: REACH
• Environmental Protection: Yes
• Function: Flame Resistance, Heat Resistance
• Appearance: Powder
• Color: White
• Heat of Fusion J/G ≤: 2/2/2/2/2.5/1
• Chlorine Content%: 36±1/35±1/30±1/
• Shore Hardness: 60/65/65/60/75/70
• Tensile Strength MPa: 8/8/8/8.5/6/9
• Elongation at Break%: 700/600
• Mooney Viscosity Ml(1+4) 121ºC: -/70~80
• Volatile Matter%: 0.3/0.3/0.3/0.3/0.4/0.3
• Ash Content: 4.5
• Purity: 98%
• Flexural Modulus: 2100 MPa
• Yield Elongation: 5 %
• Thermal Expansion Coefficient: 7·10-5 mm/mm ºC
• Melt Mass Flow Rate (Mfr): 13.2 G/10 Min
• Transport Package: PP Bag
• Specification: 25kg/pkg
• Trademark: CSM rubber
• Origin: China
• HS Code: 3901909000
• Production Capacity: 300000 Ton/Year

Product Description

Product Overview

CPE resin is a thermoplastic elastomer made of chlorinated polyethylene. It has excellent weather resistance, chemical resistance and flame retardant, making it a popular material widely used in a variety of applications such as wire and cable insulation, automotive parts and roof coil. CPE resin is also known for its excellent impact strength and flexibility, making it an ideal material for use in products requiring durability and toughness. 

Product Parameters

 

ITEM	HT3000	HT6035	HT6135	HT140B	HT7130	HT6025M	HT3100	HT6535	HT352L
Heat of Fusion(J/gs)	1.5	1.5	1.5	1.5	2	60	1.5	1.5	1.5
Chlorine Content	35±1	35±1	35±1	40±1	30±1	25±1	35±1	35±1	35±1
Shore A hardness	60	60	60	60	70	90	60	60	57
Tensile Strength	6	6	6	6	8	-	6	6	8
Elongation at	600	600	600	500	800	-	600	600	700
Mooney Viscosity(ML 121ºC)	65~85	70~90	55~75	80~100	50~70	70~80	75~85	65~80	50~60
Volatile Matter(%)	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3
Ash Content	4.5	4.5	4.5	4.5	4.5	-	-	-	4.5
Main Applications	Wires and cables products ,rubber hoses ,foaming products and other rubber product.
Main properties	High strength ,high filing performance ,good processing performance,and excellent electrical insulation.

 

Uses

1. Waterproofing Membranes (Roofing, Basement Waterproofing)

• Product Description:
  Used for waterproofing layers in building roofs, basements, and bridges. Replaces traditional asphalt membranes, offering flexibility, aging resistance, and eco-friendliness.

• Formula:

  • Main Material: CPE (30%~35% chlorine content, e.g., CPE 135A) - 50%~60%.

  • Plasticizer: Chlorinated paraffin (10%~15%) for low-temperature crack resistance.

  • Fillers: Calcium carbonate (20%~30%) + carbon black (5%~8% for UV shielding).

  • Stabilizer: Epoxidized soybean oil (3%~5% to prevent thermal aging).

• Processing:

  1. Mixing: CPE pre-blended with plasticizers and fillers in an internal mixer (80~100°C, 10 minutes).

  2. Calendering: Formed via three-roll calender (140~160°C, thickness 1.5~2.0mm).

  3. Curing: Sulfur-free curing system (DCP 1.5% + TAIC 0.5%, 160°C × 8 minutes).

• Features:

  • Tensile strength ≥10MPa, elongation at break ≥300%.

  • No cracking at -30°C, 15~20-year lifespan.

  • Non-woven fabric reinforcement for puncture resistance.

 

2. Flame-Retardant Cable Sheathing (Household Appliances, Charger Cables)

• Product Description:
  Outer sheathing for phone charger cables and appliance power cords, featuring flame retardancy, oil resistance, and flexibility.

• Formula:

  • Main Material: CPE (40%~45% chlorine content, e.g., CPE 042B) - 60%~70%.

  • Flame Retardants: Aluminum hydroxide (20%~25%) + antimony trioxide (3%~5%).

  • Plasticizer: DOP (8%~10%).

  • Lubricant: Calcium stearate (1%~2%).

• Processing:

  1. Extrusion: Single-screw extruder (120~150°C to avoid decomposition).

  2. Curing: Peroxide curing (DCP 1.5%, 160°C × 10 minutes).

  3. Surface Coating: UV-resistant layer for weatherproofing.

• Features:

  • UL94 V-0 flame retardancy, self-extinguishing.

