CN103382288A - Automobile distributor cap - Google Patents

Abstract

The invention discloses an automobile distributor cap. The automobile distributor cap comprises the following raw materials by weight: 100 to 103 parts of a PET resin, 13 to 18 parts of nanometer meerschaum powder, 2 to 3 parts of ethylene bisstearamide, 4 to 5 parts of feldspar powder, 2 to 3 parts of talcum powder, 1 to 2 parts of triphenyl phosphate, 1 to 2 parts of polypropylene glycol diglycidyl ether, 2 to 3 parts of fumed silica, 1 to 2 parts of octyl epoxy stearate, 1 to 2 parts of gamma-(2,3-epoxypropanolato)propyl trimethoxy silane, 2 to 3 parts of dibutyltin dilaurate, 0.8 to 1 part of polycarbodiimide and 3 to 4 parts of a modification auxiliary agent. The distributor cap produced in the invention has the advantages of a reasonable raw materials formula and excellent high temperature resistance, crack resistance and flame resistance.

Description

A kind of automobile distributor controlled lid

Technical field

The present invention relates generally to a kind of distributor plate, relates in particular to a kind of automobile distributor controlled lid.

Background technology

PET is the polymkeric substance of oyster white or light yellow highly crystalline, surface smoothing and glossy.Anti-creep, fatigue resistance, rub resistance are good, wear away little and hardness is high, have toughness maximum in thermoplastics; Electrical insulation capability is good, and temperature influence is little, but corona resistance is relatively poor.Nontoxic, weathering resistance, chemical proof good stability, water-intake rate is low, and weak acid resistant and organic solvent, but thermo-labile water soaking are not alkaline-resisting.The second-order transition temperature of PET resin is higher, and crystallization velocity is slow, and molding cycle is long, and shaping cycle is long, and molding shrinkage is large, poor dimensional stability, and the moulding of crystallization is fragility, and thermotolerance is low etc.; The large multiplex nanometer sepiolite powder of the automobile distributor controlled lid of traditional mode of production strengthens the bad performances such as heat-drawn wire of improving PET, but automobile distributor controlled lid still crack, damage etc. can often occur, affected the normal use of car, therefore easily cause potential safety hazard, a kind of new, high performance distributor plate is necessary for the development of automobile cause.

Summary of the invention

The object of the invention is exactly for a kind of automobile distributor controlled lid is provided.

The present invention is achieved by the following technical solutions:

A kind of automobile distributor controlled lid, it is comprised of the raw material of following weight parts:

PET resin 100-103, nanometer sepiolite powder 13-18, ethylene bis stearamide 2-3, Feldspar Powder 4-5, talcum powder 2-3, triphenyl phosphite 1-2, polypropylene glycol diglycidyl ether 1-2, gas-phase silica 2-3, octyl epoxy stearate 1-2, γ-(2,3-glycidoxy) propyl trimethoxy silicane 1-2, dibutyl tin laurate 2-3, agent polycarbodiimide 0.8-1, modified additive 3-4;

Described modified additive is comprised of the raw material of following weight parts:

Chlorinatedpolyethylene 70-80, eva resin 4-5, aluminum nitride powder 5-6, fatty acid polyglycol ester 1-2, chromium boride 0.2-0.4, whiteruss 1-2;

Above-mentioned fatty acid polyglycol ester and aluminum nitride powder are mixed, add the eva resin, the rising temperature is incubated 1-2 hour to 80-90 ℃, adds each raw material of residue, and 1000-1200 rev/min was disperseed 10-15 minute, ball milling, and oven dry is sieved, and gets the particle of 2-3 μ m.

A kind of preparation method of automobile distributor controlled lid comprises the following steps:

With talcum powder and polypropylene glycol diglycidyl ether, γ-(2, the 3-glycidoxy) propyl trimethoxy silicane mixes, stir, insulation is 1-2 hour under 80-90 ℃, add gas-phase silica, fully stir, be cooled to normal temperature, send in high-speed mixer and mixed 1-2 processed minute, rotating speed is 800-900 rev/min; Nanometer sepiolite powder, octyl epoxy stearate, modified additive, ethylene bis stearamide are mixed, and 300-400 rev/min was disperseed 6-7 minute; Each raw material after above-mentioned processing is mixed with surplus stock, stir, send into twin screw extruder, extrude injection moulding through twin screw extruder.

