CN101638499A - Environment-friendly polyvinyl chloride cable sheathing compound - Google Patents

Abstract

The invention relates to an environment-friendly polyvinyl chloride cable sheathing compound mainly comprising the following materials in parts by weight: 40-45parts of polyvinyl chloride resin, 5-7parts of trioctyl trimellitate, 4-6 parts of dioctyl sebacate, 8-10parts of acetyl tributyl citrate, 5-7 parts of DX-360, 4-6parts of Ca-Zn composite stabilizing agent, 1-1.5 parts of epoxidized soybeanoil, 1-1.5 pats of diantimony trioxide, 10-30 parts of magnesium hydroxide and 10-13parts of fine calcium carbonate. The environment-friendly polyvinyl chloride cable sheathing compound technically satisfies European Union ROHS and REACH index requirements, resists ultraviolet irradiation, and the like, increases stability and anti-moisture absorption, prolongs a storage period and has high practicability, wide development prospect and large market potential. The environment-friendly polyvinyl chloride cable sheathing compound is successfully developed to supply raw material guarantee for designing and selecting an environment-friendly cable product which can simultaneously satisfy the European Union ROHS and REACH requirements, promotes the stable sustainable development of linked industries and conforms the development direction of products of new and high technologies of China.

Description

Environment-friendly polyvinyl chloride cable sheathing compound

(1) technical field

The present invention relates to the electric wire manufacture field, specifically, the present invention is a kind of environment-friendly polyvinyl chloride cable sheathing compound.

(2) background technology

Along with people to polluting going deep into of understanding, the electronic apparatus ROHS of European Union instruction (2002/95/EC number instruction of European Union) is to lead, mercury, cadmium, sexavalent chrome, Polybrominated biphenyl (PBB), six kinds of objectionable impuritiess propositions of Poly Brominated Diphenyl Ethers (PBDE) requirement for restriction.Wherein, the content≤100ppm of cadmium, the content≤1000ppm of lead, mercury, sexavalent chrome, Polybrominated biphenyl (PBB), Poly Brominated Diphenyl Ethers (PBDE).For the cable pvc material, general sexavalent chrome is present in the colour batch, lead generally exists in a large number as thermal stabilization additive, and silver, cadmium may exist among all kinds of metal materials of cable, and PBB, the PBDE then fire retardant of possibility conduct are used for cable sheath.

Along with science and technology development, novel substance and novel material constantly occur, and people improve day by day for the degree of attentiveness of chemical to healthy and environment potential impact.In order to realize chemical industry STRATEGIES OF SUSTAINABLE DEVELOPMENT target, new REACH rules motion has been proposed.Promulgation in European Union on June 18th, 2008 first version REACH is high to pay close attention to the material tabulation, and materials such as the phthalic acid dibutyl ester that wherein comprises, phthalic acid two (2-ethylhexyl), butyl benzyl phthalate all are used for the polyvinyl chloride cable sheath in a large number as softening agent etc.Confirmed that now phthalic acid salt pair liver, kidney and reproductive system cause negative impact, carcinogenic in addition simultaneously, teratogenesis and cause endocrine disturbance, the impaired potentially dangerous of neural system.The whole world annual phthalic acid salt softening agent consumption is at more than 300 ten thousand tons, wherein have about 1% to flow into nature by all means, at present in nearly all ocean, the whole world, atmosphere, tap water, animals and plants and newborn baby's body, all can detect phthalic acid salt softening agent to some extent, form relatively serious environmental pollution.

Based on advanced technical qualification and environmental protection concepts such as America and Europes, be on the forefront aspect the Application and Development of environmental protection polyvinyl chloride.As internationally renowned brands such as AphaGary, Pu Liwan, Du Pont, Basf, Bayer, developed polyvinyl chloride cable sheathing compound and all can satisfy ROHS instruction and REACH command request simultaneously.And become the affiliate of companies such as concentric cable famous brand name Beldon, CommScope.Lead the trend of world's environmental protection polyvinyl chloride technical development, occupy monopoly position.

