plastic rubber additives

Acetyl Tributyl Citrate (ATBC)

CAS: 77-90-7

Acetyl Tributyl Citrate (ATBC) is a citrate ester plasticizer recognized as one of the safest non-phthalate options available, with broad FDA and EU approvals for food-contact and medical applications. It delivers excellent low-temperature flexibility and low volatility, making it ideal for flexible packaging and sensitive consumer goods. ATBC is fully biodegradable and compatible with PVC and biopolymers.

plastic rubber additives

Acrylic Impact Modifier

Acrylic Impact Modifiers based on core-shell architecture provide outstanding toughening performance for rigid PVC without sacrificing weatherability or clarity. The rubbery acrylic core absorbs impact energy while the hard shell ensures compatibility and dispersion within the PVC matrix. They are the preferred choice for outdoor applications where UV resistance is a priority.

plastic rubber additives

Acrylic Processing Aid

Acrylic Processing Aid is a high-molecular-weight polymethyl methacrylate-based additive that significantly improves the fusion, melt strength, and processing behavior of rigid PVC compounds. It accelerates gelation and homogenizes the melt, resulting in improved surface gloss, dimensional stability, and reduced melt fracture. Used at 1–3 phr, it is essential for high-output extrusion, calendering, and injection molding of rigid PVC.

plastic rubber additives

Anti-Blocking Agent

CAS: 7631-86-9

Anti-blocking agents are fine inorganic or organic particulate additives incorporated into plastic films to prevent adjacent film layers from sticking together during winding, storage, and processing. They work by creating microscopic surface roughness that reduces the contact area between film surfaces. Common types include amorphous silica, talc, kaolin, and synthetic silica.

plastic rubber additives

Antioxidant 1076 (Irganox 1076)

CAS: 2082-79-3

Antioxidant 1076 is a hindered phenolic primary antioxidant (octadecyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate) providing excellent long-term thermal oxidative stability for polyolefins, styrenics, and engineering polymers. It is particularly effective in applications requiring food-contact compliance and low volatility during high-temperature processing. Antioxidant 1076 is often combined with phosphite co-antioxidants for synergistic protection.

plastic rubber additives

Antioxidant 168 (Phosphite Co-Antioxidant)

CAS: 31570-04-4

Antioxidant 168 (tris(2,4-di-tert-butylphenyl)phosphite) is a high-performance phosphite processing stabilizer that hydroperoxide decomposer, preventing discoloration and degradation of polyolefins and engineering polymers during melt processing. It works synergistically with hindered phenolic antioxidants to provide comprehensive protection against thermal and oxidative degradation. Antioxidant 168 is one of the most widely used co-antioxidants in the plastics industry.

plastic rubber additives

Antistatic Agent for Plastics

CAS: 4292-10-8

Antistatic agents for plastics are surface-active additives that dissipate static electricity build-up on plastic surfaces by forming a thin, hygroscopic layer that conducts charge away. They are classified as internal (compounded into the resin) or external (applied to the surface). Internal types such as glycerol monostearate and ethoxylated amines migrate continuously to the surface, providing durable antistatic protection.

plastic rubber additives

Azodicarbonamide (ADC) Foaming Agent

CAS: 123-77-3

Azodicarbonamide (ADC), commonly known as AC blowing agent, is the most widely used chemical foaming agent in the plastics and rubber industry. It decomposes at 195–210°C to release nitrogen, carbon dioxide, and carbon monoxide gases, creating a uniform closed-cell foam structure. Activators such as zinc oxide can lower the decomposition temperature to 150–160°C for use in lower-temperature polymers.

plastic rubber additives

Barium Zinc Stabilizer

Barium Zinc Stabilizer is a liquid or powder PVC heat stabilizer offering outstanding long-term thermal stability, excellent initial whiteness, and superior processing performance. It is commonly used in flexible PVC applications where a balance of cost-effectiveness and performance is required. Ba-Zn systems are valued for their lubricity, compatibility with various plasticizers, and good color stability during extended processing.

plastic rubber additives

CPE Impact Modifier (Chlorinated Polyethylene)

CAS: 68442-33-1

Chlorinated Polyethylene (CPE) Impact Modifier is a cost-effective elastomeric toughener for rigid PVC, particularly used in pipe, fittings, and profiles requiring good chemical and weather resistance. CPE-135A grade with 35% chlorine content is the standard modifier for rigid PVC, providing excellent low-temperature impact strength and oil resistance. It is widely used in both rigid and flexible PVC applications.

plastic rubber additives

Calcium Stearate

CAS: 1592-23-0

Calcium Stearate is a versatile metallic soap used as an internal and external lubricant, acid scavenger, and release agent in PVC and polyolefin processing. In PVC formulations it acts as a co-stabilizer alongside zinc stearate, helping to prevent early discoloration by neutralizing HCl. It also improves mold release and reduces friction between polymer chains during extrusion and calendering.

plastic rubber additives

Calcium Zinc Stabilizer

Calcium Zinc Stabilizer is a heavy-metal-free PVC heat stabilizer system combining calcium and zinc salts with co-stabilizers and lubricants, offering an environmentally safe alternative to lead and cadmium-based systems. It provides excellent long-term thermal stability and good initial coloring performance for rigid and flexible PVC formulations. Ca-Zn stabilizers are widely used in food-contact, medical, and children's product applications.