Advantage of the present invention is:

The distributor plate composition of raw materials that the present invention produces is reasonable, high temperature resistant, cracking resistance becomes,, flame retardant properties is outstanding.Cost is low.

Embodiment

Embodiment 1

A kind of automobile distributor controlled lid, it is comprised of the raw material of following weight parts (kilogram):

PET resin 103, nanometer sepiolite powder 18, ethylene bis stearamide 3, Feldspar Powder 5, talcum powder 3, triphenyl phosphite 1-2, polypropylene glycol diglycidyl ether 2, gas-phase silica 3, octyl epoxy stearate 2, γ-(2,3-glycidoxy) propyl trimethoxy silicane 2, dibutyl tin laurate 2, agent polycarbodiimide 0.8, modified additive 4;

Described modified additive is comprised of the raw material of following weight parts:

Chlorinatedpolyethylene 80, eva resin 5, aluminum nitride powder 6, fatty acid polyglycol ester 2, chromium boride 0.4, whiteruss 1;

Above-mentioned fatty acid polyglycol ester and aluminum nitride powder are mixed, add the eva resin, rising temperature to 90 ℃ is incubated 2 hours, adds each raw material of residue, and 1200 rev/mins were disperseed 15 minutes, ball milling, and oven dry is sieved, and gets the particle of 3 μ m.

A kind of preparation method of automobile distributor controlled lid comprises the following steps:

Talcum powder and polypropylene glycol diglycidyl ether, γ-(2,3-glycidoxy) propyl trimethoxy silicane are mixed, stir, insulation is 1 hour under 90 ℃, adds gas-phase silica, fully stirs, be cooled to normal temperature, send into mixed the system 2 minutes in high-speed mixer, rotating speed is 800 rev/mins; Nanometer sepiolite powder, octyl epoxy stearate, modified additive, ethylene bis stearamide are mixed, and 400 rev/mins were disperseed 6 minutes; Each raw material after above-mentioned processing is mixed with surplus stock, stir, send into twin screw extruder, extrude injection moulding through twin screw extruder.

Performance test:

Heat-drawn wire: 213 ℃;

Tensile strength: 146.2MPa;

Flexural strength: 212MPa;

Flame retardant resistance, UL94 measures: will light with the sample that processing method of the present invention makes, and flame be removed rear sample certainly put out fast in 10s, without the melt drippage of burning, result is VO.

Claims (2)

1. automobile distributor controlled lid is characterized in that what it was comprised of the raw material of following weight parts:

PET resin 100-103, nanometer sepiolite powder 13-18, ethylene bis stearamide 2-3, Feldspar Powder 4-5, talcum powder 2-3, triphenyl phosphite 1-2, polypropylene glycol diglycidyl ether 1-2, gas-phase silica 2-3, octyl epoxy stearate 1-2, γ-(2,3-glycidoxy) propyl trimethoxy silicane 1-2, dibutyl tin laurate 2-3, agent polycarbodiimide 0.8-1, modified additive 3-4;

Described modified additive is comprised of the raw material of following weight parts:

Chlorinatedpolyethylene 70-80, eva resin 4-5, aluminum nitride powder 5-6, fatty acid polyglycol ester 1-2, chromium boride 0.2-0.4, whiteruss 1-2;

Above-mentioned fatty acid polyglycol ester and aluminum nitride powder are mixed, add the eva resin, the rising temperature is incubated 1-2 hour to 80-90 ℃, adds each raw material of residue, and 1000-1200 rev/min was disperseed 10-15 minute, ball milling, and oven dry is sieved, and gets the particle of 2-3 μ m.

2. the preparation method of an automobile distributor controlled lid as claimed in claim 1 is characterized in that comprising the following steps:

With talcum powder and polypropylene glycol diglycidyl ether, γ-(2, the 3-glycidoxy) propyl trimethoxy silicane mixes, stir, insulation is 1-2 hour under 80-90 ℃, add gas-phase silica, fully stir, be cooled to normal temperature, send in high-speed mixer and mixed 1-2 processed minute, rotating speed is 800-900 rev/min; Nanometer sepiolite powder, octyl epoxy stearate, modified additive, ethylene bis stearamide are mixed, and 300-400 rev/min was disperseed 6-7 minute; Each raw material after above-mentioned processing is mixed with surplus stock, stir, send into twin screw extruder, extrude injection moulding through twin screw extruder.