At home, because the acceptance level in the hysteresis of laws and regulations and market is different, the development of environment protection PVC power cable sheath material is relative slow with application.Have only minority producer to declare to produce the environment protection PVC power cable sheath material, and raw material can only rely on import.Guarantee because the backwardness of formula technique and the shortage of means of testing, quality product lack, and environmental protection index mostly rests on unleaded and satisfies the level of ROHS index request.Also only limit to research and development in the document of open report to the environment protection PVC power cable material that satisfies the ROHS index.The report that satisfies the environment protection PVC power cable sheath material of the ROHS of European Union instruction and REACH command request does not simultaneously almost have.My company is by investigation, sampling test analysis, and the obtainable environment protection PVC power cable sheath material of domestic institute is actually and can not satisfies simultaneously that the ROHS of European Union instructs and the REACH command request.

At the deficiency of existing environment protection PVC power cable sheath material, develop a kind of environment protection PVC power cable sheath material that satisfies ROHS of European Union and REACH command request novel the time.

(3) summary of the invention

The present invention has overcome above-mentioned shortcoming, has proposed a kind of environment-friendly polyvinyl chloride cable sheathing compound, and the environmental-protecting performance excellence can satisfy ROHS of European Union and REACH command request simultaneously.

For achieving the above object, the present invention is by the following technical solutions:

A kind of environment-friendly polyvinyl chloride cable sheathing compound mainly is prepared from by following substances in parts by weight:

Polyvinyl chloride (PVC) RESINS 40-45 part

Trioctyl trimellitate 5-7 part

Dioctyl sebacate 4-6 part

Tributyl acetylcitrate 8-10 part

DX-360 5-7 part

Calcium-zinc composite stabilizing agent 4-6 part

Epoxy soybean oil 1-1.5 part

Antimonous oxide 1-1.5 part

Magnesium hydroxide 10-13 part

Meticulous lime carbonate 10-13 part.

DX-360 is non-, and adjacent phenyl ring is protected non-toxic plasticizer, it is the best non-adjacent benzene non-toxic plasticizer of domestic present plasticising performance, odorlessness, overcome the shortcoming that citrate easily oozes out, intermiscibility excellence (100 parts of PVC can add part DX-360 more than 120 at most), the plasticising performance is equal to DOP, and anti-migration is oozed out above DOP, and smog is than using DOP to significantly reduce in the course of processing.

Further, described environment-friendly polyvinyl chloride cable sheathing compound mainly is prepared from by following substances in parts by weight:

42 parts of polyvinyl chloride (PVC) RESINS

7 parts of trioctyl trimellitates

6 parts of dioctyl sebacates

9 parts of tributyl acetylcitrates

6 parts of DX-360

5 parts of calcium-zinc composite stabilizing agents

1.5 parts of epoxy soybean oils

1.5 parts of antimonous oxides

12 parts of magnesium hydroxides

10 parts in meticulous lime carbonate.

Contriver's recommendation realizes sheath material performance judgement of the present invention from following aspect:

(1) You Yi environmental-protecting performance:

Material selection has taken into full account the requirement of ROHS and REACH environmental protection index in the cable jacket material formulating of recipe:

Trioctyl trimellitate, dioctyl sebacate and tributyl acetylcitrate and DX-360 are universally acknowledged environment-friendly plasticizers, and plasticization effect and plasticizer DOP are suitable, and can give goods good performance such as fast light, heat-resisting, ageing-resistant;

Calcium zinc stable composition system is the optimal stablizer of present environment-friendly polyvinyl chloride CABLE MATERIALS;

Epoxy soybean oil plays softening agent and auxiliary stabilizer in pvc, particularly be used with calcium-zinc composite stabilizing agent, can effectively improve thermostability;

Other system component all adopt the asepsis environment-protecting auxiliary agent.

CABLE MATERIALS meets the command request of electronic apparatus ROHS of European Union and REACH fully through the test of Shanghai SGS inspection center.