  • Oil resistance (ASTM D471: <10% volume change after 70°C × 24h).

  • Withstands 5,000+ bending cycles (e.g., Type-C cables).

 

3. Sports Shoe Midsole (Elastic Cushion Layer)

• Product Description:
  Replaces EVA in sports shoe midsoles, offering lightweight elasticity and minimal compression deformation.

• Formula:

  • Main Material: CPE (25%~30% chlorine content, e.g., CPE 250S) - 50%~60%.

  • Foaming Agent: AC foaming agent (3%~5%).

  • Crosslinker: DCP (1.5%).

  • Filler: Lightweight calcium carbonate (10%~15%).

• Processing:

  1. Foaming: Mold foaming (160~170°C, 10MPa pressure, 5 minutes).

  2. Cooling: Rapid cooling in water for shape retention.

• Features:

  • Density 0.15~0.25g/cm³, rebound rate ≥70%.

  • Akron abrasion <0.2cm³/1.61km (better than EVA).

  • UV resistance (ΔE <3 after 48h exposure).

 

4. Children's Toys (Soft Building Blocks, Bath Toys)

• Product Description:
  Non-toxic, soft, and durable toys compliant with EU EN71-3 safety standards.

• Formula:

  • Main Material: CPE (30%~35% chlorine content, e.g., CPE 3604) - 70%~80%.

  • Colorants: Eco-friendly inorganic pigments (5%~8%, e.g., titanium dioxide).

  • Lubricant: Polyethylene wax (1%~2%).

  • Antimicrobial Agent: Nano-silver particles (0.5%~1%).

• Processing:

  1. Injection Molding: Barrel temperature 150~170°C, mold temperature 40°C.

  2. Coating: UV-cured surface layer for stain resistance.

• Features:

  • Shore A hardness 60~70 (soft and safe).

  • Saliva-resistant (no deformation or leaching after 72h).

  • Boiling-water sterilizable (100°C).

 

5. Kitchen Anti-Slip Mats (Oil-Resistant, Easy Clean)

• Product Description:
  Anti-slip mats for kitchen sinks or stovetops, resistant to oil and easy to clean.

• Formula:

  • Main Material: CPE (35%~40% chlorine content, e.g., CPE 135C) - 60%~70%.

  • Plasticizer: DOA (10%~15%).

  • Anti-Slip Particles: Silicone beads (5%~8%).

  • Antimicrobial Agent: Silicone quaternary ammonium salt (1%~2%).

• Processing:

  1. Calendering: Mixed and rolled into sheets (3~5mm thickness).

  2. Cutting: Laser-cut into custom shapes (e.g., wave patterns for drainage).

• Features:

  • Friction coefficient ≥0.8 (anti-slip even when wet).

  • Resists cooking oil (no swelling after 72h).

  • Washable with dish soap, 3~5-year lifespan.

 

6. Automotive Wiper Blades (Weather-Resistant, Quiet)

• Product Description:
  Replaces rubber wiper blades, offering ozone resistance and silent operation.

• Formula:

  • Main Material: CPE (30%~35% chlorine content) - 50% + EPDM (30%).

  • Reinforcer: Silica (15%~20%).

  • Lubricant: Graphite powder (3%~5% for noise reduction).

• Processing:

  1. Extrusion: Cold-feed extruder (100~120°C).

  2. Curing: Microwave vulcanization for uniformity.

• Features:

  • Ozone-resistant (no cracks after 50pphm × 40°C × 96h).

  • Operating range -40°C~80°C, 2+ years of service.

 

7. Pet Toys (Chew Toys, Dental Sticks)

• Product Description:
  Durable, washable pet toys as alternatives to latex products.

• Formula:

  • Main Material: CPE (25%~30% chlorine content) - 70%~80%.

  • Flavor Enhancer: Chicken liver powder (5%~8%, food-grade).

  • Reinforcing Fiber: Wood pulp fiber (10%~15% for tear resistance).

• Processing:

  1. Injection Molding: Low-temperature process (130~150°C) to preserve flavor.

  2. Coating: Food-safe collagen coating.

• Features:

  • Tensile strength >8MPa, withstands 5,000+ bites.

  • Microwave-safe for disinfection (<60°C).

 

Advantage

1. Chemical Stability & Weather Resistance

Key Advantages:

• vs. PVC:

  • PVC Weakness: Prone to UV degradation, becoming brittle and yellowing over time.

  • CPE Advantage:

    • More uniform chlorine distribution in molecular chains, providing superior UV and ozone resistance (CPE waterproof membranes last 20+ years vs. PVC's 10-15 years).