plastic rubber additives

Chloroprene Rubber (CR) Additive Package

Chloroprene Rubber Additive Packages are tailored combinations of vulcanizing agents, accelerators, antioxidants, and processing aids specifically formulated for CR (neoprene) compounds. Typical systems include magnesium oxide and zinc oxide as acid acceptors and crosslinkers, combined with thiourea or ETU accelerators. These packages ensure optimal vulcanization, heat resistance, and chemical resistance of CR compounds.

plastic rubber additives

Dicumyl Peroxide (DCP) Cross-linking Agent

CAS: 80-43-3

Dicumyl peroxide (DCP) is a di-functional organic peroxide widely used as a cross-linking agent for polyethylene (XLPE), silicone rubber, EPDM, EVA, and natural rubber. Upon thermal decomposition at 120–180°C, it generates free radicals that create covalent C-C cross-links between polymer chains, significantly improving heat resistance, mechanical strength, and chemical resistance.

plastic rubber additives

Diisononyl Phthalate (DINP)

CAS: 28553-12-0

Diisononyl Phthalate (DINP) is a high-molecular-weight phthalate plasticizer offering superior permanence and low volatility compared to DOP. It is widely used in applications requiring long-term flexibility retention and reduced migration. DINP meets stringent regulatory requirements for many consumer and industrial PVC applications.

plastic rubber additives

Dioctyl Phthalate (DOP)

CAS: 117-81-7

Dioctyl Phthalate (DOP) is a general-purpose primary plasticizer widely used in PVC processing to impart flexibility, durability, and low-temperature performance. It offers excellent compatibility with PVC resin and provides a good balance of electrical insulation and mechanical properties. DOP is the benchmark plasticizer for flexible PVC applications worldwide.

plastic rubber additives

Dioctyl Terephthalate (DOTP)

CAS: 6422-86-2

Dioctyl Terephthalate (DOTP) is a non-phthalate plasticizer derived from terephthalic acid, offering an environmentally friendly alternative to traditional phthalate plasticizers. It provides excellent heat stability, low volatility, and outstanding electrical properties. DOTP is increasingly preferred for applications subject to regulatory restrictions on conventional phthalates.

plastic rubber additives

Epoxidized Soybean Oil (ESBO)

CAS: 8013-07-8

Epoxidized Soybean Oil (ESBO) is a bio-derived secondary plasticizer and PVC heat stabilizer that functions synergistically with calcium-zinc and barium-zinc stabilizer systems. It effectively scavenges hydrogen chloride released during PVC degradation, prolonging thermal stability and extending service life. ESBO is widely accepted in food-contact PVC applications including gaskets and closure liners.

plastic rubber additives

Fluoroelastomer Processing Aid

Fluoroelastomer Processing Aids are fluoropolymer-based additives that eliminate melt fracture and sharkskin defects in polyolefin film and pipe extrusion by providing dynamic lubrication at the die wall interface. Used at very low loadings (50–1000 ppm), they dramatically improve extrudate surface quality, allow higher output rates, and reduce die pressure. They are particularly valuable for LLDPE, HDPE, and metallocene polyethylene processing.

plastic rubber additives

HALS 622 (Hindered Amine Light Stabilizer)

CAS: 65447-77-0

HALS 622 (poly[(6-morpholino-s-triazin-2,4-diyl)[2,2,6,6-tetramethyl-4-piperidyl)imino]hexamethylene]) is a high-molecular-weight oligomeric HALS providing outstanding long-term light stabilization for polyolefins, polyurethanes, and other polymers exposed to outdoor environments. Its low volatility and excellent permanence make it the preferred light stabilizer for thick-section agricultural film, geomembranes, and automotive parts. HALS 622 is effective even in the presence of acid-generating flame retardants.

plastic rubber additives

MBS Impact Modifier (Methyl Methacrylate-Butadiene-Styrene)

CAS: 25053-09-2

MBS Impact Modifier is a core-shell terpolymer based on a polybutadiene rubber core with a methyl methacrylate-styrene shell, providing excellent toughening for transparent PVC applications. Its refractive index is closely matched to PVC, making it ideal for clear rigid PVC bottles, thermoformed sheets, and blister packaging where both toughness and optical clarity are required. MBS is not suitable for outdoor UV-exposed applications.

plastic rubber additives

Nucleating Agent

CAS: 85209-91-2

Nucleating agents are additives that increase the rate of crystallization in semi-crystalline polymers such as polypropylene and polyethylene by providing heterogeneous nucleation sites. This results in smaller, more uniform crystal structures that improve stiffness, clarity, heat distortion temperature, and dimensional stability. Organic sorbitol-based clarifiers also serve as transparency-enhancing nucleating agents.

plastic rubber additives

Optical Brightening Agent (OBA)

CAS: 4404-43-7

Optical brightening agents (OBAs) are fluorescent dyes that absorb ultraviolet light and re-emit it as visible blue light, compensating for the yellowish tint of plastics and making them appear whiter and brighter. They are widely used in polyolefins, PVC, ABS, and engineering plastics. OBAs for plastics must be thermally stable at processing temperatures typically above 200°C.

plastic rubber additives

Organic Phosphite PVC Co-Stabilizer

CAS: 31570-04-4

Organic Phosphite Co-Stabilizers are essential components in PVC stabilizer packages, functioning as hydroperoxide decomposers and HCl scavengers to extend thermal stability. They work synergistically with metal soap stabilizers, improving color retention during processing and long-term weathering. Commonly used phosphites include diphenyl isodecyl phosphite and trisnonylphenyl phosphite.