(2) You Yi resistance to water soak and stability:

Though calcium zinc stable composition system is the optimal stablizer of present environment-friendly polyvinyl chloride CABLE MATERIALS.But, be that stablizer is compared with the original lead salt of polyvinyl chloride, have bigger water absorbability.Adopt the epoxy soybean oil of non-moisture absorption can play the effect of auxiliary stabilizer, particularly be used, can effectively improve thermostability with calcium-zinc composite stabilizing agent.Thereby can when guaranteeing stability of material, lower the deal of calcium-zinc composite stabilizing agent;

Meticulous lime carbonate thermo-stabilizer is better, and particle diameter is little, and is better dispersed during batch mixing, thereby improves raisings such as physicals, thermal stability.

Beneficial effect of the present invention mainly shows: 1, solved the environmental protection polyvinyl chloride sheath material technically and satisfied performance requriementss such as ROHS of European Union and the anti-uv irradiating of REACH index request simultaneously, and the stability and the resistance to water soak of this product have been improved, prolonged this product resting period, practical, have vast potential for future development, market potential is very big; 2, the successful exploitation of this product, selecting for use for the design of satisfying the environment-friendly cable product that ROHS of European Union and REACH require simultaneously provides the raw material assurance, promotes the stable Sustainable development of related industry, meets national new high-tech product developing direction.

(4) embodiment

The invention will be further described below in conjunction with embodiment, but protection scope of the present invention is not limited to this.

A kind of environment-friendly polyvinyl chloride cable sheathing compound, described sheath material mainly is prepared from by following substances in parts by weight:

(1) polyvinyl chloride (PVC) RESINS is 420 kilograms

(2) trioctyl trimellitate (TOTM) is 70 kilograms

(3) dioctyl sebacate (DOS) is 60 kilograms

(4) tributyl acetylcitrate is 90 kilograms

(5) DX-360 is 60 kilograms

(6) calcium-zinc composite stabilizing agent is 50 kilograms

(7) epoxy soybean oil (ESO) is 15 kilograms

(8) antimonous oxide is 15 kilograms

(9) magnesium hydroxide 120 kg

(10) meticulous lime carbonate is 100 kilograms.

Polyvinyl chloride (PVC) RESINS, available from the outstanding commerce and trade company limited of Tangshanization, DX-360, available from the grand chemical industry in Guangzhou hundred million company limited, calcium-zinc composite stabilizing agent is available from the CZ-601 of Wenzhou Tiansheng Plastic Auxiliary Co., Ltd. series.Production process of the present invention by batching, mixing, extrude three big technologies and form.Batching is exactly that various starting material are quantitatively carried out proportioning according to prescription; The mixing various starting material high-speed mixing that will prepare exactly; Extrude the plasticizing of heating of exactly that high-speed mixing is good raw material, form the plastic cement particulate product.Its production process is that earlier batching speed is mixed, again with the batch mixing plasticizing and extrude pelletizing, after cooling detects qualified back packing dispatches from the factory.

Claims (2)

1, a kind of environment-friendly polyvinyl chloride cable sheathing compound is characterized in that: described sheath material mainly is prepared from by following substances in parts by weight:

Polyvinyl chloride (PVC) RESINS 40-45 part

Trioctyl trimellitate 5-7 part

Dioctyl sebacate 4-6 part

Tributyl acetylcitrate 8-10 part

DX-360 5-7 part

Calcium-zinc composite stabilizing agent 4-6 part

Epoxy soybean oil 1-1.5 part

Antimonous oxide 1-1.5 part

Magnesium hydroxide 10-13 part

Meticulous lime carbonate 10-13 part.

2, environment-friendly polyvinyl chloride cable sheathing compound as claimed in claim 1 is characterized in that: described sheath material mainly is prepared from by following substances in parts by weight:

42 parts of polyvinyl chloride (PVC) RESINS

7 parts of trioctyl trimellitates

6 parts of dioctyl sebacates

9 parts of tributyl acetylcitrates

6 parts of DX-360

5 parts of calcium-zinc composite stabilizing agents

1.5 parts of epoxy soybean oils

1.5 parts of antimonous oxides

12 parts of magnesium hydroxides

10 parts in meticulous lime carbonate.