    • Better acid/alkali resistance (e.g., withstands 50% sulfuric acid with 30%+ longer service life than PVC).

• vs. Rubber (EPDM, NBR):

  • Rubber Weakness: Natural rubber oxidizes easily; synthetic rubber (e.g., NBR) has poor ozone resistance.

  • CPE Advantage:

    • Rubber-like elasticity without vulcanization; ozone resistance (no cracking after 96h at 50pphm) surpasses EPDM.

    • Oil resistance (ASTM D471: <10% volume swelling at 70°C×24h) comparable to NBR but at lower cost.

2. Flame Retardancy & Safety

Key Benefits:

• Self-extinguishing:
  Adjustable chlorine content (25%~45%) releases HCl gas when burned, suppressing flames (UL94 V-0 achievable without excessive flame retardants).

• vs. Other Materials:

  • PE/PP: Require 30%~50% flame retardants (e.g., aluminum hydroxide), reducing mechanical strength.

  • TPE: Often needs halogenated additives, increasing cost and toxicity risks.

Data Support:

• CPE cable sheathing: Oxygen Index (OI) 28%~32% vs. PE's 17%~19%.

• Smoke density (NBS test): CPE (150-200) vs. PVC (400-600) - lower = safer.

3. Processing Flexibility & Formulation Adaptability

Key Advantages:

• Wide Processing Window:
  Melting range: 160-200°C; suitable for extrusion, calendering, injection molding (no scorching risk vs. rubber's strict vulcanization control).

• Compatibility:

  • Blends well with PVC, ABS, and fillers (e.g., 50%+ calcium carbonate for cost reduction).

  • Easily modified with plasticizers (DOP, DOA) or elastomers (EPDM, POE).

vs. Other Materials:

• TPU: High processing temps (180-220°C), moisture-sensitive.

• Silicone Rubber: Requires secondary vulcanization, longer cycles.

4. Environmental Compliance & Recyclability

Key Benefits:

• Phthalate-Free Formulations:
  Inherent flexibility reduces/eliminates need for restricted plasticizers (REACH/RoHS compliant).

• Recyclability:
  Retains >80% tensile strength after recycling (vs. PVC's 50-60%).

vs. Competitors:

• PVC: Chlorine + phthalates risk dioxin emissions when incinerated.

• TPE: Some contain halogens/heavy metals, limiting electronics use.

5. Mechanical Performance & Functional Balance

Key Strengths:

• Elasticity + Abrasion Resistance:
  Compression set (70°C×22h) <40% (vs. EVA's >60%), ideal for shoe midsoles.

• Low-Temperature Flexibility:
  Remains pliable at -40°C (PVC brittles at -10°C); no extra plasticizers needed vs. EPDM.

6. Cost Efficiency

Economic Advantages:

• Material Cost:
  Priced between PVC and rubber (~$2,000-2,800/ton), yet replaces pricier options:

  • 30-40% cheaper than EPDM (e.g., automotive seals).

  • 50-60% cheaper than silicone rubber (e.g., high-temperature gaskets).

• Processing Savings:

  • No vulcanization equipment (20%+ energy savings vs. rubber).

  • High filler loading (e.g., 30% CaCO₃ in waterproofing) cuts costs further.

7. Customization Potential

Specialized Applications:

• Conductive/Antistatic:
  Add carbon black/metal powders for surface resistivity 10³-10⁶Ω (e.g., mining conveyor belts).

• Antimicrobial:
  Nano-silver/zinc modifications achieve >99.9% bacterial inhibition (toys/medical tubes).

• Optical Clarity:
  Low-chlorine CPE (25-30%) offers 80-85% light transmission (alternative to soft PVC films).

Detailed Photos

 

Company Profile

Weifang Phoenix New Material Co., Ltd

 

                       Weifang Phoenix New Material Co., Ltd is a high-tech chemical enterprise integrating research and development,

                   production, sales and technical services. Headquartered in Weifang, Shandong Province. Its production facilities are

                                        ocated in Weifang Binhai Chemical Industry Park, a state-approved chemical industry park.
 

                        Our mission is to be the leading sustainable "one-stop shop" chemical solutions company, providing customers

                     with innovative, science-led, differentiated products and solutions. To this end, we provide a safe and healthy working

                                  environment for our employees and comply with all local, national and international regulations.

 

FAQ

1.Q:How's the quality?
A:We are the source factory, quality is guaranteed.

2.Q:When does it ship?
A:We have standardized processes to ship as fast as possible.

3.Q:How do you protect the after-sales?
A:We keep samples of each batch and support returns and technical traceability in case of quality problems.